CN113944034A - Control method of washing machine and washing machine - Google Patents

Control method of washing machine and washing machine Download PDF

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Publication number
CN113944034A
CN113944034A CN202010695453.6A CN202010695453A CN113944034A CN 113944034 A CN113944034 A CN 113944034A CN 202010695453 A CN202010695453 A CN 202010695453A CN 113944034 A CN113944034 A CN 113944034A
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CN
China
Prior art keywords
washing machine
water
water level
level value
collecting device
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Withdrawn
Application number
CN202010695453.6A
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Chinese (zh)
Inventor
才智
高秋英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Washing Machine Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Priority to CN202010695453.6A priority Critical patent/CN113944034A/en
Publication of CN113944034A publication Critical patent/CN113944034A/en
Withdrawn legal-status Critical Current

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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 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
    • 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 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08—Draining of washing liquids
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The invention discloses a control method of a washing machine and the washing machine, wherein the washing machine comprises an inner barrel capable of independently holding water and a water collecting device for collecting water discharged by the inner barrel in a washing process, and the washing machine controls the water discharge and/or dehydration of the washing machine according to the change of a water level value and/or a water level value in the water collecting device. The invention controls the drainage and/or dehydration of the washing machine through the change of the water level value and/or the water level value in the water collecting device, so that the switching of the washing machine between the drainage and dehydration procedures is more reasonable, the drainage and dehydration time of the washing machine is shortened, the drainage and dehydration efficiency of the washing machine is improved, meanwhile, whether the drainage of the washing machine is abnormal is judged through the change of the water level value, the washing machine is controlled to execute different drainage and dehydration procedures according to different drainage conditions, the water in the water collecting device is ensured to be fully drained, and the washing water stored in the water collecting device is avoided.

Description

Control method of washing machine and washing machine
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a control method of a washing machine and the washing machine.
Background
At present, the full-automatic washing machine is widely used and is favored by more and more people. Full-automatic washing machine includes outer bucket and sets up the interior bucket in outer bucket, is provided with the dehydration hole on the lateral wall of interior bucket, and washing machine is when the washing finishes, and washing machine need be discharged the water in the bucket, then with the clothing dehydration, its process as follows:
during dehydration, the driving device drives the inner barrel to rotate, and moisture in clothes is discharged to the outer barrel from dehydration holes on the side wall of the inner barrel and water drainage holes at the bottom under the action of centrifugal force; when the water is drained, the drain valve is opened, and the water flow between the outer barrel and the inner barrel is drained out of the washing machine through the water outlet, the drain valve and the drain pipe at the bottom of the outer barrel in sequence. During the dewatering and water draining process, the water levels inside the inner tub and the outer tub are maintained to be consistent until the water inside the inner tub flows downwards, flows into the outer tub from the water draining holes in the bottom of the inner tub and is drained from the water draining holes in the bottom of the outer tub.
The above washing machine has the following problems in operation:
1. stains are easily accumulated on the inner wall surface of the outer barrel and the outer wall surface of the inner barrel, and secondary pollution is caused to clothes when the next washing is carried out;
2. when washing/rinsing, water is required to be filled between the inner barrel and the outer barrel, and the water does not participate in washing, so that waste of water resources is caused.
Therefore, a nonporous inner barrel washing machine appears in the market, and the inner barrel body of the nonporous inner barrel washing machine is designed to be closed, so that the inner barrel can independently contain washing water during washing/rinsing, water is prevented from being stored between the inner barrel and the outer barrel, and the problem of dirt collection and dirt collection between the inner barrel and the outer barrel is solved.
The upper part of the closed area of the inner barrel body is provided with a dewatering hole, and the position of the dewatering hole is higher than the highest water level in the inner barrel body, which can contain water. Thus, the washing water is only inside the inner tub during washing/rinsing; during dewatering, the inner barrel rotates at high speed, and water in the inner barrel rises to the dewatering hole along the barrel wall under the centrifugal force to be dewatered.
The washing machine with the non-porous inner barrel also comprises a water collecting device with an open water collecting cavity, wherein at least the barrel bottom of the inner barrel is arranged in the water collecting cavity and is used for collecting and discharging water discharged from the inner barrel.
The existing nonporous inner barrel washing machine does not monitor the conditions of the washing machine during drainage and dehydration and regulates and controls the drainage and dehydration of the washing machine according to the monitored conditions, so that the drainage and dehydration efficiency of the washing machine is lower; meanwhile, the water level in the water collecting device is not monitored, when the drainage of the washing machine fails, the washing machine cannot be controlled to adjust the drainage and dehydration programs, and users cannot be informed of abnormal drainage in time, so that the drainage and dehydration efficiency is seriously affected, residual water possibly exists in the water collecting device, and troubles are brought to the users.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to overcome the problems that the prior imperforate inner barrel washing machine has low dewatering/drainage efficiency and poor effect because the conditions of drainage and dewatering are not monitored, and a large amount of residual water possibly accumulates in a water collecting device.
In order to solve the technical problems, the invention adopts the technical scheme that: a control method of a washing machine comprises an inner barrel capable of independently containing water and a water collecting device for collecting water discharged from the inner barrel in a washing process, wherein the washing machine controls water discharge and/or dehydration of the washing machine according to the water level value and/or the change of the water level value in the water collecting device.
Further, the washing machine has a first preset water level value f0And a first preset drainage time t1；
Water level value f in water collecting device obtained after washing1＞f0In time, the washing machine is controlled to firstly drain water t1Dehydrating after the time;
water level value f in water collecting device obtained after washing1≤f0And when the washing machine is in operation, the washing machine is controlled to dewater.
Further, the washing machine has a second preset water level value f0' and a second preset drainage time t1', said f0′＞f0，t1′＞t1；
When the water level value f in the water collecting device is obtained1＞f0At' time, the washing machine is controlled to drain water t1' dehydration is carried out later;
when the water level value f in the water collecting device is obtained0＜f1≤f0At' time, the washing machine is controlled to drain water t1Then dehydrating.
Further, the washing machine is controlled to obtain a water level value change rate a in the water collecting device in the water discharging process, and a first water level value change rate a is preset0；
When the obtained water level value change rate a in the water collecting device is less than or equal to a0If so, judging that the drainage of the washing machine is abnormal;
when the obtained water level value change rate a in the water collecting device is more than a0And if so, controlling the washing machine to continuously drain water.
Further, the washing machine has a second water level variation rate a0', said a0′＜a0；
When the water level value variation rate a in the water collecting device is obtained0′≤a≤a0Meanwhile, controlling the drainage time of the washing machine to increase by delta t;
when the obtained water level value change rate a in the water collecting device is less than a0' at this time, the washing machine is controlled to stop operating.
Further, the washing machine presets a first dehydrating time t2A second dehydration time t3A first preset water level value f0And a first preset drainage time t1In the dewatering process of the washing machine, dewatering t2Then, the water level value f in the water collecting device is obtained2；
When the water level value f in the water collecting device is obtained2＞f0If so, judging that the drainage is abnormal, controlling the washing machine to stop dewatering and start drainage, wherein the drainage time is t1；
When the water level value f in the water collecting device is obtained2≤f0When the water is not used, the washing machine is controlled to continue to dewater for t3。
Further, presetting a first water level difference value delta f;
when the drainage is abnormal, f is2-f0When the water discharge time is less than or equal to delta f, controlling the water discharge time of the washing machine to be increased by delta t;
when f is2-f0And when the current time is more than delta f, controlling the washing machine to stop running.
Further, presetting a second water level difference value delta f ', wherein delta f' is less than delta f;
when the drainage is abnormal, when delta f' is less than or equal to f2-f0When the water discharge time is less than or equal to delta f, controlling the water discharge time to increase delta t;
when f is2-f0If < Δ f ', the drain time is controlled to increase by Δ t ', where Δ t ' < Δ t.
Further, after the washing machine finishes dewatering, the water level value f in the water collecting device is obtained3The washing machine having a first preset water level value f0And a first preset drainage time t1；
When the water level value f in the water collecting device3＜f0When the washing machine is started, controlling the washing machine to stop running;
when the water level value f in the water collecting device3≥f0At the same time, the drainage t of the washing machine is controlled1And then stopping the operation.
The invention also provides a washing machine, which is controlled by the control method of the washing machine.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. The drainage and/or dehydration of the washing machine are controlled through the change of the water level value and/or the water level value in the water collecting device, so that the switching between the drainage and dehydration programs of the washing machine is more reasonable, the drainage and dehydration time of the washing machine is shortened, the drainage and dehydration efficiency of the washing machine is improved, meanwhile, whether the drainage of the washing machine is abnormal is judged through the change of the water level value, the washing machine is controlled to execute different drainage and dehydration programs according to different drainage conditions, the water in the water collecting device is ensured to be fully drained, and the phenomenon that washing water is stored in the water collecting device is effectively avoided.
2. When the water level value in the water collecting device is higher, the washing machine is controlled to drain water for a period of time and then dewater, so that the water in the water collecting device can be fully drained; when the water level value in the water collecting device is lower, the water is not required to be drained firstly, the washing machine is directly controlled to dewater, and the dewatering/draining time of the washing machine is shortened.
3. According to the invention, the higher the water level value is, the longer the corresponding drainage time is, and the lower the water level value is, the shorter the corresponding drainage time is, so that the drainage time is reasonably controlled, and the drainage efficiency is improved.
4. The water level value change rate is compared with the set water level value change rate, when the water level value change rate is lower than the preset water level value change rate, the abnormal drainage of the washing machine is indicated, the drainage time is prolonged, the normal drainage and dehydration of the washing machine are ensured, and residual water in the washing machine is prevented from remaining.
5. The water level value in the water collecting device is judged after the dehydration is finished, when the water level value is lower, the condition that no residual water exists is indicated, the washing machine is controlled to stop running, when the water level value is detected to be larger, the condition that residual water exists in the washing machine is indicated, the washing machine is controlled to drain water for a period of time and then is controlled to stop running, and residual water remaining in the washing machine is effectively avoided.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a flow chart of a control method of the present invention;
FIG. 2 is a flow chart of another control method of the present invention;
FIG. 3 is a flow chart of yet another control method of the present invention;
FIG. 4 is a flow chart of yet another control method of the present invention;
fig. 5 is a schematic view of the structure of the washing machine of the present invention.
In the figure: 1. an inner barrel; 2. and (6) dewatering holes.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a control method of a washing machine and the washing machine, as shown in figure 5, the washing machine is a nonporous inner barrel washing machine. The body of the inner barrel 1 of the non-porous inner barrel washing machine is designed to be closed, so that the inner barrel 1 can independently contain washing water during washing/rinsing.
The upper part of the closed area of the barrel body of the inner barrel 1 is provided with a dehydration hole 2, and the position of the dehydration hole 2 is higher than the highest water level which can contain water in the inner barrel 1. Thus, the washing water is only in the inner tub 1 at the time of washing/rinsing; when dewatering, the inner barrel 1 rotates at high speed, the water in the inner barrel 1 rises to the dewatering holes 2 along the barrel wall under the centrifugal force to be dewatered.
The nonporous inner barrel washing machine also comprises a water collecting device with an open water collecting cavity, at least the bottom of the inner barrel 1 is arranged in the water collecting cavity and is used for collecting and discharging water discharged from the inner barrel.
Specifically, the water collecting device can be an outer barrel of the existing washing machine; or, the water collecting device can be of a half-barrel structure, the barrel bottom of the inner barrel 1 is arranged in the half-barrel structure, and the edge of the barrel opening of the half-barrel structure is lower than the water level line of the highest water level of the inner barrel 1. The dewatering opening 2 is communicated with the water collecting device through a drainage channel and is used for conveying water thrown out by the dewatering opening 2 into the water collecting device through the drainage channel to be discharged.
The invention obtains the water level value in the water collecting device through the water level sensor. Specifically, the higher the water level value in the water collecting device of the washing machine is, the higher the water pressure is, the larger the inductance of the inductance coil in the water level sensor is, and then according to the parallel resonance frequency formula of the inductance and the capacitance: the smaller the resonance frequency is obtained when f is 1/2 pi √ LC, and then the generated resonance frequency is processed by the single chip microcomputer to determine the water level. Namely, the larger the frequency value detected by the water level sensor is, the lower the water level value is; the smaller the frequency value, the higher the water level value.
As shown in fig. 1, the present invention controls the drainage and/or dehydration of the washing machine according to the water level value in the water collecting device and/or the variation of the water level value in the water collecting device. Specifically, when the obtained water level value in the water collecting device is higher, the washing machine is controlled to discharge water; or when the water level value in the water collecting device is higher, controlling the washing machine to drain water firstly and then dewater; when the obtained water level value in the water collecting device is lower or zero, controlling the washing machine to directly dewater; when the obtained water level value changes greatly, controlling the washing machine to drain water or to dewater first and then drain water; and when the acquired water level value changes little, controlling the washing machine to stop draining and dewatering, or controlling the washing machine to prolong the draining time.
The invention controls the drainage and/or dehydration of the washing machine through the change of the water level value and/or the water level value in the water collecting device, so that the switching between the drainage and dehydration programs of the washing machine is more reasonable, the drainage and dehydration time of the washing machine is shortened, and the drainage and dehydration efficiency of the washing machine is improved. Meanwhile, whether the drainage of the washing machine is abnormal is judged through the change of the water level value, and the washing machine is controlled to execute different drainage and dehydration programs according to different drainage conditions, so that the water in the water collecting device is ensured to be fully drained, and the washing water stored in the water collecting device is effectively avoided.
As an embodiment of the present invention, as shown in FIG. 1, the washing machine has a first preset water level value f0And a first preset drainage time t1. The first preset water level value f0And a first preset drainage time t1The preset value is factory preset value, or can be set manually.
Water level value f in water collecting device obtained after washing1＞f0In time, the washing machine is controlled to firstly drain water t1After a time, dehydration is performed, said t1It can be 1 min. I.e. the water level value f in the water collecting device1Higher than a first predetermined water level value f0In the time, the dewatering is controlled after the water is drained. When the water collecting device is an outer barrel, water in the water collecting device is prevented from splashing back into the inner barrel, and the dewatering/drainage efficiency and dewatering/drainage quality of the washing machine are reduced; when water-collecting device was the half bucket, avoided the water level in the half bucket too high, submerged drainage channel's mouth of pipe, leaded to being difficult for flowing out from drainage channel by dehydration hole 2 discharged water, seriously reduced drainage efficiency.
Water level value f in water collecting device obtained after washing1≤f0And when the washing machine is in operation, the washing machine is controlled to dewater. That is to sayWhen the water level value f in the water collecting device1Is lower than a first preset water level value f0In the process, the dehydration is directly carried out without draining water first, so that the dehydration/drainage time is saved, and the dehydration/drainage efficiency is improved.
As another embodiment of the present invention, as shown in FIG. 2, the washing machine has a second preset water level value f0' and a second preset drainage time t1', said f0′＞f0，t1′＞t1. The second preset water level value f0' and a second preset drainage time t1' is factory default, or can be set manually.
Water level value f in water collecting device obtained after washing1≤f0When the washing machine is used, the washing machine is controlled to be dehydrated;
water level value f in water collecting device obtained after washing0＜f1≤f0At' time, the washing machine is controlled to drain water t1Then dehydrating;
water level value f in water collecting device obtained after washing1＞f0At' time, the washing machine is controlled to drain water t1' dehydration is carried out later;
in this embodiment, the water level value f in the water collecting device1＞f0When the water level is higher, and f0＜f1≤f0The water level is relatively low. When f is1＞f0Drainage time t corresponding to' hour1' greater than f0＜f1≤f0Drainage time t corresponding to' hour1. I.e. a higher water level in the water collecting device indicates more water in the water collecting device, the longer the control drain time. The control method can reasonably control the drainage time, and avoids the problems that the water level in the water collecting device is low, the drainage time is long and the drainage time is wasted; the water level is high, the drainage time is short, and the water in the water collecting device is not completely drained, and the water which is not completely drained is splashed back to the inner tub, so that the dewatering/drainage efficiency and quality of the washing machine are reduced.
As an embodiment of the present invention, as shown in FIG. 3, the washing machine is controlled to be calculated by the water level sensor during the draining processTaking the change rate a of the water level value in the water collecting device within a certain time, wherein the change rate a of the water level value refers to the change amount of the water level value within unit time, and presetting a first water level value change rate a0. Wherein, the water level value change rate a is high, namely the water level changes faster, which indicates that the washing machine drains water smoothly. The low water level value change rate a means that the water level changes slowly, which indicates that the washing machine drains water unsmoothly, and the faults such as the drain pipeline is blocked or the drain pipe is not completely opened occur.
Specifically, in the drainage process of the washing machine, when the acquired water level value change rate a in the water collecting device is less than or equal to a0And if so, judging that the drainage of the washing machine is abnormal, namely the washing machine drains abnormally at the moment.
When the obtained water level value change rate a in the water collecting device is more than a0And if the water level is normal, controlling the washing machine to continuously drain water.
Further, the washing machine has a second water level variation rate a0', said a0′＜a0；
When the water level value variation rate a in the water collecting device is obtained0′≤a≤a0Meanwhile, controlling the drainage time of the washing machine to increase by delta t; i.e. rate of change of water level value a0′≤a≤a0In time, it indicates that the water level value of the washing machine changes slowly, and the washing machine may be blocked or the drain pipe may not be completely laid or opened. Therefore, the water in the water collecting device is fully discharged by controlling the water discharging time to be increased by delta t, and meanwhile, the washing machine is controlled to give an alarm to remind a user of the problem in water discharging, so that the user can conveniently overhaul.
When the obtained water level value change rate a in the water collecting device is less than a0' of these, it is indicated that the water level in the water collecting device varies very little or hardly, and there may be cases where the drain valve is forgotten to be opened or the drain pipe is not laid down or the drain pipe is completely blocked. Under the condition, the washing machine is controlled to stop running, so that water in the washing machine cannot overflow out, and meanwhile, the washing machine is controlled to give an alarm to remind a user of timely handling the fault.
As another embodiment of the present invention, as shown in FIG. 4, a washing machine is providedSetting a first dehydration time t2A second dehydration time t3A first preset water level value f0And a first preset drainage time t1In the dewatering process of the washing machine, dewatering t2Then, the water level value f in the water collecting device is obtained2；
When the water level value f in the water collecting device is obtained2＞f0If so, judging that the drainage is abnormal, controlling the washing machine to stop dewatering and start drainage, wherein the drainage time is t1；
When the water level value f in the water collecting device is obtained2≤f0When the water is not used, the washing machine is controlled to continue to dewater for t3。
The present embodiment determines and controls the drainage state of the washing machine during the dehydration process when the water level value f is detected during the dehydration process2Greater than a first preset water level value f0In time, it is shown that the drainage is abnormal in the dehydration process. When drainage is abnormal in the dehydration process, the washing machine is controlled to stop dehydration and start drainage, so that the phenomenon that the washing machine still continuously dehydrates to cause water in the washing machine to overflow out when the drainage is abnormal is avoided, and the normal operation of the dehydration process is ensured.
As still another embodiment of the present invention, as shown in fig. 4, a second water level difference value Δ f 'is preset, where Δ f' < Δ f:
when the drainage is abnormal, the water level value f in the water collecting device is obtained and calculated through the water level sensor2And a first predetermined water level value f0The difference between them.
When the water level value f in the water collecting device2And a first predetermined water level value f0The difference value delta f' between the two is less than or equal to f2-f0When the water discharge time is less than or equal to delta f, controlling the water discharge time to increase delta t;
when the water level value f in the water collecting device2And a first predetermined water level value f0Difference f between2-f0If < Δ f ', the drain time is controlled to increase by Δ t ', where Δ t ' < Δ t.
In this example, when Δ f' is ≦ f2-f0When the value is less than or equal to delta f, the water level value f in the water collecting device is indicated2With a first predetermined amount of waterBit value f0The difference between f is large when2-f0< Δ f' indicates the water level value f in the water collecting device2And a first predetermined water level value f0The difference between them is relatively small. When delta f' is less than or equal to f2-f0When the f is less than or equal to delta f, the corresponding drainage time increment delta t is greater than when f is less than or equal to delta f2-f0When the drainage time is less than delta f ', the corresponding drainage time is increased by delta t', namely the difference value is larger, the drainage effect is poorer, the corresponding drainage time needs to be prolonged more, the drainage time of the washing machine is reasonably controlled, and the dewatering/drainage efficiency is improved on the basis of ensuring higher dewatering/drainage quality of the washing machine.
In addition, after the washing machine finishes dewatering, the water level value f in the water collecting device is obtained3The washing machine having a first preset water level value f0And a first preset drainage time t1；
When the water level value f in the water collecting device3＜f0And when the washing machine is in operation, controlling the washing machine to stop operating.
When the water level value f in the water collecting device3≥f0At the same time, the drainage t of the washing machine is controlled1And then stopping the operation.
This embodiment is through carrying out water level detection to the interior bucket after the dehydration, and whether further judge to have the residual water in the water-collecting device, water level value f in the water-collecting device3≥f0The time indicates that residual water exists in the water collecting device, the washing machine is controlled to discharge the residual water in time, and the pollution of the residual water accumulated in the water collecting device to the washing machine is avoided.
The invention also provides a washing machine which is controlled by adopting the control method of any one scheme or the combination scheme. The washing machine controlled by the control method can effectively improve the dewatering/drainage efficiency, improve the dewatering/drainage quality and ensure that clothes can be fully dewatered. Meanwhile, in the dehydration process, water in the water collecting device can be discharged in time, so that secondary pollution of the water in the water collecting device to clothes in the inner barrel is avoided.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A control method of a washing machine, the washing machine includes an inner tub capable of independently containing water during a washing process and a water collecting device for collecting water discharged from the inner tub, characterized in that: the washing machine controls the drainage and/or dehydration of the washing machine according to the water level value and/or the change of the water level value in the water collecting device.
2. The control method of a washing machine as claimed in claim 1, wherein: the washing machine has a first preset water level value f0And a first preset drainage time t1；
Water level value f in water collecting device obtained after washing1＞f0In time, the washing machine is controlled to firstly drain water t1Then dehydrating;
water level value f in water collecting device obtained after washing1≤f0And when the washing machine is in operation, the washing machine is controlled to dewater.
3. A control method of a washing machine according to claim 2, characterized in that: the washing machine has a second preset water level value f0' and a second preset drainage time t1', said f0′＞f0，t1′＞t1；
When the water level value f in the water collecting device is obtained1＞f0At' time, the washing machine is controlled to drain water t1' dehydration is carried out later;
when the water level value f in the water collecting device is obtained0＜f1≤f0Hour, control washing machineDrainage t1Then dehydrating.
4. The control method of a washing machine as claimed in claim 1, wherein: controlling the washing machine to obtain the water level value change rate a in the water collecting device in the drainage process, and presetting a first water level value change rate a0；
When the obtained water level value change rate a in the water collecting device is less than or equal to a0If so, judging that the drainage of the washing machine is abnormal;
when the obtained water level value change rate a in the water collecting device is more than a0And if so, controlling the washing machine to continuously drain water.
5. The control method of a washing machine as claimed in claim 4, wherein: the washing machine has a second water level variation rate a0', said a0′＜a0；
When the water level value variation rate a in the water collecting device is obtained0′≤a≤a0Meanwhile, controlling the drainage time of the washing machine to increase by delta t;
when the obtained water level value change rate a in the water collecting device is less than a0' at this time, the washing machine is controlled to stop operating.
6. A control method of a washing machine according to any one of claims 1-5, characterized in that: the washing machine presets a first dehydration time t2A second dehydration time t3A first preset water level value f0And a first preset drainage time t1In the dewatering process of the washing machine, dewatering t2Then, the water level value f in the water collecting device is obtained2；
When the water level value f in the water collecting device is obtained2＞f0If so, judging that the drainage is abnormal, controlling the washing machine to stop dewatering and start drainage, wherein the drainage time is t1；
When the water level value f in the water collecting device is obtained2≤f0When the water is not used, the washing machine is controlled to continue to dewater for t3。
7. The control method of a washing machine as claimed in claim 6, wherein: presetting a first water level difference value delta f;
when the drainage is abnormal, f is2-f0When the water discharge time is less than or equal to delta f, controlling the water discharge time of the washing machine to be increased by delta t;
when f is2-f0And when the current time is more than delta f, controlling the washing machine to stop running.
8. The control method of a washing machine as claimed in claim 7, wherein: presetting a second water level difference value delta f ', wherein delta f' is less than delta f;
when the drainage is abnormal, when delta f' is less than or equal to f2-f0When the water discharge time is less than or equal to delta f, controlling the water discharge time to increase delta t;
when f is2-f0If < Δ f ', the drain time is controlled to increase by Δ t ', where Δ t ' < Δ t.
9. The control method of a washing machine as claimed in claim 1, wherein: after the washing machine finishes dewatering, acquiring the water level value f in the water collecting device3The washing machine having a first preset water level value f0And a first preset drainage time t1；
When the water level value f in the water collecting device3＜f0When the washing machine is started, controlling the washing machine to stop running;
when the water level value f in the water collecting device3≥f0At the same time, the drainage t of the washing machine is controlled1And then stopping the operation.
10. A washing machine controlled by the control method of any one of claims 1 to 9.
CN202010695453.6A 2020-07-16 2020-07-16 Control method of washing machine and washing machine Withdrawn CN113944034A (en)

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CN105951354A (en) * 2016-06-29 2016-09-21 无锡小天鹅股份有限公司 Washing control method of washing machine and washing machine
CN108179587A (en) * 2018-02-12 2018-06-19 青岛海尔洗衣机有限公司 A kind of washing machine arranges residual water controling method and washing machine
CN108396509A (en) * 2018-05-18 2018-08-14 青岛海尔洗衣机有限公司 A kind of control method and washing machine of detection washing machine drainage
CN109208241A (en) * 2018-10-29 2019-01-15 青岛海尔洗衣机有限公司 Draining abnormality detection control method and washing facility for washing facility
CN109468795A (en) * 2017-09-08 2019-03-15 青岛海尔洗衣机有限公司 A kind of washing machine drainage control method and washing machine
CN110144700A (en) * 2018-02-12 2019-08-20 青岛海尔洗衣机有限公司 A kind of dehydration controlling method of washing machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994228A (en) * 2009-08-26 2011-03-30 海尔集团公司 Control method of washing machine
CN105671861A (en) * 2016-03-16 2016-06-15 海信（山东）冰箱有限公司 Washing machine control method, controller and washing machine
CN105951354A (en) * 2016-06-29 2016-09-21 无锡小天鹅股份有限公司 Washing control method of washing machine and washing machine
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Application publication date: 20220118