Water tank assembly and dish washing machine

Abstract

The utility model discloses a water tank assembly and a dish-washing machine, the water tank assembly comprises a water tank, the water tank is provided with a water storage space, a plurality of flow paths and a plurality of water path interfaces, and at least one part of the plurality of water path interfaces is respectively communicated with the plurality of flow paths; and the heat exchanger is arranged in the water tank and comprises a first heat exchange channel and a second heat exchange channel, the first heat exchange channel communicates with the water storage space, the second heat exchange channel is in heat exchange fit with the first heat exchange channel, and the multiple flow paths comprise heat exchange flow paths communicating with the first heat exchange channel and / or the second heat exchange channel. According to the water tank assembly, the water tank is provided with the heat exchanger, and heat exchange of water stored in the water tank can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, and particularly relates to a water tank assembly and a dishwasher. Background Art

[0002] In related technologies, dishwashers generally use electric heating to wash dishes with high-temperature hot water, and the waste water after washing is directly drained, thus wasting a large amount of heat and increasing the energy consumption of the dishwasher. Summary of the Utility Model

[0003] An object of the utility model is to provide a water tank assembly, where the water tank is provided with a heat exchanger, and heat exchange of the water stored in the water tank can be realized.

[0004] Another object of the utility model is to provide a dishwasher, including the aforementioned water tank assembly.

[0005] According to the water tank assembly of the embodiments of the utility model, the water tank assembly includes: a water tank, which is provided with a water storage space, a plurality of flow paths and a plurality of waterway interfaces, and at least a part of the plurality of waterway interfaces are respectively communicated with the plurality of flow paths; a heat exchanger, which is arranged in the water tank, and the heat exchanger includes a first heat exchange channel and a second heat exchange channel, the first heat exchange channel is communicated with the water storage space, the second heat exchange channel is in heat exchange cooperation with the first heat exchange channel, and the plurality of flow paths include heat exchange flow paths communicated with the first heat exchange channel and / or the second heat exchange channel.

[0006] According to the water tank assembly of the embodiments of the utility model, the water tank is provided with a heat exchanger, and heat exchange of the water stored in the water tank can be realized.

[0007] In addition, according to the water tank assembly of the above embodiments of the utility model, the following additional technical features may also be provided:

[0008] In some embodiments, the heat exchange flow path includes a first flow path, the plurality of waterway interfaces include a first interface and a second interface, one end of the first heat exchange channel is communicated with the water storage space, one end of the first flow path is communicated with the other end of the first heat exchange channel, the other end of the first flow path is communicated with the first interface, and the second interface is communicated with the water storage space.

[0009] In some embodiments, the heat exchange flow path further includes a third flow path and a fourth flow path, the plurality of waterway interfaces include a third interface and a fourth interface, one end of the third flow path is communicated with one end of the second heat exchange channel and the other end is communicated with the third interface, and one end of the fourth flow path is communicated with the other end of the second heat exchange channel and the other end is communicated with the fourth interface.

[0010] In some embodiments, the lower end of the second heat exchange channel communicates with the third flow path, and the upper end of the second heat exchange channel communicates with the fourth flow path; and / or, the plurality of flow paths further include a fifth flow path and a sixth flow path. The lower end of the fifth flow path communicates with the second heat exchange channel, and the upper end extends to the upper part of the water tank and communicates with the external space of the water tank. The upper end of the sixth flow path communicates with the upper end of the fifth flow path, and the lower end communicates with the fourth flow path.

[0011] In some embodiments, the plurality of flow paths further include a water inlet flow path, and the plurality of waterway interfaces include a fifth interface and a sixth interface. The two ends of the water inlet flow path are respectively connected to the fifth interface and the sixth interface.

[0012] In some embodiments, the water inlet flow path and the heat exchange flow path are respectively arranged on the left and right sides of the water storage space; and / or, at least a part of the water inlet flow path inclines towards the heat exchange flow path in the top-down direction; and / or, at least a part of the heat exchange flow path inclines towards the water inlet flow path in the top-down direction.

[0013] In some embodiments, the plurality of flow paths further include a make-up water flow path, and the plurality of waterway interfaces further include a seventh interface. One end of the make-up water flow path is arranged at the upper end of the water storage space and communicates with the water storage space, and the other end of the make-up water flow path communicates with the seventh interface. The make-up water flow path is arranged on one side of the water storage space close to the water inlet flow path.

[0014] In some embodiments, the plurality of waterway interfaces further include an eighth interface, and the eighth interface communicates with the lower end of the water storage space. The water tank assembly further includes a first on-off valve, and the first on-off valve is used to open and close the eighth interface.

[0015] In some embodiments, the plurality of waterway interfaces are arranged at the lower end of the water tank and are arranged side by side in the left-right direction.

[0016] In some embodiments, the heat exchanger is arranged on the side of the water storage space; and / or, the heat exchanger is vertically arranged along the length direction on the water tank.

[0017] In some embodiments, the heat exchanger includes a heat exchange space, and a plurality of heat exchange tubes are arranged at intervals in the heat exchange space. The first heat exchange channel is formed in the heat exchange tubes, and the second heat exchange channel is formed between the plurality of heat exchange tubes.

[0018] In some embodiments, the heat exchanger is placed vertically, the first heat exchange channel extends in the up-down direction, and the second heat exchange channel extends in the up-down direction; or, the heat exchange space is integrally provided in the water tank; or, the heat exchanger includes a housing, the heat exchange space is arranged in the housing, and the housing is installed on the water tank.

[0019] A dishwasher according to an embodiment of the present utility model includes: a water cup; the aforementioned water tank assembly, and the second heat exchange channel communicates with the water cup.

[0020] In some embodiments, the dishwasher further includes a water softener, the water softener is connected to the water tank assembly, the plurality of flow paths include a water inlet flow path, an inlet of the water inlet flow path is connected to a water source, and an outlet communicates with the water softener.

[0021] In some embodiments, the water softener is provided with a plurality of channels and a plurality of water tank interfaces, the plurality of water tank interfaces respectively communicate with the plurality of channels, and the plurality of water tank interfaces communicate with the plurality of water path interfaces in a corresponding manner. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of a water tank assembly according to an embodiment of the present utility model.

[0023] Figure 2 It is a schematic diagram of a flow path system of a dishwasher according to an embodiment of the present utility model.

[0024] Reference Numerals:

[0025] Second channel 2, water tank 3, water tank water inlet 4, inner tank connection port 5, cold water outlet 6, heat exchanger 7, make-up water flow path 8, check valve 11, water inlet flow path 12, drainage anti-siphon structure 13, flow meter 14, first pipeline 15, second pipeline 16, drainage pipeline 17, water inlet pipeline 18, water inlet valve 19, water softener 20, first connection port 21, first cold water pipeline 22, third pipeline 23, first switching valve 24, water distribution structure 25, water pump 26, second cold water pipeline 27, fourth pipeline 28, inlet of the water cup 29, drainage pump 30, first hot water pipeline 31, second switching valve 32, second hot water pipeline 33, circulation pump 34, water distribution valve 35, water cup 36, lower spray arm 37, middle spray arm 38, upper spray arm 39, inner tank 40, fifth pipeline 41, sixth pipeline 42, anti-siphon device 43, water storage space 301, first flow path 311, first interface 321, second interface 322, third flow path 313, fourth flow path 314, third interface 323, fourth interface 324, fifth flow path 315, sixth flow path 316, fifth interface 325, sixth interface 326, seventh interface 327, eighth interface 328. Detailed Description of the Embodiments

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0027] As Figure 1 , according to the water tank assembly 100 of an embodiment of the present utility model, which is used for a dishwasher, the water tank assembly 100 includes a water tank 3. The water tank 3 is provided with a water storage space 301, a plurality of flow paths and a plurality of waterway interfaces, and at least a part of the plurality of waterway interfaces are respectively communicated with the plurality of flow paths. The water tank assembly 100 further includes a heat exchanger 7. The heat exchanger 7 is arranged in the water tank 3. The heat exchanger 7 includes a first heat exchange channel and a second heat exchange channel. The first heat exchange channel is communicated with the water storage space 301. The second heat exchange channel is in heat exchange cooperation with the first heat exchange channel. The plurality of flow paths include heat exchange flow paths communicated with the first heat exchange channel and / or the second heat exchange channel. The water in the water tank 3 can exchange heat with the fluid in the second heat exchange channel when passing through the first heat exchange channel. Among them, the fluid in the second heat exchange channel can be the waste water with residual heat during the washing process, and can also be other types of hot water, etc. The heat exchanger 7 can be used to adjust the water temperature in the water tank 3. When it is necessary to use the water in the water tank 3 to participate in the washing, since the water in the water tank 3 is preheated, the working efficiency of the dishwasher can be improved. In addition, the second heat exchange channel can be connected to a water cup so as to utilize the hot water with residual heat during the washing process to heat the water in the water tank 3, which can improve the energy efficiency of the dishwasher.

[0028] According to the water tank assembly 100 of an embodiment of the present utility model, the water tank 3 is provided with a heat exchanger 7, and heat exchange of the stored water in the water tank 3 can be realized. By arranging the heat exchanger 7 in the water tank 3, the integration degree of the dishwasher can be improved, which is convenient for the assembly and maintenance of the dishwasher. In addition, by arranging the heat exchanger 7 in the water tank 3, the pipeline of the water tank assembly 100 can be shortened, the heat exchange efficiency can be improved, and the water leakage points can be reduced.

[0029] As Figure 1 and Figure 2 , in some embodiments, the heat exchange flow path includes a first flow path 311, the plurality of waterway interfaces include a first interface 321 and a second interface 322. One end of the first heat exchange channel is communicated with the water storage space 301. One end of the first flow path 311 is communicated with the other end of the first heat exchange channel. The other end of the first flow path 311 is communicated with the first interface 321. The second interface 322 is communicated with the water storage space 301. During use, the water in the water tank 3 can be connected to the first heat exchange channel of the heat exchanger 7 through the first flow path 311, so as to facilitate the realization of heat exchange of the water in the water tank 3 by using the heat exchanger 7. Among them, the dishwasher may further include a water pump, and the water pump can be communicated with the first interface 321 and the second interface 322. In this way, the water tank 3, the first flow path 311, the first heat exchange channel and the water pump are connected into a circulation loop.

[0030] As Figure 1 and Figure 2, the heat exchange flow path further includes a third flow path 313 and a fourth flow path 314, and the plurality of water path interfaces include a third interface 323 and a fourth interface 324. One end of the third flow path 313 communicates with one end of the second heat exchange channel and the other end communicates with the third interface 323, and one end of the fourth flow path 314 communicates with the other end of the second heat exchange channel and the other end communicates with the fourth interface 324. The third interface 323 and the fourth interface 324 can be connected to a water cup and a circulation pump to form a loop. For example, the outlet of the water cup is connected to the inlet of the circulation pump, the outlet of the circulation pump communicates with the third interface 323, and the fourth interface 324 communicates with the inlet of the water cup, thereby forming a fluid path to facilitate heating the water in the water tank 3 with the water with residual heat in the water cup and realizing the recovery of the residual heat of the washing water.

[0031] Optionally, the lower end of the second heat exchange channel communicates with the third flow path 313, and the upper end of the second heat exchange channel communicates with the fourth flow path 314. This can facilitate the assembly and distribution of the heat exchanger 7 and the water tank 3, improve the space utilization rate, and facilitate heat exchange.

[0032] Furthermore, the plurality of flow paths further includes a fifth flow path 315 and a sixth flow path 316. The lower end of the fifth flow path 315 communicates with the second heat exchange channel, and the upper end extends to the upper part of the water tank 3 and communicates with the external space of the water tank 3. The upper end of the sixth flow path 316 communicates with the upper end of the fifth flow path 315, and the lower end communicates with the fourth flow path 314. Through the fifth flow path 315 and the sixth flow path 316, the air pressure balance inside and outside the fourth flow path 314 can be achieved to facilitate the fluid to pass through the fourth flow path 314 and the path where the fourth flow path 314 is located. In addition, after the heat exchange is completed, it is convenient to drain the fluid in the fourth flow path 314.

[0033] Such as Figure 1 and Figure 2 , in some embodiments, the plurality of flow paths further includes a water inlet flow path 12, and the plurality of water path interfaces include a fifth interface 325 and a sixth interface 326. The two ends of the water inlet flow path 12 are respectively connected to the fifth interface 325 and the sixth interface 326. By integrating the water inlet flow path 12 into the water tank 3, the structure of the dishwasher can be simplified, and the production and assembly of the dishwasher can be facilitated.

[0034] In addition, the water tank assembly 100 may further include a one-way valve 11. The one-way valve 11 is provided in the water inlet flow path 12 and is configured to conduct unidirectionally from the fifth interface 325 to the sixth interface 326, thereby realizing anti-siphon of the water inlet flow path 12. In addition, the water tank assembly 100 may further include a flow meter 14. The flow meter 14 can be connected in series with the water inlet flow path 12. Through the cooperation of the flow meter 14 and the water inlet valve, quantitative water supply can be achieved.

[0035] Optionally, the water inlet flow path 12 and the heat exchange flow path are respectively arranged on the left and right sides of the water storage space 301, which can optimize the distribution of the flow paths in the water tank 3 and improve the stability of the dishwasher. In addition, the heat exchanger 7 and the heat exchange flow path can be arranged on the same side of the water storage space 301 in the left-right direction.

[0036] At least a part of the water inlet flow path 12 inclines towards the heat exchange flow path in the top-down direction; and / or, at least a part of the heat exchange flow path inclines towards the water inlet flow path 12 in the top-down direction. Thereby, it is convenient to concentrate multiple waterway interfaces at the middle position of the lower end of the water tank 3, which is convenient for connecting the water tank 3 to other structures through the waterway interfaces and simplifies the structure of the dishwasher.

[0037] For example, the dishwasher of the present utility model may further include a water softener 20. The water softener 20 may include multiple water tank interfaces, and the multiple water tank interfaces are respectively connected to the multiple waterway interfaces. At this time, by bringing the lower ends of the heat exchange flow path and the water inlet flow path 12 closer to each other, the size of the multiple waterway interfaces in the left-right direction can be reduced, so as to facilitate the connection between the water tank 3 and the water softener 20 and facilitate the assembly of the dishwasher.

[0038] Such as Figure 1 and Figure 2 In some embodiments, the multiple flow paths further include a makeup water flow path 8 for making up water to the water tank 3. The multiple waterway interfaces further include a seventh interface 327. One end of the makeup water flow path 8 is arranged at the upper end of the water storage space 301 and communicates with the water storage space 301, and the other end of the makeup water flow path 8 communicates with the seventh interface 327. The makeup water flow path 8 is arranged on the side of the water storage space 301 close to the water inlet flow path 12. Thereby, it is convenient to supply water to the makeup water flow path 8 through the seventh interface 327 to facilitate making up water to the water tank 3.

[0039] Optionally, the multiple waterway interfaces further include an eighth interface 328 that communicates with the lower end of the water storage space 301. The water tank assembly 100 further includes a first on-off valve for opening and closing the eighth. Among them, the eighth interface 328 can be used as the outlet of the water tank 3, which can facilitate the delivery of the water in the water tank 3. For example, by opening the first on-off valve, the water in the water tank 3 can be sent into the water cup 36 through the fourth interface 324 for use in the dishwasher.

[0040] In some embodiments, the multiple waterway interfaces are arranged at the lower end of the water tank 3 and are arranged side by side in the left-right direction. It can simplify the structure of the water tank 3 and facilitate the connection between the water tank 3 and other structures. For example, the multiple waterway interfaces can be connected to the water softener 20, and the water softener 20 can be provided with multiple water tank interfaces, so that the multiple waterway interfaces and the multiple water tank interfaces can be respectively connected correspondingly, realizing the stable connection between the water tank 3 and the water softener 20, simplifying the distribution of the flow paths, and improving the stability of the dishwasher.

[0041] Optionally, the heat exchanger 7 is provided on the side of the water storage space 301, which can facilitate the arrangement of the heat exchanger 7 and the water tank 3 and optimize the distribution of components of the water tank assembly 100. In addition, the heat exchanger 7 is vertically arranged along its length direction on the water tank. For example, the water tank is arranged to extend in the up-down direction, the heat exchanger 7 is provided on the water tank, and the heat exchanger is arranged to extend in the up-down direction. This can facilitate the connection of the heat exchanger 7 to the water circuit interface.

[0042] In addition, the heat exchanger 7 includes a heat exchange space, in which a plurality of heat exchange tubes are arranged at intervals. A first heat exchange channel is formed inside the heat exchange tubes, and a second heat exchange channel is formed between the plurality of heat exchange tubes, which can optimize the heat exchange between the first heat exchange channel and the second heat exchange channel. Among them, the plurality of heat exchange tubes can be arranged at intervals along the width direction of the heat exchanger 7. The first heat exchange channel is constructed inside the heat exchange tubes, and a plurality of first heat exchange channels are constructed by the plurality of heat exchange tubes. The second heat exchange channel can be constructed between adjacent heat exchange tubes and / or between the heat exchange tubes and the inner side surface of the heat exchange space. The first heat exchange channel and the second heat exchange channel can exchange heat through the tube wall of the heat exchange tubes. Among them, the heat exchange tubes can be microchannel flat tubes, which can further improve the heat exchange efficiency between the first heat exchange channel and the second heat exchange channel.

[0043] Optionally, the first heat exchange channel extends in the up-down direction, and the second heat exchange channel extends in the up-down direction. The first heat exchange channel and the second heat exchange channel are arranged side by side along the width direction of the heat exchanger 7.

[0044] In some examples, the water tank 3 is integrally provided with a heat exchange space, and the heat exchanger 7 and the water tank 3 are of an integrated structure. This can improve the integration degree of the water tank assembly. In addition, the heat radiated outward by the fluid in the second heat exchange channel can also be directly transferred to the water storage space, which can further optimize the waste heat recovery and save energy and protect the environment.

[0045] In other examples, the heat exchanger 7 includes a housing, the heat exchange space is provided in the housing, the housing is installed on the water tank 3, and the heat exchanger 7 and the water tank 3 are of a split structure. The water tank 3 and the housing of the heat exchanger 7 are respectively formed, which can simplify the structure of the water tank. The water tank 3 is provided with a hollow structure, one end of the hollow structure is provided with a first opening and a second opening, and the other end is provided with a third opening and a fourth opening. One end of the housing is provided with a first connecting pipe and a second connecting pipe, and the other end of the housing is provided with a third connecting pipe and a fourth connecting pipe. Among them, the first connecting pipe passes through the first opening, the second connecting pipe passes through the second opening, the third connecting pipe passes through the third opening, and the fourth connecting pipe passes through the fourth opening. The first connecting pipe and the third connecting pipe are connected to the first heat exchange channel, and the second connecting pipe and the fourth connecting pipe are connected to the second heat exchange channel.

[0046] Optionally, the water tank 3 is provided with a first opening, a second opening, a third opening and a fourth opening. The first opening is connected to the first flow path, the second opening is connected to the third flow path, the third opening is connected to the water storage space 301, and the fourth opening is connected to the fifth flow path.

[0047] Such as Figure 1 And Figure 2 ,According to the dishwasher of the embodiment of the present utility model, it includes: a water cup 36; the aforementioned water tank assembly 100, and the second heat exchange channel communicates with the water cup 36. Specifically, the washing water with residual heat in the water cup 36 can be introduced into the second heat exchange channel, and the first heat exchange channel communicates with the water storage space 301, so that the water in the water tank 3 can be heated by the washing water with residual heat, realizing waste heat recovery, energy conservation and environmental protection.

[0048] In some embodiments, the dishwasher further includes a water softener 20, the water softener 20 is connected to the water tank assembly 100, and the multiple flow paths include a water inlet flow path 12, the inlet of the water inlet flow path 12 is connected to a water source, and the outlet communicates with the water softener 20. The water softener 20 may be provided with a water inlet and a resin chamber. Among them, the water inlet may communicate with the fifth interface 325, and the inlet of the resin chamber may communicate with the sixth interface 326. In addition, the water softener 20 may also be provided with a water cup 36 interface for connecting the inlet of the water cup 36, so as to realize introducing softened water into the water cup 36.

[0049] Optionally, the water softener 20 is provided with multiple channels and multiple water tank interfaces, the multiple water tank interfaces respectively communicate with the multiple channels, and the multiple water tank interfaces communicate with the multiple water path interfaces in a corresponding manner. Thereby, the integration degree of the dishwasher can be improved and the leakage points can be reduced.

[0050] Such as Figure 1 And Figure 2 ,According to the dishwasher of the embodiment of the present utility model, it includes a water cup 36, the water cup 36 is used for temporarily storing water and filtering the washing water. During the use of the dishwasher, the water during the washing process can be stored in the water cup 36 to facilitate the centralized discharge of the washing water and collect residues during the washing process, etc. It also includes a water tank 3, the water tank 3 has a water storage space, and the water storage space can be used for storing water, and the work of the dishwasher can be facilitated by storing water, thereby improving the washing efficiency and effect. In addition, it may further include a washing box, a washing space is provided in the washing box, and tableware to be washed, etc. can be placed therein. Among them, the water cup 36 can be arranged at the bottom of the washing box and communicate with the washing space.

[0051] In addition, the dishwasher may further include a first switching valve 24, one end of the first switching valve 24 communicates with the outlet of the water tank 3, and the first switching valve 24 can be used to control the opening and closing of the outlet of the water tank 3. It further includes a water distribution structure 25, the water distribution structure 25 has a first connection port 21, a second connection port and a third connection port, the first connection port 21 communicates with the other end of the first switching valve 24 and the water inlet flow path 12, the second connection port communicates with the inlet of the water tank 3, and the third connection port connects to the inlet of the water cup 36. The water flow direction can be controlled through the sorting structure.

[0052] According to the dishwasher of the embodiments of the present utility model, the adjustment of the water flow direction can be achieved through the linkage of the first switching valve 24 and the water distribution structure 25. For example, through the combination of the first switching valve 24 and the water distribution structure 25, the water source can be controlled to supply water to the water cup 36 or to the water tank 3; it can also control the water tank 3 or the water source to supply water to the water cup 36 to meet different water usage requirements. Thus, the use of the dishwasher can be facilitated.

[0053] In addition, the water tank 3 in the present utility model can be stacked on the side wall, bottom wall or top wall of the washing tank, etc.

[0054] Such as Figure 1 and Figure 2 , in some embodiments, the dishwasher has at least two working modes, and the water distribution structure 25 is configured to control the first connection port 21 to selectively connect to the second connection port and the third connection port according to at least two working modes. Thus, the working mode of the dishwasher can be switched by adjusting the water distribution structure 25 to facilitate the use of the dishwasher.

[0055] Optionally, the dishwasher in the present utility model may include but is not limited to the following working modes.

[0056] In some examples, the dishwasher has a first working mode. In the first working mode, the first switching valve 24 is closed and the first connection port 21 is in communication with the second connection port for replenishing water to the water tank 3. In the first working mode, after the water in the water inlet flow path 12 reaches the first connection port 21, the water will flow to the second connection port, thereby realizing the replenishment of water to the water tank 3. A water level sensor can be provided in the water tank 3 or a flow sensor can be provided in the water inlet flow path 12. When the water volume in the water tank 3 reaches the preset water volume, the water inlet flow path 12 will be closed, thus completing the replenishment of the water tank 3.

[0057] In some examples, the dishwasher also has a second working mode. In the second working mode, the first switching valve 24 is closed and the first connection port 21 is in communication with the third connection port for replenishing water to the water cup 36. In the second working mode, after the water in the water inlet flow path 12 reaches the first connection port 21, the water will flow to the third connection port, thereby realizing the supply of water to the water cup 36. A flow sensor can be provided in the water inlet flow path 12. When the water volume in the water cup 36 reaches the preset water volume, the water inlet flow path 12 will be closed, thus completing the supply of water to the water cup 36.

[0058] In some examples, the dishwasher further has a third working mode. In the third working mode, the first switching valve 24 is opened, and the first connection port 21 and the third connection port are communicated to supply water to the water cup 36 through the water tank 3. In the third working mode, the water inlet flow path 12 is closed, the water in the water tank 3 flows out from the outlet, and after passing through the first switching valve 24, it flows to the first connection port 21, and then flows to the water cup 36 through the third connection port, so as to supply water to the water cup 36. When the water volume in the water cup 36 reaches the preset water volume, the first switching valve 24 can be closed to complete the water supply to the water cup 36.

[0059] In some embodiments, the dishwasher further includes a water softener 20. The water softener 20 is connected between the water inlet flow path 12 and the first connection port 21 for supplying softened water to the first connection port 21. By providing the water softener 20, softened water can be provided to improve the washing efficiency and effect of the dishwasher. In addition, the water softener 20 is provided before the first connection port 21, and can supply softened water into the water tank 3 and the water cup 36 to achieve full soft water washing.

[0060] In some embodiments, the water distribution structure 25 is installed on the water softener 20; and / or, at least a part of the pipeline between the water distribution structure 25 and the water tank 3 is integrated into the water softener 20; and / or, at least a part of the pipeline between the water distribution structure 25 and the water cup 36 is integrated into the water softener 20. It can facilitate the integration of the water softener 20, simplify the structure of the dishwasher, and facilitate the maintenance of the dishwasher, etc., and optimize the space utilization rate of the dishwasher.

[0061] In some embodiments, the water inlet flow path 12 is integrated into the water tank 3. The water tank 3 is connected to the water softener 20, and the water inlet flow path 12 communicates with the soft water flow path in the water softener 20; and / or, the water softener 20 is provided with a water source interface. The water inlet flow path 12 is integrated into the water tank 3. The water tank 3 is connected to the water softener 20, and the water inlet flow path 12 communicates with the water source interface. The connection between the water tank 3 and the water softener 20 can be used to make the flow path in the water tank 3 communicate with the flow path in the water softener 20, so as to facilitate the integration of components, and can facilitate the assembly of the dishwasher, and improve the assembly efficiency and stability of the dishwasher.

[0062] Optionally, the water tank 3 is provided with at least one water tank interface, and the water softener 20 is provided with at least one water softener 20 interface. The water tank 3 is connected to the water softener 20, and at least one water tank interface is docked with at least one water softener 20 interface. It can simplify the assembly structure of the water softener 20 and the water tank 3, thereby further simplifying the structure of the dishwasher.

[0063] In some embodiments, the dishwasher further includes a heat exchanger 7, which has a first heat exchange channel and a second heat exchange channel for heat exchange cooperation. The first heat exchange channel is communicated with the water storage space in the water tank 3 to form a heat exchange loop, and the two ends of the second heat exchange channel are respectively connected to the inlet of the water cup and the outlet of the circulation pump. During use, the water in the water cup 36 can be sent into the second heat exchange channel, and the water in the water tank 3 is circulated through the first heat exchange channel, so as to realize the heat exchange between the water in the water tank 3 and the waste water in the water cup 36, thereby improving the utilization rate of energy and avoiding heat loss during the washing process of the dishwasher.

[0064] Optionally, the dishwasher further includes a circulation pump 34 and a second switching valve 32. The inlet of the circulation pump 34 is connected to the outlet of the water cup 36, and the second switching valve 32 is connected between the outlet of the circulation pump 34 and the second heat exchange channel for connecting or disconnecting the second heat exchange channel from the outlet of the water cup 36. The circulation pump 34 can be used to pump the washing water to realize the tableware washing of the dishwasher. By using the second switching valve 32, the water flow direction can be controlled. For example, the second heat exchange channel and the water cup 36 can be connected by opening the second switching valve 32 to realize the water circulation between the second heat exchange channel and the water cup 36. In addition, the water in the water cup 36 can also be sent to the washing tank by closing the second switching valve 32 to realize the washing of tableware and the like in the washing tank.

[0065] Optionally, the dishwasher in the present utility model may include but is not limited to the following working modes.

[0066] In some examples, the dishwasher further has a fourth working mode. In the fourth working mode, the third connection port is disconnected from the first connection port 21, the circulation pump 34 operates and the second switching valve 32 is opened for sending the water in the water cup 36 to the second heat exchange channel. In the fourth working mode, when the circulation pump 34 operates, the water in the water cup 36 can be pumped out by the pump 26. Since the second switching valve 32 is opened, the water in the water cup 36 will be sent to the second heat exchange channel, and after being heat-exchanged with the water in the first heat exchange channel, it will be sent out. The water sent out from the second heat exchange channel will be sent to the inlet of the water cup 36. Thus, the purpose of preheating the water in the water tank 3 by using the waste heat of the waste water in the water cup 36 is realized, and the energy efficiency of the dishwasher is improved.

[0067] In some examples, the dishwasher further has a fifth working mode. In the fifth working mode, the third connection port is communicated with the first connection port 21, the circulation pump 34 rotates in reverse or stops, and the second switching valve 32 is opened for flushing the second heat exchange channel. In the fifth working mode, the water in the water inlet flow path 12 or the water tank 3 can be sent to the third connection port, and after passing through the third connection port, it is sent to the second heat exchange channel, and after passing through the second heat exchange channel, it is sent to the water cup 36 through the second switching valve 32, so as to realize the reverse flushing of the second heat exchange channel.

[0068] Optionally, a third switching valve may also be provided between the third connection port and the inlet of the water cup 36. The third switching valve may be disposed between the second heat exchange channel and the inlet of the water cup 36, so as to control the flow direction of the water sent out from the third connection port through the third switching valve. In addition, a fourth switching valve may also be provided between the second heat exchange channel and the third connection port. The third switching valve and the fourth switching valve may also be combined into a reversing valve.

[0069] Optionally, a fifth switching valve may also be provided between the circulation pump 34 and the water distribution valve 35. The fifth switching valve and the second switching valve 32 cooperate to control the flow direction of the water at the outlet of the circulation pump 34. In addition, the second switching valve 32 and the fifth switching valve may be combined and configured into a reversing valve.

[0070] In order to meet the requirements of large sets of dishwashers, the heat exchange system of the present utility model has a small overall size, a simple structure, does not occupy the space of the original inner tank 40 of the dishwasher, and the heat exchanger 7 in the present utility model is much smaller in volume than any heat exchanger 7 in the above-mentioned utility model patent, and the heat exchange efficiency is greater than 90%; the auxiliary equipment and connecting pipelines used in the heat exchange system of the present utility model are simpler and more convenient for installation.

[0071] Some specific embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0072] As Figure 2 shown, a flow path system of a dishwasher includes at least one of an inner tank 40, a water cup 36, a water tank 3, a heat exchanger 7, a water softener 20, a water distribution structure 25, a circulation pump 34, a water pump 26, a drainage pump 2630, a water distribution valve 35, an inlet valve 19, a drainage valve, a check valve 11, a flow meter 14, a first switching valve 24, and a second switching valve 32.

[0073] The inner container 40 is provided with a washing space, and at least one of a lower spray arm 37, a middle spray arm 38 and an upper spray arm 39 is arranged in the washing space. The lower spray arm 37, the middle spray arm 38 and the upper spray arm 39 are connected to a water distribution valve 35, the water distribution valve 35 is connected to a circulation pump 34, and the circulation pump 34 is connected to the outlet of a water cup 36. The water cup 36 is connected below the inner container 40 and communicates with the washing space. The water tank 3 is provided with a water storage space and an inner container 40 interface for connecting to the inner container 40. The water tank 3 is an integrated device, which is arranged on the side plate of the dishwasher. The water tank 3 is provided with a water inlet flow path 12, and a flow meter 14 and a check valve 11 are connected in series in the water inlet flow path 12. The check valve 11 is used for one-way conduction of the water inlet flow path 12 and can play a role in preventing siphonage. The heat exchanger 7 is provided with a first heat exchange channel and a second heat exchange channel that are heat exchange-matched. The first heat exchange channel is connected to form a loop with the water storage space, and the second heat exchange channel is connected to form a passage with the water cup 36. The heat exchanger 7 is mainly used for heat exchange between the cold water in the water tank 3 and the washing hot water. The water softener 20 is provided with a water inlet channel and a water softening channel. The water inlet channel is connected with a water inlet valve 19 and communicates with the inlet of the water inlet flow path 12. The inlet of the water softening channel communicates with the outlet of the water inlet channel, and the outlet of the water softening channel communicates with a water distribution structure 25. The water distribution structure 25 has a first connection port 21, a second connection port and a third connection port. The first connection port 21 is connected to the outlet of the water softening channel, the second connection port communicates with the inlet of the water tank 3, and the third connection port communicates with the water cup 36. A first switching valve 24 is connected between the first connection port 21 and the outlet of the water tank 3. The main function of the check valve 11 is to realize the one-way conduction function of the water path and the air path, so as to ensure that the water flow can only flow in the water inlet direction and cannot flow reversely.

[0074] The water tank of the present utility model integrates a flow path. The water tank is provided with a fourth flow path 314, and the fourth flow path 314 is a pipeline for circulating hot water inside the water tank 3. The fourth flow path 314 can be connected to the fourth pipeline 28 and is used to connect the heat exchanger 7 with the inlet of the water cup 36, so as to enable the water flow in the heat exchanger 7 to enter the water cup 36 through the fourth flow path 314, the fourth pipeline 28, and the inlet of the water cup 36. At this time, the second switch valve 32 and the water pump 26 can select low-voltage electrical appliances (low-voltage solenoid valve and low-voltage water pump 26). When the water cup 36 is filled with water, the water flow will reversely enter the heat exchanger 7 through the fourth flow path 314 and pass through the first hot water pipeline 31, the second switch valve 32, the second hot water pipeline 33, and the circulation pump 34 to enter the water cup 36, completing the backwashing of the heat exchanger 7; the water tank is provided with a second channel 2, and the second channel 2 is a ventilation / overflow connection flow channel of the water tank 3 and is used to connect the inner tank connection port with the upper space of the water tank 3. When the water level in the water tank 3 is too high, it can enter the inner tank 40 through the second channel 2 and the inner tank connection port 5, and it is an integral structure with the water tank 3; the water tank 3 is an integrated device, mainly integrating the fourth flow path 314, the second channel 2, the water tank water inlet 4, the inner tank connection port 5, the cold water outlet 6, the makeup water flow path 8, the third flow path 313, the first flow path 311, the check valve 11, the water inlet flow path 12, the drainage anti-siphon structure 13, the flow meter 14, etc.; the water tank water inlet 4 is the highest point of the water tank 3 for water inlet and is also the water inlet of the water tank 3; the inner tank connection port 5 is an integral structure with the water tank 3 and is mainly used to realize the intercommunication between the water tank 3 and the inner tank 40; the cold water outlet 6 is the connection port between the water tank 3 and the heat exchanger 7 and is mainly used for the cold water in the heat exchanger 7 to enter the water tank 3.

[0075] The make-up water flow path 8 is an inlet connection pipeline, integrated in the water tank 3, and is used to connect the water tank inlet 4 and the water distribution structure 25; the third flow path 313 is a hot water connection pipeline, integrated in the water tank 3, and is used to connect the heat exchanger 7 and the first hot water pipeline 31; the first flow path 311 is integrated in the water tank 3 and is used to connect the heat exchanger 7 and the second cold water pipeline 27; the main function of the one-way valve 11 is to realize the one-way conduction function of the water path and the air path, so as to ensure that the water flow can only enter the water softener 20 after passing through the inlet water flow path 12 and the first pipeline 15, and cannot enter the inlet water flow path 12 after passing through the water softener 20 and the first pipeline 15; the inlet water flow path 12 is the connection pipeline between the one-way valve 11 and the flow meter 14, integrated in the water tank 3; the drainage anti-siphon structure 13 is a drainage and drainage anti-siphon structure, the upper end pipeline of which extends to the top of the water tank 3 and is connected to the anti-siphon device 43, integrated in the water tank 3, and there is a pipeline inside it connected to the drainage pipeline 17, which can realize drainage; the flow meter 14 is mainly used to calculate the inlet water flow, and can cooperate with the inlet valve 19 to control the water intake of the dishwasher, and is integrated in the water tank 3; the first pipeline 15 is a connecting pipeline, mainly used to connect the inlet water flow path 12 and the water softener 20, and the flow meter 14 and the water softener 20; the second pipeline 16 is used to connect the water distribution structure 25 and the make-up water flow path 8 to realize the water intake function of the water tank 3; the drainage pipeline 17 is mainly used to drain the water cup 36 into the domestic sewage pipeline; the inlet pipeline 18 is mainly used to connect the tap water port and the dishwasher equipment; the inlet valve 19 is mainly used to control the on-off of the pipeline inlet pipeline 18, which is located on the inlet pipeline 18 and can also be integrally arranged on the water softener 20; the water softener 20 is mainly used to soften the tap water entering the dishwasher, and is also an integrated device, mainly integrating components such as the inlet valve 19, the water distribution structure 25, and the water pump 26; the first connection port 21 is the inlet of the water distribution structure 25, mainly used to connect the water softener 20 and the water distribution structure 25; the first cold water pipeline 22 is used to connect the water tank 3 and the water pump 26; the third pipeline 23 is used to connect the water tank 3, the first switch valve 24, the water softener 20 and the first connection port 21; the first switch valve 24 is used to control the on-off of the pipeline third pipeline 23, and can control the water discharge of the water tank 3. When the water tank 3 discharges water, the first switch valve 24 is opened, the first connection port 21 in the water distribution structure 25 is connected to the fourth pipeline 28, and the water flow enters the water cup 36 from the water tank 3 through the first switch valve 24, the third pipeline 23, the first connection port 21, the fourth pipeline 28, and the inlet of the water cup 36; the water distribution structure 25 is mainly used to realize the switching between the second pipeline 16 and the fourth pipeline 28 in the water path. When the water tank 3 needs to intake water, it can connect the first connection port 21 to the second pipeline 16. When the water cup 36 needs to intake water, it can connect the first connection port 21 to the fourth pipeline 28. It can be integrally arranged on the water softener 20 or arranged separately;The water pump 26 is used to transport the water flow in the water tank 3 to the heat exchanger 7 through the first cold water pipeline 22, the second cold water pipeline 27, and the first flow path 311, and return it to the water tank 3 through the cold water outlet 6 to form a cold water flow cycle. It can be integrated with the water softener 20 to form an integrated structure, or it can be independently arranged; the second cold water pipeline 27 is used to connect the water pump 26 and the first flow path 311; the fourth pipeline 28 is used to connect the second pipeline 16 and the water inlet valve 19, and is also used to connect the third pipeline 23 and the inlet of the water cup 36 to realize the water inlet of the water cup 36; the inlet of the water cup 36 is used to connect the water cup 36 and is the water inlet interface of the water cup 36; the drain pump 30 is used to transport the water flow in the water cup 36 to the domestic sewage pipeline through the drainage anti-siphon structure 13 and the drainage pipeline 17. The drain pump 30 can also be used to directly transport the water flow in the water cup 36 to the domestic sewage pipeline.;

[0076] The first hot water pipe 31 is used to connect the second switching valve 32 and the third flow path 313 to realize hot water delivery; the second switching valve 32 is used to control the on / off between the second switching valve 32 and the second hot water pipe 33; the second hot water pipe 33 is used to connect the circulation pump 34 and the second switching valve 32. When the water distribution valve 35 is closed, opening the second switching valve 32 can realize that the water flows from the water cup 36, is pressurized by the circulation pump 34, and then enters the second hot water pipe 33, the second switching valve 32, the first hot water pipe 31, the third flow path 313, the heat exchanger 7, the fourth flow path 314, the fourth pipe 28, and the water cup 36, thus forming a hot water circulation loop; the circulation pump 34 is used to transport and heat the fluid; the water distribution valve 35 is used to realize water path switching, and can control the water flow to enter the lower spray arm 37 / middle spray arm 38 / upper spray arm 39 separately, or can be completely closed; the water cup 36 is mainly used to store / collect the water flow in the inner tank 40; the lower spray arm 37 is used to realize the spraying and washing of the lower spray arm 37; the middle spray arm 38 is used to realize the spraying and washing of the middle spray arm 38; the upper spray arm 39 is used to realize the spraying and washing of the upper spray arm 39; the inner tank 40 is used to form the frame, enclosure, support and other structures of the dishwasher; the fifth pipe 41 is used to connect the second channel 2 and the anti-siphon device 43, and is connected to the sixth pipe 42 through the anti-siphon device 43, finally realizing the connection between the water tank 3, the inner tank connection port 5, the fifth pipe 41 and the external space, so that the gas in the inner tank 40 can enter the atmosphere through the inner tank connection port 5, the second channel 2, the fifth pipe 41, the anti-siphon device 43, and the sixth pipe 42. In addition, the position where the fifth pipe 41 is connected to the anti-siphon device 43 is higher than the position where the fifth pipe 41 is connected to the second channel 2; the sixth pipe 42 is used to connect the anti-siphon device 43 and the external space, and the position where the sixth pipe 42 is connected to the anti-siphon device 43 is higher than the position where the anti-siphon device 43 is connected to the drain anti-siphon structure 13; the anti-siphon device 43 is used to connect the sixth pipe 42, the fifth pipe 41, and the drain anti-siphon structure 13. A check valve device is provided in the structure of the anti-siphon device 43 to ensure that the fluid in the drain anti-siphon structure 13 will not enter the fifth pipe 41 and the sixth pipe 42 through the anti-siphon device 43.

[0077] Such as Figure 2, the second channel 2 communicates with the inner tank connection port 5, the second channel 2 communicates with the fifth pipe 41, and the second channel 2 communicates with the water tank 3; the water tank 3 and the inner tank 40 are fixedly connected by screws, clamping positions, snap buttons, the structural inner tank connection port 5, etc., so that the inner tank connection port 5 communicates with the inner tank 40, the water tank 3 communicates with the water tank water inlet 4, the water tank 3 communicates with the cold water outlet 6, the water tank 3 communicates with the first cold water pipe 22, and the water tank 3 communicates with the third pipe 23; the heat exchanger 7 is assembled with the water tank 3 by plugging and unplugging to form an assembly relationship. The housing of the heat exchanger 7 can also be integrally formed with the water tank 3 by an integral molding process. It is arranged vertically as a whole, with its outer side flush with the outer side of the water tank 3. Its vertical position is between the inner tank connection port 5 and the bottom of the water tank 3, and it is arranged on the right side of the water tank 3; the water tank water inlet 4 does not communicate with the fifth pipe 41, and the water tank water inlet 4 is located above the fifth pipe 41; the third pipe 23 communicates with the first connection port 21; the water distribution structure 25 is arranged on the water softener 20 by a snap button; the first on-off valve 24 is arranged on the water tank 3 by a snap button; the water pump 26 is arranged on the water softener 20 by a snap button / screw; the fourth pipe 28 is arranged on the water cup 36 by a snap button; the second on-off valve 32 is independently arranged or can also be arranged on the water softener 20 by a snap button; the second pipe 16 does not communicate with the third pipe 23; the water inlet pipe 18 does not communicate with the drain pipe 17; the drain pipe 17 does not communicate with the first hot water pipe 31; the first hot water pipe 31 does not communicate with the fourth pipe 28 and the second cold water pipe 27; the fifth pipe 41 is arranged in the water tank 3 without blocking the integrity of the water tank 3, and the fluid in the water tank 3 in the upper and lower areas of the fifth pipe 41 can still communicate; the sixth pipe 42 and the anti-siphon device 43 and the structure formed by connecting the drain anti-siphon structure 13 divide the water tank 3 into two parts, and these two parts do not communicate; the anti-siphon device 43 is arranged on the water tank 3.

[0078] The working process under the ECO timing is as follows: Process 1: Before the washing process starts, open the water inlet valve 19, switch the water distribution structure 25 so that the water softener 20 is connected to the water distribution structure 25, and the tap water enters the water softener 20 through the water inlet pipe 18, the water inlet valve 19, the flow meter 14, the water inlet flow path 12, the one-way valve 11, and the first pipe 15 for softening treatment, and then enters the water tank 3 through the first connecting port 21, the water distribution structure 25, the second pipe 16, the water replenishment flow path 8, and the water tank water inlet 4. When the water volume reaches the set value (water volume range 2.9L-3.9L), close the water inlet valve 19, and the water tank 3 is filled with water. Process 2: When the main wash starts, the water tank 3 is drained, the first switch valve 24 is opened, the first connection port 21 in the water distribution structure 25 is connected with the fourth pipe 28, and the water flows from the water tank 3 through the first switch valve 24, the third pipe 23, the first connection port 21, the fourth pipe 28, and the inlet of the water cup 36 into the water cup 36. After the water is filled into the water cup 36 before the washing is completed, the first switch valve 24 is closed; 3-10 minutes before the end of the main wash, the water inlet valve 19 is opened, and the water distribution structure 25 is switched to make the soft water The water tank 3 is filled with water by the water distributor 20, and when the preset water volume is reached, the water inlet valve 19 is closed; the second switch valve 32 and the water pump 26 are opened, and the water distributor valve 35 is adjusted to the closed state, so that the water in the washing pump passes through the water cup 36, the second hot water pipe 33, the second switch valve 32, the first hot water pipe 31, and the third flow path 313 to enter the heat exchanger 7, and then passes through the fourth flow path 314, the inner tank connection port 5, and the inner tank 40 to return to the water cup 36 to complete the washing hot water circulation. When the water pump 26 is turned on, the water in the water tank 3 will pass through the first cold water pipe 22, the water pump 26, the second cold water pipe 27, and the first flow path 311 to the heat exchanger 7, and return to the water tank 3 through the cold water outlet 6 to complete the cold water circulation of the water tank 3.The cold water circulation and the hot water circulation exchange heat in the heat exchanger 7, transfer the heat in the hot water circulation to the cold water circulation, and finally store the heat in the water tank 3, and then complete the main washing sequence; Process three: When rinsing starts, open the water inlet valve 19, switch the water distribution structure 25 so that the water softener 20 is connected to the fourth pipeline 28. After the tap water passes through the water inlet pipeline 18, the water inlet valve 19, the flow meter 14, the water inlet flow path 12, the check valve 11, and the first pipeline 15, it enters the water softener 20 for softening treatment, and then enters the water cup 36 through the first connection port 21, the water distribution structure 25, the fourth pipeline 28, and the inlet of the water cup 36. After the water inlet is completed, cut off the power supply to the water inlet valve 19 and the water distribution structure 25, and start rinsing; Process four: When the second rinsing starts, the first switching valve 24 is opened, and the water tank 3 starts to drain water. The water flow passes through the third pipeline 23, the first switching valve 24, the fourth pipeline 28, and the inlet of the water cup 36 to enter the water cup 36, completing the water inlet of the water cup 36 before washing. Then close the first switching valve 24 and start the second rinsing until the washing is over; When drying starts, repeat Process one; Through the above process, part of the heat in the dishwasher during the washing process is transferred to the rinsing stage, completing the reuse of the heat of the dishwasher. At the same time, the water tank 3 will absorb heat from the environment during the water storage stage at the start of drying, raising the water temperature inside it to the ambient temperature. Therefore, it can reduce part of the thermal energy consumed in the subsequent heating process, playing an energy-saving role.

[0079] During the operation of the dishwasher, when draining water, the water flow, under the action of the drain pump 30, enters the sewage pipeline through the drain anti-siphon structure 13 and the drain pipeline 17. At this time, the one-way connection relationship between the sixth pipeline 42 and the anti-siphon device 43 can ensure the normal operation of the above process. When the water flow in the drain pipeline 17 flows back into the drain anti-siphon structure 13, at this time, the sixth pipeline 42 plays a role, making the water flow in the drain pipeline 17 unable to flow back into the drain anti-siphon structure 13; When the dishwasher performs high-temperature washing, the inner tank 40 is connected to the external space through the inner tank connection port 5, the second channel 2, the fifth pipeline 41, the anti-siphon device 43, and the sixth pipeline 42, which can release the pressure generated by the high temperature in the inner tank 40. Otherwise, it will cause the inner door of the dishwasher to be pushed open during high-temperature washing; In addition, the position where the fifth pipeline 41 is connected to the anti-siphon device 43 is higher than the position where the fifth pipeline 41 is connected to the second channel 2, which can ensure that when the water volume in the water tank 3 is too much, it can enter the inner tank 40 through the second channel 2 and the inner tank connection port 5, rather than entering the anti-siphon device 43 through the second channel 2 and the fifth pipeline 41.

[0080] By testing the dishwasher with the above heat exchange system and a conventional waste heat recovery dishwasher under the same working conditions, it can be found that for the heat exchange system of the present invention, under the condition of increasing the flow rate of the water pump 26, the time required for the same temperature rise is shorter.

[0081] A heat exchange system for energy saving of a dishwasher according to the present utility model has a more compact overall structure, a high degree of integration, fewer required connecting pipelines, and the required tooling time is also shortened accordingly. At the same time, the heat exchanger 7 used in the heat exchange system of the dishwasher of the present utility model is very small in volume, only 1 / 6 of a conventional heat exchanger 7, and it can be arranged in the water tank 3 or the base of the dishwasher relatively easily and flexibly.

[0082] A heat exchange system for energy saving of a dishwasher according to the present utility model can prevent backflow in the drain pipe 17 of the dishwasher, and can prevent the inner door of the dishwasher from opening due to excessive pressure during high-temperature washing.

[0083] In the present utility model, a similar heat exchange system design can be achieved by using a higher flow rate or entering a heat exchanger with a larger equivalent diameter. A similar heat exchange system design can also be achieved by adopting other processing methods to realize the same type of microscale heat exchange structure. It is also possible to achieve a similar energy-saving effect by using a larger or more water tanks 3.

[0084] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0085] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0086] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0087] In the present utility model, unless otherwise clearly specified or defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0088] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0089] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A water tank assembly for a dishwasher, characterized in that, The water tank assembly includes: A water tank (3), which is provided with a water storage space (301), a plurality of flow paths and a plurality of waterway interfaces, and at least a part of the plurality of waterway interfaces are respectively communicated with the plurality of flow paths; A heat exchanger (7), which is arranged in the water tank (3), and the heat exchanger (7) includes a first heat exchange channel and a second heat exchange channel. The first heat exchange channel communicates with the water storage space (301), and the second heat exchange channel is in heat exchange cooperation with the first heat exchange channel. The plurality of flow paths include heat exchange flow paths communicated with the first heat exchange channel and / or the second heat exchange channel.

2. The water tank assembly according to claim 1, wherein, The heat exchange flow path includes a first flow path (311), the plurality of waterway interfaces include a first interface (321) and a second interface (322). One end of the first heat exchange channel communicates with the water storage space (301), one end of the first flow path (311) communicates with the other end of the first heat exchange channel, the other end of the first flow path (311) communicates with the first interface (321), and the second interface (322) communicates with the water storage space (301).

3. The water tank assembly according to claim 1, characterized in that, The heat exchange flow path further includes a third flow path (313) and a fourth flow path (314), the plurality of waterway interfaces include a third interface (323) and a fourth interface (324). One end of the third flow path (313) communicates with one end of the second heat exchange channel and the other end communicates with the third interface (323), and one end of the fourth flow path (314) communicates with the other end of the second heat exchange channel and the other end communicates with the fourth interface (324).

4. The water tank assembly according to claim 3, characterized in that, The lower end of the second heat exchange channel communicates with the third flow path (313), and the upper end of the second heat exchange channel communicates with the fourth flow path (314); and / or, the plurality of flow paths further include a fifth flow path (315) and a sixth flow path (316). The lower end of the fifth flow path (315) communicates with the second heat exchange channel, and the upper end extends to the upper part of the water tank (3) and communicates with the external space of the water tank (3). The upper end of the sixth flow path (316) communicates with the upper end of the fifth flow path (315), and the lower end communicates with the fourth flow path (314).

5. The water tank assembly according to claim 1, characterized in that The plurality of flow paths further include a water inlet flow path (12), the plurality of waterway interfaces include a fifth interface (325) and a sixth interface (326), and the two ends of the water inlet flow path (12) are respectively connected to the fifth interface (325) and the sixth interface (326).

6. The water tank assembly according to claim 5, wherein The water inlet flow path (12) and the heat exchange flow path are respectively arranged on the left and right sides of the water storage space (301); and / or, at least a part of the water inlet flow path (12) inclines towards the heat exchange flow path in the top-down direction; and / or, at least a part of the heat exchange flow path inclines towards the water inlet flow path (12) in the top-down direction.

7. The water tank assembly according to claim 5, characterized in that, The plurality of flow paths further includes a make-up water flow path (8), and the plurality of waterway interfaces further includes a seventh interface (327). One end of the make-up water flow path (8) is provided at the upper end of the water storage space (301) and communicates with the water storage space (301), and the other end of the make-up water flow path (8) communicates with the seventh interface (327). The make-up water flow path (8) is provided on a side of the water storage space (301) close to the water inlet flow path (12).

8. The water tank assembly according to claim 1, wherein The plurality of waterway interfaces further includes an eighth interface (328). The eighth interface (328) communicates with the lower end of the water storage space (301). The water tank assembly further includes a first on-off valve (24) for opening and closing the eighth interface (328).

9. The water tank assembly according to claim 1, wherein The plurality of waterway interfaces are provided at the lower end of the water tank (3) and are arranged side by side in the left-right direction; and / or, the heat exchanger is provided on the side of the water storage space; and / or, the heat exchanger is vertically provided on the water tank in the length direction.

10. The water tank assembly according to claim 1, characterized in that, The heat exchanger includes a heat exchange space. A plurality of heat exchange tubes are provided at intervals in the heat exchange space. The first heat exchange channel is formed in the heat exchange tubes, and the second heat exchange channel is formed between the plurality of heat exchange tubes.

11. The water tank assembly according to claim 10, wherein, The water tank is integrally provided with the heat exchange space; or, the heat exchanger includes a housing, the heat exchange space is provided in the housing, and the housing is installed on the water tank.

12. A dishwasher, characterized in that, Comprising: A water cup (36); The water tank assembly according to any one of claims 1-11, wherein the second heat exchange channel communicates with the water cup (36).

13. The dishwasher according to claim 12, characterized in that, The dishwasher further includes a water softener (20). The water softener (20) is connected to the water tank assembly. The plurality of flow paths includes a water inlet flow path (12). The inlet of the water inlet flow path (12) is connected to a water source and the outlet communicates with the water softener (20).

14. The dishwasher according to claim 13, characterized in that, The water softener (20) is provided with a plurality of channels and a plurality of water tank interfaces. The plurality of water tank interfaces respectively communicate with the plurality of channels, and the plurality of water tank interfaces communicate with the plurality of waterway interfaces in a corresponding manner.

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