Dishwasher

Abstract

A dishwasher. The dishwasher comprises a water intake valve, a water softener, a water tank, a washing device, a steam generator, and a controller. The water softener is in communication with the water intake valve. The water tank has a first accommodating cavity, a second accommodating cavity and an overflow port, wherein the first accommodating cavity and the second accommodating cavity are in communication with each other by means of the overflow port, and the first accommodating cavity is in communication with the water softener. The washing device has a washing cavity. The steam generator is in communication with the second accommodating cavity and is in communication with the washing cavity. The water tank and the washing device are both in communication with a water output end of the water softener, such that water can be supplied to both the water tank and the washing device by the water softener. The dishwasher can achieve an improvement in the efficiency of the dishwasher while prolonging the service life of the steam generator and improving the stability of the dishwasher.

Description

dishwasher

[0001] Related applications

[0002] This application claims priority to the following Chinese patent applications filed on December 27, 2024, entitled "Dishwasher": 2024119660420, 2024232725564, 2024232730628, and 2024232728280, all of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of washing equipment technology, and in particular to a dishwasher. Background Technology

[0004] 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.

[0005] 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. Summary of the Invention

[0006] This application provides a dishwasher that can improve dishwasher efficiency, extend the service life of the steam generator, and enhance dishwasher stability.

[0007] The dishwasher proposed in this application includes:

[0008] Water softener;

[0009] 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, and the first receiving cavity is connected to the water softener.

[0010] Washing device, having a washing chamber;

[0011] A steam generator, one end of which is connected to the second receiving chamber and the other end of which is connected to the washing chamber to provide steam;

[0012] The water tank and the washing device are both connected to the outlet of the water softener. The water softener, the water tank, the steam generator and the washing device are sequentially connected to form a first water supply circuit. The water softener and the washing device are connected to form a second water supply circuit.

[0013] In some embodiments, the washing device includes a water cup having a water collection chamber.

[0014] The three-way assembly has a first water inlet, a second water inlet, and a third water inlet. The first water inlet is connected to the water softener, and the second and third water inlets are respectively connected to the first receiving cavity and the water cup.

[0015] In some embodiments, it includes: a first connecting pipe, one end of which is connected to the second water inlet, and the other end of which is connected to the first receiving cavity; and

[0016] The second connecting pipe is connected at one end to the third water inlet and at the other end to the water collection chamber;

[0017] The inner diameter of the first connecting pipe is larger than the inner diameter of the second connecting pipe.

[0018] In some embodiments, the volume of the first receiving cavity is greater than the volume of the second receiving cavity.

[0019] In some embodiments, including:

[0020] The base is configured to support the washing device, which includes an inner tank and a water cup connected below the inner tank. The water softener is connected to both the water cup and the water tank. The water tank is connected to the side wall of the inner tank. The steam generator is located on the base.

[0021] In some embodiments, the water tank has a water outlet communicating with the second receiving cavity, and the water outlet communicating with the steam generator;

[0022] The inner tank is provided with a steam inlet that connects 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.

[0023] In some embodiments, including:

[0024] A steam nozzle is installed on the side wall of the inner tank, located at the steam inlet, and the steam nozzle connects the steam generator and the washing chamber;

[0025] 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.

[0026] In some embodiments, the water tank is provided with a vent that communicates with the second receiving cavity, and the vent communicates with the washing cavity;

[0027] In the height direction of the dishwasher, the vent is higher than the preset water level.

[0028] In some embodiments, the water tank includes:

[0029] Box; and

[0030] 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.

[0031] In some embodiments, at least the upper half of the separator is inclined.

[0032] In some embodiments, including:

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

[0034] The controller is configured to close the inlet valve when the regenerated water produced by the water softener reaches the highest water level or maximum volume in the first receiving chamber below the overflow port.

[0035] In some embodiments, the water softener has a regeneration chamber and a resin chamber connected in communication, the resin chamber connecting the first receiving chamber and the washing chamber, and the water softener 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] In some embodiments, when the water softener produces regenerated water, the inlet valve, the regeneration chamber, the resin chamber, the first receiving chamber, and the water cup are sequentially connected to form a first regenerated water flow path, and the inlet valve, the regeneration chamber, the resin chamber, and the water cup are connected to form a second regenerated water flow path.

[0038] In some embodiments, the dishwasher includes:

[0039] A reversing structure connects to the outlet end of the water softener;

[0040] The water softener, the reversing structure, the water tank, the steam generator, and the washing device are sequentially connected to form the first water supply circuit, and the water softener, the reversing structure, and the washing device are connected to form the second water supply circuit. The reversing structure is configured to switch between the first water supply circuit and the second water supply circuit.

[0041] In some embodiments, the reversing structure is a reversing valve, and the dishwasher includes:

[0042] The first connecting pipe has one end connected to the reversing valve and the other end connected to the first receiving cavity; and

[0043] The second connecting pipe is connected at one end to the reversing valve and at the other end to the washing chamber;

[0044] The inner diameter of the first connecting pipe is larger than the inner diameter of the second connecting pipe.

[0045] In some embodiments, the reversing structure includes a first valve body and a second valve body.

[0046] The dishwasher includes:

[0047] The first connecting pipe has one end connected to the water softener and the other end connected to the first receiving cavity; and

[0048] The second connecting pipe is connected at one end to the water softener and at the other end to the washing chamber.

[0049] 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.

[0050] In some embodiments, including:

[0051] The inlet valve connects to the water inlet of the water softener; and

[0052] 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.

[0053] In some embodiments, the water tank has a water outlet communicating with the second receiving cavity, and the steam generator is communicating with the water outlet;

[0054] The washing chamber has a steam inlet, which is connected to the steam generator;

[0055] In the height direction of the dishwasher, both the water outlet and the steam inlet are higher than the steam generator, so that they together form a communicating vessel structure.

[0056] In some embodiments, including:

[0057] A one-way valve is disposed between the water tank and the steam generator, configured to allow fluid to flow unidirectionally from the water outlet to the steam generator.

[0058] In some embodiments, the water outlet is connected to the second receiving cavity at the bottom of the second receiving cavity, and the steam inlet is positioned higher than the water outlet in the height direction of the dishwasher.

[0059] In some embodiments, the water tank is provided with a vent hole that communicates with the washing chamber and is spaced apart from the water outlet hole in the height direction of the dishwasher.

[0060] In some embodiments, the steam inlet is higher than the vent hole in the height direction of the dishwasher.

[0061] In some embodiments, the washing device includes a water cup having a water collection chamber, and the dishwasher includes:

[0062] Inlet valve; and

[0063] The three-way assembly has a first water inlet, a second water inlet, and a third water inlet. The first water inlet is connected to the water inlet valve, and the second and third water inlets are respectively connected to the water tank and the water cup.

[0064] In some embodiments, including:

[0065] A detergent dispenser is provided in the washing device and configured to hold detergent; the detergent dispenser is connected to the water tank.

[0066] A cleaning valve, disposed between the detergent dispenser and the water tank, is configured to control the opening and closing of the detergent dispenser and the receiving cavity; and

[0067] A controller configured to open the cleaning valve when the steam generator needs to be cleaned.

[0068] Based on the above embodiments, the water softener can supply water to the washing device through the water tank and steam generator, and can also supply water directly to the washing device. The two water supply lines form a parallel water circuit. The simultaneous supply of water from both lines can accelerate the water intake rate of the washing device, improve working efficiency, and when one water intake line cannot be connected, water can still be supplied through the other line, ensuring the normal operation of the dishwasher and improving the reliability of the dishwasher.

[0069] Furthermore, in this embodiment, the water tank is divided into a first receiving chamber and a second receiving chamber, which are connected by an overflow port. The first receiving chamber replenishes water to the second receiving chamber through overflow. Therefore, if contamination is detected in the water replenished into the first receiving chamber, stopping the replenishment of water to the first receiving chamber can prevent contaminated water from entering the second receiving chamber, reducing or preventing steam generator blockage, extending the service life of the steam generator, and further improving the reliability and stability of the dishwasher. Attached Figure Description

[0070] 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.

[0071] Figure 1 is a structural schematic diagram of the first embodiment of the dishwasher of this application;

[0072] Figure 2 is a structural schematic diagram of the second embodiment of the dishwasher of this application;

[0073] Figure 3 is a structural schematic diagram of the third embodiment of the dishwasher of this application;

[0074] Figure 4 is a structural schematic diagram of the fourth embodiment of the dishwasher of this application;

[0075] Figure 5 is a structural schematic diagram of the fifth embodiment of the dishwasher of this application;

[0076] Figure 6 is a structural schematic diagram of the sixth embodiment of the dishwasher of this application.

[0077] Reference numerals: 100, Dishwasher; 10, Water inlet valve; 20, Water tank; 22, Water outlet; 23, Vent; 24, Cabinet body; 25, Divider; 26, First receiving chamber; 27, Second receiving chamber; 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 container; 71, Cleaning valve; 80, First connecting pipe; 81, Second connecting pipe; 90, Reversing structure.

[0078] 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

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] To address the above problems, this application proposes a dishwasher 100. Referring to Figures 1 and 2, the dishwasher 100 of this application includes a housing 24 (not shown), a washing device 40, a water tank 20, a steam generator 30, a water inlet valve 10, a water softener 60, and a controller (not shown). The washing device 40, water tank 20, steam generator 30, water inlet valve 10, water softener 60, and controller are all housed within the housing 24.

[0085] 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. In some embodiments, a closable door is provided on one side of the housing 24, allowing the user to load and unload tableware.

[0086] 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 configured 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.

[0087] The outlet of the water softener 60 is connected to both the water tank 20 and the washing device 40 to supply water to both. The water softener 60 can be configured to remove calcium and magnesium ions from the water, thereby reducing the amount of calcium and magnesium ions in the water.

[0088] The water tank 20 can be connected to one side of the washing device 40 and configured 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.

[0089] The steam generator 30 is connected to the second receiving cavity 27 and configured to supply steam to the washing cavity 41. The second receiving cavity 27 supplies water to the steam generator 30, which heats the water to generate steam. The steam is then introduced into the washing cavity 41 through the steam inlet 43 to sterilize and disinfect tableware and other items inside the washing cavity 41. Exemplarily, the steam generator 30 includes a heating cavity and heating elements such as a thick-film heating plate, a PTC heater, and heating tubes disposed within the heating cavity. The water inlet of the heating cavity is connected to the water outlet 22, and the water outlet of the heating cavity is connected to the steam inlet 43, allowing the generated steam to enter the washing cavity 41.

[0090] In some embodiments, the washing device 40 includes an inner tank and a spray assembly 44. The inner tank is disposed inside the housing 24 and defines a washing chamber 41 configured 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 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.

[0091] The washing device 40 includes a water cup 50. The water cup 50 may 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.

[0092] Based on the above, the dishwasher 100 has a water path 1 for replenishing softened water to the second receiving chamber 27 in the water tank 20: water – inlet valve 10 – water softener 60 (resin chamber 62) – first receiving chamber 26 – second receiving chamber 27. Furthermore, there is a water path 2 for the steam generator 30: second receiving chamber 27 – steam generator 30 – washing chamber 41. Understandably, when the steam generator 30 is working, steam can be supplied to the washing chamber 41 through water path 2; when the steam generator 30 is not working, water can be supplied to the washing chamber 41 through water path 2. The water softener 60 is connected to the water collection chamber 51 to supply water to the water collection chamber 51, that is, the dishwasher 100 has a water path 3 for supplying softened water to the water collection chamber 51: water – inlet valve 10 – water softener 60 (resin chamber 62) – water cup 50.

[0093] Water path 1 and water path 2 together constitute the first water supply path for the water softener 60 to supply water to the washing chamber 41, and water path 3 is the second water supply path for the water softener 60 to supply water to the washing chamber 41. It is understood that the first and second water supply paths do not intersect, forming parallel water paths. Thus, the water softener 60 can supply water to the washing device 40 through the first water supply path via the water tank 20 and the steam generator 30, while also directly supplying water to the washing device 40 through the second water supply path. This dual water supply accelerates the water intake rate of the washing device 40, improving its working efficiency. Furthermore, if one water supply path is blocked, the other path can still supply water, ensuring the normal operation of the dishwasher 100 and improving its reliability.

[0094] 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 through 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 from the second receiving cavity 27, allowing it to retain moisture and thus facilitating water supply to the steam generator 30, preventing dry burning. Therefore, if contamination is detected in the water replenished to the first receiving cavity 26, stopping the replenishment of water to the first receiving cavity 26 prevents contaminated water from entering the second receiving cavity 27, reducing or preventing blockage of the steam generator 30, extending its service life, and further improving the reliability and stability of the dishwasher 100.

[0095] In some embodiments, the dishwasher 100 includes a three-way assembly, which may be a three-way pipe or a three-way connector, and has a first water inlet, a second water inlet, and a third water inlet. The first water inlet connects to the resin chamber 62 of the water softener 60 and serves as a water inlet. The second and third water inlets connect to the first receiving chamber 26 and the water collecting chamber 51, respectively, and serve as water outlets. It is understood that without the three-way assembly, the resin chamber 62 can be connected to the water cup 50 and the water tank 20 through two interfaces. This embodiment uses a three-way assembly, which facilitates pipe connection, reduces the structural complexity of the water softener 60, avoids secondary design, and reduces costs.

[0096] Referring to Figure 1, the dishwasher 100 includes a first connecting pipe 80 and a second connecting pipe 81. One end of the first connecting pipe 80 is connected to a tee assembly and a second water outlet, and the other end is connected to a first receiving cavity 26. One end of the second connecting pipe 81 is connected to a tee assembly and a third water outlet, and the other end is connected to a 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. In this embodiment, when the water softener 60 supplies water to the washing device 40, the amount of water flowing into the water tank 20 through the first connecting pipe 80 per unit time is greater than the amount of water flowing into the water cup 50 through the second connecting pipe 81 per unit time. When the water level in the first receiving cavity 26 is higher than the overflow port 28, for example, the water is stored in the second receiving cavity 27 for use by the steam generator 30. Thus, by making the inner diameter of the first connecting pipe 80 larger than the inner diameter of the second connecting pipe 81, this embodiment further accelerates the efficiency of water supply to the water tank 20, so as to preferentially fill the second receiving cavity 27, which facilitates the steam generator 30 to generate steam.

[0097] In some embodiments, 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 to generate steam per cycle, while the water softener 60 supplies a larger amount of water per cycle. For example, the steam generator 30 requires 100 ml of water to generate steam per cycle, while the water softener 60 can supply up to 500 ml of water per cycle. 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 efficient.

[0098] In some embodiments, the cabinet has a base configured to support 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. Thus, 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.

[0099] Referring to Figure 1, in some embodiments, the dishwasher 100 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 configured 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 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 from the water tank 20 to the steam generator 30.

[0100] The water tank 20 has a water outlet 22 that connects to the second receiving cavity 27 and is also 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, the 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, since the steam generator 30 is lower. 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.

[0101] In some embodiments, the water outlet 22 communicates with 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 communicate with 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.

[0102] To facilitate communication between the water tank 20 and the atmosphere, the water tank 20 is provided with a vent 23, which connects to the washing chamber 41. In some embodiments, the water tank 20 may be located on one side of the washing device 40, and the vent 23 may be formed on the side wall of the water tank 20, and 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 may also be configured to allow fluid in the second receiving chamber 27 that is higher than the vent 23 to overflow into the washing chamber 41, thereby 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 volume.

[0103] In some embodiments, the steam inlet 43 is higher than the vent 23 in the height direction of the dishwasher 100. It is understood 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 foregoing, 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, the steam flow will not be disturbed because the steam inlet 43 is higher than the vent 23, ensuring that the steam can be smoothly discharged into the washing chamber 41.

[0104] In some embodiments, the dishwasher 100 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. In some embodiments, the outlet end of the steam nozzle 32 faces into the washing chamber 41 and has multiple steam outlets oriented in 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.

[0105] 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.

[0106] Referring to Figure 1, in some embodiments, 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. In some embodiments, the partition 25 may be plate-shaped to reduce the space occupied within the tank body 24 while separating the space. In some embodiments, 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.

[0107] The following explanation continues with the embodiment where the water tank 20 is equipped with a partition 25:

[0108] In some embodiments, the overflow port 28 is located in the upper part of the water tank 20 along the height direction of the dishwasher 100. 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, the highest water level below the overflow port 28 defined by the overflow port 28 located in the upper part of the water tank 20 is also higher than that of the overflow port 28 located in the middle or lower part of the water tank 20. 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.

[0109] In some embodiments, referring to FIG. 1, 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. In some embodiments, the inclined portion of the partition 25 causes the cross-sectional area of ​​the first receiving cavity 26 in this portion to gradually increase along the direction near the top of the water tank 20. This increases 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.

[0110] 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.

[0111] As shown in Figure 1, 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, the water softens in the resin chamber 62, and the water passing through the regeneration chamber 63 regenerates the resin in the resin chamber 62, forming regenerated water.

[0112] 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.

[0113] The first receiving cavity 26 has a maximum volume or highest water level located below the overflow port 28. The maximum volume or highest water level below the overflow port 28 can be understood as follows: when the water capacity of the first receiving cavity 26 is greater than this maximum volume or when the water level of the first receiving cavity 26 is higher than this highest water level, the water gradually flows through the overflow port 28 into the second receiving cavity 27; conversely, the water in the first receiving cavity 26 does not overflow into the second receiving cavity 27.

[0114] In this embodiment, the controller controls the inlet valve 10 and is configured to close the inlet valve 10 and stop replenishing water to the first receiving chamber 26 when the regenerated water generated by the water softener 60 reaches the highest water level below the overflow port 28 in the first receiving chamber 26, thereby preventing the regenerated water from entering the second receiving chamber 27.

[0115] 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 configured to detect 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 too high, it is determined that regenerated water should be replenished.

[0116] The controller can determine the volume of reclaimed water in the first receiving chamber 26 by setting a flow meter. The controller stores the volume value of the highest water level portion of the first receiving chamber 26 below the overflow port 28. The flow meter is set between the inlet valve 10 and the first receiving chamber 26 and is configured to measure the water replenished to the first receiving chamber 26. By calculation, when the volume of reclaimed water replenished to the first receiving chamber 26 is equal to the volume of the highest water level portion below the overflow port 28, it is determined that the reclaimed water is at the maximum volume. Alternatively, the water tank 20 can also be equipped with a water level probe, and the controller can determine whether the reclaimed water is at the maximum water level by the signal from the water level probe. This embodiment of the application does not limit this.

[0117] Thus, when the water softener 60 outputs reclaimed water, the inlet valve 10 is controlled by the controller to close when the reclaimed water reaches the highest water level in the first receiving chamber 26 below the overflow port 28, stopping the replenishment of water to the first receiving chamber 26. This prevents reclaimed water from entering the second receiving chamber 27, reduces or avoids clogging of the steam generator 30, extends the service life of the steam generator 30, and improves the reliability and stability of the dishwasher 100.

[0118] In this embodiment, the water cup 50 is provided with a drain outlet communicating with the water collection chamber 51. The dishwasher 100 includes a drain pump connected to the water cup 50 and selectively communicating with the drain outlet. The controller is also configured 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 discharging the water in the water collection chamber 51. When the dishwasher 100 is discharging 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.

[0119] That is, the dishwasher 100 also has a water channel 4 and a water channel 5 for discharging reclaimed water, wherein:

[0120] Water circuit 4: Water — Inlet valve 10 — Softener 60 (regeneration chamber 63 — resin chamber 62) — First receiving chamber 26 — Water cup 50;

[0121] Water circuit 5: Water — Inlet valve 10 — Softener 60 (regeneration chamber 63 — resin chamber 62) — Water cup 50.

[0122] When the steam generator 30 becomes clogged or contaminated, a cleaning operation is required. As shown in Figure 2, in some embodiments, the dishwasher 100 includes a detergent dispenser 70. The detergent dispenser 70 is connected to the washing unit 40 and has a storage chamber configured to store detergent, which selectively communicates with a second receiving chamber 27. A controller is also configured to control the communication between the storage chamber and the second receiving chamber 27 and is configured to connect the storage chamber to the second receiving chamber 27 when cleaning of 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 chamber to the second receiving chamber 27, allowing detergent to flow into the second receiving chamber 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 chamber 27.

[0123] 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.

[0124] In some embodiments, the dishwasher 100 includes a detection device disposed in the detergent dispenser 70, configured to detect the remaining amount of detergent in the storage chamber, so that the user is aware of the current amount of detergent and can replenish the detergent in a timely manner. In some embodiments, 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 disposed in the detergent dispenser 70 at different liquid level heights. When the detergent surface touches a probe, the probe emits a detection signal. Different detection signals correspond to different liquid level heights, thereby determining the current detergent level.

[0125] 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.

[0126] In some embodiments, the dishwasher 100 includes a filter device disposed in the water collection chamber 51. The filter device is configured to filter the fluid flowing into the water collection chamber 51 from the washing chamber 41. During the operation of the dishwasher 100, filtering the fluid can reduce or prevent scale and other impurities from circulating with the water flow, thereby reducing contamination and facilitating cleaning.

[0127] 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.

[0128] To address the above problems, this application proposes a dishwasher 100. Referring to Figures 3 and 4, the dishwasher 100 of this application includes a cabinet (not shown), 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). The washing device 40, water tank 20, steam generator 30, water inlet valve 10, water softener 60, reversing structure 90, and controller are all housed within the cabinet.

[0129] The cabinet 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 cabinet also constitutes the main exterior appearance of the dishwasher 100. Optionally, a closable door is provided on one side of the cabinet, allowing users to load and unload tableware.

[0130] 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 configured 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.

[0131] The outlet of the water softener 60 is connected to both the water tank 20 and the washing device 40 to supply water to both. The water softener 60 can be configured to remove calcium and magnesium ions from the water, thereby reducing the amount of calcium and magnesium ions in the water.

[0132] The water tank 20 can be connected to one side of the washing device 40 and configured 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.

[0133] The steam generator 30 is connected to the second receiving cavity 27 and configured to supply steam to the washing cavity 41. The second receiving cavity 27 supplies water to the steam generator 30, which heats the water to generate steam. The steam is then introduced into the washing cavity 41 through the steam inlet 43 to sterilize and disinfect tableware and other items inside the washing cavity 41. Exemplarily, the steam generator 30 includes a heating cavity and heating elements such as a thick-film heating plate, a PTC heater, and heating tubes disposed within the heating cavity. The water inlet of the heating cavity is connected to the water outlet 22, and the water outlet of the heating cavity is connected to the steam inlet 43, allowing the generated steam to enter the washing cavity 41.

[0134] Optionally, the washing device 40 includes an inner tank and a spray assembly 44. The inner tank is located inside the housing and defines a washing chamber 41 configured 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 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.

[0135] The washing device 40 includes a water cup 50. The water cup 50 may 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.

[0136] 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 configured 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,

[0137] 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 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).

[0138] 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.

[0139] 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.

[0140] Referring to Figure 3, in some embodiments, the reversing structure 90 is a reversing valve. The dishwasher 100 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, in this embodiment, by making the inner diameter of the first connecting pipe 80 larger than the inner diameter of the second connecting pipe 81, the efficiency of water supply to the water tank 20 is further accelerated, which facilitates the generation of steam by the steam generator 30.

[0141] In other embodiments, the first connecting pipe 80 and the second connecting pipe 81 can also be directly connected to the water softener 60, and 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 open; when the first valve body is closed and the second valve body is open, the second water supply path is open.

[0142] In some embodiments, 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 to generate steam per cycle, while the water softener 60 supplies a larger amount of water per cycle. For example, the steam generator 30 requires 100 ml of water to generate steam per cycle, while the water softener 60 can supply up to 500 ml of water per cycle. 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 efficient.

[0143] Optionally, the cabinet has a base configured to support 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.

[0144] Referring to Figure 3, in some embodiments, the dishwasher 100 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 configured 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 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 from the water tank 20 to the steam generator 30.

[0145] The water tank 20 has a water outlet 22 that connects to the second receiving cavity 27 and is also 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, the 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, since the steam generator 30 is lower. 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.

[0146] In some embodiments, the water outlet 22 communicates with the bottom of the second receiving cavity 27. Specifically, the water outlet 22 can be formed on the bottom wall of the housing, and the pipe connecting the water outlet 22 and the steam generator 30 is connected to the bottom of the housing. 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 communicate with the second receiving cavity 27 from the side wall of the housing; this application embodiment does not limit this, provided that water can be present above the water outlet 22.

[0147] To facilitate communication between the water tank 20 and the atmosphere, the water tank 20 is 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 configured to allow fluid in the second receiving chamber 27 above the vent 23 to overflow 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.

[0148] In some embodiments, the steam inlet 43 is higher than the vent 23 in the height direction of the dishwasher 100. It is understood 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 foregoing, 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, the steam flow will not be disturbed because the steam inlet 43 is higher than the vent 23, ensuring that the steam can be smoothly discharged into the washing chamber 41.

[0149] In some embodiments, the dishwasher 100 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 oriented in 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.

[0150] 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.

[0151] Referring to Figures 3 and 4, in some embodiments, the water tank 20 includes a tank body and a partition 25. The partition 25 is disposed within the tank body and divides the space within the tank body 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 while dividing 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 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 to the specific configuration.

[0152] The following explanation continues with the embodiment where the water tank 20 is equipped with a partition 25:

[0153] 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.

[0154] In some embodiments, referring to FIG3, 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.

[0155] 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.

[0156] As shown in Figure 3, 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, the water softens in the resin chamber 62, and the water passing through the regeneration chamber 63 regenerates the resin in the resin chamber 62, forming regenerated water.

[0157] 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.

[0158] 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.

[0159] 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 configured to detect 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 too high, it is determined that regenerated water should be replenished.

[0160] In this embodiment, the water cup 50 is provided with a drain outlet communicating with the water collection chamber 51. The dishwasher 100 includes a drain pump connected to the water cup 50 and selectively communicating with the drain outlet. The controller is also configured 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 discharging the water in the water collection chamber 51. When the dishwasher 100 is discharging 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.

[0161] When the steam generator 30 becomes clogged or contaminated, a cleaning operation is required. As shown in Figure 4, in some embodiments, the dishwasher 100 includes a detergent dispenser 70. The detergent dispenser 70 is connected to the washing unit 40 and has a storage chamber configured to store detergent, which selectively communicates with a second receiving chamber 27. A controller is also configured to control the communication between the storage chamber and the second receiving chamber 27 and is configured to connect the storage chamber to the second receiving chamber 27 when cleaning of 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 chamber to the second receiving chamber 27, allowing detergent to flow into the second receiving chamber 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 chamber 27.

[0162] 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.

[0163] In some embodiments, the dishwasher 100 includes a detection device disposed in the detergent dispenser 70, configured to detect 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 disposed in the detergent dispenser 70 at different liquid level heights. When the detergent surface touches a probe, the probe emits a detection signal. Different detection signals correspond to different liquid level heights, thereby determining the current detergent level.

[0164] 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.

[0165] In some embodiments, the dishwasher 100 includes a filter device disposed in the water collection chamber 51. The filter device is configured to filter the fluid flowing into the water collection chamber 51 from the washing chamber 41. During the operation of the dishwasher 100, filtering the fluid can reduce or prevent scale and other impurities from circulating with the water flow, thereby reducing contamination and facilitating cleaning.

[0166] In related technologies, dishwashers use a water pump to draw water to a steam generator to produce steam. However, if the water pump fails to work, steam cannot be produced, affecting the lifespan of the steam generator and resulting in poor system reliability.

[0167] To address the above issues, in some embodiments, referring to Figures 5 and 6, the water tank 20 is provided with a water outlet 22 that communicates with the second receiving cavity 27. Understandably, water in the second receiving cavity 27 can flow out from the water outlet 22.

[0168] The steam generator 30 is connected to the water outlet 22. Water in the water tank 20 flows from the water outlet 22 to the steam generator 30. The steam generator 30 heats the fluid to generate steam. The steam is introduced into the washing chamber 41 through the steam inlet 43 to sterilize and disinfect the tableware and other items in the washing chamber 41.

[0169] In this embodiment, both the water outlet 22 and the steam inlet 43 are higher than the steam generator 30 in the height direction of the dishwasher 100, forming a communicating vessel structure together with the steam generator 30. Based on this communicating vessel structure, when the water level in the water tank 20 is higher than the water outlet 22, the 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, since the steam generator 30 is lower in height. Thus, water can flow to the steam generator 30 without the need for a water pump.

[0170] In other words, when the dishwasher 100 performs steam sterilization, the fluid flows along the flow path from the second receiving chamber 27 to the steam generator 30 to the washing chamber 41.

[0171] Thus, in this embodiment, the steam generator 30 is connected to the second receiving cavity 27 through the water outlet 22 on the water tank 20, and to the washing cavity 41 through the steam inlet 43 of the washing device 40. By setting the steam generator 30 below the water outlet 22 and the steam inlet 43, and forming a communicating vessel structure together with the intermediate connecting pipe, water in the water tank 20 can flow to the steam generator 30 without the need for a water pump. Compared to related technologies that use a water pump to supply water to the steam generator 30, the technical solution of this 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 water tank 20, the communicating vessel structure ensures that water flows through the steam generator 30 during operation, preventing dry burning. This avoids damage or shortened service life of the steam generator 30 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.

[0172] Referring to Figure 5, in some embodiments, the dishwasher 100 includes a one-way valve 31. The one-way valve 31 is disposed between the water tank 20 and the steam generator 30, configured 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 direction of the second receiving cavity 27 – steam generator 30 – washing cavity 41, preventing backflow of steam when the steam generator 30 is generating steam, allowing steam to enter the washing cavity 41, and ensuring that the water in the second receiving cavity 27 flows to the steam generator 30, thus ensuring the water replenishment effect of the water tank 20 to the steam generator 30.

[0173] In some embodiments, the water outlet 22 communicates with the bottom of the second receiving cavity 27, and the steam inlet 43 is positioned higher than the water outlet 22 in the height direction of the dishwasher 100. Specifically, the water outlet 22 can be formed on the bottom wall of the water tank 20, and the pipe connecting the water outlet 22 and the steam generator 30 is connected to the bottom of the water tank 20. This 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 communicate with the second receiving cavity 27 from the side wall of the water tank 20; this embodiment does not limit this, provided that water is available above the water outlet 22.

[0174] To allow the water tank 20 to communicate with the atmosphere, the water tank 20 is provided with a vent 23, which connects to the washing chamber 41. In some embodiments, the water tank 20 may be located on one side of the washing device 40, and the vent 23 may be formed on the side wall of the water tank 20, and 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 may also be configured to allow fluid in the second receiving chamber 27 that is higher than the vent 23 to overflow into the washing chamber 41. This can keep the water level in the second receiving chamber 27 below the vent 23, preventing excessive water from causing structural damage to the water tank 20.

[0175] In some embodiments, the steam inlet 43 is higher than the vent 23 in the height direction of the dishwasher 100. It is understood 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 foregoing, 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, the steam flow will not be disturbed because the steam inlet 43 is higher than the vent 23, ensuring that the steam can be smoothly discharged into the washing chamber 41.

[0176] As shown in Figure 5, in some embodiments of this application, the dishwasher 100 includes a water inlet valve 10 and a water softener. One end of the water inlet valve 10 is connected to a water source, and the other end is connected to the water softener. The controller is also configured to control the water inlet valve 10. When the water inlet valve 10 is open, the water source supplies water to the water softener; when the water inlet valve 10 is closed, the water source stops supplying water to the water softener. The water source can be a tap water pipe, a municipal pipeline, or a water storage device.

[0177] The water softener is connected to the second receiving chamber 27. The water softener can be configured to remove calcium and magnesium ions from the water, reducing their concentration. The water softener has a resin chamber, a regeneration chamber, and a switching valve. The resin chamber and regeneration chamber are connected, and both are also connected to the switching valve, which is controlled by a controller. The switching valve's operation determines whether water passes through the regeneration chamber. When water enters the resin chamber directly without passing through the regeneration chamber, the ion exchange resin in the resin chamber removes calcium and magnesium ions, reducing water hardness. When water passes through the regeneration chamber before entering the resin chamber, the water softens within the resin chamber, and the water regenerates the resin in the regeneration chamber.

[0178] However, even with a water softener, as the dishwasher 100 is used for a longer period of time, scale or impurities accumulate in the steam generator 30 and other pipes, causing blockages and poor water flow, requiring cleaning.

[0179] As shown in Figure 6, in some embodiments, the dishwasher 100 includes a detergent dispenser 70. The detergent dispenser 70 is connected to the washing unit 40 and has a storage chamber configured to store detergent, selectively communicating with a second receiving chamber 27. A controller is also configured to control the communication between the storage chamber and the second receiving chamber 27 and is configured to connect the storage chamber to the second receiving chamber 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 chamber and the second receiving chamber 27, allowing detergent to flow into the second receiving chamber 27 under gravity. Of course, in 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 chamber 27. 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.

[0180] In some embodiments, the dishwasher 100 includes a detection device disposed in the detergent dispenser 70, configured to detect 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 disposed in the detergent dispenser 70 at different liquid level heights. When the detergent surface touches a probe, the probe emits a detection signal. Different detection signals correspond to different liquid level heights, thereby determining the current detergent level.

[0181] 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.

[0182] In some embodiments, the dishwasher 100 includes a water cup 50. The water cup 50 may be a semi-enclosed structure arranged in a trough or cup shape. The water cup 50 is disposed below the washing device 40 and defines a water collection chamber 51. The water collection chamber 51 may communicate with the washing chamber 41, and fluid, such as water, within the washing chamber 41 may flow from the washing chamber 41 to the water collection chamber 51 under gravity. The water collection chamber 51 is also configured to supply water to the washing chamber 41, for example, the water collection chamber 51 may selectively communicate with the spray nozzle of a spray assembly, and under the control of a controller, water in the water collection chamber 51 may be delivered to the spray nozzle and sprayed out to clean dishes and other items in the washing chamber 41. To supply water to the water collection chamber 51, a water softener is connected to the water collection chamber 51 in addition to being connected to the second receiving chamber 27. When the controller opens the water inlet valve, fluid also flows through the water softener and into the water collection chamber 51.

[0183] In some embodiments, the dishwasher 100 includes a three-way assembly, which may be a three-way pipe or a three-way connector, and has a first water inlet, a second water inlet, and a third water inlet. The first water inlet is connected to the water softener and serves as the water inlet. The second and third water inlets are respectively connected to the second receiving cavity 27 and the water collecting cavity 51 and are used for water dispensing. It is understood that without using the three-way assembly, the water softener can be connected to the water cup 50 and the water tank 20 through two interfaces. This embodiment uses a three-way assembly, which facilitates pipe connection, reduces the structural complexity of the water softener 60, avoids secondary design, and reduces costs.

[0184] 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.

[0185] 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, wherein, include: Water softener; 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, and the first receiving cavity is connected to the water softener. Washing device, having a washing chamber; A steam generator, one end of which is connected to the second receiving chamber and the other end of which is connected to the washing chamber to provide steam; The water tank and the washing device are both connected to the outlet of the water softener. The water softener, the water tank, the steam generator and the washing device are sequentially connected to form a first water supply circuit. The water softener and the washing device are connected to form a second water supply circuit.

2. The dishwasher as claimed in claim 1, wherein, include: The washing device is equipped with a water cup, which has a water collection chamber. The three-way assembly has a first water inlet, a second water inlet, and a third water inlet. The first water inlet is connected to the water softener, and the second and third water inlets are respectively connected to the first receiving cavity and the water cup.

3. The dishwasher as described in claim 2, wherein, include: The first connecting pipe has one end connected to the second water inlet and the other end connected to the first receiving cavity; and The second connecting pipe is connected at one end to the third water inlet and at the other end to the water collection chamber; The inner diameter of the first connecting pipe is larger than the inner diameter of the second connecting pipe.

4. The dishwasher as described in claim 3, wherein, The volume of the first receiving cavity is greater than the volume of the second receiving cavity.

5. The dishwasher as claimed in any one of claims 1-4, wherein, include: The base is configured to support the washing device, which includes an inner tank and a water cup connected below the inner tank. The water softener is connected to both the water cup and the water tank. The water tank is connected to the side wall of the inner tank. The steam generator is located on the base.

6. The dishwasher as claimed in claim 5, wherein, The water tank has a water outlet that communicates with the second receiving cavity, and the water outlet is connected to the steam generator; The inner tank is provided with a steam inlet that connects 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.

7. The dishwasher as claimed in claim 6, wherein, include: A steam nozzle is installed on the side wall of the inner tank, located at the steam inlet, and the steam nozzle connects the steam generator and the washing chamber; 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.

8. The dishwasher as claimed in claim 7, wherein, The water tank is provided with a vent that communicates with the second receiving cavity, and the vent is also connected to the washing cavity; In the height direction of the dishwasher, the vent is higher than the preset water level.

9. The dishwasher as claimed in any one of claims 1-8, wherein, The water tank includes: Box; and 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.

10. The dishwasher as claimed in claim 9, wherein, At least the upper half of the separator is inclined.

11. The dishwasher as claimed in any one of claims 2-8, wherein, include: The inlet valve connects to the water inlet of the water softener; and The controller is configured to close the inlet valve when the regenerated water produced by the water softener reaches the highest water level or maximum volume in the first receiving chamber below the overflow port.

12. The dishwasher of claim 11, wherein, 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 includes: 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.

13. The dishwasher of claim 12, wherein, When the water softener produces regenerated water, the inlet valve, the regeneration chamber, the resin chamber, the first receiving chamber, and the water cup are sequentially connected to form a first regenerated water flow path, and the inlet valve, the regeneration chamber, the resin chamber, and the water cup are connected to form a second regenerated water flow path.

14. The dishwasher as claimed in claim 1, wherein, The dishwasher includes: A reversing structure connects to the outlet end of the water softener; The water softener, the reversing structure, the water tank, the steam generator, and the washing device are sequentially connected to form the first water supply circuit, and the water softener, the reversing structure, and the washing device are connected to form the second water supply circuit. The reversing structure is configured to switch between the first water supply circuit and the second water supply circuit.

15. The dishwasher of claim 14, wherein, The reversing structure is a reversing valve, and the dishwasher includes: The first connecting pipe has one end connected to the reversing valve and the other end connected to the first receiving cavity; and The second connecting pipe is connected at one end to the reversing valve and at the other end to the washing chamber; The inner diameter of the first connecting pipe is larger than the inner diameter of the second connecting pipe.

16. The dishwasher of claim 14, wherein, The reversing structure includes a first valve body and a second valve body; The dishwasher includes: The first connecting pipe has one end connected to the water softener and the other end connected to the first receiving cavity; and The second connecting pipe is connected at one end to the water softener and at the other end to the washing chamber. 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.

17. The dishwasher as claimed in any one of claims 14-16, wherein, include: The inlet valve connects to the water inlet of the water softener; and 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.

18. The dishwasher as claimed in claim 1, wherein, The water tank has a water outlet that communicates with the second receiving cavity, and the steam generator is connected to the water outlet. The washing chamber has a steam inlet, which is connected to the steam generator; In the height direction of the dishwasher, both the water outlet and the steam inlet are higher than the steam generator, so that they together form a communicating vessel structure.

19. The dishwasher of claim 18, wherein, include: A one-way valve is disposed between the water tank and the steam generator, configured to allow fluid to flow unidirectionally from the water outlet to the steam generator.

20. The dishwasher as claimed in claim 18 or 19, wherein, The water outlet is connected to the second receiving cavity at the bottom of the second receiving cavity, and the steam inlet is positioned higher than the water outlet in the height direction of the dishwasher.

21. The dishwasher as claimed in any one of claims 18-20, wherein, The water tank is provided with a vent hole, which is connected to the washing chamber and is spaced apart from the water outlet hole in the height direction of the dishwasher.

22. The dishwasher of claim 21, wherein, In the height direction of the dishwasher, the steam inlet is higher than the vent.

23. The dishwasher as described in any one of claims 18-22, characterized in that, The washing device includes a water cup, the water cup has a water collection chamber, and the dishwasher includes: Inlet valve; and The three-way assembly has a first water inlet, a second water inlet, and a third water inlet. The first water inlet is connected to the water inlet valve, and the second and third water inlets are respectively connected to the water tank and the water cup.

24. The dishwasher as claimed in any one of claims 18-23, characterized in that, include: A detergent dispenser is provided in the washing device and configured to hold detergent; the detergent dispenser is connected to the water tank. A cleaning valve is disposed between the cleaning agent box and the water tank, and is configured to control the opening and closing of the cleaning agent box and the receiving cavity; and A controller configured to open the cleaning valve when the steam generator needs to be cleaned.

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