MISTING FAN

Abstract

A misting fan includes a fan assembly, a nozzle assembly, a motor, a battery pack, and a battery pack holder. The nozzle assembly is configured to spray mist in front of an air outlet of the fan assembly. The motor is configured to drive the fan blade assembly to rotate. The battery pack is configured to supply energy to the motor. The battery pack holder receives the battery pack. A fan housing is configured to rotate about a vertical axis relative to the battery pack holder. The battery pack holder does not rotate about the vertical axis along with the fan housing.

Claims

1. A misting fan, comprising: a fan assembly comprising a fan housing and a fan blade assembly accommodated in the fan housing; a nozzle assembly that sprays mist in front of an air outlet of the fan assembly; a motor that drives the fan blade assembly to rotate; a battery pack that supplies energy to the motor; and a battery pack holder that receives the battery pack, wherein the fan housing is coupled to the battery pack holder and the fan housing is rotatable about a vertical axis relative to the battery pack holder.

2. The misting fan according to claim 1, wherein a voltage of the battery pack is A, and 20 VA60 V.

3. The misting fan according to claim 1, wherein the battery pack is assembled to the battery pack holder in a horizontal direction that extends from a first side of the battery pack holder to a second side of the battery pack holder.

4. The misting fan according to claim 1, wherein the fan housing is electrically driven to rotate about the vertical axis.

5. The misting fan according to claim 1, further comprising a rotation motor, wherein the rotation motor is at a fixed position relative to the battery pack holder and drives the fan housing to rotate about the vertical axis.

6. The misting fan according to claim 1, wherein an amplitude of rotation of the fan housing about the vertical axis is adjustable.

7. The misting fan according to claim 1, wherein a diameter of the fan blade assembly is d1, and 7 inches<d120 inches.

8. The misting fan according to claim 1, wherein a power of the motor is B, and 5 WB200 W.

9. The misting fan according to claim 1, wherein an air flow of the fan assembly is m, and 990 cfmm1210 cfm.

10. The misting fan according to claim 1, further comprising a rotary base, wherein the fan housing is connected to the rotary base, and the rotary base is rotatable about the vertical axis relative to the battery pack holder.

11. The misting fan according to claim 10, further comprising a connector, wherein the connector connects the fan housing to the rotary base.

12. The misting fan according to claim 10, further comprising a wire harness and a connecting portion, wherein the rotary base is rotatably connected to the connecting portion, and a rib is provided between the rotary base and the connecting portion and engages with the wire harness.

13. The misting fan according to any one of claim 1, wherein the fan housing is further rotatable about a horizontal axis relative to the battery pack holder.

14. The misting fan according to claim 1, further comprising a bucket, wherein the bucket is configured to accommodate liquid for the misting fan, the misting fan is connected to a top edge of the bucket, and a projected center of gravity of the misting fan is within the top edge of the bucket.

15. The misting fan according to claim 1, further comprising an accessory and a base for supporting the misting fan, wherein the accessory is detachably mounted on the base circumferentially.

16. A misting fan, comprising: a fan assembly comprising a fan housing and a fan blade assembly accommodated in the fan housing; a nozzle assembly that sprays mist in front of an air outlet of the fan assembly; a motor that drives the fan blade assembly to rotate; and a battery pack that supplies energy to the motor; wherein the fan assembly is coupled to the battery pack and the fan assembly is moveable in a horizontal direction relative to the battery pack.

17. A misting fan, comprising: a fan assembly comprising a fan blade assembly; a nozzle assembly that sprays mist toward an air outlet of the fan assembly; a motor that drives the fan blade assembly to rotate; and a battery pack that supplies energy to the motor, wherein the battery pack is coupled to the fan assembly and the fan assembly is rotatable about a vertical axis relative to the battery pack.

18. The misting fan according to claim 17, further comprising an accessory and a base for supporting the misting fan, wherein the accessory is detachably mounted on the base circumferentially.

19. The misting fan according to claim 17, further comprising a bucket, wherein the bucket is configured to accommodate liquid for the misting fan, the misting fan is connected to a top edge of the bucket, and a projected center of gravity of the misting fan is within the top edge of the bucket.

20. The misting fan according to claim 17, wherein the fan housing is electrically driven to rotate about the vertical axis.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 is a schematic view of a misting fan from a first viewing angle according to an example of the present application.

[0024] FIG. 2 is a schematic view of a misting fan from a second viewing angle according to an example of the present application.

[0025] FIG. 3 is a front view of a misting fan according to an example of the present application.

[0026] FIG. 4 is a sectional view along A-A in FIG. 3.

[0027] FIG. 5 is a top view of a base and a rotary base according to an example of the present application.

[0028] FIG. 6 is a schematic view showing the connection between a rotary base and a transmission assembly from a first viewing angle according to an example of the present application.

[0029] FIG. 7 is a schematic view showing the connection between a rotary base and a transmission assembly from a second viewing angle according to an example of the present application.

[0030] FIG. 8 is an exploded view of a rotary base and a transmission assembly from a first viewing angle according to an example of the present application.

[0031] FIG. 9 is an exploded view of a rotary base and a transmission assembly from a second viewing angle according to an example of the present application.

[0032] FIG. 10 is an exploded view of a rear housing assembly according to an example of the present application.

[0033] FIG. 11 is a schematic view showing the connection between a fan and a rotary base according to an example of the present application.

[0034] FIG. 12 is a schematic view of a fan and a nozzle assembly according to an example of the present application.

[0035] FIG. 13 is a schematic view of a misting fan assembly according to an example of the present application.

[0036] FIG. 14 is a schematic diagram of a control panel according to an example of the present application.

[0037] FIG. 15 is a schematic diagram showing the positional relationship between a projected center of gravity of a first misting fan and the top edge of a bucket according to an example of the present application.

[0038] FIG. 16 is a schematic diagram showing the positional relationship between a projected center of gravity of a second misting fan and the top edge of a bucket according to an example of the present application.

[0039] FIG. 17 is a schematic diagram showing the positional relationship between a projected center of gravity of a third misting fan and the top edge of a bucket according to an example of the present application.

DETAILED DESCRIPTION

[0040] Before any examples of this application are explained in detail, it is to be understood that this application is not limited to its application to the structural details and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0041] In this application, the terms comprising, including, having or any other variation thereof are intended to cover an inclusive inclusion such that a process, method, article or device comprising a series of elements includes not only those series of elements, but also other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase comprising a . . . does not preclude the presence of additional identical elements in the process, method, article, or device comprising that element.

[0042] In this application, the term and/or is a kind of association relationship describing the relationship between associated objects, which means that there can be three kinds of relationships. For example, A and/or B can indicate that A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character / in this application generally indicates that the contextual associated objects belong to an and/or relationship.

[0043] In this application, the terms connection, combination, coupling and installation may be direct connection, combination, coupling or installation, and may also be indirect connection, combination, coupling or installation. Among them, for example, direct connection means that two members or assemblies are connected together without intermediaries, and indirect connection means that two members or assemblies are respectively connected with at least one intermediate members and the two members or assemblies are connected by the at least one intermediate members. In addition, connection and coupling are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0044] In this application, it is to be understood by those skilled in the art that a relative term (such as about, approximately, and substantially) used in conjunction with quantity or condition includes a stated value and has a meaning dictated by the context. For example, the relative term includes at least a degree of error associated with the measurement of a particular value, a tolerance caused by manufacturing, assembly, and use associated with the particular value, and the like. Such relative term should also be considered as disclosing the range defined by the absolute values of the two endpoints. The relative term may refer to plus or minus of a certain percentage (such as 1%, 5%, 10%, or more) of an indicated value. A value that did not use the relative term should also be disclosed as a particular value with a tolerance. In addition, substantially when expressing a relative angular position relationship (for example, substantially parallel, substantially perpendicular), may refer to adding or subtracting a certain degree (such as 1 degree, 5 degrees, 10 degrees or more) to the indicated angle.

[0045] In this application, those skilled in the art will understand that a function performed by an assembly may be performed by one assembly, multiple assemblies, one member, or multiple members. Likewise, a function performed by a member may be performed by one member, an assembly, or a combination of members.

[0046] In this application, the terms up, down, left, right, front, and rear and other directional words are described based on the orientation or positional relationship shown in the drawings, and should not be understood as limitations to the examples of this application. In addition, in this context, it also needs to be understood that when it is mentioned that an element is connected above or under another element, it can not only be directly connected above or under the other element, but can also be indirectly connected above or under the other element through an intermediate element. It should also be understood that orientation words such as upper side, lower side, left side, right side, front side, and rear side do not only represent perfect orientations, but can also be understood as lateral orientations. For example, lower side may include directly below, bottom left, bottom right, front bottom, and rear bottom.

[0047] In this application, the terms controller, processor, central processor, CPU and MCU are interchangeable. Where a unit controller, processor, central processing, CPU, or MCU is used to perform a specific function, the specific function may be implemented by a single aforementioned unit or a plurality of the aforementioned unit.

[0048] In this application, the term device, module or unit may be implemented in the form of hardware or software to achieve specific functions.

[0049] In this application, the terms computing, judging, controlling, determining, recognizing and the like refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0050] As shown in FIGS. 1 to 13, the misting fan includes a fan assembly 1, a nozzle assembly 2, a motor 19, a battery pack 3, and a battery pack holder 4. The fan assembly 1 includes a fan housing 101 and a fan blade assembly 102 accommodated in the fan housing 101. The motor 19 is configured to drive the fan blade assembly 102 to rotate. The nozzle assembly 2 is configured to spray mist in front of an air outlet of the fan assembly 1. The fan assembly 1 and the nozzle assembly 2 are provided to accelerate air circulation and spray mist, thereby achieving the objects of cooling and humidification. The battery pack holder 4 receives the battery pack 3. The battery pack 3 is configured to supply energy to the motor 19, that is, the motor 19 is powered by a direct current power supply. Compared with the solution that the motor is powered by an alternating current power supply, this configuration solves the problems of inconvenient use and poor safety performance.

[0051] The fan housing 101 is configured to rotate about a vertical axis 1000 relative to the battery pack holder 4. Those skilled in the art should understand that the vertical axis 1000 is defined as an axis substantially perpendicular to a working plane. The vertical axis 1000 extends generally along a vertical direction and may form a relatively small angle with the vertical direction. The relative position of the fan assembly 1 relative to the battery pack 3 in a horizontal direction is changeable. When the fan housing 101 rotates from side to side, the position of the battery pack 3 changes relative to the fan housing 101 in the horizontal direction. Those skilled in the art should understand that the horizontal direction is defined as a direction substantially parallel to the working plane. The battery pack holder 4 receives at least part of the battery pack 3. That is, the fan assembly 1 rotates to supply air evenly, and the fan assembly 1 rotates from side to side without the battery pack 3 and the battery pack holder 4, thereby reducing the weight of the fan assembly 1 during the rotation, making the structure more flexible, and reducing power consumption. A misting fan with a large air flow requires a relatively large battery pack 3. In the case where the battery pack 3 has a relatively large volume and a relatively heavy weight, the position of the battery pack holder 4 and the position of the battery pack 3 remain unchanged when the fan assembly 1 rotates from side to side. The battery pack holder 4 does not rotate along with the fan housing 101, thereby reducing energy loss.

[0052] The nozzle assembly 2 includes a nozzle (not shown in the figure), a water pipe assembly (not shown in the figure) connected to the nozzle, and a water pump. The water pump supplies liquid to the nozzle through the water pipe assembly, and the nozzle sprays mist. A filtering assembly is connected to the end of the water pipe assembly facing away from the nozzle and is configured to filter liquid. As shown in FIGS. 11 and 12, nozzles are disposed on the fan housing 101 and rotate along with the fan assembly 1, ensuring that mist is always sprayed toward the air outlet. Liquid may be supplied to the nozzle assembly 2 through a static water source and a dynamic water source. That is, the static water source and the dynamic water source share one waterway, and corresponding connectors are disposed on the water pipe assembly when different water sources are used. In an example, two nozzles are disposed and symmetrically mounted on the left and right sides of the fan housing 101. The water pipe assembly includes a three-way connector, a main pipe connected to the three-way connector, and two branch pipes connected to the three-way connector. The two branch pipes are connected to the two nozzles correspondingly, and the main pipe is connected to the water pump. In other examples, the nozzles may be disposed on the upper and lower sides of the fan housing 101 or other positions, and the number of nozzles may be one, three, four, or the like. Correspondingly, the number of branch pipes is consistent with the number of nozzles. The number and size of the nozzles affect parameters such as the amount of sprayed mist. The specific number and mounting positions of the nozzles are configured according to requirements and are not limited herein.

[0053] In this example, the misting fan is electrically driven to rotate about the vertical axis 1000 so that the misting fan sprays mist evenly, achieves good blowing and misting effects, and is convenient to use. As shown in FIGS. 6 to 8, in some examples, the misting fan further includes a rotation motor 21 and a pump motor (not shown in the figure). The rotation motor 21 and the pump motor are both at fixed positions relative to the battery pack holder 4. The rotation motor 21 is configured to drive the fan housing 101 to rotate, and the pump motor is configured to drive the water pump to operate. The fan blade assembly 102, the fan housing 101, and the water pump are driven by different motors, respectively, and the control method is simple and efficient.

[0054] In some examples, the rotation motor 21 is configured to drive the fan housing 101 to rotate. The motor 19 is configured to drive both the fan blade assembly 102 and the water pump to operate. In an example, the motor 19 drives the fan blade assembly 102 and the water pump simultaneously through a mechanical linkage. The mechanical linkage includes one input end and two output ends, the motor 19 is connected to the input end of the mechanical linkage, and the two output ends are connected to the fan blade assembly 102 and the water pump, respectively. In this example, no pump motor is used. The rotation motor 21 drives the fan housing 101 to rotate, and the motor 19 drives the fan blade assembly 102 and the water pump to operate. Two motors are used in total to drive the misting fan to operate, thereby making the structure simple and reducing the cost.

[0055] In some examples, the rotation motor 21 is configured to drive the fan housing 101 and the water pump to operate. In this example, no pump motor is used. The rotation motor 21 drives the fan housing 101 and the water pump to operate, and the motor 19 drives the fan blade assembly 102 to operate. Two motors are used in total to drive the misting fan to operate, thereby making the structure simple and reducing the cost.

[0056] In some examples, the motor 19 drives the fan housing 101 to rotate and drives the fan blade assembly 102 and the water pump to operate. One motor is used in total to drive the misting fan to operate, thereby reducing the cost.

[0057] The battery pack 3 supplies power to the motor 19, the rotation motor 21, and a control system mentioned above. When the pump motor is provided, the battery pack 3 also supplies power to the pump motor.

[0058] As shown in FIG. 2, the battery pack holder 4 is provided with an insertion slot 403. The battery pack 3 is laterally assembled to the battery pack holder 4 substantially along a left and right direction. The battery pack 3 may be laterally assembled to the battery pack holder 4 from the left side or may be laterally assembled to the battery pack holder 4 from the right side. In an insertion process, the misting fan stands stably on a bucket 20, avoiding overturning. In other examples, the battery pack 3 may be assembled to the battery pack holder 4 from the up, down, front, or rear direction.

[0059] As shown in FIGS. 1 to 4, the misting fan further includes a rotary base 5 and a base 18. The fan housing 101 is connected to the rotary base 5, and the rotary base 5 is configured to rotate about the vertical axis 1000 relative to the battery pack holder 4. The base 18 may be used for accommodating the water pump, the rotation motor 21, and the like. During assembly, the rotary base 5 is assembled to the base 18, and then the fan housing 101 is mounted onto the rotary base 5. The rotary base 5 and the fan housing 101 are disposed separately, thereby facilitating the assembly. The rotary base 5 and the base 18 are disposed separately, facilitating the rotation of the misting fan about the vertical axis. The base 18 and the battery pack holder 4 are separately disposed, facilitating the assembly.

[0060] As shown in FIGS. 1 to 6, the misting fan further includes connectors 6. The connectors 6 connect the fan housing 101 to the rotary base 5. The connectors 6 may be integrally formed with one of the fan housing 101 and the rotary base 5 and may be detachably connected to the other one of the fan housing 101 and the rotary base 5, or the connectors 6 may be detachably connected to both the fan housing 101 and the rotary base 5. The detachable connection may be a threaded connection, insertion, a snap-fit connection, or the like, which is not limited. Exemplarily, the connectors 6 are tubular. On the one hand, water pipe assemblies may be inserted through the insides of the connectors 6, thereby preventing the water pipe assemblies from being exposed outside and improving aesthetics and reliability. On the other hand, the tubular connectors 6 have relatively high structural strength to support the fan assembly 1, and the weights of the tubular connectors 6 are reduced when the tubular connectors 6 rotate along with the fan assembly 1, thereby further making the structure more flexible and reducing the power consumption. The connectors 6 may be metal members, plastic members, or the like as long as sufficient structural strength is ensured. The materials of the connectors 6 are not limited. The rotary base 5 is provided with insertion holes 401, and the connectors 6 are inserted into the insertion holes 401.

[0061] The connectors 6 may have a certain curvature to prevent structural interference between the connectors 6 and the battery pack 3 or the battery pack holder 4 when the connectors 6 rotate along with the fan assembly 1. The number of the connectors 6 is two so that mounting stability is improved.

[0062] As shown in FIGS. 1 and 2, at least part of the battery pack holder 4 and the base 18 are located below the fan housing 101. In an example, the base 18 further includes a connecting portion 402. The connecting portion 402 is located under the rotary base 5, and the rotary base 5 is rotatably connected to the connecting portion 402. Both the rotary base 5 and the battery pack holder 4 are mounted on the base 18. In another example, the entire battery pack holder 4 is located below the fan housing 101. In another example, the battery pack holder 4 and the base 18 are integrally formed.

[0063] As shown in FIG. 4, the motor 19 is relatively fixed to the fan housing 101. The battery pack 3 is configured to supply power to the motor 19, and the control system controls the motor 19. The motor 19 is connected to the battery pack 3 and the control system through cables. When the nozzles are fixed to the fan housing 101, the water pipe assemblies are inserted through the insides of the connectors 6 and extend into the battery pack holder 4. The water pipe assemblies and the cables form a wire harness, and one end of the wire harness rotates along with the fan assembly 1 relative to the battery pack holder 4. In an example, as shown in FIG. 4, a rib 7 is provided between the rotary base 5 and the connecting portion 402. The rib 7 is configured to limit the wire harness to prevent the wire harness from being entwined when the rotary base 5 rotates relative to the connecting portion 402. Thus, wear on the wire harness is reduced when the wire harness rotates along with the fan assembly 1. The wire harness may be fastened to the rib 7 through a cable tie. Alternatively, at least two ribs 7 may be provided, and the wire harness is disposed in the gap between the two ribs 7. The rib 7 may be provided on one of the rotary base 5 and the connecting portion 402, or the rib 7 may be provided on each of the rotary base 5 and the connecting portion 402 as long as the wire harness is limited. When the wire harness is limited between the two ribs 7, the ribs 7 can also prevent the wire harness from being exposed between the rotary base 5 and the connecting portion 402, thereby achieving a waterproof effect.

[0064] The surfaces of the rotary base 5 and the connecting portion 402 facing each other are flat, preventing structural interference from affecting the rotation.

[0065] A first mounting base 12 is disposed at the bottom of the rotary base 5 and is rotatably connected to the connecting portion 402 to ensure smooth rotation.

[0066] As shown in FIGS. 3 and 4, the misting fan includes an accessory 16 and the base 18 that supports the misting fan. The accessory 16 is detachably mounted on the base 18 circumferentially. The accessory 16 may be an accessory 16 for connecting the water pipe or an accessory 16 of the nozzle, which may be configured as required and is not limited.

[0067] As shown in FIGS. 6 to 9, the misting fan further includes a transmission assembly 9. The rotation motor 21 drives, through the transmission assembly 9, the rotary base 5 to rotate. The transmission assembly 9 includes a driving gear 901 and a driven gear 902 to improve transmission precision. The driven gear 902 is a segment gear and may be configured according to the maximum rotation amplitude of the fan assembly 1.

[0068] The misting fan includes a fixing plate 10, a fixing shaft 11, a second mounting base 13, a third mounting base 14, and a fourth mounting base 15. The fixing plate 10 is fixed relative to the battery pack holder 4, and the fixing shaft 11 is fixed relative to the fixing plate 10 and the battery pack holder 4. The driving gear 901 and the driven gear 902 are both rotatably connected to a mounting block. The fixing shaft 11 is inserted through the driven gear 902 and the first mounting base 12, and the first mounting base 12 is rotatably connected to the fixing shaft 11. The rotary base 5 may be formed by combining multiple half housings. For example, an upper housing where the control panel 8 is located, a lower housing, and the fourth mounting base 15 are combined to form an accommodation space in which the second mounting base 13 and the third mounting base 14 are accommodated and fixed. The control system and other structures are mounted on the second mounting base 13 and the third mounting base 14. During assembly, the lower housing is mounted on the first mounting base 12 and mounted together with the battery pack holder 4. Then, the control system and other components are then mounted inside the rotary base 5. Afterwards, the upper housing and the fourth mounting base 15 are mounted. The rotary base 5 is configured to be separated, facilitating the assembly. The upper housing and the fourth mounting base 15 are combined to form the insertion holes 401 for the connectors 6 to be inserted into.

[0069] As shown in FIGS. 2 and 10, the misting fan includes a rear housing assembly 17. The rear housing assembly 17 is used for mounting the motor 19. The fan housing 101 is connected to the connectors 6 through the rear housing assembly 17. The rear housing assembly 17 includes a first housing 171, a second housing 172, a third housing 173, a fourth housing 174, and pressing sheets 176. The preceding structures are together combined into the rear housing assembly 17. The fourth housing 174 is used to be connected to the fan housing 101, for example, through a snap or a screw, and the motor 19 is mounted in the fourth housing 174. Hollow projecting shafts 1741 extend toward two ends of the fourth housing 174. The first housing 171 and the second housing 172 are half housings and combined into a U-shaped housing. The U-shaped housing surrounds three sides of the fourth housing 174. Two ends of the U-shaped housing are provided with adjustment holes 175. The projecting shafts 1741 are mounted in the adjustment holes 175. During assembly, the projecting shafts 1741 are pressed onto the first housing 171 through the pressing sheets 176. Then, the second housing 172 is combined with the first housing 171. The pressing sheet 176 is connected to the first housing 171 through a screw. The third housing 173 is connected to the middle portion of the U-shaped housing on a side of the U-shaped housing facing away from the fourth housing 174. The fourth housing 174 and the U-shaped housing form holes for the connectors 6 to be inserted into. The rear housing assembly 17 communicates with the connectors 6 and thus communicates with the rotary base 5.

[0070] The fan housing 101 is configured to rotate about a horizontal axis 2000 relative to the battery pack holder 4 so that the angle of the air outlet of the fan assembly 1 relative to a horizontal plane is adjusted. The projecting shafts 1741 are rotatably connected to the adjustment holes 175 to enable the adjustment. The projecting shafts 1741 may be driven by the motor so as to be electrically driven. Alternatively, the fan housing 101 may be rotated manually so that the angle is manually adjusted. For example, set screws may be mounted on the U-shaped housing, and after the fan housing 101 is rotated to a desired angle, the set screws are tightened.

[0071] In some examples, the angle range of the rotation of the fan assembly 1 about the horizontal axis 2000 is 20 to 60 or 15 to 45. The angle may be continuously adjusted or may be adjusted to one of several angles, such as 15, 0, 15, 30, and 45. The horizontal axis 2000 is substantially parallel to the working plane, generally extends along the horizontal direction, and may form a relatively small angle with the horizontal direction. In some examples, the misting fan is electrically driven to rotate about the horizontal axis 2000 so that the misting fan sprays mist evenly, achieves good blowing and misting effects, and is convenient to use. In some examples, a user manually rotates the misting fan about the horizontal axis 2000, thereby reducing energy consumption and the manufacturing cost.

[0072] In some examples, the battery pack 3 has a battery capacity Q, where Q8 Ah, thereby extending the battery lifetime of the battery pack 3. The fan assembly 1 rotates without the battery pack 3 so that the power consumption and wear are further reduced. In some examples, the battery capacity Q6 Ah. In some examples, the battery capacity Q5 Ah.

[0073] The fan blade assembly 102 includes multiple fan blades. The multiple fan blades are connected to the periphery of the output shaft of the motor 19. The number of fan blades may be 3 to 5 and is set according to relevant technologies. As shown in FIG. 12, the diameter of the fan blade assembly 102 is d1, where 4 inches<d120 inches. The diameter of the fan blade assembly 102 is increased so that the air flow of the fan is increased. However, the greater the generated air flow, the greater the power consumption. Therefore, it is necessary to consider the indicators comprehensively for setting the diameter of the fan blade assembly 102. In some examples, 7 inches<d120 inches. In some examples, 7 inches<d110 inches. In some examples, 7.5 inches<d19.5 inches. In some examples, the diameter of the fan blade assembly 102 is 8 inches, 8.5 inches, 9 inches, or 9.5 inches. In some examples, when 7.5 inches<d19.5 inches, the diameter of the fan housing 101 is d2, where 7.5 inchesd212 inches. The size of the fan housing 101 is larger than that of the fan blade assembly 102 so that the fan blade assembly 102 is accommodated in the fan housing 101. In an example, as shown in FIG. 11, the fan assembly 1 further includes a fan cover 103. The fan cover 103 is mounted on the fan housing 101 to form an accommodation space, and the fan blade assembly 102 is disposed in the accommodation space.

[0074] As shown in FIG. 14, the control panel 8 is provided with operation buttons, a gear indicator 801, a function indicator 802, and a rotation amplitude indicator 806. The operation buttons include a button 803, a gear increase button 804, and a gear decrease button 805, which are configured to control different operating modes of the misting fan. The button 803 is a power button/a function switch button. A long press is performed on the button 803, or the button 803 is tapped to turn on the fan. After the fan is turned on, the button 803 is tapped to switch the rotation and adjust the amount of sprayed mist and a wind speed. When the fan is switched to a corresponding adjustment gear, the rotation amplitude indicator 806, the function indicator 802, and the gear indicator 801 light up. When the fan is switched to a corresponding adjustment gear, a gear is selected through the gear increase button 804 and the gear decrease button 805. The long press is performed on the button 803 to turn off the fan.

[0075] In some examples, the amplitude of the rotation of the fan housing 101 about the vertical axis 1000 is adjustable, that is, the amplitude of the rotation from side to side is adjustable. When the fan is switched to the rotation adjustment mode through the operation panel, the number of forward rotations and the number of reverse rotations of the rotation motor 21 are controlled so that the amplitude can be adjusted. The rotational speed of the motor 21 is controlled so that the air flow is adjusted. The rotational speed of the water pump is controlled so that the amount of sprayed mist is adjusted. The preceding configurations are performed in accordance with relevant technologies, and the details are not repeated here.

[0076] In some examples, the fan assembly 1 rotates about the horizontal axis 1000 from side to side symmetrically. The rotation angle is 50 to 150 or 60 to 120. The angle may be continuously adjusted or may be adjusted to one of several angles, such as 60, 75, 90, 105, and 120.

[0077] In some examples, an air flow of the fan assembly 1 is m, where 200 cfmm6000 cfm. In some examples, 500 cfmm3500 cfm. In some examples, 990 cfmm1210 cfm. In some examples, 1050 cfmm1150 cfm. In some examples, 1000 cfmm1100 cfm. In some examples, m may be 1000 cfm, 1020 cfm, 1040 cfm, 1060 cfm, 1080 cfm, or 1100 cfm.

[0078] In some examples, power of the motor 19 is B, where 5 WB200 W. In some examples, 15 WB150 W. In some examples, 50 WB120 W. In some examples, B may be 300 W, 250 W, 220 W, 180 W, 160 W, 140 W, 100 W, or 80 W. The greater the power of the motor 19, the larger the diameter of the fan blade assembly 102 that can be driven, thereby increasing the air flow.

[0079] In some examples, a voltage of the battery pack 3 is A, where 20 VA60 V. In some examples, 30 VA50 V. The voltage of the battery pack 3 is increased. Thus, the motor 19 has a higher rotational speed, thereby making the wind speed higher and the air flow larger.

[0080] In some examples, the battery pack holder 4 may have an open structure, a planar structure, or a socket structure. The battery pack 3 may be directly mounted on the base 18 or may be disposed independently of the base 18. The fan assembly 1 is configured to rotate about the vertical axis 1000 relative to the battery pack 3. The fan assembly 1 rotates to supply air evenly, and the fan assembly 1 rotates without the battery pack 3, thereby reducing the weight of the fan assembly 1 during the rotation, making the structure more flexible, and reducing the power consumption.

[0081] As shown in FIGS. 13 to 17, a misting fan includes a bucket 20 and the misting fan as described above. The bucket 20 is configured to accommodate liquid for the misting fan. The misting fan is connected to the top edge 201 of the bucket 20. A projected center of gravity G of the misting fan is within the top edge 201 of the bucket 20. The projection of the misting fan on the horizontal plane at the top of the bucket 20 forms a projection region 300. The center of gravity of the misting fan forms the projected center of gravity G in the projection region 300, and the projected center of gravity G is within the top edge 201, ensuring that the misting fan and the bucket 20 are stably mounted. When the fan assembly 1 rotates, the relatively heavy battery pack 3 does not rotate. In this manner, even if the fan assembly 1 rotates from side to side with a large amplitude, the center of gravity of the misting fan is stable.

[0082] The appearance size of the misting fan and the appearance size of the top edge 201 of the bucket 20 are not specifically limited. As shown in FIGS. 15 to 17, in a first example, the appearance size of the misting fan is larger than the appearance size of the top edge 201 of the bucket 20 in one direction, and the appearance size of the misting fan is smaller than the appearance size of the top edge 201 of the bucket 20 in another direction, in a second example, the appearance of the misting fan overlaps the top edge 201 of the bucket 20, and in a third example, the appearance of the misting fan completely covers the top edge 201 of the bucket 20 as long as it is ensured that the projected center of gravity G of the misting fan is within the top edge 201. The preceding example only illustrates the top edge 201 of the bucket 20 and the appearance of the misting fan. The top edge 201 of the bucket 20 and the appearance of the misting fan may have the same shape, different shapes, regular shapes such as a rectangle or a circle, or irregular shapes, which is not limited. The base 18 of the misting fan is mounted on the top of the bucket 20. The appearance size of the base 18 is not smaller than the appearance size of the top of the bucket 20 in at least one direction so that the base 18 can stably support the bucket 20.

[0083] The basic principles, main features, and advantages of this application are shown and described above. It is to be understood by those skilled in the art that the aforementioned examples do not limit the present application in any form, and all technical solutions obtained through equivalent substitutions or equivalent transformations fall within the scope of the present application.