A dishwasher

Abstract

The application discloses a dishwasher, and belongs to the technical field of washing equipment, and aims to solve the technical problem of low heat utilization rate of a dishwasher for discharged washing water. The dishwasher comprises an inner container, a water tank, a drain pipe, a heat recovery part and a drain valve; the drain valve is provided with a valve water inlet, a first valve water outlet and a second valve water outlet; and the heat recovery part is connected with the drain pipe through a heat exchange water outlet. The valve water inlet is communicated with a tank cavity; the first valve water outlet is communicated with a heat exchange water inlet of the heat recovery part; and the second valve water outlet is communicated with a pipe water inlet of the drain pipe. When the dishwasher discharges hot water, the valve water inlet is controlled to be communicated with the first valve water outlet; and when the dishwasher discharges cold water, the valve water inlet is controlled to be communicated with the second valve water outlet. The cold water discharged in the cold bleaching stage is directly discharged from the drain pipe without the heat recovery part. Since the cold water does not pass through the heat recovery part, the possibility that the temperature of a water tank is reduced due to heat exchange between the cold water and the water tank is reduced, and the heat utilization rate of the dishwasher for the discharged hot water is improved.

Description

Technical Field

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

[0002] A dishwasher is a household appliance used to automatically clean dishes, cookware, and tableware. It removes dirt and food residue from dishes by spraying high-pressure water through spray arms.

[0003] In related technologies, dishwashers heat water before spraying it through spray arms during the main wash and hot rinse stages to enhance cleaning effectiveness. To reduce the dishwasher's heating energy consumption, a water tank is installed outside the inner tub for water storage. The tank is connected to the sink, allowing water to flow into the sink for washing dishes. The sink is also connected to heat exchange pipes, part of which is located inside the tank. Washing water discharged from the sink flows to the heat exchange pipes, exchanges heat with the water in the tank, and is then discharged. During the main wash, the hot washing water exchanges heat with the water in the tank, raising its temperature. During the hot rinse stage, this heated water from the tank is used as part of the intake water to wash dishes in the inner tub, further reducing the dishwasher's heating energy consumption.

[0004] However, these dishwashers suffer from low heat utilization efficiency in the discharged washing water. Utility Model Content

[0005] This application provides a dishwasher that solves the technical problem of low heat utilization rate of the discharged washing water in related dishwashers.

[0006] On one hand, embodiments of this application provide a dishwasher, including:

[0007] The inner liner has a washing chamber;

[0008] The water tank is located at the bottom of the inner tank and has a cavity that is connected to the washing chamber.

[0009] A water tank is located outside the inner liner. The water tank has a water storage cavity that is connected to the tank cavity.

[0010] A drain pipe has a cavity, an inlet, and an outlet; the inlet and outlet are connected to the cavity.

[0011] A heat recovery component, at least partially disposed on the outside of the water tank, has the following features:

[0012] Replace the hot water chamber;

[0013] The heat exchange inlet is connected to the heat exchange chamber.

[0014] The heat exchange outlet is connected to the heat exchange chamber and the pipe cavity, respectively;

[0015] Drain valve, having:

[0016] The valve inlet is connected to the tank cavity;

[0017] The outlet of the first valve is connected to the heat exchange inlet.

[0018] The outlet of the second valve is connected to the inlet of the pipe.

[0019] The drain valve is used to control the connection between the outlet of the first valve and the outlet of the second valve and the inlet of the valve.

[0020] The dishwasher in this embodiment controls the drain valve to direct hot water during the main wash and hot rinse stages to the heat recovery unit for heat exchange with the water tank, thereby increasing the water temperature in the tank. Cold water discharged during the cold rinse stage bypasses the heat recovery unit and is discharged directly from the drain pipe. Because the cold water does not pass through the heat recovery unit, the possibility of the water tank temperature dropping due to heat exchange with the cold water is reduced, thus improving the dishwasher's heat utilization rate of the discharged hot water.

[0021] In some embodiments of this application, the dishwasher further includes a one-way flow control component, which is disposed at one end of the heat recovery component near the heat exchange outlet. The one-way flow control component is used to make the water in the heat exchange chamber flow unidirectionally from the heat exchange inlet to the heat exchange outlet.

[0022] With this configuration, the unidirectional flow control element is used to ensure that water flows unidirectionally from the heat exchange inlet to the heat exchange outlet, thereby reducing the possibility of water flowing back into the heat exchange chamber from the drain pipe.

[0023] In some embodiments of this application, the dishwasher further includes a respirator, which is configured as follows:

[0024] Drainage channels;

[0025] The first water inlet is connected to both the drainage channel and the tank cavity.

[0026] The first outlet is connected to both the drainage channel and the valve inlet.

[0027] With this setup, the water in the tank flows through the breather to the valve inlet, and then to the hot water exchange chamber or drain pipe. The breather reduces the possibility of a siphon effect between the tank and the valve inlet, thus reducing the possibility of water being continuously pumped out of the tank due to the siphon effect.

[0028] In some embodiments of this application, the respirator is further configured to include:

[0029] Water inlet channel;

[0030] The second water inlet is connected to the water inlet channel and is also used to connect to the water source;

[0031] The second outlet is connected to both the water inlet channel and the water storage chamber.

[0032] With this design, the water in the inlet pipe flows to the water tank after passing through the breather. The inlet pipe and the water tank are connected through the breather, eliminating the need for additional piping to connect them and simplifying the dishwasher's structure.

[0033] In some embodiments of this application, the respirator is further configured to include:

[0034] The third outlet is connected to the water inlet channel;

[0035] The third inlet is connected to the water inlet channel, and the third inlet is farther away from the second inlet than the third outlet.

[0036] The dishwasher also includes a water softener, which has the following structure:

[0037] Salt warehouse;

[0038] The softening inlet is connected to the salt tank and the third outlet, respectively.

[0039] The softened water outlet is connected to the salt tank and the third water inlet, respectively.

[0040] With this setup, water flowing into the inlet channel from the second inlet enters the softening inlet through the third outlet, and then flows into the salt tank. The softening salt in the salt tank softens the water. The softened water then flows from the softened water outlet back into the inlet channel through the third inlet, and then into the storage chamber through the second outlet. In other words, the water flowing to the breather is softened by the water softener before flowing into the water tank, and then into the water trough, reducing the amount of calcium and magnesium ions in the water that deposit on the water tank, water trough, spray arms, and inner liner to form scale.

[0041] In some embodiments of this application, the respirator is further configured to include:

[0042] Water outlet channel;

[0043] The fourth water inlet is connected to both the water outlet and the water storage chamber.

[0044] The fourth outlet is connected to both the water outlet channel and the trough cavity.

[0045] With this design, the water in the tank flows through the breather before entering the sink. The tank and sink are connected by the breather, eliminating the need for additional piping to connect them and simplifying the dishwasher's structure.

[0046] In some embodiments of this application, the dishwasher further includes a second water inlet valve, which is disposed on the breather and is used to control the connection or disconnection of the fourth water inlet and the fourth water outlet.

[0047] With this configuration, the second inlet valve can be used to block or unblock the outlet channel, thereby connecting or disconnecting the fourth inlet and the fourth outlet. The second inlet valve is located within the breather, simplifying the dishwasher's piping structure.

[0048] In some embodiments of this application, the dishwasher further includes:

[0049] The water inlet pipe has one end connected to the second water inlet and the other end connected to the water source.

[0050] The first inlet valve is located on the inlet pipe.

[0051] With this configuration, the first inlet valve controls the connection or disconnection of the water source and the tank cavity. When the first inlet valve is open, water can flow into the tank cavity through the inlet pipe. When the first inlet valve is closed, water cannot flow into the tank cavity through the inlet pipe.

[0052] In some embodiments of this application, the dishwasher further includes a spray arm, which is disposed in the washing chamber and has a spray chamber.

[0053] The sink also features:

[0054] The water inlet of the tank is connected to both the tank cavity and the water storage cavity;

[0055] The drain outlet of the tank is connected to both the tank cavity and the valve inlet, respectively.

[0056] The water outlet of the tank is connected to both the tank cavity and the spray cavity.

[0057] This design, by constructing a water inlet, a water outlet, and a water drain on the water tank, makes it easier to connect and assemble the water tank directly or indirectly with the water tank, drain valve, and spray arm.

[0058] On the other hand, embodiments of this application also provide a dishwasher, including:

[0059] The inner liner has a washing chamber;

[0060] The water tank is located at the bottom of the inner tank and has a cavity that is connected to the washing chamber.

[0061] A water tank is located outside the inner liner. The water tank has a water storage cavity that is connected to the tank cavity.

[0062] A drain pipe has a cavity, a water inlet, and a water outlet; the water inlet is connected to the cavity.

[0063] A heat recovery component, at least partially disposed on the outside of the water tank, has the following features:

[0064] Replace the hot water chamber;

[0065] The heat exchange inlet is connected to both the heat exchange chamber and the pipe cavity.

[0066] The heat exchange outlet is connected to the heat exchange chamber and the pipe chamber respectively, and the heat exchange outlet is closer to the pipe outlet than the heat exchange inlet.

[0067] The first control valve is located at the end of the heat recovery unit near the heat exchange inlet.

[0068] The second control valve is installed on the drain pipe, and is located between the pipe inlet and the pipe outlet.

[0069] The dishwasher in this embodiment controls the opening of a first control valve and the closing of a second control valve to allow hot water during the main wash and hot rinse stages to flow to the heat recovery unit and exchange heat with the water tank, thereby increasing the water temperature in the tank. By controlling the first control valve to close and the second control valve to open, the cold water discharged during the cold rinse stage is discharged directly from the drain pipe without passing through the heat recovery unit. Because the cold water does not pass through the heat recovery unit, the possibility of the water tank temperature decreasing due to heat exchange between the cold water and the tank is reduced, thus improving the dishwasher's heat utilization rate of the discharged hot water. Attached Figure Description

[0070] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0071] Figure 1 A schematic diagram of the dishwasher according to an embodiment of this application is shown from a first-view perspective;

[0072] Figure 2 A schematic diagram of the dishwasher according to an embodiment of this application is shown from a second perspective;

[0073] Figure 3 This invention provides a schematic diagram of the dishwasher from a third-person perspective, representing an embodiment of the present application.

[0074] Figure 4 A schematic diagram of the internal structure of the water tank in a dishwasher according to an embodiment of this application is shown;

[0075] Figure 5 A schematic diagram of the water tank in a dishwasher according to an embodiment of this application is shown;

[0076] Figure 6 It shows Figure 3 A schematic diagram of the structure of a dishwasher after the inner drum has been removed;

[0077] Figure 7This invention illustrates a schematic diagram of the respirator in a dishwasher according to an embodiment of the present application from a fourth-view perspective.

[0078] Figure 8 A schematic diagram of the internal structure of the breather in a dishwasher according to an embodiment of this application is shown;

[0079] Figure 9 This paper shows a schematic diagram of the structure of the breather in the dishwasher according to an embodiment of the present application from a fifth perspective;

[0080] Figure 10 A schematic diagram of the water tank in a dishwasher according to an embodiment of this application is shown.

[0081] Explanation of reference numerals in the attached figures:

[0082] 100. Inner liner;

[0083] 110. Washing chamber;

[0084] 200. Sink;

[0085] 201. Tank cavity; 202. Tank inlet;

[0086] 203. Drainage outlet of the tank; 204. Water outlet of the tank;

[0087] 300. Water tank;

[0088] 301. Water storage chamber; 302. Water inlet of the tank;

[0089] 303. Water outlet of the tank; 304. Water inlet channel;

[0090] 305. Overflow channel;

[0091] 400. Heat recovery components;

[0092] 401. Heat exchanger inlet; 402. Heat exchanger outlet;

[0093] 500. Respirator;

[0094] 511. Drainage channel; 512. First water inlet;

[0095] 513. First water outlet; 521. Water inlet channel;

[0096] 522. Second inlet; 531. Second outlet;

[0097] 523. Fourth outlet; 532. Fourth inlet;

[0098] 533. Water outlet channel; 541. Third water outlet;

[0099] 542. Third water inlet;

[0100] 600. Water softener;

[0101] 601. Softening inlet; 602. Softening outlet;

[0102] 700. Washing heating pump;

[0103] 701. Pump inlet; 702. Pump outlet;

[0104] 810. Drainage pipe;

[0105] 811. Pipe inlet; 812. Pipe outlet;

[0106] 820. Water inlet pipe;

[0107] 830. Water outlet pipe;

[0108] 840. Water inlet pipe;

[0109] 910. Drain valve;

[0110] 911. Valve inlet; 912. First valve outlet;

[0111] 913. Second valve outlet;

[0112] 920. First inlet valve;

[0113] 930. Second inlet valve;

[0114] 940. Unidirectional flow control components. Detailed Implementation

[0115] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0116] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0117] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0118] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0119] To address the technical problem of low heat utilization efficiency of discharged washing water in dishwashers, this application provides a dishwasher that controls the drain valve to direct hot water during the main wash and hot rinse stages to a heat recovery unit for heat exchange with the water tank, thereby increasing the water temperature in the tank. Cold water discharged during the cold rinse stage bypasses the heat recovery unit and is discharged directly from the drain pipe. Because the cold water does not pass through the heat recovery unit, the possibility of the water tank temperature dropping due to heat exchange with the cold water is reduced, thus improving the dishwasher's heat utilization efficiency of the discharged hot water.

[0120] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0121] The dishwasher provided in this application includes a cabinet and a door.

[0122] refer to Figure 1 and Figure 2 The dishwasher has a washing chamber 110 inside. The front of the washing chamber 110 has an operating opening, through which tableware or cookware can be placed into or removed from the washing chamber 110. The front of the washing chamber 110 refers to the side of the washing chamber 110 that faces the user during normal use.

[0123] The door is rotatably connected to the housing, and the door is used to open or close the operating port.

[0124] In some possible implementations of the embodiments of this application, reference is made to Figure 1 and Figure 2 The box body may include a box shell and an inner liner 100. The box shell may have a receiving cavity, and the inner liner 100 may be disposed in the receiving cavity. The inner liner 100 has a washing chamber 110.

[0125] In some possible implementations of this application, the dishwasher may further include a dish rack disposed within the washing chamber 110, used for placing tableware or cookware. The dish rack is slidably disposed within the inner liner 100, and the sliding direction of the dish rack may be along the depth direction of the inner liner 100. When it is necessary to place tableware or cookware in the dish rack, at least a portion of the dish rack can be pulled out from the washing chamber 110 to facilitate the placement of the cookware or tableware. After placement, the dish rack is then pushed back into the washing chamber 110.

[0126] In some possible implementations of this application, the dishwasher may further include a spray arm, which may be disposed within the inner tub 100. The spray arm may have multiple nozzles, which are used to spray water into the washing chamber 110 to rinse stains on tableware or kitchen utensils.

[0127] There can be one or more spray arms. In the implementation with two or more spray arms, multiple spray arms can be spaced apart along the height direction of the inner liner 100. Multiple spray arms can reduce cleaning dead corners and improve the cleaning effect on tableware.

[0128] In some possible implementations of the embodiments of this application, reference is made to Figure 2 The dishwasher may also include a sink 200, which may be disposed at the bottom of the inner tub 100. The sink 200 has a cavity 201 with a top opening. The top of the cavity 201 has a slot. The cavity 201 communicates with the washing chamber 110 through the slot. Water in the washing chamber 110 can flow downward into the cavity 201.

[0129] refer to Figure 3 The dishwasher may also include a water inlet pipe 820, which may be directly or indirectly connected to the cavity 201. The cavity 201 may be directly or indirectly connected to a water source (such as tap water) through the water inlet pipe 820.

[0130] refer to Figure 3 A first inlet valve 920 may be installed on the inlet pipe 820. The first inlet valve 920 is used to control the connection or disconnection of the water source with the tank cavity 201.

[0131] When the first inlet valve 920 is open, water can flow from the inlet pipe 820 into the tank cavity 201. That is to say, the water flow path into the tank cavity 201 is: water source → inlet pipe 820 → tank cavity 201.

[0132] When the first inlet valve 920 is closed, water cannot flow from the inlet pipe 820 into the tank cavity 201.

[0133] In some possible implementations of the embodiments of this application, reference is made to Figure 3The dishwasher may also include a washing heat pump 700, which may be disposed within the receiving cavity and located below the inner tub 100.

[0134] refer to Figure 3 The washing heating pump 700 may have a pump inlet 701, which may be connected to the tank cavity 201.

[0135] refer to Figure 3 The washing heating pump 700 may also have a pump outlet 702, which may be connected to the spray chamber.

[0136] The washing heater pump 700 can accelerate the flow rate of water from the pump inlet 701 to the pump outlet 702. The washing heater pump 700 can heat the flowing water to increase its temperature, thereby enhancing the dishwasher's cleaning effect.

[0137] The dishwasher's washing program can include four stages: main wash, cold rinse, hot rinse, and drying. The main wash, cold rinse, and hot rinse stages require water to be introduced into the water tank 200. The main wash and hot rinse stages require heating the water flowing from the water tank 200 to the spray arms to increase the water temperature and enhance the cleaning effect.

[0138] When the washing heating pump 700 is turned on, the water in the tank 201 flows through the pump inlet 701 and the pump outlet 702 to the spray chamber, and is sprayed out from the nozzle into the washing chamber 110 to rinse the tableware or kitchen utensils in the washing chamber 110.

[0139] The water flow path from the tank cavity 201 to the inner tank 100 is as follows: tank cavity 201 → pump inlet 701 → pump outlet 702 → spray chamber → nozzle → washing chamber 110.

[0140] Water sprayed from the spray arm into the washing chamber 110 flows down into the tank chamber 201, and then flows from the tank chamber 201 to the washing heating pump 700, the spray chamber, and the washing chamber 110 in sequence, thereby reusing the water, reducing the amount of water required to wash dishes, and reducing the water consumption of the dishwasher.

[0141] In some possible implementations of the embodiments of this application, reference is made to Figure 1 , Figure 2 and Figure 3 The dishwasher may also include a water tank 300, which may be located inside the receiving cavity or outside the inner tank 100.

[0142] refer to Figure 4 The water tank 300 may have a water storage cavity 301, which can store water and can be connected to the tank cavity 201.

[0143] refer to Figure 4 and Figure 5 The water tank 300 may be configured with a tank inlet 302 and a tank outlet 303, which are respectively connected to the water storage chamber 301. Water can flow into the water storage chamber 301 from the tank inlet 302 and flow out from the tank outlet 303.

[0144] The water outlet 303 can be located at the bottom of the water tank 300 so that the water in the water storage chamber 301 can flow out from the water outlet 303 under the action of gravity.

[0145] Water tank 300 can be connected between water inlet pipe 820 and water tank 200. Water inlet pipe 820 can be connected to water inlet 302 of water tank 300 through pipe or other flow channel structure. Water tank 200 can be connected to water outlet 303 of water tank 300 through pipe or other flow channel structure.

[0146] refer to Figure 3 The dishwasher may also include a second water inlet valve 930, which can be used to control the connection or disconnection of the water storage chamber 301 and the tank chamber 201.

[0147] During the main wash and hot rinse stages, when water is introduced, both the first inlet valve 920 and the second inlet valve 930 are opened, and the water source flows from the inlet pipe 820 to the water tank 300 and then into the water tank 200. In other words, the water flow path into the tank cavity 201 is: water source → inlet pipe 820 → water storage cavity 301 → tank cavity 201.

[0148] After the drying phase of the dishwasher is completed, the washing process of the dishwasher is also completed. After the drying phase is completed, the first water inlet valve 920 is opened and the second water inlet valve 930 is closed, and water flows from the water inlet pipe 820 into the water tank 300 so that a certain amount of water is stored in the water storage chamber 301.

[0149] Since the air temperature in the environment where the dishwasher is located is usually higher than the temperature of the tap water flowing into the dishwasher, the water in the water storage chamber 301 can absorb the temperature of the air in the environment where the water tank 300 is located, thus raising the water temperature in the water tank 300.

[0150] After the drying stage is over, the temperature of the inner tank 100 is high, and the water in the water storage chamber 301 can absorb the temperature of the inner tank 100, causing the water temperature in the water tank 300 to rise.

[0151] During the main wash phase of the next washing cycle, both the first inlet valve 920 and the second inlet valve 930 are opened, and water flows from the inlet pipe 820 to the water tank 300 and then to the sink 200. Since the water temperature in the water tank 300 is higher than that of the water source, the water in the water tank 300 is used as part of the inlet water for washing, saving the energy consumption of heating the water in the water tank 300 from the water source temperature to room temperature, and reducing the heating energy consumption of the washing heating pump 700.

[0152] In some possible implementations of the embodiments of this application, reference is made to Figure 4 The water tank 300 may be constructed with a water inlet channel 304, which is connected to the tank inlet 302.

[0153] The tank inlet 302 can be located at the bottom of the water tank 300. The bottom end of the water inlet channel 304 can communicate with the tank inlet 302, and the top end of the water inlet channel 304 can extend above the water storage chamber 301. The top end of the water inlet channel 304 can communicate with the water storage chamber 301. Water flowing into the water tank 300 from the tank inlet 302 flows towards the water inlet channel 304, then flows upward along the water inlet channel 304, and flows into the water storage chamber 301.

[0154] refer to Figure 4 The water tank 300 may also be equipped with an overflow channel 305, which can be connected to the top of the water inlet channel 304 and to the washing chamber 110. When the water outlet 303 is blocked and water cannot flow out, the water flowing into the water tank 300 from the water inlet 302 flows to the water inlet channel 304, then flows upward along the water inlet channel 304, and flows into the washing chamber 110 through the overflow channel 305.

[0155] It should be noted that when the water outlet 303 is blocked and water cannot flow out, the water flowing into the water tank 300 from the water inlet 302 flows to the water inlet channel 304, and then flows upward along the water inlet channel 304. Most of the water at the top of the water inlet channel 304 will flow into the washing chamber 110, and a smaller portion will flow into the water storage chamber 301 and replace a small amount of water in the water storage chamber 301.

[0156] In some possible implementations of the embodiments of this application, reference is made to Figure 2 and Figure 3 The dishwasher may also include a heat recovery unit 400. The heat recovery unit 400 can be a heat exchange coil (such as...) Figure 2 and Figure 3 (as shown), or a hot water tank 300, etc. At least a portion of the heat recovery component 400 can be disposed on the outside of the water tank 300. The heat recovery component 400 can be attached to the side of the water tank 300 away from the inner tank 100, or have a small gap from the side of the water tank 300 away from the inner tank 100. The heat recovery component 400 can exchange heat with the water tank 300.

[0157] refer to Figure 6 The heat recovery component 400 may be configured with a heat exchange chamber, a heat exchange inlet 401, and a heat exchange outlet 402. The heat exchange inlet 401 and the heat exchange outlet 402 are respectively connected to the heat exchange chamber.

[0158] In some possible implementations of the embodiments of this application, reference is made to Figure 3 and Figure 6 The dishwasher may also include a drain valve 910, which may be a three-way valve with one inlet and two outlets. The drain valve 910 may have a valve inlet 911, a first valve outlet 912, and a second valve outlet 913. The drain valve 910 is used to control the connection between one of the first valve outlet 912 and the second valve outlet 913 and the valve inlet 911.

[0159] The valve inlet 911 can be connected to the tank cavity 201 through a pipe and / or other flow channel structure.

[0160] The first valve outlet 912 can be connected to the heat exchange inlet 401 through a pipe and / or other flow channel structure.

[0161] refer to Figure 3 and Figure 6 The dishwasher may also include a drain pipe 810. The drain pipe 810 may have a cavity, a pipe inlet 811, and a pipe outlet 812. The pipe inlet 811 and the pipe outlet 812 are respectively connected to the cavity. The pipe inlet 811 may be connected to the second valve outlet 913.

[0162] The heat exchange outlet 402 can be connected to the cavity of the drain pipe 810, and the heat exchange drain outlet is closer to the pipe outlet 812 than the heat exchange inlet 401.

[0163] During the main wash stage, the drain valve 910 controls the connection between the valve inlet 911 and the first valve outlet 912, while disconnecting the valve inlet 911 from the second valve outlet 913. The water discharged during the main wash stage is at a higher temperature, and the water in the water tank 200 flows through the drain valve 910 to the hot water exchange chamber. If the drainage volume is large and the hot water exchange chamber is full but water remains, the water in the hot water exchange chamber will flow to the drain pipe 810 and be discharged. After the main wash stage drainage is completed, the hot water exchange chamber stores the hot water discharged during the main wash stage, raising the temperature of the heat recovery unit 400. The heat from the heat recovery unit 400 can heat the water tank 300, further increasing the temperature of the water in the water tank 300.

[0164] During the cold rinsing stage, when water is introduced, the first inlet valve 920 is opened and the second inlet valve 930 is closed. Water flows into the water tank 300 through the inlet pipe 820 and the tank inlet 302, then flows upward along the inlet channel 304 and into the washing chamber 110.

[0165] During the cold rinsing stage, the drain valve 910 controls the valve inlet 911 to be connected to the second valve outlet 913, while disconnecting the inlet from the first valve outlet 912. The cold water discharged during the cold rinsing stage is discharged directly from the drain pipe 810 without passing through the heat recovery component 400.

[0166] During the hot rinsing stage, both the first inlet valve 920 and the second inlet valve 930 are opened, and water flows from the inlet pipe 820 to the water storage chamber 301 and then into the water tank 200. The hot water in the water storage chamber 301 is used as part of the incoming water for washing, which improves the heat utilization rate of the dishwasher for the discharged washing water and reduces the heating energy consumption of the washing heating pump 700.

[0167] During the hot rinse stage, the drain valve 910 connects the control valve inlet 911 to the first valve outlet 912, while disconnecting the control valve inlet 911 from the second valve outlet 913. The water discharged during the hot rinse stage is at a higher temperature, and the water in the water tank 200 flows through the drain valve 910 to the hot water exchange chamber. The hot water discharged during the hot rinse stage replaces the hot water discharged during the main wash stage. After the hot rinse stage drainage is completed, the hot water exchange chamber stores the hot water discharged during the hot rinse stage, raising the temperature of the heat recovery unit 400. The heat from the heat recovery unit 400 can heat the water tank 300, further increasing the temperature of the water in the water tank 300. Utilizing the water in the water tank 300 as part of the incoming water for washing improves the dishwasher's heat utilization rate of the discharged washing water.

[0168] In this embodiment, by controlling the drain valve 910, the hot water during the main wash and hot rinse stages flows to the heat recovery unit 400 to exchange heat with the water tank 300, thereby increasing the temperature of the water in the water tank 300. The cold water discharged during the cold rinse stage bypasses the heat recovery unit 400 and is discharged directly from the drain pipe 810. Because the cold water does not pass through the heat recovery unit 400, the possibility of the water tank 300's temperature dropping due to heat exchange with the cold water is reduced, thus improving the dishwasher's heat utilization rate of the discharged hot water.

[0169] In some possible implementations of the embodiments of this application, reference is made to Figure 3 and Figure 6 The dishwasher may also include a one-way flow control element 940. The one-way flow control element 940 may be a one-way valve (such as...). Figure 6 (as shown), or a ball valve, or other control device that allows fluid to flow in one direction.

[0170] The unidirectional flow control element 940 can be set at one end of the heat recovery element 400 near the heat exchange outlet 402. The unidirectional flow control element is used to make water flow unidirectionally from the heat exchange inlet 401 to the heat exchange outlet 402, so as to reduce the possibility of water flowing back from the drain pipe 810 into the heat exchange chamber.

[0171] In some possible implementations of the embodiments of this application, reference is made to Figure 2 , Figure 3 and Figure 6 The dishwasher may also include a respirator 500. (Reference) Figure 7 and Figure 8 The respirator 500 may be configured with a drainage channel 511, a first water inlet 512 and a first water outlet 513. The first water inlet 512 and the first water outlet 513 may be connected to the drainage channel 511 respectively.

[0172] refer to Figure 6 The first inlet 512 can also be connected to the tank cavity 201 through a pipe and / or other flow channel structure.

[0173] refer to Figure 6 The first outlet 513 can also be connected to the valve inlet 911 through a pipe and / or other flow channel structure.

[0174] The respirator 500 may have an exhalation valve, which may be located in the drain channel 511. The exhalation valve opens when the drain channel 511 is under negative pressure to allow air to enter the drain channel 511, thereby reducing the possibility of a siphon effect between the water tank 200 and the valve inlet 911.

[0175] After passing through the breather 500, the water in the water tank 200 flows to the valve inlet 911, and then to the hot water exchange chamber or the drain pipe 810. The breather 500 can reduce the possibility of a siphon effect between the water tank 200 and the valve inlet 911, thereby reducing the possibility of the water in the water tank 200 being continuously pumped away due to the siphon effect.

[0176] In some possible implementations of the embodiments of this application, reference is made to Figure 8 The breathing apparatus 500 may also be configured with a water inlet channel 521, a second water inlet 522, and a second water outlet 531. The second water inlet 522 and the second water outlet 531 may be connected to the water inlet channel 521 respectively.

[0177] refer to Figure 6 The second water inlet 522 can also be connected to the inner cavity of the water inlet pipe 820. That is to say, the water inlet pipe 820 can be connected to the second water inlet 522 of the respirator 500, and the second water inlet 522 is indirectly connected to the water source through the water inlet pipe 820.

[0178] The second outlet 531 can also be connected to the water storage chamber 301.

[0179] The water source can flow from the inlet pipe 820 through the breather 500 and then into the water tank 300. In other words, the water flow path into the water tank 300 is: water source → inlet pipe 820 → breather 500 → water storage chamber 301.

[0180] The water in the inlet pipe 820 flows to the water tank 300 after passing through the breather 500. The inlet pipe 820 and the water tank 300 are connected through the breather 500, eliminating the need for additional pipes to connect the inlet pipe 820 and the water tank 300, thus simplifying the structure of the dishwasher.

[0181] In some possible implementations of the embodiments of this application, reference is made to Figure 8 The breathing apparatus 500 may also be configured with a third water outlet 541, which can be connected to the water inlet channel 521.

[0182] refer to Figure 8 The respirator 500 may also be configured with a third water inlet 542, which is connected to the water inlet channel 521. The third water inlet 542 is further away from the second water inlet 522 than the third water outlet 541, that is, the third water inlet 542 is located downstream of the second water inlet 522.

[0183] refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 The dishwasher may also include a water softener 600, which may be configured with a brine tank, a softening inlet 601, and a softening outlet 602. The brine tank is used to hold softened water brine. The softening inlet 601 and the softening outlet can be connected to the brine tank respectively.

[0184] refer to Figure 6 The softening inlet 601 can also be connected to the third outlet 541.

[0185] refer to Figure 6 The softened water outlet 602 can also be connected to the third water inlet 542.

[0186] Water flowing into the inlet channel 521 from the second inlet 522 enters the softening inlet 601 through the third outlet 541, and then flows into the salt tank. The softening salt in the salt tank softens the water. The softened water then flows from the softened water outlet through the third inlet 542 back into the inlet channel 521, and then flows to the second outlet 531 into the storage chamber 301. In other words, the water flowing to the breather 500 is softened by the water softener 600 before flowing into the water tank 300, and then into the water trough 200, reducing the amount of calcium and magnesium ions in the water deposited on the water tank 300, water trough 200, spray arm, and inner tank 100 to form scale.

[0187] In some possible implementations of the embodiments of this application, reference is made to Figure 8 and Figure 9The breathing apparatus 500 may also be configured with a water outlet channel 533, a fourth water inlet 532, and a fourth water outlet 523. The fourth water inlet 532 and the fourth water outlet 523 may be connected to the water outlet channel 533 respectively.

[0188] The fourth water inlet 532 is also connected to the water storage chamber 301.

[0189] refer to Figure 6 and Figure 9 The fourth outlet 523 is also connected to the trough 201.

[0190] The water in the water tank 300 can flow through the breather 500 and then into the water tank 200. In other words, the water flow path from the water tank 300 to the water tank 200 is: water storage chamber 301 → breather 500 → tank chamber 201.

[0191] Water in the water tank 300 flows into the sink 200 after passing through the breather 500. The water tank 300 and the sink 200 are connected through the breather 500, eliminating the need for additional piping to connect them and simplifying the dishwasher's structure.

[0192] In some possible implementations of the embodiments of this application, reference is made to Figure 7 , Figure 8 and Figure 9 The second water inlet valve 930, used to control the connection or disconnection of the water storage chamber 301 and the tank chamber 201, can be set in the breather 500, which simplifies the piping structure of the dishwasher.

[0193] refer to Figure 8 The second inlet valve 930 can be installed at the outlet channel 533. The second inlet valve 930 can be used to block or release the blockage of the outlet channel 533 to achieve the connection or disconnection of the fourth inlet 532 and the fourth outlet 523.

[0194] When the second inlet valve 930 blocks the outlet channel 533, the fourth inlet 532 and the fourth outlet 523 are disconnected, and the water in the storage chamber 301 cannot flow into the tank 201 through the outlet channel 533.

[0195] When the second inlet valve 930 releases the obstruction to the outlet channel 533, the fourth inlet 532 and the fourth outlet 523 are connected, and the water in the storage chamber 301 can flow into the tank 201 through the outlet channel 533.

[0196] In some possible implementations of the embodiments of this application, reference is made to Figure 6 and Figure 10 The water tank 200 may also have a water inlet 202, which is connected to the tank cavity 201. The water inlet 202 may also be connected to the water storage cavity 301.

[0197] refer to Figure 6 In the implementation of the breathing apparatus 500 having a water outlet channel 533, a fourth water inlet 532 and a fourth water outlet 523, the tank inlet 202 can be connected to the fourth water outlet 523 through the water inlet pipe 840. The water flow path into the tank cavity 201 is: water source → water inlet pipe 820 → breathing apparatus 500 → water softener 600 → water tank 300 → breathing apparatus 500 → water inlet pipe 840 → water tank 200.

[0198] In some possible implementations of the embodiments of this application, reference is made to Figure 6 and Figure 10 The water tank 200 may also have a drain outlet 203, which is connected to the tank cavity 201. The drain outlet 203 may be connected to the valve inlet 911.

[0199] The dishwasher may also include a drain pipe 830, which can be connected between the sink 200 and the drain valve 910.

[0200] In some implementations, the two ends of the outlet pipe 830 can be connected to the drain outlet 203 and the valve inlet 911 respectively, so as to connect the drain outlet 203 and the valve inlet 911.

[0201] In the implementation of the respirator 500 having a drainage channel 511, a first inlet 512 and a first outlet 513, the two ends of the outlet pipe 830 can be connected to the drain outlet 203 and the first inlet 512 respectively, and then connected to the valve inlet 911 through the drainage channel 511 and the first outlet 513.

[0202] In some possible implementations of the embodiments of this application, reference is made to Figure 10 The water tank 200 may also have a water outlet 204, which is connected to the tank cavity 201. The water outlet 204 may also be connected to the spray cavity via a washing heating pump 700 to deliver water from the water tank 200 to the spray arm.

[0203] By constructing a tank inlet 202, a tank drain outlet 203, and a tank outlet 204 on the tank 200, the tank 200 can be more easily connected and assembled directly or indirectly with the water tank 300, the drain valve 910, and the spray arm.

[0204] This application also provides a dishwasher, which differs from the dishwasher described above in that:

[0205] The inlet 811 of the drain pipe 810 is connected to the cavity 201. The heat exchange inlet 401 and heat exchange outlet 402 of the heat recovery component 400 are respectively connected to the cavity, and the heat exchange outlet 402 is closer to the outlet 812 than the heat exchange inlet 401.

[0206] In this embodiment of the application, the dishwasher cancels the drain valve 910 and replaces the drain valve 910 with a first control valve and a second control valve.

[0207] The first control valve is located at one end of the heat recovery unit 400 near the heat exchange inlet 401.

[0208] The second control valve is installed in the drain pipe 810, and the second control valve is located between the pipe inlet 811 and the pipe outlet 812.

[0209] During the main wash cycle, the first control valve opens and the second control valve closes. Water discharged during the main wash cycle flows through the first control valve to the hot water exchange chamber. If the drainage volume is large and the hot water exchange chamber is full but water remains, the water in the hot water exchange chamber flows to the drain pipe 810 and is discharged. After the main wash cycle is complete, the hot water exchange chamber stores the discharged hot water, raising the temperature of the heat recovery unit 400. The heat from the heat recovery unit 400 heats the water tank 300, further increasing the temperature of the water in the water tank 300. Utilizing the water in the water tank 300 as part of the incoming water for washing improves the dishwasher's heat utilization rate of the discharged washing water.

[0210] During the cold bleaching stage, the first control valve is closed and the second control valve is open. The cold water discharged during the cold bleaching stage bypasses the heat recovery unit 400 and is discharged directly from the drain pipe 810 through the second control valve.

[0211] During the hot rinse stage, the first control valve opens and the second control valve closes. The water discharged during the hot rinse stage flows to the hot water exchange chamber through the first control valve. The hot water discharged during the hot rinse stage replaces the hot water discharged during the main wash stage. After the hot rinse stage drainage is completed, the hot water exchange chamber stores the hot water discharged during the hot rinse stage, which raises the temperature of the heat recovery unit 400. The heat from the heat recovery unit 400 can heat the water tank 300, further increasing the temperature of the water in the water tank 300. Utilizing the water in the water tank 300 as part of the inlet water for washing improves the dishwasher's heat utilization rate of the discharged wash water.

[0212] In this embodiment, by controlling the first control valve to open and the second control valve to close, the hot water in the main wash and hot rinse stages flows to the heat recovery unit 400 to exchange heat with the water tank 300, thereby increasing the temperature of the water in the water tank 300. By controlling the first control valve to close and the second control valve to open, the cold water discharged in the cold rinse stage is discharged directly from the drain pipe 810 without passing through the heat recovery unit 400. Since the cold water does not pass through the heat recovery unit 400, the possibility of the water tank 300's temperature dropping due to heat exchange between the cold water and the water tank 300 is reduced, thus improving the dishwasher's heat utilization rate of the discharged hot water.

[0213] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0214] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A dishwasher, characterized in that, include: The inner liner (100) has a washing chamber (110); A water tank (200) is located at the bottom of the inner tank (100). The water tank (200) has a cavity (201) that is connected to the washing chamber (110). A water tank (300) is located outside the inner liner (100). The water tank (300) has a water storage cavity (301) that is connected to the tank cavity (201). The drain pipe (810) has a cavity, a pipe inlet (811) and a pipe outlet (812); the pipe inlet (811) and the pipe outlet (812) are respectively connected to the cavity; A heat recovery component (400), at least partially disposed on the outside of the water tank (300), the heat recovery component (400) having: Replace the hot water chamber; The heat exchange inlet (401) is connected to the heat exchange chamber; The heat exchange outlet (402) is connected to the heat exchange chamber and the pipe cavity respectively; Drain valve (910) has the following features: The valve inlet (911) is connected to the tank cavity (201); The outlet of the first valve (912) is connected to the heat exchange inlet (401); The outlet of the second valve (913) is connected to the inlet of the pipe (811); The drain valve (910) is used to control one of the first valve outlet (912) and the second valve outlet (913) to be connected to the valve inlet (911).

2. The dishwasher according to claim 1, characterized in that, The dishwasher also includes a one-way flow control component (940), which is disposed at one end of the heat recovery component (400) near the heat exchange outlet (402). The one-way flow control component (940) is used to make the water in the heat exchange chamber flow unidirectionally from the heat exchange inlet (401) to the heat exchange outlet (402).

3. The dishwasher according to claim 1, characterized in that, The dishwasher also includes a breather (500), which is configured as follows: Drainage channel (511); The first water inlet (512) is connected to the drainage channel (511) and the trough (201) respectively. The first outlet (513) is connected to the drainage channel (511) and the valve inlet (911) respectively.

4. The dishwasher according to claim 3, characterized in that, The respirator (500) is also constructed with: Water inlet channel (521); The second water inlet (522) is connected to the water inlet channel (521), and the second water inlet (522) is also used to connect to the water source; The second outlet (531) is connected to the water inlet channel (521) and the water storage chamber (301) respectively.

5. The dishwasher according to claim 4, characterized in that, The respirator (500) is also constructed with: The third outlet (541) is connected to the inlet channel (521); The third inlet (542) is connected to the inlet channel (521), and the third inlet (542) is farther away from the second inlet (522) than the third outlet (541); The dishwasher also includes a water softener (600), which is configured as follows: Salt warehouse; The softening inlet (601) is connected to the salt tank and the third outlet (541) respectively; The softened water outlet (602) is connected to the salt tank and the third water inlet (542), respectively.

6. The dishwasher according to claim 4, characterized in that, The respirator (500) is also constructed with: Water outlet channel (533); The fourth water inlet (532) is connected to the water outlet channel (533) and the water storage chamber (301) respectively; The fourth outlet (523) is connected to the water outlet channel (533) and the trough (201) respectively.

7. The dishwasher according to claim 6, characterized in that, The dishwasher also includes a second water inlet valve (930), which is disposed on the breather (500) and is used to control the connection or disconnection of the fourth water inlet (532) and the fourth water outlet (523).

8. The dishwasher according to any one of claims 4-7, characterized in that, The dishwasher also includes: Water inlet pipe (820), one end of which is connected to the second water inlet (522), and the other end of which is used to connect to the water source; The first inlet valve (920) is located on the inlet pipe (820).

9. The dishwasher according to any one of claims 1-7, characterized in that, The dishwasher also includes a spray arm disposed in the washing chamber (110), and the spray arm has a spray chamber; The sink (200) also features: The tank inlet (202) is connected to the tank cavity (201) and the water storage cavity (301) respectively; The drain outlet (203) is connected to the tank cavity (201) and the valve inlet (911) respectively; The water outlet (204) is connected to the tank cavity (201) and the spray cavity, respectively.

10. A dishwasher, characterized in that, include: The inner liner (100) has a washing chamber (110); A water tank (200) is located at the bottom of the inner tank (100). The water tank (200) has a cavity (201) that is connected to the washing chamber (110). A water tank (300) is located outside the inner liner (100). The water tank (300) has a water storage cavity (301) that is connected to the tank cavity (201). The drain pipe (810) has a pipe cavity, a pipe inlet (811) and a pipe outlet (812); the pipe inlet (811) is connected to the trough cavity (201); A heat recovery component (400), at least partially disposed on the outside of the water tank (300), the heat recovery component (400) having: Replace the hot water chamber; The heat exchange inlet (401) is connected to the heat exchange chamber and the pipe cavity respectively; The heat exchange outlet (402) is connected to the heat exchange chamber and the pipe cavity respectively, and the heat exchange outlet (402) is closer to the pipe outlet (812) than the heat exchange inlet (401); The first control valve is located at one end of the heat recovery unit (400) near the heat exchange inlet (401); The second control valve is installed on the drain pipe (810), and the second control valve is located between the pipe inlet (811) and the pipe outlet (812).

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