CN107805912B - Dewatering control method for washing machine - Google Patents
Dewatering control method for washing machine Download PDFInfo
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- CN107805912B CN107805912B CN201711072850.2A CN201711072850A CN107805912B CN 107805912 B CN107805912 B CN 107805912B CN 201711072850 A CN201711072850 A CN 201711072850A CN 107805912 B CN107805912 B CN 107805912B
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- 238000005406 washing Methods 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000018044 dehydration Effects 0.000 claims abstract description 285
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 267
- 230000009467 reduction Effects 0.000 claims abstract description 82
- 208000005156 Dehydration Diseases 0.000 claims description 262
- 230000001133 acceleration Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 13
- 230000008569 process Effects 0.000 description 12
- 238000009827 uniform distribution Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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- D06F2204/065—
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention relates to the technical field of washing machines, in particular to a dewatering control method of a washing machine. The dehydration control method provided by the invention can effectively reduce the overlapped noise generated during dehydration and drainage by the upper drainage pump, improve the dehydration effect by utilizing the noise reduction dehydration of the washing machine, and simultaneously reduce the loud sound generated during dehydration with water.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to a washing machine dehydration control method.
Background
The washing machine with the upper drainage mode is more and more accepted by users, the drainage mode is to pump water out through a water suction pump, the washing machine with the upper drainage mode has the advantages that the drained water can be reused and can be used for flushing a toilet, mopping the floor and the like, the washing machine can be placed in a place without a floor drain, and water can be directly drained into a water containing container through lengthening a drain pipe.
However, this drainage method is disadvantageous in that such a drainage structure is generally complicated, and the drainage by the drainage pump consumes electric power, thereby generating noise during the operation of the motor. In the dewatering process of the washing machine, a large amount of water is separated from the clothes under the action of centrifugal force, and meanwhile, the water generated by dewatering is discharged by the drainage pump, so that the dewatering noise and the motor noise are superposed to generate abnormal sound, and a user can mistakenly think that the washing machine has a fault easily.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a dewatering control method of a washing machine, wherein a noise reduction dewatering stage is arranged in a dewatering program to reduce the noise generated by the dewatering and an upper drainage pump, and the drainage pump runs at a certain start-stop ratio to play a role in reducing the noise.
In order to achieve the purpose, the invention specifically adopts the following scheme:
a dewatering control method for washing machine features that the dewatering program and upper dewatering program are executed simultaneously, and the noise-reducing dewatering stage with motor speed lower than default speed is set up at intervals in dewatering program to reduce the noise generated when dewatering program and upper dewatering program are overlapped.
According to the scheme, the washing machine runs the dewatering program after the dewatering program is finished, moisture thrown off from clothes still appears in the dewatering program, and the drained water of the upper drainage washing machine is drained after the waste water is lifted by the water pump, so that the upper drainage pump also runs the drainage simultaneously in the dewatering process, and the sound of the running of the upper drainage pump and the noise generated by the dewatering program are superposed to cause bad user experience.
The further scheme of the invention is as follows: the dehydration program comprises a step of controlling the washing machine to alternately execute a conventional dehydration stage and a noise reduction dehydration stage, wherein the conventional dehydration stage is that the washing machine executes dehydration at the default rotating speed of the system, and the rotating speed of the motor of the washing machine at the noise reduction dehydration stage is lower than that of the motor of the washing machine at the conventional dehydration stage.
In the scheme, the conventional dewatering rotating speed is always set in the existing washing machine, in the dewatering program, the rotating speed of the motor not only adopts the default conventional rotating speed of the system, but also is added with a noise reduction dewatering stage with the rotating speed far lower than the default rotating speed of the system, so that the noise of the dewatering program is reduced, and simultaneously, the noise generated by superposition is also reduced.
The further scheme of the invention is as follows: the dehydration program comprises a low-speed dehydration step of running in advance and a high-speed dehydration step of running in the later, wherein the low-speed dehydration step comprises the step of controlling the washing machine to alternately execute a conventional low-speed dehydration stage and a noise reduction dehydration stage, and the rotating speed of a motor of the washing machine in the conventional low-speed dehydration stage is greater than that in the noise reduction dehydration stage; the high-speed dehydration step comprises the step of controlling the washing machine to alternately execute a conventional high-speed dehydration stage and a noise reduction dehydration stage, wherein the rotating speed of a motor of the washing machine in the conventional high-speed dehydration stage is greater than that in the conventional low-speed dehydration stage.
In the above scheme, the existing washing machine is always provided with low-speed rotation running in advance and high-speed rotation running in the latter in the dehydration process, so that the clothes are uniformly distributed in the barrel when rotating at the low speed, and the problems of unbalance and the like caused by high-speed dehydration are prevented. The dehydration program comprises a low-speed dehydration step and a high-speed dehydration step, wherein the motor rotating speed of the high-speed dehydration step is higher than that of the low-speed dehydration step, when dehydration is carried out, the motor of the washing machine alternately executes conventional low-speed dehydration and noise reduction dehydration stages, so that the inner barrel can realize dehydration at the high-low alternate rotating speed, partial moisture in clothes is removed in advance, the uniform distribution effect is further improved, then high-speed dehydration is carried out, the inner barrel is alternately rotated at the rotating speed higher than that of the conventional low-speed dehydration and the lower noise reduction rotating speed, dirty water in the rinsed clothes is thrown off, and the situation that the moisture of the wound part cannot be thrown off completely due to the winding of the clothes is avoided.
The further scheme of the invention is as follows: the duration time of the conventional low-speed dehydration stage is the same as or different from that of the conventional high-speed dehydration stage and the noise reduction dehydration stage; preferably, the duration of the noise reduction dewatering stage in the low speed dewatering step is the same as the duration of the high speed dewatering step.
In the scheme, the noise reduction dehydration, the conventional low-speed dehydration and the conventional high-speed dehydration are arranged in sequence from low to high, and the rotating speed of the motor in the noise reduction dehydration stage is far lower than that of the conventional low-speed dehydration and the conventional high-speed dehydration, so that the running time of each stage can be adjusted according to the dehydration condition and the working state of the upper drainage pump in the dehydration program to achieve the dehydration effect with lowest noise. Wherein, because the low-speed dehydration step and the high-speed dehydration step both comprise a noise reduction dehydration stage which can improve the uniform distribution effect of the clothes in the barrel besides reducing noise, the noise reduction dehydration stage with the same duration time is arranged in the low-speed dehydration step and the high-speed dehydration step.
The further scheme of the invention is as follows: the washing machine controls the rotating speed of a motor in the noise reduction dehydration stage to be increased to the rotating speed in the conventional dehydration stage at a certain acceleration, or controls the rotating speed of the motor in the noise reduction dehydration stage to be directly increased to the rotating speed in the conventional dehydration stage.
In the scheme, when the washing machine is used for dewatering, the motor of the washing machine is accelerated to a normal speed at a certain acceleration from a noise reduction stage with a low rotating speed, then the normal speed is kept to rotate at a constant speed, part of moisture of loaded clothes can be discharged in the acceleration process, the clothes can be better attached to the wall of the inner barrel, then the acceleration process is carried out at a constant speed to finish eccentric adjustment, and the clothes loads are uniformly distributed in the barrel to adapt to the next higher-speed dewatering.
The further scheme of the invention is as follows: and the upper drainage program controls an upper drainage pump of the washing machine to alternately perform drainage and stop.
In the above scheme, the upper drainage pump works at a certain start-stop ratio, so that the working temperature of the drainage pump is reduced, the service life is prolonged, and the noise generation frequency of the upper drainage pump is reduced.
The further scheme of the invention is as follows: the method comprises the following steps:
s1, starting a control method;
s2, simultaneously executing a dehydration program and an upper drainage program;
and S3, alternately executing a conventional dehydration stage and a noise reduction dehydration stage according to the set dehydration rotating speed and dehydration time until the dehydration is finished.
The further scheme of the invention is as follows: the step S3 further comprises a low-speed dehydration step of prior operation and a high-speed dehydration step of subsequent operation, wherein the low-speed dehydration step comprises controlling the motor of the washing machine to alternatively execute the rotation speed n L At a conventional low speed dewatering stage and at a speed of n D In the noise-reducing dehydration stage of (1), wherein n L ＞n D Setting; the high-speed dehydration step comprises controlling the motor of the washing machine to alternatively execute the rotating speed of n H At a conventional high speed dewatering stage and at a rotational speed n D De-noising and dewatering stage of (n) H ＞n L And (5) setting.
The further scheme of the invention is as follows: the dehydration time in said step S3 includes a conventional low-speed dehydration stage T among the previously performed low-speed dehydration steps L Second and noise reduction dehydration stage T D Second, and a conventional high-speed dewatering stage T in a high-speed dewatering step to be performed later H Second and noise reduction dehydration stage T D And seconds.
Among the above-mentioned scheme, the washing machine motor carries out conventional low-speed rotation and falls the rotation of making an uproar in turn in the low-speed dehydration step, adjust the load eccentricity before the dehydration, especially, to the clothing that absorbs water more such as object sweater, if directly get into the high-speed dehydration step and take place to bump the bucket and produce the noise easily, set up the control inner tube with certain time, certain rotational speed carries out the low-speed rotation and falls the rotation of making an uproar alternately, utilize the rotational speed far below the dehydration stage of making an uproar of conventional rotational speed to take off partly moisture in advance, adjust the eccentricity of load, when reaching the eccentricity value scope that the high-speed dehydration rotational speed corresponds, can get into high-speed dehydration fast, reduce washing machine's vibrations and noise, improve washing machine's dewatering performance.
The further scheme of the invention is as follows: when the washing machine performs the last dehydration, the step S3 further includes a last dehydration step performed after the high-speed dehydration step, wherein the last dehydration step is to control the motor of the washing machine to rotate at the speed n within a certain time H And (4) operating.
In the above scheme, when last dehydration is carried out, after the washing machine executes the high-speed dehydration step, a noise reduction dehydration stage is added to uniformly distribute clothes in the inner barrel, so that the last dehydration stable operation with longer duration and higher motor rotating speed is carried out on the next step, and a good dehydration effect is achieved.
The invention has the beneficial effects that:
1. the control method provided by the invention comprises a noise reduction dehydration stage with the rotating speed far lower than the conventional dehydration rotating speed, which is used for reducing the noise generated by the dehydration of the washing machine;
2. the control method provided by the invention comprises a low-speed dehydration step running in advance and a high-speed dehydration step running in the later, and the two successive steps comprise a noise reduction dehydration stage with the rotating speed far lower than the rotating speed of the conventional dehydration, so that the distribution effect of the low-speed dehydration stage is improved, and the noise of the high-speed dehydration stage is reduced;
3. the control method provided by the invention comprises the step of operating the upper drainage pump at a certain start-stop ratio, so that the time for the upper drainage pump and the motor to operate simultaneously is shortened, and the noise generated by the superposition of the upper drainage pump and the motor is reduced.
Drawings
Fig. 1 is a schematic diagram of a dehydration control method of a washing machine according to the present invention.
FIG. 2 is a table of parameters for embodiment 1 of the present invention.
FIG. 3 is a table of parameters in embodiment 2 of the present invention.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Example 1
In this embodiment, a dewatering control method for a washing machine is provided, in which the washing machine executes a dewatering program and an upper drainage program at the same time, and a noise reduction dewatering stage in which the rotation speed of a motor is lower than a default dewatering rotation speed is set at an interval in the dewatering program, so as to reduce noise when the dewatering program and the upper drainage program are executed in an overlapped manner.
In the embodiment, the washing machine runs the dewatering program after the dewatering program is finished, water thrown off from clothes still appears in the dewatering program, and because the drainage of the upper drainage washing machine is discharged after the wastewater is lifted by the water pump, the upper drainage pump also runs the drainage simultaneously in the dewatering process, and the running sound of the upper drainage pump and the noise generated by the dewatering program are superposed to cause bad user experience.
In this embodiment, the dehydration program includes controlling the washing machine to alternately execute a normal dehydration stage and a noise reduction dehydration stage, where the normal dehydration stage is a stage in which the washing machine performs dehydration at a default rotation speed of the system, and the rotation speed of the washing machine motor in the noise reduction dehydration stage is lower than that in the normal dehydration stage.
In the embodiment, the conventional dewatering rotating speed is always set in the existing washing machine, in the dewatering program, the rotating speed of the motor not only adopts the default conventional rotating speed of the system, but also is added with a noise reduction dewatering stage with the rotating speed far lower than the default rotating speed of the system, so that the noise generated by superposition is reduced while the noise of the dewatering program is reduced.
In this embodiment, the dehydration program includes a low-speed dehydration step of a previous operation and a high-speed dehydration step of a subsequent operation, the low-speed dehydration step includes controlling the washing machine to alternately perform a conventional low-speed dehydration stage and a noise reduction dehydration stage, wherein the rotation speed of the motor of the washing machine in the conventional low-speed dehydration stage is greater than the setting of the noise reduction dehydration stage; the high-speed dehydration step comprises the step of controlling the washing machine to alternately execute a conventional high-speed dehydration stage and a noise reduction dehydration stage, wherein the rotating speed of a motor of the washing machine in the conventional high-speed dehydration stage is higher than that in the conventional low-speed dehydration stage.
In this embodiment, the existing washing machine is always provided with a low-speed rotation in the prior operation and a high-speed rotation in the subsequent operation in the dehydration process, so that the clothes are uniformly distributed in the tub during the low-speed rotation, thereby preventing the problems of unbalance and the like caused by the high-speed dehydration. The dehydration program comprises a low-speed dehydration step and a high-speed dehydration step, wherein the motor rotating speed of the high-speed dehydration step is higher than that of the low-speed dehydration step, when dehydration is carried out, the motor of the washing machine alternately executes conventional low-speed dehydration and noise reduction dehydration stages, so that the inner barrel can be dehydrated at high and low alternate rotating speeds, part of water in clothes is removed in advance, the uniform distribution effect is further improved, then high-speed dehydration is carried out, the inner barrel is alternately rotated at a rotating speed higher than that of the conventional low-speed dehydration and a lower noise reduction rotating speed, dirty water in the rinsed clothes is thrown off, and the phenomenon that the wound part of water cannot be thrown off due to the winding of the clothes is avoided.
In the embodiment, the duration time of the conventional low-speed dehydration stage, the duration time of the conventional high-speed dehydration stage and the duration time of the noise reduction dehydration stage are the same or different; preferably, the duration of the noise reduction dewatering stage is the same in the low speed dewatering step and the high speed dewatering step.
In this embodiment, since the noise reduction dewatering, the normal low-speed dewatering and the normal high-speed dewatering are sequentially arranged from low to high, and the rotation speed of the motor in the noise reduction dewatering stage is much lower than that of the normal low-speed and normal high-speed dewatering, the operation time of each stage is adjusted according to the dewatering condition and the working state of the upper drainage pump in the dewatering process to achieve the dewatering effect with the lowest noise. Wherein, because the low-speed dehydration step and the high-speed dehydration step both comprise the noise reduction dehydration stage, the stage can not only reduce noise, but also improve the uniform distribution effect of clothes in the barrel, therefore, the noise reduction dehydration stage with the same duration is arranged in the low-speed dehydration step and the high-speed dehydration step.
In this embodiment, the washing machine controls the rotation speed of the motor in the noise reduction dehydration stage to be increased to the rotation speed in the conventional dehydration stage at a certain acceleration.
In this embodiment, during dehydration, the motor of the washing machine accelerates from the noise reduction stage with a lower rotation speed to a normal speed at a certain acceleration, and then keeps rotating at the normal speed at a constant speed, the acceleration process can discharge a part of moisture of the loaded clothes, so that the clothes can be better attached to the inner tub wall, and then the washing machine runs at the constant speed to complete eccentric adjustment, so that the clothes load is uniformly distributed in the tub to adapt to the next higher-speed dehydration.
In this embodiment, the upper drain process controls the upper drain pump of the washing machine to alternately perform draining and stop. The upper drainage pump works at a certain start-stop ratio, so that the working temperature of the drainage pump is reduced, the service life is prolonged, and the noise generation frequency of the upper drainage pump is reduced.
In this embodiment, the control method includes the following steps:
s1, starting a control method;
s2, simultaneously executing a dehydration program and an upper drainage program;
and S3, alternately executing a conventional dehydration stage and a noise reduction dehydration stage according to the set dehydration rotation speed and dehydration time until the dehydration is finished.
In this embodiment, the step S3 further includes a low-speed dehydration step of a previous operation and a high-speed dehydration step of a subsequent operation, and the low-speed dehydration step includes controlling the motor of the washing machine to alternately perform the spin speed of n L Normal low speed dewatering stage and speed of rotation n D In the noise-reducing dehydration stage of (1), wherein n L ＞n D Setting; the high-speed dehydration step comprises controlling the motor of the washing machine to alternatively execute the rotating speed of n H Normal high speed dewatering stage and speed of rotation n D De-noising and dewatering stage of (n) H ＞n L And (4) setting.
In this embodiment, the dewatering time in step S3 includes a conventional low-speed dewatering stage T in a previously performed low-speed dewatering step L Second and noise reduction dehydration stage T D Second, and a conventional high-speed dewatering stage T in a high-speed dewatering step to be performed later H Second and noise reduction dehydration stage T D And seconds.
In this embodiment, in the low-speed dewatering step, the motor is programmed to rotate at a normal low-speed n L1 Operation T L1 Second, then the speed is reduced to reduce the noise n D Operation T D1 Second, then the rotation speed is increased to n with a certain acceleration L1 And run T L1 Second, and then the noise reduction speed n D Operation T D2 Second, T D1 Greater than T D2 Then the rotation speed is increased to n with a certain acceleration L2 And run T L2 Second, n L2 Greater than n L1 And is less than n H1 ，T L2 Greater than T L1 Completing the low-speed dehydration step; then, a high-speed dewatering step is operated, and the motor is controlled by a program to rotate at a normal high-speed n H1 Operation T H1 Second, then the rotational speed is reduced to reduce the noise n D Operation T D3 Second, T D3 Is equal to T D2 Then the rotation speed is increased to n with a certain acceleration H1 And run T H2 Second, T H2 Greater than T H1 And finishing the high-speed dehydration step.
In this embodiment, the washing machine motor alternately executes conventional low-speed rotation and noise reduction rotation in the low-speed dehydration step, in order to adjust the load eccentricity before dehydration, especially for clothes with more water absorption such as sweaters, if the clothes easily collide to the barrel and generate noise when directly entering the high-speed dehydration step, the control inner barrel is set to alternately execute low-speed rotation and noise reduction rotation at a certain time and a certain rotating speed, a part of water is removed in advance in a noise reduction dehydration stage with the rotating speed far lower than the conventional rotating speed, the load eccentricity is adjusted, when the range of an eccentricity value corresponding to the high-speed dehydration rotating speed is reached, the high-speed dehydration can be rapidly entered, the vibration and the noise of the washing machine are reduced, and the dehydration performance of the washing machine is improved.
Example 2
In this embodiment, a dewatering control method for a washing machine is provided, in which the washing machine simultaneously executes a dewatering program and an upper drainage program, and a noise reduction dewatering stage in which a rotation speed of a motor is lower than a default dewatering rotation speed is set at an interval in the dewatering program, so as to reduce noise when the dewatering program and the upper drainage program are executed in an overlapping manner.
In the embodiment, the washing machine runs the dewatering program after the dewatering program is finished, the moisture thrown off from clothes still appears in the dewatering program, and the drained water of the upper drainage washing machine is drained after the waste water is lifted by the water pump, so the upper drainage pump also runs the drainage simultaneously in the dewatering process, and the sound generated by the running of the upper drainage pump and the noise generated by the dewatering program are superposed to cause bad user experience.
In this embodiment, the dewatering program includes controlling the washing machine to alternately execute a normal dewatering stage and a noise reduction dewatering stage, where the normal dewatering stage is that the washing machine executes dewatering at a system default rotation speed, and the rotation speed of the washing machine motor in the noise reduction dewatering stage is lower than that in the normal dewatering stage.
In the embodiment, the conventional dewatering rotating speed is always set in the existing washing machine, in the dewatering program, the rotating speed of the motor not only adopts the default conventional rotating speed of the system, but also is added with a noise reduction dewatering stage with the rotating speed far lower than the default rotating speed of the system, so that the noise generated by superposition is reduced while the noise of the dewatering program is reduced.
In this embodiment, the dehydration program includes a low-speed dehydration step of a previous operation and a high-speed dehydration step of a subsequent operation, the low-speed dehydration step includes controlling the washing machine to alternately execute a conventional low-speed dehydration stage and a noise reduction dehydration stage, wherein the rotation speed of the motor of the washing machine in the conventional low-speed dehydration stage is greater than the setting of the noise reduction dehydration stage; the high-speed dehydration step comprises the step of controlling the washing machine to alternately execute a conventional high-speed dehydration stage and a noise reduction dehydration stage, wherein the rotating speed of a motor of the washing machine in the conventional high-speed dehydration stage is higher than that in the conventional low-speed dehydration stage.
In this embodiment, the existing washing machine is always provided with a low-speed rotation in the prior operation and a high-speed rotation in the subsequent operation in the dehydration process, so that the clothes are uniformly distributed in the tub during the low-speed rotation, thereby preventing the problems of unbalance and the like caused by the high-speed dehydration. The dehydration program comprises a low-speed dehydration step and a high-speed dehydration step, wherein the motor rotating speed of the high-speed dehydration step is higher than that of the low-speed dehydration step, when dehydration is carried out, the motor of the washing machine alternately executes conventional low-speed dehydration and noise reduction dehydration stages, so that the inner barrel can be dehydrated at high and low alternate rotating speeds, part of water in clothes is removed in advance, the uniform distribution effect is further improved, then high-speed dehydration is carried out, the inner barrel is alternately rotated at a rotating speed higher than that of the conventional low-speed dehydration and a lower noise reduction rotating speed, dirty water in the rinsed clothes is thrown off, and the phenomenon that the wound part of water cannot be thrown off due to the winding of the clothes is avoided.
In this embodiment, the duration of the conventional low-speed dewatering stage, the duration of the conventional high-speed dewatering stage and the duration of the noise reduction dewatering stage are set to be the same or different.
In this embodiment, since the noise reduction dewatering, the normal low-speed dewatering and the normal high-speed dewatering are sequentially arranged from low to high, and the rotation speed of the motor in the noise reduction dewatering stage is much lower than that of the normal low-speed and normal high-speed dewatering, the operation time of each stage is adjusted according to the dewatering condition and the working state of the upper drainage pump in the dewatering process to achieve the dewatering effect with the lowest noise.
In this embodiment, the washing machine controls the rotation speed of the motor in the noise reduction dehydration stage to be directly increased to the rotation speed in the conventional dehydration stage.
In this embodiment, the upper drain program controls the upper drain pump of the washing machine to alternately perform draining and stop. The upper drainage pump works at a certain start-stop ratio, so that the working temperature of the drainage pump is reduced, the service life is prolonged, and the noise generation frequency of the upper drainage pump is reduced.
In this embodiment, the control method includes the following steps:
s1, starting a control method;
s2, simultaneously executing a dehydration program and an upper drainage program;
and S3, alternately executing a conventional dehydration stage and a noise reduction dehydration stage according to the set dehydration rotating speed and dehydration time until the dehydration is finished.
In this embodiment, the step S3 further includes a low-speed dehydration step of a previous operation and a high-speed dehydration step of a subsequent operation, and the low-speed dehydration step includes controlling the motor of the washing machine to alternately perform the spin speed of n L Normal low speed dewatering stage and speed of rotation n D In the noise-reducing dehydration stage of (1), wherein n L ＞n D Setting; the high-speed dehydration step comprises controlling the motor of the washing machine to alternatively execute the rotating speed of n H At a conventional high speed dewatering stage and at a rotational speed n D De-noising and dewatering stage of (n) H ＞n L And (5) setting.
In this embodiment, the dehydration time in step S3 includes a conventional low-speed dehydration stage T in a previously performed low-speed dehydration step L Second and noise reduction dehydration stage T D Second, and a conventional high-speed dewatering stage T in a high-speed dewatering step to be performed later H Second and noise reduction dehydration stage T D And seconds.
In this embodiment, in the low-speed dewatering step, the motor is programmed to rotate at a normal low speed n L1 Operation T L1 Second, then the rotational speed is reduced to reduce the noise n D Operation T D1 Second, then the rotation speed is increased to n L1 And run T L1 Second, and then the noise reduction rotating speed n D Operation T D2 Second, T D1 Greater than T D2 Then the rotation speed is increased to n L2 And run T L2 Second, n L2 Greater than n L1 And is less than n H1 ，T L2 Greater than T L1 Completing the low-speed dehydration step; then, a high-speed dewatering step is operated, and the motor is controlled by a program to rotate at a normal high-speed n H1 Operation T H1 Second, then the rotational speed is reduced to reduce the noise n D Operation T D3 Second, T D3 Greater than T D2 Then the rotation speed is increased to n H1 And run T H2 Second, T H2 Is equal to T H1 And finishing the high-speed dehydration step.
In the embodiment, the motor of the washing machine alternately executes conventional low-speed rotation and noise reduction rotation in the low-speed dehydration step, the load eccentricity is adjusted before dehydration, especially for clothes such as sweaters which absorb more water, if the clothes directly enter the high-speed dehydration step and easily collide with the bucket to generate noise, the inner bucket is controlled to alternately execute the low-speed rotation and the noise reduction rotation at a certain time and a certain rotating speed, a part of water is removed in advance in the noise reduction dehydration stage with the rotating speed far lower than the conventional rotating speed, the eccentricity of the load is adjusted, when the eccentric value range corresponding to the high-speed dehydration rotating speed is reached, the high-speed dehydration can be quickly performed, the vibration and the noise of the washing machine are reduced, and the dehydration performance of the washing machine is improved.
In this embodiment, when the washing machine performs the last dehydration, the step S3 further includes a last dehydration step executed after the high-speed dehydration step, where the last dehydration step is to control the motor of the washing machine to rotate at the rotation speed n within a certain time H And (4) operating.
In the embodiment, when the last dewatering is carried out, after the washing machine executes the high-speed dewatering step, a noise reduction dewatering stage is added, and the motor is controlled by the program to rotate at the conventional high-speed n H1 Operation T H3 Second, T H3 Greater than T H2 And T H1 Clothes are uniformly distributed in the inner barrel, so that the next time is longer in duration and the last time with higher motor rotating speedThe dehydration is stable in operation, and a good dehydration effect is achieved.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements and substitutions will now be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. A dehydration control method of a washing machine is characterized in that the washing machine simultaneously executes a dehydration program and an upper drainage program, and a noise reduction dehydration stage that the rotating speed of a motor is lower than the conventional dehydration rotating speed is arranged at intervals in the dehydration program, so that the noise generated when the dehydration program and the upper drainage program are executed in an overlapping way is reduced;
the dehydration program comprises a low-speed dehydration step of running in advance and a high-speed dehydration step of running in the later, wherein the low-speed dehydration step comprises the step of controlling the washing machine to alternately execute a conventional low-speed dehydration stage and a noise reduction dehydration stage, and the rotating speed of a motor of the washing machine in the conventional low-speed dehydration stage is greater than that in the noise reduction dehydration stage; the high-speed dehydration step comprises the steps of controlling the washing machine to alternately execute a conventional high-speed dehydration stage and a noise reduction dehydration stage, wherein the rotating speed of a motor of the washing machine in the conventional high-speed dehydration stage is greater than that in the conventional low-speed dehydration stage;
the washing machine controls the rotating speed of a motor in the noise reduction and dehydration stage to be increased to the rotating speed in the conventional dehydration stage at a certain acceleration or controls the rotating speed of the motor in the noise reduction and dehydration stage to be directly increased to the rotating speed in the conventional dehydration stage, and the dehydration program further comprises a last dehydration step:
when the last time of dehydration is carried out, the washing machine controls the motor to operate at a normal high-speed rotating speed after the high-speed dehydration step is executed.
2. The dehydration control method of a washing machine according to claim 1, wherein said dehydration program comprises controlling the washing machine to alternately perform a regular dehydration phase and a noise reduction dehydration phase, wherein the regular dehydration phase is a phase in which the washing machine performs dehydration at a system default rotation speed, and the rotation speed of the washing machine motor in the noise reduction dehydration phase is lower than that in the regular dehydration phase.
3. The dehydration control method of a washing machine of claim 1, wherein the durations of the regular low-speed dehydration stage, the regular high-speed dehydration stage and the noise reduction dehydration stage are the same or different.
4. The dehydration control method of a washing machine according to claim 3, wherein the duration of the noise reduction dehydration stage in the low-speed dehydration step and the high-speed dehydration step is the same.
5. The dehydration control method of a washing machine according to claim 1, wherein said upper drain program controls an upper drain pump of the washing machine to alternately perform draining and stopping.
6. The dehydration control method of a washing machine according to claim 1, wherein said low-speed dehydration step comprises controlling a washing machine motor to alternately perform a rotation speed of n L At a conventional low speed dewatering stage and at a speed of n D In the noise-reducing dehydration stage of (1), wherein n L ＞n D Setting; the high-speed dehydration step comprises controlling the motor of the washing machine to alternatively execute the rotating speed of n H Normal high speed dewatering stage and speed of rotation n D De-noising and dewatering stage of (n) H ＞n L And (5) setting.
7. The dehydration control method of a washing machine according to claim 1, wherein said low-speed dehydration step comprises controlling the washing machine to alternately perform a regular low-speed dehydration phase T L Second and noise reduction dehydration stage T D Second, and the high-speed dehydration step performed later includes controlling the washing machine to alternately perform a normal high-speed dehydration stepSegment T H Second and noise reduction dehydration stage T D And seconds.
8. The dehydration control method of a washing machine according to claim 1, wherein, when the washing machine performs the last dehydration, the last dehydration step is to control a motor of the washing machine to rotate at a speed n for a certain time H And (5) operating.
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