Dishwasher

Abstract

The embodiment of the utility model provides a dish washing machine. The dish washing machine comprises a water softener, a water tank, a washing device, a steam generator, a reversing valve and a controller. The water tank is provided with a first containing cavity, a second containing cavity and an overflow opening, the first containing cavity communicates with the second containing cavity through the overflow opening, and the first containing cavity communicates with the water softener. One end of the steam generator is communicated with the second accommodating cavity, and the other end of the steam generator is communicated with the washing cavity; the reversing structure is communicated with the water outlet end of the water softener. The water softener, the reversing structure, the water tank, the steam generator and the washing device are sequentially communicated to form a first water supply waterway, the water softener, the reversing structure and the washing device are communicated to form a second water supply waterway, and the reversing structure is used for switching the first water supply waterway and the second water supply waterway. The technical scheme can prolong the service life of the steam generator and improve the reliability of the dish-washing machine.

Description

Technical Field

[0001] This application relates to the field of washing equipment technology, and in particular to a dishwasher. Background Technology

[0002] Nowadays, with the upgrading of consumption, users expect a higher quality and healthier life, making dishwashers increasingly popular as a luxury kitchen appliance. As the dishwasher industry develops, consumers not only have higher requirements for cleanliness but also for sterilization. Steam washing uses high-temperature steam to break down grease on tableware, resulting in better cleaning while simultaneously sterilizing.

[0003] In related technologies, when there are problems with the water supply source to the steam generator, the water circuit of the steam generator is easily contaminated, which can easily cause blockages, shorten the service life of the steam generator, and result in poor system stability. Utility Model Content

[0004] This application provides a dishwasher that can extend the service life of the steam generator, prevent clogging, and improve the stability of the dishwasher.

[0005] The dishwasher proposed in this application includes:

[0006] Water softener;

[0007] The water tank has a first receiving cavity, a second receiving cavity, and an overflow port. The first receiving cavity and the second receiving cavity are connected through the overflow port. The first receiving cavity is used to connect to the water softener.

[0008] Washing device, having a washing chamber;

[0009] A steam generator, one end connected to the second receiving chamber and the other end connected to the washing chamber to provide steam; and

[0010] A reversing structure connects to the outlet end of the water softener;

[0011] The water softener, the reversing structure, the water tank, the steam generator, and the washing device are sequentially connected to form a first water supply circuit, and the water softener, the reversing structure, and the washing device are connected to form a second water supply circuit. The reversing structure is used to switch between the first water supply circuit and the second water supply circuit.

[0012] In one embodiment, the reversing structure is a reversing valve, and the dishwasher further includes:

[0013] The first connecting pipe has one end connected to the reversing valve and the other end connected to the first receiving cavity; and

[0014] The second connecting pipe is connected at one end to the reversing valve and at the other end to the washing chamber;

[0015] The inner diameter of the first connecting pipe is larger than the inner diameter of the second connecting pipe.

[0016] In one embodiment, the reversing structure includes a first valve body and a second valve body.

[0017] The dishwasher also includes:

[0018] The first connecting pipe has one end connected to the water softener and the other end connected to the first receiving cavity; and

[0019] The second connecting pipe is connected at one end to the water softener and at the other end to the washing chamber.

[0020] The first valve body is located in the first connecting pipe, and the second valve body is located in the second connecting pipe. The inner diameter of the first connecting pipe is larger than the inner diameter of the second connecting pipe.

[0021] In one embodiment, the volume of the first receiving cavity is greater than the volume of the second receiving cavity.

[0022] In one embodiment, the water tank further has a water outlet communicating with the second receiving cavity, and the water outlet is connected to the steam generator;

[0023] The washing device includes an inner tank and a water cup connected below the inner tank. The water softener is connected to the water cup and the water tank respectively. The inner tank is provided with a steam inlet connecting the washing chamber and the steam generator. In the height direction of the dishwasher, both the water outlet and the steam inlet are higher than the steam generator.

[0024] In one embodiment, it further includes:

[0025] A steam nozzle is located at the steam inlet and installed on the side wall of the inner tank; the steam nozzle connects the steam generator and the washing chamber.

[0026] The second receiving cavity is provided with a preset water level, and the steam nozzle is higher than the preset water level in the height direction of the dishwasher.

[0027] In one embodiment, the water tank is further provided with a vent that communicates with the second receiving cavity, and the vent communicates with the washing cavity;

[0028] In the height direction of the dishwasher, the vent is higher than the preset water level.

[0029] In one embodiment, the water tank includes:

[0030] Box; and

[0031] A partition is provided inside the box and divides the space inside the box into a first receiving cavity and a second receiving cavity. The partition is provided with an overflow port or the partition and the inner wall of the box define the overflow port.

[0032] In one embodiment, it further includes:

[0033] The inlet valve connects to the water inlet of the water softener; and

[0034] The controller is configured to, when the water softener produces reclaimed water, control the reversing structure to connect the second water supply circuit and disconnect the first water supply circuit.

[0035] In one embodiment, the water softener has a regeneration chamber and a resin chamber that are connected to each other, the resin chamber being connected to the first receiving chamber and the washing chamber, and the water softener further includes:

[0036] A switching valve connects to the inlet valve and, under the control of the controller, switches between connecting the regeneration chamber and the resin chamber. When the switching valve connects to the regeneration chamber, the resin chamber discharges regenerated water.

[0037] Based on the above embodiments, this embodiment, by setting a reversing valve, controls the selective connection between the water softener, the washing device, and the water tank. This not only allows for separate water supply through the first and second water supply lines, isolating the water in the washing device and the water tank from each other and preventing contamination of the water in the washing device from affecting the water in the tank, but also allows for switching the connection to the second water supply branch when contamination occurs in the water softener's supply. This prevents contaminated water from flowing into the steam generator through the second receiving chamber, thereby avoiding impact on the steam generator, further reducing the possibility of steam generator blockage, extending the service life of the steam generator, and improving the reliability of the dishwasher. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of a dishwasher according to an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of another embodiment of the dishwasher of this application.

[0041] Explanation of icon numbers:

[0042] 100. Dishwasher; 10. Inlet valve; 20. Water tank; 22. Outlet; 23. Vent; 24. Cabinet; 25. Divider; 26. First receiving cavity; 27. Second receiving cavity; 28. Overflow port; 30. Steam generator; 31. Check valve; 32. Steam nozzle; 40. Washing device; 41. Washing chamber; 43. Steam inlet; 44. Spray assembly; 50. Water cup; 51. Water collection chamber; 60. Water softener; 61. Switching valve; 62. Resin chamber; 63. Regeneration chamber; 70. Detergent box; 71. Cleaning valve; 80. First connecting pipe; 81. Second connecting pipe; 90. Reversing structure.

[0043] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0045] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0046] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] Nowadays, with the upgrading of consumption, users expect a higher quality and healthier life, making dishwashers increasingly popular as a luxury kitchen appliance. A dishwasher is an intelligent product that replaces manual dishwashing. During operation, the dishwasher continuously sprays water onto the dishes to achieve cleaning. As the dishwasher industry develops, consumers not only have higher requirements for cleanliness but also for sterilization. Some dishwashers have a steam wash function, which uses high-temperature steam to break down grease and grime on dishes, resulting in better cleaning while also sterilizing.

[0049] In related technologies, dishwashers are not very efficient, and when there are problems with the water supply to the steam generator, they are prone to contaminating the steam generator's water circuit, causing blockages and shortening the lifespan of the steam generator, resulting in poor system stability.

[0050] To address the above problems, this application proposes a dishwasher 100. In conjunction with... Figures 1 to 2 The dishwasher 100 proposed in this application includes a housing 24 (not shown in the figure), a washing device 40, a water tank 20, a steam generator 30, a water inlet valve 10, a water softener 60, a reversing structure 90, and a controller (not shown in the figure). The washing device 40, water tank 20, steam generator 30, water inlet valve 10, water softener 60, reversing structure 90, and controller are all disposed within the housing 24.

[0051] The housing 24 forms the outer shell of the dishwasher 100, providing a mounting base and protection for components such as the washing unit 40, water tank 20, steam generator 30, water inlet valve 10, water softener 60, and controller. The surface of the housing 24 also constitutes the main exterior surface of the dishwasher 100. Optionally, a closable door is provided on one side of the housing 24, allowing the user to load and unload tableware.

[0052] One end of the inlet valve 10 is connected to a water source, and the other end is connected to the water softener 60. The controller is also used to control the inlet valve 10. When the inlet valve 10 is open, the water source supplies water to the water softener 60; when the inlet valve 10 is closed, the water source stops supplying water to the water softener 60. The water source can be a tap water pipe, municipal pipeline, or water storage equipment, etc., which will not be described in detail here.

[0053] The outlet of the water softener 60 is connected to both the water tank 20 and the washing device 40 to supply water to them. The water softener 60 can be used to remove calcium and magnesium ions from the water, thereby reducing the amount of calcium and magnesium ions in the water.

[0054] The water tank 20 can be connected to one side of the washing device 40 and is used to connect to an external water source to store water. The material and shape of the water tank 20 are not limited here. It has a first receiving cavity 26, a second receiving cavity 27 and an overflow port 28 inside. The first receiving cavity 26 and the second receiving cavity 27 are connected through the overflow port 28. The first receiving cavity 26 is connected to the water softener 60 and the second receiving cavity 27 is connected to the steam generator 30.

[0055] Steam generator 30 is connected to second receiving cavity 27 and is used to supply steam to washing cavity 41. Second receiving cavity 27 supplies water to steam generator 30, steam generator 30 heats water to generate steam, steam enters washing cavity 41 through steam inlet 43 to sterilize and disinfect tableware and other items in washing cavity 41. Exemplarily, steam generator 30 includes heating cavity and heating elements such as thick film heating plate, PTC, and heating tube disposed in heating cavity. Water inlet end of heating cavity is connected to water outlet 22, water outlet end of heating cavity is connected to steam inlet 43 so that steam generated by heating can enter washing cavity 41.

[0056] Optionally, the washing device 40 includes an inner tank and a spray assembly 44. The inner tank is located inside the housing 24 and defines a washing chamber 41 for placing tableware. A bracket may be provided in the washing chamber 41 to hold tableware and other items. The spray assembly 44 may be distributed in the washing chamber 41 in the form of nozzles or spray arms. The spray assembly 44 is provided with spray nozzles, through which jets are sprayed onto the tableware and other items to rinse them. The washing device 40 is also provided with a steam inlet 43 communicating with the washing chamber 41. A steam generator 30 is connected to the steam inlet 43 to supply steam into the washing chamber 41, thereby sterilizing and disinfecting the tableware and other items.

[0057] The washing device 40 also includes a water cup 50. The water cup 50 can be a semi-enclosed structure arranged in the shape of a trough or a cup. The water cup 50 is located below the inner tank and defines a water collection chamber 51 that communicates with the washing chamber 41. Water in the washing chamber 41 can flow from the washing chamber 41 to the water collection chamber 51 under the action of gravity. The water collection chamber 51 communicates with the spray nozzle to supply water to the spray assembly 44.

[0058] The reversing structure 90 connects to the outlet end of the water softener 60, and selectively connects the first receiving chamber 26 and the water collecting chamber 51. The reversing structure 90 can be a reversing valve or a combination of multiple valve bodies. The controller is also used to control the reversing structure 90 to connect to either the first receiving chamber 26 or the water collecting chamber 51, so that the water softener 60 supplies water to either the first receiving chamber 26 or the water collecting chamber 51. That is,

[0059] Based on the above, the dishwasher 100 has a first water supply path: water inlet valve 10 - water softener 60 (resin chamber 62) - reversing structure 90 - first receiving chamber 26 - second receiving chamber 27 - steam generator 30 - washing device 40 (washing chamber 41); and also has a second water supply path: water inlet valve 10 - water softener 60 (resin chamber 62) - reversing structure 90 - washing device 40 (water collection chamber 51).

[0060] Thus, by setting the reversing structure 90, this embodiment selectively controls the water softener 60 to be connected to the washing device 40 and the water tank 20. This not only allows for separate water supply through the first and second water supply lines, preventing the connection between the water in the washing device 40 and the water tank 20, thus avoiding the water in the washing device 40 being contaminated and affecting the water in the water tank 20, but also allows for switching the connection to the second water supply branch when the water supply to the water softener 60 becomes contaminated. This prevents contaminated water from flowing into the steam generator through the second receiving cavity 27, thereby avoiding affecting the steam generator 30, further reducing the possibility of the steam generator 30 becoming clogged, extending the service life of the steam generator 30, and improving the reliability of the dishwasher 100.

[0061] Furthermore, in this embodiment, the water tank 20 is divided into a first receiving cavity 26 and a second receiving cavity 27, which are connected by an overflow port 28. The first receiving cavity 26 replenishes water to the second receiving cavity 27 by overflow. This ensures that even if the water in the first receiving cavity 26 is contaminated, it will not affect the water in the second receiving cavity 27 without continuous replenishment, thus avoiding impact on the steam generator 30 and reducing the risk of blockage. It also prevents backflow of water from the second receiving cavity 27, allowing it to retain moisture and thus facilitating water supply to the steam generator 30, preventing dry burning of the steam generator 30.

[0062] Combination Figure 1 In one embodiment, the reversing structure 90 is a reversing valve. The dishwasher 100 also includes a first connecting pipe 80 and a second connecting pipe 81. One end of the first connecting pipe 80 is connected to the reversing structure 90, and the other end is connected to the first receiving cavity 26. One end of the second connecting pipe 81 is connected to the reversing structure 90, and the other end is connected to the water collecting cavity 51. In this embodiment, the inner diameter of the first connecting pipe 80 is larger than the inner diameter of the second connecting pipe 81. When the water flow rate supplied by the water softener 60 is constant, the larger the inner diameter of the pipe, the more water flows through per unit time. Thus, this embodiment further accelerates the efficiency of water supply to the water tank 20 by making the inner diameter of the first connecting pipe 80 larger than the inner diameter of the second connecting pipe 81, which facilitates the generation of steam by the steam generator 30.

[0063] In another embodiment, the first connecting pipe 80 and the second connecting pipe 81 can also be directly connected to the water softener 60. The reversing structure 90 includes a first valve body and a second valve body. The first valve body is disposed in the first connecting pipe 80, and the second valve body is disposed in the second connecting pipe 81. The reversing function is achieved through the cooperation of the first valve body and the second valve body. For example, when the first valve body is open and the second valve body is closed, the first water supply path is connected; when the first valve body is closed and the second valve body is open, the second water supply path is connected.

[0064] In one embodiment, the volume of the first receiving cavity 26 is larger than the volume of the second receiving cavity 27. The steam generator 30 uses a relatively small amount of water per steam generation, while the water softener 60 supplies a larger amount of water per generation. For example, the steam generator 30 requires 100ml of water per steam generation, while the water softener 60 can supply up to 500ml of water per generation. Setting the volume of the first receiving cavity 26 to be larger than the volume of the second receiving cavity 27 allows for better storage of the water required by the steam generator 30, and also provides sufficient buffer time in case of water supply problems from the water softener 60, thus making the layout more rational.

[0065] Optionally, the cabinet has a base for supporting the washing device 40. In this embodiment, the water tank 20 is connected to the side wall of the inner tank, and the steam generator 30 is mounted on the base. Therefore, in the height direction of the dishwasher 100, the water tank 20 is positioned higher than the steam generator 30, facilitating the flow of water from the water tank 20 to the steam generator 30 and easily forming a communicating vessel structure.

[0066] Combination Figure 1 In one embodiment, the dishwasher 100 further includes a one-way valve 31. The one-way valve 31 is disposed between the water tank 20 and the steam generator 30, and is used to allow fluid to flow unidirectionally from the water outlet 22 to the steam generator 30. This helps to maintain the flow of fluid along the water path 2, prevents backflow of steam when the steam generator 30 is working and generating steam, allows steam to enter the washing chamber 41, and helps to ensure that the water in the second receiving chamber 27 flows to the steam generator 30, thus ensuring the water replenishment effect of the water tank 20 to the steam generator 30.

[0067] The water tank 20 also has a water outlet 22 communicating with the second receiving cavity 27, and the water outlet 22 is connected to the steam generator 30. In the height direction of the dishwasher 100, both the water outlet 22 and the steam inlet 43 are higher than the steam generator 30, forming a communicating vessel structure. Based on this communicating vessel structure, when the water level in the second receiving cavity 27 is higher than the water outlet 22, because the steam generator 30 is lower, water in the water tank 20 can flow out through the water outlet 22 to the steam generator 30 under the influence of gravity and atmospheric pressure. Thus, water can flow to the steam generator 30 without the need for a water pump. Thus, compared with related technologies that use a water pump to supply water to the steam generator 30, the technical solution of this application embodiment does not require a water pump, reducing the number of parts, lowering costs, and reducing the overall risk of part failure. Furthermore, when there is water in the second receiving cavity 27, the communicating vessel structure ensures that water flows through the steam generator 30 during operation, preventing dry burning. This avoids damage to the steam generator 30 or a shortened service life due to the water pump not working, extending the service life of the steam generator 30 and improving the overall reliability of the dishwasher 100.

[0068] In some embodiments, the water outlet 22 is connected to the bottom of the second receiving cavity 27. Specifically, the water outlet 22 can be formed on the bottom wall of the housing 24, and the pipe connecting the water outlet 22 and the steam generator 30 is connected to the bottom of the housing 24. This application embodiment does not limit the shape of the water outlet 22; it can be a square or circular hole. The water outlet 22 located at the bottom of the second receiving cavity 27 facilitates the drainage of water from the second receiving cavity 27 and can empty the second receiving cavity 27 as much as possible, promoting water circulation and preventing some water from remaining in the second receiving cavity 27 and affecting water quality. Of course, the water outlet 22 can also be connected to the second receiving cavity 27 from the side wall of the housing 24; this application embodiment does not limit this, provided that water can be present above the water outlet 22.

[0069] To facilitate communication between the water tank 20 and the atmosphere, the water tank 20 is also provided with a vent 23, which connects to the washing chamber 41. Optionally, the water tank 20 can be located on one side of the washing device 40, and the vent 23 can be formed on the side wall of the water tank 20, spaced apart from the water outlet 22 in the height direction of the dishwasher 100. When there is too much water in the water tank 20, the vent 23 can also be used to overflow the fluid in the second receiving chamber 27 that is higher than the vent 23 into the washing chamber 41, thus keeping the water level in the water tank 20 below the vent 23 and preventing structural damage to the water tank 20 due to excessive water.

[0070] Furthermore, in the height direction of the dishwasher 100, the steam inlet 43 is higher than the vent 23. It is understandable that when the steam generator 30 is not operating, during the process of replenishing water to the washing chamber 41 through the steam generator 30, water needs to be added to the water tank 20 until the water level is higher than the vent 23. At this time, the fluid in the second receiving chamber 27 above the vent 23, in addition to overflowing into the washing chamber 41 through the vent 23, can also flow into the washing chamber 41 through the steam inlet 43 based on the principle of communicating vessels. In conjunction with the above, when the vent 23 keeps the water level in the second receiving chamber 27 below the vent 23, the water in the connecting pipe between the steam generator 30 and the steam inlet 43 also maintains the same water level, preventing leakage. When the steam generator 30 is operating, steam flows into the washing chamber 41 from the steam inlet 43. Even if water overflows into the washing chamber 41 through the vent 23 at this time, because the steam inlet 43 is higher than the vent 23, the flow of steam will not be disturbed, ensuring that the steam can be smoothly discharged into the washing chamber 41.

[0071] In one embodiment, the dishwasher 100 further includes a steam nozzle 32, which is disposed at a steam inlet 43 and connected to the side wall of the inner tub. Understandably, the steam nozzle 32 has an inlet end and an outlet end; the inlet end connects to a steam generator 30, and the outlet end connects to a washing chamber 41. When the steam generator 30 is generating steam, steam can flow into the washing chamber 41 through the steam nozzle 32. Optionally, the outlet end of the steam nozzle 32 faces into the washing chamber 41 and has multiple steam outlets facing different directions, so that the steam emitted by the steam nozzle 32 can be more evenly distributed within the washing chamber 41, ensuring the sterilization and disinfection effect.

[0072] In this embodiment, the second receiving cavity 27 has a preset water level. In the height direction of the dishwasher 100, the vent 23 is higher than the preset water level to keep the second receiving cavity in communication with the atmosphere and maintain the communicating vessel structure. The steam nozzle 32 is also higher than the preset water level. Based on the communicating vessel structure, water above the preset water level can also flow into the washing cavity 41 through the steam nozzle 32.

[0073] Please continue to combine Figure 1 and Figure 2 In one embodiment, the water tank 20 includes a tank body 24 and a partition 25. The partition 25 is disposed within the tank body 24 and divides the space within the tank body 24 into a first receiving cavity 26 and a second receiving cavity 27. Optionally, the partition 25 may be plate-shaped to reduce the space occupied within the tank body 24 while separating the space. Optionally, the partition 25 may have an overflow port 28 itself, or the partition 25 and the inner wall of the tank body 24 may define the overflow port 28. Of course, the water tank 20 may also adopt a nested structure in which part of the first receiving cavity 26 is located within the second receiving cavity 27; this application does not limit this arrangement.

[0074] The following explanation continues with the embodiment where the water tank 20 is equipped with a partition 25:

[0075] Optionally, along the height direction of the dishwasher 100, the overflow port 28 is located in the upper part of the water tank 20. For example, the top of the partition 25 is spaced apart from the inner top wall of the water tank 20 to define the overflow port 28 between them. Understandably, compared to the overflow port 28 located in the middle or lower part of the water tank 20, the highest water level defined by the overflow port 28 located in the upper part of the water tank 20 is also higher, the first receiving cavity 26 can hold and buffer more water, and the first receiving cavity 26 and the second receiving cavity 27 can also hold more softened water, thereby improving the utilization rate of the space inside the water tank 20.

[0076] Furthermore, combined Figure 1 In one embodiment, at least the upper half of the partition 25 is inclined. This can be achieved by the upper half of the partition 25 being inclined and the lower half extending along the height direction of the dishwasher 100, or by the partition 25 being inclined entirely. Optionally, the inclined portion of the partition 25 causes the cross-sectional area of ​​the first receiving cavity 26 to gradually increase along the direction near the top of the water tank 20, thus increasing the volume of the first receiving cavity 26, providing more buffering, and effectively preventing contaminated water from entering the second receiving cavity 27. Furthermore, the inclined partition 25 can also guide the backflow of water in the first receiving cavity 26 and make it more difficult for water to flow back into the second receiving cavity 27, thereby ensuring that the second receiving cavity 27 can retain water.

[0077] Of course, in some other embodiments, the arrangement of the partition 25 is not limited to an inclined arrangement. When it is necessary to increase the cross-sectional area of ​​the first receiving cavity 26, the partition 25 can also be arranged in a stepped bend, which will not be elaborated here.

[0078] like Figure 1 As shown, the water softener 60 has a resin chamber 62, a regeneration chamber 63, and a switching valve 61. The resin chamber 62 and the regeneration chamber 63 are connected, and both are also connected to the switching valve 61, which can be controlled by a controller. The switching valve 61 determines whether water passes through the regeneration chamber 63. When water enters the resin chamber 62 directly without passing through the regeneration chamber 63, the ion exchange resin in the resin chamber 62 removes calcium and magnesium ions from the water, reducing water hardness and forming softened water. When water passes through the regeneration chamber 63 before entering the resin chamber 62, on the one hand, the water is softened in the resin chamber 62; on the other hand, the water passing through the regeneration chamber 63 regenerates the resin in the resin chamber 62, forming regenerated water.

[0079] When the resin chamber 62 of the water softener 60 needs to be regenerated, the water flowing out of the inlet valve 10 is controlled by the switching valve 61 and enters the resin chamber 62 through the regeneration chamber 63 to form regenerated water. The regenerated water contains calcium and magnesium ions. If the regenerated water is introduced into the second receiving chamber 27 and then supplied to the steam generator 30 through the water circuit 2, it is easy to cause scale buildup and blockage in the steam generator 30, affecting the service life of the steam generator 30.

[0080] In this embodiment, the controller controls the reversing structure 90 and is configured to, when the water softener 60 produces regenerated water, control the reversing structure 90 to enable the dishwasher 100 to connect the second water supply path, so as to directly introduce the regenerated water produced by the water softener 60 into the water cup 50, thereby preventing regenerated water from entering the second receiving cavity 27, reducing or avoiding the blockage of the steam generator 30, extending the service life of the steam generator 30, and improving the reliability and stability of the dishwasher 100.

[0081] The controller can determine whether the water softener 60 should replenish the first receiving chamber 26 with regenerated water by knowing the state of the switching valve 61. That is, when the switching valve 61 opens the inlet valve 10 and the regeneration chamber 63, it is determined that regenerated water should be replenished. Alternatively, the dishwasher 100 can also install a sensor for detecting ion concentration between the water softener 60 and the first receiving chamber 26. When the ion concentration between the water softener 60 and the first receiving chamber 26 is found to be too high, it is determined that regenerated water should be replenished.

[0082] In this embodiment, the water cup 50 is further provided with a drain outlet communicating with the water collection chamber 51. The dishwasher 100 also includes a drain pump connected to the water cup 50 and selectively communicating with the drain outlet. The controller is also used to control the communication between the drain pump and the drain outlet. During drainage, the controller controls the drain pump to operate, so that the drain pump communicates with the drain outlet, thereby draining the water in the water collection chamber 51. When the dishwasher 100 is draining reclaimed water, the reclaimed water collected in the water collection chamber 51 can be discharged in a timely manner, reducing pollution and preventing waterway blockage.

[0083] If the steam generator 30 becomes clogged or contaminated, a cleaning operation is required. For example... Figure 2As shown, in some embodiments, the dishwasher 100 also includes a detergent dispenser 70. The detergent dispenser 70 is connected to the washing unit 40 and has a storage cavity for storing detergent, which selectively communicates with a second receiving cavity 27. A controller is also used to control the communication between the storage cavity and the second receiving cavity 27 and is configured to connect the storage cavity to the second receiving cavity 27 when cleaning the steam generator 30 is required. For example, the detergent dispenser 70 is located at the top of the washing unit 40, with a cleaning valve 71 controllable by the controller between them. During cleaning, the controller controls the cleaning valve 71 to connect the storage cavity and the second receiving cavity 27, allowing detergent to flow into the second receiving cavity 27 under gravity. Of course, in some other configurations, the detergent dispenser 70 may also be located in other parts of the dishwasher 100, and the detergent may be pumped to the second receiving cavity 27.

[0084] Thus, by adding detergent into the second receiving cavity 27, the detergent flows along the path from the second receiving cavity 27 to the steam generator 30 to the washing cavity 41, cleaning the steam generator 30 and the pipes along the way, effectively maintaining the cleanliness and hygiene of the pipes, helping to solve the problem of blockage, and improving the reliability of the dishwasher 100. By setting up the detergent dispenser 70, after filling the storage cavity once, cleaning operations can be performed multiple times over a long period of time, reducing the need for users to frequently add detergent to the storage cavity; moreover, this embodiment of the application automatically adds detergent into the second receiving cavity 27 through a controller, reducing the user's labor intensity while improving the intelligence level of the dishwasher 100 and enhancing the user experience.

[0085] Furthermore, the dishwasher 100 also includes a detection device disposed in the detergent dispenser 70 for detecting the remaining amount of detergent in the storage chamber, so that the user can know the current amount of detergent and replenish it in time. Optionally, the detection device includes at least one of a Hall effect sensor, a float sensor, and an electrode sensor. For example, when the detection device is an electrode sensor, it is a device that uses the conductivity of liquid to detect the liquid level. The electrode sensor includes probes, and multiple probes are set in the detergent dispenser 70 at different liquid level heights. When the detergent surface touches the probes, the probes emit detection signals. Different detection signals correspond to different liquid level heights, thereby determining the current detergent level.

[0086] Of course, in addition to program control, users can also manually add cleaning agent to the water tank 20, which is convenient and quick. This application embodiment does not limit this.

[0087] Furthermore, the dishwasher 100 also includes a filter device disposed in the water collection chamber 51. The filter device is used to filter the fluid flowing into the water collection chamber 51 from the washing chamber 41. During the operation of the dishwasher 100, the filtered fluid can reduce or prevent scale and other impurities from circulating with the water flow, thereby reducing pollution and facilitating cleaning.

[0088] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0089] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dishwasher, characterized in that The dishwasher comprises: a water softener; a water tank having a first accommodating cavity, a second accommodating cavity and an overflow port, the first accommodating cavity and the second accommodating cavity being communicated through the overflow port, the first accommodating cavity being used for communicating the water softener; a washing device having a washing cavity; a steam generator having one end communicated with the second accommodating cavity and the other end communicated with the washing cavity to provide steam; and a switching structure communicated with a water outlet end of the water softener. The water softener, the switching structure, the water tank, the steam generator and the washing device are sequentially communicated to form a first water supply path, the water softener, the switching structure and the washing device are communicated to form a second water supply path, and the switching structure is used for switching the first water supply path and the second water supply path. The switching structure is a switching valve, and the dishwasher further comprises:

2. The dishwasher according to claim 1, characterized in that a first communicating pipe having one end communicated with the switching valve and the other end communicated with the first accommodating cavity; and a second communicating pipe having one end communicated with the switching valve and the other end communicated with the washing cavity. The inner diameter of the first communicating pipe is greater than the inner diameter of the second communicating pipe. The switching structure comprises a first valve body and a second valve body, 3. The warewashing machine of claim 1, wherein, The dishwasher further comprises: a first communicating pipe having one end communicated with the water softener and the other end communicated with the first accommodating cavity; and a second communicating pipe having one end communicated with the water softener and the other end communicated with the washing cavity. The first valve body is arranged in the first communicating pipe, the second valve body is arranged in the second communicating pipe, and the inner diameter of the first communicating pipe is greater than the inner diameter of the second communicating pipe. The volume of the first accommodating cavity is greater than the volume of the second accommodating cavity.

4. The warewashing machine of claim 1, wherein, The water tank further has a water outlet hole communicated with the second accommodating cavity, and the water outlet hole is communicated with the steam generator.

5. The warewashing machine of claim 1, wherein, The washing device comprises an inner container and a water cup connected below the inner container, the water softener is respectively communicated with the water cup and the water tank, the inner container is provided with a steam inlet communicated with the washing cavity and the steam generator, and the water outlet hole and the steam inlet are both higher than the steam generator in the height direction of the dishwasher. The dishwasher further comprises:

6. The warewashing machine of claim 5, wherein, a steam nozzle located at the steam inlet and mounted on the side wall of the inner container, the steam nozzle being communicated with the steam generator and the washing cavity. The second accommodating cavity is provided with a preset water storage level, and the steam nozzle is higher than the preset water storage level in the height direction of the dishwasher. The water tank is further provided with an air permeable hole communicated with the second accommodating cavity, and the air permeable hole is communicated with the washing cavity.

7. The warewashing machine of claim 6, wherein, The air permeable hole is higher than the preset water storage level in the height direction of the dishwasher. The water tank comprises:

8. The warewash machine of claim 1, wherein, a tank body; and a partition arranged in the tank body and dividing the space in the tank body into the first accommodating cavity and the second accommodating cavity, the partition being provided with the overflow port or the partition and the inner wall of the tank body defining the overflow port. The dishwasher further comprises:

9. The warewash machine of any of claims 1-8, wherein, a water inlet valve communicated with the water inlet end of the water softener; and a controller configured to control the switching structure to communicate the second water supply path and cut off the first water supply path when the water softener generates regenerated water. ​ ​ 10. The warewash machine of claim 9, wherein, The softener has a regeneration cavity and a resin cavity in communication, the resin cavity is in communication with the first containing cavity and the washing cavity, and the softener further comprises: A switching valve in communication with the water inlet valve and switching the communication between the regeneration cavity and the resin cavity under the control of the controller, when the switching valve is in communication with the regeneration cavity, the resin cavity discharges regeneration water.

Images