DISHWASHER

Abstract

A dishwasher may include: a tub, a water storage chamber disposed below the tub and configured to store water in the tub, a filter disposed inside the water storage chamber and configured to filter water introduced into the water storage chamber, a filter motor configured to generate a rotational force to rotate the filter, and an elastic member comprising an elastic material configured to guide rotation of the filter. The elastic member may include a first body part mountable on an upper portion of the filter and comprising a first opening, and a second body part extending upward from the first body part and including a second opening larger than the first opening.

Claims

1. A dishwasher comprising: a tub; a water storage chamber disposed below the tub and configured to store water in the tub; a filter disposed inside the water storage chamber and configured to filter water introduced into the water storage chamber; a filter motor configured to generate a rotational force to rotate the filter; and an elastic member comprising an elastic material configured to guide rotation of the filter, wherein the elastic member comprises: a first body part mountable on an upper portion of the filter and comprising a first opening; and a second body part extending upward from the first body part and comprising a second opening larger than the first opening.

2. The dishwasher according to claim 1, wherein the elastic member further comprises a protruding rib extending upward from the second body part and configured to be bent in an inner direction of the second opening.

3. The dishwasher according to claim 2, wherein the filter comprises a first filter, the dishwasher further comprises a second filter configured to filter water introduced into the water storage chamber and flowing toward the first filter, and the protruding rib of the elastic member is configured to be pressed by at least one of the second filter and a bottom of the tub.

4. The dishwasher according to claim 1, wherein the filter includes a first filter, the dishwasher further comprises a second filter configured to filter water introduced into the water storage chamber and flowing toward the first filter, and the elastic member is configured to provide a seal between the first filter and the second filter, or to provide a seal between the first filter and a bottom of the tub.

5. The dishwasher according to claim 1, further comprising a shaft configured to be rotated by the filter motor and configured to transmit the rotational force of the filter motor to the filter.

6. The dishwasher according to claim 5, wherein the shaft comprises: a shaft body extending in a vertical direction; a motor coupling portion formed at a first end of the shaft body and couplable to a motor shaft of the filter motor; a first hook protruding upward from a second end of the shaft body; a second hook disposed to be spaced apart from the first hook and protruding upward from the second end of the shaft body; and a shaft groove formed between the first hook and the second hook.

7. The dishwasher according to claim 5, wherein the filter includes a first filter, the dishwasher further comprises a second filter configured to filter water introduced into the water storage chamber and flowing toward the first filter, and the second filter comprises a filter body, wherein at least a portion of the filter body is disposed inside the first filter; and a hollow portion formed inside the filter body so that the shaft is insertable therein.

8. The dishwasher according to claim 7, wherein the first hook and the second hook of the shaft are configured to pass through the hollow portion and to be caught on an upper end of the hollow portion.

9. The dishwasher according to claim 8, further comprising a shaft fixer couplable to the shaft groove so that the first hook and the second hook are maintained in a state of being caught on the upper end of the hollow portion.

10. The dishwasher according to claim 5, further comprising a rotating frame configured to connect the shaft and the filter and configured to be rotated by the shaft.

11. The dishwasher according to claim 10, wherein the rotating frame comprises: a filter fixing part mountable on a lower portion of the filter; and a shaft fixing part connected to the filter fixing part and configured to be engaged with an outer surface of the shaft.

12. The dishwasher according to claim 11, wherein the shaft comprises: a first protrusion protruding from the outer surface of the shaft; and a first recess portion provided on the outer surface of the shaft and adjacent to the first protrusion, and the shaft fixing part of the rotating frame comprises: a passing portion provided such that the shaft passes therethrough; a second protrusion protruding from an inner surface of the passing portion and corresponding to the first recess portion; and a second recess portion provided on the inner surface of the passing portion and adjacent to the second protrusion and corresponding to the first protrusion.

13. The dishwasher according to claim 2, wherein the filter includes a first filter, the dishwasher further comprises: a second filter disposed inside the water storage chamber wherein at least a portion of the second filter is surrounded by the first filter; and a third filter disposed above the first filter configured to be placed on the bottom of the tub and comprising a filter hole, the second filter comprises: a filter body insertable into the filter hole of the third filter; a flange part protruding from an outer surface of the filter body and configured to press downward the protruding rib of the elastic member; and a fixing rib formed on the flange part, and the third filter comprises a rib groove corresponding to the fixing rib.

14. The dishwasher according to claim 1, wherein the first body part of the elastic member comprises: an inner wall portion forming the first opening and corresponding to an inner surface of the filter; an outer wall portion disposed to be spaced apart from the inner wall portion corresponding to an outer surface of the filter and extending downward from the second body part; a connecting wall portion connecting the inner wall portion and the outer wall portion; and an insertion groove formed by the inner wall portion, the outer wall portion, and the connecting wall portion and having a shape open downward so that the upper portion of the filter is insertable therein.

15. The dishwasher according to claim 1, wherein the filter motor is disposed outside the water storage chamber, and the dishwasher further comprises a motor cover configured to cover the filter motor to reduce water flowing out from the water storage chamber from being introduced into the filter motor and comprising a cover hole configured to drain water flowing out from the water storage chamber.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other aspects, features and advantages of certain embodiments of the present disclosure will be more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0013] FIG. 1 is a perspective view of a dishwasher according to various embodiments;

[0014] FIG. 2 is a side cross-sectional view of the dishwasher according to various embodiments;

[0015] FIG. 3 is a partial perspective view illustrating a lower portion of the dishwasher according to various embodiments;

[0016] FIG. 4 is a perspective view illustrating a sump assembly of the dishwasher according to various embodiments;

[0017] FIG. 5 is an exploded perspective view of the sump assembly of the dishwasher illustrated in FIG. 4 according to various embodiments;

[0018] FIG. 6 is a side cross-sectional view of the sump assembly of the dishwasher illustrated in FIG. 4 according to various embodiments;

[0019] FIG. 7 is a perspective view of a sump of the dishwasher according to various embodiments;

[0020] FIG. 8 is a perspective view of a sump of the dishwasher illustrated in FIG. 7 viewed from another direction according to various embodiments;

[0021] FIG. 9 is a perspective view of a sump of the dishwasher illustrated in FIG. 7 viewed from a direction different from the direction in FIG. 8 according to various embodiments;

[0022] FIG. 10 is a diagram illustrating a bottom view of a partial configuration of the sump of the dishwasher illustrated in FIG. 7 according to various embodiments;

[0023] FIG. 11 is an exploded perspective view illustrating a circulation pump, a drainage pump, and a piping structure of the dishwasher illustrated in FIG. 7 according to various embodiments;

[0024] FIG. 12 is an exploded perspective view illustrating the circulation pump, the drainage pump, and the piping structure of the dishwasher illustrated in FIG. 7 according to various embodiments;

[0025] FIG. 13 is an exploded perspective view illustrating the circulation pump, the drainage pump, and the piping structure of the dishwasher illustrated in FIG. 7 according to various embodiments;

[0026] FIG. 14 is a perspective view illustrating a filter cleaning structure of the dishwasher according to various embodiments;

[0027] FIG. 15 is a perspective view illustrating the filter cleaning structure of the dishwasher illustrated in FIG. 14 viewed from another direction according to various embodiments;

[0028] FIG. 16 is a perspective view illustrating a filter assembly according to various embodiments;

[0029] FIG. 17 is a perspective view illustrating the filter assembly illustrated in FIG. 16 viewed from another direction according to various embodiments;

[0030] FIG. 18 is an exploded perspective view of the filter assembly according to various embodiments;

[0031] FIG. 19 is a diagram illustrating example filters according to various embodiments;

[0032] FIG. 20 is a perspective view illustrating a filter shaft according to various embodiments;

[0033] FIG. 21 is a diagram illustrating one side of the filter shaft illustrated in FIG. 20 according to various embodiments;

[0034] FIG. 22 is a diagram illustrating another side of the filter shaft illustrated in FIG. 20 according to various embodiments;

[0035] FIG. 23 is a cut away perspective view of the filter shaft illustrated in FIG. 20 according to various embodiments;

[0036] FIG. 24 is a perspective view illustrating a rotating frame according to various embodiments;

[0037] FIG. 25 is a partial sectional perspective view illustrating the rotating frame illustrated in FIG. 24 according to various embodiments;

[0038] FIG. 26 is a perspective view illustrating a shaft fixer according to various embodiments;

[0039] FIG. 27 is a perspective view illustrating an elastic member according to various embodiments;

[0040] FIG. 28 is a sectional perspective view illustrating the elastic member illustrated in FIG. 27 according to various embodiments;

[0041] FIG. 29 is a cross-sectional view of the elastic member illustrated in FIG. 27 according to various embodiments;

[0042] FIG. 30 is a side cross-sectional view taken along a line A-A of FIG. 3 according to various embodiments;

[0043] FIG. 31 is a plan cross-sectional view taken along a line B-B of FIG. 30 according to various embodiments;

[0044] FIG. 32 is a plan cross-sectional view taken along a line C-C of FIG. 30 according to various embodiments;

[0045] FIG. 33 is a diagram illustrating an enlarged view of a portion D of FIG. 30 according to various embodiments; and

[0046] FIG. 34 is a diagram illustrating an enlarged view of a portion E of FIG. 30 according to various embodiments.

DETAILED DESCRIPTION

[0047] Various example embodiments and terms used in this disclosure are not intended to limit the technical features described in this disclosure to specific embodiments, and should be understood to include various modifications, equivalents, or substitutes of the various embodiments.

[0048] In connection with the description of the drawings, like reference numbers may be used for like or related components.

[0049] The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise.

[0050] In this disclosure, each of phrases such as A or B, at least one of A and B, at least one of A or B, A, B or C, at least one of A, B and C, and at least one of A, B, or C may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof.

[0051] The term and/or includes any combination of a plurality of related components or any one of a plurality of related components.

[0052] Terms such as first, second, primary, and secondary may simply be used to distinguish a given component from other corresponding components, and do not limit the corresponding components in any other aspect (e.g., importance or order).

[0053] When any (e.g., a first) component is referred to as being coupled or connected to another (e.g., a second) component with or without the terms functionally or communicatively, this may refer, for example, to any component may be connected to the other component directly (e.g., by a wire), wirelessly, or through a third component.

[0054] The terms comprises, has, and the like are intended to indicate that there are features, numbers, steps, operations, components, parts, or combinations thereof described in this disclosure, and do not exclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0055] When any component is referred to as being connected, coupled, supported or in contact with another component, this includes a case in which the components are indirectly connected, coupled, supported, or in contact with each other through a third component as well as directly connected, coupled, supported, or in contact with each other.

[0056] When any component is referred to as being located on or over another component, this includes not only a case in which any component is in contact with another component but also a case in which another component is present between the two components.

[0057] The terms unit, module, and member may be implemented as software or hardware. According to embodiments, a plurality of units, modules, and members may be implemented as a single component, or a single unit, module, and member may include a plurality of components.

[0058] Terms such as unit, part, block, member, and module may denote a unit for processing at least one function or operation. For example, the terms may refer to at least one hardware such as a field-programmable gate array (FPGA)/an application specific integrated circuit (ASIC), at least one software stored in a memory, or at least one process processed by a processor.

[0059] An identification number assigned to each step is used to identify each step, the identification numeral does not describe the order of the steps, and each step may be performed differently from the order specified unless the context clearly states a particular order.

[0060] The terms front, rear, left, right, upper, lower, etc., used in the following description are defined based on the drawings, but the shape and position of each component are not limited by these terms. For example, the front may be defined as a +X side, and the rear may be defined as a X side. For example, based on the drawings, the right side may be defined as a +Y side, and the left side may be defined as a Y side. For example, based on the drawings, an upper side may be defined as a +Z side, and a lower side may be defined as a Z side. For example, referring to FIGS. 1 and 2, a direction to which a door 11 in a dishwasher 1 directs may be defined as the front (+X direction), and a direction opposite to the above direction may be defined as the rear (X direction).

[0061] Hereinafter, various example embodiments according to the present disclosure will be described in greater detail with reference to the accompanying drawings.

[0062] FIG. 1 is a perspective view of a dishwasher according to various embodiments. FIG. 2 is a side cross-sectional view of the dishwasher according to various embodiments.

[0063] Referring to FIGS. 1 and 2, a dishwasher 1 may include a main body 10. The main body 10 may form an outer appearance of the dishwasher 1.

[0064] The dishwasher 1 may include a tub 12 provided inside the main body 10. The tub 12 may form a washing chamber 10a. The tub 12 may be provided in a substantially box shape. One side of the tub 12 may be open. For example, the tub 12 may include an opening 12a. As an example, the front of the tub 12 may be open.

[0065] The dishwasher 1 may include the washing chamber 10a formed by the tub 12. The washing chamber 10a may be defined as an inner space of the tub 12. The washing chamber 10a may refer to a space where objects to be washed placed inside the tub 12 may be washed and dried.

[0066] The dishwasher 1 may include a machine room 10b provided below the tub 12. At least a portion of a sump 70, which will be described in greater detail below, may be disposed in the machine room 10b. The dishwasher 1 may include a base frame 16 forming the machine room 10b.

[0067] The dishwasher 1 may include a door 11. The door 11 may be configured to open and close the tub 12. The door 11 may be configured to open and close the opening 12a of the tub 12. The door 11 may be configured to open and close the washing chamber 10a. The door 11 may be installed on the main body 10 to open and close the tub 12. The door 11 may be rotatably mounted on the main body 10. The door 11 may be detachably mounted on the main body 10.

[0068] The dishwasher 1 may include an accommodating container 50. The accommodating container 50 may be provided inside the tub 12. The accommodating container 50 may accommodate dishes. The accommodating container 50 may store dishes. The accommodating container 50 may load dishes. The accommodating container 50 may hold dishes. However, the present disclosure is not limited thereto, and the accommodating container 50 may be configured to store not only dishes but also various items that may be washed in the washing chamber 10a. For example, the accommodating container 50 may accommodate various objects to be washed.

[0069] The accommodating container 50 may include at least one basket for storing dishes. The accommodating container 50 may include at least one rack assembly for storing dishes. As described above, the basket and/or the rack assembly may store not only dishes but also various items that may be washed in the washing chamber 10a. The basket and the rack assembly are interchangeable. The basket, which is described below, may also be referred to as the rack assembly.

[0070] For example, the accommodating container 50 may include a plurality of baskets 51, 52, and 53. The plurality of baskets 51, 52, and 53 may be configured to store various dishes. However, the present disclosure is not limited thereto. For example, the accommodating container 50 may include only some of the plurality of baskets 51, 52, and 53. For example, the accommodating container 50 may include only some of the plurality of baskets 51, 52, and 53. For example, the accommodating container 50 may include additional baskets in addition to the plurality of baskets 51, 52, and 53. For example, the accommodating container 50 may include a single basket.

[0071] The accommodating container 50 may include the middle basket 52 positioned in a middle portion of the dishwasher 1 in a height direction. The middle basket 52 may be configured to be withdrawn from the tub 12 or inserted into the tub 12. For example, the middle basket 52 may be configured to be supported on a middle guide rack 13b. For example, the middle guide rack 13b may be installed on a side surface 12c of the tub 12 to be able to slide toward the opening 12a of the tub 12.

[0072] The accommodating container 50 may include the lower basket 51 positioned in a lower portion of the dishwasher 1 in the height direction. The lower basket 51 may be configured to be withdrawn from the tub 12 or inserted into the tub 12. For example, the lower basket 51 may be configured to be supported on a lower guide rack 13a. For example, the lower guide rack 13a may be installed on the side surface 12c of the tub 12 to be able to slide toward the opening 12a of the tub 12.

[0073] Relatively bulky dishes may be stored in the plurality of baskets 51 and 52. However, the types of dishes stored in the plurality of baskets 51 and 52 are not limited to relatively bulky dishes. For example, not only relatively bulky dishes but also relatively small dishes may be stored in the plurality of baskets 51 and 52.

[0074] The accommodating container 50 may include the upper basket 53 positioned in an upper portion of the dishwasher 1 in the height direction. The upper basket 53 may formed in the form of a rack assembly to accommodate relatively small dishes. For example, in the upper basket 53, cooking tools or cutlery such as a ladle, a knife, a turner, etc., may be stored. However, the types of dishes stored in the upper basket 53 are not limited to the above examples.

[0075] The upper basket 53 may be configured to be withdrawn from the tub 12 or inserted into the tub 12. For example, the upper basket 53 may be slidably moved by an upper guide rack 13c. For example, the upper basket 53 may be configured to be supported by the upper guide rack 13c. For example, the upper guide rack 13c may be installed on the side surface 12c of the tub 12.

[0076] The dishwasher 1 may include an injection device 40 configured to inject water. The injection device 40 may inject water into the inside of the tub 12. The injection device 40 may inject water into the washing chamber 10a. The injection device 40 may inject water toward the objects to be washed, which are placed inside the tub 12. The injection device 40 may inject water toward dishes stored in the accommodating container 50. The injection device 40 may be supplied with water from the sump 70, which will be described in greater detail below, and/or a duct 20, which will be described in greater detail below.

[0077] In this disclosure, water may refer to both water mixed with detergent (and/or rinse) and water not mixed with detergent (and/or rinse).

[0078] The injection device 40 may include at least one injection unit. The injection device 40 may include one injection unit or may include a plurality of injection units 41, 42, and 43.

[0079] For example, the injection device 40 may include the first injection unit 41 disposed below the lower basket 51 of the dishwasher 1 in the height direction. For example, the first injection unit 41 is connected to the sump 70, and water inside the sump 70 may be directly supplied to the first injection unit 41. For example, the injection device 40 may include the second injection unit 42 disposed below the middle basket 52 of the dishwasher 1 in the height direction. For example, the second injection unit 42 is connected to the duct 20, and water inside the sump 70 may be supplied to the second injection unit 42 through the duct 20. For example, the injection device 40 may include the third injection unit 43 disposed above the upper basket 53 of the dishwasher 1 in the height direction. For example, the third injection unit 43 is connected to the duct 20, and water inside the sump 70 may be supplied to the third injection unit 43 through the duct 20.

[0080] However, the number of injection units is not limited to the above example. The injection device 40 may include two or fewer injection units. The injection device 40 may include four or more injection units.

[0081] Each of the plurality of injection units 41, 42, and 43 may be configured to inject water while rotating. The first injection unit 41, the second injection unit 42, and the third injection unit 43 may each be configured to inject water while rotating. The plurality of injection units 41, 42, and 43 may be referred to as a plurality of the injection rotors 41, 42, and 43. The first injection unit 41, the second injection unit 42, and the third injection unit 43 may be referred to as the first injection rotor 41, the second injection rotor 42, and the third injection rotor 43, respectively.

[0082] However, the injection device 40 may inject water in a manner different from the example described above. For example, the first injection unit 41 may be fixed to a bottom 12b of the tub 12, unlike the second injection unit 42 and the third injection unit 43. In this case, the first injection unit 41 is configured to inject water in a substantially horizontal direction by a fixed nozzle, and the water injected from the nozzle of the first injection unit 41 in the substantially horizontal direction may move upward as a direction thereof is changed by a switching assembly (not shown) disposed inside the washing chamber 10a. The switching assembly is installed on a rail (not shown) and may be configured to be capable of translational movement along the rail. Although the first injection unit 41 has been described above as an example, as with the example described above, the second injection unit 42 and the third injection unit 43 may also be configured to inject water using fixed nozzles.

[0083] The dishwasher 1 may include the sump 70. The sump 70 may be configured to receive water. The sump 70 may be configured to store water inside the tub 12. The sump 70 may collect water in the washing chamber 10a. For example, the bottom 12b of the tub 12 may be configured to be inclined downward toward the sump 70 in order for the sump 70 to smooth water collection. The water in the tub 12 may flow along an inclination of the bottom 12b of the tub 12 to be smoothly introduced into the sump 70.

[0084] The sump 70 may be configured to distribute the water stored in the sump 70 to the injection device 40. The sump 70 may selectively provide the water inside the sump 70 to the injection device 40. The sump 70 may supply the stored water to at least one of the plurality of injection units 41, 42, and 43. However, the present disclosure is not limited to the above description, and the sump 70 may not distribute water to the injection device 40. For example, the dishwasher 1 may further include a distribution device separate from the sump 70. However, for convenience of explanation, an example in which water is stored in the sump 70 and the stored water is distributed to the injection device 40 will be described in greater detail below.

[0085] The dishwasher 1 may include the duct 20. The duct 20 may be disposed inside the tub 12. The duct 20 may be disposed in the washing chamber 10a. The duct 20 may guide water inside the tub 12. The duct 20 may deliver water provided from the sump 70 to the injection device 40. For example, the duct 20 may deliver water flowing out of the sump 70 to the second injection unit 42 and the third injection unit 43.

[0086] The dishwasher 1 may include a filter assembly 30. The filter assembly 30 may be configured to filter water introduced into the sump 70. Water filtered through the filter assembly 30 may be pumped by a circulation pump 61 to be provided to the duct 20 and/or the injection device 40. The filter assembly 30 may be detachably mounted on the sump 70. For example, the filter assembly 30 may include at least one of filters 310, 320 and/or 330 (see, e.g., FIG. 5).

[0087] The dishwasher 1 may include at least one pump 60. The at least one pump 60 may move water stored in the sump 70. The at least one pump 60 may circulate or drain water stored in the sump 70. For example, the dishwasher 1 may include at least one of the circulation pump 61 and a drainage pump 62.

[0088] FIG. 3 is a partial perspective view illustrating a lower portion of the dishwasher according to various embodiments. FIG. 4 is a perspective view illustrating a sump assembly of the dishwasher according to various embodiments. FIG. 5 is an exploded perspective view of the sump assembly of the dishwasher illustrated in FIG. 4 according to various embodiments. FIG. 6 is a side cross-sectional view of the sump assembly of the dishwasher illustrated in FIG. 4 according to various embodiments.

[0089] The dishwasher 1 may include the sump 70 and components coupled to the sump 70 to be capable of moving water stored in the sump 70 or fixing/supporting the sump 70. The sump 70 and the components coupled to the sump 70 may be referred to as a sump assembly.

[0090] The sump 70 may include a sump housing 71. The sump housing 71 may be detachably coupled to the bottom 12b of the tub 12. Most of the sump housing 71 may be located in the machine room 10b.

[0091] The sump housing 71 may include a water storage chamber 711. The water storage chamber 711 may be configured to store water. The water storage chamber 711 may be disposed below the tub 12. The water storage chamber 711 may be configured to store water in the tub 12. Water flowing along the bottom 12b of the tub 12 may be introduced into the water storage chamber 711. The water storage chamber 711 may be configured to store water introduced through a water supply portion 715 (see FIG. 18) from an external water supply source. The water storage chamber 711 may include a shape for holding water. The water storage chamber 711 may include a shape with an open top. The water storage chamber 711 may include a downwardly concave shape.

[0092] The sump housing 71 may include a distribution chamber 712. The distribution chamber 712 may be partitioned from the water storage chamber 711. The distribution chamber 712 may be configured to receive water. The distribution chamber 712 may receive water pumped by the circulation pump 61. The distribution chamber 712 may receive water to be provided to the injection device 40. Water held in the distribution chamber 712 may be provided to the injection device 40 through a distribution cover 73, which will be described in greater detail below. The distribution chamber 712 may include a flow path 712f provided to guide water pumped by the circulation pump 61 to the injection device 40. Hereinafter, the flow path 712f may be referred to as the third flow path 712f to be distinguished from a first flow path 991 and a second flow path 992, which will be described in greater detail below. Also, in the first flow path 991, the second flow path 992 and the third flow path 712f, as described above, the ordinal numbers first, second and third do not limit the components.

[0093] The sump housing 71 may include a chamber inlet 7121. The chamber inlet 7121 may communicate with the distribution chamber 712. The chamber inlet 7121 may extend downward from the distribution chamber 712. Water pumped by the circulation pump 61 may flow into the distribution chamber 712 through the chamber inlet 7121. The chamber inlet 7121 may guide water pumped by the circulation pump 61 to the distribution chamber 712. For example, water pumped by the circulation pump 61 may be supplied to the distribution chamber 712 through a connector 91, which will be described in greater detail below, and the chamber inlet 7121. A flow path (or space) formed inside the chamber inlet 7121 may be defined as a configuration included in the distribution chamber 712. For example, the flow path 712f may include a flow path extending from the chamber inlet 7121 to chamber outlets 731, 732 and/or 733, which will be described in greater detail below.

[0094] The drawings illustrate that the water storage chamber 711 and the distribution chamber 712 are integrally formed as components of the sump housing 71. However, the present disclosure is not limited to the illustrated example. The water storage chamber 711 and the distribution chamber 712 may be provided in separate configurations.

[0095] The sump housing 71 may include a circulation pump coupling portion 713 to which the circulation pump 61 is coupled. The circulation pump coupling portion 713 may communicate with the water storage chamber 711. Water in the water storage chamber 711 may flow toward the circulation pump 61 through the circulation pump coupling portion 713.

[0096] The sump housing 71 may include a drainage pump coupling portion 714 to which the drainage pump 62 is connected. The drainage pump coupling portion 714 may communicate with the water storage chamber 711. Water and foreign substances in the water storage chamber 711 may flow toward the drainage pump 62 through the drainage pump coupling portion 714.

[0097] The sump housing 71 may include the water supply portion 715 (see FIG. 18). The water supply portion 715 may provide water supplied from the external water supply source (not shown) to the water storage chamber 711. The water supply portion 715 may communicate with the water storage chamber 711. A water supply valve (not shown) may be provided on at least one flow path connecting the external water supply source and the water storage chamber 711.

[0098] The sump 70 may include a distribution valve 72. The distribution valve 72 may be configured to open or close the flow path 712f of the distribution chamber 712. While the distribution valve 72 opens the flow path 712f of the distribution chamber 712, water pumped by the circulation pump 61 may be introduced into the distribution chamber 712. While the distribution valve 72 closes the flow path 712f of the distribution chamber 712, water pumped by the circulation pump 61 may be not introduced into the distribution chamber 712.

[0099] Opening the flow path 712f may refer to not only completely opening the flow path 712f, but also opening at least a portion of the flow path 712f to allow water to flow through the flow path 712f. Closing the flow path 712f may refer to not only completely closing the flow path 712f, but also covering at least a portion of the flow path 712f to prevent/block and/or reduce water from flowing through the flow path 712f or to reduce a flow rate of water flowing through the flow path 712f.

[0100] For example, the distribution valve 72 may include a distribution motor 721, a distribution shaft 722, and a distribution disc 723. The distribution motor 721 may generate a rotational force. The distribution shaft 722 may connect the distribution motor 721 and the distribution disc 723. A first end of the distribution shaft 722 may be coupled with a motor shaft of the distribution motor 721. A second end of the distribution shaft 722 may be coupled with the distribution disc 722. The distribution shaft 722 may transmit the rotational force generated by the distribution motor 721 to the distribution disc 723. However, the distribution motor 721 and the distribution disc 723 may be directly connected without the distribution shaft 722. The distribution disc 723 may be configured to rotate by the rotational force generated from the distribution motor 721. The distribution disc 723 may be disposed inside the distribution chamber 712. The distribution disc 723 may open or close the flow path 712f while rotating inside the distribution chamber 712.

[0101] For example, the distribution disc 723 may include a communication hole 7231. When the communication hole 7231 of the distribution disc 723 is disposed to correspond to the flow path 712f, the flow path 712f may be opened. In this case, water pumped by the circulation pump 61 may flow toward the distribution chamber 712. When the communication hole 7231 of the distribution disc 723 is disposed so as not to correspond to the flow path 712f, the flow path 712f may be closed. In this case, water pumped by the circulation pump 61 may not flow toward the distribution chamber 712.

[0102] However, the present disclosure is not limited to the example described above, and the distribution valve 72 may include various known types of valves. The distribution valve 72 is not limited in the type and shape thereof as long as it may open or close the flow path 712f of the distribution chamber 712.

[0103] The sump 70 may include the distribution cover 73. The distribution cover 73 may be configured to cover at least a portion of the sump housing 71. The distribution cover 73 may be configured to cover the distribution chamber 712. The distribution cover 73 may be detachably coupled to the sump housing 71. For example, the distributor cover 73 may be rotationally coupled to the sump housing 71.

[0104] The distribution cover 73 may include at least one of the chamber outlet 731, 732 and/or 733. Water in the distribution chamber 712 may flow out through the at least one of the chamber outlet 731, 732 and/or 733. While the distribution cover 73 is coupled to the sump housing 71, the at least one of the chamber outlet 731, 732 and/or 733 may communicate with the distribution chamber 712. While the distribution cover 73 is coupled to the sump housing 71, the at least one of the chamber outlet 731, 732 and/or 733 may be connected to the injection device 40 to supply water in the distribution chamber 712 to the injection device 40. The chamber outlets 731, 732 and/or 733 may be referred to as outlets 731, 732 and/or 733.

[0105] For example, the distribution cover 73 may include a plurality of the chamber outlets 731, 732 and 733 corresponding to the plurality of injection units 41, 42, and 43, respectively. For example, the distribution cover 73 may include the first chamber outlet 731 connected to the first injection unit 41, the second chamber outlet 732 connected to the second injection unit 42, and the third chamber outlet 733 connected to the third injection unit 43. The first chamber outlet 731 may be directly connected to the first injection unit 41. The second chamber outlet 732 may be connected to the second injection unit 42 through the duct 20 (see FIG. 2). The third chamber outlet 733 may be connected to the third injection unit 43 through the duct 20 (see FIG. 2). Water in the distribution chamber 712 may flow out through the first chamber outlet 731 to flow into the first injection unit 41. The water in the distribution chamber 712 may flow out through the second chamber outlet 732 to be introduced into the duct 20, and the water introduced into the duct 20 may flow into the second injection unit 42. The water in the distribution chamber 712 may flow out through the third chamber outlet 733 to be introduced into the duct 20, and the water introduced into duct 20 may flow into the third injection unit 43. However, the present disclosure is not limited to the example described above. As an example, at least some of the plurality of chamber outlets 731, 732, and 733 may be formed integrally, and the flowed-out water may split through the integrally formed structure while flowing.

[0106] The drawings illustrate that the distribution cover 73 is configured separately from the sump housing 71. However, the present disclosure is not limited to the illustrated example. Unlike what is shown in the drawings, the distribution cover 73 and the sump housing 71 may be formed integrally. The distribution cover 73 may be provided as a component of the sump housing 71.

[0107] The filter assembly 30 may include at least one of the filters 310, 320 and/or 330 for filtering water. The filter assembly 30 may include at least one of the first filter 310, the second filter 320, or the third filter 330. The filter assembly 30 may include a structure for rotating the first filter 310. An explanation of this will be provided in greater detail below.

[0108] The dishwasher 1 may include a support plate 80. The support plate 80 may be configured to support at least a portion of the filter assembly 30. The support plate 80 may be configured to support one side 331a of the third filter 330. The support plate 80 may be configured to support a portion of an edge of the third filter 330. The support plate 80 may be detachably mounted on the tub 12. The support plate 80 may be configured to cover at least a portion of the sump housing 71.

[0109] The support plate 80 may include a plate body 81. For example, the plate body 81 may include a substantially semicircular shape. For example, the plate body 81 may include a plurality of holes and may function as a type of filter.

[0110] The support plate 80 may include a plate opening 82. The plate opening 82 may be formed by penetrating the plate body 81. The plate opening 82 may be provided to correspond to the distribution chamber 712.

[0111] The support plate 80 may include a seating portion 83. The seating portion 83 may be provided to support the one side 331a of the third filter 330. The seating portion 83 may be formed on an edge of the plate body 81. The seating portion 83 may be formed to be stepped from the plate body 81. The seating portion 83 may include a shape of being recessed from an upper surface of the plate body 81.

[0112] The dishwasher 1 may include the circulation pump 61. The circulation pump 61 may be configured to pump water stored in the sump 70. The circulation pump 61 may be configured to pump water received in the water storage chamber 711. The water pumped by the circulation pump 61 may flow into the distribution chamber 712 or may be circulated to flow into the water storage chamber 711. A detailed explanation of this will be given below. The circulation pump 61 may be disposed in the machine room 10b (see, e.g., FIG. 2).

[0113] The circulation pump 61 may include a pump inlet 611 and a pump outlet 612. Water received in the water storage chamber 711 may be introduced into the circulation pump 61 through the pump inlet 611. Water in the circulation pump 61 may flow out through the pump outlet 612. The pump inlet 611 may be referred to as the inlet 611. The pump outlet 612 may be referred to as the outlet 612.

[0114] The dishwasher 1 may include the drainage pump 62. The drainage pump 62 may drain water stored in the sump 70. The drainage pump 62 may discharge water received in the water storage chamber 711 to the outside. Water pumped by drainage pump 62 and foreign substances contained in the water (e.g., food waste, etc.) may be discharged to the outside. The drainage pump 62 may be disposed in the machine room 10b (see, e.g., FIG. 2).

[0115] FIG. 7 is a partial perspective view of a sump of the dishwasher according to various embodiments. FIG. 8 is a perspective view of the sump of the dishwasher illustrated in FIG. 7 viewed another direction according to various embodiments. FIG. 9 is a perspective view of the sump of the dishwasher illustrated in FIG. 7 from a direction different from the direction in FIG. 8 according to various embodiments. FIG. 10 is a diagram illustrating a bottom view of the partial configuration of the dishwasher illustrated in FIG. 7 according to various embodiments. FIG. 11 is an exploded perspective view illustrating a circulation pump, a drainage pump, and a piping structure of the dishwasher illustrated in FIG. 7 according to various embodiments. FIG. 12 is an exploded perspective view of the circulation pump, the drainage pump, and the piping structure of the dishwasher illustrated in FIG. 7 according to various embodiments. FIG. 13 is an exploded perspective view illustrating the circulation pump, the drainage pump, and the piping structure of the dishwasher illustrated in FIG. 7 according to various embodiments.

[0116] The dishwasher 1 may include the connector 91. The connector 91 may receive water pumped by the circulation pump 61. The connector 91 may receive water flowing out of the circulation pump 61. The connector 91 may be configured to guide water flowing out of the circulation pump 61 to the distribution chamber 712 or to a connection pipe 92, which will be described in greater detail below.

[0117] The connector 91 may include a connector inlet 911. The inlet 911 of the connector 91 may be detachably coupled to the pump outlet 612 of the circulation pump 61. The connector inlet 911 of the connector 91 may be connected to the pump outlet 612 of the circulation pump 61. Water flowing out of the pump outlet 612 of the circulation pump 61 may flow into the connector inlet 911 of the connector 91. The connector inlet 911 may be referred to as the inlet 911.

[0118] The connector 91 may include a first connector outlet 912. The first connector outlet 912 of the connector 91 may be detachably coupled to the chamber inlet 7121 of the sump 70. The first connector outlet 912 may be connected to the chamber inlet 7121 of the sump 70. Water introduced into the connector inlet 911 may flow into the distribution chamber 712 through the first connector outlet 912. For example, the first connector outlet 912 may extend in a direction of substantially intersecting the connector inlet 911. The first connector outlet 912 may be referred to as the outlet 912.

[0119] The connector 91 may include a second connector outlet 913. The second connector outlet 913 of the connector 91 may be detachably coupled to the connection pipe 92, which will be described in greater detail below. The second connector outlet 913 of the connector 91 may be connected to the connection pipe 92. Water introduced into the connector inlet 911 may flow into the connection pipe 92 through the second connector outlet 913. For example, the second connector outlet 913 may be branched between the connector inlet 911 and the first connector outlet 912. The second connector outlet 913 may be referred to as the outlet 913.

[0120] The dishwasher 1 may include the connection pipe 92. The connection pipe 92 may receive water flowing out from the connector 91. Water pumped to the circulation pump 61 through the connector 91 may pass through the connector 91 and flow into the connection pipe 92. The connection pipe 92 may connect the connector 91 and a first guide pipe 93, which will be described in greater detail below. The connection pipe 92 may guide water flowing out from the connector 91 to the first guide pipe 93. The connection pipe 92 may connect the connector 91 and a second guide pipe 96, which will be described in greater detail below. The connection pipe 92 may guide water flowing out from the connector 91 to the second guide pipe 96.

[0121] For example, the connection pipe 92 may include a first connection part 921, a second connection part 922, a third connection part 923, a fourth connection part 924, and a fifth connection part 925.

[0122] The first connection part 921 may be detachably coupled to the second connector outlet 913 of the connector 91. The first connection part 921 may be connected to the second connector outlet 913 of the connector 91. The first connection part 921 may receive water from the connector 91.

[0123] A first flow path valve 94, which will be described in greater detail below, may be detachably coupled to the second connection part 922. The second connection part 922 may communicate with the first connection part 921. The second connection part 922 may communicate with the third connection part 923.

[0124] The third connection part 923 may extend from the second connection part 922. The third connection part 923 may extend downward from the second connection part 922. The third connection part 923 may be connected to the first guide pipe 93.

[0125] Water introduced into the first connection part 921 may pass through the second connection part 922 and the third connection part 923 and flow into the first guide pipe 93.

[0126] A second flow path valve 97, which will be described in greater detail below, may be detachably coupled to the fourth connection part 924. The fourth connection part 924 may communicate with the first connection part 921. The fourth connection part 924 may communicate with the fifth connection part 925.

[0127] The fifth connection part 925 may extend from the fourth connection part 924. The fifth connection part 925 may extend downward from the fourth connection part 924. The fifth connection part 925 may be connected to the second guide pipe 96.

[0128] Water introduced into the first connection part 921 may pass through the fourth connection part 924 and the fifth connection part 925 and flow into the second guide pipe 96.

[0129] For example, the connection pipe 92 may include a fixing part 926. The fixing part 926 may be fixed to the sump 70. The fixing part 926 may be fixed to the sump housing 71.

[0130] The dishwasher 1 may include the first guide pipe 93. The first guide pipe 93 may guide water pumped by the circulation pump 61 to the water storage chamber 711. The first guide pipe 93 may supply water pumped by the circulation pump 61 to a first cleaning nozzle 95, which will be described in greater detail below. The first guide pipe 93 may be provided to connect the connection pipe 92 and the first cleaning nozzle 95. For example, a first end 931 of the first guide pipe 93 may be detachably coupled to the third connection part 923 of the connection pipe 92. For example, a second end 932 of the first guide pipe 93 may be detachably coupled to the first cleaning nozzle 95.

[0131] The dishwasher 1 may include the first flow path valve 94. The first flow path valve 94 may be configured to open or close the first flow path 991 for guiding water pumped by the circulation pump 61 to the water storage chamber 711. The first flow path 991 may include a flow path extending from the circulation pump 61 to the water storage chamber 711. The first flow path 991 may include a flow path extending from the pump outlet 612 of the circulation pump 61 to the first cleaning nozzle 95. For example, the first flow path 991 may include at least one of a flow path formed between the connector inlet 911 and the second connector outlet 913, a flow path formed between the first connection part 921 and the second connection part 922, a flow path formed between the second connection part 922 and the third connection part 923, and a flow path formed by the first guide pipe 93.

[0132] At least a portion of the first flow path valve 94 may be disposed in the first flow path 991. Although the drawings illustrate that the first flow path valve 94 is mounted on the second connection part 922 of the connection pipe 92, the present disclosure is not limited thereto. It is sufficient for the first flow path valve 94 to be disposed to open and close the first flow path 991 described above.

[0133] Opening the first flow path 991 may refer to not only completely opening the first flow path 991, but also opening at least a portion of the first flow path 991 to allow water to flow through the first flow path 991. Closing the first flow path 991 may refer to not only completely closing the first flow path 991, but also covering at least a portion of the first flow path 991 to prevent/reduce water from flowing through the first flow path 991 or to reduce the flow rate of water flowing through the first flow path 991.

[0134] The dishwasher 1 may include the first cleaning nozzle 95. The first cleaning nozzle 95 may be configured to communicate with the water storage chamber 711. The first cleaning nozzle 95 may be configured to inject water guided through the first flow path 991 toward the first filter 310. For example, the first cleaning nozzle 95 may inject water relatively toward a lower portion of the first filter 310. For example, water injected through the first cleaning nozzle 95 may have a water pressure higher than a predetermined level.

[0135] The first cleaning nozzle 95 may be configured to inject water toward an outer surface of the first filter 310. The outer surface of the first filter 310 is a surface opposite to an inner surface of the first filter 310 in which foreign substances are captured. Water injected from the first cleaning nozzle 95 may flow from the outside of the first filter 310 to the inside of the first filter 310. As water injected from the first cleaning nozzle 95 passes through the first filter 310, the foreign substances adhered to the first filter 310 may be separated from the first filter 310. For example, as the first cleaning nozzle 95 injects water toward a side opposite to the side of the first filter 310 in which foreign substances are collected, the foreign substances may be easily removed from the first filter 310. Accordingly, cleaning efficiency of the first filter 310 may be increased.

[0136] The first cleaning nozzle 95 may include a first injection port 951. For example, the first injection port 951 may include a slit shape. For example, the injection port 951 may include a slit shape of extending along a substantially vertical direction (Z direction). For example, the first injection port 951 may be referred to as the first slit 951.

[0137] The first cleaning nozzle 95 may be detachably coupled to the sump 70. The first cleaning nozzle 95 may be mounted in the first nozzle mounting portion 716 formed on the sump housing 71. For example, the first nozzle mounting portion 716 may include a first sump opening 7161 open toward the water storage chamber 711 and a first coupling portion 7162 provided around the first sump opening 7161. For example, the first cleaning nozzle 95 may include a shape corresponding to the first sump opening 7161. For example, the first cleaning nozzle 95 may include a second coupling portion 952 capable of being coupled to the first coupling portion 7162. For example, the first coupling portion 7162 and the second coupling portion 952 each include a coupling hole, and a screw may be fastened to the coupling hole of the first coupling portion 7162 and the coupling hole of the second coupling portion 952. However, the present disclosure is not limited to the example described above, and the first cleaning nozzle 95 may be coupled to the sump 70 using various known coupling methods.

[0138] A surface of the first cleaning nozzle 95 facing the water storage chamber 711 may be provided to be connected to an inner surface of the sump housing 71 while the first cleaning nozzle 95 is coupled to the sump 70. The surface of the first cleaning nozzle 95 facing the water storage chamber 711 may not protrude or be recessed from the inner surface of the sump housing 71 within a predetermined error range.

[0139] The dishwasher 1 may include the second guide pipe 96. The second guide pipe 96 may be divided from the first guide pipe 93. The second guide pipe 96 may guide the water pumped by the circulation pump 61 to the water storage chamber 711. The second guide pipe 96 may supply water pumped by the circulation pump 61 to a second cleaning nozzle 98, which will be described in greater detail below. The second guide pipe 96 may be provided to connect the connection pipe 92 and the second cleaning nozzle 98. For example, a first end 961 of the second guide pipe 96 may be detachably coupled to the fifth connection part 925 of the connection pipe 92. For example, a second end 962 of the second guide pipe 96 may be detachably coupled to the second cleaning nozzle 98.

[0140] The dishwasher 1 may include the second flow path valve 97. The second flow path valve 97 may be configured to open or close the second flow path 992 for guiding water pumped by the circulation pump 61 to the water storage chamber 711. The second flow path 992 may be divided from the first flow path 991. The second flow path 992 may include a flow path extending from the circulation pump 61 to the water storage chamber 711. The second flow path 992 may include a flow path extending from the pump outlet 612 of the circulation pump 61 to the second cleaning nozzle 98. For example, the second flow path 992 may include at least one of a flow path formed between the connector inlet 911 and the second connector outlet 913, a flow path formed between the first connection part 921 and the fourth connection part 924, a flow path formed between the fourth connection part 924 and the fifth connection part 925, and a flow path formed by the second guide pipe 96.

[0141] At least a portion of the second flow path valve 97 may be disposed in the second flow path 992. Although the drawings illustrate that the second flow path valve 97 is mounted on the fourth connection part 924 of the connection pipe 92, the present disclosure is not limited thereto. It is sufficient for the second flow path valve 97 to be disposed to open and close the second flow path 992 described above.

[0142] Opening the second flow path 992 may refer to not only completely opening the second flow path 992, but also opening at least a portion of the second flow path 992 to allow water to flow through the second flow path 992. Closing the second flow path 992 may refer to not only completely closing the second flow path 992, but also covering at least a portion of the second flow path 992 to prevent/reduce water from flowing through the second flow path 992 or to reduce the flow rate of water flowing through the second flow path 992.

[0143] The dishwasher 1 may include the second cleaning nozzle 98. The second cleaning nozzle 98 may be configured to communicate with the water storage chamber 711. The second cleaning nozzle 98 may be configured to inject water guided through the second flow path 992 toward the first filter 310. For example, the second cleaning nozzle 98 may inject water relatively toward an upper portion of the first filter 310. For example, water injected through the second cleaning nozzle 98 may have a water pressure higher than a predetermined level.

[0144] The second cleaning nozzle 98 may be configured to inject water toward the outer surface of the first filter 310. Water injected from the second cleaning nozzle 98 may flow from the outside of the first filter 310 to the inside of the first filter 310. As water injected from the second cleaning nozzle 98 passes through the first filter 310, the foreign substances adhered to the first filter 310 may be separated from the first filter 310. For example, as the second cleaning nozzle 98 injects water toward a side opposite to the side of the first filter 310 in which foreign substances are collected, the foreign substances may be easily removed from the first filter 310. Accordingly, cleaning efficiency of the first filter 310 may be increased.

[0145] The second cleaning nozzle 98 may include a second injection port 981. For example, the second injection port 981 may include a slit shape. For example, the injection port 981 may include a slit shape of extending along the substantially vertical direction (Z direction). For example, the second injection port 981 may be referred to as the second slit 981.

[0146] The second cleaning nozzle 98 may be detachably coupled to the sump 70. The second cleaning nozzle 98 may be mounted in a second nozzle mounting portion 717 formed on the sump housing 71. For example, the second nozzle mounting portion 717 may include a second sump opening 7171 open toward the water storage chamber 711 and a third coupling portion 7172 provided around the second sump opening 7171. For example, the second cleaning nozzle 98 may include a shape corresponding to the second sump opening 7171. For example, the second cleaning nozzle 98 may include a fourth coupling portion 982 capable of being coupled to the third coupling portion 7172. For example, the third coupling portion 7172 and the fourth coupling portion 982 each include a coupling hole, and a screw may be fastened to the coupling hole of the third coupling portion 7172 and the coupling hole of the fourth coupling portion 982. However, the present disclosure is not limited to the example described above, and the second cleaning nozzle 98 may be coupled to the sump 70 using various known coupling methods.

[0147] A surface of the second cleaning nozzle 98 facing the water storage chamber 711 may be provided to be connected to the inner surface of the sump housing 71 while the second cleaning nozzle 98 is coupled to the sump 70. The surface of the second cleaning nozzle 98 facing the water storage chamber 711 may not protrude or be recessed from the inner surface of the sump housing 71 within a predetermined error range.

[0148] Although the drawings illustrate that the connector 91, the connection pipe 92, the first guide pipe 93 and the second guide pipe 96 are configured separately, the present disclosure is not limited thereto. As an example, at least some of the connector 91, the connection pipe 92, the first guide pipe 93 and the second guide pipe 96 may be formed integrally. As an example, a portion of the connection pipe 92 and the first guide pipe 93 may be formed integrally. As an example, a portion of the connection pipe 92 and the second guide pipe 96 may be formed integrally. As an example, the connection pipe 92, the first guide pipe 93, and the second guide pipe 96 may be formed integrally. As an example, the connector 91, the connection pipe 92, the first guide pipe 93 and the second guide pipe 96 may be formed integrally to be provided as a single configuration. As long as at least one flow path connected from the circulation pump 61 to the water storage chamber 711 may be formed, the present disclosure may include various combinations of connectors, hoses, pipes, etc. FIG. 14 is a perspective view illustrating a filter cleaning structure of the dishwasher according to various embodiments. FIG. 15 is a perspective view illustrating the filter cleaning structure of the dishwasher illustrated in FIG. 14 viewed from another direction according to various embodiments.

[0149] Referring to FIGS. 14 and 15, the first cleaning nozzle 95 and the second cleaning nozzle 98 may be spaced apart from each other. For example, the first cleaning nozzle 95 and the second cleaning nozzle 98 may be disposed to be spaced apart from each other along a circumferential direction of the first filter 310. The first cleaning nozzle 95 and the second cleaning nozzle 98 may be disposed so as not to interfere with each other.

[0150] The first cleaning nozzle 95 may be provided to inject water toward a first region of the first filter 310. The second cleaning nozzle 98 may be provided to inject water toward a second region of the first filter 310 different from the first region of the first filter 310.

[0151] For example, the first cleaning nozzle 95 may be provided to relatively clean the lower portion of the first filter 310, and the second cleaning nozzle 98 may be provided to relatively clean the upper portion of the first filter 310. For example, the second injection port 981 of the second cleaning nozzle 98 may be disposed above at least a portion of the first injection port 951 of the first cleaning nozzle 95. For example, a lower end of the second injection port 981 may be disposed above a lower end of the first injection port 951. For example, an upper end of the second injection port 981 may be disposed above an upper end of the first injection port 951. For example, the lower end of the second injection port 981 may be disposed below the upper end of the first injection port 951, above the upper end of the first injection port 951, or at the substantially same height as the upper end of the first injection port 951. However, this is merely an example, and the first cleaning nozzle 95 and the second cleaning nozzle 98 may each inject water in various directions in order to clean the first filter 310.

[0152] For example, the first injection port 951 of the first cleaning nozzle 95 and the second injection port 981 of the second cleaning nozzle 98 may each be disposed to face a substantially center of the first filter 310. For example, the first injection port 951 of the first cleaning nozzle 95 and the second injection port 981 of the second cleaning nozzle 98 may be disposed to face a rotation axis of the first filter 310.

[0153] For example, the first injection port 951 of the first cleaning nozzle 95 may include a shape of extending in the substantially vertical direction (Z direction). For example, the second injection port 981 of the second cleaning nozzle 98 may include a shape of extending in the substantially vertical direction (Z direction). However, the present disclosure is not limited to the examples described above. For example, the first injection port 951 may include a shape of extending along the substantially circumferential direction of the first filter 310. For example, the second injection port 981 may include a shape of extending along the substantially circumferential direction of the first filter 310. For example, an extension length of the first injection port 951 and an extension length of the second injection port 981 may be the same or different. For example, at least one of the first injection port 951 and the second injection port 981 may include various shapes such as a straight line, a curve, a circle, a polygon, etc.

[0154] For example, the first cleaning nozzle 95 may include the single first injection port 951 or may include a plurality of the first injection ports 951. For example, the plurality of first injection ports 951 may be configured as a plurality of holes. In a case where the first cleaning nozzle 95 includes the plurality of first injection ports 951, shapes of the plurality of first injection ports 951 may be formed to be all the same or different. In the case where the first cleaning nozzle 95 includes the plurality of first injection ports 951, the shapes of some of the plurality of first injection ports 951 may be formed to be different from the shapes of some of the others.

[0155] For example, the second cleaning nozzle 98 may include the single second injection port 981 or may include a plurality of the second injection ports 981. For example, the plurality of second injection ports 981 may be configured as a plurality of holes. In a case where the second cleaning nozzle 98 includes the plurality of second injection ports 981, shapes of the plurality of second injection ports 981 may be formed to be all the same or different. In the case where the second cleaning nozzle 98 includes the plurality of second injection ports 981, the shapes of some of the plurality of second injection ports 981 may be formed to be different from the shapes of some of the others.

[0156] The drawings illustrate an example in which the dishwasher 1 includes the first cleaning nozzle 95 and the second cleaning nozzle 98, but the present disclosure is not limited thereto. The dishwasher 1 may include a single cleaning nozzle or may include three or more cleaning nozzles.

[0157] For example, the dishwasher 1 may include only one of the first cleaning nozzle 95 and the second cleaning nozzle 98. In a case where the dishwasher 1 includes only the first cleaning nozzle 95, the second cleaning nozzle 98 and components associated with the nozzle (e.g., the second guide pipe 96, the second flow path valve 97, the second flow path 992) may be omitted. In a case where the dishwasher 1 includes only the second cleaning nozzle 98, the first cleaning nozzle 95 and components associated with the nozzle (e.g., the first guide pipe 93, the first flow path valve 94, the first flow path 991) may be omitted.

[0158] For example, the dishwasher 1 may further include at least one additional cleaning nozzle (not shown) in addition to the first cleaning nozzle 95 and the second cleaning nozzle 98. For example, the dishwasher 1 may further include an additional flow path for guiding water pumped by the circulation pump 61 to the additional cleaning nozzle and an additional flow path valve for opening or closing the additional flow path. The additional flow path may be separated from the first flow path 991 and the second flow path 992, or may be branched from at least one of the first flow path 991 and the second flow path 992. The additional cleaning nozzle may be disposed not to interfere with the first cleaning nozzle 95 and the second cleaning nozzle 98. The additional cleaning nozzle may inject water toward an upper, lower, or middle region of the first filter 310, as needed. For example, the first cleaning nozzle 95 and the additional cleaning nozzle may inject water toward the lower portion of the first filter 310, and the second cleaning nozzle 98 may inject water toward the upper portion of the first filter 310. For example, the first cleaning nozzle 95 may inject water toward the lower portion of the first filter 310, and the second cleaning nozzle 98 and the additional cleaning nozzle may inject water toward the upper portion of the first filter 310.

[0159] An example in which water stored in the water storage chamber 711 of the sump 70 flows to the distribution chamber 712 will be described in greater detail below with reference to FIGS. 7 to 15.

[0160] The first flow path valve 94 may close the first flow path 991. The second flow path valve 97 may close the second flow path 992. The distribution valve 72 may open the third flow path 712f. Accordingly, water pumped by the circulation pump 61 may flow to the third flow path 712f opened. The water pumped by circulation pump 61 may pass through connector 91 to flow into distribution chamber 712. The water pumped by the circulation pump 61 may pass through the connector inlet 911 and the second connector outlet 912 to flow into the distribution chamber 712 through the chamber inlet 7121. Water in the distribution chamber 712 may pass through the distribution cover 73 to be provided to the injection device 40. The injection device 40 may inject water provided from the sump 70 into the tub 12. Through the above-described process, a washing process or rinsing process of the dishwasher 1 may be performed. The washing process may include an operation of injecting water into the tub 12 to wash the objects to be washed (e.g., dishes). For example, the water used in the washing process may be water mixed with detergent and/or rinse. The rinsing process may include an operation of injecting water to rinse the objects to be washed (e.g., dishes), that have been washed. For example, the water used in the rinsing process may be water in which the detergent and/or rinse is not mixed.

[0161] An example in which water stored in the water storage chamber 711 of the sump 70 is supplied back to the water storage chamber 711 through the first cleaning nozzle 95 will be described below with reference to FIGS. 7 to 15. For example, an example in which water received in the water storage chamber 711 of the sump 70 is circulated will be described.

[0162] The first flow path valve 94 may open the first flow path 991. The second flow path valve 97 may close the second flow path 992. The distribution valve 72 may close the third flow path 712f. Accordingly, water pumped by the circulation pump 61 may flow to the first flow path 991 opened. The water pumped by the circulation pump 61 may pass through the connector 91 and the connection pipe 92 to flow to the first guide pipe 93. The water guided by the first guide pipe 93 may be injected toward the first filter 310 through the first cleaning nozzle 95. The first cleaning nozzle 95 may inject water toward the lower portion of the first filter 310. Through the above-described process, cleaning of the upper portion of the first filter 310 may be performed. For example, the cleaning of the lower portion of the first filter 310 may be performed before water in the water storage chamber 711 is drained. The first cleaning nozzle 95 may also be configured to clean another region besides the lower portion of the first filter 310. Depending on the position and/or shape of the first injection port 951, the region that may be cleaned by the first cleaning nozzle 95 may vary.

[0163] An example in which water stored in the water storage chamber 711 of the sump 70 is supplied back to the water storage chamber 711 through the second cleaning nozzle 98 will be described below with reference to FIGS. 7 to 15. An example in which water received in the water storage chamber 711 of the sump 70 is circulated will be described.

[0164] The first flow path valve 94 may close the first flow path 991. The second flow path valve 97 may open the second flow path 992. The distribution valve 72 may close the third flow path 712f. Accordingly, water pumped by the circulation pump 61 may flow to the second flow path 992 opened. The water pumped by the circulation pump 61 may pass through the connector 91 and the connection pipe 92 to flow to the second guide pipe 96. The water guided by the second guide pipe 96 may be injected toward the first filter 310 through the second cleaning nozzle 98. The second cleaning nozzle 98 may inject water toward the upper portion of the first filter 310. Through the above-described process, cleaning of the upper portion of the first filter 310 may be performed. For example, the cleaning of the upper portion of the first filter 310 may be performed before water in the water storage chamber 711 is drained. The second cleaning nozzle 98 may also be configured to clean another region besides the upper portion of the first filter 310. Depending on the position and/or shape of the second injection port 981, the region that may be cleaned by the second cleaning nozzle 98 may vary.

[0165] The present disclosure is not limited to the examples described above, the first flow path valve 94 may open the first flow path 991, the second flow path valve 97 may open the second flow path 992, and the distribution valve 72 may close the third flow path 712f. Accordingly, the water pumped by the circulation pump 61 may flow to the first flow path 991 and the second flow path 992. The first cleaning nozzle 95 and the second cleaning nozzle 98 may inject water toward the first filter 310.

[0166] In this disclosure, a filter cleaning operation of the dishwasher 1 may include injecting water toward the first filter 310 disposed inside the water storage chamber 711. The first cleaning nozzle 95 and/or the second cleaning nozzle 98 may inject water toward the first filter 310. Foreign substances adhered to the first filter 310 may be separated from the first filter 310 by water injected from the first cleaning nozzle 95 and/or the second cleaning nozzle 98. For example, the filter cleaning operation of the dishwasher 1 may include cleaning the lower portion of the first filter 310, cleaning the upper portion of the first filter 310, or cleaning the upper/lower portions of the first filter 310. For example, the filter cleaning operation may include sequentially performing cleaning of the upper portion of the first filter 310 after cleaning of the lower portion of the first filter 310. For example, the filter cleaning operation may include sequentially performing cleaning of the lower portion of the first filter 310 after cleaning of the upper portion of the first filter 310. For example, the filter cleaning operation may include simultaneously performing cleaning of the lower portion of the first filter 310 and cleaning of the upper portion of the first filter 310.

[0167] Although the example in which water pumped by the circulation pump 61 is circulated to the water storage chamber 711 has been described above, the present disclosure is not limited thereto. For example, water pumped by the drainage pump 62 may be provided to the water storage chamber 711 without being discharged to the outside. In this case, the first flow path 991 may be provided to guide water pumped by the drainage pump 62 to the water storage chamber 711, and the second flow path 992 may be provided to guide water pumped by the drainage pump 62 to the water storage chamber 711. The connection pipe 92 may be disposed adjacent to the drainage pump 62 to receive water pumped by the drainage pump 62. For example, the connection pipe 92 may communicate with the drainage pump coupling portion 714 of the sump housing 71. The first cleaning nozzle 95 and the second cleaning nozzle 98 may each be provided to inject water pumped by the drainage pump 62 into the water storage chamber 711.

[0168] FIG. 16 is a perspective view illustrating a filter assembly according to various embodiments. FIG. 17 is a perspective view illustrating the filter assembly illustrated in FIG. 16 viewed from another direction according to various embodiments.

[0169] Referring to FIGS. 16 and 17, the filter assembly 30 may include the first filter 310 and components for rotating the first filter 310. The filter assembly 30 may further include at least one additional filter. For example, the filter assembly 30 may further include the second filter 320. For example, the filter assembly 30 may further include the third filter 330.

[0170] FIG. 18 is an exploded perspective view of the filter assembly according to various embodiments. FIG. 19 is a diagram illustrating filters according to various embodiments. FIG. 20 is a perspective view illustrating a filter shaft according to various embodiments. FIG. 21 is a diagram illustrating one side of the filter shaft illustrated in FIG. 20 according to various embodiments. FIG. 22 is a diagram illustrating another side of the filter shaft illustrated in FIG. 20 according to various embodiments. FIG. 23 is a partial sectional perspective view of the filter shaft illustrated in FIG. 20 according to various embodiments. FIG. 24 is a perspective view illustrating a rotating frame according to various embodiments. FIG. 25 is a partial sectional perspective view illustrating the rotating frame illustrated in FIG. 24 according to various embodiments. FIG. 26 is a perspective view illustrating a shaft fixer according to various embodiments. FIG. 27 is a perspective view illustrating an elastic member according to various embodiments. FIG. 28 is a partial sectional perspective view of the elastic member illustrated in FIG. 27 according to various embodiments. FIG. 29 is a cross-sectional view of the elastic member illustrated in FIG. 27 according to various embodiments.

[0171] The filter assembly 30 may include the first filter 310. The first filter 310 may be disposed inside the water storage chamber 711. The first filter 310 may be separated from the water storage chamber 711. The first filter 310 is detachably mountable to the sump housing 71.

[0172] The first filter 310 may be configured to filter water introduced into the water storage chamber 711. The first filter 310 may be configured to filter water flowing in the water storage chamber 711. The first filter 310 may be configured to filter water passed through the second filter 320 and/or the third filter 330, which will be described in greater detail below. For example, the first filter 310 may be configured to filter out foreign substances of a relatively small size compared to the second filter 320 and the third filter 330. For example, the first filter 310 may be configured to filter out foreign substances having a size smaller than that of foreign substances filtered out by the second filter 320 and the third filter 330. For example, the first filter 310 may include a micro filter. However, the present disclosure is not limited to the example described above, it is sufficient as long as the first filter 310 may filter out foreign substances contained in water, and there is no limitation on the size of the foreign substances filtered out by the first filter 310.

[0173] The water introduced into the water storage chamber 711 may flow from the inside of the first filter 310 to the outside of the first filter 310. As water passes through the first filter 310, foreign substances contained in the water may be captured by the first filter 310. The foreign substances contained in the water may be captured on the inner surface of the first filter 310. The foreign substances contained in the water may be adhered to the inner surface of the first filter 310. The foreign substances filtered out by the first filter 310 may be accumulated inside the first filter 310. The water passed through the first filter 310 may be water from which foreign substances have been removed. The water passed through the first filter 310 may be injected into the tub 12 or circulated to the water storage chamber 711.

[0174] The first filter 310 may be provided to surround the second filter 320. The first filter 310 may be provided to cover at least a portion of an outer surface of the second filter 320. For example, the first filter 310 may include a substantially hollow cylindrical shape.

[0175] For example, the first filter 310 may include a filter frame 311 and a filtering part 312 supported by the filter frame 311. The filter frame 311 may include an upper frame part 311a, a lower frame part 311b, and a side frame part 311c connecting the upper frame part 311a and the lower frame part 311b. The upper frame part 311a and the lower frame part 311b may each include a substantially ring shape. The side frame part 311c may include a shape of extending along the substantially vertical direction (Z direction). The filtering part 312 may be provided to fill an empty portion of the filter frame 311. Foreign substances filtered out by the first filter 310 may be adhered to the filtering part 312. The filtering part 312 may be referred to as the capturing part 312.

[0176] The first filter 310 may be configured to be rotatable within the water storage chamber 711. The first filter 310 may be rotated by a filter motor 350, which will be described in greater detail below.

[0177] The filter assembly 30 may include the second filter 320. At least a portion of the second filter 320 may be disposed inside the water storage chamber 711. At least a portion of the second filter 320 may be surrounded by the first filter 310. While at least a portion of the second filter 320 is disposed inside the water storage chamber 711, another portion of the second filter 320 may be disposed inside the tub 12 (see FIG. 3). The second filter 320 is detachably mountable to the sump housing 71.

[0178] The second filter 320 may be configured to filter out foreign substances contained in water flowing from the tub 12 toward the sump 70. The second filter 320 may be configured to filter out foreign substances of a relatively large size compared to the first filter 310. For example, the second filter 320 may be configured to filter out foreign substances having a size larger than that of foreign substances filtered out by the first filter 310. For example, the second filter 320 may include a coarse filter. However, the present disclosure is not limited to the example described above, it is sufficient as long as the second filter 320 may filter out foreign substances contained in water, and there is no limitation on the size of the foreign substances filtered out by the second filter 320.

[0179] For example, the second filter 320 may include a filter body 321. At least a portion of the filter body 321 may be disposed inside the first filter 310. The filter body 321 is insertable into a filter hole 332 of the third filter 330, which will be described in greater detail below.

[0180] For example, the second filter 320 may include a hollow portion 322. The hollow portion 322 may be formed inside the filter body 321. The hollow portion 322 may include a hollow hole 322a. A filter shaft 370, which will be described in greater detail below, is insertable into the hollow portion 322. The hollow portion 322 may extend along an extension direction of the filter shaft 370. The hollow portion 322 may have a shape of extending along the substantially vertical direction (Z direction).

[0181] For example, the second filter 320 may include a flange part 323. The flange part 323 may protrude from an outer surface of the filter body 321. The flange part 323 may extend along a circumferential direction of the filter body 321. The flange part 323 may be provided to press an elastic member 3100, which will be described in greater detail below.

[0182] For example, the second filter 320 may include a fixing rib 324 (see FIG. 19). The fixing rib 324 may correspond to a rib groove 333 of the third filter 330, which will be described in greater detail below. The fixing rib 324 may be accommodated in the rib groove 333. The fixing rib 324 may be coupled to the rib groove 333. Accordingly, while the first filter 310 rotates, the second filter 320 may not rotate by being fixed to the third filter 330.

[0183] The filter assembly 30 may include the third filter 330. The third filter 330 is detachably mountable to the tub 12. For example, the third filter 330 may be placed on the bottom 12b of the tub 12 (see FIG. 3). The third filter 330 may be disposed on the first filter 310.

[0184] The third filter 330 may be configured to filter out foreign substances contained in water flowing from the tub 12 toward the sump 70. The third filter 330 may be configured to filter out foreign substances of a relatively large size compared to the first filter 310. The third filter 330 may be configured to filter out foreign substances of a relatively small size compared to the second filter 320. For example, the third filter 330 may be configured to filter out foreign substances having a size larger than that of foreign substances filtered out by the first filter 310. For example, the third filter 330 may be configured to filter out foreign substances having a size smaller than that of foreign substances filtered out by the second filter 320. For example, the third filter 330 may include a fine filter. However, the present disclosure is not limited to the example described above, it is sufficient as long as the third filter 330 may filter out foreign substances contained in water, and there is no limitation on the size of the foreign substances filtered out by the third filter 330.

[0185] For example, the third filter 330 may include a filter body 331. The filter body 331 may include a substantially plate shape. The filter body 331 may include a material and/or shape for filtering out foreign substances contained in water. The one side 331a of the filter body 331 may be placed by the seating portion 83 of the support plate 80. The one side 331a of the filter body 331 may be seated on the seating portion 83 of the support plate 80.

[0186] For example, the third filter 330 may include the filter hole 332. The filter hole 332 may be formed by penetrating the filter body 331. The second filter 320 may be inserted into the filter hole 332. For example, a size of the filter hole 332 may be smaller than a size of the flange part 323 of the second filter 320.

[0187] For example, the third filter 330 may include the rib groove 333 (see FIG. 19). The rib groove 333 may correspond to the fixing rib 324 of the second filter 320. The rib groove 333 may accommodate the fixing rib 324. The rib groove 333 may be coupled with the fixing rib 324. For example, the rib groove 333 may be formed by cutting out from the filter hole 332. Accordingly, while the first filter 310 rotates, the second filter 320 may not rotate by being fixed to the third filter 330.

[0188] As described above, the first filter 310, the second filter 320, and the third filter 330 are not limited by the ordinal numbers first, second, and third. For example, the first filter 310, the second filter 320, and the third filter 330 may be referred to as the filter 310, the filter 320, and the filter 330, respectively. For example, the first filter 310 may be referred to as the second filter 310, and the second filter 320 may be referred to as the first filter 320.

[0189] The filter assembly 30 may include a filter cover 340. The filter cover 340 may be provided to cover a portion of at least one of the filter 310, 320, and/or 330. Accordingly, relatively large lumps of foreign substances may be prevented/blocked from being introduced into the water storage chamber 711. The filter cover 340 may be detachably mounted on the inside of the second filter 320. The filter cover 340 may be provided to cover a portion of the inside of the second filter 320.

[0190] The filter assembly 30 may include the filter motor 350. The filter motor 350 may be configured to rotate the first filter 310. The filter motor 350 may generate a rotational force to rotate the first filter 310. The filter motor 350 may include a motor shaft 351. The motor shaft 351 may be the substantially same as the rotation axis of the first filter 310.

[0191] The filter motor 350 may be disposed outside the water storage chamber 711. The filter motor 350 may be disposed outside the sump housing 71. The filter motor 350 may be disposed below the sump housing 71. The motor shaft 351 of the filter motor 350 may be arranged to face the water storage chamber 711.

[0192] The filter assembly 30 may include a motor cover 360. The motor cover 360 may be provided to cover the filter motor 350. The motor cover 360 may be provided to prevent and/or reduce water from leaking into the filter motor 350. The motor cover 360 may be provided to prevent/reduce water flowing out of the water storage chamber 711 from being introduced into the filter motor 350. At least a portion of the motor cover 360 may be disposed between the filter motor 350 and the water storage chamber 711.

[0193] For example, the motor cover 360 may include a cover panel 361. The cover panel 361 may have a shape corresponding to the filter motor 350. The cover panel 361 may be provided to cover the surroundings of the motor shaft 351 of the filter motor 350. The cover panel 361 may include a tray shape.

[0194] For example, the motor cover 360 may include a first cover hole 362. The first cover hole 362 may be provided such that the motor shaft 351 of the filter motor 350 passes therethrough. The motor shaft 351 passed through the first cover hole 362 may be coupled to the filter shaft 370, which will be described in greater detail below.

[0195] For example, the motor cover 360 may include a second cover hole 363. The second cover hole 363 may be provided to drain water flowing out from the water storage chamber 711. Water passing through the second cover hole 363 may fall down without being introduced into the filter motor 350. The cover panel 361 may include a shape of being inclined downward toward the second cover hole 363. Water fallen on the cover panel 361 may flow along the inclination toward the second cover hole 363. The second cover hole 363 may be referred to as the drain hole 363.

[0196] The filter assembly 30 may include the filter shaft 370. The filter shaft 370 may transmit the rotational force generated by the filter motor 350 to the first filter 310. The filter shaft 370 may be provided to be rotated by the filter motor 350. The filter shaft 370 may be provided to rotate together with the filter motor 350. One end of the filter shaft 370 may be coupled to the motor shaft 351 of the filter motor 350. The filter shaft 370 may be disposed on the same line as the motor shaft 351. The filter shaft 370 may form the rotation axis of the first filter 310. The filter shaft 370 is couplable to a rotating frame 380, which will be described in greater detail below. The filter shaft 370 is insertable into the hollow portion 322 of the second filter 320. At least a portion of the filter shaft 370 may protrude toward the inside of the water storage chamber 711 by passing through a shaft hole 718 formed in the sump housing 71. At least a portion of the filter shaft 370 may be provided to be insertable into the rotating frame 380 and the second filter 320 by passing through the shaft hole 718 formed on the sump housing 71. The filter shaft 370 may be referred to as the shaft 370.

[0197] For example, the filter shaft 370 may include a shaft body 371. The shaft body 371 may extend in the substantially vertical direction (Z direction). The shaft body 371 is insertable into the hollow portion 322.

[0198] For example, the filter shaft 370 may include a motor coupling portion 372. The motor coupling portion 372 may be formed at a first end 371a of the shaft body 371. The motor coupling portion 372 is couplable with the motor shaft 351 of the filter motor 350. The motor shaft 351 of the filter motor 350 is insertable into the motor coupling portion 372. The motor coupling portion 372 may have a shape corresponding to the motor shaft 351 of the filter motor 350.

[0199] For example, the filter shaft 370 may include a first hook 373. The first hook 373 may protrude upward from a second end 371b of the shaft body 371. The first hook 373 may be provided to pass through the hollow portion 322 of the second filter 320 and be caught on an upper end 322b of the hollow portion 322 (see FIG. 33). The first hook 373 may include a first hook body 3731 extending from the second end 371b of the shaft body 371, and a first hook protrusion 3732 protruding from the first hook body 3731 to be supported by the upper end 322b of the hollow portion 322. The first hook protrusion 3732 may protrude in a direction of substantially intersecting an extension direction of the first hook body 3731.

[0200] For example, the filter shaft 370 may include a second hook 374. The second hook 374 may be spaced apart from the first hook 373. The second hook 374 may protrude upward from the second end 371b of the shaft body 371. The second hook 374 may be provided to pass through the hollow portion 322 of the second filter 320 and be caught on the upper portion 322b of the hollow portion 322 (see FIG. 33). The second hook 374 may include a second hook body 3741 extending from the second end 371b of the shaft body 371, and a second hook protrusion 3742 protruding from the second hook body 3741 to be supported by the upper end 322b of the hollow portion 322. The second hook protrusion 3742 may protrude in a direction of substantially intersecting an extension direction of the second hook body 3741. The second hook protrusion 3742 may protrude in a direction opposite to the protrusion direction of the first hook protrusion 3731.

[0201] For example, the first hook 373 and the second hook 374 may be provided to be symmetrical about an axis in the vertical direction.

[0202] For example, the first hook 373 and the second hook 374 are elastically deformable.

[0203] For example, the filter shaft 370 may include a shaft groove 375. The shaft groove 375 may be formed between the first hook 373 and the second hook 374. A shaft fixer 390, which will be described in greater detail below, may be inserted into the shaft groove 375.

[0204] For example, the filter shaft 370 may include a first protrusion 3711 protruding from an outer surface of the filter shaft 370. The first protrusion 3711 may protrude from the shaft body 371. The one or more first protrusions 3711 may be formed on the shaft body 371. FIG. 23 illustrates that the filter shaft 370 includes four of the first protrusions 3711, but there is no limitation on the number of the first protrusions 3711.

[0205] For example, the filter shaft 370 may include a first recess portion 3712 provided on the outer surface of the filter shaft 370 to be adjacent to the first protrusion 3711. The first recess portion 3712 may be a portion of the shaft body 371 on which the first protrusion 3711 is not formed. The first recess portion 3712 may be a portion relatively recessed compared to the first protrusion 3711. However, the present disclosure is not limited thereto, and it may also be interpreted that the first recess portion 3712 may be recessed from the outer surface of the filter shaft 370 and the first protrusion 3711 is a relatively protruding portion compared to the first recess 3712. FIG. 23 illustrates that the filter shaft 370 includes four of the first recess portions 3712, but there is no limitation on the number of the first recess portions 3712.

[0206] For example, both a plurality of the first protrusions 3711 and a plurality of the first recess portions 3712 may be provided, and the first protrusions 3711 and the first recess portions 3712 may be alternately arranged along the outer surface of the filter shaft 370.

[0207] The filter assembly 30 may include the rotating frame 380. The rotating frame 380 may be provided to connect the first filter 310 and the filter shaft 370. The rotating frame 380 may transmit a rotational force of the filter shaft 370 to the first filter 310. The rotating frame 380 may be provided to be rotated by the filter shaft 370. The rotating frame 380 may be provided to rotate together with the filter shaft 370 by being coupled to the filter shaft 370. The first filter 310 may be provided to rotate together with the rotating frame 380 by being coupled to the rotating frame 380. The first filter 310 may receive the rotational force of the filter motor 350 through the filter shaft 370 and the rotating frame 380.

[0208] For example, the rotating frame 380 may include a filter fixing part 381. The filter fixing part 381 may be provided to be mountable on the lower portion of the first filter 310. The filter fixing part 381 may be detachably coupled to the lower portion of the first filter 310. The filter fixing part 381 may include a fixing groove 3811. A portion of the filter frame 311 of the first filter 310 may be inserted into the fixing groove 3811. For example, the fixing groove 3811 of the filter fixing part 381 may be provided to fix the lower frame part 311b and the side frame part 311c of the first filter 310.

[0209] For example, the rotating frame 380 may include a shaft fixing part 382. The shaft fixing part 382 may be connected with the filter fixing part 381. The shaft fixing part 382 may be provided to be engaged with the outer surface of the filter shaft 370. The shaft fixing part 382 may be provided to be engaged with the shaft body 371 of the filter shaft 370.

[0210] For example, the shaft fixing part 382 may include a passing portion 3823 provided such that the filter shaft 370 passes therethrough. The passing portion 3823 may include a hollow shape.

[0211] For example, the shaft fixing part 382 may include a second protrusion 3821 protruding from an inner surface of the passing portion 3823. The second protrusion 3821 of the rotating frame 380 may be provided to correspond to the first recess portion 3712 of the filter shaft 370. FIG. 24 illustrates that the rotating frame 380 includes four of the second protrusions 3821, but there is no limitation on the number of the second protrusions 3821.

[0212] For example, the shaft fixing part 382 may include a second recess portion 3822 provided on the inner surface of the passing portion 3823 to be adjacent to the second protrusion 3821. The second recess portion 3822 of the rotating frame 380 may be provided to correspond to the first protrusion 3711 of the filter shaft 370. The second recess portion 3822 may be a portion of the passing portion 3823 on which the second protrusion 3821 is not formed. The second recess portion 3822 may be a portion relatively recessed compared to the second protrusion 3821. However, the present disclosure is not limited thereto, and it may also be interpreted that the second recess portion 3822 may be recessed from an outer surface of the passing portion 3823 and the second protrusion 3821 is a relatively protruding portion compared to the second recess portion 3822. FIG. 24 illustrates that the rotating frame 380 includes four of the second recess portions 3822, but there is no limitation on the number of the second recess portions 3822.

[0213] For example, both a plurality of the second protrusion 3821 and a plurality of the second recess portion 3822 may be provided, and the second protrusions 3821 and the second recess portions 3822 may be alternately arranged along the outer surface of the passing portion 3823.

[0214] The filter assembly 30 may include the shaft fixer 390. The shaft fixer 390 may be detachably coupled to the filter shaft 370. The shaft fixer 390 may be disposed between the first hook 373 and the second hook 374 of the filter shaft 370. The shaft fixer 390 may be provided to be couplable to the shaft groove 375 of the filter shaft 370. The shaft fixer 390 may be provided to be insertable into the shaft groove 375 of the filter shaft 370. As will be described in greater detail below, the shaft fixer 390 may prevent/inhibit the filter shaft 370 inserted into the hollow portion 322 of the second filter 320 from being separated from the hollow portion 322 of the second filter 320.

[0215] For example, the shaft fixer 390 may include a fixer body 391 and a hook groove 392 formed on the fixer body 391. The shaft fixer 390 may include the hook groove 392 having a shape corresponding to the shape of the filter shaft 370. The hook groove 392 may include a first hook groove portion 3921 corresponding to the first hook 373. The first hook 373 may be inserted into the first hook groove portion 3921. The hook groove 392 may include a second hook groove portion 3922 corresponding to the second hook 374. The second hook 374 may be inserted into the second hook groove portion 3922.

[0216] For example, the rotating frame 380 may include a connecting frame 383 for connecting the filter fixing part 381 and the shaft fixing part 382. The connecting frame 383 may include a radially extending shape.

[0217] The filter assembly 30 may include the elastic member 3100. For example, the elastic member 3100 may include an elastic material.

[0218] The elastic member 3100 may reduce friction between the first filter 310 and another component adjacent to the first filter 310. The elastic member 3100 may be provided to guide the rotation of the first filter 310.

[0219] The elastic member 3100 may be arranged to seal between the first filter 310 and another component adjacent to the first filter 310. The elastic member 3100 may be provided to eliminate a gap between the first filter 310 and another component adjacent to the first filter 310.

[0220] For example, the drawings illustrate that another component adjacent to the first filter 310 is the second filter 320 (see, e.g., FIGS. 30 and 34), but the present disclosure is not limited thereto. Depending on the components and/or arrangement of the components of the dishwasher 1, another component adjacent to the first filter 310 may be the bottom 12b of the tub 12 or the third filter 330. Another component adjacent to the first filter 310 may be a component other than the components described above.

[0221] The elastic member 3100 is mountable to the first filter 310. The elastic member 3100 is detachably couplable to the first filter 310. The elastic member 3100 is detachably couplable to the upper portion of the first filter 310. For example, the elastic member 3100 may include a substantially ring shape to correspond to the shape of the first filter 310. The elastic member 3100 may also be detachably coupled to another component adjacent to the first filter 310.

[0222] For example, the elastic member 3100 may include a first body part 3110. The first body part 3110 is mountable to the upper portion of the first filter 310. The first body part 3110 may include a first opening 3110a.

[0223] For example, the first body part 3110 of the elastic member 3100 may include an inner wall portion 3112, an outer wall portion 3113 spaced apart from the inner wall portion 3112, and a connecting wall portion 3114 connecting the inner wall portion 3112 and the outer wall portion 3113. The first body part 3110 may further include an extension wall portion 3115 extending from a lower end of the outer wall portion 3113 toward the inner wall portion 3112.

[0224] The inner wall portion 3112 may form the first opening 3110a. The inner wall portion 3112 may be provided to correspond to the inner surface of the first filter 310. The inner wall portion 3112 may be provided to face the inner surface of the first filter 310.

[0225] The outer wall portion 3113 may be provided to correspond to the outer surface of the first filter 310. The outer wall portion 3113 may be provided to face the outer surface of the first filter 310. The outer wall portion 3113 may extend downward from a second body part 3120, which will be described in greater detail below.

[0226] The connecting wall portion 3114 may be provided to correspond to the upper portion of the first filter 310. The connecting wall portion 3114 may be provided to face an upper surface of the first filter 310.

[0227] For example, the first body part 3110 of the elastic member 3100 may include an insertion groove 3111. The insertion groove 3111 may have a shape of being open downward so that the upper portion of the first filter 311 is insertable therein. For example, the upper frame part 311a of the first filter 310 may be inserted into the insertion groove 3111. The insertion groove 3111 may be formed by the inner wall portion 3112, the outer wall portion 3113, and the connecting wall portion 3114. The insertion groove 3111 may be defined by the inner wall portion 3112, the outer wall portion 3113, and the connecting wall portion 3114. The insertion groove 3111 may be surrounded by the inner wall portion 3112, the outer wall portion 3113, and the connecting wall portion 3114.

[0228] For example, the elastic member 3100 may include the second body part 3120. The second body part 3120 may extend upward from the first body part 3110. The second body part 3120 may include a second opening 3120a larger than the first opening 3110a. For example, the first opening 3110a and the second opening 3120a may include a circular shape, and a diameter D2 of the second opening 3120a may be larger than a diameter D1 of the first opening 3110a. As will be described in greater detail below, the elastic member 3100 includes a shape having the second opening 3120a larger than the first opening 3110a, so that a protruding rib 3130 of the elastic member 3100 may be easily pressed.

[0229] For example, the elastic member 3100 may include the protruding rib 3130. The protruding rib 3130 may extend upward from the second body part 3120. The protruding rib 3130 may extend slantly upward from the second body part 3120. The protruding rib 3130 may be provided to be bent in an inward direction of the second opening 3120a. The protruding rib 3130 may be provided to form a gap with the first body part 3110. For example, the gap formed between the first body part 3110 and the protruding rib 3130 may gradually increase in the inward direction of the second opening 3120a. Herein, the gap may refer to the shortest distance in the vertical direction (Z direction) between the first body part 3110 and the protruding rib 3130. For example, a second gap g2 may be larger than a first gap g1.

[0230] For example, the elastic member 3100 may include a space S. The space S may be formed by the first body part 3110, the second body part 3120, and the protruding rib 3130. The space S may be a space surrounded by the first body part 3110, the second body part 3120, and the protruding rib 3130. For example, the space S may be defined by the connecting wall portion 3114, the second body part 3120, and the protruding rib 3130. The space S may extend along a circumferential direction of the elastic member 3100. The space S may include the gap formed between the first body part 3110 and the protruding rib 3130. The space S may include the second opening 3120a. The space S may be referred to as the elastic groove S.

[0231] As the elastic member 3100 includes the space S, the protruding rib 3130 of the elastic member 3100 may be provided to be easily pressed by another component adjacent to the first filter 310. As the protruding rib 3130 is pressed downward, a size of the space S may vary. A detailed explanation of this will be given below.

[0232] The elastic member 3100 may be referred to as the rotational guide member 3100.

[0233] The filter assembly 30 may include a sealing member 300. The sealing member 300 may prevent/reduce water leak between the filter assembly 30 and the sump 70. The sealing member 300 may be disposed between the filter shaft 370 and the sump housing 71. For example, the sealing member 300 may include a substantially ring shape.

[0234] FIG. 30 is a side cross-sectional view taken along a line A-A of FIG. 3 according to various embodiments. FIG. 31 is diagram illustrating a plan cross-sectional view taken along a line B-B of FIG. 30 according to various embodiments. FIG. 32 is a diagram illustrating a plan cross-sectional view taken along a line C-C of FIG. 30 according to various embodiments. FIG. 33 is a diagram illustrating an enlarged view of a portion D shown in FIG. 30 according to various embodiments. FIG. 34 is a diagram illustrating an enlarged view of a portion E shown in FIG. 30 according to various embodiments.

[0235] Referring to FIG. 30, the motor shaft 351 of the filter motor 350 may be inserted into one end of the filter shaft 370. The filter shaft 370 may pass through the shaft hole 718 to be disposed inside the water storage chamber 711. The filter shaft 370 may be engaged with the rotating frame 380. The filter shaft 370 may be inserted into the hollow portion 322 of the second filter 320. The other end of the filter shaft 370 may pass through the hollow portion 322 to protrude from the hollow portion 322. The shaft fixer 390 may be coupled to the other end of the filter shaft 370. A predetermined gap G may be formed between an upper end of the rotating frame 380 and a lower end of the hollow portion 322. The hollow portion 322 may not be affected by the rotation of the rotating frame 380.

[0236] The first filter 310 may be rotated by the filter motor 350. The first filter 310 may receive the rotational force of the filter motor 350 from the filter shaft 370 and the rotation frame 380. The rotational force of the filter motor 350 may be transmitted to the filter shaft 370, and the rotational force of the filter shaft 370 may be transmitted to the rotating frame 380.

[0237] As the filter motor 350 rotates, the filter shaft 370 coupled to the motor shaft 351 of the filter motor 350 may rotate. The filter shaft 370 may be interlocked with the rotation of the filter motor 350. As the filter shaft 370 rotates, the rotating frame 380 engaged with the filter shaft 370 may rotate. The rotating frame 380 may be interlocked with the rotation of the filter shaft 370. As the rotating frame 380 rotates, the first filter 310 fixed to the rotating frame 380 may rotate. The first filter 310 may be provided to rotate together with the rotating frame 380 in a state of being fixed to the rotating frame 380. However, the present disclosure is not limited to the example described above, and the first filter 310 may receive the rotational force directly from the filter motor 350.

[0238] The first filter 310 may be configured to rotate within the water storage chamber 711 during the filter cleaning operation of the dishwasher 1. The filter motor 350 may operate to rotate the first filter 310 during the filter cleaning operation of the dishwasher 1. For example, the first filter 310 may be configured to rotate while the at least one cleaning nozzle 95 and/or 98 injects water toward the first filter 310. Accordingly, an area of the first filter 310 coming into contact with water ejected from the at least one cleaning nozzle 95 and/or 98 may increase. The cleaning efficiency of the first filter 310 may be improved.

[0239] While the first filter 310 rotates, the second filter 320 may not rotate. For example, the filter motor 350, the filter shaft 370, the rotating frame 380, the shaft fixer 390 and the first filter 310 may be configured to rotate together, but the second filter 320 may be configured not to rotate together with the above-mentioned components.

[0240] Referring to FIG. 31, the rotating frame 380 may be configured to be engaged with the filter shaft 370. The inner surface of the passing portion 3823 of the rotating frame 380 may be provided to be engaged with the outer surface of the filter shaft 370. The inner surface of the passing portion 3823 of the rotating frame 380 may be provided to be engaged with an outer surface of the filter shaft body 371. The outer surface of the filter shaft 370 may interfere with the inner surface of the passing portion 3823 of the rotating frame 380. The filter shaft 370 may include the first protrusion 3711 and the first recess portion 3712. The rotating frame 380 may include the second protrusion 3821 and the second recess portion 3822. The second protrusion 3821 of the rotating frame 380 may correspond to the first recess portion 3712 of the filter shaft 370. The second recess portion 3822 of the rotating frame 380 may correspond to the first protrusion 3711 of the filter shaft 370. The second protrusion 3821 of the rotating frame 380 may be accommodated in the first recess portion 3712 of the filter shaft 370. The first protrusion 3711 of the filter shaft 370 may be accommodated in the second recess portion 3822 of the rotating frame 380. With this structure, as the filter shaft 370 rotates, the rotating frame 380 coupled to the filter shaft 370 may also rotate. For example, as the filter shaft 370 is rotated by the filter motor 350, the first protrusion 3711, which is a component of the filter shaft 370, may also be rotated. For example, the first protrusion 3711 may press the second protrusion 3712 in a rotational direction of the filter shaft 370 while rotating. As a result, the rotating frame 380 may be configured to be engaged and rotate together with the filter shaft 370.

[0241] Referring to FIG. 32, the hollow portion 322 may not be engaged with the filter shaft 370. The outer surface of the filter shaft 370 may not interfere with an inner surface of the hollow portion 322. The hollow portion 322 may not include components corresponding to the first protrusion 3711 and the first recess portion 3712. For example, the inner surface of the hollow portion 322 may be formed of a smooth material. For example, the shaft fixer 390 may have low friction resistance by including a POM material. The hollow portion 322 may be in a fixed state without rotating, and the filter shaft 370 and shaft fixer 390 may be provided to rotate within the hollow portion 322. As a result, the second filter 320 may not rotate.

[0242] The second filter 320 may include the fixing rib 324 (see FIGS. 19 and 34), and the third filter 330 may include the rib groove 333 (see FIGS. 19 and 34) corresponding to the fixing rib 324. As the fixing rib 324 is coupled to the rib groove 333, the second filter 320 may be fixed to the third filter 330 and may not rotate.

[0243] Referring to FIG. 33, the first hook 373 of the filter shaft 370 may protrude to the outside of the hollow portion 322. The first hook 373 of the filter shaft 370 may be provided to pass through the hollow portion 322 and be caught on the upper end 322b of the hollow portion 322 (see FIG. 32). The first hook 373 of the filter shaft 370 may be provided to pass through the hollow portion 322 so as to interfere with the hollow portion 322. For example, the first hook protrusion 3732 of the first hook 373 may come into contact with the upper end 322b of the hollow portion 322. The second hook 374 of the filter shaft 370 may protrude to the outside of the hollow portion 322. The second hook 374 of the filter shaft 370 may be provided to pass through the hollow portion 322 and be caught on the upper end 322b of the hollow portion 322. The second hook 374 of the filter shaft 370 may be provided to pass through the hollow portion 322 so as to interfere with the hollow portion 322. For example, the second hook protrusion 3742 of the second hook 374 may come into contact with the upper end 322b of the hollow portion 322.

[0244] The shaft fixer 390 may be inserted into the shaft groove 375. The shaft fixer 390 may be disposed between the first hook 373 and the second hook 374. At least a portion of the shaft fixer 390 may be positioned inside the hollow portion 322.

[0245] The shaft fixer 390 may be coupled to the filter shaft 370 to maintain a gap between the first hook 373 and the second hook 374. The shaft fixer 390 may be coupled to the shaft groove 375 so that the first hook 373 and the second hook 374 are maintained in a state of being caught on the upper end 322b of the hollow portion 322. The shaft fixer 390 may be disposed between the first hook 373 and the second hook 374 to prevent/inhibit the second filter 320 and the filter shaft 370 from being separated.

[0246] As an example, as the filter shaft 370 rotates, the first hook 373 and the second hook 374 may be deformed. The first hook 373 and the second hook 374 may be twisted due to shaking, vibration, and the like occurring when the filter shaft 370 rotates. Accordingly, the first hook 373 and the second hook 374 may move to the inside of the hollow hole 322a while becoming closer to each other. The first hook 373 and the second hook 374 may be released from being caught on the upper end 322b of the hollow portion 322. Accordingly, the second filter 320 and the filter shaft 370 may be separated. In order to prevent/reduce this, the filter assembly 30 may include the shaft fixer 390 inserted into the shaft groove 375 and the hollow portion 322 to be disposed between the first hook 373 and the second hook 374.

[0247] Referring to FIG. 34, the elastic member 3100 may be detachably coupled to the upper portion of the first filter 310. The upper portion of the first filter 310 may be inserted into the insertion groove 3111 of the elastic member 3100. The first body part 3110 of the elastic member 3100 may be provided to surround a portion of the upper portion of the first filter 310. The second body part 3120 of the elastic member 3100 may extend upward from the first body part 3110. The second body part 3120 may extend upward from the outer wall portion 3113 and the connecting side wall 3114 of the first body part 3110. The protruding rib 3130 of the elastic member 3100 may extend to be inclined upward from the second body part 3120.

[0248] The protruding rib 3130 of the elastic member 3100 may be provided to be pressed by the second filter 320. The protruding rib 3130 of the elastic member 3100 may be provided to be pressed downward by the flange part 323 of the second filter 320. The protruding rib 3130 of the elastic member 3100 may be provided to come into contact with the flange part 323 of the second filter 320.

[0249] The protruding rib 3130 of the elastic member 3100 may be provided to be elastically deformed when pressed by the second filter 320. The protruding rib 3130 may be provided to be bent with respect to the second body part 3120. The protruding rib 3130 may be bent toward the space S formed in the elastic member 3100. As the protruding rib 3130 is pressed, the space S formed in the elastic member 3100 may vary. For example, as the elastic member 3100 includes a shape having the space S (or the second opening 3120a, gap; see FIGS. 28 and 29), the protruding rib 3130 may be provided in a configuration of being pressed by the second filter 320. One end of the protruding rib 3130 is fixed to the second body part 3120, and the other end of the protruding rib 3130 may be easily deformed by being pressed by another component in an unsupported state.

[0250] The elastic member 3100 may be configured to seal between the first filter 310 and the second filter 320 by the protruding rib 3130 of the elastic member 3100 being pressed by the second filter 320. Accordingly, foreign substances filtered out by the first filter 310 and collected inside the first filter 310 may not leak out of the first filter 310. The foreign substances filtered out by the first filter 310 and collected inside the first filter 310 may not escape between the first filter 310 and the second filter 320. For example, foreign substances accumulated inside the first filter 310 may escape into a space formed between the outer surface of the first filter 310 and the inner surface of the sump housing 71 and not flow to the circulation pump 61. The elastic member 3100 may prevent/block/reduce foreign substances from circulating through the circulation pump 61. The elastic member 3100 may prevent/reduce the objects to be washed (e.g., dishes) placed inside the tub 12 from being re-contaminated by foreign substances. The elastic member 3100 may improve filtering efficiency of the filter assembly 30.

[0251] The elastic member 3100 may be configured to reduce friction between the first filter 310 and the second filter 320 by the protruding rib 3130 of the elastic member 3100 being pressed by the second filter 320. The protruding ribs 3130 may assist the rotation of the first filter 310. The protruding rib 3130 may guide the rotation of the first filter 310. The protruding rib 3130 may prevent/inhibit the rotation of the first filter 310 from being interfered with by other components. Accordingly, the first filter 310 can rotate smoothly by the elastic member 3100. Accordingly, the first filter 310 may rotate smoothly by the elastic member 3100.

[0252] The drawing illustrates that the protruding rib 3130 of the elastic member 3100 is pressed by the flange part 323 of the second filter 320, but the present disclosure is not limited thereto. For example, the protruding rib 3130 of the elastic member 3100 may be pressed by a configuration of being adjacent to the first filter 310 and disposed above the first filter 310. In some cases, the third filter 330 or the bottom 12b of the tub 12 may be configured to press the protruding rib 3130. However, there is no limitation on the configuration as long as the configuration of pressing the protruding rib 3130 is provided to be disposed above the protruding rib 3130 to come into contact with the protruding rib 3130.

[0253] According to an example embodiment of the present disclosure, a dishwasher may include: a tub, a water storage chamber disposed below the tub and configured to store water in the tub, a filter disposed inside the water storage chamber and configured to filter water introduced into the water storage chamber, a filter motor configured to generate a rotational force to rotate the filter, and an elastic member comprising an elastic material configured to guide rotation of the filter. The elastic member may include a first body part mountable on an upper portion of the filter and including a first opening, and a second body part extending upward from the first body part and including a second opening larger than the first opening.

[0254] The elastic member may further include a protruding rib extending upward from the second body part and configured to be bent in an inner direction of the second opening.

[0255] The filter may include a first filter. The dishwasher may further include a second filter configured to filter water introduced into the water storage chamber and flowing toward the first filter. The protruding rib of the elastic member may be configured to be pressed by at least one of the second filter and a bottom of the tub.

[0256] The filter may include a first filter. The dishwasher may further include a second filter configured to filter water introduced into the water storage chamber and flowing toward the first filter. The elastic member may be configured to provide a seal between the first filter and the second filter, or to provide a seal between the first filter and a bottom of the tub.

[0257] The dishwasher may further include a shaft configured to be rotated by the filter motor and configured to transmit the rotational force of the filter motor to the filter.

[0258] The shaft may include a shaft body extending in a vertical direction, a motor coupling portion formed at a first end of the shaft body and couplable to a motor shaft of the filter motor, a first hook protruding upward from a second end of the shaft body, a second hook disposed to be spaced apart from the first hook and protruding upward from the second end of the shaft body, and a shaft groove formed between the first hook and the second hook.

[0259] The filter may include a first filter. The dishwasher may further include a second filter configured to filter water introduced into the water storage chamber and flowing toward the first filter. The second filter may include a filter body configured such that at least a portion of the filter body is disposed inside the first filter, and a hollow portion formed inside the filter body so that the shaft is insertable therein.

[0260] The first hook and the second hook of the shaft may be configured to pass through the hollow portion and to be caught on an upper end of the hollow portion.

[0261] The dishwasher may further include a shaft fixer couplable to the shaft groove so that the first hook and the second hook are maintained in a state of being caught on the upper end of the hollow portion.

[0262] The dishwasher may further include a rotating frame configured to connect the shaft and the filter and configured to be rotated by the shaft.

[0263] The rotating frame may include a filter fixing part mountable on a lower portion of the filter, and a shaft fixing part connected to the filter fixing part and configured to be engaged with an outer surface of the shaft.

[0264] The shaft may include a first protrusion protruding from the outer surface of the shaft, and a first recess portion provided on the outer surface of the shaft and adjacent to the first protrusion. The shaft fixing part of the rotating frame may include a passing portion provided such that the shaft is configured to pass therethrough, a second protrusion protruding from an inner surface of the passing portion and corresponding to the first recess portion, and a second recess portion provided on the inner surface of the passing portion adjacent to the second protrusion and corresponding to the first protrusion.

[0265] The filter may include a first filter. The dishwasher may further include a second filter disposed inside the water storage chamber such that at least a portion of the second filter is surrounded by the first filter. The dishwasher may further include a third filter disposed above the first filter to be placed on the bottom of the tub and including a filter hole. The second filter may include a filter body insertable into the filter hole of the third filter, a flange part protruding from an outer surface of the filter body and configured to press downward the protruding rib of the elastic member, and a fixing rib formed on the flange part. The third filter may include a rib groove corresponding to the fixing rib.

[0266] The first body part of the elastic member may include an inner wall portion forming the first opening and corresponding to an inner surface of the filter, an outer wall portion disposed to be spaced apart from the inner wall portion corresponding to an outer surface of the filter and extending downward from the second body part, a connecting wall portion connecting the inner wall portion and the outer wall portion, and an insertion groove formed by the inner wall portion, the outer wall portion, and the connecting wall portion and having a shape being open downward so that the upper portion of the filter is insertable therein.

[0267] The filter motor may be disposed outside the water storage chamber. The dishwasher may further include a motor cover configured to cover the filter motor and configured to block/reduce water flowing out from the water storage chamber from being introduced into the filter motor and including a cover hole configured to drain water flowing out from the water storage chamber.

[0268] According to an example embodiment of the present disclosure, a dishwasher may include: a tub, a water storage chamber disposed below the tub and configured to store water in the tub, a first filter configured to filter water flowing from the tub to the water storage chamber, a second filter disposed inside the water storage chamber to surround at least a portion of the first filter and configured to filter water passed through the first filter, a filter motor configured to generate a rotational force to rotate the second filter, and a rotational guide member comprising an elastic material. The rotational guide member may be configured to provide a seal between the first filter and the second filter and reduce friction occurring between the first filter and the second filter while the first filter rotates.

[0269] The rotational guide member may include a first body part mountable on an upper portion of the second filter, and a second body part extending upward from the first body part, and a protruding rib extending slantly upward from the second body part to form a gap with the first body part and configured to be pressed downward by the first filter.

[0270] The first filter may include a filter body and a hollow portion formed inside the filter body.

[0271] The dishwasher may further include: a shaft configured to transmit the rotational force generated by the filter motor to the second filter. The shaft may include a shaft body extending in a vertical direction and insertable into the hollow portion, a motor coupling portion formed at a first end of the shaft body and couplable to a motor shaft of the filter motor, a first hook protruding upward from a second end of the shaft body to pass through the hollow portion and configured to interfere with the hollow portion, and a second hook disposed to be spaced apart from the first hook and protruding upward from the second end of the shaft body and configured to pass through the hollow portion to interfere with the hollow portion.

[0272] The dishwasher may further include a shaft fixer connectable to the shaft and configured to maintain a gap between the first hook and the second hook.

[0273] According to the present disclosure, the convenience of use of a dishwasher can be improved.

[0274] According to the present disclosure, a filter may rotate during a filter cleaning operation of the dishwasher. Therefore, a cleaning area of the filter can be increased and the filter cleaning efficiency can be improved.

[0275] According to the present disclosure, the dishwasher may include an elastic member to reduce friction between the filter and another component adjacent to the filter. Therefore, the elastic member can enable the filter to rotate smoothly.

[0276] According to the present disclosure, the dishwasher may include an elastic member to seal between the filter and another component adjacent to the filter.

[0277] Therefore, the elastic member can prevent/block foreign substances accumulated inside the filter from escaping outside the filter.

[0278] Effects obtainable from the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art to which the present disclosure belongs.

[0279] While the disclosure has been illustrated and described with reference to various example embodiments, it will be understood that the various embodiments are intended to be illustrative, not limiting. It will be further understood by those of skilled in the art that the present disclosure is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the technical idea of the present disclosure including the following claims and their equivalents. It will also be understood that any of the embodiment(s) described herein may be used in conjunction with any other embodiment(s) described herein.