CN107815815A - Dewatering control method for washing machine and washing machine - Google Patents

Abstract

The invention discloses a washing machine dehydration control method and a washing machine, which belong to the field of washing machine program control. The washing machine dehydration control method selects and monitors whether there is washing water in the washing bucket. Direct dehydration; if there is, start to drain and monitor the turbidity of the laundry water, and according to the turbidity of the laundry water, the washing machine performs dehydration with adjustable speed and time adjustment of the dehydration speed and/or dehydration time. The dehydration control method of the washing machine determines the dehydration speed and time by monitoring the turbidity of the laundry water. When the clothes are dirty or the detergent is excessive, more dirt and detergent can be thrown out, the number of rinses can be reduced, and water can be saved. , Improve the cleanliness of clothes after washing. The washing machine dehydrated by using the washing machine dehydration control method provided by the invention has less power consumption and meets the requirements of energy saving and environmental protection.

Description

Washing machine dehydration control method and washing machine

technical field

The invention relates to the field of washing machine program control, in particular to a washing machine dehydration control and a washing machine method.

Background technique

At present, household washing machines are mainly pulsator washing machines and drum washing machines. The dehydration performed by the pulsator washing machine before rinsing has a constant dehydration speed and time. If there is a large eccentricity in the washing bucket, it will hit the control lever, so as to increase the dehydration by rinsing and washing again. If the eccentricity of the drum washing machine is allowed, the dehydration speed and time are also fixed, and the speed will not exceed the final dehydration speed. When a large eccentricity is detected, the dehydration before rinsing will be completed by reducing the speed. The dehydration time will be different due to the eccentricity detection and the time of uniform distribution, and the effective dehydration time will not change.

To sum up, the dehydration speed and duration of the existing washing machine before rinsing will not change due to the degree of dirt of the laundry and the residual amount of detergent. If the dehydration mode becomes controllable, the dehydration time or speed is reduced when the clothes are clean and the amount of detergent residue is small, and vice versa, the dehydration time or speed is increased to achieve the optimal combination of energy consumption and washing.

The patent number is ZL200510089881.X, and the invention title is "the self-tuning detection method of the washing machine and the washing machine using the method". The turbidity or temperature of the liquid determines the water intake, washing time and dehydration time required for the laundry. The dehydration time is set by detecting the turbidity of the washing liquid, but it does not solve the two problems of how to select the dehydration mode and how to set the dehydration steps according to the turbidity of the washing water.

Contents of the invention

The object of the present invention is to provide a method and device for controlling the dehydration time and dehydration speed of the washing machine according to the turbidity of the washing water, and the washing machine.

For reaching this purpose, the present invention adopts following technical scheme:

A washing machine dehydration control method includes the following steps:

Monitor whether there is laundry water in the washing tub, if not, the washing machine will perform direct dehydration according to the set dehydration speed and dehydration time;

If so, start to drain water and monitor the turbidity of the laundry water, and according to the turbidity of the laundry water, the washing machine performs dehydration in which the dehydration speed and/or dehydration time can be adjusted by adjusting the speed and time.

As preferably, said direct dehydration comprises the steps of:

Under the premise that the eccentricity of the washing bucket is allowed, determine the final dehydration speed;

The final spin speed is the highest spin speed, and the spin is performed according to the spin time set in the laundry mode.

Preferably, the dehydration with speed and time regulation comprises the following steps:

Set the maximum dehydration speed V _max , dehydration time T ₀ and speed difference ΔV according to the turbidity of the laundry water;

Under the premise that the eccentricity of the washing bucket is allowed, determine the final dehydration speed V;

If (V _max -V)≤△V, dehydration will be 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 dehydration speed V and reset dehydration time T, the reset dehydration time T=N*T ₀ , N=V _max /V.

Preferably, the dehydration with speed and time regulation comprises the following steps:

Set standard laundry water turbidity Y ₀ and turbidity difference ΔY;

Comparing the monitored actual laundry water turbidity Y with the standard laundry water turbidity Y ₀ , and the difference between the actual laundry water turbidity Y and the standard laundry water turbidity Y ₀ with the turbidity difference ΔY,

If Y≤Y ₀ , or (YY ₀ )≤△Y, dehydrate according to the dehydration time and dehydration speed V ₀ set in the laundry mode;

If Y>Y ₀ and (YY ₀ )>△Y, dehydrate according to the dehydration time set in the laundry mode and reset the dehydration speed V, the reset dehydration speed V=N*V ₀ , N=Y/Y ₀ .

Preferably, the dehydration with speed and time regulation comprises the following steps:

Set standard laundry water turbidity Y ₀ and turbidity difference ΔY;

Comparing the monitored actual laundry water turbidity Y with the standard laundry water turbidity Y ₀ , and the difference between the actual laundry water turbidity Y and the standard laundry water turbidity Y ₀ with the turbidity difference ΔY,

If Y≤Y ₀ , or (YY ₀ )≤△Y, perform dehydration according to the dehydration speed and dehydration time T ₀ set in the laundry mode;

If Y>Y ₀ and (YY ₀ )>△Y, dehydrate according to the dehydration speed set in the laundry mode and reset the dehydration time T, the reset dehydration speed T=N*T ₀ , N=Y/Y ₀ .

Preferably, the turbidity of the laundry water is monitored by a turbidity sensor arranged in the washing machine.

Preferably, the turbidity sensor is close to the drain of the washing machine to monitor the turbidity of the drain.

Preferably, whether there is washing water in the washing tub is monitored by a pressure sensor arranged at the bottom of the washing tub.

A washing machine, which is dehydrated by any one of the washing machine dehydration control methods described above.

The dehydration control method of the washing machine provided by the present invention determines the dehydration speed and time by monitoring the turbidity of the laundry water. When the clothes are dirty or the detergent is excessive, more dirt and detergent can be thrown out to reduce rinsing. times, save water, and improve the cleanliness of clothes after washing. The washing machine dehydrated by using the washing machine dehydration control method provided by the invention has less power consumption and meets the requirements of energy saving and environmental protection.

Description of drawings

Fig. 1 is a flow chart of the direct dehydration step in the washing machine dehydration control method provided by the embodiment of the present invention;

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

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

Fig. 4 is a flow chart of the third mode-adjustable dehydration step in the dehydration control method of the washing machine provided by the embodiment of the present invention.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

A washing machine dehydration control method, comprising the steps of:

Monitor whether there is laundry water in the washing tub, if not, the washing machine will perform direct dehydration according to the set dehydration speed and dehydration time;

If so, start to drain water and monitor the turbidity of the laundry water, and according to the turbidity of the laundry water, the washing machine performs dehydration in which the dehydration speed and/or dehydration time can be adjusted by adjusting the speed and time.

Whether there is laundry water in the washing bucket can be monitored through the pressure sensor installed at the bottom of the washing bucket, and the turbidity of the laundry water can be monitored through the turbidity sensor installed in the washing machine. You can also choose to monitor the washing bucket when it starts to drain after washing. The turbidity of the laundry water in the washing machine, but more preferably, the turbidity sensor is close to the drain of the washing machine, so that the concentration of the laundry water after washing can be accurately monitored. Each sensor acquires a signal and transmits the signal to the control system of the washing machine, and the acquired signal is processed by the control system of the washing machine.

As shown in Figure 1, described direct dehydration comprises the steps:

Monitor whether the washing bucket is eccentric, and determine the final dehydration speed V under the premise that the eccentricity of the washing bucket is allowed;

The final dehydration speed V is the highest dehydration speed, and the dehydration is carried out according to the dehydration time set in the laundry mode until the dehydration is completed.

If there is a large eccentricity in the washing bucket, add one more rinse to wash the clothes thoroughly before proceeding to the direct dehydration step.

As shown in Figure 2, a dehydration mode with speed and time regulation includes the following steps:

According to the turbidity of the laundry water, set the maximum dehydration speed V _max , dehydration time T ₀ and the speed difference ΔV. These parameters are automatically set by the washing machine control system after the user selects the laundry mode;

Under the premise that the eccentricity of the washing bucket is allowed, determine the final dehydration speed V;

If (V _max -V)≤△V, dehydration will be carried out at the final dehydration speed V and the set dehydration time T ₀ until the dehydration is completed.

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

In the above mode, the dehydration time and dehydration speed can be adjusted.

As shown in Figure 3, another dehydration method with speed and time regulation includes the following steps:

Set the standard laundry water turbidity Y ₀ and turbidity difference △Y, these parameters are automatically set by the washing machine control system after the user selects the laundry mode;

The control system of the washing machine compares the monitored actual laundry water turbidity Y with the standard laundry water turbidity Y ₀ , and the difference between the actual laundry water turbidity Y and the standard laundry water turbidity Y ₀ and the turbidity difference ΔY respectively ,

If Y≦Y ₀ , or (YY ₀ )≦△Y, dehydration is performed according to the dehydration time and the dehydration speed V ₀ set in the laundry mode until the dehydration is completed.

If Y>Y ₀ and (YY ₀ )>△Y, dehydrate according to the dehydration time set in the laundry mode and reset the dehydration speed V, the reset dehydration speed V=V ₀ *N, N=Y/Y ₀ until the end of dehydration.

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

As shown in Figure 4, another dehydration mode with speed regulation and time regulation includes the following steps:

Set the standard laundry water turbidity Y ₀ and turbidity difference △Y, these parameters are automatically set by the washing machine control system after the user selects the laundry mode;

The control system of the washing machine compares the monitored actual laundry water turbidity Y with the standard laundry water turbidity Y ₀ , and the difference between the actual laundry water turbidity Y and the standard laundry water turbidity Y ₀ and the turbidity difference ΔY respectively ,

If Y≤Y ₀ , or (YY ₀ )≤ΔY, dehydration is performed according to the dehydration speed and dehydration time T ₀ set in the laundry mode until the dehydration is completed.

If Y>Y ₀ and (YY ₀ )>△Y, dehydrate according to the dehydration speed set in the laundry mode and reset the dehydration time T, the reset dehydration speed T=T ₀ *N, N=Y/Y ₀ until the end of dehydration.

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

This washing machine dehydration control method monitors the turbidity of the laundry water, selects any method in which the dehydration time and dehydration speed are adjustable, the dehydration time is constant, the dehydration speed is adjustable, the dehydration speed is constant, and the dehydration time is adjustable. When it is dirty or there is too much detergent, it can throw out more dirt and detergent, reduce the number of rinses, save water, and improve the cleanliness of clothes after washing.

This embodiment also provides a washing machine, which performs dehydration through the above washing machine dehydration control method, thereby reducing the number of rinsing times, saving water, and less power consumption, meeting the requirements of energy saving and environmental protection.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (9)

1. A washing machine dehydration control method, is characterized in that, comprises the following steps: Monitor whether there is laundry water in the washing tub, if not, the washing machine will perform direct dehydration according to the set dehydration speed and dehydration time; If so, start to drain water and monitor the turbidity of the laundry water, and according to the turbidity of the laundry water, the washing machine performs dehydration in which the dehydration speed and/or dehydration time can be adjusted by adjusting the speed and time. 2. The washing machine dehydration control method according to claim 1, wherein said direct dehydration comprises the following steps: Under the premise that the eccentricity of the washing bucket is allowed, determine the final dehydration speed; The final spin speed is the highest spin speed, and the spin is performed according to the spin time set in the laundry mode. 3. The method for controlling dehydration of a washing machine according to claim 1, wherein said dehydration with speed and time regulation comprises the following steps: Set the maximum dehydration speed V _max , dehydration time T ₀ and speed difference ΔV according to the turbidity of the laundry water; Under the premise that the eccentricity of the washing bucket is allowed, determine the final dehydration speed V; If (V _max -V)≤△V, dehydration will be 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 dehydration speed V and reset dehydration time T, the reset dehydration time T=N*T ₀ , N=V _max /V. 4. The method for controlling dehydration of a washing machine according to claim 1, wherein said dehydration with speed and time regulation comprises the following steps: Set standard laundry water turbidity Y ₀ and turbidity difference ΔY; Comparing the monitored actual laundry water turbidity Y with the standard laundry water turbidity Y ₀ , and the difference between the actual laundry water turbidity Y and the standard laundry water turbidity Y ₀ with the turbidity difference ΔY, If Y≤Y ₀ , or (YY ₀ )≤△Y, dehydrate according to the dehydration time and dehydration speed V ₀ set in the laundry mode; If Y>Y ₀ and (YY ₀ )>△Y, dehydrate according to the dehydration time set in the laundry mode and reset the dehydration speed V, the reset dehydration speed V=N*V ₀ , N=Y/Y ₀ . 5. The method for controlling dehydration of a washing machine according to claim 1, wherein said dehydration with speed and time regulation comprises the following steps: Set standard laundry water turbidity Y ₀ and turbidity difference ΔY; Comparing the monitored actual laundry water turbidity Y with the standard laundry water turbidity Y ₀ , and the difference between the actual laundry water turbidity Y and the standard laundry water turbidity Y ₀ with the turbidity difference ΔY, If Y≤Y ₀ , or (YY ₀ )≤△Y, perform dehydration according to the dehydration speed and dehydration time T ₀ set in the laundry mode; If Y>Y ₀ and (YY ₀ )>△Y, dehydrate according to the dehydration speed set in the laundry mode and reset the dehydration time T, the reset dehydration speed T=N*T ₀ , N=Y/Y ₀ . 6. The method for controlling dehydration of a washing machine according to claim 1, wherein the turbidity of the washing water is monitored by a turbidity sensor installed in the washing machine. 7. The method for controlling the dehydration of the washing machine according to claim 6, wherein the turbidity sensor is close to the drain of the washing machine to monitor the turbidity of the drain. 8. The method for controlling dehydration of a washing machine according to claim 1, wherein whether there is laundry water in the washing tub is monitored by a pressure sensor arranged at the bottom of the washing tub. 9. A washing machine, characterized in that the washing machine is dehydrated by the method for controlling dehydration of a washing machine according to any one of claims 1 to 8.