CN116687300A - Dish washer and control method thereof - Google Patents

Abstract

The embodiment of the application provides a dish washer and a control method thereof, and relates to the technical field of dish washers. The dish washer includes: an inner container; a plane filter screen is arranged at the communication part of the water tank and the inner container; a washing pump; the sewage storage chamber is provided with a sewage storage cavity, a circulating inlet, a circulating outlet and a sewage outlet, and a sewage filter screen positioned at the circulating outlet is arranged in the sewage storage chamber; a split flow pump; a draining pump; a turbidity sensor for detecting a turbidity value of water; a controller configured to: controlling a washing pump to act, and pumping water in a water tank into the inner container to wash tableware; obtaining a turbidity value of water; under the condition that the turbidity value is smaller than the turbidity threshold value, controlling the split pump to pump water in the water tank into the sewage storage cavity, and enabling water in the sewage storage cavity to enter the water tank after passing through the circulating outlet and being filtered by the sewage filter screen; in the case that the turbidity value is greater than or equal to the turbidity threshold value; controlling the washing pump to stop; controlling the operation of the split-flow pump to close the circulating inlet; and controlling the action of the drainage pump to drain the water in the dirt storage cavity to the outside.

Description

Dish washer and control method thereof

Technical Field

The application relates to the technical field of dish washers, in particular to a dish washer and a control method thereof.

Background

The dish washer is the equipment of automatically cleaning tableware such as bowl, chopsticks, dish, sword, fork, at present, uses the planar filter screen to carry out separation filtration to the washing water at the full-automatic dish washer on the market and recycles, but in the washing process of dish washer, can meet the tableware of different dirty degree, leads to the washing water turbid degree different, and if the washing water of severe turbidity is recycled will lead to the tableware to wash uncleanly, influences user experience.

Disclosure of Invention

The embodiment of the application provides a dish washer and a control method thereof, which are used for improving the washing effect of the dish washer on tableware.

In order to achieve the above purpose, the application adopts the following technical scheme:

in a first aspect, embodiments of the present application provide a dishwasher, comprising:

an inner container;

the water tank is communicated with the inner container, and a plane filter screen is arranged at the communication part of the water tank and the inner container;

the washing pump is communicated with the water tank and the liner;

the sewage storage chamber is provided with a sewage storage cavity, a circulating inlet, a circulating outlet and a sewage outlet, wherein the circulating inlet, the circulating outlet and the sewage outlet are communicated with the sewage storage cavity, and a sewage filter screen positioned at the circulating outlet is arranged in the sewage storage chamber;

the split pump is communicated with the water tank and the circulating inlet of the dirt storage cavity and comprises a first working state and a second working state;

A drainage pump communicated with the drain outlet and the outside;

the turbidity sensor is used for detecting the turbidity value of water in the sewage storage cavity;

a controller connected to each of the wash pump, the split pump, the drain pump, and the turbidity sensor, the controller configured to:

controlling a washing pump to act, and pumping water in a water tank into the inner container to wash tableware;

acquiring a turbidity value of water in the sewage storage cavity;

under the condition that the turbidity value is smaller than the turbidity threshold value, controlling the split flow pump to operate in a first working state, pumping water in the water tank into the sewage storage cavity through the circulating inlet, and enabling the water in the sewage storage cavity to enter the water tank after being filtered through the sewage filter screen through the circulating outlet;

in the case that the turbidity value is greater than or equal to the turbidity threshold value; controlling the washing pump to stop; controlling the split flow pump to operate in a second working state, so that the circulating inlet is closed; and controlling the drainage pump to act, closing the circulation outlet, and draining the water in the sewage storage cavity to the outside.

The embodiment of the application has at least the following beneficial effects: the embodiment of the application provides a dish washer with a dirt storage cavity, wherein in the process of washing tableware by the dish washer, the turbidity value of water in the dirt storage cavity is obtained, under the condition that the turbidity value is smaller than a turbidity threshold value, the water enters a water tank to be recycled after being filtered by a sewage filter screen, and dirt in the water cannot be remained in the dirt storage cavity through the sewage filter screen; under the condition that the turbidity value is larger than or equal to the turbidity threshold value, the water containing the pollutants in the pollution storage cavity is discharged to the outside, so that the turbidity value of the water recycled in the dish washing machine is always smaller than the turbidity threshold value, and the washing effect of the dish washing machine on tableware can be improved.

In some embodiments, the dishwasher further comprises: the first water flow check tongue piece is rotationally connected with the dirt storage chamber, is positioned in the dirt storage cavity and is arranged at the circulating inlet; the second water flow check tongue piece is rotationally connected with the dirt storage chamber, is positioned in the water tank and is arranged at the circulating outlet; under the condition that the split flow pump runs in a first working state, the first water flow check tongue piece opens the circulating inlet under the impact of water flow output by the split flow pump, and the second water flow check tongue piece opens the circulating outlet under the action of water pressure in the sewage storage cavity; under the condition that the split flow pump runs in the second working state, negative pressure is formed at the circulating inlet, and the first water flow check tongue piece closes the circulating inlet under the action of the negative pressure at the circulating inlet; under the action of the drainage pump, negative pressure is formed in the dirt storage cavity, and the second water flow non-return tongue piece closes the circulation outlet under the action of the negative pressure in the dirt storage cavity.

In some embodiments, the water tank comprises a first cavity and a second cavity, a fine filter screen is arranged in the water tank, and the fine filter screen is connected with the water tank and separates the first cavity from the second cavity; the first cavity is communicated with the liner and the washing pump, the second cavity is communicated with the split-flow pump, and the second water flow non-return tongue piece is arranged in the first cavity.

In some embodiments, the washing process of the dishwasher includes a pre-wash stage, a main wash stage, a hot rinse stage, and a dry stage, which are sequentially operated; the controller is used for acquiring the turbidity value of the water in the sewage storage cavity and is specifically configured to: acquiring a target stage of the dish washer in a washing process, wherein the target stage comprises a pre-washing stage and a main washing stage; the turbidity value of the water in the dirt storage chamber is obtained at a target stage in the washing process of the dish washer.

In some embodiments, the dishwasher washing process further comprises a transition phase, the transition phase being subsequent to the main wash phase and the transition phase being prior to the hot rinse phase; the target phase also includes a transition phase.

In some embodiments, the dishwasher further comprises a water inlet valve connected to the controller and a water level detector connected to the inner container, the water level detector for detecting the water level of the water in the inner container; a controller, further configured to: acquiring the water level height; controlling the water inlet valve to be opened under the condition that the water level is smaller than a first water level threshold value; and controlling the water inlet valve to be closed under the condition that the water level is greater than or equal to the first water level threshold value.

In some embodiments, the controller is further configured to: after the current target stage is finished, controlling the washing pump and the shunt pump to stop running, and controlling the drainage pump to act; under the condition that the washing pump and the split-flow pump stop running and the drainage pump acts, negative pressure is formed in the dirt storage cavity, the second water flow check tongue piece closes the circulation outlet under the negative pressure effect in the dirt storage cavity, and the first water flow check tongue piece opens the circulation inlet under the negative pressure effect in the dirt storage cavity.

In a second aspect, an embodiment of the present application provides a control method of a dishwasher, the method comprising: controlling a washing pump to act, and pumping water in a water tank into the inner container to wash tableware; acquiring a turbidity value of water in the sewage storage cavity; under the condition that the turbidity value is smaller than the turbidity threshold value, controlling the split flow pump to operate in a first working state, pumping water in the water tank into the sewage storage cavity through the circulating inlet, and enabling the water in the sewage storage cavity to enter the water tank after being filtered through the sewage filter screen through the circulating outlet; controlling the washing pump to stop under the condition that the turbidity value is greater than or equal to the turbidity threshold value; controlling the split flow pump to operate in a second working state, so that the circulating inlet is closed; and controlling the drainage pump to act, closing the circulation outlet, and draining the water in the sewage storage cavity to the outside.

In some embodiments, obtaining a turbidity value of water in the soil storage chamber comprises: acquiring a target stage of the dish washer in a washing process, wherein the target stage comprises a pre-washing stage and a main washing stage; the turbidity value of the water in the dirt storage chamber is obtained at a target stage in the washing process of the dish washer.

In some embodiments, the control method further comprises: acquiring the water level height; controlling the water inlet valve to be opened under the condition that the water level is smaller than a first water level threshold value; and controlling the water inlet valve to be closed under the condition that the water level is greater than or equal to the first water level threshold value.

In some embodiments, the control method further comprises: after the current target stage is finished, controlling the washing pump and the shunt pump to stop running, and controlling the drainage pump to act; under the condition that the washing pump and the split-flow pump stop running and the drainage pump acts, negative pressure is formed in the dirt storage cavity, the second water flow check tongue piece closes the circulation outlet under the negative pressure effect in the dirt storage cavity, and the first water flow check tongue piece opens the circulation inlet under the negative pressure effect in the dirt storage cavity.

In a third aspect, an embodiment of the present application provides a controller, including: one or more processors; one or more memories; wherein the one or more memories are configured to store computer program code comprising computer instructions that, when executed by the one or more processors, cause the controller to perform any of the control methods provided in the second aspect and embodiments.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium comprising computer instructions which, when controlled on a computer, cause the computer to perform any of the control methods provided in the second aspect and embodiments.

In a fifth aspect, embodiments of the present application provide a computer program product directly loadable into a memory and comprising software code, when loaded and executed via a computer, enabling the implementation of any of the control methods as provided in the second aspect and in the embodiments, as provided in the second aspect and in a possible implementation.

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

The advantageous effects described in the second to fifth aspects of the present application may be referred to for the advantageous effect analysis of the first aspect, and will not be described here again.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and do not limit the application.

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

Fig. 2 is a schematic view illustrating a structure of another dishwasher according to an embodiment of the present application;

FIG. 3 is a schematic view of another dishwasher according to an embodiment of the present application;

FIG. 4 is a schematic view of another dishwasher according to an embodiment of the present application;

FIG. 5 is a block diagram of a hardware configuration of a dishwasher according to an embodiment of the present application;

FIG. 6 is a schematic view of a washing process of a dishwasher according to an embodiment of the present application;

FIG. 7 is a schematic view of a washing process of another dishwasher according to an embodiment of the present application;

fig. 8 is a flowchart illustrating a control method of a dishwasher according to an embodiment of the present application;

FIG. 9 is a flow chart of another method of controlling a dishwasher according to an embodiment of the present application;

FIG. 10 is a flow chart of another method of controlling a dishwasher according to an embodiment of the present application;

FIG. 11 is a flow chart of another method of controlling a dishwasher according to an embodiment of the present application;

FIG. 12 is a flow chart of another method of controlling a dishwasher according to an embodiment of the present application;

FIG. 13 is a flow chart of another method of controlling a dishwasher according to an embodiment of the present application;

FIG. 14 is a flow chart of another method of controlling a dishwasher according to an embodiment of the present application;

FIG. 15 is a flow chart of another method of controlling a dishwasher according to an embodiment of the present application;

fig. 16 is a schematic diagram of a hardware architecture of an electronic device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

Fig. 1 is a schematic structural diagram of a dishwasher according to an embodiment of the present application, and as shown in fig. 1, a dishwasher 100 includes: the shower assembly includes a housing 11, a liner 12, a shower arm 13, a shelf 14, a base 15, and a door (not shown in fig. 1).

The outer shell 11 is disposed outside the inner container 12, and is used for protecting the inner container 12.

The shower arm 13 is rotatably provided inside the inner tub 12, and can wash tableware on the rack 14 by spraying water. The shower arm 13 is a hollow housing having spray holes (not shown in fig. 1) formed therein for spraying water toward the dishes of the rack 14. It should be appreciated 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 the spray of water flow.

A shelf 14 is provided 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 serves to supply water into the shower arm 13 so that the shower arm 13 can wash dishes on the rack 14 by spraying water.

In some embodiments, the base 15 may include a sump 151, a wash pump 152, a sump chamber 153, a diverter pump 154, a drain pump 155, a turbidity sensor 156, and a planar filter screen 157.

The water tank 151 is used for holding water, the washing pump 152 is used for driving the water in the water tank to the spray arm 13, the dirt storage chamber 153 is used for filtering the water and accumulating dirt, the split pump 154 is used for enabling the water to be pumped into the dirt storage chamber, the drainage pump 155 is used for discharging residual water after washing, namely water sprayed by the spray arm, the water can be discharged out of the dish washer through the drainage pump, the turbidity sensor 156 is used for detecting the turbidity value of the water, a plane filter screen 157 is arranged at the communicating position of the water tank 151 and the inner container 12, the water in the inner container 12 enters the water tank 151 after passing through the plane filter screen 157, and part of dirt can be filtered out through the plane filter screen 157, for example, the big vegetable leaves can be filtered out through the plane filter screen 157.

In some embodiments, the dirt holding chamber 153 has a dirt holding chamber 1531 and a circulation inlet 1532, a circulation outlet 1533 and a drain outlet (not shown in fig. 1) in communication with the dirt holding chamber 1531, the circulation outlet 1533 in communication with the water tank 151, and a dirt water filter screen 1534 located at the circulation outlet 1533 is provided within the dirt holding chamber 153.

The sewage storage cavity 1531 is used for storing sewage and pollutants, the circulating inlet 1532 is an inlet for water to enter the sewage storage cavity, the circulating outlet 1533 is an outlet for filtered water in the sewage storage cavity 1531 to flow into the water tank 151, the sewage filter screen 1534 is used for filtering the water in the sewage storage cavity 1531, the sewage and pollutants are stored in the sewage storage cavity 1531, and the sewage drain is an outlet for discharging the water containing the sewage and pollutants in the sewage storage cavity 1531 to the outside.

In some embodiments, the split pump 154 may include a first operating state and a second operating state, when the split pump 154 operates in the first operating state, water in the sump 151 may be pumped into the sump cavity 1531 through the circulation inlet 1532, and water in the sump cavity 1531 may be filtered through the circulation outlet 1533 and through the sewage filter screen 1534 and then enter the sump 151; when the split pump 154 is operating in the second operating state, the circulation inlet 1532 may be closed.

In some embodiments, as shown in fig. 2, dishwasher 100 further includes a first water flow check tab 15311 located within sump cavity 1531 and a second water flow check tab 1511 located within sump 151.

The first water flow check tongue piece 15311 is rotatably connected to the dirt storage chamber 153 and disposed at the circulation inlet 1532, and the second water flow check tongue piece 1511 is rotatably connected to the dirt storage chamber 153 and disposed at the circulation outlet 1533.

When the drain pump 155 is stopped and the diversion pump 154 is operated in the first working state, the first water flow check tongue 15311 opens the circulation inlet 1532 under the impact of the water flow output from the diversion pump 154, and the second water flow check tongue 1511 opens the circulation outlet 1533 under the action of the water pressure in the dirt storage cavity 1531. When the drain pump 155 is operated and the split-flow pump 154 is operated in the second operating state, a negative pressure is formed at the circulation inlet 1532, the first water flow check tongue piece 15311 closes the circulation inlet 1532 under the negative pressure at the circulation inlet 1532, a negative pressure is formed in the dirt storage cavity 1531, and the second water flow check tongue piece 1511 closes the circulation outlet 1533 under the negative pressure in the dirt storage cavity 1531.

In some embodiments, as shown in fig. 3, the sump 151 of the dishwasher 100 may include a first cavity 1512 and a second cavity 1513, with a fine filter screen 1514 disposed within the sump 151. The fine filter 1514 is connected to the water tank 151 and separates a first cavity 1512 and a second cavity 1513, the first cavity 1512 is communicated with the liner 12 and the wash pump 152, the second cavity 1513 is communicated with the split pump 154, and the second water flow check tongue piece 1511 is provided 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 being coupled to the liner 12, the water level detector 159 being configured to detect the level of water in the liner 12.

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

In some embodiments, the fill valve 158 may be controlled to open in the event that the level detector 159 detects a level less than a first level threshold; in the event that the water level detector 159 detects a water level greater than or equal to the first water level threshold, the fill valve 158 may be controlled to close.

Although not shown in fig. 1 to 4, the dishwasher may further include a controller 16 and a memory 17 connected thereto, the controller 16 being a control center of the dishwasher 100, connecting various parts of the dishwasher using various interfaces and lines, performing various washing programs of the dishwasher by running or executing programs stored in the memory 17, and calling data stored in the memory 17. In some embodiments, the 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 wash pump 152 to execute a control instruction based on the instruction operation code and the timing signal. By way of example, the controller 16 may be a central processing unit (central processing unit, CPU), a general purpose processor network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microcontroller, a programmable logic device (programmable logic device, PLD), or any combination thereof. The controller 16 may also be any other device having processing functions, such as a circuit, a device, or a software module, and the embodiments of the present application are not limited in this respect.

In some embodiments, the memory 17 mainly includes a storage program area and a storage data area, where the storage program area may store an operating system, an application program (such as a voice prompt function, an information display function, etc.) required for at least one function; the storage data area may store data created according to the use of the dishwasher 100. In addition, the memory 17 may include high-speed random access memory, and may also include nonvolatile memory such as a magnetic disk storage device, flash memory device, or other volatile solid-state storage device, and the like.

Fig. 5 is a block diagram of a hardware configuration 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 23, and a circulation pump 24.

In some embodiments, the dispenser 18 is coupled to the controller 16 for dispensing dishwashing powder or a brightener 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, an organic light-emitting diode (OLED) display. The specific type, size, resolution, etc. of the display 19 are not limited. The display 19 may be used to display a control panel of the dishwasher. The dishwasher may feed back the current operating state of the dishwasher, such as the run time, the washing mode, the washing phase, etc., via the display 19.

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

In some embodiments, the blower assembly 21 is connected to the controller 16, and the blower assembly 21 is configured to dry the surface of the dishes after the dishes are washed, thereby enhancing the user's experience.

In some embodiments, the temperature sensor 22 is coupled to the controller 16 for detecting a temperature value of the water in the water tank 151 and transmitting 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 may be used to issue a voice prompt after the dish washing is completed, where the content of the voice prompt may be preset when the dish washer 100 leaves the factory or may be user-defined, for example, the content of the voice prompt may be: "washing and disinfecting of tableware has been completed".

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

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

It will be appreciated that the construction illustrated in the embodiments of the present application is not intended to constitute a particular limitation of the dishwasher. In other embodiments of the application, the intelligent cookware and intelligent cookware may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The embodiments of the present application will be described in detail below with reference to the drawings attached to the specification.

It will be appreciated that when a user desires to use the dishwasher to wash dishes, the user may select a washing mode of the dishwasher on the display according to the type of dishes desired to be washed, for example, the type of dishes desired to be washed including large bowls, small bowls, cups and dishes, and may select a hybrid washing mode, and the controller performs a corresponding washing program according to the washing mode selected by the user. As shown in fig. 6, the washing course 60 of the washing program may include a pre-wash stage 61, a main wash stage 62, a hot rinse stage 63, and a dry stage 64, which are sequentially operated.

Wherein, the pre-washing stage 61 mainly uses a washing pump to spray water out through a spray arm to wash the surface of tableware; the main wash stage 62 is mainly to heat water to warm (hot) water by a heater, for example, the water can be heated to 40 ℃, then the water at 40 ℃ is sprayed out by a spray arm by a washing pump to forcefully wash tableware, and a cleaning agent is added to remove dirt and grease; the hot rinsing stage 63 mainly uses a heater to heat water into warm (hot) water, for example, the water can be heated to 70 ℃, and then a washing pump is used for spraying the water with the temperature of 70 ℃ out through a spray arm to clean and disinfect tableware; the drying stage 64 is primarily directed to utilizing a heater and/or fan assembly to effect the drying of the surface of the cutlery.

In some embodiments, the pre-wash stage 61, the main wash stage 62, and the hot rinse stage 63 may wash with multiple water inputs, while the water of each of the pre-wash stage 61, the main wash stage 62, and the hot rinse stage 63 is recycled in the corresponding stages.

It can be seen that the pre-wash stage 61 and the main wash stage 62 can be targeted as they cause most, if not all, of the contaminants on the dishes to be stripped off, such that the water turbidity values of the pre-wash stage 61 and the main wash stage 62 are increased. That is, the water in the tub is filtered through the sump in the pre-washing stage 61 and the main washing stage 62, and the water containing the high concentration of the contaminants is discharged, so that the turbidity value of the water in the tub is reduced, and the washing effect of the dishwasher on the dishes can be improved.

In some embodiments, as shown in fig. 7, the washing process 60 may further include a transition stage 62a, the transition stage 62a being subsequent to the main washing stage 62, and the transition stage 62a being prior to the hot rinsing stage 63.

It will be appreciated that some of the contaminants on the surface of the dishes oxidize, dry, etc. due to prolonged exposure to air, making it difficult to peel off from the surface of the dishes, conventional washing means may not be able to wash such dishes clean, a transition stage 62a may be added after the main wash stage 62 and before the hot rinse stage 63 in order to enhance the washing effect of the dishwasher on the dishes, a user may select a powerful wash mode on the display of the dishwasher when the user needs to wash such dishes, and the washing process of the washing program corresponding to the powerful wash mode may include the transition stage 62a.

The transition stage 62a mainly uses a washing pump to spray water out through a spray arm to wash the surface of the tableware, so that the pollutants on the surface of the tableware are peeled off.

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

Fig. 8 is a flowchart of a control method of a dishwasher according to an embodiment of the present application, the method being applied to a controller of the dishwasher, the method comprising the steps of:

s101, executing water inlet action of the dish washer.

In some embodiments, when the dishwasher starts to wash the tableware, the water inlet valve can be controlled to be opened, the water level height in the inner container can be monitored in real time, and the water inlet valve is controlled to be closed under the condition that the water level height in the inner container is greater than or equal to the first water level height threshold value, so that the water inlet action of the dishwasher is completed.

S102, controlling a washing pump to act, and pumping water in a water tank into the liner to wash tableware.

In some embodiments, the water in the water tank can be pumped into the inner container by controlling the action of the washing pump and sprayed out through the spray arm to wash the surface of the tableware, so that the effect of washing the tableware is achieved.

In some embodiments, the dispenser may be controlled to dispense dishwashing powder prior to controlling the action of the wash pump.

S103, controlling the split flow pump to operate in a first working state.

In some embodiments, controlling the diverter pump to operate in the first operating state may pump water in the sump into the sump cavity through the circulation inlet and allow water in the sump cavity to enter the sump through the circulation outlet and after being filtered through the sewage filter screen.

The first operating state may be a state of operation in a clockwise direction or a state of operation in a counterclockwise direction.

S104, acquiring the turbidity value of the water in the sewage storage cavity.

In some embodiments, the dirty matters on the surface of the tableware enter the dirty cavity along with the water flow after being stripped and accumulated in the dirty cavity, the water in the dirty cavity flows into the water tank after being filtered by the sewage filter screen, and the concentration of the dirty matters in the dirty cavity can be determined by acquiring the turbidity value of the water in the dirty cavity.

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

s1041, acquiring a target stage of the dish washer in the washing process.

Wherein the target stage includes a pre-wash stage and a main wash stage.

In some embodiments, the turbidity value of the water in the soil chamber is only obtained during the execution of the target phase, indicating that the turbidity value of the water in the soil chamber need not be obtained if the current dishwasher execution phase is a non-target phase.

It will be appreciated that most, if not all, of the dirt on the surface of the cutlery will be peeled off during the target phase, whereas during the non-target phase the surface of the cutlery will already be clear of dirt or will have very little dirt, typically not such that the turbidity value of the water in the dirt holding chamber exceeds the turbidity threshold.

S1042, acquiring the turbidity value of the water in the sewage storage cavity at a target stage in the washing process of the dish washer.

In some embodiments, by obtaining the turbidity value of the water in the soil chamber at a target stage in the washing process of the dishwasher, the concentration of soil in the water in the soil chamber can be determined, and when the concentration of soil in the water in the soil chamber is too high, the washing effect of the dishwasher on the dishes will be affected.

It will be appreciated that the turbidity value of the water in the storage chamber is directly proportional to the concentration of the turbidity material in the water in the storage chamber, i.e. the higher the turbidity value of the water in the storage chamber, the higher the concentration of the turbidity material in the water in the storage chamber, and vice versa.

And S105, under the condition that the turbidity value is greater than or equal to the turbidity threshold value, controlling the washing pump to stop, simultaneously controlling the shunt pump to run in a second working state, and controlling the drainage pump to act.

The second operating state may be a state of operating in a clockwise direction or a state of operating in a counterclockwise direction, and the second operating state is a state of operating in a counterclockwise direction when the first operating state is a state of operating in a clockwise direction, and the second operating state is a state of operating in a clockwise direction when the first operating state is a state of operating in a counterclockwise direction.

In some embodiments, controlling the wash pump to stop can cause the spray arm to stop spraying water to the surface of the tableware, controlling the diverter pump to operate in the second operating state can cause the circulation inlet to be closed, controlling the drain pump to act can cause the circulation outlet to be closed, and discharging water in the dirt storage cavity to the outside, and discharging dirt in the dirt storage cavity to the outside along with the water flow.

Based on the embodiment shown in fig. 8, at least the following benefits are brought about: according to the control method of the dish washing machine, provided by the embodiment of the application, dirt is stripped from the surface of the dish in a target stage, flows into the dirt storage cavity along with water, is accumulated in the dirt storage cavity when the water in the dirt storage cavity passes through the sewage filter screen, and is discharged to the outside under the condition that the turbidity value of the water in the dirt storage cavity is greater than or equal to the turbidity threshold value, the dirt in the dirt storage cavity is also discharged to the outside along with the water flow, and the water in the dirt storage cavity flows into the water tank for recycling after being filtered by the sewage filter screen, so that the turbidity value of the water filtered by the sewage filter screen is reduced, and the dish washing effect of the dish washing machine on the dish is improved.

Fig. 10 is a flowchart of another control method of a dishwasher according to an embodiment of the present application, the method being applied to a controller of the dishwasher, the method comprising the steps of:

S201, acquiring the water level height.

It will be appreciated that when there is not a sufficient amount of water in the dishwasher that it is difficult to wash the dishes, the amount of water in the dishwasher may be determined by taking the height of the water level in the dishwasher's liner.

The water level in the inner container of the dish washer is in a proportional relation with the water quantity in the dish washer, namely, the higher the water level in the inner container of the dish washer is, the more the water quantity in the dish washer is, and vice versa.

S202, controlling the inlet valve to be opened under the condition that the water level is smaller than a first water level threshold.

In some embodiments, in the event that the water level is determined to be less than the first water level threshold, indicating that the amount of water in the dishwasher is reduced, which may affect the dishwasher's effectiveness in washing dishes, the water inlet valve may be controlled to open such that the amount of water in the dishwasher is increased.

Wherein, the first water level height threshold value may be preset when the dish washer leaves the factory.

And S203, controlling the water inlet valve to be closed under the condition that the water level is greater than or equal to the first water level threshold value.

In some embodiments, in the event that the water level is determined to be greater than or equal to the first water level threshold, an indication is made that the quantity of water in the dishwasher is sufficient to clean the dishes, and the water inlet valve may be controlled to close, stopping the dishwasher water inlet action.

The description of the first water level threshold may refer to the description related to step S202, which is not repeated herein.

Based on the embodiment shown in fig. 10, at least the following benefits are brought about: according to the control method of the dish washing machine, provided by the embodiment of the application, whether the water quantity in the dish washing machine is enough to wash the dishes is determined by monitoring the water level in the inner container of the dish washing machine in real time, and the water inlet action of the dish washing machine is timely executed when the water level in the inner container of the dish washing machine is monitored to be reduced, so that the enough water quantity in the dish washing machine is maintained, and the washing effect of the dish washing machine on the dishes is improved.

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

s204, after the current target stage is finished, controlling the washing pump and the shunt pump to stop running, and controlling the drainage pump to act.

Under the condition that the washing pump and the split-flow pump stop running and the drainage pump acts, negative pressure is formed in the dirt storage cavity, the circulation outlet is closed under the negative pressure effect of the second water flow check tongue piece in the dirt storage cavity, and the circulation inlet is opened under the negative pressure effect of the first water flow check tongue piece in the dirt storage cavity.

In some embodiments, the washing pump is controlled to stop running, namely the dish washing machine stops the washing action on tableware, the second water flow check tongue piece closes the circulation outlet under the negative pressure effect in the dirt storage cavity, so that water in the dirt storage cavity cannot enter the water tank, the first water flow check tongue piece opens the circulation inlet under the negative pressure effect in the dirt storage cavity, so that water in the water tank can enter the dirt storage cavity, and the water in the dirt storage cavity can be discharged outside by controlling the drainage pump action.

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 benefits are brought about: according to the control method of the dish washing machine, provided by the embodiment of the application, the water in the water tank is discharged outside after the current target stage is finished, so that secondary pollution caused by the fact that the water in the current target stage is used for washing in the next stage is avoided, the washing effect of the dish washing machine on tableware is affected, that is, the water in the water tank is discharged outside after the current target stage is finished, and the washing effect of the dish washing machine on tableware can be improved.

The control method of a dish washer according to the present application will be described with reference to a specific example. Fig. 12 is a flow chart of a method for controlling a powerful washing mode of a dishwasher according to an embodiment of the present application, where the method is applied to a controller of the dishwasher, and the controller is a computer board, and as shown in fig. 12, a washing process corresponding to the powerful washing mode includes a pre-washing stage, a main washing stage, a transition stage, a hot rinsing stage and a drying stage.

S301, a pre-washing stage.

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

S301-1, controlling the drainage pump to act for 3 times to drain residual water in the dirt storage cavity and/or the liner.

It will be appreciated that the drain pump is a centrifugal pump, and in everyday use, the air-binding effect of the drain pump is unavoidable, that is, air entering the drain pump is unavoidable, and in the case of air in the drain pump, since the air density is far lower than the density of the transported water, the centrifugal force generated after the drain pump acts is small, and thus the low pressure formed in the central area of the impeller of the drain pump is insufficient to suck water into the pump, so that residual water is present in the dirt-holding chamber and/or the liner.

Therefore, before the dish washing machine washes the dishes each time, the computer board can control the drainage pump to act for 3 times to drain the residual water in the dirt storage cavity and/or the inner container, that is, the computer board can control the drainage pump to act for 3 times in the pre-washing stage to drain the residual water in the dirt storage cavity and/or the inner container, so that the residual water is prevented from being used for washing the dishes, and secondary pollution is reduced.

S301-2, putting pre-washing powder.

In some embodiments, the computer board can control the distributor to throw in the pre-washing powder in the pre-washing stage, and when the spray arm sprays water to wash the surface of the tableware, the computer board is favorable for stripping the dirty matters on the surface of the tableware, so that the washing effect of the dish washer on the tableware can be improved.

S301-3, executing water inlet action of the dish washing machine.

In some embodiments, the computer board can control the water inlet valve to be opened so that the dish washer can feed water, monitor the water level in the dish washer in real time, and control the water inlet valve to be closed under the condition that the water level is greater than or equal to the first water level threshold value so as to finish the water feeding action of the dish washer.

S301-4, controlling the action of the washing pump, and simultaneously controlling the split flow pump to operate in a first working state.

It should be appreciated that the wash pump includes a circulation pump and a heater, the computer board can control the circulation pump to operate during the pre-wash phase, pump water in the sump into the liner to drive the spray arm so that the spray arm can spray water to flush the surface of the dishes, and the water during the pre-wash phase can be chilled water, so the heater may not be active during the pre-wash phase.

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

In some embodiments, the computer board controls the split pump to operate in the first working state, so that water in the water tank can be pumped into the sewage storage cavity through the circulating inlet, the water in the sewage storage cavity enters the water tank after being filtered by the sewage filter screen through the circulating outlet, and the pollutants filtered by the sewage filter screen are accumulated in the sewage storage cavity.

In some embodiments, the contaminants may be contaminant particles.

S301-5, acquiring the turbidity value of the water in the sewage storage cavity.

In some embodiments, by obtaining the turbidity value of the water in the soil storage chamber, the concentration of soil in the water in the soil storage chamber can be determined, and when the concentration of soil in the water in the soil storage chamber is too high, the washing effect of the dish washing machine on tableware can be affected.

It will be appreciated that the turbidity value of the water in the storage chamber is directly proportional to the concentration of the turbidity material in the water in the storage chamber, i.e. the higher the turbidity value of the water in the storage chamber, the higher the concentration of the turbidity material in the water in the storage chamber, and vice versa.

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

S301-6, under the condition that the turbidity value is greater than or equal to the turbidity threshold value, controlling the washing pump to stop, simultaneously controlling the shunt pump to run in a second working state, and controlling the drainage pump to act.

In some embodiments, when the turbidity value is greater than or equal to the turbidity threshold value, the concentration of the turbidity matters in the dirt storage cavity is too high, which may affect the washing effect of the dish washing machine on the tableware, so that the washing can be suspended, and the water with the too high concentration of the turbidity matters is discharged to the outside and then washed.

And S301-7, controlling the action of the washing pump under the condition that the turbidity value is smaller than the turbidity threshold value, simultaneously controlling the shunt pump to operate in a first working state, and controlling the drainage pump to stop.

The description of controlling the operation of the washing pump and simultaneously controlling the operation of the split-flow pump in the first operating state refers to the related description in step S301-4, and is not repeated herein.

In some embodiments, the turbidity value of the water in the dirt storage chamber can be monitored in real time, and in the case that the turbidity value is smaller than the turbidity threshold value, the water with the too high concentration of the dirt is discharged out of the environment, and the rest water in the dish washing machine can be used for washing the dishes, that is, the dish washing machine can continue to wash the dishes. Therefore, the computer board can control the action of the washing pump, simultaneously control the shunt pump to run in the first working state and control the drainage pump to stop.

S301-8, acquiring the water level height.

The description of step S301-8 may refer to the related description in step S201, and will not be repeated here.

S301-9, controlling the inlet valve to be opened under the condition that the water level is smaller than the first water level threshold value.

The description of step S301-9 may refer to the related description in step S202, and will not be repeated here.

S301-10, controlling the water inlet valve to be closed under the condition that the water level is greater than or equal to the first water level threshold value.

The description of step S301-10 may refer to the related description in step S203, and will not be repeated here.

S301-11, after the pre-washing stage is finished, controlling the washing pump and the shunt pump to stop running, and controlling the drainage pump to act.

The description of the control of the operation of the washing pump and the split pump refers to the related description in the above step S204, and is not repeated here.

S301-12, controlling the drainage pump to stop.

In some embodiments, the water level in the dishwasher may be monitored in real time, and in the case that the water level is less than or equal to the second water level threshold, the computer board may control the drain pump to stop, indicating that the dishwasher drain action is completed.

It can be understood that the drain pump is controlled to stop in time after the drain action is completed, so that the drain pump can be prevented from doing idle work, and the energy waste is reduced.

S302, a main washing stage.

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

s302-1, executing water inlet action of the dish washing machine.

The description of step S302-1 may refer to the related description in step S301-3, which is not repeated here.

S302-2, controlling the action of the washing pump.

It should be understood that the washing pump includes circulating pump and heater, and the computer board can control the heater work earlier in the main stage of washing to the temperature value of water in the real-time supervision basin, and under the circumstances that the temperature value of water in the basin is greater than or equal to first temperature threshold value, the computer board control heater closes, and the action of circulating pump is simultaneously controlled, pumps the water pump in the basin into the inner bag in order to drive to the spray arm for the spray arm can spray water and wash the tableware surface.

The temperature value of the water in the water tank is obtained by a temperature sensor and sent to the computer board, and the first temperature threshold value can be preset when the dish-washing machine leaves a factory or can be user-defined, for example, the first temperature threshold value can be 40 ℃, 50 ℃ or 60 ℃.

S302-3, throwing in dish washing powder or dish washing blocks.

In some embodiments, after the washing pump is operated for a first preset time, the computer board can control the dispenser to put the dish washing powder or the dish washing block, so that dirt on the surface of the tableware can be peeled off, and the washing effect of the dish washing machine on the tableware can be improved.

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 may be understood as a first heating time, that is, a time during which the heater is operated in step S302-2.

S302-4, controlling the split flow pump to operate in a first working state.

The description of the operation of the split pump in the first operation state may be referred to the above description of step S301-4, and will not be repeated here.

S302-5, acquiring the turbidity value of the water in the sewage storage cavity.

The description of step S302-5 may refer to the related description of step S301-5, which is not repeated here.

S302-6, under the condition that the turbidity value is greater than or equal to the turbidity threshold value, controlling the washing pump to stop, simultaneously controlling the shunt pump to operate in a second working state, and controlling the drainage pump to act.

The description of step S302-6 may refer to the related description of step S301-6, which is not repeated here.

S302-7, controlling the action of the washing pump under the condition that the turbidity value is smaller than the turbidity threshold value, simultaneously controlling the shunt pump to operate in a first working state, and controlling the drainage pump to stop.

The description of step S302-7 may refer to the related description of step S301-7, which is not repeated here.

S302-8, acquiring the water level height.

The description of step S302-8 may refer to the related description of step S301-8, which is not repeated here.

S302-9, controlling the inlet valve to be opened under the condition that the water level is smaller than the first water level threshold value.

The description of step S302-9 may refer to the related description of step S301-9, and will not be repeated here.

S302-10, controlling the water inlet valve to be closed under the condition that the water level is greater than or equal to the first water level threshold value.

The description of step S302-10 may refer to the related description of step S301-10, which is not repeated here.

S302-11, acquiring a temperature value of water in the water tank.

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

S302-12, controlling the heater to work under the condition that the temperature value of the water in the water tank is smaller than a first temperature threshold value.

It will be appreciated that in the event that the temperature value of the water in the sink is determined to be less than the first temperature threshold, which means that the water temperature in the sink is too low, it is difficult for stubborn stains on the surface of the cutlery to dissolve and peel, for example lard on the surface of the cutlery, the computer board may control the heater to act so that the temperature value of the water in the sink rises to reach the first temperature threshold.

S302-13, controlling the heater to be closed and controlling the circulating pump to act under the condition that the temperature value of the water in the water tank is larger than or equal to the first temperature threshold value.

In the case where it is determined that the temperature value of the water in the water tank is greater than or equal to the first temperature threshold, the heater is controlled to be turned off, and meanwhile, the description of controlling the operation of the circulation pump may refer to the description related to step S302-2, which is not repeated herein.

S302-14, after the main washing stage is finished, the washing pump and the shunt pump are controlled to stop running, and the drainage pump is controlled to act.

The description of step S302-14 may refer to the related description of step S301-11, which is not repeated here.

S302-15, controlling the drainage pump to stop.

The description of step S302-15 may refer to the related description of step S301-12, and will not be repeated here.

S303, a transition stage.

In some embodiments, the washing pump is used to spray water out through the spray arm to wash the surface of the dishes, and the description of the transition stage may be referred to the description of the pre-washing stage in step S301, which is not repeated herein.

S304, a hot rinsing stage.

In some embodiments, after the water in the water tank is heated mainly by the heater, the water in the water tank is sprayed out by the washing pump through the spray arm to clean and disinfect the tableware, as shown in fig. 15, the hot rinsing stage may be specifically implemented as the following steps:

S304-1, executing the water inlet action of the dish washing machine.

The description of step S304-1 may refer to the related description of step S302-1, which is not repeated here.

S304-2, controlling the action of the washing pump.

It should be understood that the washing pump includes circulating pump and heater, and the computer board can control the heater work earlier in the main stage of washing to the temperature value of water in the real-time supervision basin, and under the circumstances that the temperature value of water in the basin is greater than or equal to second temperature threshold value, the computer board control heater closes, and the action of circulating pump is simultaneously controlled, pumps the water pump in the basin into the inner bag in order to drive to the spray arm for the spray arm can spray water and wash the tableware surface.

The temperature value of the water in the water tank is obtained by a temperature sensor and sent to the computer board, and the second temperature threshold value can be preset when the dish-washing machine leaves the factory or can be user-defined, for example, the second temperature threshold value can be 70 ℃, 80 ℃ or 90 ℃.

S304-3, adding a brightening agent.

In some embodiments, after the washing pump is operated for a second preset time, the computer board can control the dispenser to deliver the brightening agent, so that the brightening agent is beneficial to brightening the surface of the tableware, the washed tableware is clean and bright, and the user experience is improved.

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 may be understood as a second heating time, that is, a time during which the heater is operated in step S304-2.

S304-4, controlling the split pump to operate in a first working state.

The description of step S304-4 may refer to the related description of step S302-4, which is not repeated here.

S304-5, after the hot rinsing stage is finished, controlling the washing pump to stop running, controlling the drainage pump to act, and controlling the diversion pump to keep running in a first working state.

For the description of controlling the operation of the washing pump and the draining pump, reference may be made to the description of the step S302-14, and the description is omitted herein.

It will be appreciated that controlling the diverter pump to operate in the first operating condition allows water in the sump to flow into the dirt storage chamber and then out of the dirt storage chamber.

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

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. The description of the control of the drain pump stop may be referred to the related description in the above step S302-15, and will not be repeated here.

It should be understood that the split pump is a centrifugal pump, in daily use, the air-binding effect of the split pump is unavoidable, the air-binding effect can cause residual water in the liner, and the split pump still continues to act for a third preset time after the drainage pump stops acting, so that the residual water in the liner can be transferred to the dirt storage cavity, and the residual water is prevented from directly contacting with tableware in the liner, so that secondary pollution is caused.

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

S305, a drying stage.

In some embodiments, the drying stage is primarily accomplished by using a heater and/or fan assembly to dry the surface of the cutlery.

The embodiment of the present application further provides an electronic device, as shown in fig. 16, where the electronic device 160 includes: one or more processors 1601; one or more memories 1602, wherein the one or more memories 1602 are configured to store computer program code, including computer instructions; the one or more processors 1601, when executing computer instructions, cause the electronic device 160 to perform the various steps of the methods shown in the method embodiments described above.

The foregoing is merely illustrative of specific embodiments of the present application, and the scope of the present application is not limited thereto, but any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (10)

1. A dishwasher, comprising:

an inner container;

the water tank is communicated with the inner container, and a plane filter screen is arranged at the communication part of the water tank and the inner container;

the washing pump is communicated with the water tank and the inner container;

the sewage storage chamber is provided with a sewage storage cavity, a circulating inlet, a circulating outlet and a sewage outlet, wherein the circulating inlet, the circulating outlet and the sewage outlet are communicated with the sewage storage cavity, and a sewage filter screen positioned at the circulating outlet is arranged in the sewage storage chamber;

the split-flow pump is communicated with the water tank and the circulating inlet of the dirt storage cavity and comprises a first working state and a second working state;

the drainage pump is communicated with the sewage outlet and the outside;

the turbidity sensor is used for detecting the turbidity value of the water in the sewage storage cavity;

a controller connected to each of the wash pump, the split pump, the drain pump, and the turbidity sensor, the controller configured to:

Controlling the action of the washing pump to pump the water in the water tank into the inner container to wash tableware;

acquiring a turbidity value of water in the sewage storage cavity;

when the turbidity value is smaller than the turbidity threshold value, controlling the split flow pump to operate in the first working state, pumping water in the water tank into the sewage storage cavity through the circulating inlet, and enabling the water in the sewage storage cavity to enter the water tank after being filtered through the circulating outlet and the sewage filter screen;

controlling the washing pump to stop in the case that the turbidity value is greater than or equal to a turbidity threshold value; controlling the split-flow pump to run in the second working state, so that the circulating inlet is closed; and controlling the drainage pump to act, closing the circulation outlet, and draining the water in the sewage storage cavity to the outside.

2. The dishwasher of claim 1, further comprising:

the first water flow check tongue piece is rotationally connected with the dirt storage chamber, is positioned in the dirt storage cavity and is arranged at the circulating inlet;

the second water flow check tongue piece is rotationally connected with the dirt storage chamber, is positioned in the water tank and is arranged at the circulating outlet;

When the split flow pump runs in the first working state, the first water flow check tongue piece opens the circulating inlet under the impact of water flow output by the split flow pump, and the second water flow check tongue piece opens the circulating outlet under the action of water pressure in the sewage storage cavity;

when the split flow pump runs in the second working state, negative pressure is formed at the circulating inlet, and the first water flow check tongue piece closes the circulating inlet under the action of the negative pressure at the circulating inlet;

under the action of the drainage pump, negative pressure is formed in the sewage storage cavity, and the second water flow non-return tongue piece closes the circulation outlet under the action of the negative pressure in the sewage storage cavity.

3. The dishwasher of claim 2, wherein the tub includes a first cavity and a second cavity, the tub being internally provided with a fine filter connected to the tub and separating the first and second cavities; the first cavity is communicated with the liner and the washing pump, the second cavity is communicated with the split-flow pump, and the second water flow check tongue piece is arranged in the first cavity.

4. The dishwasher of claim 2, wherein the washing process of the dishwasher comprises a pre-wash stage, a main wash stage, a hot rinse stage and a dry stage, which are sequentially operated;

the controller is used for acquiring the turbidity value of the water in the sewage storage cavity and is specifically configured to:

acquiring a target stage of the dishwasher in a washing process, wherein the target stage comprises the pre-washing stage and the main washing 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 of claim 4, characterized in that the dishwasher washing process further comprises a transition phase, which follows the main wash phase and which precedes the hot rinse phase;

the target phase also includes the transition phase.

6. The dishwasher of claim 4 or 5, further comprising a water inlet valve connected to the controller and a water level detector connected to the inner container, the water level detector for detecting a water level of water in the inner container;

the controller is further configured to:

Acquiring the water level height;

controlling the water inlet valve to be opened under the condition that the water level height is smaller than a first water level height threshold value;

and controlling the water inlet valve to be closed under the condition that the water level is greater than or equal to the first water level threshold value.

7. The dishwasher of claim 4 or 5, wherein the controller is further configured to:

after the current target stage is finished, controlling the washing pump and the shunt pump to stop running, and controlling the drainage pump to act;

under the condition that the washing pump and the shunt pump stop running and the drainage pump acts, negative pressure is formed in the dirt storage cavity, the second water flow check tongue piece closes the circulation outlet under the action of the negative pressure in the dirt storage cavity, and the first water flow check tongue piece opens the circulation inlet under the action of the negative pressure in the dirt storage cavity.

8. A method of controlling a dishwasher, characterized in that the method is applied to a dishwasher as claimed in any one of the preceding claims 1 to 7, the method comprising:

controlling a washing pump to act, and pumping water in a water tank into the inner container to wash tableware;

acquiring a turbidity value of water in the sewage storage cavity;

When the turbidity value is smaller than the turbidity threshold value, controlling a diverting pump to operate in a first working state, pumping water in the water tank into the sewage storage cavity through a circulating inlet, and enabling the water in the sewage storage cavity to enter the water tank after passing through a circulating outlet and being filtered by a sewage filter screen;

controlling the washing pump to stop in the case that the turbidity value is greater than or equal to a turbidity threshold value; controlling the split-flow pump to operate in a second working state, so that the circulating inlet is closed; and controlling the action of the drainage pump to enable the circulation outlet to be closed, and draining the water in the sewage storage cavity to the outside.

9. The method of claim 8, wherein the obtaining the turbidity value of the water in the dirt holding chamber comprises:

acquiring a target stage of the dish washer in a washing process, wherein the target stage comprises a pre-washing stage and a main washing 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, wherein the method further comprises:

acquiring the water level height;

controlling the water inlet valve to be opened under the condition that the water level height is smaller than a first water level height threshold value;

And controlling the water inlet valve to be closed under the condition that the water level is greater than or equal to the first water level threshold value.