WO2018050061A1

WO2018050061A1 - Dehydration control method for washing machine, and washing machine

Info

Publication number: WO2018050061A1
Application number: PCT/CN2017/101511
Authority: WO
Inventors: 许升; 吕艳芬; 宋华诚
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2016-09-14
Filing date: 2017-09-13
Publication date: 2018-03-22
Also published as: CN107815815B; CN107815815A

Abstract

A dehydration control method for a washing machine, and the washing machine. The dehydration control method for a washing machine comprises: monitoring whether water exists in a washing drum, and if the water exists in the washing drum, discharging water from the washing drum and monitoring the turbidity of the water; and adjusting at least one of a dehydration rotation speed and a dehydration time according to the turbidity of the water, and controlling, according to the dehydration rotation speed and the dehydration time, a washing machine to perform dehydration. When clothes are dirty or an excessively great amount of a detergent is used, more dirt and the detergent can be whirled out, thereby reducing the number of times of rinsing, saving water, and improving the cleanliness of the washed clothes.

Description

Washing machine dehydration control method and washing machine

Technical field

The present disclosure relates to the field of washing machine program control, for example, to a washing machine dehydration control method and a washing machine.

Background technique

Household washing machines include pulsator washing machines and drum washing machines. The pulsator washing machine is dehydrated before rinsing. During the dehydration process, the dehydration speed and the dehydration time are fixed. If the washing tub is greatly eccentric, it will hit the control rod to increase the rinsing and re-washing. In the case of eccentricity of the drum washing machine, the speed and time of dehydration are also fixed, and the rotation speed does not exceed the speed of the final dewatering. When a large eccentricity is detected, the dehydration before rinsing is completed by the speed reduction method. The dehydration time varies depending on the time of eccentricity detection and uniform distribution, and the effective dehydration time does not change.

Summary of the invention

The present disclosure provides a washing machine dehydration control method and a washing machine, which can control the washing machine dehydration time and the dehydration rotation speed according to the turbidity of the washing water.

A washing machine dehydration control method comprises the following steps:

After the washing is completed, monitor whether there is water in the washing tub;

In the case where there is water in the washing tub, the washing tub is drained and the turbidity of the water is monitored, and at least one of the dehydrating rotation speed and the dehydrating time is adjusted according to the turbidity of the water, and the washing machine is controlled to perform dehydration according to the dehydrating rotation speed and the dehydration time. .

Alternatively, in the case where there is no water in the washing tub, direct dehydration is performed according to a preset spin-drying speed and a dehydrating time.

Optionally, the direct dehydration comprises the following steps:

Determining the final dehydration speed in the case where the eccentricity of the washing tub does not exceed the maximum eccentricity that the washing tub can withstand;

The dehydration is carried out at the final dehydration speed as the dehydration maximum speed and according to the dehydration time set by the laundry mode.

Optionally, at least one of adjusting the spin-drying speed and the spin-drying time comprises the following steps:

According to the water turbidity, the maximum dehydration speed V _max , the dehydration time T ₀ and the rotation speed difference ΔV are set;

The final dehydration speed V is determined in the case where the eccentricity of the washing tub does not exceed the maximum eccentricity that the washing tub can withstand;

If (V _max -V) ≤ ΔV, the dehydration is performed at the final dehydration speed V and the set dehydration time T ₀ ;

If (V _max - V) > ΔV, dehydration is performed at the final deceleration speed V and the dehydration time T, which is the dehydration time T = N * T ₀ , N = V _max / V.

Optionally, the adjusting at least one of a spin speed and a spin time includes the following steps:

Setting standard water turbidity Y ₀ and turbidity difference ΔY;

Comparing the monitored value of the actual water turbidity Y with the standard water turbidity Y ₀ , and comparing the difference between the actual water turbidity Y and the standard water turbidity Y ₀ and the turbidity difference ΔY;

If Y≤Y ₀ , or (YY ₀ )≤ΔY, dehydration is performed according to the dehydration time set by the washing mode and the dehydration rotation speed V ₀ ;

If Y>Y ₀ and (YY ₀ )>ΔY, dehydration is performed according to the dehydration time set by the washing mode and the rehydration rotation speed V, which is set to dehydration speed V=N*V ₀ , N=Y/Y ₀ .

Setting standard water turbidity Y ₀ and turbidity difference ΔY;

If Y≤Y ₀ , or (YY ₀ )≤ΔY, dehydration is performed according to the dehydration rotation speed set by the washing mode and the dehydration time T ₀ ;

If Y>Y ₀ and (YY ₀ )>ΔY, the dehydration is performed according to the dehydration rotation speed set by the washing mode and the re-dewatering time T, which is the rehydration rotation speed T=N*T ₀ , N=Y/Y ₀ .

Optionally, the turbidity of the water in the wash tub is monitored by a turbidity sensor disposed within the washing machine.

Optionally, the turbidity sensor is adjacent to a drain of the washing machine.

Optionally, the presence or absence of water in the wash tub is monitored by a pressure sensor disposed at the bottom of the wash tub.

A washing machine comprising: a processor, a memory, a turbidity sensor and a pressure sensor;

The memory is configured to store a software program, a computer executable program, and a module; the turbidity sensor is configured to monitor a turbidity of water in the washing tub when the draining starts after the washing is completed; the pressure sensor is configured to monitor whether the washing tub is inside There is water; the processor is configured to perform a plurality of functional applications and data processing by executing software programs, instructions, and modules stored in the memory to implement the washing machine dehydration control method according to any one of the above.

A computer readable storage medium storing computer executable instructions for performing the above described washing machine dehydration control method.

A laundry apparatus comprising one or more processors, a turbidity sensor, a pressure sensor, a memory, and one or more programs, the one or more programs being stored in a memory when processed by one or more When the device is executed, the above-described washing machine dehydration control method is executed.

A computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are When the computer is executed, the computer is caused to execute any of the above-described washing machine dehydration control methods.

The washing machine dehydration control method provided by the present disclosure determines the rotation speed and time of dehydration by monitoring the turbidity of the water in the washing tub, and can remove more dirt and detergent when the laundry is dirty or the detergent is excessive, reducing The number of rinses saves water and improves the cleanliness of the clothes after washing. The washing machine that uses the washing machine dehydration control method provided by the present disclosure for dehydration consumes less power and meets the requirements of energy saving and environmental protection.

DRAWINGS

1 is a flow chart of a direct dehydration step in a washing machine dehydration control method according to the embodiment;

2 is a flow chart of a first mode adjustable dehydration step in the washing machine dehydration control method provided by the embodiment;

3 is a flow chart of a second mode adjustable dehydration step in the washing machine dehydration control method provided in the embodiment;

4 is a flow chart of a third mode adjustable dehydration step in the washing machine dehydration control method provided in the embodiment;

FIG. 5 is a schematic diagram of the hardware structure of a laundry device provided by this embodiment.

detailed description

The technical solutions of the present disclosure will be described below with reference to the accompanying drawings and specific embodiments.

In the related art, the spin speed and duration of the washing machine before rinsing are not changed by the degree of soiling of the laundry and the residual amount of the detergent. If the dehydration mode becomes controllable, reduce the dehydration time or the dehydration speed when the clothes are clean and the amount of detergent residue is small, or increase the dehydration time or the dehydration speed when the clothes are dirty and the detergent residue is large. Reasonable combination of consumption and washing.

The embodiment provides a washing machine dehydration control method, which comprises the following steps.

Monitoring whether there is water in the washing tub, draining the washing tub and monitoring the turbidity of the water in the case where there is water in the washing tub; adjusting at least one of the dehydrating rotation speed and the dehydrating time according to the turbidity of the water, according to the dehydration The rotation speed and dehydration time control the washing machine for dehydration. That is, the washing machine is subjected to the deceleration speed and the dehydration time to adjust the speed regulation and time dehydration.

Wherein, the water in the washing tub can be monitored by a pressure sensor disposed at the bottom of the washing tub, and the turbidity of the water can be monitored by a turbidity sensor provided in the washing machine to monitor the turbidity of the water in the washing tub when the washing is started after the washing is completed. degree. Alternatively, the turbidity sensor is located close to the drain of the washing machine so that the turbidity of the water after washing is accurately monitored. After the plurality of sensors acquire the signals, the signals are transmitted to the control system of the washing machine, and the acquired signals are processed by the control system of the washing machine.

In the case where there is no water in the washing tub, direct dehydration is performed according to the preset spin speed and the spin time. As shown in Figure 1, the direct dewatering comprises the following steps.

In step 110, it is monitored whether the washing tub is eccentric. Under the premise that the eccentricity of the washing tub is allowed, that is, if the eccentricity of the current washing tub does not exceed the maximum eccentricity that the washing tub can withstand, the final rotational speed V of the dehydration is determined. Among them, the eccentricity is the degree to which the center of gravity of the laundry in the washing tub deviates from the center of rotation.

In step 110, dehydration is performed with the dehydration final rotational speed V being the dehydration maximum rotational speed and the dehydration time set according to the laundry mode until the dehydration is completed.

If the washing tub is greatly eccentric, add a rinse to wash the laundry and then perform the direct dewatering step.

As shown in FIG. 2, a speed regulation and time dehydration method provided in this embodiment includes the following steps.

In step 210, the washing tub is drained while monitoring that there is water in the washing tub.

In step 220, the turbidity of the water is monitored by a turbidity sensor disposed within the washing machine.

In step 230, based on the maximum turbidity of the water is set dehydration speed V _max, the dehydration time period T ₀ and the rotational speed difference [Delta] V, after the user selects these parameters are automatically set by the mode laundry washing machine control system.

In step 240, it is monitored whether the washing tub is eccentric, and the final rotational speed V of the dehydration is determined on the premise that the eccentricity of the washing tub is allowed.

In step 250, it is judged whether or not the difference between the dehydration maximum rotational speed _Vmax and the dehydration final rotational speed V is equal to or smaller than the rotational speed difference ΔV.

In step 260, in the case of (V _max - V) ≤ ΔV, dehydration is performed at the final dehydration speed V and the set dehydration time T ₀ until the dehydration is completed.

In

steps

270 and 280, in the case of (V _max - V) > ΔV, the proportional parameter N = V _max / V is calculated, and the dehydration is performed by dehydrating the final rotational speed V and resetting the dehydration time T, which is dehydrated. Time T = T ₀ * N until the end of dehydration.

In the above mode, both the dehydration time and the dehydration speed are adjustable.

As shown in FIG. 3, another speed regulation and time dehydration method provided in this embodiment includes the following steps.

In step 310, the washing tub is drained while monitoring that there is water in the washing tub.

In step 320, the standard water turbidity Y ₀ and the turbidity difference ΔY are set, and the actual water turbidity Y is obtained. Wherein, the standard water turbidity Y ₀ and the turbidity difference ΔY may be automatically set by the washing machine control system after the user selects the laundry mode.

In step 330, it is determined whether the monitored actual water turbidity Y is less than or equal to the standard water turbidity Y ₀ .

In step 340, in the case of Y ≤ Y ₀ , dehydration is performed according to the dehydration time set by the washing mode and the dehydration rotation speed V ₀ until the dehydration is completed.

In step 350, in the case of Y>Y ₀ , it is judged whether or not the difference between the actual water turbidity Y and the standard water turbidity Y ₀ is equal to or smaller than the turbidity difference ΔY. In the case of (YY ₀ ) ≤ ΔY, step 340 is performed.

In step 360 and step 370, in the case of (YY ₀ )>ΔY, the proportional parameter N=Y/Y _{0 is} calculated, and dehydration is performed according to the dehydration time set by the washing mode and the rehydration rotational speed V, which is reset. The spin speed V = V ₀ * N until the end of dehydration.

In the above mode, the dehydration time is constant and the dehydration speed is adjustable.

As shown in FIG. 4, another speed-adjusting and dehydrating method provided by this embodiment includes the following steps.

In step 410, the washing tub is drained while monitoring that there is water in the washing tub.

In step 420, the standard water turbidity Y ₀ and the turbidity difference ΔY are set, and the turbidity Y of the actual water is obtained. Wherein, the standard water turbidity Y ₀ and the turbidity difference ΔY may be automatically set by the washing machine control system after the user selects the laundry mode.

In step 430, it is determined whether the monitored actual water turbidity Y is less than or equal to the standard water turbidity Y ₀ . In step 440, in the case of Y ≤ Y ₀ , dehydration is performed according to the spin-drying speed set by the washing mode and the spin-drying time T ₀ until the end of dehydration.

In step 450, if Y>Y ₀ , it is determined whether the difference between the actual water turbidity Y and the standard water turbidity Y ₀ is equal to or less than the turbidity difference ΔY. In the case of (YY ₀ ) ≤ ΔY, step 440 is performed.

In step 460 and step 470, in the case of (YY ₀ )>ΔY, the proportional parameter N=Y/Y _{0 is} calculated, and the dehydration is performed according to the dehydration rotation speed set by the laundry mode and the reset dehydration time T, the resetting The spin speed T = T ₀ * N until the end of dehydration.

In the above mode, the dehydration speed is constant and the dehydration time is adjustable.

The dehydration control method of the washing machine provided in this embodiment monitors the turbidity of the water in the washing tub, and selects any one of the dehydration time and the dehydration rotation speed, the dehydration time constant, the dehydration rotation speed is adjustable, and the dehydration rotation speed constant dehydration time is adjustable. In the method, when the clothes are dirty or the detergent is excessive, more dirt and detergent can be removed, the number of rinsing is reduced, water is saved, and the cleanliness of the clothes is improved.

The embodiment further provides a washing machine, which is dehydrated by the above-mentioned washing machine dehydration control method, can reduce the number of rinsing times, save water, consume less power, and meet the requirements of energy saving and environmental protection.

The embodiment further provides a computer readable storage medium storing computer executable instructions for executing the above-described washing machine dehydration control method.

FIG. 5 is a schematic diagram showing the hardware structure of a laundry device according to the embodiment. As shown in FIG. 5, the laundry device includes: one or more processors 510, a memory 520, a turbidity sensor 550, and a pressure sensor 560. One processor 510 is taken as an example in FIG.

The laundry device may further include an input device 530 and an output device 540.

The processor 510, the memory 520, the input device 530, and the output device 540 in the laundry device may be connected by a bus or other means, as exemplified by a bus connection in FIG.

The input device 530 can receive input numeric or character information, and the output device 540 can include a display device such as a display screen. The turbidity sensor 550 can monitor the turbidity of the water in the washing tub when the draining starts after the washing is completed, and the pressure sensor 560 can monitor whether there is water in the washing tub.

The memory 520 is a computer readable storage medium that can be used to store software programs, computer executable programs, and modules. The processor 510 executes a plurality of functional applications and data processing by executing software programs, instructions, and modules stored in the memory 520 to implement any of the above-described embodiments of the washing machine dehydration control method.

The memory 520 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the electronic device, and the like. In addition, the memory may include volatile memory such as random access memory (RAM), and may also include non-volatile memory such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device.

Memory 520 can be a non-transitory computer storage medium or a transitory computer storage medium. The non-transitory computer storage medium, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 520 can optionally include memory remotely located relative to processor 510, which can be connected to the laundry device over a network. Examples of the above networks may include the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

Input device 530 can be used to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the laundry device. The output device 540 can include a display device such as a display screen.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by executing related hardware by a computer program, and the program can be stored in a non-transitory computer readable storage medium. The program, when executed, may include the flow of an embodiment of the method as described above, wherein the non-transitory computer readable storage medium may be a magnetic disk, an optical disk, a read only memory (ROM), or a random access memory (RAM). Wait.

Industrial applicability

The washing machine dehydration control method and the washing machine provided by the disclosure, by monitoring the turbidity of the water in the washing tub, selecting the dehydration time and the dehydration rotation speed are adjustable, the dehydration time is constant, the dehydration rotation speed is adjustable, and the dehydration rotation speed is constant, the dehydration time is adjustable. Either method, when the clothes are relatively clean, the amount of detergent residue is small, the dehydration time or the spin speed is reduced, or when the clothes are dirty, the detergent residue is increased, the dehydration time or the spin speed is increased, and more dirt and The detergent is removed, the number of rinsing is reduced, the water is saved, the cleanliness of the laundry is improved, and the energy consumption and the washing are reasonably matched.

Claims

A washing machine dehydration control method comprises the following steps:

After the washing is completed, monitor whether there is water in the washing tub;

In the case where there is water in the washing tub, drain the washing tub and monitor the turbidity of the water;

At least one of the dehydration rotation speed and the dehydration time is adjusted according to the turbidity of the water, and the washing machine is controlled to perform dehydration according to the dehydration rotation speed and the dehydration time.
The method according to claim 1, wherein direct dehydration is performed according to a preset dehydration rotation speed and a dehydration time in the absence of water in the washing tub.
The method of claim 2 wherein said direct dehydration comprises the steps of:

Determining the final dehydration speed in the case where the eccentricity of the washing tub does not exceed the maximum eccentricity that the washing tub can withstand;

The dehydration is carried out at the final dehydration speed as the dehydration maximum speed and according to the dehydration time set by the laundry mode.
The method according to claim 1, wherein said adjusting at least one of a spin speed and a spin time comprises the steps of:

According to the water turbidity, the maximum dehydration speed V max , the dehydration time T 0 and the rotation speed difference ΔV are set;

The final dehydration speed V is determined in the case where the eccentricity of the washing tub does not exceed the maximum eccentricity that the washing tub can withstand;

If (V max -V) ≤ ΔV, the dehydration is performed at the final dehydration speed V and the set dehydration time T 0 ;

If (V max - V) > ΔV, dehydration is performed at the final deceleration speed V and the dehydration time T, which is the dehydration time T = N * T 0 , N = V max / V.
The method according to claim 1, wherein said adjusting at least one of a spin speed and a spin time comprises the steps of:

Setting standard water turbidity Y 0 and turbidity difference ΔY;

Comparing the monitored value of the actual water turbidity Y with the standard water turbidity Y 0 , and comparing the difference between the actual water turbidity Y and the standard water turbidity Y 0 and the turbidity difference ΔY;

If Y≤Y 0 , or (YY 0 )≤ΔY, dehydration is performed according to the dehydration time set by the washing mode and the dehydration rotation speed V 0 ;

If Y>Y 0 and (YY 0 )>ΔY, dehydration is performed according to the dehydration time set by the washing mode and the rehydration rotation speed V, which is set to dehydration speed V=N*V 0 , N=Y/Y 0 .
The method according to claim 1, wherein said adjusting at least one of a spin speed and a spin time comprises the steps of:

Setting standard water turbidity Y 0 and turbidity difference ΔY;

Comparing the monitored values of the actual water turbidity Y with the standard water turbidity Y 0 , and comparing the difference between the actual water turbidity Y and the standard water turbidity Y 0 and the turbidity difference ΔY,

If Y≤Y 0 , or (YY 0 )≤ΔY, dehydration is performed according to the dehydration rotation speed set by the washing mode and the dehydration time T 0 ;

If Y>Y 0 and (YY 0 )>ΔY, the dehydration is performed according to the dehydration rotation speed set by the washing mode and the re-dewatering time T, which is the rehydration rotation speed T=N*T 0 , N=Y/Y 0 .
The method of claim 1 wherein the turbidity of the water in the wash tub is monitored by a turbidity sensor disposed within the washing machine.
The method of claim 7 wherein said turbidity sensor is adjacent to a drain of the washing machine.
The method according to claim 1, wherein the presence or absence of water in the washing tub is monitored by a pressure sensor provided at the bottom of the washing tub.
A washing machine comprising: a processor, a memory, a turbidity sensor and a pressure sensor;

The memory is configured to store a software program, a computer executable program, and a module; the turbidity a sensor configured to monitor turbidity of water in the wash tub when draining begins after washing is completed; the pressure sensor configured to monitor for water in the wash tub; the processor being configured to run a software program stored in the memory The instruction, and the module, perform a plurality of function applications and data processing to implement the washing machine dehydration control method according to any one of claims 1 to 9.
A computer readable storage medium storing computer executable instructions for performing the method of any one of claims 1 to 9.