CN116687300A - Dishwasher and control method thereof - Google Patents

Abstract

Embodiments of the present application provide a dishwasher and a control method thereof, which relate to the technical field of dishwashers. The dishwasher includes: an inner container; a water tank, a plane filter screen is provided at the connection between the water tank and the inner container; a washing pump; Sewage filter located at the circulation outlet; diverter pump; drainage pump; turbidity sensor, used to detect the turbidity value of water; controller, configured to: control the action of the washing pump, pump the water in the sink into the inner tank to wash tableware ; Obtain the turbidity value of the water; when the turbidity value is less than the turbidity threshold, control the shunt pump to pump the water in the tank into the sewage storage chamber, and make the water in the sewage storage chamber pass through the circulation outlet and filter through the sewage filter Then enter the water tank; when the turbidity value is greater than or equal to the turbidity threshold, control the washing pump to stop; control the operation of the shunt pump to close the circulation inlet; control the operation of the drainage pump to discharge the water in the dirty chamber to the outside.

Description

Dishwasher and control method thereof

technical field

The present application relates to the technical field of dishwashers, in particular to a dishwasher and a control method thereof.

Background technique

Dishwashers are equipment for automatically cleaning bowls, chopsticks, plates, plates, knives, forks and other tableware. At present, fully automatic dishwashers on the market use flat filters to block and filter the washing water and then recycle them. However, During the washing process of the dishwasher, tableware with different degrees of dirt will be encountered, resulting in different levels of turbidity in the washing water. If the heavily turbid washing water is recycled, the tableware will not be washed clean, which will affect the user experience.

Contents of the invention

Embodiments of the present application provide a dishwasher and a control method thereof, which are used to improve the cleaning effect of the dishwasher on tableware.

In order to achieve the above object, the application adopts the following technical solutions:

In the first aspect, the embodiment of the present application provides a dishwasher, which includes:

liner;

The water tank, the water tank is connected with the inner tank, and the connection between the water tank and the inner tank is provided with a flat filter;

The washing pump is connected with both the sink and the inner tank;

The sewage storage room has a sewage storage chamber and a circulation inlet, a circulation outlet and a sewage outlet connected to the sewage storage chamber, the circulation outlet is connected to the water tank, and the sewage storage room is provided with a sewage filter at the circulation outlet;

The shunt pump is connected with the circulation inlet of the water tank and the dirt storage chamber, and the shunt pump includes the first working state and the second working state;

Drainage pump, connecting the sewage outlet and the outside world;

The turbidity sensor is used to detect the turbidity value of the water in the storage chamber;

A controller, connected to the wash pump, diverter pump, drain pump and turbidity sensor, the controller is configured to:

Control the action of the washing pump, pump the water in the sink into the inner tank to wash the tableware;

Obtain the turbidity value of the water in the storage chamber;

When the turbidity value is less than the turbidity threshold value, control the shunt pump to run in the first working state, pump the water in the water tank into the sewage storage chamber through the circulation inlet, and make the water in the sewage storage chamber pass through the circulation outlet and pass through After being filtered by the sewage filter, it enters the sink;

When the turbidity value is greater than or equal to the turbidity threshold value; control the washing pump to stop; control the shunt pump to run in the second working state, so that the circulation inlet is closed; control the action of the drainage pump, so that the circulation outlet is closed, and the sewage in the storage chamber is closed. The water is drained to the outside.

The embodiment of the present application brings at least the following beneficial effects: the embodiment of the present application provides a dishwasher with a dirt storage chamber. During the process of washing dishes in the dishwasher, the turbidity value of the water in the dirt storage chamber is When the turbidity value is less than the turbidity threshold value, the water is filtered through the sewage filter and then enters the sink for recycling, while the filth in the water cannot pass through the sewage filter and is left in the sewage storage chamber; when the turbidity value is greater than or When the turbidity threshold is equal to the turbidity threshold, the water containing the filth in the dirt storage chamber is discharged to the outside, so that the turbidity value of the recycled water in the dishwasher is always less than the turbidity threshold, which can improve the dishwasher’s protection against tableware. cleaning effect.

In some embodiments, the dishwasher further includes: a first water flow backstop tongue, which is rotatably connected to the dirt storage chamber, the first water flow backstop tongue is located in the dirt storage chamber, and is arranged at the circulation inlet; the second water flow The backstop tongue is rotatably connected with the sewage chamber, and the second water flow backstop tongue is located in the water tank and at the circulation outlet; wherein, when the diverter pump is running in the first working state, the first water flow backstop tongue The flap opens the circulation inlet under the impact of the water flow output by the shunt pump, and the second water flow backstop tongue opens the circulation outlet under the action of the water pressure in the dirt storage chamber; when the shunt pump is running in the second working state, it forms at the circulation inlet. Negative pressure, the first water flow backstop tongue closes the circulation inlet under the action of negative pressure at the circulation inlet; when the drainage pump operates, a negative pressure is formed in the sewage storage chamber, and the second water flow backstop tongue is in the sewage storage chamber Close the circulation outlet under negative pressure.

In some embodiments, the water tank includes a first cavity and a second cavity, and a fine filter is arranged inside the water tank, and the fine filter is connected with the water tank and separates the first cavity and the second cavity; the first cavity and the second cavity Both the inner tank and the washing pump are connected, the second cavity is connected with the shunt pump, and the second water flow check tongue is arranged in the first cavity.

In some embodiments, the washing process of the dishwasher includes a pre-washing stage, a main washing stage, a thermal rinsing stage, and a drying stage that run sequentially; the controller executes the acquisition of the turbidity value of the water in the dirt storage chamber, and is specifically configured as: The target stage in the washing process of the dishwasher is obtained, and the target stage includes a pre-washing stage and a main washing stage; the turbidity value of the water in the dirt storage chamber is obtained at the target stage in the washing process of the dishwasher.

In some embodiments, the washing process of the dishwasher further includes a transition phase, the transition phase is after the main wash phase, and the transition phase is before the hot rinse phase; the target phase further includes the transition phase.

In some embodiments, the dishwasher also includes a water inlet valve connected to the controller and a water level detector, the water inlet valve is connected to the inner container, and the water level detector is used to detect the water level of the water in the inner container; The configuration is as follows: obtain the water level; when the water level is less than the first water level threshold, control the water inlet valve to open; when the water level is greater than or equal to the first water level threshold, control the water inlet valve to close.

In some embodiments, the controller is further configured to: after the end of the current target stage, control the washing pump and the diverter pump to stop running, and control the drainage pump to act; Under normal circumstances, a negative pressure is formed in the dirt storage chamber, the second water flow backstop tongue closes the circulation outlet under the negative pressure in the dirt storage chamber, and the first water flow backstop tongue opens the closed loop under the negative pressure in the dirt storage chamber. The above-mentioned circular import.

In the second aspect, the embodiment of the present application provides a control method of a dishwasher, the method includes: controlling the operation of the washing pump, pumping the water in the sink into the inner tank to wash the tableware; obtaining the turbidity value of the water in the dirt storage chamber; When the turbidity value is less than the turbidity threshold, control the shunt pump to operate in the first working state, pump the water in the tank into the sewage storage chamber through the circulation inlet, and make the water in the sewage storage chamber pass through the circulation outlet and pass through the sewage After being filtered by the filter, it enters the water tank; when the turbidity value is greater than or equal to the turbidity threshold, the washing pump is controlled to stop; the shunt pump is controlled to run in the second working state to close the circulation inlet; the drainage pump is controlled to close the circulation outlet , discharge the water in the dirt storage chamber to the outside.

In some embodiments, obtaining the turbidity value of the water in the dirt storage chamber includes: obtaining the target stage in the washing process of the dishwasher, the target stage includes a pre-wash stage and a main wash stage; The target stage in the process obtains the turbidity value of the water in the storage chamber.

In some embodiments, the control method further includes: obtaining the water level; when the water level is less than the first water level threshold, controlling the water inlet valve to open; when the water level is greater than or equal to the first water level threshold, controlling The water inlet valve is closed.

In some embodiments, the control method further includes: after the current target stage ends, controlling the washing pump and the diverter pump to stop running, and controlling the drainage pump to operate; wherein, when the washing pump and the diverter pump stop operating and the drain pump operates, Negative pressure is formed in the dirt storage chamber, the second water flow backstop tongue closes the circulation outlet under the negative pressure in the dirt storage chamber, and the first water flow backstop tongue opens the circulation inlet under the negative pressure in the dirt storage chamber .

In a third aspect, the embodiment of the present application provides a controller, including: one or more processors; one or more memories; wherein, one or more memories are used to store computer program codes, and the computer program codes include computer instructions, When one or more processors execute computer instructions, the controller executes any control method provided in the second aspect and the embodiments.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium includes computer instructions, and when the computer instructions are controlled on the computer, the computer executes any one of the second aspect and the embodiment. Control Method.

In the fifth aspect, the embodiment of the present invention provides a computer program product, which can be directly loaded into the memory and contains software codes. After the computer program product is loaded and executed by a computer, it can realize the second aspect and possible The implementation provided in the second aspect and any one of the control methods provided in the embodiments.

It should be noted that all or part of the above computer instructions may be stored on a computer-readable storage medium. Wherein, the computer-readable storage medium may be packaged together with the processor of the controller, or may be packaged separately with the processor of the controller, which is not limited in this application.

For the beneficial effects described in the second aspect to the fifth aspect of the present application, reference may be made to the beneficial effect analysis of the first aspect, which will not be repeated here.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solution of the present invention, and constitute a part of the description, and are used together with the embodiments of the application to explain the technical solution of the present invention, and do not constitute a limitation to the technical solution of the present invention.

Fig. 1 is a schematic structural view of a dishwasher provided by the present application;

Fig. 2 is a schematic structural diagram of another dishwasher provided in the embodiment of the present application;

Fig. 3 is a schematic structural diagram of another dishwasher provided in the embodiment of the present application;

Fig. 4 is a schematic structural diagram of another dishwasher provided in the embodiment of the present application;

Fig. 5 is a hardware configuration block diagram of a dishwasher provided in an embodiment of the present application;

Fig. 6 is a schematic diagram of a washing process of a dishwasher provided in an embodiment of the present application;

Fig. 7 is a schematic diagram of the washing process of another dishwasher provided in the embodiment of the present application;

Fig. 8 is a schematic flowchart of a control method for a dishwasher provided in an embodiment of the present application;

Fig. 9 is a schematic flowchart of another dishwasher control method provided by the embodiment of the present application;

Fig. 10 is a schematic flowchart of another dishwasher control method provided in the embodiment of the present application;

Fig. 11 is a schematic flowchart of another dishwasher control method provided by the embodiment of the present application;

Fig. 12 is a schematic flowchart of another dishwasher control method provided in the embodiment of the present application;

Fig. 13 is a schematic flowchart of another dishwasher control method provided in the embodiment of the present application;

Fig. 14 is a schematic flowchart of another dishwasher control method provided by the embodiment of the present application;

Fig. 15 is a schematic flowchart of another dishwasher control method provided in the embodiment of the present application;

FIG. 16 is a schematic diagram of a hardware architecture of an electronic device provided by an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

The terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise clearly stipulated and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral ground connection. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations. In addition, when describing pipelines, "connected" and "connected" used in this application have the meaning of conducting. The specific meaning needs to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

Fig. 1 is a structural schematic diagram of a dishwasher provided in the embodiment of the present application. As shown in Fig. 1, the dishwasher 100 includes: a casing 11, an inner container 12, a spray arm 13, a shelf 14, a base 15 and a door body (not shown in Figure 1).

Wherein, the shell 11 is arranged outside the inner tank 12 for protecting the inner tank 12 .

The spray arm 13 is rotatably arranged inside the inner container 12, and can clean the tableware on the shelf 14 by spraying water. The spray arm 13 is a hollow shell on which is opened a spray hole (not shown in FIG. 1 ) for spraying water to the tableware of the rack 14 . It should be understood that the spray arm 13 may include an upper spray arm, a middle spray arm and a lower spray arm.

In some embodiments, the spray holes on the spray arm 13 are arranged obliquely, and the spray arm can be driven to rotate by spraying water.

The shelf 14 is arranged inside the inner container 12, and the shelf 14 is used for holding tableware such as bowls, plates or cups. As shown in FIG. 1 , the shelf 14 may include an upper shelf 141 and a lower shelf 142 .

The base 15 is used to supply water to the spray arm 13, so that the spray arm 13 can clean the tableware on the shelf 14 by spraying water.

In some embodiments, the base 15 may include a sink 151 , a washing pump 152 , a sewage chamber 153 , a diverter pump 154 , a drain pump 155 , a turbidity sensor 156 and a flat filter 157 .

The water tank 151 is used to hold water, the washing pump 152 is used to drive the water in the water tank to the spray arm 13, the dirt storage chamber 153 is used to filter the water and accumulate dirt, and the diverter pump 154 is used to pump water into the dirt storage chamber , the drain pump 155 is used to discharge the residual water after washing, that is, the water sprayed by the spray arm, which can be discharged from the dishwasher through the drain pump, and the turbidity sensor 156 is used to detect the turbidity value of the water. The connecting part of 12 is provided with plane filter screen 157, and the water in the liner 12 enters tank 151 after plane filter screen 157, and plane filter screen 157 can filter out part dirt, for example, plane filter screen 157 can filter Chinese cabbage leaf out.

In some embodiments, the dirt storage chamber 153 has a dirt storage chamber 1531 and a circulation inlet 1532, a circulation outlet 1533 and a sewage outlet (not shown in FIG. The sewage chamber 153 is provided with a sewage filter 1534 located at the circulation outlet 1533 .

The dirt storage chamber 1531 is used to accumulate filth, the circulation inlet 1532 is the inlet for water to enter the dirt storage chamber, the circulation outlet 1533 is the outlet for the filtered water in the dirt storage chamber 1531 to flow into the water tank 151, and the sewage filter 1534 is used to clean the dirt. The water in the cavity 1531 is filtered to accumulate the dirt in the dirt storage cavity 1531, and the sewage outlet is the outlet for the water containing the dirt in the dirt storage cavity 1531 to discharge to the outside.

In some embodiments, the shunt pump 154 can include a first working state and a second working state. When the shunt pump 154 operates in the first working state, the water in the water tank 151 can be pumped into the dirt storage chamber 1531 through the circulation inlet 1532 , and the water in the dirt storage chamber 1531 can pass through the circulation outlet 1533 and enter the water tank 151 after being filtered by the sewage filter 1534; when the shunt pump 154 operates in the second working state, the circulation inlet 1532 can be closed.

In some embodiments, as shown in FIG. 2 , the dishwasher 100 further includes a first water flow check tongue 15311 located in the dirt storage chamber 1531 and a second water flow check tongue 1511 located in the sink 151 .

Wherein, the first water flow backstop tongue piece 15311 is rotatably connected with the dirt storage chamber 153 and set at the circulation inlet 1532 , and the second water flow backstop tongue piece 1511 is rotatably connected with the dirt storage chamber 153 and set at the circulation outlet 1533 .

When the drainage pump 155 is stopped and the diverter pump 154 is running in the first working state, the first water flow backstop tongue 15311 opens the circulation inlet 1532 under the impact of the water flow output by the diverter pump 154, and the second water flow backstop tongue 1511 exists. The circulation outlet 1533 is opened under the action of water pressure in the dirty chamber 1531 . When the drain pump 155 operates and the diverter pump 154 operates in the second working state, a negative pressure is formed at the circulation inlet 1532, and the first water flow check tongue 15311 closes the circulation inlet 1532 under the action of the negative pressure at the circulation inlet 1532. A negative pressure is formed in the dirt storage chamber 1531 , and the second water flow check tongue 1511 closes the circulation outlet 1533 under the action of the negative pressure in the dirt storage chamber 1531 .

In some embodiments, as shown in FIG. 3 , the sink 151 of the dishwasher 100 may include a first cavity 1512 and a second cavity 1513 , and a fine filter 1514 is disposed inside the sink 151 . The fine filter screen 1514 is connected with the water tank 151 and separates the first cavity 1512 and the second cavity 1513. The first cavity 1512 communicates with the inner tank 12 and the washing pump 152, the second cavity 1513 communicates with the shunt pump 154, and the second cavity 1513 communicates with the shunt pump 154. The two water flow check tongues 1511 are disposed in the first cavity 1512 .

In some embodiments, as shown in FIG. 4 , the base 15 of the dishwasher 100 may further include a water inlet valve 158 and a water level detector 159, the water inlet valve 158 is connected to the inner container 12, and the water level detector 159 is used to detect The water level height of water in the courage 12.

In some embodiments, the water level detector 159 may be a pressure sensor, which detects the pressure value of the water in the inner tank 12 , and determines the water level of the water in the inner tank 12 according to the pressure value of the water in the inner tank 12 .

In some embodiments, when the water level detector 159 detects that the water level is less than the first water level threshold, the water inlet valve 158 can be controlled to open; when the water level detector 159 detects that the water level is greater than or equal to the first water level threshold In the case that the water inlet valve 158 can be controlled to be closed.

Although not shown in FIGS. 1 to 4 , the dishwasher can also include a controller 16 and a storage device 17 connected thereto. The controller 16 is the control center of the dishwasher 100 and uses various interfaces and lines to connect the dishwashing machine. Various parts of the dishwasher execute various washing procedures of the dishwasher by running or executing programs stored in the memory 17 and calling data stored in the memory 17. In some embodiments, controller 16 may include one or more processing units.

In some embodiments, the controller 16 refers to a device that can generate an operation control signal to instruct the washing pump 152 to execute the control instruction according to the instruction operation code and the timing signal. Exemplarily, the controller 16 may be a central processing unit (central processing unit, CPU), a general-purpose processor, a network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microprocessor A controller, a programmable logic device (programmable logic device, PLD), or any combination thereof. The controller 16 may also be other devices with processing functions, such as circuits, devices or software modules, which are not limited in this embodiment of the present application.

In some embodiments, the memory 17 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application program required by a function (such as voice prompt function, information display function, etc.); The zone may store data created according to when the dishwasher 100 is used. In addition, the memory 17 may include a high-speed random access memory, and may also include a non-volatile memory, such as a magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

Fig. 5 is a hardware configuration block diagram of a dishwasher 100 according to an exemplary embodiment of the present application. As shown in FIG. 5 , the dishwasher 100 may further include one or more of the following: a dispenser 18 , a display 19 , a heater 20 , a fan assembly 21 , a temperature sensor 22 , a voice prompt device 23 and a circulation pump 24 .

In some embodiments, a dispenser 18 is connected to the controller 16 for dispensing dishwashing powder or rinse aid into the dishwasher.

In some embodiments, the display 19 is connected to the controller 16, and the display 19 may be a liquid crystal display or an organic light-emitting diode (OLED) display. The specific type, size and resolution of the display 19 are not limited. The display 19 can be used to display the control panel of the dishwasher. The dishwasher can feed back the current working status of the dishwasher through the display 19, such as running time, washing mode and washing stage, and the like.

In some embodiments, the heater 20 is connected to the controller 16, and the heater 20 is used to heat the washing water to improve the washing effect.

In some embodiments, the fan assembly 21 is connected to the controller 16, and the fan assembly 21 is used to dry the surface of the tableware after the tableware is washed, so as to improve user experience.

In some embodiments, the temperature sensor 22 is connected with the controller 16 for detecting the temperature value of the water in the water tank 151 and sending the detected temperature value of the water in the water tank 151 to the controller 16 .

In some embodiments, the voice prompt device 23 is connected to the controller 16 and can be used to issue a voice prompt after the tableware is washed, wherein the content of the voice prompt can be preset when the dishwasher 100 leaves the factory, or can be User-defined, for example, the content of the voice prompt may be: "The tableware has been washed and disinfected".

In some embodiments, a circulation pump 24 is connected to the controller 16 for driving water in the tank to the spray arm 13 .

In some embodiments, the circulation pump 24 and the heater 20 together constitute the washing pump 152 , that is, the washing pump 152 includes the circulation pump 24 and the heater 20 .

It can be understood that the structure shown in the embodiment of the present invention does not constitute a specific limitation on the dishwasher. In other embodiments of the present application, the smart cooker and the smart cooker may include more or less components than those shown in the illustrations, or some components may be combined, or some components may be split, or different component arrangements may be made. The illustrated components can be realized in hardware, software or a combination of software and hardware.

The embodiments provided by the present application will be described in detail below in combination with the accompanying drawings.

It can be understood that when the user needs to use the dishwasher to wash the tableware, the user can select the washing mode of the dishwasher on the display according to the type of tableware to be cleaned. For example, the types of tableware to be cleaned include large bowls, small bowls, For cups and plates, you can choose the mixed washing mode, and the controller executes the corresponding washing program according to the washing mode selected by the user. As shown in FIG. 6 , the washing process 60 of the washing program may include a pre-washing stage 61 , a main washing stage 62 , a hot-rinsing stage 63 and a drying stage 64 which are operated in sequence.

Among them, the pre-washing stage 61 mainly uses the washing pump to spray water through the spray arm to rinse the surface of the tableware; the main washing stage 62 mainly uses the heater to heat the water into warm (hot) water, for example, the water can be heated to 40 ℃, then use the washing pump to spray 40 ℃ water through the spray arm to rinse the tableware strongly, and add detergent to remove dirt and greasy; the hot rinsing stage 63 mainly uses the heater to heat the water to warm (hot) Water, for example, can be heated to 70°C, and then use the washing pump to spray the 70°C water through the spray arm to clean the tableware, so as to achieve the effect of cleaning and disinfection; the drying stage 64 mainly uses the heater and/or fan assembly , to achieve the effect of drying the surface of the tableware.

In some embodiments, the prewashing stage 61, the main washing stage 62, and the hot rinsing stage 63 can be washed by using multiple water inlets. The water in one stage is recycled in the corresponding stage.

It can be seen that in the pre-washing stage 61 and the main washing stage 62, most or even all the dirt on the tableware will be stripped, so that the water turbidity value in the pre-washing stage 61 and the main washing stage 62 will increase, so the pre-washing Phase 61 and main wash phase 62 serve as target phases. That is to say, in the pre-washing stage 61 and the main washing stage 62, the water in the water tank will be filtered through the dirt storage chamber, and the water containing high concentration of pollutants will be discharged, so as to reduce the turbidity value of the water in the water tank, and then can Improve the cleaning effect of dishwashers on tableware.

In some embodiments, as shown in FIG. 7 , the washing process 60 may further include a transition stage 62 a after the main wash stage 62 and before the hot rinse stage 63 .

It is understandable that the dirt on the surface of some tableware is oxidized and dried due to long-term exposure to the air, making it difficult to peel off from the surface of the tableware. Conventional washing methods may not be able to clean such tableware. In order to improve dishwashing To improve the washing effect of the machine on tableware, a transition stage 62a can be added after the main wash stage 62 and before the hot rinse stage 63. If the strong washing mode is selected, the washing process of the washing program corresponding to the strong washing mode may include a transition stage 62a.

Wherein, the transition stage 62a is mainly to use the washing pump to spray water out through the spray arm to wash the surface of the tableware, so that the dirt on the surface of the tableware is peeled off.

In some embodiments, the target phase also includes a transition phase 62a.

Fig. 8 is a schematic flowchart of a dishwasher control method provided in an embodiment of the present application, the method is applied to a dishwasher controller, and the method includes the following steps:

S101. Execute the water-intake action of the dishwasher.

In some embodiments, when the dishwasher starts to wash the tableware, the water inlet valve can be controlled to open, and the water level in the inner tank can be monitored in real time. If the water level in the inner tank is greater than or equal to the first water level threshold , control the water inlet valve to close, and complete the water inlet action of the dishwasher.

S102. Control the action of the washing pump to pump the water in the water tank into the inner tank to wash the tableware.

In some embodiments, by controlling the action of the washing pump, the water in the sink can be pumped into the inner tank, sprayed out through the spray arm, and scour the surface of the tableware to achieve the effect of washing the tableware.

In some embodiments, before controlling the operation of the washing pump, the dispenser may be controlled to dispense dishwashing powder.

S103. Control the shunt pump to run in the first working state.

In some embodiments, controlling the shunt pump to operate in the first working state can pump the water in the water tank into the sewage storage chamber through the circulation inlet, and make the water in the sewage storage chamber pass through the circulation outlet and be filtered by the sewage filter before entering the water tank .

Wherein, the first working state may be a state of running in a clockwise direction, or a state of running in a counterclockwise direction.

S104. Obtain the turbidity value of the water in the dirt storage chamber.

In some embodiments, the dirt on the surface of the tableware is peeled off and enters the dirt storage chamber with the water flow and accumulates in the dirt storage cavity, and the water in the dirt storage cavity flows into the sink after being filtered by the sewage filter, and the water in the dirt storage cavity is obtained The turbidity value can determine the concentration of dirt in the storage chamber.

In some embodiments, as shown in FIG. 9, step S104 may be specifically implemented as the following steps:

S1041. Obtain the target stage in the washing process of the dishwasher.

Wherein, the target stage includes a prewash stage and a main wash stage.

In some embodiments, the turbidity value of the water in the dirt storage chamber is only obtained during the execution of the target stage, and if the current stage performed by the dishwasher is a non-target stage, it means that the turbidity value of the water in the dirt storage chamber does not need to be acquired.

It should be understood that the vast majority or even all of the dirt on the surface of the tableware is peeled off at the target stage, while there is no dirt or only very little dirt on the surface of the tableware at the non-target stage, usually it will not make the dirt in the dirt chamber The turbidity value of the water exceeds the turbidity threshold.

S1042. Obtain the turbidity value of the water in the dirt storage chamber at a target stage in the washing process of the dishwasher.

In some embodiments, by obtaining the turbidity value of the water in the dirty chamber at the target stage during the washing process of the dishwasher, the concentration of the filth in the water in the dirty chamber can be determined. When the turbidity in the water in the dirty chamber When the concentration of the detergent is too high, it will affect the washing effect of the dishwasher on the tableware.

It should be understood that the turbidity value of the water in the dirty chamber is directly proportional to the concentration of the pollutants in the water in the dirty chamber, that is, the higher the turbidity value of the water in the dirty chamber, the higher the concentration of the pollutants in the water in the dirty chamber. The higher the concentration, and vice versa.

S105. When the turbidity value is greater than or equal to the turbidity threshold, control the washing pump to stop, control the diverter pump to run in the second working state, and control the drainage pump to operate.

Wherein, the second working state can be the state of running in the clockwise direction, or the state of running in the counterclockwise direction. In the state of running in the clockwise direction, when the first working state is the state of running in the counterclockwise direction, the second working state is the state of running in the clockwise direction.

In some embodiments, controlling the stop of the washing pump can stop the spray arm from spraying water on the surface of the tableware, controlling the diverter pump to operate in the second working state can close the circulation inlet, controlling the operation of the drainage pump can close the circulation outlet, and save The water in the dirty cavity is discharged to the outside, and the filth in the dirty cavity is also discharged to the outside with the water flow.

Based on the embodiment shown in Figure 8, at least the following beneficial effects are brought: a control method for a dishwasher provided in the embodiment of the present application, by peeling off the dirt from the surface of the tableware at the target stage, the dirt follows the water into the dirt When the water in the storage chamber passes through the sewage filter, it is accumulated in the storage chamber, and when the turbidity value of the water in the storage chamber is greater than or equal to the turbidity threshold value, the water in the storage chamber is discharged To the outside world, the dirt in the sewage storage chamber is also discharged to the outside with the water flow, and the water in the sewage storage chamber is filtered by the sewage filter and then flows into the sink for recycling. The water filtered by the sewage filter reduces the turbidity value, which can Improve the cleaning effect of the dishwasher for tableware.

Fig. 10 is a schematic flowchart of another dishwasher control method provided in the embodiment of the present application, the method is applied to a dishwasher controller, and the method includes the following steps:

S201. Obtain the height of the water level.

It should be understood that when there is not enough water in the dishwasher, it is difficult to wash the tableware, and the amount of water in the dishwasher can be determined by obtaining the water level in the inner tank of the dishwasher.

Wherein, the water level in the dishwasher liner is directly proportional to the water volume in the dishwasher, that is, the higher the water level in the dishwasher liner, the more water in the dishwasher, and vice versa.

S202. When the water level is lower than the first water level threshold, control the water inlet valve to open.

In some embodiments, when it is determined that the water level is lower than the first water level threshold, it means that the amount of water in the dishwasher has decreased, which may affect the washing effect of the dishwasher on the tableware, and the opening of the water inlet valve can be controlled so that The amount of water in the dishwasher increases.

Wherein, the first water level height threshold may be preset when the dishwasher leaves the factory.

S203. When the water level is greater than or equal to the first water level threshold, control the water inlet valve to close.

In some embodiments, when it is determined that the water level is greater than or equal to the first water level threshold, it means that the amount of water in the dishwasher is sufficient to wash the tableware, and the water inlet valve can be controlled to close to stop the dishwasher from entering water.

For the description about the first water height threshold, reference may be made to the relevant description in the above step S202, which will not be repeated here.

Based on the embodiment shown in FIG. 10 , at least the following beneficial effects are brought: a control method for a dishwasher provided in the embodiment of the present application, by monitoring the water level in the inner tank of the dishwasher in real time, it is determined Whether the amount of water in the dishwasher is enough to wash the tableware, and when the water level in the inner tank of the dishwasher is detected to drop, the water intake action of the dishwasher will be executed in time to maintain a sufficient amount of water in the dishwasher and improve the dishwasher’s performance for the tableware. cleaning effect.

In some embodiments, as shown in FIG. 11 , after step S203, the following steps may also be included:

S204. After the current target stage is over, control the washing pump and the diverter pump to stop running, and control the drainage pump to operate.

Wherein, when the washing pump and the shunt pump stop running, and the drainage pump operates, a negative pressure is formed in the dirt storage chamber, and the second water flow backstop tongue closes the circulation outlet under the negative pressure in the dirt storage chamber. The water flow backstop tongue opens the circulation inlet under the action of negative pressure in the dirt storage chamber.

In some embodiments, the washing pump is controlled to stop running, that is, the dishwasher stops washing the tableware, and the second water flow backstop tongue closes the circulation outlet under the negative pressure in the dirt storage chamber, so that the water in the dirt storage chamber It will not enter the sink, the first water flow check tongue opens the circulation inlet under the action of negative pressure in the dirt storage chamber, so that the water in the sink can enter into the dirt storage chamber, and the action of controlling the drainage pump can drain the water in the dirt storage chamber Water drains to the outside.

In some embodiments, steps S201 to S204 may be performed after step S105.

Based on the embodiment shown in FIG. 11 , at least the following beneficial effects are brought about: the control method of a dishwasher provided by the embodiment of the present application avoids the current target by discharging the water in the tank to the outside after the current target stage ends. The water in one stage is used for washing in the next stage, causing secondary pollution, which affects the washing effect of the dishwasher on tableware. Dishwasher washing effect on tableware.

A method for controlling a dishwasher provided in the present application will be described below with reference to a specific example. Fig. 12 is a schematic flowchart of a method for controlling the power washing mode of a dishwasher provided in an embodiment of the present application. The method is applied to the controller of the dishwasher, and the controller is a computer board. As shown in Fig. The washing process corresponding to the mode includes a pre-wash stage, a main wash stage, a transition stage, a hot rinse stage and a drying stage.

S301, a pre-washing stage.

In some embodiments, the pre-washing stage mainly uses the washing pump to spray water through the spray arm to wash the surface of the tableware to achieve the effect of washing the tableware. As shown in Figure 13, the pre-washing stage can be specifically implemented as the following steps:

S301-1. Control the drainage pump to operate 3 times to discharge the residual water in the dirt storage chamber and/or the inner container.

It can be understood that the drainage pump is a kind of centrifugal pump. In daily use, it is inevitable for the drainage pump to have air binding effect, that is to say, it is inevitable that the air enters the drainage pump. If there is air in the drainage pump Because the air density is far lower than the density of the conveyed water, the centrifugal force generated by the drainage pump is small, so the low pressure formed in the central area of the impeller of the drainage pump is not enough to suck the water into the pump, so that the sewage storage chamber and/or internal The gall has residual water.

Therefore, before each time the dishwasher washes the tableware, the computer board can control the action of the drain pump 3 times to discharge the residual water in the dirt storage chamber and/or inner container, that is to say, the computer board can control the action of the drain pump during the pre-washing stage Drain the residual water in the dirt storage chamber and/or inner tank 3 times to avoid the residual water from being used for washing tableware and reduce secondary pollution.

S301-2. Add pre-washing dishwashing powder.

In some embodiments, the computer board can control the dispenser to inject pre-washing dishwashing powder during the pre-washing stage. When the spray arm sprays water to wash the surface of the tableware, it helps to peel off the dirt on the surface of the tableware, thereby improving the performance of the dishwasher. For the cleaning effect of tableware.

S301-3. Execute the action of filling the dishwasher with water.

In some embodiments, the computer board can control the opening of the water inlet valve to allow the dishwasher to enter water, and monitor the water level in the dishwasher in real time, and control the water inlet when the water level is greater than or equal to the first water level threshold. The valve is closed to complete the water inlet action of the dishwasher.

S301-4. Control the action of the washing pump, and at the same time control the diverter pump to run in the first working state.

It should be understood that the washing pump includes a circulation pump and a heater, and the computer board can control the operation of the circulation pump in the pre-washing stage to pump the water in the tank into the inner tank to drive to the spray arm, so that the spray arm can spray water to wash the surface of the tableware, The water in the pre-washing stage may be cold water, therefore, the heater may not work during the pre-washing stage.

In some embodiments, the wash pump may also be referred to as a main pump.

In some embodiments, the computer board controls the shunt pump to operate in the first working state to pump the water in the tank into the sewage storage chamber through the circulation inlet, and make the water in the sewage storage chamber pass through the circulation outlet and filter through the sewage filter. into the sink, and the dirt filtered out by the sewage filter is accumulated in the dirt storage chamber.

In some embodiments, the contaminants may be pollutant particles.

S301-5. Obtain the turbidity value of the water in the dirt storage chamber.

In some embodiments, by obtaining the turbidity value of the water in the dirt storage chamber, the concentration of the dirt in the water in the dirt storage chamber can be determined. When the concentration of the dirt in the water in the dirt storage chamber is too high, it will affect the The washing effect of the bowl machine on the tableware.

It should be understood that the turbidity value of the water in the dirty chamber is directly proportional to the concentration of the pollutants in the water in the dirty chamber, that is, the higher the turbidity value of the water in the dirty chamber, the higher the concentration of the pollutants in the water in the dirty chamber. The higher the concentration, and vice versa.

Exemplarily, the turbidity value of the water in the dirt storage chamber may be acquired by a turbidity sensor and sent to the computer board.

S301-6. When the turbidity value is greater than or equal to the turbidity threshold, control the washing pump to stop, control the shunt pump to run in the second working state, and control the drainage pump to operate.

In some embodiments, when the turbidity value is greater than or equal to the turbidity threshold value, it means that the concentration of dirt in the dirt storage chamber is too high, which may affect the washing effect of the dishwasher on the tableware, so the washing can be suspended, and the The water with too high concentration of pollutants is discharged to the outside and then washed. For example, the computer board controls the washing pump to stop to stop the spray arm from spraying water on the surface of the tableware, and controls the shunt pump to run in the second working state to close the circulation inlet. Controlling the action of the drainage pump can close the circulation outlet and discharge the water in the dirt storage chamber to the outside, and the filth in the dirt storage chamber is also discharged to the outside with the water flow.

S301-7. When the turbidity value is less than the turbidity threshold, control the washing pump to operate, control the shunt pump to operate in the first working state, and control the drainage pump to stop.

For the description about controlling the operation of the washing pump and controlling the shunt pump to operate in the first working state, please refer to the relevant description in the above step S301-4, which will not be repeated here.

In some embodiments, the turbidity value of the water in the dirt storage chamber can be monitored in real time. If the turbidity value is less than the turbidity threshold value, it means that the water with too high concentration of filth has been discharged to the outside, and the remaining water in the dishwasher The water can continue to be used to wash the dishes, which means the dishwasher can continue to wash the dishes. Therefore, the computer board can control the operation of the washing pump, and at the same time control the diversion pump to run in the first working state, and control the drainage pump to stop.

S301-8. Obtain the height of the water level.

For the description of step S301-8, reference may be made to the relevant description in the above step S201, which will not be repeated here.

S301-9. When the water level is lower than the first water level threshold, control the water inlet valve to open.

For the description of step S301-9, reference may be made to the relevant description in the above step S202, which will not be repeated here.

S301-10. When the water level is greater than or equal to the first water level threshold, control the water inlet valve to close.

For the description of step S301-10, reference may be made to the relevant description in the above step S203, which will not be repeated here.

S301-11. After the pre-washing stage is over, control the washing pump and the shunt pump to stop running, and control the drainage pump to operate.

For the description of controlling the washing pump and the shunt pump to stop running, and controlling the operation of the drainage pump, refer to the relevant description in the above step S204, which will not be repeated here.

S301-12. Control the drainage pump to stop.

In some embodiments, the water level in the dishwasher can be monitored in real time, and if the water level is less than or equal to the second water level threshold, it means that the dishwasher has drained, and the computer board can control the drain pump to stop.

It is understandable that controlling the drainage pump to stop in time after the drainage operation is completed can prevent the drainage pump from doing useless work and reduce energy waste.

S302, the main washing stage.

In some embodiments, as shown in FIG. 14, step S302 may be specifically implemented as the following steps:

S302-1. Execute the action of filling the dishwasher with water.

For the description of step S302-1, reference may be made to the relevant description of the above step S301-3, which will not be repeated here.

S302-2. Control the operation of the washing pump.

It should be understood that the washing pump includes a circulation pump and a heater, and the computer board can control the heater to work first during the main washing stage, and monitor the temperature value of the water in the water tank in real time, and the temperature value of the water in the water tank is greater than or equal to the first temperature When the threshold is reached, the computer board controls the heater to turn off, and at the same time controls the circulation pump to pump the water in the tank into the inner tank to drive to the spray arm, so that the spray arm can spray water to wash the surface of the tableware.

Wherein, the temperature value of the water in the sink is acquired by the temperature sensor and sent to the computer board. The first temperature threshold can be preset when the dishwasher leaves the factory, or can be user-defined. For example, the first temperature threshold It can be 40°C, 50°C or 60°C.

S302-3. Add dishwashing powder or dishwashing blocks.

In some embodiments, after the washing pump runs for the first preset time, the computer board can control the dispenser to drop dishwashing powder or dishwashing blocks, which helps to peel off the dirt on the surface of the tableware, and then can improve the dishwasher's durability against the tableware. cleaning effect.

Wherein, the first preset time may be preset when the dishwasher leaves the factory, for example, the first preset time may be 5 minutes, 6 minutes or 7 minutes. The first preset time can be understood as the first heating time, that is, the working time of the heater in step S302-2.

S302-4. Control the shunt pump to run in the first working state.

For the description of controlling the shunt pump to operate in the first working state, reference may be made to the relevant description of the above step S301-4, which will not be repeated here.

S302-5. Obtain the turbidity value of the water in the dirt storage chamber.

For the description of step S302-5, reference may be made to the related description of the above step S301-5, which will not be repeated here.

S302-6. When the turbidity value is greater than or equal to the turbidity threshold, control the washing pump to stop, control the shunt pump to run in the second working state, and control the drainage pump to operate.

For the description of step S302-6, reference may be made to the relevant description of the above-mentioned step S301-6, which will not be repeated here.

S302-7. When the turbidity value is less than the turbidity threshold, control the washing pump to operate, control the shunt pump to operate in the first working state, and control the drainage pump to stop.

For the description of step S302-7, reference may be made to the relevant description of the above-mentioned step S301-7, which will not be repeated here.

S302-8. Obtain the height of the water level.

For the description of step S302-8, reference may be made to the relevant description of the above-mentioned step S301-8, which will not be repeated here.

S302-9. When the water level is lower than the first water level threshold, control the water inlet valve to open.

For the description of step S302-9, reference may be made to the relevant description of the above-mentioned step S301-9, which will not be repeated here.

S302-10. When the water level is greater than or equal to the first water level threshold, control the water inlet valve to close.

For the description of step S302-10, reference may be made to the relevant description of the above-mentioned step S301-10, which will not be repeated here.

S302-11. Obtain the temperature value of the water in the water tank.

It can be understood that after the water is refilled during the washing process, the temperature value of the water in the tank will drop, and by obtaining the temperature value of the water in the tank, it can be determined whether the temperature value of the water in the tank is greater than or equal to the first temperature threshold .

S302-12. When it is determined that the temperature of the water in the water tank is less than the first temperature threshold, control the heater to work.

It can be understood that if it is determined that the temperature of the water in the sink is less than the first temperature threshold, it means that the temperature of the water in the sink is too low to dissolve and remove stubborn stains on the surface of the tableware, such as lard on the surface of the tableware, computer The board can control the action of the heater to increase the temperature of the water in the tank to reach the first temperature threshold.

S302-13. When it is determined that the temperature of the water in the water tank is greater than or equal to the first temperature threshold, control the heater to be turned off, and simultaneously control the circulation pump to operate.

For the description of controlling the heater to turn off and controlling the circulation pump to operate when it is determined that the temperature of the water in the water tank is greater than or equal to the first temperature threshold, please refer to the relevant description in the above step S302-2, which will not be repeated here. .

S302-14. After the main washing phase is over, control the washing pump and the diverter pump to stop running, and control the drainage pump to operate.

For the description of step S302-14, reference may be made to the relevant description in the above step S301-11, and details are not repeated here.

S302-15. Control the drainage pump to stop.

For the description of step S302-15, reference may be made to the relevant description of the above-mentioned step S301-12, which will not be repeated here.

S303. Transition stage.

In some embodiments, the transition stage is mainly to use the washing pump to spray water through the spray arm to wash the surface of the tableware to achieve the effect of washing the tableware. For the description of the transition stage, please refer to the relevant section for the pre-wash stage in step S301 above. description and will not be repeated here.

S304, hot rinsing stage.

In some embodiments, the hot rinsing stage is mainly to use the heater to heat the water in the water tank, and then use the washing pump to spray the water in the water tank through the spray arm to clean the tableware, so as to achieve the effect of cleaning and disinfection, as shown in Figure 15 Shown, the thermal rinsing stage can be specifically implemented as the following steps:

S304-1. Execute the action of filling the dishwasher with water.

For the description of step S304-1, reference may be made to the relevant description in the above step S302-1, which will not be repeated here.

S304-2. Control the action of the washing pump.

It should be understood that the washing pump includes a circulation pump and a heater, and the computer board can control the heater to work first during the main washing stage, and monitor the temperature value of the water in the water tank in real time, and the temperature value of the water in the water tank is greater than or equal to the second temperature When the threshold is reached, the computer board controls the heater to turn off, and at the same time controls the circulation pump to pump the water in the tank into the inner tank to drive to the spray arm, so that the spray arm can spray water to wash the surface of the tableware.

Wherein, the temperature value of the water in the water tank is obtained by the temperature sensor and sent to the computer board. The second temperature threshold can be preset when the dishwasher leaves the factory, or can be user-defined. For example, the second temperature threshold It can be 70°C, 80°C or 90°C.

S304-3. Adding a brightener.

In some embodiments, after the washing pump runs for a second preset time, the computer board can control the dispenser to inject brightener, which helps to brighten the glossiness of the tableware surface, makes the washed tableware look clean and bright, and helps to enhance user experience.

Wherein, the second preset time may be preset when the dishwasher leaves the factory, for example, the second preset time may be 8 minutes, 9 minutes or 10 minutes. The second preset time can be understood as the second heating time, that is, the working time of the heater in step S304-2.

S304-4. Control the shunt pump to run in the first working state.

For the description of step S304-4, reference may be made to the relevant description of the above-mentioned step S302-4, which will not be repeated here.

S304-5. After the hot rinsing stage is over, control the washing pump to stop running, control the drainage pump to operate, and control the diverter pump to keep running in the first working state.

For the description of controlling the stop of the washing pump and controlling the operation of the drainage pump, reference may be made to the relevant description in the above step S302-14, which will not be repeated here.

It can be understood that controlling the shunt pump to keep running in the first working state can make the water in the water tank flow into the dirt storage chamber, and then be discharged from the dirt storage chamber to the outside.

S304-6. Control the drainage pump to stop, and control the diverter pump to stop after a third preset time for controlling the drainage pump to stop.

Wherein, the third preset time may be preset when the dishwasher leaves the factory, for example, the third preset time may be 1 minute, 2 minutes or 3 minutes. For the description of controlling the stop of the drain pump, reference may be made to the relevant description in the above step S302-15, which will not be repeated here.

It should be understood that the diverter pump is a kind of centrifugal pump. In daily use, it is inevitable for the diverter pump to have an air-binding effect. The air-binding effect will cause residual water in the inner tank, and the diverter pump will continue to drain after the drain pump stops. When the third preset time is activated, the residual water in the inner tank can be transferred to the dirt storage chamber, so as to prevent the residual water from directly contacting the tableware in the inner tank, causing secondary pollution.

For the description of the air-binding effect, reference may be made to the related description in the above step S301-1, which will not be repeated here.

S305, drying stage.

In some embodiments, the drying stage mainly utilizes a heater and/or fan assembly to achieve the effect of drying the surface of the tableware.

The embodiment of the present application also provides an electronic device. As shown in FIG. 16 , the electronic device 160 includes: one or more processors 1601; one or more memories 1602, wherein one or more memories 1602 are used to store Computer program code, the computer program code includes computer instructions; when one or more processors 1601 execute the computer instructions, the electronic device 160 is made to execute the various steps of the methods shown in the foregoing method embodiments.

The above is only a specific implementation of the application, but the protection scope of the application is not limited thereto, and any changes or replacements within the technical scope disclosed in the application should be covered within the protection scope of the application . Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (10)

1. A dishwasher, characterized in that, comprising: liner; A water tank, the water tank is in communication with the inner tank, and a plane filter is provided at the connection between the water tank and the inner tank; A washing pump communicated with both the water tank and the inner tank; The dirt storage chamber has a dirt storage chamber and a circulation inlet, a circulation outlet and a sewage outlet connected to the dirt storage chamber, the circulation outlet is connected to the water tank, and the dirt storage chamber is provided with a sewage filter; A shunt pump communicates with both the water tank and the circulation inlet of the dirt storage chamber, and the shunt pump includes a first working state and a second working state; A drainage pump, connecting the sewage outlet with the outside world; A turbidity sensor, used to detect the turbidity value of the water in the dirt storage chamber; a controller connected to the washing pump, the diverter pump, the drainage pump and the turbidity sensor, the controller is configured to: Control the action of the washing pump, pump the water in the sink into the inner tank to wash the tableware; Obtain the turbidity value of the water in the dirt storage chamber; When the turbidity value is less than the turbidity threshold value, controlling the shunt pump to operate in the first working state, and pumping the water in the water tank into the dirt storage chamber through the circulation inlet, and Make the water in the dirt storage chamber pass through the circulation outlet and enter the water tank after being filtered by the sewage filter; When the turbidity value is greater than or equal to the turbidity threshold, control the washing pump to stop; control the shunt pump to run in the second working state, so that the circulation inlet is closed; control the drainage pump to operate , so that the circulation outlet is closed, and the water in the dirt storage chamber is discharged to the outside. 2. The dishwasher according to claim 1, wherein the dishwasher further comprises: The first water flow backstop tongue piece is rotatably connected with the dirt storage chamber, the first water flow backstop tongue piece is located in the dirt storage chamber, and is arranged at the circulation inlet; The second water flow backstop tongue piece is rotatably connected with the dirt storage chamber, the second water flow backstop tongue piece is located in the water tank and arranged at the circulation outlet; Wherein, when the diverter pump is running in the first working state, the first water flow backstop tongue opens the circulation inlet under the impact of the water flow output by the diverter pump, and the second water flow backstop The tongue piece opens the circulation outlet under the action of water pressure in the dirt storage chamber; When the diverter pump is running in the second working state, a negative pressure is formed at the circulation inlet, and the first water flow backstop tongue closes the circulation inlet under the negative pressure at the circulation inlet ; When the drainage pump is in operation, a negative pressure is formed in the dirt storage chamber, and the second water flow check tongue closes the circulation outlet under the action of the negative pressure in the dirt storage chamber. 3. The dishwasher according to claim 2, wherein the sink comprises a first cavity and a second cavity, a fine filter is provided inside the sink, and the fine filter is connected to the The water tank connects and separates the first cavity and the second cavity; the first cavity communicates with both the inner tank and the washing pump, and the second cavity communicates with the shunt pump, The second water flow check tongue is disposed in the first cavity. 4. The dishwasher according to claim 2, characterized in that, the washing process of the dishwasher comprises a pre-washing stage, a main washing stage, a hot rinsing stage and a drying stage which run in sequence; The controller executes to obtain the turbidity value of the water in the dirt storage chamber, which is specifically configured as: Acquiring the target stage where the dishwasher is in the washing process, the target stage includes the pre-wash stage and the main wash stage; The turbidity value of the water in the dirt storage chamber is acquired at the target stage in the washing process of the dishwasher. 5. The dishwasher according to claim 4, characterized in that, the washing process of the dishwasher further comprises a transition stage, the transition stage is after the main washing stage, and the transition stage is after the Before the hot rinse phase; The target phase also includes the transition phase. 6. The dishwasher according to claim 4 or 5, characterized in that, the dishwasher further comprises a water inlet valve and a water level detector connected to the controller, the water inlet valve is connected to the internal The bladder is connected, and the water level detector is used to detect the water level of the water in the inner tank; The controller is further configured to: Obtain the height of the water level; When the water level is less than a first water level threshold, control the water inlet valve to open; When the water level is greater than or equal to the first water level threshold, the water inlet valve is controlled to be closed. 7. The dishwasher according to claim 4 or 5, wherein the controller is further configured to: After the current target stage is over, control the washing pump and the diverter pump to stop running, and control the drainage pump to operate; Wherein, when the washing pump and the diverter pump stop running and the drainage pump operates, a negative pressure is formed in the dirt storage chamber, and the second water flow backstop tongue is in the dirt storage chamber. The circulation outlet is closed under the action of internal negative pressure, and the circulation inlet is opened by the first water flow check tongue under the action of negative pressure in the dirt storage chamber. 8. A control method for a dishwasher, characterized in that the method is applied to the dishwasher according to any one of claims 1 to 7, and the method comprises: Control the action of the washing pump, pump the water in the sink into the inner tank to wash the tableware; Obtain the turbidity value of the water in the storage chamber; When the turbidity value is less than the turbidity threshold, the shunt pump is controlled to operate in the first working state, and the water in the tank is pumped into the dirt storage chamber through the circulation inlet, and the dirt storage chamber The water in the tank enters the water tank after passing through the circulation outlet and being filtered by the sewage filter; When the turbidity value is greater than or equal to the turbidity threshold, control the washing pump to stop; control the shunt pump to run in the second working state, so that the circulation inlet is closed; control the drainage pump to operate, so that the The circulation outlet is closed, and the water in the dirt storage chamber is discharged to the outside. 9. The method according to claim 8, wherein said obtaining the turbidity value of the water in the dirt storage chamber comprises: Acquiring the target stage in which the dishwasher is in the washing process, the target stage includes a pre-wash stage and a main-wash stage; The turbidity value of the water in the dirt storage chamber is acquired at the target stage in the washing process of the dishwasher. 10. The method according to claim 9, further comprising: Get the height of the water level; When the water level is less than the first water level threshold, control the water inlet valve to open; When the water level is greater than or equal to the first water level threshold, the water inlet valve is controlled to be closed.