WO2021077534A1

WO2021077534A1 - Laundry treatment device, drainage control method therefor, apparatus and storage medium

Info

Publication number: WO2021077534A1
Application number: PCT/CN2019/121330
Authority: WO
Inventors: 张涛; 李亚东; 周翔宇; 陈洁
Original assignee: 无锡小天鹅电器有限公司
Priority date: 2019-10-21
Filing date: 2019-11-27
Publication date: 2021-04-29
Also published as: CN112695493A; CN112695493B

Abstract

Disclosed are a laundry treatment device, a drainage control method therefor, an apparatus and a storage medium. The method comprises: controlling a drainage pump of a laundry treatment device to operate in a first mode, wherein in the first mode, the drainage pump acts on the basis of a water level detection value of the water level in the laundry treatment device; and when a continuous operation duration corresponding to the drainage pump reaches or exceeds a set value, controlling the drainage pump to operate in a second mode, wherein in the second mode, the drainage pump cyclically operates at a first start-stop ratio, and the first start-stop ratio is the ratio of the operation duration to the stop duration in one cycle. In the embodiments of the present invention, the continuous operation duration of the drainage pump caused by water level detection failure may be effectively shortened, thereby reducing the operating noise of the drainage pump, and preventing heat and other damage caused by the drainage pump due to an excessively long continuous operation duration, which is advantageous in extending the service life of the drainage pump.

Description

Clothes treatment equipment and its drainage control method, device and storage medium

Cross-references to related applications

This application is based on a Chinese patent application with an application number of 201911000725.X and an application date of October 21, 2019, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this application.

Technical field

The present invention relates to the field of clothes treatment equipment control, in particular to a clothes treatment equipment and a drainage control method, device and storage medium thereof.

Background technique

For clothes treatment equipment with upper drainage, for example, during the dehydration process of a washing machine, the water is discharged after being lifted to a certain height by a drain pump. Since the drain pump needs work to discharge the water during the draining process, noise will be generated. In the related art, in order to effectively improve the noise during the operation of the drain pump, the water level value in the laundry treatment equipment is collected, and the action of the drain pump is controlled according to the water level value. If the water level detection device that detects the water level fails, and the water level is still misjudged that the water level meets the requirements when the water level does not meet the requirements, it may cause the drainage pump to work for a long time. The service life of the drain pump.

Summary of the invention

In view of this, the embodiments of the present invention provide a laundry treatment device and its drainage control method, device and storage medium, aiming to reduce the working noise of the drainage pump and prolong the service life of the drainage pump.

The technical solution of the embodiment of the present invention is realized as follows:

The embodiment of the present invention provides a method for controlling drainage of a laundry treatment device, including:

Controlling the drain pump of the laundry treatment device to work in a first mode, wherein, in the first mode, the drain pump acts based on a water level detection value of the water level in the laundry treatment device;

If the continuous operation time corresponding to the drain pump reaches or exceeds the set value, the drain pump is controlled to work in the second mode. In the second mode, the drain pump operates in a first on-stop ratio cycle, The first start-to-stop ratio is the ratio of the running time to the stop time in one cycle.

The embodiment of the present invention also provides a dehydration control device for a laundry treatment equipment, including:

The first control module is configured to control the drain pump of the laundry treatment device to work in a first mode, wherein, in the first mode, the drain pump acts based on the water level detection value of the water level in the laundry treatment device ；

The second control module is configured to control the drain pump to work in the second mode if the continuous operation duration corresponding to the drain pump reaches or exceeds the set value. In the second mode, the drain pump operates in the first mode. A start-stop ratio cyclic operation, the first start-stop ratio is the ratio of the running time to the stop time in one cycle.

The embodiment of the present invention further provides a clothing treatment device, including: a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the present invention when the computer program is running. Steps of the method described in any of the embodiments.

The embodiment of the present invention also provides a storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in any embodiment of the present invention are implemented.

According to the technical solution provided by the embodiment of the present invention, the drainage pump of the laundry treatment device is controlled to work in the first mode. In the first mode, the drainage pump operates based on the water level detection value of the water level in the laundry treatment device to ensure drainage. When the pump is turned on, the water level in the laundry treatment equipment meets the requirements of the set water level threshold, which effectively avoids the operation of the drainage pump in a semi-vapor state, which is beneficial to reduce noise; in addition, if the continuous operation time corresponding to the drainage pump reaches or exceeds Set a numerical value to control the drainage pump to work in the second mode. In the second mode, the drainage pump circulates at the first on-stop ratio, which can effectively reduce the continuous operation of the drainage pump due to water level detection failure Time length, thereby reducing the working noise of the drainage pump, and avoiding damages such as heat caused by the continuous working time of the drainage pump for too long, which is beneficial to prolonging the service life of the drainage pump.

Description of the drawings

FIG. 1 is a schematic flowchart of a method for controlling drainage of a laundry treatment device according to an embodiment of the present invention;

2 is a schematic diagram of the control principle of a method for controlling drainage of a laundry treatment device according to an application embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a drainage control device for a laundry treatment equipment according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a laundry treatment device according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present invention. Those of ordinary skill in the art have not made All other embodiments obtained under the premise of creative work belong to the protection scope of the present invention.

In the following description, “some embodiments” are referred to, which describe a subset of all possible embodiments, but it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments, and Can be combined with each other without conflict.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

In the related art, in order to effectively improve the noise during the operation of the drainage pump, the water level in the laundry treatment equipment (such as the water level in the washing tub of the washing machine, the water level in the dryer water box) is collected, and the water level is detected according to the water level. Control the action of the drain pump. For example, due to the upper drainage structure, the water in the drainage pump body cannot be completely discharged. The drainage pump is in a semi-vapor state (that is, the pump body of the drainage pump is not full of water) in the late stage of dehydration, and the impeller is in a semi-vapor state. High-speed rotation and flapping the water surface will produce louder noise. Based on this, the action of the drain pump is controlled according to the detection value of the water level. When the water level in the laundry treatment equipment reaches or exceeds the set water level threshold, the drain pump is controlled to be turned on for the set time, so as to ensure that the laundry treatment equipment is turned on when the drain pump is turned on. The water level meets the requirements of the set water level threshold, which effectively avoids the operation of the drainage pump in a semi-vapor state, which is beneficial to reduce noise. If the water level sensor malfunctions and causes the water level detection value to be falsely reported, for example, when the water level in the laundry treatment equipment does not meet the requirements, it is still misjudged as the water level meets the requirements, which may cause the drain pump to work for a long time, and the drain pump idling produces a lot of noise In addition, the heat generated by continuous operation will affect the service life of the drainage pump.

Based on this, in various embodiments of the present invention, if the continuous operation duration corresponding to the drainage pump reaches or exceeds the set value, the drainage pump is controlled to work in the second mode. In the second mode, the The drainage pump circulates at the first on-stop ratio, which can effectively reduce the continuous working time of the drainage pump due to water level detection failure, thereby reducing the working noise of the drainage pump, and avoiding the heat and other damages caused by the continuous working time of the drainage pump. , Which helps to extend the service life of the drainage pump.

An embodiment of the present invention provides a method for controlling drainage of a laundry treatment device. As shown in FIG. 1, the method includes:

Step 101: Control the drain pump of the laundry treatment device to work in a first mode, wherein, in the first mode, the drain pump acts based on a water level detection value of the water level in the laundry treatment device.

In the embodiment of the present invention, the laundry treatment device may be a washing machine or a clothes dryer or an integrated washer-dryer. For the clothes dryer, when the clothes dryer works, the control device controls the drain pump of the clothes dryer to work in the first mode. For the washing machine, when the washing machine enters the dehydration process, the control device controls the drain pump of the washing machine to work in the first mode. For the washer-dryer, when the washing machine enters the drying process or the dehydration process, the control device controls the drain pump of the washing machine to work in the first mode.

In an embodiment, the controlling the drain pump of the laundry treatment device to work in the first mode includes:

Periodically acquiring a first water level detection value corresponding to the water level, wherein the first water level detection value two adjacent times is separated by a first time length;

If the first water level detection value reaches or exceeds a set water level threshold, controlling the drainage pump to run for a set time period;

If the corresponding water level detection value reaches or exceeds the set water level threshold at the end of the set time period, return to the step of controlling the operation of the drainage pump for the set time period;

If the corresponding water level detection value at the end of the set time period is lower than the set water level threshold value, return to the step of periodically obtaining the first water level detection value corresponding to the water level.

In this way, when the first water level detection value reaches or exceeds the set water level threshold, the drainage pump can be controlled to run continuously for the set time until the water level detection value is lower than the set water level threshold, and then periodically It is determined whether the first water level detection value exceeds or reaches the set water level threshold.

Here, the set water level threshold can be reasonably selected or determined experimentally according to the volume of the water container of the clothes treatment equipment. Taking a washing machine as an example, the set water level threshold is the value of the water level in the washing tub detected by the water level sensor when a set amount of water (such as 700 ml) is added to the washing tub of the washing machine in the factory state.

Since the start of the drain pump is often affected by voltage fluctuations, that is, under different voltage conditions, the start speed of the drain pump will be affected. Based on this, in one embodiment, the set duration is 8 seconds or more. In this way, it can be ensured that the drainage pump can work effectively and discharge a certain amount of water.

In an application example, in the first mode, the first time length is 3 seconds, and the set time length is 8 seconds, that is, the first water level detection value detected by the water level sensor is obtained every 3 seconds. If the first water level detection value reaches or Exceeding the set water level threshold, the drainage pump runs for 8 seconds, and if the corresponding water level detection value is still higher than the set water level threshold at the end of 8 seconds of operation, it will continue to run for the next set time (such as 8 seconds) until the current At the end of the set time, the corresponding water level detection value is lower than the set water level threshold, and then the first water level detection value is obtained every 3 seconds again, and based on the periodically obtained first water level detection value, it is determined whether the drainage pump needs to be turned on.

Step 102: If the continuous operation time corresponding to the drain pump reaches or exceeds the set value, control the drain pump to work in a second mode. In the second mode, the drain pump operates at a first on-stop ratio. For cyclic operation, the first start-to-stop ratio is the ratio of the running time to the stop time in one cycle.

Here, the set value is set reasonably based on the drainage experiment of the laundry treatment equipment. If the continuous operation time of the drainage pump reaches or exceeds the set value, it indicates that the water level sensor may be malfunctioning. If it continues to work in the first mode, the drainage noise will deteriorate and the drainage pump may be affected due to the long operating time. Life.

Based on this, in the embodiment of the present invention, when it is determined that the continuous operation time of the drainage pump reaches or exceeds the set value, the drainage pump is controlled to work in the second mode. In the second mode, the drainage pump operates at the first on-stop ratio. Circulation work can effectively reduce the continuous working time of the drainage pump due to water level detection failure, thereby reducing the working noise of the drainage pump, and avoiding the heat and other damages caused by the continuous working time of the drainage pump, which is beneficial to prolong the service life of the drainage pump .

In an embodiment, the controlling the drainage pump to work in the second mode includes:

Periodically acquiring a second water level detection value corresponding to the water level, wherein the second water level detection value two adjacent times is separated by a second time length;

If the second water level detection value reaches or exceeds the set water level threshold, controlling the drainage pump to work at the first on-off ratio;

If the second water level detection value is lower than the set water level threshold value, return to the step of controlling the drain pump of the laundry treatment device to work in the first mode.

Here, if the second water level detection value is lower than the set water level threshold, it indicates that the water level sensor can still detect the water level value lower than the set water level, and then returns to the first mode to control the action of the drainage pump based on the water level detection value.

In an embodiment, the second duration is greater than the first duration, and the stop duration in the first start-stop ratio reaches or exceeds the second duration. In this way, the frequency of periodically obtaining the second water level detection value in the second mode can be lower than the frequency of periodically obtaining the first water level detection value in the first mode, and the stop time of the drain pump in the second mode can be set to be longer. Long, it is beneficial to reduce noise and avoid overheating of the drain pump, thereby prolonging the service life of the drain pump.

In an application example, in the second mode, the second duration is 8 seconds, and the running duration and the stop duration in the first on-stop ratio are both set to 8 seconds.

Fig. 2 shows a schematic diagram of the control principle corresponding to the first rotation speed stage of the laundry treatment device drainage control method according to the application embodiment of the present invention. In this application embodiment, the drain pump works in the first mode, and the operation of the drain pump is controlled based on the water level detection value detected by the water level sensor. Specifically, every 3 seconds, it is judged whether the water level detection value reaches or exceeds the set water level threshold. If so, the drain pump is controlled to run for 8 seconds. When the drain pump continuously drains water for 40 seconds, the drain pump enters the second mode to work, and the drain pump According to the first start-stop ratio of running for 8 seconds and stopping for 8 seconds, it will work in a cycle. At the same time, it is judged whether the water level detection value is lower than the set water level threshold every 8 seconds. If the water level detection value is lower than the set water level threshold (ie no water State), then return to the first mode of work, that is, every 3 seconds to determine whether the water level detection value reaches or exceeds the set water level threshold, if the water level detection value reaches or exceeds the set water level threshold (that is, the state of water), control drainage The pump runs for 8 seconds, and at the end of 8 seconds, continue to judge whether the water level detection value reaches or exceeds the set water level threshold, if yes, continue to control the drainage pump to run for 8 seconds, if not, return to every 3 seconds to judge whether the water level detection value is Steps to reach or exceed the set water level threshold.

The following takes a washing machine as an example to illustrate the drainage control method of the embodiment of the present invention:

In actual application, considering that when the dehydration speed is high, the accuracy of the water level value detected by the water level sensor is reduced, and it is difficult to effectively control the operation of the drainage pump according to the water level detection value. It is possible to control the drain pump of the washing machine to work in the first mode when it is determined that the washing machine is in the first rotation speed stage of dehydration. The first speed stage refers to the dehydration speed of the washing machine being lower than the dehydration stage corresponding to the first speed value, that is, the washing machine is in the low speed dehydration phase, and the first speed value can be reasonably selected according to the preset rated speed corresponding to the washing machine .

In the first mode, the first water level detection value detected by the water level sensor of the washing machine is obtained every 3 seconds. If the first water level detection value reaches or exceeds the set water level threshold, the drain pump is controlled to be turned on for 8 seconds, and in 8 seconds At the end, judge whether the current water level detection value reaches or exceeds the set water level threshold, if yes, continue to control the drainage pump to run for 8 seconds, if not, return to every 3 seconds to judge whether the first water level detection value reaches or exceeds the set water level Threshold steps. If the continuous running time of the drain pump reaches 40 seconds, the drain pump is controlled to work in the second mode. In the second mode, the drain pump operates in a cycle with the first on-stop ratio of running for 8 seconds and stopping for 8 seconds. At the same time, every interval In 8 seconds, it is judged whether the water level detection value is lower than the set water level threshold value, and if the water level detection value is lower than the set water level threshold value (that is, the state of no water), the operation returns to the first mode.

In actual application, the washing machine drainage control method may also include:

Determine that the washing machine is in the second rotation speed stage of dehydration, and control the drain pump to operate in the third mode;

Wherein, in the second rotation speed stage, the dehydration rotation speed of the washing machine is accelerated from the first rotation speed value to a preset rated rotation speed and maintained at the preset rated rotation speed for a preset period of time, in the third mode, The drainage pump circulates at a second on-off ratio, and the second on-off ratio is the ratio of the running time to the stopping time in one cycle.

In the second rotation speed stage, because the dehydration rotation speed is higher than the corresponding dehydration rotation speed in the first rotation speed stage, as the rotation speed increases, the accuracy of the water level value detected by the water level sensor decreases, and it is difficult to reliably control the operation of the drainage pump based on the detected water level value. . In this embodiment, by controlling the drain pump to work in the third mode, it is different from controlling the drain pump according to the detected water level detection value, which can reduce the noise caused by the drain pump running in the semi-vapor state and simplify the control strategy.

Considering that each time the spin speed is accelerated, the water level in the washing tub will rise, the water in the washing tub needs to be drained in time, and it takes a certain time for the water in the washing tub to enter the drain pump.

Based on this, in an embodiment, the controlling the drainage pump to work in the third mode includes:

When it is determined that the dehydration speed is accelerated, the drain pump is controlled to periodically stop for a second stop period and then start a second operating period. The second on-stop ratio is the second operating period and the second stop period. Ratio.

By controlling the drain pump to periodically stop the second stop period and then start the second running period, the drain pump can enter the set amount of water during the second stop period, which can effectively avoid the drain pump running in a semi-vapor state, and also The water in the washing tub can be discharged in time during the second operating period to avoid air trapping and dehydration with water. In an example, the control device first controls the drain pump to stop for 5 seconds during the acceleration phase of the dehydration speed, and then controls the drain pump to start for 15 seconds, and circulates accordingly, so that the drain pump runs at an interval of 15:5 on-stop ratio. Here, the second stop duration and the second operation duration can be set according to the total dehydration duration.

In an embodiment, the washing machine dehydration control method may further include:

Determine that the washing machine is in the third rotation speed stage of dehydration, and control the drain pump to work in the fourth mode;

Wherein, the third rotation speed stage refers to the dehydration rotation speed of the washing machine after the preset rated rotation speed is maintained for a preset period of time until the completion of the dehydration. In the fourth mode, the drain pump operates in a third cycle with a third on-stop ratio. , The third start-to-stop ratio is the ratio of the running time to the stop time in one cycle.

In the third rotation speed stage, since the washing machine is in the maintenance stage of the preset rated rotation speed, and the amount of water produced by the dehydration in this stage is less, by setting the third on-off ratio to be lower than the second on-off ratio, the drain pump can be reduced Start frequency, and reduce the noise generated by the semi-vapor state of the drainage pump.

Here, the controlling the drain pump to work in the fourth mode includes:

The drain pump is controlled to periodically start a third operation period and then stop a third stop period. The third start-stop ratio is a ratio of the third operation period to the third stop period.

In an application example, the control device first controls the drain pump to start for 10 seconds, and then controls the drain pump to stop for 10 seconds, and then circulates sequentially until the dehydration ends, so that the drain pump runs at a gap of 10:10 on-stop ratio. Here, the third stop duration and the third operation duration can be set according to the total dehydration duration.

In order to implement the method in the embodiment of the present invention, an embodiment of the present invention is a dehydration control device for a laundry treatment device, as shown in FIG. 3, including:

The first control module 301 is configured to control the drain pump of the laundry treatment device to work in a first mode, wherein, in the first mode, the drain pump is based on a water level detection value of the water level in the laundry treatment device action;

The second control module 302 is configured to control the drain pump to work in the second mode if the continuous operation duration corresponding to the drain pump reaches or exceeds the set value. In the second mode, the drain pump is The first start-to-stop ratio works cyclically, and the first start-to-stop ratio is the ratio of the running time to the stop time in one cycle.

In some embodiments, the first control module 301 is specifically configured to:

In some embodiments, the second control module 302 is specifically configured to:

If the second water level detection value reaches or exceeds the set water level threshold, controlling the drainage pump and the drainage pump to work at the first on-stop ratio;

In some embodiments, the second duration is greater than the first duration, and the stop duration in the first start-stop ratio reaches or exceeds the second duration.

When the laundry treatment equipment is a washing machine, the first control module 301 is configured to control the drain pump of the washing machine to work in the first mode when the washing machine is in the first rotation speed stage of dehydration, wherein, in the In the first rotation speed stage, the spin speed of the washing machine is lower than the first rotation speed value.

In an embodiment, the device further includes:

The third control module 303 is configured to determine that the washing machine is in the second rotation speed stage of dehydration, and control the drain pump to operate in the third mode; wherein, in the second rotation speed stage, the dehydration rotation speed of the washing machine is set The first rotational speed value accelerates to a preset rated rotational speed and maintains the preset rated rotational speed for a preset period of time. In the third mode, the drain pump cyclically operates at a second on-stop ratio, and the second open The stopping ratio is the ratio of the running time to the stopping time in a cycle.

In some embodiments, the device further includes:

The fourth control module 304 is configured to determine that the washing machine is in the third rotation speed stage of dehydration, and control the drain pump to work in the fourth mode; wherein, the third rotation speed stage refers to the dehydration rotation speed of the laundry treatment device After the preset rated speed is maintained for a preset period of time until the dehydration ends, in the fourth mode, the drainage pump cyclically operates at a third on-stop ratio, and the third on-stop ratio is the same as the operating time in one cycle. The ratio of the duration of the stop.

In practical applications, the first control module 301, the second control module 302, the third control module 303, and the fourth control module 304 may be implemented by the processor in the dehydration control device of the laundry treatment equipment. Of course, the processor needs to run a computer program in the memory to realize its functions.

It should be noted that when the clothes treatment equipment dehydration control device provided in the above embodiments performs dehydration control of the clothes treatment equipment, only the division of the above-mentioned program modules is used as an example for illustration. In actual applications, the above-mentioned processing can be allocated according to needs. Different program modules are completed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the dehydration control device for a laundry treatment device provided in the foregoing embodiment belongs to the same concept as the embodiment of the dehydration control method for a laundry treatment device. For the specific implementation process, please refer to the method embodiment, which will not be repeated here.

Based on the hardware implementation of the program module described above, and in order to implement the method in the embodiment of the present invention, the embodiment of the present invention also provides a clothing treatment device. FIG. 4 only shows an exemplary structure of the device, but not the entire structure, and part of or all of the structure shown in FIG. 4 can be implemented as required.

As shown in FIG. 4, the laundry treatment device 400 provided by the embodiment of the present invention includes: at least one processor 401 and a memory 402. The processor 401 is also communicatively coupled to the water level sensor. Wherein, the water level detection sensor is used to detect the water level in the laundry treatment equipment and transmit the detected water level value to the processor 401. When the laundry treatment device 400 is a washing machine, the processor 401 is also communicatively coupled with a rotation speed sensor, which is used to detect the corresponding spin speed of the washing machine and transmit the detected spin speed to the processor 401.

The memory 402 in the embodiment of the present invention is used to store various types of data to support the operation of the laundry treatment device. Examples of such data include: any computer program used to operate on the laundry treatment equipment.

The method for controlling dehydration of a laundry treatment device disclosed in the embodiment of the present invention may be applied to the processor 401 or implemented by the processor 401. The processor 401 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the method for controlling the dehydration of the laundry treatment equipment can be completed by the integrated logic circuit of hardware in the processor 401 or instructions in the form of software. The aforementioned processor 401 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The processor 401 may implement or execute various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the memory 402. The processor 401 reads the information in the memory 402 and completes the steps of the method for controlling the dehydration of the laundry treatment device provided by the embodiment of the present invention in combination with its hardware.

In an exemplary embodiment, the laundry treatment device may be used by one or more Application Specific Integrated Circuits (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), and Complex Programmable Logic Device (CPLD). , Complex Programmable Logic Device, FPGA, general-purpose processor, controller, microcontroller (MCU, Micro Controller Unit), microprocessor (Microprocessor), or other electronic components are used to implement the foregoing method.

It can be understood that the memory 402 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM, Read Only Memory), programmable read-only memory (PROM, Programmable Read-Only Memory), and erasable programmable read-only memory (EPROM, Erasable Programmable Read- Only Memory, Electrically Erasable Programmable Read-Only Memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory , CD-ROM, or CD-ROM (Compact Disc Read-Only Memory); magnetic surface memory can be magnetic disk storage or tape storage. The volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (SRAM, Static Random Access Memory), synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), and dynamic random access memory. Memory (DRAM, Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM, Synchronous Dynamic Random Access Memory), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), enhanced Type synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), synchronous connection dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, Direct Rambus Random Access Memory) ). The memory described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

In an exemplary embodiment, the embodiment of the present invention also provides a storage medium, that is, a computer storage medium, which may specifically be a computer-readable storage medium, for example, including a memory 402 storing a computer program, which can be used by the clothing treatment device 400. Executed by the processor 401 to complete the steps described in the method in the embodiment of the present invention. The computer-readable storage medium may be a memory such as ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

It should be noted that the technical solutions described in the embodiments of the present invention can be combined arbitrarily without conflict.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. It should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A method for controlling drainage of a clothes treatment equipment, which includes:

Controlling the drain pump of the laundry treatment device to work in a first mode, wherein, in the first mode, the drain pump acts based on a water level detection value of the water level in the laundry treatment device;

The continuous operation time corresponding to the drain pump reaches or exceeds the set value, and the drain pump is controlled to work in the second mode. In the second mode, the drain pump works in a first on-stop ratio cycle, so The first start-to-stop ratio is the ratio of the running time to the stop time in one cycle.
The method for controlling drainage of a laundry treatment device according to claim 1, wherein the controlling the drainage pump of the laundry treatment device to operate in the first mode comprises:

Periodically acquiring a first water level detection value corresponding to the water level, wherein the first water level detection value two adjacent times is separated by a first time length;

If the first water level detection value reaches or exceeds a set water level threshold, controlling the drainage pump to run for a set time period;

If the corresponding water level detection value reaches or exceeds the set water level threshold at the end of the set time period, return to the step of controlling the operation of the drainage pump for the set time period;

If the corresponding water level detection value at the end of the set time period is lower than the set water level threshold value, return to the step of periodically obtaining the first water level detection value corresponding to the water level.
3. The method for controlling drainage of a laundry treatment device according to claim 2, wherein the controlling the drainage pump to operate in the second mode comprises:

Periodically acquiring a second water level detection value corresponding to the water level, wherein the second water level detection value two adjacent times is separated by a second time length;

If the second water level detection value reaches or exceeds the set water level threshold, controlling the drainage pump to work at the first on-off ratio;

If the second water level detection value is lower than the set water level threshold value, return to the step of controlling the drainage pump of the clothing treatment equipment to operate in the first mode.
The method for controlling drainage of a laundry treatment device according to claim 3, wherein:

The second duration is greater than the first duration, and the stop duration in the first start-stop ratio reaches or exceeds the second duration.
2. The method for controlling drainage of a laundry treatment device according to claim 1, wherein when it is determined that the laundry treatment device is in the first rotation speed stage of dehydration, the drain pump of the laundry treatment device is controlled to operate in the first mode, wherein In the first rotation speed stage, the dehydration rotation speed of the laundry treatment device is lower than the first rotation speed value.
8. The method for controlling drainage of a laundry treatment device according to claim 5, wherein the method further comprises:

Determine that the laundry treatment device is in the second rotation speed stage of dehydration, and control the drain pump to operate in the third mode;

Wherein, in the second rotation speed stage, the dehydration rotation speed of the laundry treatment device is accelerated from the first rotation speed value to a preset rated rotation speed and maintained at the preset rated rotation speed for a preset period of time, and in the third mode Next, the drainage pump cyclically works at a second on-off ratio, and the second on-off ratio is the ratio of the running time to the stopping time in one cycle.
7. The method for controlling drainage of a laundry treatment device according to claim 6, wherein the method further comprises:

Determining that the laundry treatment device is in the third rotation speed stage of dehydration, and controlling the drain pump to work in the fourth mode;

Wherein, the third rotation speed stage refers to the dehydration rotation speed of the washing machine after the preset rated rotation speed is maintained for a preset period of time until the completion of the dehydration. In the fourth mode, the drain pump operates in a third cycle with a third on-stop ratio. , The third start-to-stop ratio is the ratio of the running time to the stop time in one cycle.
A dehydration control device for clothes processing equipment, which includes:

The first control module is configured to control the drain pump of the laundry treatment device to work in a first mode, wherein, in the first mode, the drain pump acts based on the water level detection value of the water level in the laundry treatment device ；

The second control module is configured to control the drain pump to work in the second mode if the continuous operation duration corresponding to the drain pump reaches or exceeds the set value. In the second mode, the drain pump operates in the first mode. A start-stop ratio cyclic operation, the first start-stop ratio is the ratio of the running time to the stop time in one cycle.
A clothing treatment device, which includes: a processor and a memory for storing a computer program that can run on the processor, wherein:

The processor is configured to execute the steps of the method according to any one of claims 1 to 7 when running a computer program.
A storage medium on which a computer program is stored, wherein when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are realized.