WO2018036419A1

WO2018036419A1 - Washing machine control method and washing machine

Info

Publication number: WO2018036419A1
Application number: PCT/CN2017/097875
Authority: WO
Inventors: 许升; 吕艳芬
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2016-08-26
Filing date: 2017-08-17
Publication date: 2018-03-01
Also published as: CN107780125B; CN107780125A

Abstract

A washing machine control method and washing machine. The washing machine control method comprises: a spin process controlling, at an end part of the spin process, a water discharge device to close, performing a first water feeding process, and leaving in a washing machine the feed water for a rinse process; and the rinse process opening a water feeding valve, controlling the feed water to fill the same to a defined water level, and starting rinse. The method is utilized to feed water in the spin process, and since an inner tub rotates during water feeding, the feed water can wash a wall of the tub and remove filth from clothes, enhancing a washing effect. Moreover, feeding water at the end of the spin process and shutting off in advance the water charge device can ensure that the feed water is not wasted and used in the subsequent rinse process, saving water used in laundry.

Description

Washing machine control method and washing machine

Technical field

The present invention relates to the technical field of a control method for a washing machine, and in particular to a washing machine control method and a washing machine.

Background technique

The existing washing machine generally performs washing according to the process of washing-dehydration-primary rinsing-dehydration-secondary rinsing-dehydration, and the processes are divided by time limits.

In order to further improve the laundry efficiency, the laundry process has been improved. For example, the application number is 201310085154.0, and the application date is 2013-03-18. The invention relates to a laundry control method and a washing machine, the method comprising: Influent water; circulating washing: the first water circulation channel of the washing machine is turned on during the washing process to discharge the water in the inner cylinder and filtered into the inner cylinder, and the water in the inner cylinder is discharged outside the washing machine after the washing is finished; Dehydration: Perform at least one spray dehydration treatment. Each spray dehydration treatment includes: feeding a certain amount of clean water into the inner cylinder, rotating the inner cylinder, and turning on the second water circulation passage of the washing machine to take out the inner cylinder during the rotation process. The water is sprayed onto the clothes in the inner cylinder, and after the water is circulated for a second time, the inner cylinder is continuously rotated and the water pumped out during the rotation of the inner cylinder is discharged outside the washing machine. The invention saves the washing water, reduces the residual amount of the washing material in the laundry, and has lower cost.

Although the above invention patents have improved the existing rinsing and dewatering processes, water consumption is saved by circulating washing, and the washing effect is enhanced by spray dewatering. However, the above invention patent needs to increase the corresponding circulation passage and the filtering device, and the structure is relatively complicated, which increases the cost of the washing machine. In addition, the cycle washing and the spray dehydration are independent from each other, and are still divided by the time limit, and the washing time does not change.

Therefore, how to shorten the washing time of the washing machine and ensure even the effect of improving the laundry becomes a technical problem to be solved.

In view of this, the present invention has been specifically proposed.

Summary of the invention

In order to solve the above problems, the first object of the present invention is to provide a washing machine control method which can shorten the washing time and improve the washing efficiency, and specifically adopts the following technical solutions:

A washing machine control method comprising:

During the dehydration process, the end of the dehydration process controls the drainage device to close, the first water inflow process is performed, and the influent water remains in the laundry. The machine is used for the rinsing process;

And, during the rinsing process, the inlet valve is opened, the inlet water is controlled to the set water level, and the rinsing is started.

As a preferred embodiment of the present invention, the dehydration process comprises:

Start dehydration;

The drain device is opened to drain the discharged water;

Judging whether the dehydration process reaches the end stage, and if so, controlling the drainage device to be closed, the water inlet valve is opened, performing the first water inflow process, and if the determination result is no, the dehydration is continued;

The judging whether the dehydration process reaches the final stage mainly refers to the dehydration time or the dehydration rate.

Determining whether the remaining time Ts of the dehydration process satisfies 0<Ts≤0.2T0;

If the judgment result is yes, the dehydration process reaches the end stage, the control drainage device is closed, the inlet valve is opened, the first water inlet process is performed, and if the judgment result is no, the dehydration is continued;

Wherein, the T0 is the total time of the dehydration process.

As a preferred embodiment of the present invention, it is determined whether the remaining time Ts of the dehydration process is satisfied: 0.05T0<Ts≤0.1T0;

Preferably, it is judged whether the remaining time Ts of the dehydration process is satisfied: 20 s < Ts ≤ 30 s.

Determining whether the motor providing dehydration power is powered off;

If the judgment result is yes, the dehydration process is the last stage, the control drainage device is closed, the inlet valve is opened, the first water inlet process is performed, and if the judgment result is no, the dehydration is continued.

As a preferred embodiment of the present invention, the dehydration process further includes a second influent process, including:

The washing machine starts to dehydrate, and the inlet valve is controlled to open for a certain period of time during the dehydration process, and the drain device remains open.

As a preferred embodiment of the present invention, it is determined whether the motor rotation speed reaches the water spray speed V during the dehydration process, and if the determination result is yes, the second water inlet process is executed, and the inlet valve is controlled to open for a certain time, if the judgment result is If not, continue dehydration;

Wherein, the water spray speed V is 200-600 RPM, and preferably, the water spray speed V is 400-600 RPM.

As a preferred embodiment of the present invention, the opening time of the water inlet valve in the second water inlet process is T1, and the value of T1 is satisfied: the water level does not exceed the safe water level after the water entering the second water inlet process;

Preferably, the T1 takes a value of 20 seconds to 30 seconds.

As a preferred embodiment of the present invention, a washing machine control method includes:

Step S1, starting the dehydration process;

Step S2, the drain device is turned on, and the motor rotates;

Step S3, the washing machine determines whether the water spray speed V is reached;

Step S4, if the determination result is yes, the second water inflow process is executed, the inlet valve opening time T1 is controlled, and if the determination result is no, the process returns to step S2;

Step S5, closing the water inlet valve to continue the dehydration process;

Step S6, determining whether the motor is powered off;

Step S7, if the determination result is yes, the first water inlet process is executed, the drainage device is closed, and the water inlet valve is opened. If the determination result is no, the dehydration process is continued;

In step S8, the dehydration process ends and the rinsing process begins.

Step S1, starting the dehydration process;

Step S2, the drain device is turned on, and the motor rotates;

Step S5, closing the water inlet valve to continue the dehydration process;

Step S6, determining whether the remaining time Ts of the dehydration process satisfies 0<Ts≤0.2T0;

In step S8, the dehydration process ends and the rinsing process begins.

A second object of the present invention is to provide a washing machine using the washing machine control method according to any of the above.

The washing machine control method of the invention carries out water in the dehydration process. Due to the rotation of the inner cylinder during dehydration, the influent water can flush the wall of the tube and remove the dirt of the clothes, thereby improving the washing effect; moreover, the water entering the end of the dehydration process will The drainage device is closed in advance to ensure that the water is not wasted and used for the subsequent rinsing process, saving the washing water.

Therefore, the washing machine control method of the present invention creatively breaks the time limit between the various washing processes of the washing machine, fully utilizes the characteristics of each washing process, not only improves the washing effect of the laundry, but also shortens the washing time and saves the laundry. Use water.

DRAWINGS

1 is a flow chart of a control method of a washing machine according to an embodiment of the present invention;

2 is a flow chart of a control method of a washing machine according to an embodiment of the present invention;

3 is a flow chart of a control method of a washing machine in an embodiment of the present invention.

detailed description

A washing machine control method and a washing machine of the present invention will be described in detail below with reference to the accompanying drawings:

Embodiment 1

A washing machine control method of the embodiment includes:

During the dehydration process, the end of the dehydration process controls the drainage device to be closed, and the first water inflow process is performed, and the influent water is left in the washing machine for the rinsing process;

The washing machine control method of the present embodiment enters water during the dehydration process. Due to the rotation of the inner cylinder during dehydration, the influent water can flush the wall of the tube and remove the dirt of the clothes, thereby improving the washing effect; and, at the end of the dehydration process, water is introduced. The drainage device is closed in advance to ensure that the water is not wasted and used for the subsequent rinsing process, saving the washing water.

Therefore, the washing machine control method of the present embodiment creatively breaks the time limit between the various washing processes of the washing machine, fully utilizes the characteristics of each washing process, not only improves the washing effect of the laundry, but also shortens the washing time and saves the time. Laundry water.

Specifically, the dehydration process of the embodiment includes:

Start dehydration;

The drain device is opened to drain the discharged water;

It can be seen that the time when the first water inlet process starts to enter the water in the embodiment greatly affects the washing effect. If the water inlet time is too early, the clothes have a large water content because the clothes are not sufficiently dehydrated. Not only does it not have the effect of flushing the wall and clothing, but it will lead to unclean laundry. Therefore, the present embodiment is selected to be carried out at the end of the dehydration process. It is known from experience that the dewatering efficiency of the end stage of the dehydration process is extremely low. At this time, the first water inflow process is performed, and the effect of the flushing can be realized by the rotation of the inner cylinder to improve the washing effect. .

The final stage of the dehydration process is mainly the reference time factor or the dehydration rate factor. When selecting the dehydration rate as a reference factor When the prime time is detected, it is judged whether the dehydration process reaches the end stage by detecting the change of the dehydration rate of the laundry. When the dehydration rate decreases little or does not change within a certain period of time, it can be determined that the dehydration process reaches the end stage.

When the time factor is selected as the reference factor at the end of the dehydration process, the specific process is as follows:

The dehydration process of this embodiment includes:

Wherein, the T0 is the total time of the dehydration process.

In the present embodiment, by judging the remaining time Ts of the dehydration process, the remaining time Ts satisfies a certain condition and can be determined as the end of the dehydration process, which is easier to implement. Since Ts≤0.2T0, the selected judgment value is smaller and the reliability is higher. .

As an embodiment of the embodiment, it is determined whether the remaining time Ts of the dehydration process satisfies: 0.05T0<Ts≤0.1T0. Thus, Ts>0.05T0 can ensure that the first water inflow process has a certain amount of water inflow to achieve a good spray and wash effect; and Ts≤0.1T0, on the one hand, to ensure that water is started at the end of the dehydration process. On the other hand, it can be guaranteed that the water intake is below the safe water level.

As a specific implementation manner of this embodiment, it is determined whether the remaining time Ts of the dehydration process is satisfied: 20s<Ts≤30s.

In addition, the drain device described in this embodiment is a drain valve or a drain pump.

As shown in FIG. 3, the washing machine control method of this embodiment includes:

Step S1, the dehydration process starts;

Step S2, the drain valve or the drain pump is turned on;

Step S3, a dehydration process;

Step S4, determining whether the water inlet time is reached;

Step S5, if the judgment result is yes, the drain valve or the drain pump is closed, the inlet valve is opened, the first water inlet process is performed until the dehydration process ends, the rinsing process is started, and the inlet valve is opened until the rinsing water inlet ends, and if the result is judged If no, return to step S3.

Embodiment 2

The difference between this embodiment and the first embodiment is only that a technical solution for judging whether the dehydration process reaches the final stage is proposed, specifically as follows:

The dehydration process of this embodiment includes:

Determining whether the motor providing dehydration power is powered off;

Due to the dehydration process, the motor stops supplying power for a period of time. The inner cylinder is still in a state of high speed rotation due to inertia, that is to say, not the motor stops supplying power, which means the dehydration process ends.

In this embodiment, the characteristics of the working process are utilized, and the water is started after the motor is powered off. At this time, the rotational inertia of the motor can be utilized. When the motor rotates, the water splashes under the centrifugal force to wash the wall, and the motor speed is decreasing. For washing machines with cleaning particles between the inner and outer cylinders, the cleaning particles are not brought up, and it is not easy to produce continuous dehydration.

Embodiment 3

The difference between the embodiment and the first embodiment and the second embodiment is that, in the washing machine control method of the embodiment, the dehydrating process further includes a second water inflow process, including:

The main function of the second water inlet process of this embodiment is to flush the wall of the cylinder and take away the dirt in the clothes. At this time, the drain valve or the pump is opened to facilitate the discharge of dirt. Therefore, the second water inlet process can achieve a good spray washing effect and improve the washing effect.

In order to achieve the spray washing effect of the second water inflow process, the time point of the second water inflow process of the present embodiment also needs the characteristic design, the water inlet is too early, and the inner cylinder rotation speed is low, and the spray effect is not obtained. Specifically, the following processes are included:

Determining whether the motor rotation speed reaches the water spray speed V during the dehydration process, and if the judgment result is yes, executing the second water inlet process, controlling the water inlet valve to open for a certain time, and if the judgment result is no, continuing to dehydrate;

The water spray speed of the embodiment can make the second water inlet process have a better spray effect, and greatly improve the washing effect.

Further, in the second water inlet process described in this embodiment, the time of opening the water inlet valve is T1, and the value of T1 is satisfied: the water level does not exceed the safe water level after the water entering the second water inlet process;

Preferably, the T1 takes a value of 20 seconds to 30 seconds.

Embodiment 4

As shown in FIG. 1, a washing machine control method of this embodiment includes:

Step S1, starting the dehydration process;

Step S2, the drain device is turned on, and the motor rotates;

Step S5, closing the water inlet valve to continue the dehydration process;

Step S6, determining whether the motor is powered off;

In step S8, the dehydration process ends and the rinsing process begins.

The washing machine control method of the embodiment includes the first water inlet process and the second water inlet process twice in the dehydration process, and the timing, purpose and effect of the two water inlets are different:

The main function of the second water inflow process is to wash the wall of the tube and take away the dirt in the clothes. At this time, the drain valve or the pump is opened to facilitate the discharge of dirt, so the second water inlet process can be well sprayed. The effect of washing improves the washing effect.

The first water inflow process can flush the wall of the tube and remove the dirt of the clothes to improve the washing effect; moreover, the water is introduced at the end of the dehydration process, and the drainage device is closed in advance to ensure that the water is not wasted and used for the subsequent rinsing process. , saving laundry water.

Embodiment 5

A washing machine control method of the embodiment includes:

Step S1, starting the dehydration process;

Step S2, the drain device is turned on, and the motor rotates;

Step S5, closing the water inlet valve to continue the dehydration process;

In step S8, the dehydration process ends and the rinsing process begins.

Embodiment 6

The embodiment provides a washing machine using the washing machine control method according to any of the above embodiments, which breaks the time limit of the first process of the washing process of the conventional washing machine, improves the washing effect of the laundry, shortens the washing time, and saves the laundry. The amount of water used.

It should be noted that the dehydration process described in the above embodiment is washing dehydration or bleaching water, and cannot be the last dehydration.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any technology that is familiar with the present patent. Those skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content of the above-mentioned hints without departing from the technical scope of the present invention, but the technology according to the present invention does not deviate from the technical solution of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the present invention.

Claims

A washing machine control method, comprising:

During the dehydration process, the end of the dehydration process controls the drainage device to be closed, and the first water inflow process is performed, and the influent water is left in the washing machine for the rinsing process;

And, during the rinsing process, the inlet valve is opened, the inlet water is controlled to the set water level, and the rinsing is started.
A washing machine control method according to claim 1, wherein said dehydrating process comprises:

Start dehydration;

The drain device is opened to drain the discharged water;

Judging whether the dehydration process reaches the end stage, and if so, controlling the drainage device to be closed, the water inlet valve is opened, performing the first water inflow process, and if the determination result is no, the dehydration is continued;

The judging whether the dehydration process reaches the final stage mainly refers to the dehydration time or the dehydration rate.
A washing machine control method according to claim 2, wherein said dehydrating process comprises:

Determining whether the remaining time Ts of the dehydration process satisfies 0<Ts≤0.2T0;

If the judgment result is yes, the dehydration process reaches the end stage, the control drainage device is closed, the inlet valve is opened, the first water inlet process is performed, and if the judgment result is no, the dehydration is continued;

Wherein, the T0 is the total time of the dehydration process.
The washing machine control method according to claim 3, wherein it is determined whether the remaining time Ts of the dehydration process satisfies: 0.05T0 < Ts ≤ 0.1T0;

Preferably, it is judged whether the remaining time Ts of the dehydration process is satisfied: 20 s < Ts ≤ 30 s.
A washing machine control method according to claim 2, wherein said dehydrating process comprises:

Determining whether the motor providing dehydration power is powered off;

If the judgment result is yes, the dehydration process is the last stage, the control drainage device is closed, the inlet valve is opened, the first water inlet process is performed, and if the judgment result is no, the dehydration is continued.
The washing machine control method according to any one of claims 1 to 5, wherein the dehydration process further comprises a second water inflow process, comprising:

The washing machine starts to dehydrate, and the inlet valve is controlled to open for a certain period of time during the dehydration process, and the drain device remains open.
The washing machine control method according to claim 6, wherein it is determined whether the motor rotation speed reaches the water spray speed V during the dehydration process, and if the determination result is yes, the second water inlet process is executed to control the water inlet valve. Open for a certain period of time, if the judgment result is no, continue dehydration;

Wherein, the water spray speed V is 200-600 RPM, and preferably, the water spray speed V is 400-600 RPM.
A washing machine control method according to claim 6, wherein said second water entering process The opening time of the inlet valve is T1, and the value of T1 is satisfied: the water level does not exceed the safe water level after the water is introduced into the second water inlet process;

Preferably, the T1 takes a value of 20 seconds to 30 seconds.
A washing machine control method according to any one of claims 1-8, comprising:

Step S1, starting the dehydration process;

Step S2, the drain device is turned on, and the motor rotates;

Step S3, the washing machine determines whether the water spray speed V is reached;

Step S4, if the determination result is yes, the second water inflow process is executed, the inlet valve opening time T1 is controlled, and if the determination result is no, the process returns to step S2;

Step S5, closing the water inlet valve to continue the dehydration process;

Step S6, determining whether the motor is powered off;

Step S7, if the determination result is yes, the first water inlet process is executed, the drainage device is closed, and the water inlet valve is opened. If the determination result is no, the dehydration process is continued;

In step S8, the dehydration process ends and the rinsing process begins.
A washing machine control method according to any one of claims 1-8, comprising:

Step S1, starting the dehydration process;

Step S2, the drain device is turned on, and the motor rotates;

Step S3, the washing machine determines whether the water spray speed V is reached;

Step S4, if the determination result is yes, the second water inflow process is executed, the inlet valve opening time T1 is controlled, and if the determination result is no, the process returns to step S2;

Step S5, closing the water inlet valve to continue the dehydration process;

Step S6, determining whether the remaining time Ts of the dehydration process satisfies 0<Ts≤0.2T0;

Step S7, if the determination result is yes, the first water inlet process is executed, the drainage device is closed, and the water inlet valve is opened. If the determination result is no, the dehydration process is continued;

In step S8, the dehydration process ends and the rinsing process begins.
A washing machine using the washing machine control method according to any one of claims 1 to 10.