CN108866931B - Dehydration control method and system of washing machine and washing machine comprising system - Google Patents
Dehydration control method and system of washing machine and washing machine comprising system Download PDFInfo
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- CN108866931B CN108866931B CN201710337705.6A CN201710337705A CN108866931B CN 108866931 B CN108866931 B CN 108866931B CN 201710337705 A CN201710337705 A CN 201710337705A CN 108866931 B CN108866931 B CN 108866931B
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- water level
- dewatering
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- 230000018044 dehydration Effects 0.000 title claims abstract description 57
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 53
- 238000005406 washing Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 138
- 208000005156 Dehydration Diseases 0.000 claims description 49
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
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Classifications
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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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- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
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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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
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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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/087—Water level measuring or regulating devices
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- D06F2202/085—
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- D06F2204/065—
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention belongs to the technical field of washing machines, and particularly provides a dehydration control method and system and a washing machine comprising the control system. The invention aims to solve the problem that the existing dehydration control method cannot solve the problem that the water outlet holes are blocked by waterproof clothes. To this end, the dehydration control method of the present invention comprises the steps of: starting a dehydration program; detecting the change of the water level of the outer cylinder to judge whether the dewatering cylinder dewaters normally; and controlling the rotating speed of the dewatering cylinder according to the detected water level change. By detecting the change of the water level of the outer barrel, whether the water in the dewatering barrel flows out of the outer barrel through the water outlet hole of the dewatering barrel can be judged, whether waterproof clothes block the water outlet hole of the dewatering barrel is further judged, and when the water outlet hole is judged to be normal, dewatering is carried out at a normal rotating speed; when the water outlet is judged to be blocked by waterproof clothes, the rotating speed of the dewatering barrel is reduced, so that the adverse conditions of severe vibration and huge noise of the washing machine are effectively avoided, and the dewatering effect of the clothes is greatly improved.
Description
Technical Field
The invention belongs to the technical field of washing machines, and particularly provides a dehydration control method and system of a washing machine and the washing machine comprising the system.
Background
The washing machine is a clean electrical appliance for washing clothes by using electric energy, and becomes an important household electrical appliance in daily life with the acceleration of life pace and the high requirement of people on living comfort. The existing washing machine generally has a dehydration function, so that the washed clothes can be dried more quickly, and the demand of people on fast pace of life is met. However, when the washing machine dehydrates some waterproof clothes, the waterproof clothes block the water outlet holes of the dehydration barrel, and the dehydration effect of the washing machine is greatly reduced.
The existing washing machine mostly rotates at a low speed in the aspect of dehydration control, then discharges water flowing out of a barrel, and increases the rotating speed after preset time.
Accordingly, there is a need in the art for a novel dehydration control method of a washing machine to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above problems in the prior art, i.e. to solve the problem that the existing dehydration control method cannot detect whether waterproof clothes block a water outlet hole, so that a dehydration barrel cannot perform normal dehydration, vibration and poor dehydration effect, the invention provides a dehydration control method of a washing machine, wherein the washing machine comprises a dehydration barrel and an outer barrel for accommodating the dehydration barrel, and the method comprises the following steps: starting a dehydration program; detecting a change in the water level in the tub; and controlling the rotating speed of the dewatering cylinder according to the detected water level change.
In a preferred embodiment of the above-described spin-drying control method of a washing machine, the step of detecting a change in the water level in the outer tub may include: detecting a first water level value at a first moment in the outer barrel; detecting a second water level value in the outer barrel at a second moment; the step of controlling the rotation speed of the dewatering drum according to the detected water level change specifically includes: comparing a first difference of the first and second water level values to a first threshold; and when the first difference value is larger than or equal to the first threshold value, reducing the rotating speed of the dewatering cylinder.
In a preferable embodiment of the above-mentioned dehydration control method for a washing machine, when the first difference is smaller than the first threshold, the washing machine dehydrates at a predetermined normal rotation speed.
In a preferable embodiment of the above-mentioned dehydration control method of the washing machine, when the first difference is smaller than the first threshold, the dehydration control method of the laundry further includes: detecting a third water level value in the outer barrel at a third moment; comparing a second difference of the first and third water level values to a second threshold; and when the second difference value is larger than or equal to the second threshold value, reducing the rotating speed of the dewatering cylinder.
In a preferable embodiment of the above-mentioned dehydration control method for a washing machine, when the second difference is smaller than the second threshold, the washing machine dehydrates at a predetermined normal rotation speed.
The present invention also provides a dehydration control system of a washing machine including a dehydration tub and an outer tub accommodating the dehydration tub, the system including: a water level monitoring module for detecting a water level value in the tub; the judging module is used for judging whether the dewatering drum is normally dewatered or not based on the detected change of the water level value; and a control module for controlling the rotation speed of the dewatering cylinder according to the judgment result of the judgment module.
In a preferred embodiment of the above-mentioned dewatering control system of the washing machine, the determining module determines whether the dewatering drum is normally dewatered by performing the following steps: acquiring a first water level value of the outer barrel at a first moment from the water level monitoring module; acquiring a second water level value of the outer barrel at a second moment from the water level monitoring module; comparing a first difference of the first and second water level values to a first threshold; and when the first difference value is larger than or equal to the first threshold value, judging that the dewatering cylinder does not dewater normally.
In a preferable embodiment of the above-mentioned dewatering control system for a washing machine, when the first difference is smaller than the first threshold, the determining module further performs the following steps: acquiring a third water level value of a third moment in the outer cylinder; comparing a second difference of the first and third water level values to a second threshold; and when the second difference value is larger than or equal to the second threshold value, judging that the dewatering cylinder does not dewater normally.
In the above preferred technical solution of the dewatering control system of the washing machine, if it is determined that the dewatering drum is not normally dewatered, the control module controls the dewatering drum to reduce the rotation speed.
The invention also provides a washing machine comprising a dewatering control system, wherein the dewatering control system is any one of the dewatering control systems according to the invention.
As can be understood by those skilled in the art, in the preferred technical scheme of the invention, whether the water in the dewatering barrel normally flows out of the outer barrel through the water outlet hole of the dewatering barrel can be judged by detecting the change of the water level of the outer barrel, so that whether waterproof clothes block the water outlet hole of the dewatering barrel can be judged, and when the water outlet hole is judged to be normal, the dewatering is continued at the normal rotating speed; when the water outlet is judged to be blocked by waterproof clothes, the rotating speed of the dewatering barrel is reduced, so that the adverse conditions of severe vibration and huge noise of the washing machine are effectively avoided, and the dewatering effect of the clothes is greatly improved.
Drawings
Fig. 1 is a flowchart of a dehydration control method of a washing machine of the present invention;
fig. 2 is a structural view of a dehydration control system of a washing machine of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring first to fig. 1, fig. 1 is a flowchart of a dehydration control method of a washing machine including a dehydration tub and an outer tub accommodating the dehydration tub in accordance with the present invention. As shown in fig. 1, the method specifically includes the following steps:
s100: starting a dehydration program;
s101: detecting a first water level value at a first moment in the outer barrel;
s102: detecting a second water level value in the outer barrel at a second moment;
s103: judging whether a first difference value between the first water level value and the second water level value is smaller than a first threshold value, if so, executing a step S104;
s104: dehydrating at normal rotation speed;
s105: detecting a third water level value in the outer barrel at a third moment;
s106: judging whether a second difference value between the first water level value and the third water level value is smaller than a second threshold value, if so, executing the step S108;
s108: dehydrating at normal rotation speed;
s109: finishing dehydration;
further, in step S103, it is determined whether a first difference between the first water level value and the second water level value is smaller than a first threshold, and if not, step S107 is performed, i.e. the rotation speed of the dewatering cylinder is reduced, for example, the rotation speed of the dewatering cylinder is reduced to a predetermined low rotation speed;
in step S106, it is determined whether a second difference between the first water level value and the third water level value is less than a second threshold value, and if not, step S107 is performed, in which the rotation speed of the dewatering cylinder is reduced, for example, to a predetermined low rotation speed.
Specifically, a dewatering program is started firstly, then the water level value in the outer drum of the washing machine is detected immediately in real time, and the water level value is defined as a first water level value which represents the initial water level of the outer drum of the washing machine when the washing machine starts to work, and whether the water outlet holes are blocked is judged by comparing the water level values at other moments with the first water level value, so that the dewatering barrel is controlled to dewater at different rotating speeds.
The rotating speed is divided into a speed division in the early stage and a speed division in the later stage of dehydration, so that the water level value of the outer barrel of the washing machine in the early stage of dehydration is detected and defined as a second water level value.
Next, comparing the difference between the first water level value and the second water level value with a first threshold value, defining the water level difference as a first water level difference value, and if the first water level difference value is smaller than the first threshold value, it indicates that the water level of the outer barrel is descending at a normal speed, i.e. it indicates that the water in the dewatering barrel continuously flows to the outer barrel, so that it can be determined that the water outlet hole of the dewatering barrel is not blocked or the blocked part is limited, and the dewatering barrel is in a normal dewatering state, at this time, the step S104 is proceeded, i.e. dewatering at a normal speed.
Then, the water level value of the outer tub of the washing machine in the post-dehydration period is detected and defined as a third water level value.
Then, comparing the difference between the first water level value and the third water level value with a second threshold value, defining the water level difference as a second water level difference value, if the second water level difference value is smaller than the second threshold value, the speed of the water level reduction of the outer barrel is normal, and the water in the dewatering barrel continuously flows to the outer barrel, so that the judgment can be made that the water outlet hole of the dewatering barrel is not blocked or the blocked part is limited, the dewatering barrel is in a normal dewatering state, and at the moment, the step S108 is entered, namely, the dewatering at the normal speed is continued until the final dewatering is finished.
On the other hand, if the first water level difference is greater than or equal to the first threshold, it means that the water level of the outer tub drops faster than the normal state, it means that the water in the dewatering tub is blocked and accumulated in the dewatering tub, so that it can be determined that the water outlet of the dewatering tub is seriously clogged, and at this time, the flow proceeds to step S105, i.e., low-speed dewatering (even the dewatering tub may be temporarily stopped to rotate according to circumstances) until the final dewatering is finished, and the dewatering work is completed. The advantage of selecting low-speed dehydration lies in that can slow down effectively or avoid clothing to block up the apopore and the clothing distributes inhomogeneous, the violent vibrations of washing machine, washing machine noise are huge and the not good problem of dehydration effect that leads to.
Similarly, if the second water level difference is greater than or equal to the second threshold, it means that the water level of the outer tub drops faster than the normal state, it means that the water in the dewatering tub is blocked and accumulated in the dewatering tub, and it can be determined that the water outlet of the dewatering tub is seriously clogged, and then the flow goes to step S105, i.e., low-speed dewatering, until the final dewatering is finished, and the dewatering work is completed.
It will be understood by those skilled in the art that although the above description has been made with respect to the detection of the water level values of the tub in the early and late stages of dewatering as the preferred embodiment, it is obvious that the water level values of the tub corresponding to more time periods can be detected without departing from the basic principle of the present invention, and those skilled in the art can adjust this as required.
By detecting the water level values of the outer barrel corresponding to different time periods and comparing the difference between the initial water level value and the real-time water level value with the threshold value of the time period, whether the water outlet hole of the dewatering barrel is blocked by clothes can be accurately judged, so that the rotating speed of the dewatering barrel in the dewatering process can be selected according to different conditions, namely when the water outlet hole is judged not to be blocked by waterproof clothes, dewatering is carried out at a normal rotating speed; when the water outlet is judged to be blocked by waterproof clothes, the rotating speed of the dewatering barrel is reduced, and the control method can effectively avoid the problems that the dewatering barrel cannot dewater normally due to the blockage of the water outlet by the clothes, the clothes are uneven, the washing machine shakes violently, the noise is great and the dewatering effect is not ideal.
Referring finally to fig. 2, fig. 2 is a schematic view of a dehydration control system of a washing machine of the present invention. As shown in fig. 2, the dehydration control system includes: the water level monitoring module, the judging module and the control module. Specifically, the water level detection module is used for detecting the water level value of the outer barrel; the judging module can judge whether the washing machine is normally dehydrated or not based on the detected change of the water level value; the control module can control the rotating speed of the dewatering barrel according to the judgment result of the judgment module. Specifically, the water level monitoring module is connected with the judging module, and the judging module is connected with the control module. Preferably, the water level monitoring module is a water level pressure sensor.
Further, the water level monitoring module can detect an initial water level value when the dehydration starts and real-time water level values of the outer cylinders in a plurality of time periods in the dehydration process, and sends the obtained water level value to the judging module; the judging module receives the water level value transmitted by the water level monitoring module, compares the difference between the initial water level value and the real-time water level value with the threshold value of the time period according to the water level value detected by the water level monitoring module, can accurately judge whether the water outlet hole of the dewatering barrel is blocked by clothes, and then transmits the processing result to the control module; the control module receives the data sent by the judging module and controls the rotation speed of the dewatering barrel in time, namely when the fact that the water outlet hole of the dewatering barrel is blocked and normal dewatering cannot be conducted is judged, the control module reduces the rotation speed of the dewatering barrel, and when the fact that the water outlet hole of the dewatering barrel is not blocked and normal dewatering is conducted is judged, the control module controls the dewatering barrel to rotate at the normal rotation speed.
The invention also provides a washing machine, which comprises a dewatering barrel, an outer barrel for accommodating the dewatering barrel and a dewatering control system, wherein the dewatering control system is the dewatering control system according to the invention.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (7)
1. A dehydration control method of a washing machine including a dehydration tub and an outer tub accommodating the dehydration tub, characterized by comprising the steps of:
starting a dehydration program;
detecting a change in the water level in the tub; the step of "detecting a change in water level in the outer tub" specifically includes: detecting a first water level value in the tub at a first moment of starting a dewatering program; detecting a second water level value in the outer barrel at a second moment in the early stage of dehydration;
judging whether the dewatering barrel is in a normal dewatering state or a water outlet hole of the dewatering barrel is blocked according to the detected water level change, and controlling the rotating speed of the dewatering barrel; the step of judging whether the dewatering barrel is in a normal dewatering state or whether the water outlet hole of the dewatering barrel is blocked and controlling the rotating speed of the dewatering barrel according to the detected water level change specifically comprises the following steps: comparing a first difference of the first and second water level values to a first threshold; and when the first difference value is larger than or equal to the first threshold value, judging that the water outlet hole of the dewatering barrel is blocked, and reducing the rotating speed of the dewatering barrel.
2. The dehydration control method of a washing machine according to claim 1,
and when the first difference value is smaller than the first threshold value, dehydrating at a preset normal rotating speed.
3. The dehydration control method of a washing machine according to claim 2, wherein when the first difference value is less than the first threshold value, the dehydration control method further comprises the steps of:
detecting a third water level value in the outer barrel at a third moment;
comparing a second difference of the first and third water level values to a second threshold;
and when the second difference value is larger than or equal to the second threshold value, reducing the rotation speed of the dewatering barrel.
4. The dehydration control method of a washing machine according to claim 3,
and when the second difference value is smaller than the second threshold value, dehydrating at a preset normal rotating speed.
5. A dehydration control system of a washing machine including a dehydration tub and an outer tub accommodating the dehydration tub, characterized by comprising:
a water level monitoring module for detecting a water level value in the tub; the water level monitoring module specifically acquires a first water level value in the outer barrel at a first moment when a dehydration program is started, and also specifically acquires a second water level value in the outer barrel at a second moment before dehydration from the water level monitoring module;
a judging module which judges whether the dewatering barrel is in normal dewatering or a water outlet hole of the dewatering barrel is blocked based on the detected change of the water level value; the judging module is specifically configured to compare a first difference between the first water level value and the second water level value with a first threshold; when the first difference value is larger than or equal to the first threshold value, judging that a water outlet hole of the dewatering barrel is blocked;
a control module for controlling the rotation speed of the dewatering barrel according to the judgment result of the judgment module; the control module is specifically used for reducing the rotating speed of the dewatering barrel when the fact that the water outlet hole of the dewatering barrel is blocked is judged.
6. The dehydration control system of a washing machine according to claim 5, wherein when said first difference is smaller than said first threshold, said judging module further performs the steps of:
acquiring a third water level value of a third moment in the outer cylinder;
comparing a second difference of the first and third water level values to a second threshold;
and when the second difference value is larger than or equal to the second threshold value, judging that the dewatering barrel does not dewater normally.
7. A washing machine, characterized in that it comprises a spin-drying control system according to claim 5 or 6.
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| CN201710337705.6A CN108866931B (en) | 2017-05-15 | 2017-05-15 | Dehydration control method and system of washing machine and washing machine comprising system |
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| CN201710337705.6A CN108866931B (en) | 2017-05-15 | 2017-05-15 | Dehydration control method and system of washing machine and washing machine comprising system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110714297B (en) * | 2019-09-02 | 2021-01-29 | 珠海格力电器股份有限公司 | Washing machine dehydration mode control method, computer readable storage medium and washing machine |
| CN112301637B (en) * | 2019-09-02 | 2022-04-01 | 无锡小天鹅电器有限公司 | Washing machine dehydration rotating speed control method and device, washing machine and storage medium |
| CN113136688B (en) * | 2020-01-17 | 2024-01-12 | 佛山市顺德海尔电器有限公司 | Washing machine and control method thereof |
| CN113718468A (en) * | 2020-05-25 | 2021-11-30 | 青岛海尔洗衣机有限公司 | Control method for washing equipment |
| CN113944033B (en) * | 2020-07-17 | 2023-11-10 | 天津海尔洗涤电器有限公司 | Dehydration control method, device and equipment |
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