Dish washing machine

By setting multiple support ribs and flanged sealing connections on the dishwasher base, the problem of impact damage to the water cup assembly during the sealing test was solved, achieving stability of the water cup assembly and sealing performance, extending the service life of the dishwasher and reducing the failure rate.

CN223886825UActive Publication Date: 2026-02-10PANASONIC APPLIANCES (CHINA) CO LTD
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Patent Information

Application Number
CN202520172163.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-02-10
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

During sealing tests, the dishwasher cup assembly is prone to damage from impacting the base due to deviation from the center of gravity, affecting sealing performance and stability.

Method used

Multiple support ribs are set on the base to form a polygonal support area. The center of gravity of the water cup assembly is located in this area and is sealed to the can body by a flange. The support ribs are integrally formed with the base, and elastic support rods or flexible parts are used to reduce the risk of collision.

Benefits of technology

This improved the stability and sealing performance of the water cup assembly, reduced the risk of damage during testing, extended the dishwasher's lifespan, and lowered the failure rate.

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Abstract

The utility model discloses a dish-washing machine, which belongs to the technical field of household appliances, solves the problem that the bottom end of a water cup component impacts on a base of the dish-washing machine in a sealing test process and is damaged, and adopts the technical scheme that the dish-washing machine mainly comprises a base and a tank body arranged on the upper side of the base, and the bottom of the tank body is connected with the water cup component. The water cup assembly comprises a cup body and a flange, the gravity center of the cup body deviates from the center of the flange, the flange is in sealed connection with the tank body through a sealing piece, the base is provided with a cavity for containing the cup body, the base is provided with a plurality of supporting ribs, and the projections of the supporting ribs on the base form a polygonal supporting area. The projection of the gravity center of the water cup assembly on the base is located in the supporting area, so that the situation that the bottom wall of the water cup assembly collides with the inner bottom wall of the cavity due to pressing of the water cup assembly is avoided. The stability of the water cup assembly in the testing process is mainly improved, and the possibility that the water cup assembly is damaged due to collision is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of household appliances, and in particular to a dishwasher. Background Technology

[0002] The water cup assembly of a dishwasher is an important component of the dishwasher's water system. It is connected to an external water supply device (such as a water softener or tap water pipe), spray arms, washing pump, and drain pump to realize the dishwasher's water intake, washing, and drainage functions. Its most important function is to be sealed and installed at the bottom of the dishwasher's inner cavity to collect water.

[0003] Prior art CN220442619U discloses a water cup sealing structure and a dishwasher, including a water cup assembly forming a limiting groove; an inner liner assembly extending into the limiting groove; and a sealing member adapted to the side wall of the limiting groove, abutting between the water cup assembly and the inner liner assembly. The sealing member includes a sealing member body and a protruding edge, the protruding edge being located at the opening of the limiting groove, abutting with the portion of the inner liner assembly located at the opening of the limiting groove, and the sealing member body abutting with the portion of the inner liner assembly extending into the limiting groove. By placing the protruding edge at the opening of the limiting groove, a sealing relationship is formed between the protruding edge and the inner liner assembly and the water cup assembly at the opening of the limiting groove, thereby preventing washing water from leaking through the connection gap between the water cup assembly and the inner liner assembly, and improving the connection sealing performance between the water cup assembly and the inner liner assembly.

[0004] After the dishwasher is manufactured, it is necessary to ensure the sealing performance between the cup assembly and the base. This requires a simulated sealing test based on the dishwasher's usage conditions. During the sealing test, the cup assembly is pressed down from directly above the center of the dishwasher base. Due to its structural design, the center of the cup assembly is offset from the center of the dishwasher base. During the sealing test, the cup assembly is deviated from its center of gravity due to the force, and the bottom of the cup assembly is prone to hitting the bottom wall of the base and being damaged. Utility Model Content

[0005] The purpose of this invention is to provide a dishwasher that solves the problem of damage to the bottom of the water cup assembly when it impacts the dishwasher base during the sealing test, improves the stability of the water cup assembly during the test, and reduces the possibility of damage to the water cup assembly due to collision.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dishwasher, comprising a base and a tank disposed on the upper side of the base, wherein a water cup assembly is connected to the bottom of the tank, the water cup assembly comprising a cup body and a flange, the center of gravity of the cup body being offset from the center of the flange, the flange being sealed to the tank body by a sealing element, the base having a cavity for accommodating the cup body, the base being provided with multiple support ribs, the projection of the multiple support ribs on the base forming a polygonal support area, the projection of the center of gravity of the water cup assembly on the base being located within the support area, so as to prevent the bottom wall of the water cup assembly from colliding with the bottom wall of the cavity due to pressure.

[0007] After adopting the above technical solution, this utility model has the following advantages: The dishwasher tank is set on the upper side of the base, so that the base supports the tank, improving the stability of the dishwasher tank and reducing the possibility of the tank tipping over and affecting the normal use of the dishwasher. A water cup assembly is set at the bottom of the tank, which washes the bowls, pots, etc. to be cleaned placed in the tank, ensuring the impact force and continuity of the water flow during washing. The water cup assembly is set in the form of a flange and a cup body. The flange facilitates the installation, support and sealing of the water cup assembly, while the cup body, as the core part of the water cup assembly, provides the power of the water flow for the dishwasher, ensuring the normal cleaning ability of the dishwasher. When installing the water cup assembly, the flange and the tank are sealed together by a sealing element, improving the sealing performance between the tank and the base, reducing the risk of water from the tank entering the base and causing damage to the components set in the base. This design reduces the dishwasher's failure rate and extends its lifespan. After installation, the cup assembly is housed within the base cavity, preventing it from being positioned above the lower side wall of the tank. This improves the overall layout of the dishwasher and reduces its overall size. Because the cup's center of gravity is offset from the center of the flange, support ribs are installed on the inner bottom wall of the base. These ribs support the cup assembly, and multiple ribs project onto the base to form a polygonal support area. The vertical projection of the cup assembly's center of gravity falls within this support area, further protecting it from damage during sealing performance testing. This reduces the possibility of the cup assembly deflecting due to pressure and colliding with the inner bottom wall of the base. The support ribs provide support for the water cup assembly, improving its stability and thus enhancing the overall stability of the dishwasher. This reduces the likelihood of the water cup assembly deflecting during user operation, which could affect the dishwasher's normal function. Furthermore, the support ribs restrict the water cup assembly and reduce the space for deformation of the seal, thereby improving the stability of the seal between the tank and the water cup assembly, and ultimately enhancing the stability of the seal's sealing performance.

[0008] Furthermore, the bottom surface of the flanging is higher than the bottom surface of the cup body, and the lengths of multiple support ribs are adapted to the bottom surface height of the cup body and the bottom surface height of the flanging to support the cup body and the flanging respectively.

[0009] With the foregoing technical solution, the bottom surface of the flanging is set higher than the bottom surface of the cup body. On the one hand, the flanging is provided to facilitate the installation and sealing of the cup body. Therefore, the thickness of the flanging does not need to be too high, only meeting the strength requirements of the dishwasher. On the other hand, the higher bottom surface setting reduces the thickness of the flanging, thereby reducing the material used for the flanging and further reducing the cost of the flanging, so as to reduce the cost of the water cup assembly as a whole; when there is a height difference between the bottom surface of the flanging and the bottom surface of the cup body, the lengths of multiple support ribs are adapted to the bottom surface height of the cup body and the bottom surface height of the flanging; so that during the test, both the flanging and the cup body can be supported, improving the stability of the water cup assembly during the test and reducing the possibility of the water cup assembly tipping over and colliding with the base.

[0010] Furthermore, the support rib includes a longer first support rib for supporting the flanging, and a reinforcing rib is provided between the first support rib and the base.

[0011] With the foregoing technical solution, a reinforcing rib is provided between the first support rib and the base. By means of the reinforcing rib, the strength of the first support rib is increased, thereby improving the stability after the first support rib supports and enhancing the support effect.

[0012] Furthermore, the first support rib includes a main body and an extension part integrally connected to the main body. The extension part and the main body form a "凵" - shaped cross - section for stable support.

[0013] With the foregoing technical solution, the first support rib is set as the main body and the extension part, and the main body and the extension form a "凵" - shaped shape, improving the strength of the first support rib, thereby enhancing the stability of the first support rib's support and further reducing the possibility of the water cup assembly tipping over and colliding with the base during the test.

[0014] Furthermore, an auxiliary support part is provided on one side of the first support rib. The auxiliary support part and the extension part are arranged on opposite sides of the main body and are stagger - arranged.

[0015] With the foregoing technical solution, an auxiliary support part is provided on one side of the support rib. The auxiliary support part and the extension part are distributed on both sides of the support rib, thereby enhancing the strength of the support rib on both sides, further improving the strength of the support rib, and reducing the possibility of the support rib cracking or breaking during the pressing test.

[0016] Furthermore, the distance between the top surface of the support rib and the bottom surface of the water cup assembly is D, and 2mm ≤ D ≤ 5mm.

[0017] By adopting the aforementioned technical solution, a distance is reserved between the top surface of the support rib and the bottom surface of the water cup assembly, which is limited to 2mm≦D. This ensures that the water cup assembly has a certain amount of room to move during the pressing process of the sealing performance test, thus ensuring the accuracy of the sealing performance test. The distance is limited to D≦5mm to avoid the reserved gap being too large, thereby reducing the possibility of the bottom of the water cup assembly colliding with the base of the dishwasher during the pressing process.

[0018] Furthermore, the supporting rib is integrally formed with the base.

[0019] By adopting the aforementioned technical solution, the support ribs and the base are integrally molded, which avoids the installation steps of the support ribs and saves the installation cost of the support ribs.

[0020] Furthermore, the supporting rib is an elastic support rod used for shock absorption along the height direction.

[0021] By adopting the aforementioned technical solution, the support rod is set as an elastic support rod, and shock absorption is provided along the height direction to reduce the possibility of the water cup assembly being damaged by collision with the support rib during the pressing process.

[0022] Furthermore, the upper section of the supporting rib is an elastic section that dampens vibration along the height direction.

[0023] By adopting the aforementioned technical solution, the upper section of the support rib is set as an elastic section and shock is reduced along the height direction, thereby reducing the possibility of collision between the water cup assembly and the support rib while ensuring the support strength of the support rib.

[0024] Furthermore, the upper end face of the supporting rib is provided with a flexible part for anti-collision and shock absorption.

[0025] By adopting the aforementioned technical solution, a flexible anti-collision and shock-absorbing component is provided on the upper end of the support rib, which reduces the possibility of the water cup assembly colliding with the upper end of the support rib when it is pressed down, improves the support strength of the support rib, and reduces the manufacturing difficulty of the support rib. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of a dishwasher according to the present invention;

[0028] Figure 2 This is an exploded view of the base and water cup assembly in this utility model;

[0029] Figure 3 This is a cross-sectional view of the base and water cup assembly in this utility model;

[0030] Figure 4 This utility model Figure 3 Enlarged view at point B in the middle;

[0031] Figure 5 This utility model Figure 2 Enlarged view of point A in the middle. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0033] The terms "first," "second," etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0034] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0035] like Figure 1 As shown, this utility model provides a dishwasher, including a base 2 and a tank 1 disposed on the upper side of the base 2, so that the tank 1 is supported by the base 2, reducing the possibility of the tank 1 tipping over and improving the stability of the tank 1. A water cup assembly 3 is connected to the bottom of the tank 1, and the water cup assembly 3 provides water flow and a certain impact force to the dishes and pots to be cleaned in the tank 1, ensuring that the dishes and pots can be cleaned. Figure 2As shown, the water cup assembly 3 includes a cup body 31 and a flange 32. The flange 32 facilitates the installation, support, and sealing of the cup body 31, improving the stability of the water cup assembly 3 after installation. Due to the different weights of the core components inside the cup body 31, the center of gravity of the cup body 31 deviates from the center of the flange 32. When installing the water cup assembly 3, the flange 32 is sealed to the container 1 through a sealing element 33, reducing the possibility of water from the container 1 entering the base 2 and causing damage to the components inside the base 2, thus reducing the failure rate of the dishwasher and increasing its service life. The base 2 has a cavity 21 to accommodate the cup body 31, which improves the rationality of the layout of various parts of the dishwasher and reduces the overall size of the dishwasher.

[0036] In this embodiment, as Figure 2 As shown, the base 2 is provided with multiple support ribs 4. The projection of the multiple support ribs 4 on the base 2 forms a polygonal support area. The projection of the center of gravity of the water cup assembly 3 on the base 2 is located within the support area, so that the bottom wall of the water cup assembly 3 will collide with the inner bottom wall of the cavity 21 due to pressure. Specifically, after the base 2 is provided with multiple support ribs 4, the multiple support ribs 4 are distributed so that the projection of the multiple support ribs 4 on the inner bottom wall of the base 2 forms a polygonal support area, and the projection of the center of gravity of the water cup assembly 3 is located within the support area. This ensures that the multiple support ribs 4 provide support for the water cup assembly 3, improves the support effect, and protects the water cup assembly 3, preventing the water cup assembly 3 from colliding with the base 2 and being damaged during the sealing performance test. After the support rib 4 is installed, it supports the water cup assembly 3, improves the stability of the water cup assembly 3, and thus improves the overall stability of the dishwasher, reducing the possibility that the water cup assembly 3 may deflect during user use and affect the normal use of the dishwasher. In addition, after the support rib 4 is installed, it restricts the water cup assembly 3 and reduces the space for deformation of the seal 33, thereby improving the stability of the seal 33 between the tank body 1 and the water cup assembly 3, and thus improving the stability of the sealing performance of the seal 33.

[0037] When setting up water cup component 3, such as Figure 3 and Figure 4 As shown, the water cup assembly 3 is configured with a flange 32 and a cup body 31. The flange 32 is designed to facilitate the installation and support of the cup body 31. Therefore, when the flange 32 is configured, its bottom surface is higher than the bottom surface of the cup body 31. This configuration results in a smaller thickness for the flange 32, reducing the amount of material required and thus lowering its cost. Following this embodiment, the lengths of the multiple support ribs 4 are adapted to the bottom heights of both the cup body 31 and the flange 32, allowing the support ribs 4 to support both the bottom surfaces of the flange 32 and the cup body 31, thereby improving the stability of the water cup assembly 3 after support. In this embodiment, further... Figure 4 As shown, the support rib 4 includes a first support rib 41. The first support rib 41 is used to support the bottom surface of the flanging 32. Since the bottom surface of the flanging 32 is higher than the bottom surface of the cup body 31, the first support rib 41 is longer than other support ribs 4. In such a case, in order to improve the support effect of the first support rib 41, as Figure 5 shown, a reinforcing rib 411 is provided between the first support rib 41 and the base 2. The strength of the first support rib 41 is improved through the reinforcing rib 411, thereby improving the stability of the support of the first support rib 41. In another embodiment, as Figure 5 shown, the first support rib 41 includes a main body 412 and an extension part 413 integrally connected to the main body 412. There are two extension parts 413. The two extension parts 413 are located on the same side of the main body 412. The two extension parts 413 and the main body 412 form a support section with a "U" - shaped cross - section shape. The setting of the main body 412 and the two extension parts 413 improves the strength of the first support rib 41, thereby improving the stability of the first support rib 41 to support the flanging 32.

[0038] To further improve the stability of the first support rib 41, as Figure 5 shown, an auxiliary support part 414 is provided on one side of the first support rib 41. The auxiliary support part 414 and the extension part 413 are arranged on opposite sides of the main body 412 and are offset. This makes the extension part 413 and the auxiliary support part 414 increase the strength of the first support rib 41 on both sides of the main body 412, and further improves the stability of the first support rib 41 to support the flanging 32.

[0039] In another embodiment, as Figure 4 shown, in order to avoid the influence of the support rib 4 on the sealing performance test of the water cup assembly 3, the distance between the top surface of the support rib 4 and the bottom surface of the water cup assembly 3 is D, where 2mm ≤ D ≤ 5mm, so that a certain distance is reserved between the top surface of the support rib 4 and the bottom surface of the water cup assembly 3. Specifically, limiting 2mm ≤ D ensures that the water cup assembly 3 has a certain movement space during the pressing process of the sealing performance test, thereby ensuring the accuracy of the sealing performance test. Limiting D ≤ 5mm avoids the reserved gap from being too large, thereby reducing the possibility that the bottom end of the water cup assembly 3 collides with the base 2 of the dishwasher during the pressing process.

[0040] When setting the support rib 4, in order to reduce the cost and installation difficulty of setting the support rib 4, the support rib 4 and the base 2 are integrally formed, avoiding the installation steps of the support rib 4, reducing the installation difficulty of the support rib 4, and saving the installation cost of the support rib 4.

[0041] The purpose of the support rib 4 is to prevent the water cup assembly 3 from tipping over and colliding with the base 2 due to a shift in its center of gravity when it is subjected to pressure, thus avoiding damage. While the support rib 4 prevents the water cup assembly 3 from tipping over, it also reduces the angle at which the water cup assembly 3 tilts. Because a distance is maintained between the top surface of the support rib 4 and the bottom surface of the water cup assembly 3, the water cup assembly 3 will still tilt to some extent when subjected to pressure, at which point it may collide with the support rib 4. To reduce the possibility of collision between the support rib 4 and the water cup assembly 3, as follows... Figure 5 As shown, the support rib 4 is an elastic support rod used for shock absorption along the height direction. The elastic support rod absorbs shock during the process of the water cup assembly 3 being pressed down along the height direction, reducing the possibility of the water cup assembly 3 being damaged by collision with the support rib 4 during the pressing process. Alternatively, the upper section of the support rib 4 can be an elastic section that absorbs shock along the height direction. In this embodiment, only the upper section of the support rib 4 is set as an elastic section and absorbs shock along the height direction, reducing the possibility of collision between the water cup assembly 3 and the support rib 4 while ensuring the support strength of the support rib 4. Alternatively, the upper end surface of the support rib 4 is provided with a flexible anti-collision and shock-absorbing part 415. Only the upper end surface of the support rib 4 is provided with an anti-collision and shock-absorbing flexible part, reducing the possibility of collision between the water cup assembly 3 and the upper end of the support rib 4 when it is pressed down, improving the support strength of the support rib 4, and reducing the manufacturing difficulty of the support rib 4.

[0042] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A dishwasher, comprising a base and a tank disposed on an upper side of the base, wherein a water cup assembly is connected to the bottom of the tank, the water cup assembly comprising a cup body and a flange, the center of gravity of the cup body being offset from the center of the flange, the flange being sealed to the tank body by a sealing element, and the base having a cavity for accommodating the cup body, characterized in that, The base is provided with multiple support ribs, and the projections of the multiple support ribs on the base form a polygonal support area. The projection of the center of gravity of the water cup assembly on the base is located within the support area to prevent the bottom wall of the water cup assembly from colliding with the inner bottom wall of the cavity when the water cup assembly is pressed.

2. The dishwasher according to claim 1, characterized in that, The bottom surface of the flanging is higher than the bottom surface of the cup body, and the lengths of the multiple support ribs are adapted to the bottom surface height of the cup body and the bottom surface height of the flanging to support the cup body and the flanging respectively.

3. The dishwasher according to claim 2, characterized in that, The support rib includes a longer first support rib for supporting the flanging, and a reinforcing rib is provided between the first support rib and the base.

4. The dishwasher according to claim 3, characterized in that, The first support rib includes a body and an extension portion integrally connected to the body. The extension portion and the body form a "U" - shaped cross - section for stable support.

5. The dishwasher according to claim 4, characterized in that, An auxiliary support portion is provided on one side of the first support rib. The auxiliary support portion and the extension portion are arranged on opposite sides of the body and are offset.

6. The dishwasher according to claim 1, characterized in that, The distance between the top surface of the support rib and the bottom surface of the water cup assembly is D, where 2mm ≤ D ≤ 5mm.

7. The dishwasher according to claim 1, characterized in that, The support rib and the base are integrally formed.

8. The dishwasher according to claim 1, characterized in that, The support rib is an elastic support rod for shock absorption in the height direction.

9. The dishwasher according to claim 1, characterized in that, The upper section of the support rib is an elastic section for shock absorption in the height direction.

10. The dishwasher according to claim 1, characterized in that, The upper end surface of the support rib is provided with a flexible portion for anti - collision and shock absorption.

Citation Information

Patent Citations

  • Water cup sealing structure and dish washing machine

    CN220442619U