HOUSEHOLD APPLIANCE

Abstract

The invention relates to a household appliance comprising a liquid receiving entity (2) for storing liquid, a liquid port (3) for supplying liquid to the liquid receiving entity (2) and a coupling element (4) adapted to provide a liquid connection between the liquid receiving entity (2) and the liquid port (3), the coupling element (4) comprising a U-shape or essentially a U-shape with a first and a second leg portion (4.1, 4.2) and a curved portion (4.3) connecting the first and the second leg portion (4.1, 4.2), wherein the coupling element (4) comprises at least one flexible section and wherein at least one leg portion (4.1, 4.2) comprises stiffening means (5) for stiffening the leg portion (4.1, 4.2).

Claims

1. Household appliance comprising a liquid receiving entity for storing liquid, a liquid port for supplying liquid to the liquid receiving entity and a coupling element adapted to provide a liquid connection between the liquid receiving entity and the liquid port, the coupling element comprising a U-shape or essentially a U-shape with a first leg portion and a second leg portion and a curved portion connecting the first and the second leg portions, wherein the coupling element comprises at least one flexible section and wherein at least one said leg portion comprises stiffening means for stiffening the at least one said leg portion.

2. Household appliance according to claim 1, wherein said stiffening means comprise a rib structure.

3. Household appliance according to claim 2, wherein said rib structure extends in a flow direction along the coupling element.

4. Household appliance according to claim 2, wherein said rib structure extends downwardly from said coupling element.

5. Household appliance according to claim 1, wherein said stiffening means are adapted to define portions with increased rigidity.

6. Household appliance according to claim 1, wherein said stiffening means are adapted to define a certain inclination of the coupling element with respect to a horizontal plane.

7. Household appliance according to claim 1, wherein the coupling element is adapted to rest on the liquid receiving entity, wherein said stiffening means ensure a desired angle of inclination of the coupling element with respect to the an upper surface of the liquid receiving entity.

8. Household appliance according to claim 1, wherein the coupling element comprises a fixing portion adapted to interact with a corresponding mounting portion of the household appliance.

9. Household appliance according to claim 8, wherein the fixing portion radially protrudes from a leg portion of the coupling element.

10. Household appliance according to claim 1, wherein the curved portion comprises stiffening means, specifically a rib structure for increased rigidity of the curved portion.

11. Household appliance according to claim 1, wherein the coupling element comprises one or more connection portions adapted to fix the coupling element at the an upper surface of the liquid receiving entity.

12. Household appliance according to claim 1, wherein the at least one flexible section is adapted to provide a hinge portion and said stiffening means specify portions with increased rigidity thereby defining a certain deformation pattern when deforming the coupling element.

13. Household appliance according to claim 1, wherein the coupling element is adapted to recover into a desired shape after deformation.

14. Household appliance according to claim 1, wherein the liquid receiving entity is a liquid tank, specifically a water tank.

15. Household appliance according to claim 1, being configured as a steam oven.

16. A steam oven comprising a liquid port, a liquid tank and a coupling element that couples said liquid port with said tank in order to provide fluid communication therebetween; said coupling element comprising a U-shaped tube having a first leg, a second leg and a curved section therebetween; said first leg comprising a first coupling portion that connects the coupling element to the liquid port and said second leg comprising a second coupling portion that connects the coupling element to the liquid tank; at least a portion of said second leg being an elastically flexible section of said tube adapted to deflect on application of a deflecting force on installation of the coupling element into said steam oven in order to aid the installation thereof, and then to return to a resting, straight configuration after said deflecting force is removed following said installation; a first rib extending in a flow direction along a length of said first leg and adapted to stiffen said first leg in a straight configuration; said first leg resting on an upper surface of said liquid tank via said rib; said rib having a variable height such that said first leg resting on said upper surface of said tank slopes downward in the flow direction from said port toward said tank to ensure a smooth liquid flow in said flow direction and to minimize liquid stagnation in said tube during use.

17. The steam oven according to claim 16, said coupling element further comprising a collar extending radially from said first leg adjacent to said first coupling portion thereof, said first leg passing through an opening in a wall or panel of the steam oven; said collar having a larger diameter than said opening such that said collar acts as a stop abutting against a portion of said wall or panel surrounding said opening upon insertion of said first leg through said opening during said installation in order to fix a position of said first leg in said steam oven.

18. The steam oven according to claim 17, said first leg being longer than said second leg.

19. The steam oven according to claim 17, said flexible section of said tube comprising stiffening means that provide one or more portions thereof with increased rigidity relative to a remainder of said flexible section, thereby defining a certain deformation pattern of said flexible section when deforming the coupling element on installation thereof.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The various aspects of the invention, including its particular features and advantages, will be readily understood from the following detailed description and the accompanying drawings, in which:

[0025] FIG. 1 shows an example schematic view of a household appliance;

[0026] FIG. 2 shows an example perspective view of a coupling element;

[0027] FIG. 3 shows a liquid receiving entity connected with a coupling element;

[0028] FIG. 4 shows the liquid receiving entity and the coupling element arranged within the household appliance.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0029] The present invention will now be described more fully with reference to the accompanying drawings, in which example embodiments are shown. However, this invention should not be construed as limited to the embodiments set forth herein. Throughout the following description similar reference numerals have been used to denote similar elements, parts, items or features, when applicable.

[0030] FIG. 1 shows a schematic illustration of a household appliance 1 constituted by a steam oven. Such steam oven may comprise a liquid receiving entity 2, specifically a water tank and a liquid port 3 for providing liquid, specifically water to said liquid receiving entity 2. For fluidly coupling the liquid port 3 with the liquid receiving entity 2, a coupling element 4 is provided which may be formed by a pipe section.

[0031] FIGS. 2 to 4 show a coupling element 4 which is adapted to couple a liquid receiving entity 2, specifically a liquid or water tank with a liquid port 3. The liquid port 3 is configured to provide a liquid supply opening through which liquid, specifically water can be filled into the liquid receiving entity 2. The coupling element 4 is provided between the liquid port 3 and the liquid receiving entity 2. A first end of the coupling element 4 is coupled with the liquid port 3 and a second end of the coupling element 4 is coupled with the liquid receiving entity 2. Thereby liquid provided to the liquid port 3 can flow through the coupling element 4 into the liquid receiving entity 2. According to embodiments, the liquid port 3 may have a funnel shape.

[0032] More in detail, the coupling element 4 may comprise a U-shaped or essentially U-shaped pipe. The coupling element 4 may comprise a first and a second leg portion 4.1, 4.2 which may be arranged essentially in parallel to each other (in the assembled state) and a curved portion 4.3 connecting said leg portions 4.1, 4.2. The coupling element 4 comprises a first coupling portion 4a and a second coupling portion 4b. Said first coupling portion 4a may be adapted to connect the coupling element 4 with the liquid port 3. Said second coupling portion 4b may be adapted to connect the coupling element 4 with the liquid receiving entity 2. According to further embodiments, the first and the second leg portion 4.1, 4.2 may have a different length. Preferably, the first leg portion 4.1 may be configured longer than the second leg portion 4.2. Thereby, liquid can be supplied to the liquid port 3 at a position which is accessible at the peripheral of the household appliance 1 wherein the liquid receiving entity 2 is arranged in the interior of the appliance.

[0033] In order to be able to ease the manufacturing process of the household appliance 1, the coupling element 4 does not provide a direct connection between the liquid port 3 and the liquid receiving entity 2 but is adapted to form a U-shaped loop in the assembled state. In other words, the coupling element 4 provides excess length in order to be able to connect the coupling element 4 with the liquid receiving entity 2, arrange a covering entity, e.g. an upper hob portion above the liquid receiving entity 2 such that the liquid receiving entity 2 is covered and than coupling the liquid port 3with the first coupling portion 4a. During the assembly process, the coupling element 4 can be deformed, e.g. pulled out of the household appliance 1 and the coupling element 4 is adapted to revert into its original shape after finishing the assembly process.

[0034] In order to be able to deform the coupling element 4, the coupling element 4 comprises one or more flexible sections. For example, a flexible section may be the second coupling portion 4b and the second leg portion 4.2. The flexible section(s) act as hinges at which the coupling element 4 can be bent. Preferably, said bending may be only performed once in the lifetime, namely during assembling process or in case of service of the control panel which may comprise the liquid port 3.

[0035] In order to ensure that the coupling element 4 ends up with the desired shape and slope after the assembly process, stiffening means 5 are provided at the coupling element 4. Stiffening means 5 may be any reinforcements which can be used to increase the stability of the coupling element 4. Specifically, said stiffening means 5 may be arranged at straight portions of the coupling element 4, e.g. the first leg portion 4.1 in order to ensure that said straight portions stay straight or essentially straight when applying external forces to the coupling element 4 during the assembly process. However, such stiffening means 5 can also be provided at the second leg portion 4.2, respectively, the curved portion 4.3.

[0036] More in detail, said stiffening means 5 may comprise a rib structure 6. Said rib structure 6 may be a linear rib structure, i.e. the rib structure 6 may comprise a single web which extends along the flow direction FD of the liquid passing the coupling element 4. According to other embodiments, the rib structure 6 may comprise a spiral shape. Said rib structure 6 may preferably protrude at the bottom side of the coupling element 4. Said rib structure 6 may not only provide a mechanical reinforcement but may also provide a support for the coupling element 4. The rib structure 6 may comprise a free end portion 6.1 which is adapted to arrange the coupling element 4 in a slanted position in order to enable the liquid to flow from the first coupling portion 4a to the second coupling portion 4b. In other words, the rib structure 6 provides a desired slope of the segments of the coupling element 4 in order to ensure a smooth liquid flow and avoiding any kinks and unwanted dead corners which may lead to liquid stagnation.

[0037] Said stiffening means 5 may be integrally formed at the coupling element 4 or may be a separate unit which can be attached to the coupling element 4.

[0038] As best seen in FIGS. 2 and 3, the coupling element 4 further comprises a fixing portion 7 which forms a collar at the coupling element 4. Said fixing portion 7 may protrude radially from the coupling element 4. In the present embodiment, said fixing portion 7 is arranged at the first leg portion 4.1 close to the first coupling portion 4a. For example, the fixing portion 7 may comprise a disk-like shape. It should be noted that the fixing portion 7 can also comprise other shapes, e.g. a polygonal shape. Preferably, the fixing portion 7 may be coupled with said stiffening means 5, i.e. the stiffening means 5 may merge into the fixing portion 7.

[0039] As shown in FIG. 4, said fixing portion 7 may interact with a mounting portion 8 of the household appliance 1 in order to arrange the coupling element 4 at a certain position. For example, the fixing portion 7 may act as a seal or stop portion when the coupling element 4 is in its nominal position. More specifically, the mounting portion 8 may be a wall portion or panel of the household appliance comprising an opening which provides a passage for the coupling element 4 through the wall portion. Said fixing portion 7 may be flexible in order to be able to push or pull the fixing portion 7 through said opening during the assembling process. The fixing portion 7 may comprise larger dimensions, e.g. a larger diameter than said opening of the mounting portion 8 in order to provide a stop portion when abutting against the edge of the opening provided within the mounting portion 8.

[0040] According to embodiments, the coupling element 4 may further comprise a collar 9. Said collar 9 may be arranged at a certain distance to the fixing portion 7 at the first leg portion 4.1. For example, said rib structure 6 may extend between the fixing portion 7 and said further collar 9.Said collar 9 may provide a further stop portion which will limit the deformation of the coupling element 4 when abutting against the opening provided within the mounting portion 8.

[0041] FIG. 4 illustrates the coupling element 4 installed in a household appliance, e.g. a steam oven. The coupling element 4 provides a liquid connection between the liquid port 3 which is in the current embodiment arranged at or close to the control dashboard and the liquid receiving entity 2, e.g. a liquid tank. The liquid receiving entity 2 comprises at the upper side a connection portion, at which a free end of the coupling element 4 is mounted. The coupling element 4 extends with a U-shaped loop at the upper side of the liquid receiving entity 2. In other words, the coupling element 4 is at least partially supported by the upper surface of the liquid receiving entity 2. As already described before, the coupling element 4 may comprise contact surfaces, for example built by said rib structure 6 and/or other contact portions, which may provide a slanted arrangement of the coupling element 4 in order to ensure that liquid is steadily running from the liquid port 3 to the liquid receiving entity 2. In other words, based on the contact surfaces, a slope of the coupling element 4 relative to the upper surface of the liquid receiving entity 2 is achieved.

[0042] The liquid receiving entity 2 may further comprise fixation means for fixing the coupling element 4 at its upper portion. Said fixation means may be, for example, clips, pins etc.

[0043] The coupling element 4 may be a plastic or rubber pipe which may be a single piece pipe or may comprise multiple sections which are coupled with each other in order to build the coupling element 4.

[0044] It should be noted that the description and drawings merely illustrate the principles of the proposed household appliance. Those skilled in the art will be able to implement various arrangements that, although not explicitly described or shown herein, embody the principles of the invention.

LIST OF REFERENCE NUMERALS

[0045] 1 household appliance

[0046] 2 liquid receiving entity

[0047] 2.1 upper surface

[0048] 3 liquid port

[0049] 4 coupling element

[0050] 4a first coupling portion

[0051] 4b second coupling portion

[0052] 4.1 first leg portion

[0053] 4.2 second leg portion

[0054] 4.3 curved portion

[0055] 5 stiffening means

[0056] 6 rib structure

[0057] 6.1 free end portion

[0058] 7 fixing portion

[0059] 8 mounting portion

[0060] 9 collar

[0061] FD flow direction