CN111685695A

CN111685695A - Dish washing machine

Info

Publication number: CN111685695A
Application number: CN202010065980.9A
Authority: CN
Inventors: 郭雨辰; 黄隆重; 许伟东; 黄宁杰
Original assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Current assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-09-22

Abstract

The application provides a dishwasher, which comprises a water softener and a heat recovery device. The heat recovery device comprises a water storage tank and a heat exchange pipe part. The inner chamber of storage water tank and the inner chamber looks interval of heat transfer pipe portion. The first communication device is connected between the heat recovery device and the inner container. In a first working state, the control system controls the first communication device to communicate the water outlet of the heat exchange pipe part and the water inlet of the inner container and simultaneously isolate the water outlet of the water storage tank and the water inlet of the inner container. In a second working state, the control system controls the first communication device to communicate the water outlet of the water storage tank and the water inlet of the inner container and simultaneously isolate the water outlet of the heat exchange pipe part and the water inlet of the inner container. The heat recovery device recovers the heat of the hot water in the inner container, heats the water in the water storage tank, saves the heating time and the power consumption, and saves the resources.

Description

Dish washing machine

Technical Field

The application relates to the field of household appliances, in particular to a dish washing machine.

Background

The dishwasher in the related art directly discharges the hot water generated in the hot water circulation washing stage, thereby wasting the heat in the hot water, and needing to reheat the cold water when the subsequent hot water circulation washing stage is carried out, thereby increasing the power consumption and wasting the energy. Therefore, how to achieve the purpose of energy saving of the dish washer becomes a problem to be solved urgently.

Disclosure of Invention

The application provides a dish washing machine, which comprises a water softener, a heat recovery device, an inner container, a control system, a first communication device and a first pump device, wherein the heat recovery device comprises a water storage tank and a heat exchange pipe part, an inner cavity of the water storage tank is separated from an inner cavity of the heat exchange pipe part, and the first communication device is connected between the heat recovery device and the inner container; the dishwasher has a first operating state and a second operating state, wherein:

in a first working state, the heat recovery device, the first communication device, the inner container and the first pump device are connected in series to form a loop; the control system controls the first communication device to communicate the water outlet of the heat exchange pipe part and the water inlet of the inner container and simultaneously separates the water outlet of the water storage tank and the water inlet of the inner container; the water storage tank stores softened water generated by the water softener; an inlet of the first pump device is communicated with a water outlet of the inner container, and an outlet of the first pump device is communicated with a water inlet of the heat exchange pipe part;

in a second working state, the control system controls the first communication device to communicate the water outlet of the water storage tank and the water inlet of the inner container and simultaneously isolate the water outlet of the heat exchange pipe part and the water inlet of the inner container.

When the dish washer of this application technical scheme moves first operating condition, the delivery port of the first intercommunication device of control system control heat transfer pipe portion and the water inlet of inner bag, cut off the delivery port of storage water tank and the water inlet of inner bag simultaneously, be favorable to making the inner bag water through the inner chamber that first pump unit got into heat transfer pipe portion, thereby be favorable to giving the heat recovery of the water in the inner bag softened water that the storage water tank was saved, when the dish washer moves second operating condition, the delivery port of heat transfer pipe portion cuts off with the water inlet of inner bag, the delivery port of storage water tank and the water inlet intercommunication of inner bag, the water entering of storage water tank the inner bag is favorable to having practiced thrift time and the power consumption to the heating of the water in the inner bag, has practiced thrift the resource.

Drawings

FIG. 1 is a schematic block diagram of a dishwasher in accordance with a first embodiment of the present application;

FIG. 2 is a schematic block diagram of a dishwasher according to a second embodiment of the present application;

FIG. 3 is a schematic block diagram of a dishwasher according to a third embodiment of the present application;

FIG. 4 is a schematic block diagram of a dishwasher according to a fourth embodiment of the present application;

FIG. 5 is a schematic block diagram of a dishwasher according to a fifth embodiment of the present application;

FIG. 6 is a perspective view of a dishwasher in accordance with an embodiment of the present application;

FIG. 7 is a schematic view of the water hose assembly of FIG. 6 assembled with a bladder wall of a liner of a dishwasher;

FIG. 8 is an enlarged view of the circled portion of the assembled view shown in FIG. 7;

FIG. 9 is an exploded view of the water softener of the dishwasher shown in FIG. 7, wherein the insulating spacer between the first and second electrode sheets is eliminated for clarity in illustrating the structures of the first and second electrode sheets;

FIG. 10 is an exploded view of an electrode assembly of the water softener shown in FIG. 9;

fig. 11 is a schematic sectional view of the water softener shown in fig. 9.

Reference numerals: a water inlet valve 1; a respirator 2; a water softener 3; a heat recovery device 4; an inner container 5; a first pump device 6; a drain pipe 7; a third communication means 30; a seventh port 301; an eighth port 302; a ninth port 303; a first communication means 40; a water storage tank 41; the heat exchange tube portion 42; a first port 401; a second port 402; a third port 403; a flushing circulation system 50; the second communication means 60; a fourth port 601; a fifth port 602; a sixth port 603; a second pump device 501; a circulation pump 5010; a heating device 5011; a spray device 502; a circulating water outlet 51; a booster pump 90; a conductivity detection device 91; a fourth communication means 92; a tenth port 920; an eleventh port 921; a twelfth port 922; a host 80; a door 81; an inner container 801; a process chamber 8010; a housing 32; a first elastic sheet 33; a second elastic sheet 34; an electrode pad assembly 35; a first fixing member 39; a second fixing member 38; a first housing 320; a second housing 321; a receiving space 322; a bottom wall 3201; a water outlet 3202; a water inlet 3203; a first aperture 3204; a second aperture 3205; a first recess 3206; a second recess 3207; side walls 3208; the first electrode sheet 351; a second electrode pad 352; a first through hole 340; the second through hole 354; first protrusion 3510; second protrusion 3520; a first conductive block assembly 355; a second conductive block assembly 356; a first clamp 3550; a second clamp 3551; a first electrically conductive member 3552; a second conductive member 3553; a first penetration hole 35101; a second penetration hole 35201; a third penetration hole 35501; a fourth penetration hole 35510; a fifth penetration hole 35511; a third clamp 3561; a fourth clamp 3562; a third electrically conductive member 3560; a fourth conductive member 3563; a sixth penetration hole 35610; a seventh penetrating hole 35620; eighth penetration 35621

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the use of "first," "second," and similar terms in the description and claims do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Similarly, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one; similarly, "plurality" or "multiple layers" etc. means two or more than two. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items.

The following describes exemplary embodiments of the present application in detail with reference to the drawings. In the following embodiments, features of the embodiments can be supplemented with each other or combined with each other without conflict.

The embodiment of the application provides a dishwasher, which comprises a water softener 3, a heat recovery device 4, an inner container 5, a control system, a first communication device 40 and a first pump device 6. The heat recovery device 4 includes a water storage tank 41 and a heat exchange pipe portion 42. The inner cavity of the water storage tank 41 is spaced from the inner cavity of the heat exchange pipe portion 42. The heat exchange pipe portion 42 may be a heat exchange pipe at least partially extending into the inner cavity of the water storage tank 41, or the heat exchange pipe portion 42 may be integrally formed with the water storage tank 41. A first communication device 40 is connected between the heat recovery device 4 and the inner container 5, in one mode, the first communication device 40 comprises a first port 401, a second port 402 and a third port 403, and the first port 401 is communicated with a water outlet of the water storage tank 41; the second port 402 is communicated with the water outlet of the heat exchange pipe part 42; the third port 403 communicates with the water inlet of the inner container 5. The dishwasher has a first operating state and a second operating state, wherein:

in a first working state, the heat recovery device 4, the liner 5 and the first pump device 6 are connected in series to form a loop; the control system controls the first port 401 and the third port 403 of the first communicating device 40 to be isolated, and the second port 402 is communicated with the third port 403, so that the first communicating device 40 communicates the water outlet of the heat exchange pipe part 42 and the water inlet of the inner container 5, and simultaneously isolates the water outlet of the water storage tank 41 and the water inlet of the inner container 5, the water storage tank 41 stores the softened water generated by the water softener 3, and the water inlet of the heat exchange pipe part 42 is communicated with the water outlet of the inner container 5 through the first pump device 6.

In the second working state, the control system controls the second port 402 and the third port 403 of the first communication device 40 to be isolated, and the first port 401 and the third port 403 are communicated, so that the first communication device 40 communicates the water outlet of the water storage tank 41 and the water inlet of the liner 5, and simultaneously isolates the water outlet of the heat exchange pipe part 42 and the water inlet of the liner 5.

Referring to fig. 1, the dishwasher of the first embodiment of the present application includes a water inlet valve 1, a breather 2, a water softener 3, a third communication means 30, a heat recovery means 4, a first communication means 40, a tub 5, a first pump means 6, a second communication means 60, a drain pipe 7, and a washing cycle system 50 connected to the tub 5, which are connected together. The dishwasher further comprises a control system (not shown).

The heat recovery device 4 includes a water storage tank 41 and a heat exchange pipe portion 42. The inner cavity of the water storage tank 41 is spaced from the inner cavity of the heat exchange pipe portion 42. The first communication device 40 is connected between the heat recovery device 4 and the inner container 5. The first communication device 40 comprises a first port 401, a second port 402 and a third port 403. The first port 401 communicates with the outlet of the storage tank 41. The second port 402 communicates with the outlet of the heat exchange tube portion 42. The third port 403 communicates with the water inlet of the inner container 5. The dishwasher has a first operating state and a second operating state.

In the first operating state, the heat recovery device 4, the liner 5 and the first pump device 6 are connected in series to form a loop. The control system controls the first port 401 and the third port 403 of the first communication device 40 to be isolated, and the second port 402 is communicated with the third port 403, so that the first communication device 40 communicates the water outlet of the heat exchange pipe part 42 with the water inlet of the inner container 5, and isolates the water outlet of the water storage tank 41 from the water inlet of the inner container 5. The water storage tank 41 stores softened water generated by the water softener 3. The outlet of the first pump device 6 is communicated with the water inlet of the heat exchange pipe part 42, the inlet of the first pump device 6 is communicated with the water outlet of the inner container 5, that is, the water inlet of the heat exchange pipe part 42 is communicated with the water outlet of the inner container 5 through the first pump device 6, and after the hot water circulation flushing stage is finished, the hot water in the inner container 5 can flow into the heat exchange pipe part 42 to heat the softened water of the water storage tank 41.

In the second working state, the control system controls the second port 402 and the third port 403 of the first communication device 40 to be isolated, and the first port 401 and the third port 403 are communicated, so that the first communication device 40 communicates the water outlet of the water storage tank 41 and the water inlet of the inner container 5, and simultaneously isolates the water outlet of the heat exchange pipe part 42 and the water inlet of the inner container 5, and the softened water in the water storage tank 41 can flow into the inner container 5 to clean the bowls.

The second communication device 60 includes a fourth port 601, a fifth port 602, and a sixth port 603. The fourth port 601 communicates with the first pump device 6. The fifth port 602 communicates with the drain pipe 7. The sixth port 603 communicates with the water inlet of the heat exchange tube part 42. The dishwasher further comprises a third operating state and a fourth operating state.

In the third working state, the control system controls the fourth port 601 and the sixth port 603 of the second communication device 60 to be isolated, and the fourth port 601 and the fifth port 602 are communicated, so that the second communication device 60 communicates the water outlet of the inner container 5 with the water discharge pipe 7 through the first pump device 6, and simultaneously isolates the water outlet of the inner container 5 from the water inlet of the heat exchange pipe part 42, and the water in the inner container 5 is discharged from the water discharge pipe 7.

In the fourth operating state, the control system controls the fourth port 601 and the fifth port 602 of the second communication device 60 to be blocked, and controls the fourth port 601 and the sixth port 603 to be blocked, so that the second communication device 60 blocks the water outlet of the inner container 5 from the water inlet of the heat exchange pipe portion 42, and simultaneously blocks the water outlet of the inner container 5 from the water discharge pipe 7. After the water in the inner container 5 is discharged from the water discharge pipe 7, the inner container 5 is separated from the water discharge pipe 7, and the inner container 5 is separated from the heat exchange pipe part 42.

The dishwasher further includes a temperature sensing device (not shown) provided in the water storage tank 41. The temperature detection means is used to detect the temperature of the water in the water storage tank 41. Before the temperature of the water in the water storage tank 41 reaches a threshold value, the water in the inner container 5 continuously circulates between the heat exchange tube part 42 and the inner container 5 to heat the softened water in the water storage tank 41; when the temperature of the water in the water tank 41 reaches a threshold value, the water flowing out of the inner tub 5 is discharged through the drain pipe 7, and the heat recovery operation is finished. The temperature detecting means may be provided in the heat exchange pipe part 42 or the first communicating means 40 to detect the temperature of the water flowing out of the heat exchange pipe part 42 to control the end of the heat recovery operation.

In other embodiments, the dishwasher may further include a counter to count the number of times the water in the inner tub 5 circulates between the heat exchange tube part 42 and the inner tub 5 to control the end of the heat recovery operation. Alternatively, the dishwasher may further include a timer to count the time for which the water in the inner tub 5 circulates between the heat exchange tube part 42 and the inner tub 5 to control the end of the heat recovery operation.

In a specific relevant scene, the dishwasher further comprises a start key opened for a user to use, and after the start key is started, the dishwasher can start the relevant functions of the heat recovery device 4, so that the dishwasher runs in a first working state and a second working state, and the user can select whether to start the heat recovery device 4 according to actual requirements, so that the washing time of the dishwasher is saved, and the flexible use requirement is met.

The control system is also used for controlling the dishwasher to sequentially run a first working state, a third working state, a fourth working state and a second working state after the first hot water circulation washing stage is finished and before the second hot water circulation washing stage is started. The first hot water circulation washing stage can be a main washing stage, and the second hot water circulation washing stage can be a hot rinsing stage.

The third communication device 30 includes a seventh port 301, an eighth port 302, and a ninth port 303. The seventh port 301 communicates with the water outlet of the water softener 3. The eighth port 302 communicates with the water inlet of the water storage tank 41. The ninth port 303 communicates with the water inlet of the inner bag 5. The dishwasher also has a fifth operating state and a seventh operating state.

In the fifth working state, the control system controls the seventh port 301 and the ninth port 303 of the third communication device 30 to be isolated, and the seventh port 301 and the eighth port 302 are communicated, so that the third communication device 30 communicates the water outlet of the water softener 3 with the water inlet of the water storage tank 41, and the softened water of the water softener 3 can enter the water storage tank 41.

In the seventh operating state, the control system controls the seventh port 301 and the eighth port 302 of the third communication device 30 to be isolated, and the seventh port 301 and the ninth port 303 are communicated, so that the third communication device 30 switches the water outlet of the water softener 3 to be communicated with the water inlet of the inner container 5. The benefit of doing so lies in, the demineralized water that water softener 3 produced on the one hand can not pass through heat reclamation device 4 to demineralized water can directly get into inner bag 5 is in order to wash the tableware, can practice thrift the time of washing the dishes, and on the other hand, water softener 3 can be the water softener of electric capacity deionization type, and this type water softener can produce normal demineralized water under some mains voltage direction application condition, and the regeneration process is carried out in the condition of other mains voltage direction application scenes, and the regeneration process can produce the hard water that the water quality hardness is higher, and hard water is difficult to produce the incrustation scale under relative cold water temperature, when dish washer operation cold water washing stage, for example the prewashing stage, can adopt regenerated hard water to wash.

The rinse cycle system 50 includes a second pump arrangement 501 and a spray arrangement 502 for spraying water to wash the dishes. The inner container 5 also has a circulating water outlet 51. The water inlet of the second pump means 501 is connected to the circulating water outlet 51. The outlet of the second pump device 501 is connected with a spray device 502. The water sprayed by the spraying device 502 enters the inner container 5. The circulating water outlet 51 and the water outlet of the liner 5 may be the same, or may be different water outlets, which is not limited in this application. The second pump device 501 comprises a circulating pump 5010 and a heating device 5011 integrated with the circulating pump 5010, the heating device 5011 is used for heating water in a pump cavity of the circulating pump 5010, the inner container 5 is further provided with a circulating water outlet 51, a water inlet of the circulating pump 5010 is communicated with the circulating water outlet 51, a water outlet of the circulating pump 5010 is communicated with an inner cavity of the inner container 5 through a spraying device 501, and the spraying device 501 is used for spraying and washing tableware placed in the inner cavity of the inner container 5. In a specific embodiment, the heating device 5011 extends at least partially into the pump chamber of the circulation pump 5010 in order to heat the water entering the pump chamber, or the heating device 5011 is arranged at least partially outside the pump housing of the circulation pump 5010, and transfers heat to the water in the pump chamber of the circulation pump 5010 through the pump housing, with the ultimate aim of raising the temperature of the water in the inner container to a predetermined temperature range.

In the above, the first communication device 40, the second communication device 60 and the third communication device 30 may be three-way valves or two-way valves, and the three-way valves may be three-way ball valves.

In the embodiment shown in the figure, when the dishwasher is operated, tap water enters the water softener 3 for water softening after passing through the water inlet valve 1 and the respirator 2, and the softened water can directly enter the inner container 5 to clean bowls or enter the inner container 5 by adopting regenerated hard water at the stage of cold water washing; or the softened water can enter the water storage tank 41, and the water in the water storage tank 41 can enter the inner container to clean bowls. When the heat recovery device 4 is operated, the hot water in the inner container 5 enters the heat exchange pipe part 42 to heat the water in the water storage tank 41, and after the heat recovery device 4 is operated, the water in the inner container 5 is discharged from the water discharge pipe 7. The heated water in the water storage tank 41 enters the inner container 5 to clean the bowl. When the heat recovery device 4 operates in the first working state, the heat of the hot water in the inner container 5 is recovered, the water in the water storage tank 41 is heated, the temperature of the water in the water storage tank 41 is increased, and after the water in the water storage tank 41 enters the inner container 5, the heating time and the power consumption are saved, and the resources are saved. When the heat recovery device 4 does not operate the heat recovery process, the water storage tank 41 may be used as a general water tank to store softened water.

Referring to fig. 2, the dishwasher of the second embodiment is different from the dishwasher of the first embodiment in that: the ninth port 303 of the third communication device 30 communicates with the drain pipe 7. The dishwasher comprises a sixth operating state in which the control system controls the third communication means 30 to block the seventh port 301 and the eighth port 302, and the seventh port 301 and the ninth port 303 are communicated, so that the third communication means 30 switches the water outlet of the water softener 3 to communicate with the water outlet pipe 7. The regenerated hard water generated from the water softener 3 is discharged through the drain pipe 7.

Referring to fig. 3, in the third embodiment, the dishwasher includes a pressurizing pump 90, the pressurizing pump 90 is connected between the breather 2 and the water softener 3, an inlet and an outlet of the breather 2 are respectively communicated with an outlet of the water inlet valve 1 and an inlet of the pressurizing pump 90, and an inlet and an outlet of the pressurizing pump 90 are respectively communicated with an outlet of the breather 2 and an inlet of the water softener 3. The booster pump 90 is used to solve the problem of too small water flow caused by too large pressure loss. In other embodiments, the booster pump 90 may be located between the heat recovery device 4 and the liner 5. In other embodiments, the respirator may be eliminated and the water inlet valve 1 is directly connected to the water inlet of the water softener 3 to prevent the problem that the pressure loss is too large, which causes the water flow to fail to enter the module behind the respirator normally, resulting in interruption of the dishwashing process.

Referring to fig. 4, in the fourth embodiment, the dishwasher includes a conductivity detection device 91 provided at the water outlet of the water softener 3, the conductivity detection device 91 being used to monitor the conductivity of the water quality at the water outlet of the water softener 3, which may reflect the hardness of the water quality to some extent.

Referring to fig. 5, in the fifth embodiment, the dishwasher includes a fourth communication device 92, and the fourth communication device 92 includes a tenth port 920, an eleventh port 921, and a twelfth port 922. The tenth port 920 is communicated with the outlet of the water inlet valve 1, the eleventh port 921 is communicated with the inlet of the water softener 3, and the twelfth port 922 is communicated with the inlet of the inner container 5. The dishwasher also has an eighth operating state and a ninth operating state.

In the eighth working state, the control system controls the tenth port 920 and the twelfth port 922 of the fourth communication device 92 to communicate with each other, so that the fourth communication device 92 communicates the water outlet of the water inlet valve 1 with the water inlet of the inner container 5, and tap water can enter the inner container 5 to clean bowls. At this time, the tenth port 920 and the eleventh port 921 may be connected or disconnected, and may be set according to a specific application scenario.

In the ninth operating state, the control system controls the communication between the tenth port 920 and the eleventh port 921 of the fourth communication means 92, so that the fourth communication means 92 communicates the outlet of the water inlet valve 1 with the inlet of the water softener 3, and tap water can enter the water softener 3 for softening.

Referring to fig. 6 to 8, the dishwasher according to the embodiment of the present application includes a main unit 80 and a door 81 connected to the main unit 80. The door 81 can be opened and closed to put dishes to be washed. The host 80 includes a bladder 801. The dishes to be cleaned are placed in the treatment chamber 8010 and the dishwasher is ready to clean the dishes. A shower unit 502 is located in the chamber 100 and sprays water to clean dishes. The water softener 3 includes a first fixture 39, and the dishwasher includes a second fixture 38 fixed to the first fixture 39 to fix the water softener 3 to the tub 801. The liner 801 has a processing chamber 8010. After the second fixing element 38 is sleeved on the first fixing element 39, it is fixed to the first fixing element 39 by means of screw connection.

Referring to fig. 9 to 11, the water softener 3 includes a housing 32, first and second

elastic pieces

33 and 34, and an electrode sheet assembly 35 between the first and second

elastic pieces

33 and 34. The housing 32 includes a first housing 320 and a second housing 321 secured together. The first housing 320 and the second housing 321 enclose a receiving space 322. The first elastic piece 33, the second elastic piece 34, and the electrode sheet assembly 35 are located in the housing space 322. The electrode plate assembly 35 is located between the first elastic sheet 33 and the second elastic sheet 34, and the first elastic sheet 33 and the second elastic sheet 34 can adjust the pressure of the first casing 320 and the second casing 321 on the electrode plate assembly 35. The first elastic sheet 33 and the second elastic sheet 34 are made of a non-water-absorbing elastic material, for example, a silicone sheet, a silicone gasket, a rubber pad, or a rubber gasket.

The first housing 320 includes a bottom wall 3201, a water outlet 3202 disposed on the bottom wall 3201, a water inlet 3203, a first hole 3204, a second hole 3205, a first recess 3206 and a second recess 3207, and a plurality of side walls 3208 extending from the bottom wall 3201 toward the second housing 321. The second housing 321 covers the sidewall 3208 to form the receiving space 322.

The electrode sheet assembly 35 comprises a plurality of first electrode sheets 351, a plurality of second electrode sheets 352 and a plurality of insulating spacers 353. The polarities of the first electrode sheet 351 and the second electrode sheet 352 are opposite to each other, and the plurality of first electrode sheets 351 and the plurality of second electrode sheets 352 are stacked at intervals. The insulating spacer 353 is located between the first electrode plate 351 and the second electrode plate 352, and the insulating spacer 353 can prevent the pressure between the two electrode plates from being too high, so that a channel for water to pass through is formed by a net structure of the insulating spacer 353. The second elastic sheet 34 includes a first through hole 340 communicating with the water outlet port 3202, and the plurality of first electrode sheets 351 and the plurality of second electrode sheets 352 include second through holes 354 communicating with the first through hole 340, respectively, for water to flow out. The second through hole 354, the first through hole 340 and the water outlet port 3202 are aligned.

The plurality of first electrode pads 351 respectively include first protrusions 3510, and the plurality of second electrode pads 352 respectively include second protrusions 3520. The electrode pad assembly 35 also includes a first conductive block assembly 355 and a second conductive block assembly 356. The first conductive block assembly 355 is electrically connected to the plurality of first protrusions 3510, and the second conductive block assembly 356 is electrically connected to the plurality of second protrusions 3520.

The first conductive block assembly 355 includes a first clamping member 3550, a second clamping member 3551, a first conductive member 3552, and a second conductive member 3553. The plurality of first protrusions 3510 are located between the first clamping member 3550 and the second clamping member 3551 to be clamped by the first clamping member 3550 and the second clamping member 3551. The plurality of first protrusions 3510 include first penetration holes 35101, respectively, and the plurality of second protrusions 3520 include second penetration holes 35201, respectively.

The first clamp 3550 includes a third through hole 35501. The second clamping member 3551 includes a fourth penetrating hole 35510 and a fifth penetrating hole 35511. The fourth penetrating hole 35510 is disposed to be offset from the fifth penetrating hole 35511. The first conductive member 3552 sequentially penetrates through the third penetrating hole 35501 and the plurality of first penetrating holes 35101 and then is assembled into the fourth penetrating hole 35510. The second clamping piece 3551 is partially accommodated in the second recess 3207, so that the electrode sheet assembly 35 is prevented from shaking in the accommodating space 322; meanwhile, the accurate position of the electrode plate assembly 35 is determined, and the alignment of the first through hole 340 of the second elastic plate 34, the second through hole 354 of the electrode plate assembly 35 and the water outlet 3202 of the first housing 320 is facilitated.

One end of the second conductive member 3553 is assembled into the fifth penetrating hole 35511, and the other end thereof penetrates out of the second hole 3205 to be connected to a positive electrode or a negative electrode of an external power source. The first conductive member 3552 is electrically connected to the plurality of first protrusions 3510, and the second conductive member 3553 is electrically connected to the first conductive member 3552 through the second clamping member 3551.

The second conductive block assembly 356 includes a third clamping member 3561, a fourth clamping member 3562, a third conductive member 3560, and a fourth conductive member 3563. A plurality of second protrusions 3520 are located between the third and

fourth clamping members

3561 and 3562 to be clamped by the third and

fourth clamping members

3561 and 3562. The fourth clamping piece 3562 is partially accommodated in the first recess 3206, so that the electrode pad assembly 35 is prevented from shaking in the accommodating space 322; meanwhile, the accurate position of the electrode plate assembly 35 is determined, and the alignment of the first through hole 340 of the second elastic plate 34, the second through hole 354 of the electrode plate assembly 35 and the water outlet 3202 of the first housing 320 is facilitated.

The third clamp 3561 includes a sixth penetration hole 35610. The fourth clamping member 3562 includes a seventh through hole 35620 and an eighth through hole 35621. The seventh penetrating hole 35620 is disposed to be offset from the eighth penetrating hole 35621. The third conductive member 3560 sequentially passes through the sixth penetrating hole 35610 and the plurality of second penetrating holes 35201 and then is assembled into the seventh penetrating hole 35620. One end of the fourth conductive member 3563 is assembled into the eighth penetrating hole 35621, and the other end thereof penetrates out of the first hole 3204 to be connected to an external power source. The third conductive member 3560 is electrically connected to the plurality of second protrusions 3520, and the fourth conductive member 3563 is electrically connected to the third conductive member 3560 through the fourth clamping member 3562.

The second conductive member 3553 and the fourth conductive member 3563 are respectively connected to the positive and negative electrodes of an external power source. When the water softener 3 is used, water enters from the water inlet 3203 and passes through the water flow channel, and then under the action of an electric field, electric ions such as calcium, magnesium and the like in the water are removed through capacitive adsorption.

In other embodiments, the first conductive block element 355 may be directly clamped to the plurality of first protrusions 3510 and electrically connected to the plurality of first protrusions 3510, and the second conductive block element 356 may be directly clamped to the plurality of second protrusions 3520 and electrically connected to the plurality of second protrusions 3520. The present application does not limit the assembly and fixing manner of the first conductive block assembly 355 and the first protrusion 3510 and the second conductive block assembly 356 and the second protrusion 3520.

In other embodiments, the water softener 3 may be a resin water softener, and calcium and magnesium ions in water are adsorbed by resin to soften the water.

The dishwasher of the technical scheme comprises a water softener 3 and a heat recovery device 4. When the heat recovery device 4 operates, the heat of the hot water in the inner container 5 is recovered, the water in the water storage tank 41 is heated, the temperature of the water in the water storage tank 41 is increased, and after the water in the water storage tank 41 enters the inner container 5, the heating time and the power consumption are saved, and the resources are saved.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims

1. A dishwasher is characterized by comprising a water softener (3), a heat recovery device (4), an inner container (5), a control system, a first communication device (40) and a first pump device (6), wherein the heat recovery device (40) comprises a water storage tank (41) and a heat exchange pipe part (42), an inner cavity of the water storage tank (41) is separated from an inner cavity of the heat exchange pipe part (42), and the first communication device (40) is connected between the heat recovery device (4) and the inner container (5); the dishwasher has a first operating state and a second operating state, wherein:

in a first working state, the heat recovery device (4), the first communication device (40), the liner (5) and the first pump device (6) are connected in series to form a loop; the control system controls the first communication device (40) to communicate the water outlet of the heat exchange pipe part (42) with the water inlet of the inner container (5) and simultaneously cuts off the water outlet of the water storage tank (41) and the water inlet of the inner container (5); the water storage tank (41) stores softened water generated by the water softener (3); the inlet of the first pump device (6) is communicated with the water outlet of the inner container (5), and the outlet of the first pump device (6) is communicated with the water inlet of the heat exchange pipe part (42);

in a second working state, the control system controls the first communication device (40) to communicate the water outlet of the water storage tank (41) and the water inlet of the inner container (5) and simultaneously cuts off the water outlet of the heat exchange pipe part (42) and the water inlet of the inner container (5).

2. The dishwasher of claim 1, characterized in that the first communication means (40) comprises a first port (401), a second port (402) and a third port (403), the first port (401) communicating with an outlet of the water storage tank (41); the second port (402) is communicated with the water outlet of the heat exchange pipe part (42); the third port (403) is communicated with the water inlet of the inner container (5);

in the first working state, the control system controls the first port (401) and the third port (403) of the first communication device (40) to be isolated, and the second port (402) is communicated with the third port (403); in the second working state, the control system controls the second port (402) and the third port (403) of the first communication device (40) to be isolated, and the first port (401) and the third port (403) are communicated.

3. The dishwasher of claim 1 or 2, wherein the water softener (3) comprises a housing (32) and an electrode sheet assembly (35) at least partially installed in a receiving space (322) formed by the housing (32), the electrode sheet assembly (35) comprises a plurality of first electrode sheets (351) and a plurality of second electrode sheets (352), the first electrode sheets (351) and the second electrode sheets (352) have opposite electrical polarities, the plurality of first electrode sheets (351) and the plurality of second electrode sheets (352) are alternately arranged, and a water flow channel is formed between the first electrode sheets (351) and the adjacent second electrode sheets (352).

4. The dishwasher according to claim 1 or 2, characterized in that it comprises a drain pipe (7) and a second communication device (60), said second communication device (60) comprising a fourth port (601), a fifth port (602) and a sixth port (603), said fourth port (601) communicating with an outlet of said first pump device (6), said fifth port (602) communicating with said drain pipe (7), said sixth port (603) communicating with a water inlet of said heat exchange pipe portion (42); the dishwasher further comprises a third operating state and a fourth operating state;

in the third working state, the control system controls the fourth port (601) and the sixth port (603) of the second communication device (60) to be isolated, and the fourth port (601) and the fifth port (602) are communicated, so that the second communication device (60) communicates the water outlet of the inner container (5) and the water inlet of the water discharge pipe (7) through a first pump device (6) and simultaneously isolates the water outlet of the inner container (5) and the water inlet of the heat exchange pipe part (42);

in the fourth working state, the control system controls the fourth port (601) and the fifth port (602) of the second communication device (60) to be isolated, and the fourth port (601) and the sixth port (603) to be isolated, so that the second communication device (60) isolates the water outlet of the inner container (5) from the water inlet of the heat exchange pipe part (42) and simultaneously isolates the water outlet of the inner container (5) from the water discharge pipe (7).

5. The dishwasher of claim 4, wherein the control system is further configured to control the dishwasher to sequentially operate the first operating state, the third operating state, the fourth operating state, and the second operating state after a first hot water cycle rinse phase is completed and before a second hot water cycle rinse phase is initiated.

6. The dishwasher of any one of claims 1 to 4, comprising a third communication means (30), the third communication means (30) comprising a seventh port (301), an eighth port (302) and a ninth port (303), the seventh port (301) being in communication with the water outlet of the water softener (3); the eighth port (302) communicates with the water inlet of the water storage tank (41); the ninth port (303) is in communication with the drain pipe (7);

the dishwasher further has a fifth operating state and a sixth operating state;

in a fifth working state, the control system controls the third communication device (30) to be isolated between the seventh port (301) and the ninth port (303), and the seventh port (301) and the eighth port (302) are communicated, so that the third communication device (30) is communicated with the water outlet of the water softener (5) and the water inlet of the water storage tank (41);

in a sixth working state, the control system controls the seventh port (301) and the eighth port (302) of the third communication device (30) to be isolated, and the seventh port (301) and the ninth port (303) are communicated, so that the third communication device (30) switches the water outlet of the water softener (3) to be communicated with the water outlet pipe (7).

7. The dishwasher of any one of claims 1 to 4, comprising a third communication means (30), the third communication means (30) comprising a seventh port (301), an eighth port (302) and a ninth port (303), the seventh port (301) being in communication with the water outlet of the water softener (3); the eighth port (302) communicates with the water inlet of the water storage tank (41); the ninth port (303) is communicated with a water inlet of the inner container (5);

the dishwasher further has a fifth operating state and a seventh operating state;

in a fifth working state, the control system controls the third communication device (30) to be isolated between the seventh port (301) and the ninth port (303), and the seventh port (301) and the eighth port (302) are communicated, so that the third communication device (30) is communicated with the water outlet of the water softener (3) and the water inlet of the water storage tank (41);

in a seventh working state, the control system controls the seventh port (301) and the eighth port (302) of the third communication device (30) to be isolated, and the seventh port (301) and the ninth port (303) are communicated, so that the third communication device (30) switches the water outlet of the water softener (3) to be communicated with the water inlet of the inner container (5).

8. The dishwasher according to claim 6, characterized in that it comprises a water inlet valve (1) and a fourth communication means (92), the fourth communication means (92) comprising a tenth port (920), an eleventh port (921) and a twelfth port (922), the tenth port (920) being in communication with the water outlet of the water inlet valve (1), the eleventh port (921) being in communication with the water inlet of the water softener (3), the twelfth port (922) being in communication with the water inlet of the inner tub (5); the dishwasher also has an eighth operating state and a ninth operating state;

in an eighth working state, the control system controls the communication between the tenth port (920) and the twelfth port (922) of the fourth communication device (92), so that the fourth communication device (92) communicates the outlet of the water inlet valve (1) and the inlet of the inner container (5);

in a ninth working state, the control system controls the communication between the tenth port (920) and the eleventh port (921) of the fourth communication device (92), so that the fourth communication device (92) communicates the outlet of the water inlet valve (1) and the inlet of the water softener (3).

9. The dishwasher of claim 8, comprising a breather (2) and a booster pump (90), wherein an inlet and an outlet of the breather (2) are respectively communicated with an outlet of the water inlet valve (1) and an inlet of the booster pump (90), and an inlet and an outlet of the booster pump (90) are respectively communicated with an outlet of the breather (2) and an inlet of the water softener (3).

10. The dishwasher of claim 1, comprising a conductivity detection device (91) provided at the water outlet of the water softener (3), the conductivity detection device (91) being configured to monitor the hardness of the water at the water outlet of the water softener (3); the dishwasher further comprises a second pump device (501) and a spraying device (502) which are connected, wherein the second pump device (501) comprises a circulating pump (5010) and a heating device (5011) which is integrated with the circulating pump (5010), and the heating device (5011) is used for heating water in a pump cavity of the circulating pump (5010); the inner container (5) is also provided with a circulating water outlet (51), the water inlet of the circulating pump (5010) is communicated with the circulating water outlet (51), the water outlet of the circulating pump (5010) is communicated with the inner container (5) through the spraying device (501), and the spraying device (501) is used for spraying and washing tableware placed in the inner container (5).