Waterway system structure and dishwasher

Abstract

The utility model discloses a water system structure and dish washer. Water system structure includes washing pump, water cup subassembly and water distribution valve, and washing pump is equipped with water outlet, and water cup subassembly is connected with washing pump, and water cup subassembly is equipped with upper spray arm water outlet hole, middle spray arm water outlet hole, lower spray arm water outlet hole and auxiliary spray arm water outlet hole, and water distribution valve is connected with water outlet and water cup subassembly, and water distribution valve is equipped with including rotatable paddle, and paddle is equipped with at least one first through -hole and at least three second through -holes, and the projection of upper spray arm water outlet hole on paddle is located the movement path of first through -hole, and the projection of middle spray arm water outlet hole, lower spray arm water outlet hole and auxiliary spray arm water outlet hole on paddle all are located the movement path of second through -hole. In the water system structure, the dish washer can install the spray arm flexibly, and the application scene of the dish washer is expanded to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a water system structure and a dishwasher. Background Technology

[0002] In related technologies, dishwashers clean dishes by spraying water from spray arms during operation. Generally, dishwashers have three spray arms: a lower spray arm, a middle spray arm, and a top spray arm. However, this limits the application scenarios for dishwashers. Utility Model Content

[0003] This utility model provides a water system structure and a dishwasher to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides a water system structure for a dishwasher, the water system structure comprising:

[0005] A washing pump, wherein the washing pump is provided with a water outlet;

[0006] A water cup assembly is connected to the washing pump. The water cup assembly is provided with an upper spray arm water outlet, a middle spray arm water outlet, a lower spray arm water outlet, and an auxiliary spray arm water outlet.

[0007] The water distribution valve is connected to the water outlet and the water cup assembly. The water distribution valve includes a rotatable lever with at least one first through hole and at least three second through holes. The projection of the upper spray arm water outlet on the lever is located on the movement path of the first through hole. The projections of the middle spray arm water outlet, the lower spray arm water outlet, and the auxiliary spray arm water outlet on the lever are all located on the movement path of the second through holes.

[0008] In the above-mentioned water system structure, the positional relationship between the first through hole and the second through hole and the water outlet holes of the upper spray arm, the middle spray arm, the lower spray arm, and the auxiliary spray arm can realize different connection methods between the first through hole, the second through hole, and the four water outlet holes. This allows the dishwasher to flexibly install spray arms and expand the application scenarios of the dishwasher to a certain extent.

[0009] In some embodiments, the at least one first through hole is disposed near the rotation center of the lever, and the at least three second through holes are spaced apart on the outside of the first through hole along the circumferential direction of the lever.

[0010] The above-mentioned water system structure allows the first through hole and the second through hole to not interfere with each other, resulting in a compact structure.

[0011] In some implementations, the water system structure is designed to achieve at least the following operating modes:

[0012] A: The first through hole is connected to the water outlet hole of the upper spray arm, and the three second through holes are not connected to the water outlet hole of the auxiliary spray arm.

[0013] B: The first through hole is not connected to the water outlet of the upper spray arm, and one of the second through holes is connected to one of the water outlets of the middle spray arm, the lower spray arm, and the auxiliary spray arm.

[0014] In the above-mentioned water system structure, different connection methods between the first through hole, the second through hole and the water outlet hole can be used to flexibly adapt to different washing application scenarios.

[0015] In some implementations, the operating mode A includes the following operating modes:

[0016] A1: The first through hole is connected to the water outlet hole of the upper spray arm, and the three second through holes are not connected to the water outlet hole 132b of the middle spray arm, the water outlet hole of the lower spray arm, and the water outlet hole of the auxiliary spray arm, and / or;

[0017] A2: The first through hole is connected to the water outlet of the upper spray arm, wherein two of the second through holes are connected to the water outlet of the middle spray arm and the water outlet of the lower spray arm one by one, and the other second through hole is not connected to the water outlet of the auxiliary spray arm, and / or;

[0018] A3: The first through hole is connected to the water outlet of the upper spray arm, one of the second through holes is connected to the water outlet of the middle spray arm, and the other two second through holes are not connected to the water outlet of the lower spray arm and the water outlet of the auxiliary spray arm.

[0019] In the above water system structure, a suitable working mode can be selected according to different application washing scenarios.

[0020] In some implementations, the operating mode B includes the following operating modes:

[0021] B1: The first through hole is not connected to the water outlet of the upper spray arm, one of the second through holes is connected to the water outlet of the middle spray arm, and the other two second through holes and the water outlet of the lower spray arm and the water outlet of the auxiliary spray arm are not connected, and / or;

[0022] B2: The first through hole is not connected to the water outlet of the upper spray arm, one of the second through holes is connected to the water outlet of the auxiliary spray arm, and the other two second through holes are not connected to the water outlet of the lower spray arm and the water outlet of the middle spray arm, and / or;

[0023] B3: The first through hole is not connected to the water outlet of the upper spray arm, one of the second through holes is connected to the water outlet of the lower spray arm, and the other two second through holes are not connected to the water outlet of the middle spray arm and the water outlet of the auxiliary spray arm.

[0024] The above water system allows for the selection of appropriate operating modes based on different washing application scenarios.

[0025] In some embodiments, the working mode of the water system structure has a one-to-one mapping relationship with the rotation angle of the lever.

[0026] In the aforementioned water system, different operating modes can be achieved by controlling the rotation of the lever to different angles to control the structure of the water system.

[0027] In some embodiments, the water outlet includes a first water outlet and a second water outlet. The first water outlet is connected to a first through hole for supplying water to the water outlet of the upper spray arm and a second through hole for supplying water to the water outlet of the middle spray arm and the water outlet of the lower spray arm. The second water outlet is connected to a second through hole for supplying water to the water outlet of the auxiliary spray arm.

[0028] In the above water system structure, the water supply from the washing pump to the auxiliary spray arm outlet is designed to prevent interference with the water supply to the other three outlets.

[0029] In some embodiments, the water outlet of the upper spray arm is located close to the rotation axis of the paddle, while the water outlets of the middle spray arm, the lower spray arm, and the auxiliary spray arm are located away from the rotation axis of the paddle.

[0030] The above-mentioned water system structure allows for a more uniform distribution of water flow.

[0031] This utility model provides a dishwasher, which includes the water system structure described in any of the above embodiments.

[0032] In the aforementioned dishwasher, different connection methods can be achieved through the positional relationship between the first and second through holes and the water outlet holes of the upper spray arm, the middle spray arm, the lower spray arm, and the auxiliary spray arm. This allows for flexible installation of the spray arms in the dishwasher, thereby expanding the application scenarios of the dishwasher to a certain extent.

[0033] In some embodiments, the dishwasher includes a washing chamber, an upper spray arm, a middle spray arm, a lower spray arm, and an auxiliary spray arm. The upper spray arm, the middle spray arm, the lower spray arm, and the auxiliary spray arm are disposed within the washing chamber. The water outlets include water outlets for the upper spray arm, the middle spray arm, the lower spray arm, and the auxiliary spray arm. The upper spray arm communicates with its water outlet, the middle spray arm communicates with its water outlet, the lower spray arm communicates with its water outlet, and the auxiliary spray arm communicates with its water outlet. Alternatively,

[0034] The dishwasher includes a washing chamber, an upper spray arm, a middle spray arm, and a lower spray arm. The upper spray arm, the middle spray arm, and the lower spray arm are disposed within the washing chamber. The water outlets include an upper spray arm water outlet, a middle spray arm water outlet, a lower spray arm water outlet, and an auxiliary spray arm water outlet. The upper spray arm is connected to the upper spray arm water outlet, the middle spray arm is connected to the middle spray arm water outlet, the lower spray arm is connected to the lower spray arm water outlet, and the auxiliary spray arm water outlet is in a closed state.

[0035] The dishwashers described above allow them to flexibly adapt to different application scenarios.

[0036] Additional aspects and advantages of the embodiments of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0037] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0038] Figure 1 This is a partial structural schematic diagram of a dishwasher according to an embodiment of the present utility model;

[0039] Figure 2 and Figure 3 This is a schematic diagram of the water system structure according to an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the water distribution valve according to an embodiment of the present utility model;

[0041] Figure 5 This is an exploded view of the water distribution valve according to an embodiment of the present utility model;

[0042] Figures 6 to 11 This is a schematic diagram illustrating the connection between the through hole and the outlet hole in an embodiment of this utility model.

[0043] Figures 12 to 17 This is a diagram showing the relative positional relationship between the lever of the water distribution valve and the water cup assembly in an embodiment of this utility model.

[0044] Explanation of key component symbols:

[0045] Water system structure - 10, Washing pump - 11, Water outlet - 112, Return water pipe - 114, Water cup assembly - 13, Water outlet - 132, Upper spray arm water outlet - 132a, Middle spray arm water outlet - 132b, Lower spray arm water outlet - 132c, Auxiliary spray arm water outlet - 132d, Water collection tank - 134, Water distribution valve - 15, First through hole - 151a, Second through hole 151b, Chamber cover - 152, Connecting pipe - 152a, Motor - 153, Rotating shaft - 154, Paddle - 155, Star-shaped sealing ring - 156, O-ring - 157, Micro switch - 158, Drain pump - 17, Drain pipe - 171, Upper spray arm - 31, Middle spray arm - 33, Lower spray arm - 35, Auxiliary arm - 37, Washing chamber - 50, Dishwasher - 100. Detailed Implementation

[0046] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0047] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] This disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described herein. Of course, these are merely examples and are not intended to limit the present invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0051] Please see Figures 1 to 3 The water system structure 10 is used in the dishwasher 100. The water system structure 10 includes a washing pump 11, a water cup assembly 13, and a water distribution valve 15. The washing pump 11 has a water outlet 112. The water cup assembly 13 is connected to the washing pump 11 and has an upper spray arm water outlet, a middle spray arm water outlet, a lower spray arm water outlet, and an auxiliary spray arm water outlet. The water distribution valve 15 is connected to the water outlet 112 and the water cup assembly 13. The water distribution valve 15 includes a rotatable lever 155. The lever 155 has at least one first through hole 151a and at least three second through holes 151b. The projection of the upper spray arm water outlet 132a on the lever 155 is located on the movement path of the first through hole 151a. The projections of the middle spray arm water outlet 132b, the lower spray arm water outlet 132c, and the auxiliary spray arm water outlet 132d on the lever 155 are all located on the movement path of the second through holes 151b.

[0052] In the aforementioned water system structure 10, the positional relationship between the first through hole 151a, the second through hole 151b and the upper spray arm water outlet 132a, the middle spray arm water outlet 132b, the lower spray arm water outlet 132c and the auxiliary spray arm water outlet 132d can achieve different communication methods between the first through hole 151a, the second through hole 151b and the four water outlets 132, thereby allowing the dishwasher 100 to flexibly install spray arms and expand the application scenarios of the dishwasher 100 to a certain extent.

[0053] Specifically, a dishwasher 100 is a household appliance used to automatically clean and store tableware, kitchen utensils, and other items. Optionally, please refer to... Figure 1 The dishwasher 100 includes an inner tub with a washing chamber 50 for loading tableware inside. Multiple spray arms are provided in the washing chamber 50. During operation, the dishwasher 100 supplies water to the spray arms through a water system structure 10, so that the spray arms spray water to clean the tableware or kitchen utensils loaded in the washing chamber 50.

[0054] In related technologies, dishwashers are typically equipped with three main spray arms: a lower spray arm, a middle spray arm, and an upper spray arm. These three spray arms work together to spray and clean the items loaded in the washing chamber. However, this also limits the application scenarios of dishwashers to some extent, making it impossible to clean specific corner areas or oddly shaped tableware. Therefore, in order to achieve functional versatility, some dishwasher models, in addition to the three main spray arms mentioned above, are equipped with some detachable auxiliary spray arms to solve the above-mentioned problems.

[0055] During dishwasher operation, water in the spray arms is transported through pipes by a washing pump. In common designs, one water line can supply water to multiple spray arms simultaneously. However, because each spray arm requires a certain amount of water to ensure sufficient spray pressure and coverage, and the more spray arms there are, the greater the water demand, requiring more energy to maintain system operation and resulting in higher overall power consumption. Currently, a dishwasher with three main spray arms requires at least three independent water lines, with one water line supplying water to only one spray arm. However, when the dishwasher has auxiliary spray arms, three water lines may not be able to meet the one-to-one water supply requirement for each spray arm. In this situation, one solution is to have a water line supply water to two or more spray arms simultaneously, but this may result in insufficient water volume and pressure for each spray arm, affecting the cleaning effect. Another solution is to increase the number of water lines by connecting a new water pipe directly from the washing pump. However, each additional water pipe requires an additional switch to control the water flow, which not only increases the manufacturing cost of the dishwasher but also makes the internal structure of the dishwasher more complex, increasing the probability of malfunctions and the difficulty of repair.

[0056] In this embodiment of the utility model, please refer to Figure 2 and Figure 3The water system structure 10 includes a washing pump 11, a water cup assembly 13, and a water distribution valve 15, which is connected to both the washing pump 11 and the water cup assembly 13. The washing pump 11 has a water outlet 112, which is connected to the water outlet 132 of the water cup assembly 13 through the first through hole 151a and the second through hole 151b of the water distribution valve 15. This allows the washing pump 11 to pump water to the water cup assembly 13 through the water outlet 112 and the water distribution valve 15, and to supply water to the spray arms that are connected to each water outlet 132 through the water outlet 132. The spray arms then spray water to clean the tableware or kitchen utensils loaded in the washing chamber 50.

[0057] The water outlet 132 on the water cup assembly 13 includes an upper spray arm water outlet 132a, a middle spray arm water outlet 132b, a lower spray arm water outlet 132c, and an auxiliary spray arm water outlet 132d. The water distribution valve 15 is provided with at least one first through hole 151a and at least three second through holes 151b. The number of first through holes 151a, second through holes 151b, and water outlets 132 can be specifically limited according to actual conditions, and this utility model does not make a specific limitation in this regard.

[0058] Please combine Figure 5 The water distribution valve 15 includes a motor 153, a rotating shaft 154, and a lever 155. A first through hole 151a and a second through hole 151b are provided on the lever 155. The rotor of the motor 153 is connected to the lever 155 through the rotating shaft 154, so that when the motor 153 is working, it transmits the rotational force to the lever 155 through the rotating shaft 154, so that the motor 153 can drive the lever 155 to rotate relative to the water cup assembly 13.

[0059] Please combine Figures 12 to 17 The projection of the water outlet 132a of the upper spray arm on the lever 155 is located on the movement path of the first through hole 151a. This allows the first through hole 151a to move along a circumferential path when the motor 153 drives the lever 155 to rotate relative to the water cup assembly 13, connecting or not connecting with the water outlet 132a of the upper spray arm. In other words, the first through hole 151a can independently control the opening or closing of the water outlet 132a of the upper spray arm, and can be used for single-channel control.

[0060] The projections of the water outlet holes 132b, 132c, and 132d of the middle spray arm, lower spray arm, and auxiliary spray arm on the lever 155 are all located on the movement path of the second through hole 151b. This allows the three second through holes 151b to move along a circumferential path when the motor 153 drives the lever 155 to rotate relative to the water cup assembly. They can be connected to or not connected to at least one of the water outlet holes 132b, 132c, and 132d of the middle spray arm, lower spray arm, and auxiliary spray arm on the lever 155. In other words, the second through hole 151b can control the opening or closing of the water outlet holes 132b, 132c, and 132d of the middle spray arm, lower spray arm, and auxiliary spray arm, and can be used for multi-channel control.

[0061] Therefore, by considering the positional relationship between the first through hole 151a, the second through hole 151b, and the water outlet holes 132a, 132b, 132c, and 132d of the upper spray arm, the middle spray arm, and the auxiliary spray arm, different communication methods can be achieved between the first through hole 151a, the second through hole 151b, and the four water outlet holes 132, so as to realize the combined application of multiple spray arms. This allows the dishwasher 100 to flexibly install spray arms and expands the application scenarios of the dishwasher 100 to a certain extent.

[0062] Optionally, the dishwasher 100 includes a controller electrically connected to a motor 153 of the water distribution valve 15. The controller can control the motor 153 to operate and drive the paddle 155 to rotate relative to the water cup assembly 13, so as to achieve different communication methods between the first through hole 151a and the second through hole 151b and the water outlet 132.

[0063] Optionally, please combine Figure 3 and Figure 5 The water distribution valve 15 includes a cavity cover 152, which serves as an external protective layer for the internal components of the water distribution valve 15. A connecting pipe 152a is provided on the cavity cover 152, through which the water distribution valve 15 is connected to the outlet 112 of the washing pump 11. This allows the washing pump 11 to pump water through the outlet 112 and the connecting pipe 152a to the cavity cover 152, thereby supplying water to the outlet 132, which communicates with the through hole 151 on the lever 155. Optionally, the water distribution valve 15 also includes a star-shaped sealing ring 156 and an O-ring 157. The star-shaped sealing ring 156 is located between the lever 155 and the motor 153, sealing the gap between them. The O-ring 157 is located between the water cup assembly 13 and the lever 155, sealing the gap between the cavity cover and the water cup assembly 13 to prevent water leakage.

[0064] It is understood that different connection methods can be specifically limited according to the actual application scenario, and this utility model does not make any specific limitations in this regard.

[0065] In one embodiment, a water outlet 132 can be connected to a corresponding spray arm. In another embodiment, a water outlet 132 can be connected to two or more corresponding spray arms, and the present invention does not specifically limit this.

[0066] It is understood that the control program corresponding to the water distribution valve 15 for the above-mentioned connection method can be pre-stored in the dishwasher 100. The controller can control the operation of the motor 153 according to the control program to achieve different connection methods.

[0067] In some embodiments, the first through hole 151a is located near the rotation center of the lever 155, and three second through holes 151b are spaced apart on the outside of the first through hole 151a along the circumferential direction of the lever 155.

[0068] In this way, the first through hole 151a and the second through hole 151b do not interfere with each other, resulting in a compact structure.

[0069] Specifically, please combine Figure 4 The rotation center of the lever 155 is A. At least one first through hole 151a is located near the rotation center A of the lever 155, and at least three second through holes 151b are spaced apart on the outer side of the first through hole 151a along the circumferential direction of the lever 155. When the motor 153 of the water distribution valve 15 drives the lever 155 to rotate relative to the water cup assembly 13 around the rotation center A, at least one first through hole 151a rotates around the rotation center A, with a small radius circle as its trajectory; at least three second through holes 151b also rotate around the rotation center A, with a large radius circle as their trajectory. Therefore, the first through hole 151a and the second through hole 151b do not interfere with each other, resulting in a compact structure.

[0070] In some implementations, the water system structure 10 is used to achieve at least the following operating modes:

[0071] A: The first through hole 151a is connected to the water outlet hole 132a of the upper spray arm, and the three second through holes 151b are not connected to the water outlet hole 132d of the auxiliary spray arm.

[0072] B: The first through hole 151a is not connected to the water outlet hole 132a of the upper spray arm, and one of the second through holes 151b is connected to one of the water outlet holes 132b of the middle spray arm, the water outlet hole 132c of the lower spray arm, and the water outlet hole 132d of the auxiliary spray arm.

[0073] In this way, different application washing scenarios can be flexibly adapted through different connection methods between the first through hole 151a, the second through hole 151b and the water outlet hole 132.

[0074] Specifically, please combine Figure 4The diverter valve 15 has a first through hole 151a and three second through holes 151b on its lever 155. In some embodiments, the controller can control the water system structure 10 to execute working mode A. The controller can control the motor 153 to drive the lever 155 to rotate relative to the water cup assembly 13, so that the first through hole 151a is connected to the upper spray arm outlet hole 132a, and the three second through holes 151b are not connected to the auxiliary spray arm outlet hole 132d. Therefore, the controller can control the washing pump 11 to pump water to the upper spray arm outlet hole 132a through the outlet 112 to supply water to the spray arm connected to the upper spray arm outlet hole 132a. At the same time, the auxiliary spray arm outlet hole 132d is closed and cannot supply water to the spray arm connected to the auxiliary spray arm outlet hole 132d, thus eliminating the need for applications where water is not supplied from the auxiliary spray arm outlet hole 132d.

[0075] In some embodiments, the controller can control the water system structure 10 to perform operating mode B. The controller can control the motor 153 to drive the paddle 155 to rotate relative to the water cup assembly 13, such that the first through hole 151a is not connected to the upper spray arm outlet hole 132a, and one of the second through holes 151b is connected to one of the middle spray arm outlet hole 132b, the lower spray arm outlet hole 132c, and the auxiliary spray arm outlet hole 132d. Therefore, the controller can control the washing pump 11 to pump water through the outlet 112 to the middle spray arm outlet hole 132b and the lower spray arm outlet hole 132d. One of the water holes 132c and auxiliary spray arm water outlet holes 132d is connected to a second through hole 151b to supply water to the spray arm connected to the water outlet hole 132. At the same time, the upper spray arm water outlet hole 132a is closed and cannot supply water to the spray arm connected to the upper spray arm water outlet hole 132a. Thus, the water path connection of the middle spray arm water outlet hole 132b, the lower spray arm water outlet hole 132c, and the auxiliary spray arm water outlet hole 132d can be controlled independently to adapt to low water consumption washing application scenarios.

[0076] In some implementations, operating mode A includes the following operating modes:

[0077] A1: The first through hole 151a is connected to the water outlet hole 132a of the upper spray arm, and the three second through holes 151b are not connected to the water outlet hole 132b of the middle spray arm, the water outlet hole 132c of the lower spray arm and the water outlet hole 132d of the auxiliary spray arm, and / or;

[0078] A2: The first through hole 151a is connected to the water outlet hole 132a of the upper spray arm, wherein two second through holes 151b are connected to the water outlet hole 132b of the middle spray arm and the water outlet hole 132c of the lower spray arm, and the other second through hole 151b is not connected to the water outlet hole 132d of the auxiliary spray arm, and / or;

[0079] A3: The first through hole 151a is connected to the water outlet hole 132a of the upper spray arm, one of the second through holes 121b is connected to the water outlet hole 132b of the middle spray arm, and the other two second through holes 151b are not connected to the water outlet hole 132c of the lower spray arm and the water outlet hole 132d of the auxiliary spray arm.

[0080] In this way, the appropriate working mode can be selected according to different application washing scenarios.

[0081] Optionally, the controller can control the water system structure 10 to execute any one of operating modes A1, A2, and A3. Optionally, the controller can control the water system structure 10 to execute any two of operating modes A1, A2, and A3. Optionally, the controller can control the water system structure 10 to execute operating modes A1, A2, and A3.

[0082] In one implementation, the controller can control the water system structure 10 to execute operating mode A1. Please refer to... Figure 8 and Figure 14 The controller can control the motor 153 to drive the paddle 155 to rotate relative to the water cup assembly 13, so that the first through hole 151a is connected to the upper spray arm water outlet 132a, and the three second through holes 151b are not connected to the middle spray arm water outlet 132b, the lower spray arm water outlet 132c and the auxiliary spray arm water outlet 132d. Thus, the controller can control the washing pump 11 to pump water to the upper spray arm water outlet 132a through the water outlet 112, so as to simultaneously supply water to the spray arm connected to the upper spray arm water outlet 132a, and the middle spray arm water outlet 132b, the lower spray arm water outlet 132c and the auxiliary spray arm water outlet 132d are in a closed state.

[0083] In one implementation, the controller can control the water system structure 10 to execute operating mode A2. Please refer to... Figure 7 and Figure 13 The controller can control the motor 153 to drive the paddle 155 to rotate relative to the water cup assembly 13, so that the first through hole 151a is connected to the upper spray arm water outlet 132a, and the two second through holes 151b are connected to the middle spray arm water outlet 132b and the lower spray arm water outlet 132c one by one. The other second through hole 151b is not connected to the auxiliary spray arm water outlet 132d. Thus, the controller can control the washing pump 11 to pump water through the water outlet 112 to the upper spray arm water outlet 132a, the middle spray arm water outlet 132b and the lower spray arm water outlet 132c, so as to simultaneously supply water to the spray arms connected to the upper spray arm water outlet 132a, the middle spray arm water outlet 132b and the lower spray arm water outlet 132c, and the auxiliary spray arm water outlet 132d is in a non-watering state.

[0084] In one embodiment, the controller can control the water system structure 10 to execute operating mode A3. The controller can also control the water system structure 10 to execute operating mode A2. Please refer to... Figure 9 and Figure 15 The controller can control the motor 153 to drive the paddle 155 to rotate relative to the water cup assembly 13, so that the first through hole 151a is connected to the upper spray arm water outlet 132a, and one of the second through holes 151b is connected to the middle spray arm water outlet 132b. The other two second through holes 151b are not connected to the lower spray arm water outlet 132c and the auxiliary spray arm water outlet 132d. Thus, the controller can control the washing pump 11 to pump water through the water outlet 112 to the upper spray arm water outlet 132a and the middle spray arm water outlet 132b, so as to simultaneously supply water to the spray arms connected to the upper spray arm water outlet 132a and the middle spray arm water outlet 132b, and the lower spray arm water outlet 132c and the auxiliary spray arm water outlet 132d are in a closed state.

[0085] In some implementations, operating mode B includes the following operating modes:

[0086] B1: The first through hole 151a is not connected to the water outlet hole 132a of the upper spray arm, one of the second through holes 151b is connected to the water outlet hole 132b of the middle spray arm, and the other two second through holes 151b, the water outlet hole 132c of the lower spray arm, and the water outlet hole 132d of the auxiliary spray arm are not connected, and / or;

[0087] B2: The first through hole 151a is not connected to the water outlet hole 132a of the upper spray arm, one of the second through holes 151b is connected to the water outlet hole 132d of the auxiliary spray arm, and the other two second through holes 151b are not connected to the water outlet hole 132c of the lower spray arm and the water outlet hole 132b of the middle spray arm, and / or;

[0088] B3: The first through hole 151a is not connected to the water outlet hole 132a of the upper spray arm. One of the second through holes 151b is connected to the water outlet hole 132c of the lower spray arm. The other two second through holes are not connected to the water outlet hole 132b of the middle spray arm and the water outlet hole 132d of the auxiliary spray arm.

[0089] In this way, the appropriate working mode can be selected according to different application washing scenarios.

[0090] Optionally, the controller can control the water system structure 10 to execute one of the following operating modes: B1, B2, and B3. Alternatively, the controller can control the water system structure 10 to execute two of the following operating modes: B1, B2, and B3. Alternatively, the controller can control the water system structure 10 to execute one of the following operating modes: B1, B2, and B3.

[0091] In one implementation, the controller can control the water system structure 10 to execute operating mode B1. Please refer to... Figure 6 and Figure 12 The controller can control the motor 153 to drive the paddle 155 to rotate relative to the water cup assembly 13, so that one second through hole 151b is connected to the water outlet 132b of the middle spray arm, the first through hole 151a is not connected to the water outlet 132a of the upper spray arm, and the other two second through holes 151b are not connected to the water outlet 132c of the lower spray arm and the water outlet 132d of the auxiliary spray arm. Thus, the controller can control the washing pump 11 to pump water to the water outlet 132b of the middle spray arm through the water outlet 112 to supply water to the spray arm connected to the water outlet 132b, and the water outlets 132a, 132c, and 132d of the upper spray arm, lower spray arm, and auxiliary spray arm are in a closed state.

[0092] In one implementation, the controller can control the water system structure 10 to execute operating mode B2. Please refer to... Figure 11 and Figure 17 The controller can control the motor 153 to drive the paddle 155 to rotate relative to the water cup assembly 13, so that one second through hole 151b is connected to the auxiliary spray arm water outlet 132d, the first through hole 151a is not connected to the upper spray arm water outlet 132a, and the other two second through holes 151b are not connected to the middle spray arm water outlet 132b and the lower spray arm water outlet 132c. Thus, the controller can control the washing pump 11 to pump water to the middle spray arm water outlet 132b through the water outlet 112 to supply water to the spray arm connected to the auxiliary spray arm water outlet 132d, and the upper spray arm water outlet 132a, the middle spray arm water outlet 132b and the lower spray arm water outlet 132c are in the closed state.

[0093] In one implementation, the controller can control the water system structure 10 to execute operating mode B3. (Please refer to...) Figure 10 and Figure 16 The controller can control the motor 153 to drive the paddle 155 to rotate relative to the water cup assembly 13, so that one second through hole 151b is connected to the lower spray arm water outlet 132c, the first through hole 151a is not connected to the upper spray arm water outlet 132a, and the other two second through holes 151b are not connected to the middle spray arm water outlet 132b and the auxiliary spray arm water outlet 132d. Thus, the controller can control the washing pump 11 to pump water to the middle spray arm water outlet 132b through the water outlet 112 to supply water to the spray arm connected to the lower spray arm water outlet 132c, and the upper spray arm water outlet 132a, the middle spray arm water outlet 132b and the auxiliary spray arm water outlet 132d are in a closed state.

[0094] In some implementations, the working mode of the water system structure 10 has a one-to-one mapping relationship with the rotation angle of the lever 155.

[0095] In this way, different working modes can be achieved by controlling the rotation of the lever 155 to different angles to control the water system structure 10.

[0096] Specifically, the operating mode of the water system structure 10 and the rotation angle of the lever 155 have a one-to-one mapping relationship. Optionally, this mapping relationship can be pre-stored and calibrated in the controller. Please refer to... Figure 5 The diversion valve 15 also includes a microswitch 158 for initial positioning, enabling precise reset and reliable operation of the diversion valve 15 in different connection modes. When the lever 155 of the diversion valve 15 is in the initial position, the dishwasher 100 is not operating. When the controller controls the lever 155 of the diversion valve 15 to rotate to the initial position, it triggers the microswitch to output an initial signal, which is then fed back to the controller. The controller then marks the current position as a reference point (0 degrees).

[0097] When the dishwasher 100 starts running, the controller controls the lever 155 to rotate from its initial position, so that the first through hole 151a and the second through hole 151b on the lever 155 have different communication methods with the water outlet hole 132 on the water cup assembly 13, thereby enabling the dishwasher 100 to achieve different operating modes. Optionally, the controller can control the lever 155 to rotate counterclockwise or counterclockwise relative to the water cup assembly 13 from its initial position, and the direction and angle of rotation can be specifically limited according to the actual situation.

[0098] In one implementation, please refer to Figure 6 and Figure 12 The controller can control the motor 153 to drive the paddle 155 to rotate counterclockwise by 15° from the initial position, thereby controlling the controllable water system structure 10 to execute working mode B1. This ensures that one second through hole 151b is connected to the middle spray arm water outlet 132b, the first through hole 151a is not connected to the upper spray arm water outlet 132a, and the other two second through holes 151b are not connected to the lower spray arm water outlet 132c and the auxiliary spray arm water outlet 132d. Thus, the controller can control the washing pump 11 to pump water through the outlet 112 to the middle spray arm water outlet 132b to supply water to the spray arm connected to the middle spray arm water outlet 132b, while the upper spray arm water outlet 132a, the lower spray arm water outlet 132c, and the auxiliary spray arm water outlet 132d are in a closed state.

[0099] In one implementation, please refer to Figure 7 and Figure 13The controller can control the motor 153 to drive the paddle 155 to rotate counterclockwise by 108° from the initial position, thereby controlling the water system structure 10 to execute working mode A2. This ensures that the first through hole 151a is connected to the upper spray arm outlet 132a, and the two second through holes 151b are connected to the middle spray arm outlet 132b and the lower spray arm outlet 132c respectively. The other second through hole 151b is not connected to the auxiliary spray arm outlet 132d. Therefore, the controller can control the washing pump 11 to pump water through the outlet 112 to the upper spray arm outlet 132a, the middle spray arm outlet 132b, and the lower spray arm outlet 132c, simultaneously supplying water to the spray arms connected to these outlets, while keeping the auxiliary spray arm outlet 132d closed.

[0100] In one implementation, please refer to Figure 8 and Figure 14 The controller can control the motor 153 to drive the paddle 155 to rotate counterclockwise by 139° from the initial position, thereby controlling the water system structure 10 to execute working mode A2. This ensures that the first through hole 151a is connected to the upper spray arm water outlet 132a, and that the three second through holes 151b are not connected to the middle spray arm water outlet 132b, the lower spray arm water outlet 132c, and the auxiliary spray arm water outlet 132d. This allows the controller to control the washing pump 11 to pump water through the outlet 112 to the upper spray arm water outlet 132a, simultaneously supplying water to the spray arm connected to the upper spray arm water outlet 132a, while keeping the middle spray arm water outlet 132b, the lower spray arm water outlet 132c, and the auxiliary spray arm water outlet 132d closed.

[0101] In one implementation, please refer to Figure 9 and Figure 15 The controller can control the motor 153 to drive the paddle 155 to rotate counterclockwise by 168° from the initial position, thereby controlling the water system structure 10 to execute working mode A2. This ensures that the first through hole 151a is connected to the upper spray arm outlet 132a, and one of the second through holes 151b is connected to the middle spray arm outlet 132b. The other two second through holes 151b are not connected to the lower spray arm outlet 132c and the auxiliary spray arm outlet 132d. Therefore, the controller can control the washing pump 11 to pump water through the outlet 112 to the upper spray arm outlet 132a and the middle spray arm outlet 132b, simultaneously supplying water to the spray arms connected to the upper and middle spray arm outlets, while keeping the lower spray arm outlet 132c and the auxiliary spray arm outlet 132d closed.

[0102] In one implementation, please refer to Figure 10 and Figure 15The controller can control the motor 153 to drive the paddle 155 to rotate 248° counterclockwise from the initial position, thereby controlling the water system structure 10 to execute working mode B2. This ensures that one second through hole 151b is connected to the auxiliary spray arm water outlet 132d, the first through hole 151a is not connected to the upper spray arm water outlet 132a, and the other two second through holes 151b are not connected to the middle spray arm water outlet 132b and the lower spray arm water outlet 132c. Thus, the controller can control the washing pump 11 to pump water through the outlet 112 to the middle spray arm water outlet 132b to supply water to the spray arm connected to the auxiliary spray arm water outlet 132d, and the upper spray arm water outlet 132a, middle spray arm water outlet 132b, and lower spray arm water outlet 132c are in a closed state.

[0103] In one implementation, please refer to Figure 11 and Figure 17 The controller can control the motor 153 to drive the paddle 155 to rotate 290° counterclockwise from the initial position, thereby controlling the water system structure 10 to execute working mode B3. This ensures that one second through hole 151b is connected to the lower spray arm outlet hole 132c, the first through hole 151a is not connected to the upper spray arm outlet hole 132a, and the other two second through holes 151b are not connected to the middle spray arm outlet hole 132b and the auxiliary spray arm outlet hole 132d. Thus, the controller can control the washing pump 11 to pump water through the outlet 112 to the middle spray arm outlet hole 132b to supply water to the spray arm connected to the lower spray arm outlet hole 132c, while the upper spray arm outlet hole 132a, the middle spray arm outlet hole 132b, and the auxiliary spray arm outlet hole 132d are in a closed state.

[0104] In some embodiments, the water outlet 112 includes a first water outlet and a second water outlet. The first water outlet is connected to a first through hole 151a that supplies water to the upward spray arm water outlet 132a and a second through hole 151b that supplies water to the middle spray arm water outlet 132b and the lower spray arm water outlet 132c. The second water outlet is connected to a second through hole 151b that supplies water to the auxiliary spray arm water outlet 132d.

[0105] In this way, the water supply from the washing pump 11 to the auxiliary spray arm outlet 132d will not interfere with the water supply to the other three outlets 132.

[0106] Specifically, in some embodiments, the washing pump 11 is provided with a first water outlet and a second water outlet. Optionally, during the operation of the dishwasher 100, the controller can control the first water outlet and the second water outlet to open simultaneously, open individually, or close simultaneously, so that the controller can control the washing pump 11 to supply water to the water outlet 132 on the water cup assembly 13 through one of the first water outlet and the second water outlet or through the first water outlet and the second water outlet simultaneously.

[0107] The first water outlet is connected to a first through hole 151a supplying water to the upward spray arm water outlet 132a, and a second through hole 151b supplying water to the middle spray arm water outlet 132b and the lower spray arm water outlet 132c. The controller can control the washing pump 11 to supply water to the spray arm water outlet 132a, the middle spray arm water outlet 132b, and the lower spray arm water outlet 132c through the first water outlet. The second water outlet is connected to a through hole 151 supplying water to the auxiliary spray arm water outlet 132d. The device can control the washing pump 11 to supply water to the auxiliary spray arm outlet 132d through the second outlet, so that the washing pump 11 can supply water to the auxiliary spray arm outlet 132d and the other three outlets 132 through two different outlets 112 respectively. This ensures that the water supply from the washing pump 11 to the auxiliary spray arm outlet 132d does not interfere with the water supply to the other three outlets 132, thereby optimizing the water and energy waste caused by the simultaneous operation of these spray arms to a certain extent.

[0108] In some embodiments, the water outlet 132a of the upper spray arm is located close to the rotation axis of the lever 155, while the water outlet 132b of the middle spray arm, the water outlet 132c of the lower spray arm, and the water outlet 132d of the auxiliary spray arm are located away from the rotation axis of the lever 155.

[0109] This allows the water flow to be distributed more evenly.

[0110] Specifically, please combine Figure 5 The rotation axis of the paddle 155 is L. The motor 153 can drive the paddle 155 to rotate around the rotation axis L. The rotation center A of the paddle 155 is located on the rotation axis L. Please refer to... Figure 10 The water outlet 132a of the upper spray arm is set close to the rotation axis of the lever 155, while the water outlet 132c of the lower spray arm and the water outlet 132d of the auxiliary spray arm are set away from the rotation axis of the lever 155. This allows for a more uniform impact and dispersion of the water flow on the water cup assembly 13 during the rotation of the lever 155.

[0111] Please see Figure 1 This utility model provides a dishwasher 100, which includes the water system structure 10 of any of the above embodiments.

[0112] In the dishwasher 100 described above, the positional relationship between the first through hole 151a, the second through hole 151b and the upper spray arm water outlet 132a, the middle spray arm water outlet 132b, the lower spray arm water outlet 132c and the auxiliary spray arm water outlet 132d can achieve different communication methods between the first through hole 151a, the second through hole 151b and the four water outlets 132, thereby allowing the dishwasher 100 to flexibly install spray arms and expand the application scenarios of the dishwasher 100 to a certain extent.

[0113] Specifically, in Figures 1 to 5 In this embodiment, the water cup assembly 13 is provided with an upper spray arm water outlet 132a, a middle spray arm water outlet 132b, a lower spray arm water outlet 132c, and an auxiliary spray arm water outlet 132d. The lever 155 of the water distribution valve 15 is provided with a first through hole 151a and three second through holes 151b. The projection of the upper spray arm water outlet 132a on the lever 155 is located on the movement path of the first through hole 151a, and the projections of the middle spray arm water outlet 132b, the lower spray arm water outlet 132c, and the auxiliary spray arm water outlet 132d on the lever 155 are all located on the movement path of the second through holes 151b.

[0114] Therefore, the controller can control the motor 153 of the water distribution valve 15 to work so as to drive the paddle 155 to rotate relative to the water cup assembly 13 through the rotating shaft 154, so that the first through hole 151a and the second through hole 151b can achieve different communication methods with the water outlet hole 132, thereby allowing the dishwasher 100 to flexibly install the spray arm and expand the application scenarios of the dishwasher 100 to a certain extent.

[0115] In some implementation methods, please refer to Figure 2 The water cup assembly 13 is also equipped with a water collection tank 134 for collecting water in the washing chamber 50 during the operation of the dishwasher 100. The washing pump 11 is equipped with a return water pipe 114, which is connected to the water collection tank 134, so that the water collected and filtered in the water collection tank 134 can be pumped back to the washing pump 11 through the return water pipe 114. In one embodiment, when the dishwasher 100 starts working, an external water source supplies water to the water cup assembly 13, so that the water from the outlet 112 is delivered to the spray arm through the water distribution valve 15 and the washing pump 11. The spray arm injects water into the washing chamber 50 at a certain pressure and angle to wash and clean the items in the washing chamber 50. The cleaned water flows back into the water collection tank 134 of the water cup assembly 13. The washing pump 11 draws the water collected in the water collection tank 134 back through the return water pipe 114, and then delivers it to the spray arm again through the water outlet 132 to continue washing the dishes. This process is repeated, with water continuously circulating between the water collection tank 134, the washing pump 11, and the washing chamber 50 to achieve cyclic washing. Therefore, most of the water can be reused, which can significantly reduce water consumption and unnecessary energy consumption, thus achieving energy-saving effects to a certain extent.

[0116] Optionally, a filtration device, including but not limited to a filter screen or filter element, can be installed in the return water pipe 114 or the water collection tank 134 to intercept and remove impurities in the cleaned water, so that the water is initially purified. This allows the water filtered through the return water pipe 114 to enter the washing pump 11 for circulating washing, which can improve the cleaning effect to a certain extent.

[0117] Please combine Figure 2The dishwasher 100 also includes a drain pump 17, which is connected to the water collection tank 134 of the water cup assembly 13 via a drain pipe 171. This allows water collected in the water collection tank 134 to be transported to the drain pump 17 via the drain pipe 171 and discharged outside the dishwasher 100 via the drain pump 17. Optionally, the controller is electrically connected to the drain pump 17. In one embodiment, when the dishwasher 100 finishes washing, the controller controls the washing pump 11 to stop working, thus disconnecting the return pipe 114 from the water collection tank 134. Simultaneously, the controller controls the drain pump 17 to operate, transporting wastewater from the water collection tank 134 to the drain pump 17 via the drain pipe 171 and discharging it outside the dishwasher 100 via the drain pump 17.

[0118] Understandably, during the washing process of the dishwasher 100, the dishwasher 100 controls the drain pump 17 to stop working, so that the drain pipe 171 is not connected to the water collection tank 134, thereby allowing the water in the water collection tank 134 to flow back to the washing pump 11 through the return pipe 114 to participate in the circulating washing.

[0119] In some embodiments, the dishwasher 100 includes a washing chamber 50, an upper spray arm 31, a middle spray arm 33, a lower spray arm 35, and an auxiliary spray arm 37. The upper spray arm 31, middle spray arm 33, lower spray arm 35, and auxiliary spray arm 37 are disposed within the washing chamber 50. The upper spray arm 31 communicates with the upper spray arm water outlet 132a, the middle spray arm 33 communicates with the middle spray arm water outlet 132b, the lower spray arm 35 communicates with the lower spray arm water outlet 132c, and the auxiliary spray arm 37 communicates with the auxiliary spray arm water outlet 132d.

[0120] The dishwasher 100 includes a washing chamber 50, an upper spray arm 31, a middle spray arm 33, and a lower spray arm 35. The upper spray arm 31, the middle spray arm 33, and the lower spray arm 35 are disposed in the washing chamber 50. The upper spray arm 31 is connected to the upper spray arm water outlet 132a, the middle spray arm 33 is connected to the middle spray arm water outlet 132b, the lower spray arm 35 is connected to the lower spray arm water outlet 132c, and the auxiliary spray arm water outlet 132d is in a non-discharging state.

[0121] In this way, the dishwasher 100 can flexibly adapt to different application scenarios.

[0122] Specifically, the upper spray arm 31 is connected to the upper spray arm outlet 132a and is used to clean the top and upper areas of the washing chamber 50; the middle spray arm 33 is connected to the middle spray arm outlet 132b and is used to clean the middle area of ​​the washing chamber 50; the lower spray arm 35 is connected to the lower spray arm outlet 132c and is used to clean the lower and bottom areas of the washing chamber 50; and the auxiliary spray arm 37 is connected to the auxiliary spray arm outlet 132d and is used to clean specific areas of the washing chamber 50. During operation of the dishwasher 100, these spray arms can cooperate to spray and clean the tableware or kitchen utensils loaded in the washing chamber 50.

[0123] Optionally, in one embodiment, the auxiliary spray arm 37 is detachably installed within the washing chamber 50, allowing for flexible installation according to actual conditions. The number and installation position of the auxiliary spray arms 37 can be specifically limited according to actual conditions, and this utility model does not impose specific limitations in this regard. In one example, please refer to... Figure 1 The auxiliary spray arm 37 is installed below the lower spray arm 35 and is used to clean the corner areas at the bottom of the washing chamber 50.

[0124] exist Figures 6 to 11 as well as Figures 12 to 17 In the implementation of the method, when the dishwasher 100 is equipped with an upper spray arm 31, a middle spray arm 33, a lower spray arm 35 and an auxiliary spray arm 37, the dishwasher 100 has at least six working modes, including working mode A1, working mode A2, working mode A3, working mode B1, working mode B2 and working mode B3.

[0125] In one implementation, please refer to Figure 6 and Figure 12 The controller can control the motor 153 to drive the paddle 155 to rotate counterclockwise by 15° from its initial position, thereby controlling the controllable water system structure 10 to execute working mode B1. This ensures that one second through hole 151b is connected to the water outlet 132b of the middle spray arm, the first through hole 151a is not connected to the water outlet 132a of the upper spray arm, and the other two second through holes 151b are not connected to the water outlet 132c of the lower spray arm and the water outlet 132d of the auxiliary spray arm. Therefore, the controller can control the washing pump 11 to pump water through the outlet 112 to the water outlet 132b of the middle spray arm to supply water to the middle spray arm 33 connected to the water outlet 132b, while the water outlets 132a, 132c, and 132d of the upper spray arm, lower spray arm, and auxiliary spray arm are in a non-discharging state. Thus, the middle spray arm 33 can spray water to clean the central area of ​​the washing chamber 50.

[0126] In one implementation, please refer to Figure 7 and Figure 13The controller can control the motor 153 to work and drive the paddle 155 to rotate 108° counterclockwise from the initial position, thereby the controller can control the water system structure 10 to execute the working mode A2. The first through hole 151a is connected to the upper spray arm water outlet 132a, and the two second through holes 151b are connected to the middle spray arm water outlet 132b and the lower spray arm water outlet 132c respectively. The other second through hole 151b is not connected to the auxiliary spray arm water outlet 132d. Thus, the controller can control the washing pump 11 to pump water through the water outlet 112 to the upper spray arm water outlet 132a, the middle spray arm water outlet 132b, and the lower spray arm water outlet 132c, so as to simultaneously supply water to the upper spray arm 31 connected to the upper spray arm water outlet 132a, the middle spray arm 33 connected to the middle spray arm water outlet 132b, and the lower spray arm 35 connected to the lower spray arm water outlet 132c, while the auxiliary spray arm water outlet 132d is in a non-discharging state. Therefore, the upper spray arm 31, the middle spray arm 33, and the lower spray arm 35 can spray water simultaneously to clean the entire area of ​​the washing chamber 50.

[0127] In one implementation, please refer to Figure 8 and Figure 14 The controller can control the motor 153 to drive the paddle 155 to rotate counterclockwise by 139° from the initial position, thereby controlling the water system structure 10 to execute working mode A2. This ensures that the first through hole 151a is connected to the upper spray arm outlet 132a, and that the three second through holes 151b are not connected to the middle spray arm outlet 132b, the lower spray arm outlet 132c, and the auxiliary spray arm outlet 132d. Therefore, the controller can control the washing pump 11 to pump water through the outlet 112 to the upper spray arm outlet 132a, simultaneously supplying water to the upper spray arm 31 connected to the upper spray arm outlet 132a, while the middle spray arm outlet 132b, the lower spray arm outlet 132c, and the auxiliary spray arm outlet 132d are in a non-discharging state. Thus, the upper spray arm 31 can spray water to clean the upper area of ​​the washing chamber 50.

[0128] In one implementation, please refer to Figure 9 and Figure 15The controller can control the motor 153 to drive the paddle 155 to rotate counterclockwise by 168° from the initial position, thereby controlling the water system structure 10 to execute working mode A2. This ensures that the first through hole 151a is connected to the upper spray arm outlet 132a, and one of the second through holes 151b is connected to the middle spray arm outlet 132b. The other two second through holes 151b are not connected to the lower spray arm outlet 132c and the auxiliary spray arm outlet 132d. Therefore, the controller can control the washing pump 11 to pump water through the outlet 112 to the upper spray arm outlet 132a and the middle spray arm outlet 132b, simultaneously supplying water to the upper spray arm 31 connected to the upper spray arm outlet 132a and the middle spray arm 33 connected to the middle spray arm outlet 132b, while the lower spray arm outlet 132c and the auxiliary spray arm outlet 132d remain in a non-discharging state. Therefore, the upper spray arm 31 and the middle spray arm 33 can spray water simultaneously to clean the upper and middle areas of the washing chamber 50.

[0129] In one implementation, please refer to Figure 10 and Figure 15 The controller can control the motor 153 to drive the paddle 155 to rotate 248° counterclockwise from the initial position, thereby controlling the water system structure 10 to execute working mode B2. This ensures that one second through hole 151b is connected to the auxiliary spray arm outlet 132d, the first through hole 151a is not connected to the upper spray arm outlet 132a, and the other two second through holes 151b are not connected to the middle spray arm outlet 132b and the lower spray arm outlet 132c. Therefore, the controller can control the washing pump 11 to pump water through the outlet 112 to the middle spray arm outlet 132b to supply water to the auxiliary spray arm 37 connected to the auxiliary spray arm outlet 132d, while the upper spray arm outlet 132a, middle spray arm outlet 132b, and lower spray arm outlet 132c are in a non-discharging state. Thus, the auxiliary spray arm 37 can spray water to clean a specific area of ​​the washing chamber 50.

[0130] In one implementation, please refer to Figure 11 and Figure 17The controller can control the motor 153 to drive the paddle 155 to rotate 290° counterclockwise from its initial position, thereby controlling the water system structure 10 to execute working mode B2. This ensures that one second through hole 151b is connected to the lower spray arm outlet 132c, the first through hole 151a is not connected to the upper spray arm outlet 132a, and the other two second through holes 151b are not connected to the middle spray arm outlet 132b and the auxiliary spray arm outlet 132d. Therefore, the controller can control the washing pump 11 to pump water through the outlet 112 to the middle spray arm outlet 132b to supply water to the spray arm connected to the lower spray arm outlet 132c, while the upper spray arm outlet 132a, middle spray arm outlet 132b, and auxiliary spray arm outlet 132d are in a non-discharging state. Thus, the lower spray arm 35 can spray water to clean the lower area of ​​the washing chamber 50.

[0131] exist Figures 6 to 9 , Figure 11 as well as Figures 12 to 15 , Figure 17 In this embodiment, when the dishwasher 100 is equipped with an upper spray arm 31, a middle spray arm 33, and a lower spray arm 35 but not an auxiliary spray arm 37, the dishwasher 100 has at least five operating modes, including operating mode A1, operating mode A2, operating mode A3, operating mode B1, and operating mode B3. The auxiliary spray arm's water outlet 132d remains in a non-discharging state throughout the dishwasher 100's operation.

[0132] Optionally, in some embodiments, when the washing pump 11 includes a water outlet 112, the auxiliary spray arm water outlet 132d is always kept closed, thus remaining in a non-discharging state. In some embodiments, when the washing pump 11 includes a first water outlet and a second water outlet, since the second water outlet is connected to a second through hole 151b supplying water to the auxiliary spray arm water outlet 132d, the second water outlet is always kept closed, thus ensuring that the auxiliary spray arm water outlet 132d remains in a non-discharging state.

[0133] It is understood that the working modes A1, A2, A3, B1 and B3 in this embodiment are consistent with those described previously. Since the specific descriptions of these five working modes have been given in detail in previous embodiments, they will not be repeated here.

[0134] Therefore, the upper spray arm 31, middle spray arm 33, lower spray arm 35 and auxiliary spray arm 37 can each have a through hole 151 for water supply, which allows the dishwasher 100 to flexibly adapt to different application scenarios. Moreover, the dishwasher 100 can share the same control program in both the configuration with and without the auxiliary spray arm 37, thereby reducing R&D costs, testing resources and standardization investment.

[0135] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0136] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A water system structure for a dishwasher, characterized in that, The waterway system structure includes: A washing pump, wherein the washing pump is provided with a water outlet; A water cup assembly is connected to the washing pump. The water cup assembly is provided with an upper spray arm water outlet, a middle spray arm water outlet, a lower spray arm water outlet, and an auxiliary spray arm water outlet. The water distribution valve is connected to the water outlet and the water cup assembly. The water distribution valve includes a rotatable lever with at least one first through hole and at least three second through holes. The projection of the upper spray arm water outlet on the lever is located on the movement path of the first through hole. The projections of the middle spray arm water outlet, the lower spray arm water outlet, and the auxiliary spray arm water outlet on the lever are all located on the movement path of the second through holes.

2. The waterway system structure according to claim 1, characterized in that, The at least one first through hole is disposed near the rotation center of the lever, and the at least three second through holes are spaced apart on the outside of the first through hole along the circumferential direction of the lever.

3. The waterway system structure according to claim 1, characterized in that, The waterway system structure is designed to achieve at least the following operating modes: A: The first through hole is connected to the water outlet hole of the upper spray arm, and the three second through holes are not connected to the water outlet hole of the auxiliary spray arm. B: The first through hole is not connected to the water outlet of the upper spray arm, and one of the second through holes is connected to one of the water outlets of the middle spray arm, the lower spray arm, and the auxiliary spray arm.

4. The waterway system structure according to claim 3, characterized in that, The working mode A includes the following working modes: A1: The first through hole is connected to the water outlet of the upper spray arm, and the three second through holes are not connected to the water outlet of the middle spray arm, the water outlet of the lower spray arm, and the water outlet of the auxiliary spray arm, and / or; A2: The first through hole is connected to the water outlet of the upper spray arm, wherein two of the second through holes are connected to the water outlet of the middle spray arm and the water outlet of the lower spray arm one by one, and the other second through hole is not connected to the water outlet of the auxiliary spray arm, and / or; A3: The first through hole is connected to the water outlet of the upper spray arm, one of the second through holes is connected to the water outlet of the middle spray arm, and the other two second through holes are not connected to the water outlet of the lower spray arm and the water outlet of the auxiliary spray arm.

5. The waterway system structure according to claim 3, characterized in that, The working mode B includes the following working modes: B1: The first through hole is not connected to the water outlet of the upper spray arm, one of the second through holes is connected to the water outlet of the middle spray arm, and the other two second through holes and the water outlet of the lower spray arm and the water outlet of the auxiliary spray arm are not connected, and / or; B2: The first through hole is not connected to the water outlet of the upper spray arm, one of the second through holes is connected to the water outlet of the auxiliary spray arm, and the other two second through holes are not connected to the water outlet of the lower spray arm and the water outlet of the middle spray arm, and / or; B3: The first through hole is not connected to the water outlet of the upper spray arm, one of the second through holes is connected to the water outlet of the lower spray arm, and the other two second through holes are not connected to the water outlet of the middle spray arm and the water outlet of the auxiliary spray arm.

6. The waterway system structure according to claim 3, characterized in that, The working mode of the water system structure has a one-to-one mapping relationship with the rotation angle of the lever.

7. The waterway system structure according to claim 1, characterized in that, The water outlet includes a first water outlet and a second water outlet. The first water outlet is connected to a first through hole that supplies water to the water outlet of the upper spray arm and a second through hole that supplies water to the water outlet of the middle spray arm and the water outlet of the lower spray arm. The second water outlet is connected to a second through hole that supplies water to the water outlet of the auxiliary spray arm.

8. The waterway system structure according to claim 1, characterized in that, The water outlet of the upper spray arm is located close to the rotation axis of the paddle, while the water outlets of the middle spray arm, the lower spray arm, and the auxiliary spray arm are located away from the rotation axis of the paddle.

9. A dishwasher, characterized in that, Includes the waterway system structure described in any one of claims 1-8.

10. The dishwasher according to claim 9, characterized in that, The dishwasher includes a washing chamber, an upper spray arm, a middle spray arm, a lower spray arm, and an auxiliary spray arm. The upper spray arm, the middle spray arm, the lower spray arm, and the auxiliary spray arm are disposed within the washing chamber. The upper spray arm is connected to the water outlet of the upper spray arm, the middle spray arm is connected to the water outlet of the middle spray arm, the lower spray arm is connected to the water outlet of the lower spray arm, and the auxiliary spray arm is connected to the water outlet of the auxiliary spray arm. The dishwasher includes a washing chamber, an upper spray arm, a middle spray arm, and a lower spray arm. The upper spray arm, the middle spray arm, and the lower spray arm are disposed in the washing chamber. The upper spray arm is connected to the water outlet of the upper spray arm, the middle spray arm is connected to the water outlet of the middle spray arm, and the lower spray arm is connected to the water outlet of the lower spray arm. The water outlet of the auxiliary spray arm is in a non-discharging state.

Images