Control method of washing equipment and washing equipment

Abstract

The invention discloses a control method of washing equipment and the washing equipment. The control method of the washing equipment comprises the steps that the time interval between the end of last washing and the start of next washing of the washing equipment is obtained, and if the time interval is larger than set time, an emptying program for emptying the detergent in the putting box is executed before the start of next washing. By means of the arrangement, the detergent which is contained in the putting box for a long time and has low activity can be emptied before next washing of the washing equipment is started, so that new detergent with high activity can be recontained in the putting box, and the situation that the washing effect on clothes is reduced due to the fact that the activity of the detergent is reduced is avoided; the user experience can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and specifically relates to a control method for a washing device and a washing device. Background Art

[0002] A washing device is a device that uses the power of a motor to rotate a rotating drum and a pulsator to perform operations such as washing, rinsing, and dehydration. After putting washing water, detergent, and laundry into the rotating drum, the rotating drum stirs the washing water, detergent, and laundry, and uses the friction between the laundry and the washing water dissolved with the detergent and the rotating drum to perform washing. An existing washing device is provided with a dosing box and a water inlet valve. The dosing box is connected to the inside of the washing device through a pipeline in series with the water inlet valve. The dosing box contains detergent, and the incoming water of the water inlet valve flushes the detergent in the dosing box into the inside of the washing device, so as to realize the delivery of the detergent in the dosing box into the inside of the washing device.

[0003] Currently, before putting detergent into the dosing box, the user will unpack the detergent and put it into the dosing box; after putting detergent into the dosing box, there is often some remaining detergent in the dosing box. If the remaining detergent is not used up within a certain period of time, the activity of the detergent will be reduced. When the remaining detergent with reduced activity is used for the next washing, the washing effect on the clothes will be reduced.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a control method for a washing device and a washing device. By emptying the detergent with reduced activity that has been in the dosing box for a long time before the next laundry of the washing device starts, new and highly active detergent can be reloaded into the dosing box, so as to avoid the situation that the washing effect on clothes is reduced due to the reduced activity of the detergent, and the purpose of improving the user experience can be achieved.

[0006] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is:

[0007] The present invention provides a control method for a washing device. The washing device is provided with a dosing box. Obtain the time interval between the end of the last laundry and the start of the next laundry of the washing device. If the time interval is greater than the set time, execute an emptying program to empty the detergent in the dosing box before the start of the next laundry.

[0008] Further, the washing device is provided with a water inlet valve and a drain valve. The emptying program includes: opening the water inlet valve and the drain valve, flushing the detergent in the dosing box into the washing device through the incoming water of the water inlet valve to form a mixed liquid, and discharging the mixed liquid to the outside through the drain valve.

[0009] Further, the way for the water inlet valve to flush the detergent in the dosing chamber includes: the water inlet of the water inlet valve flushes the detergent coming out of the dosing chamber into the washing device to form a mixture, or the water inlet of the water inlet valve flushes the detergent in the dosing chamber into the washing device to form a mixture during the process that the water inlet of the water inlet valve flows through the dosing chamber.

[0010] Further, according to the opening time or the number of opening times of the water inlet valve, it is judged whether the detergent in the dosing chamber has been emptied;

[0011] When the opening time of the water inlet valve reaches the set opening time or the number of opening times reaches the set number of opening times, it is determined that the detergent in the dosing chamber has been emptied. After emptying the detergent in the dosing chamber, the water inlet valve and the drain valve are closed.

[0012] Further, according to the remaining amount and / or viscosity of the detergent in the dosing chamber, at least one of the opening time of the water inlet valve, the number of opening times, and the opening and closing modes of the water inlet valve and the drain valve is determined.

[0013] Further, if the remaining amount of the detergent in the dosing chamber is less than or equal to the set remaining amount and the viscosity of the detergent is less than or equal to the set viscosity, when the emptying program is executed, the water inlet valve and the drain valve are opened simultaneously. After the water inlet valve is opened for the first time, the water inlet valve and the drain valve are closed simultaneously.

[0014] Further, if the remaining amount of the detergent in the dosing chamber is greater than the set remaining amount and the viscosity of the detergent is less than or equal to the set viscosity, when the emptying program is executed, the water inlet valve and the drain valve are opened simultaneously. After the water inlet valve is opened for the second time which is greater than the first time, the water inlet valve is closed first, and then the drain valve is closed after the water inlet valve is closed for the third time.

[0015] Further, if the remaining amount of the detergent in the dosing chamber is greater than the set remaining amount and the viscosity of the detergent is greater than the set viscosity, when the emptying program is executed, the water inlet valve is opened, and the motor of the washing device is controlled to rotate. After the water inlet valve is opened for the fourth time which is greater than the second time, the motor is controlled to stop rotating, and the drain valve is opened. After the mixture in the washing device is emptied, the drain valve is closed.

[0016] Further, if the time interval is less than or equal to the set time, or if the time interval is greater than the set time and the remaining amount of the detergent in the dosing chamber is less than or equal to the set minimum remaining amount, the emptying program does not need to be executed before the next laundry starts, and the washing program is directly executed.

[0017] The present invention also provides a washing device, which adopts the control method of the washing device provided by the above technical solution.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0019] By emptying the detergent with reduced activity that has been stored in the dosing box for a long time before the next laundry cycle of the washing device, new detergent with higher activity can be reloaded into the dosing box, avoiding a reduction in the washing effect on clothes caused by the reduced activity of the detergent and enhancing the user experience.

[0020] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings. Description of the Drawings

[0021] As part of the present invention, the accompanying drawings are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof are used to explain the present invention but do not unduly limit the present invention. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0022] Figure 1 is a flowchart of the control method of the washing device provided by the embodiment of the present invention.

[0023] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Specific Embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The present invention provides a control method for a washing device. A dosing box is provided on the washing device. The time interval between the end of the last laundry and the start of the next laundry of the washing device is obtained. If the time interval is greater than a set time, a cleaning program for emptying the detergent in the dosing box is executed before the start of the next laundry.

[0028] In an embodiment of the present invention, through the above settings, it is possible to empty the detergent with reduced activity that has been stored in the dosing box for a long time before the start of the next laundry of the washing device, so that the dosing box can be refilled with new detergent with higher activity, avoiding the situation where the washing effect on clothes is reduced due to the reduced activity of the detergent, and improving the user experience.

[0029] The washing device can be a drum washing machine or a pulsator washing machine. When the washing device is a drum washing machine, the drum washing machine includes a housing, an outer tub, and an inner tub rotatably disposed within the outer tub. During washing, the inner tub is the water-containing tub or the outer tub is the water-containing tub;

[0030] The dosing box is disposed within the housing as an internal dosing. The dosing box is communicated with the water-containing tub through a pipeline. Alternatively, the dosing box is disposed outside the housing as an external dosing, and the dosing box is communicated with the water-containing tub through a pipeline passing through the housing.

[0031] The dosing box refers to a device for storing detergent. During the operation of the drum washing machine, the corresponding detergent in the dosing box can be dispensed into the washing tub through an automatic dosing device for washing clothes. The detergent can include laundry detergent, fabric softener, special agent, and other cleaning agents required during the clothes washing process. Usually, there can be multiple compartments in the dosing box, and each compartment is used to store the corresponding detergent. For example, there are two compartments in the dosing box, namely the first compartment and the second compartment. The first compartment is used to store laundry detergent, and the second compartment is used to store fabric softener. Then, during the washing stage of the clothes, the laundry detergent in the first compartment is dispensed into the washing tub, and during the rinsing stage of the clothes, the fabric softener in the second compartment is dispensed into the washing tub. Emptying the dosing box means emptying the detergent in each compartment of the dosing box. For example, when there is remaining laundry detergent in the first compartment and remaining fabric softener in the second compartment, first empty the laundry detergent in the first compartment, and then empty the fabric softener in the second compartment.

[0032] If the time interval between the end of the last wash of the washing device and the start of the next laundry is less than or equal to the set time, there is no need to execute the emptying program before the start of the next laundry, and the washing program is directly executed.

[0033] After determining that the time interval is greater than the set time, before executing the emptying program, first detect whether there are clothes in the washing device. If there are, first take out the clothes from the washing device, and then execute the emptying program.

[0034] In an embodiment of the present invention, the washing device is provided with a water inlet valve and a drain valve. The emptying process includes: opening the water inlet valve and the drain valve, flushing the detergent in the dosing box into the washing device through the water inlet of the water inlet valve to form a mixed liquid, and discharging the mixed liquid to the outside through the drain valve.

[0035] In an embodiment of the present invention, a water inlet pipe and a drain pipe are provided on the water storage barrel of the washing device. A water inlet valve is provided on the water inlet pipe, and a drain valve is provided on the drain pipe. A liquid outlet pipe is provided at the liquid outlet of the dosing box, and a dosing pump is provided on the liquid outlet pipe. The liquid outlet of the liquid outlet pipe communicates with the water inlet pipe between the water inlet and the water outlet of the water inlet pipe. The water outlet of the water inlet pipe communicates with the water storage barrel; during dosing, the dosing pump sucks the detergent in the dosing box into the water inlet pipe. At the same time, the water inlet of the water inlet valve flushes the detergent in the water inlet pipe into the water storage barrel to form a mixed liquid;

[0036] As another embodiment of the present invention, the water inlet pipe of the washing device communicates with the water inlet of the dosing box. A liquid outlet pipe is provided at the liquid outlet of the dosing box, and the liquid outlet of the liquid outlet pipe communicates with the water storage barrel; during dosing, the water inlet of the water inlet valve flushes the detergent in the dosing box into the water storage barrel through the liquid outlet pipe during the process of flowing through the dosing box. In order to accelerate the water inlet and the detergent entering the water storage barrel through the liquid outlet pipe, therefore, a dosing pump can be provided on the liquid outlet pipe.

[0037] It should be noted that in the above two embodiments, when dosing the detergent, the opening and closing of the water inlet valve and the dosing pump are kept synchronized.

[0038] In an embodiment of the present invention, it is judged whether the detergent in the dosing box has been emptied according to the opening time or the opening times of the water inlet valve;

[0039] When the opening time of the water inlet valve reaches the set opening time or the opening times reach the set opening times, it is determined that the detergent in the dosing box has been emptied. After emptying the detergent in the dosing box, the water inlet valve and the drain valve are closed.

[0040] In an embodiment of the present invention, judging whether the detergent in the dosing box is emptied by whether the opening time of the water inlet valve reaches the set opening time or whether the opening times of the water inlet valve reach the set opening times can avoid wasting water resources due to too long opening time or too many opening times of the water inlet valve, and the situation that the detergent is not emptied cleanly due to too short opening time or too few opening times of the water inlet valve.

[0041] During dosing, if the water inlet valve adopts a continuous opening method, it is judged whether the detergent in the dosing box is emptied by whether the opening time of the water inlet valve reaches the set opening time; if the water inlet valve adopts an intermittent opening method, it is judged whether the detergent in the dosing box is emptied by whether the opening times of the water inlet valve reach the set opening times. When the water inlet valve is opened intermittently, the opening time of the water inlet valve each time is the same.

[0042] In an embodiment of the present invention, at least one of the opening time of the water inlet valve, the number of opening times, and the opening and closing modes of the water inlet valve and the drain valve is determined according to the remaining amount and / or viscosity of the detergent in the dosing box.

[0043] In an embodiment of the present invention, if the remaining amount and / or viscosity of the detergent in the dosing box is different, the opening time of the water inlet valve is different, the number of opening times of the water inlet valve is different, and the opening and closing modes of the water inlet valve and the drain valve are different. Selecting the appropriate opening time of the water inlet valve, the number of opening times of the water inlet valve, and the opening and closing modes of the water inlet valve and the drain valve can reduce water resource waste and the residue of the detergent in the dosing box or the water holding cylinder.

[0044] Generally speaking, the greater the remaining amount of the detergent and the greater the viscosity, the more washing water is needed to rinse the detergent, so the opening time of the water inlet valve will be longer, or the number of opening times of the water inlet valve will be more.

[0045] It should be noted that if the time interval is greater than the set time and the remaining amount of the detergent in the dosing box is less than or equal to the set remaining amount, then there is no need to execute the emptying program before the next laundry starts, and the washing program is directly executed.

[0046] When there is remaining laundry detergent in the first tank and remaining fabric softener in the second tank of the dosing box, the opening time of the water inlet valve is determined by the combination of the remaining amount and / or viscosity of the laundry detergent in the first tank and the remaining amount and / or viscosity of the fabric softener in the second tank. For example, if the opening time of the water inlet valve obtained according to the remaining amount and / or viscosity of the laundry detergent in the first tank is the first opening time, and the opening time of the water inlet valve obtained according to the remaining amount and / or viscosity of the fabric softener in the second tank is the second opening time, then the opening time of the water inlet valve when emptying the detergent in the dosing box is the sum of the first opening time and the second opening time. Similarly, the number of opening times of the water inlet valve is also determined by the combination of the remaining amount of the laundry detergent in the first tank and the remaining amount of the fabric softener in the second tank.

[0047] As an embodiment of the present invention, if the remaining amount of the detergent in the dosing box is less than or equal to the set remaining amount and the viscosity of the detergent is less than or equal to the set viscosity, when executing the emptying program, the water inlet valve and the drain valve are opened simultaneously, and after the water inlet valve is opened for the first time, the water inlet valve and the drain valve are closed simultaneously.

[0048] When the remaining amount of the detergent in the dosing box is relatively small and the viscosity of the detergent is relatively small, the detergent is relatively easy to be rinsed and less rinsing water is needed. Then the water inlet valve and the drain valve can be opened simultaneously, while flushing with water and discharging at the same time, which can not only speed up the emptying speed of the detergent but also empty the detergent relatively cleanly.

[0049] As another embodiment of the present invention, if the remaining amount of the detergent in the dispensing box is greater than the set remaining amount and the viscosity of the detergent is less than or equal to the set viscosity, when the emptying program is executed, the water inlet valve and the drain valve are opened simultaneously. After the water inlet valve is opened for a second time greater than the first time, the water inlet valve is first closed, and then the drain valve is closed after the water inlet valve is closed for a third time.

[0050] When the remaining amount of the detergent in the dispensing box is relatively large and the viscosity of the detergent is relatively small, the detergent is easily rinsed, but more rinsing water is required. Then, the water inlet valve and the drain valve can be opened simultaneously to rinse while draining water, but the rinsing time needs to be extended. Similarly, the emptying speed of the detergent can be accelerated while the detergent is emptied relatively cleanly.

[0051] Since the remaining amount of the detergent is relatively large, more foam is formed in the water storage cylinder. Excessive foam will affect the drainage of the drain valve. Therefore, the drain valve is closed after the water inlet valve is closed for a period of time, so that the mixed liquid in the water storage cylinder can be drained more cleanly.

[0052] As another embodiment of the present invention, if the remaining amount of the detergent in the dispensing box is greater than the set remaining amount and the viscosity of the detergent is greater than the set viscosity, when the emptying program is executed, the water inlet valve is opened, and the motor of the washing device is controlled to rotate. After the water inlet valve is opened for a fourth time greater than the second time, the water inlet valve is closed, the motor is controlled to stop rotating, and the drain valve is opened. After the mixed liquid in the washing device is emptied, the drain valve is closed.

[0053] The rotation of the motor of the washing device can drive the inner cylinder of the washing device to rotate, and the rotation of the inner cylinder can stir the detergent and water.

[0054] When the remaining amount of the detergent in the dispensing box is relatively large and the viscosity of the detergent is relatively large, the detergent is not easily rinsed, and more rinsing water is required. Then, when the water inlet valve is opened, the motor is controlled to rotate to fully mix the detergent and water in the water storage cylinder, and the rinsing time is extended. After the rinsing is completed, the drain valve is opened to allow the detergent and water to stay in the water storage cylinder for a period of time to fully mix. After full mixing, the mixture is drained, and the emptying speed of the detergent can be accelerated while the detergent is emptied relatively cleanly.

[0055] Since foam is generated in the water storage cylinder during the rotation of the motor, the foam between the inner cylinder or between the inner and outer cylinders can be defoamed by heating the inner cylinder wall, and at the same time, the dissolution ability of the detergent in water can be improved. The inner cylinder wall with a heating temperature can heat the foam in the inner cylinder or between the inner and outer cylinders that is agitated due to the rotation of the inner cylinder, increasing the internal pressure of the foam, causing the foam to break, and thus achieving defoaming of the foam, which can avoid the phenomenon of foam overflow.

[0056] During the process of opening the water inlet valve, heat the inner barrel wall and detect the temperature of the inner barrel wall. If the temperature of the inner barrel wall is lower than the set temperature, heat the inner barrel wall. When the temperature of the inner barrel wall equals the set temperature, stop heating the inner barrel wall to keep the inner barrel wall at a certain temperature for heating the incoming water.

[0057] The heating temperature of the inner barrel wall and the rotation speed of the motor are determined according to the viscosity of the detergent. The greater the viscosity of the detergent, the greater the heating temperature of the inner barrel wall and the rotation speed of the motor. For example, if the viscosity of the detergent is the first viscosity, the heating temperature of the inner barrel wall is the first temperature and the rotation speed of the motor is the first rotation speed. If the viscosity of the detergent is the second viscosity greater than the first viscosity, the heating temperature of the inner barrel wall is the second temperature greater than the first temperature and the rotation speed of the motor is the second rotation speed greater than the first rotation speed.

[0058] Heat the inner barrel wall by setting a heating device on the inner barrel wall. The heating device can be an electromagnetic heating device, an infrared heating device, etc.

[0059] In addition, if the remaining amount of the detergent in the dosing chamber is less than or equal to the set remaining amount and the viscosity of the detergent is greater than the set viscosity, when executing the emptying program, open the water inlet valve and control the motor of the washing device to rotate. After the water inlet valve is opened for a fifth time which is greater than the second time and less than the fourth time, control the motor to stop rotating and open the drain valve. After draining the mixed liquid in the washing device, close the drain valve.

[0060] After the detergent is emptied, the washing machine can enter the standby state, so that the user can choose to enter the clothing washing mode. During the process of emptying the dosing chamber, if the user wants to end the emptying process, it can be ended through the corresponding trigger operation. That is to say, in response to the end cleaning trigger operation of the detergent box, the washing machine will end this process and return to the standby state. In addition, during the emptying process of the dosing chamber, the status display area of the washing machine can display the identification information indicating that the dosing chamber cleaning is in progress. If during the cleaning process of a certain slot of the dosing chamber, the status display area of the washing machine can display the identification information indicating that the cleaning of the corresponding slot of the dosing chamber is in progress.

[0061] As Figure 1 shown, the specific steps of the control method of the washing device of the present invention are as follows:

[0062] S1. Obtain the time interval between the end of the last laundry and the start of the next laundry of the washing device, and execute step S2;

[0063] S2. Judge whether the time interval is greater than the set time. If so, execute step S3. If not, execute step S9;

[0064] S3. Judge whether the remaining amount of the detergent is greater than the set minimum remaining amount. If so, execute step S4. If not, execute step S9;

[0065] S4. Determine whether the remaining amount of detergent in the dispensing box is greater than the set remaining amount. If so, execute step S5 or S6; if not, execute step S7 or S8;

[0066] S5. When the viscosity of the detergent is greater than the set viscosity, open the water inlet valve, control the motor to rotate. After the water inlet valve is opened for the fourth time, close the water inlet valve, stop the motor from rotating, and open the drain valve;

[0067] S6. When the viscosity of the detergent is less than or equal to the set viscosity, open the water inlet valve and the drain valve. After the water inlet valve is opened for the second time, first close the water inlet valve, and then close the drain valve after the water inlet valve is closed;

[0068] S7. When the viscosity of the detergent is greater than the set viscosity, open the water inlet valve, rotate the motor. After the water inlet valve is opened for the fifth time, close the water inlet valve, stop the motor from rotating, and open the drain valve;

[0069] S8. When the viscosity of the detergent is less than or equal to the set viscosity, open the water inlet valve and the drain valve. After the water inlet valve is opened for the first time, close the water inlet valve and the drain valve simultaneously;

[0070] S9. Do not empty the detergent in the dispensing box before the next laundry starts.

[0071] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the technical solution scope of the present invention, can make some changes or modifications to the above-mentioned technical content to make equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A control method for a washing device, wherein a dosing box is provided on the washing device, characterized in that, Obtain the time interval between the end of the last laundry and the start of the next laundry of the washing device. If the time interval is greater than the set time, then execute the emptying program to empty the detergent in the dosing box before the start of the next laundry.

2. The control method according to claim 1, wherein The washing device is provided with a water inlet valve and a drain valve. The emptying program includes: opening the water inlet valve and the drain valve, flushing the detergent in the dosing box into the washing device through the water inlet of the water inlet valve to form a mixed liquid, and discharging the mixed liquid to the outside through the drain valve.

3. The control method according to claim 2, wherein The way of flushing the detergent in the dosing box by the water inlet of the water inlet valve includes: the water inlet of the water inlet valve flushes the detergent coming out of the dosing box into the washing device to form a mixed liquid, or the water inlet of the water inlet valve flushes the detergent in the dosing box into the washing device to form a mixed liquid during the process of the water inlet flowing through the dosing box.

4. The control method according to claim 3, wherein Judge whether the detergent in the dosing box has been emptied according to the opening time or the number of opening times of the water inlet valve; When the opening time of the water inlet valve reaches the set opening time or the number of opening times reaches the set number of opening times, it is determined that the detergent in the dosing box has been emptied. After emptying the detergent in the dosing box, close the water inlet valve and the drain valve.

5. The control method according to any one of claims 1-4, characterized in that Determine at least one of the opening time of the water inlet valve, the number of opening times, and the opening and closing modes of the water inlet valve and the drain valve according to the remaining amount and / or viscosity of the detergent in the dosing box.

6. The control method according to claim 5, wherein If the remaining amount of the detergent in the dosing box is less than or equal to the set remaining amount and the viscosity of the detergent is less than or equal to the set viscosity, when executing the emptying program, open the water inlet valve and the drain valve at the same time. After the water inlet valve is opened for the first time, close the water inlet valve and the drain valve at the same time.

7. The control method according to claim 5, characterized in that If the remaining amount of the detergent in the dosing box is greater than the set remaining amount and the viscosity of the detergent is less than or equal to the set viscosity, when executing the emptying program, open the water inlet valve and the drain valve at the same time. After the water inlet valve is opened for the second time which is greater than the first time, first close the water inlet valve, and then close the drain valve after the water inlet valve is closed for the third time.

8. The control method according to claim 5, wherein If the remaining amount of the detergent in the dosing box is greater than the set remaining amount and the viscosity of the detergent is greater than the set viscosity, when executing the emptying program, open the water inlet valve and control the motor of the washing device to rotate. After the water inlet valve is opened for the fourth time which is greater than the second time, close the water inlet valve, control the motor to stop rotating, and open the drain valve. After emptying the mixed liquid in the washing device, close the drain valve.

9. The control method according to any one of claims 1-8, characterized in that If the time interval is less than or equal to the set time, or if the time interval is greater than the set time and the remaining amount of the detergent in the dosing box is less than or equal to the set minimum remaining amount, there is no need to execute the emptying program before the start of the next laundry, and directly execute the washing program.

10. A washing device, characterized in that, Adopt the control method of the washing device according to any one of claims 1-9.

Images