CN113668184A - Washing machine, dewatering control method and device thereof and electronic equipment - Google Patents
Washing machine, dewatering control method and device thereof and electronic equipment Download PDFInfo
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- CN113668184A CN113668184A CN202111056231.0A CN202111056231A CN113668184A CN 113668184 A CN113668184 A CN 113668184A CN 202111056231 A CN202111056231 A CN 202111056231A CN 113668184 A CN113668184 A CN 113668184A
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- 238000005406 washing Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000018044 dehydration Effects 0.000 claims abstract description 199
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 199
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 128
- 238000011217 control strategy Methods 0.000 claims abstract description 49
- 239000006260 foam Substances 0.000 claims abstract description 15
- 208000005156 Dehydration Diseases 0.000 claims description 192
- 238000001514 detection method Methods 0.000 claims description 14
- 230000001133 acceleration Effects 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims description 2
- 230000003749 cleanliness Effects 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 239000003599 detergent Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
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- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect 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
- 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
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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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/04—Signal transfer or data transmission arrangements
-
- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/18—Condition of the laundry, e.g. nature or weight
-
- 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
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The application provides a washing machine, a dehydration control method and device thereof and electronic equipment, wherein the method comprises the following steps: responding to a dehydration instruction, and acquiring the load capacity in the dehydration barrel; determining a rotating speed control strategy of the washing machine according to the load; predicting the dehydration speed according to a rotating speed control strategy; and determining a drainage strategy according to the dehydration speed, wherein the drainage strategy comprises a drainage interval. The washing machine dehydration control method can reduce the foam in the washing water in the dehydration barrel and improve the cleanliness of the dehydrated objects.
Description
Technical Field
The present disclosure relates to washing machines, and particularly to a washing machine, a dewatering control method and apparatus thereof, and an electronic device.
Background
The current work flow of the drum washing machine generally comprises the following steps: washing process, rinsing process, dewatering process and drying process. Wherein the dehydration process is one of the crucial links in the work flow of the washing machine. However, if the washing water in the dehydration barrel contains more detergent during dehydration, more foam is generated, and the drainage foam and water impact the impeller of the drainage pump to generate semi-water and semi-gas, so that the washing water and the foam in the dehydration barrel cannot be smoothly discharged, and the cleanliness of the dehydrated objects is reduced.
The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
An object of the present application is to provide a dehydration control method capable of improving the cleanliness of a dehydrated material.
Another object of the present application is to provide a washing machine having a structure capable of improving the cleanliness of the objects to be dehydrated.
In order to solve the technical problem, the following technical scheme is adopted in the application:
according to an aspect of the present application, there is provided a dehydration control method of a washing machine, the method including: responding to a dehydration instruction, and acquiring the load capacity in the dehydration barrel; determining a rotating speed control strategy of the washing machine according to the load; predicting the dehydration speed according to a rotating speed control strategy; a drainage strategy is determined to reduce foam in the wash water in the dehydration tub according to the dehydration speed, wherein the drainage strategy includes a drainage interval.
In one embodiment, the washing machine has a first dehydration stage and a second dehydration stage, the first dehydration stage has a lower rotation speed than the second dehydration stage; determining a rotation speed control strategy of the washing machine according to the load, comprising: determining the dewatering times of the intermittent dewatering in the first dewatering stage according to the load; controlling the dehydration barrel to dehydrate and dehydrate at preset dehydration intervals.
In one embodiment, the batch dehydration is periodic dehydration; predicting a dehydration speed according to a rotational speed control strategy, comprising: if one dehydration cycle comprises an acceleration stage and a deceleration stage after the acceleration stage, predicting that the dehydration speed of the acceleration stage is greater than that of the deceleration stage; determining a drainage strategy according to the change condition of the dewatering amount, comprising the following steps: controlling the dewatering tub to drain in the acceleration stage, and controlling the dewatering tub to drain at first preset time intervals in the deceleration stage.
In one embodiment, the second dehydration stage comprises a speed-up stage and a speed-stabilizing stage after the speed-up stage, wherein the dehydration speed of the speed-up stage is higher than that of the speed-stabilizing stage; determining a drainage strategy according to the dehydration speed, comprising: in the speed-up stage, controlling the dewatering barrel to drain water; and in the speed stabilizing stage, controlling the dewatering barrel to drain water at a second preset time interval, wherein the second preset time interval is greater than the first preset time interval.
In one embodiment, the washing machine includes a drain pump for draining wash water thrown out in the spin-drying tub; after determining the drainage strategy according to the dewatering speed, the method further comprises: detecting a water level in the drain pump; and when the water level is lower than the set water level threshold value, closing the drainage pump to store water.
In one embodiment, after responding to the dehydration instruction, the method further comprises: controlling the dewatering barrel to drain water; controlling the dewatering barrel to rotate and shake under the condition that the water level of the dewatering barrel is reduced to a preset water level; acquiring the eccentric amount in the dehydration barrel; and acquiring the load capacity in the dewatering barrel under the condition that the eccentricity is less than or equal to the preset eccentricity upper limit value.
In one embodiment, after predicting the dehydration rate according to the rotational speed control strategy, the method further comprises: detecting the dehydration speed; and correcting the drainage strategy according to the detected dehydration speed.
According to another aspect of the present application, there is provided a washing machine including:
a dewatering barrel;
the load detection device is electrically connected with the dehydration barrel and is used for detecting the load in the dehydration barrel;
a drainage device including a drainage pump for discharging the washing water thrown out of the dehydration tub to the outside of the washing machine;
the control device is electrically connected with the drainage pump, the load detection device and the dewatering barrel and used for determining a rotating speed control strategy according to the load; predicting the dehydration speed according to a rotating speed control strategy; and determining a drainage strategy according to the dehydration speed, and controlling the drainage pump to drain water according to the drainage strategy so as to reduce foam in the washing water in the dehydration barrel.
According to still another aspect of the present application, there is provided a dehydration control apparatus of a washing machine, the apparatus including:
the acquiring unit is used for responding to the dehydration instruction and acquiring the load in the dehydration barrel;
the determining unit is used for determining a rotating speed control strategy of the washing machine according to the load;
the prediction unit is used for predicting the dehydration speed according to the rotating speed control strategy;
a drainage strategy formulation unit for determining a drainage strategy to reduce bubbles in the wash water in the dehydration tub according to the dehydration speed, wherein the drainage strategy includes a drainage interval.
According to still another aspect of the present application, there is also provided an electronic device, including:
a processor;
a memory having a computer readable program stored therein, which when executed by the processor, causes the apparatus to perform a washing machine spin control method as described in any one of the preceding claims.
According to the technical scheme, the beneficial effects of the application are as follows:
in this application, at first carry out the control of stepping through the size of load, the water content difference that utilizes the load of different weights confirms the rotational speed control strategy, and then utilize the dehydration speed difference in the dehydration process in the rotational speed control strategy that each load corresponds to formulate the drainage strategy that each load corresponds respectively, thereby to the meticulous control of the load of each load, avoid causing the state of half water gas, thereby be favorable to the interior washing water of dewatering bucket to discharge smoothly, thereby be favorable to improving the cleanliness factor by the dewatered thing.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 is a schematic structural view of a washing machine according to an embodiment of the present application.
Fig. 2 is a flowchart of a dehydration control method of a washing machine according to an embodiment of the present application.
Fig. 3 is a flowchart of a dehydration control method according to still another embodiment of the present application.
Fig. 4 is a timing diagram of a first slew rate control strategy when the load is a small load according to an embodiment of the present application.
FIG. 5 is a timing diagram illustrating a third speed control strategy when the load is a heavy load according to an embodiment of the present application.
Fig. 5a is an enlarged view of stage t2 in fig. 5.
Fig. 5b is an enlarged view of the stage t3 in fig. 5.
Fig. 6 is a schematic structural diagram of a dehydration control device of a washing machine according to an embodiment of the present application.
Detailed Description
While this application is susceptible of embodiment in different forms, there is shown in the drawings and will herein be described in detail only some specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the application and is not intended to limit the application to that as illustrated herein.
Thus, a feature indicated in this specification is intended to describe one of the features of an embodiment of the application and does not imply that every embodiment of the application must have the described feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.
In the embodiments shown in the drawings, directional references (such as up, down, left, right, front, and rear) are used to explain the structure and movement of the various elements of the present application not absolutely, but relatively. These descriptions are appropriate when the elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indication of these directions changes accordingly.
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.
The preferred embodiments of the present application will be further described in detail below with reference to the accompanying drawings of the present specification.
Fig. 1 is a schematic structural view of a washing machine according to an embodiment of the present application. As shown in fig. 1, the washing machine includes at least a cabinet 10, a dehydration tub 20, a motor driving device 30, a door 40, and a drain pump 50. Wherein the content of the first and second substances,
the dehydration tub 20 includes an outer tub and an inner tub rotatably fixed in the outer tub. The door 40 is pivotably provided on the cabinet 10 for opening or closing the inner tub.
In the dehydration process, a controller of the washing machine sends a dehydration command to the motor driving device 30, the motor driving device 30 drives the motor to drive the inner barrel to rotate, the inner barrel is provided with small holes which are distributed at intervals, when the inner barrel rotates, clothes in the inner barrel generate centrifugal force, and moisture in the clothes is thrown out of the small holes of the inner barrel under the action of the centrifugal force, so that the clothes are dehydrated.
The drain pump 50 communicates with the outer tub. The draining pump consists of mainly motor, impeller, water inlet and water outlet. The water in the outer barrel enters the drainage pump through the water inlet, the motor drives the impeller to rotate at a high speed, the impeller rotates at a high speed, water in the drainage pump obtains energy under the action of inertial centrifugal force and is discharged from the drainage outlet, after the water in the pump is discharged, a vacuum area is formed in the center of the impeller, the washing water in the outer barrel enters the impeller under the action of water pressure and atmospheric pressure, and the motor drives the impeller to rotate continuously, so that continuous drainage is realized. Wherein, the outlet is communicated with the impeller through a drain pipe, and the height of the outlet cannot be too high or too low. When the drain opening is placed too low, a siphon phenomenon occurs, and when the drain opening is placed too high, a non-drainage or overtime phenomenon occurs.
Because the residual detergent in the washing water will produce the foam, remain too much foam in the washing water, and when the water yield is less in the drain pump, the phenomenon that aqueous vapor mixes will appear in impeller department, and aqueous vapor mixture will strike high-speed rotatory pump chamber and impeller this moment, leads to great drainage noise, and because the air is difficult for discharging, will make the drain pump drainage performance reduce, and then lead to the cleanliness factor of being dehydrated to reduce. To make matters worse, if the object to be dehydrated still contains more water in the latter half of the dehydration process, the phenomenon of dehydration with water will occur, and the dehydration performance of the washing machine will be seriously affected. The dewatering phenomenon with water is that the water thrown out from the dewatered object rotates along with the rotation of the dewatering barrel, so that the water cannot be discharged smoothly.
The application discloses dehydration control method carries out dehydration control through capacity size, dehydration bucket rotational speed, by dehydration rate and the drainage time sequence of dehydration thing, and aim at promotes the dehydration performance, promotes the cleanliness factor after the dehydration of being dehydrated thing finishes.
Fig. 2 is a flowchart of a dehydration control method of a washing machine according to an embodiment of the present application. The control method is specifically performed by a controller of the washing machine, and in this embodiment, the washing machine dehydration method includes at least the following steps S210 to S240.
And step S210, responding to the dehydration instruction, and acquiring the load amount in the dehydration barrel.
The spin instruction can be sent by a user after triggering a designated spin button, or can be automatically triggered in a series of clothes cleaning processes, and schematically, after the rinsing stage is finished, the spin stage is started. After a controller of the washing machine sends out a dehydration instruction, the washing machine controls a motor driving device to drive an inner barrel to rotate so as to enter a dehydration process for dehydration. After entering the dewatering process, conventionally, the drainage pump is started to drain until reaching the set water level, and after draining to the set water level, the weighing program can be operated to obtain the load capacity in the dewatering barrel. The load amount is a loading amount of a driving apparatus of the washing machine. The larger the weight of the dehydrated material and the water contained therein, the larger the amount of the supported water. The weighing can be carried out through the output signal of the driving device, so that the load capacity in the dewatering barrel can be obtained. The output signal of the driving device can be an electromotive force signal of the motor, a motor speed feedback signal, a motor current and the like.
After the rinsing is finished, if the detergent remains in the washing water in the inner tub, the washing water may foam.
Step S220, determining a rotating speed control strategy of the washing machine according to the load; and step S230, predicting the dehydration speed according to the rotation speed control strategy.
The dewatering rate is related to the load. Specifically, when the loading amount is small, the water content is small, and the dehydration speed is high. When the load capacity is large, the water content is large, and the dehydration speed is slow. Therefore, the rotating speed control strategy corresponding to the load amount can be selected or made according to the load amount.
In one embodiment, the washing machine has a first dehydration stage and a second dehydration stage, the first dehydration stage has a lower rotation speed than the second dehydration stage; determining a rotation speed control strategy of the washing machine according to the load amount may specifically include: according to the load amount, the dehydration times of the intermittent dehydration in the first dehydration stage are determined, and the dehydration barrel is controlled to dehydrate the dehydration times at preset dehydration intervals.
Specifically, the intermittent dehydration is a stage of advanced dehydration before the rotation speed is increased. The intermittent dehydration is used for avoiding the phenomenon of dehydration with water after the rotation speed is increased. In one embodiment, the size by load amount may be divided into a small load, a medium load, and a large load. When the obtained load amount is a small load, preliminary dehydration may not be performed. The first dehydration number may be set when the acquired load amount is a medium load, and the second dehydration number may be set when the acquired load amount is a large load, wherein the second dehydration number is greater than the first dehydration number. Therefore, the dewatering time length when the load is medium or small can be reduced, and the dewatering performance when the load is large can be improved.
In one embodiment, the intermittent dehydration is periodic dehydration, and if one dehydration cycle includes an acceleration stage and a deceleration stage following the acceleration stage, so that the dehydration tub can be maintained at a low speed to complete the pre-dehydration process, in this case, it is predicted that the dehydration speed in the acceleration stage is greater than the dehydration speed in the deceleration stage, so that the dehydration tub can be controlled to drain in the acceleration stage, and the dehydration tub can be controlled to drain at first preset time intervals in the deceleration stage. In further embodiments, intermittent dewatering may also include a steady speed process. The speed stabilization process is used to stabilize the rotational speed to reduce power consumption, or to perform a process such as eccentricity detection. The intermittent dewatering may have an upper rotation speed limit and a lower rotation speed limit. The lower limit value of the rotation speed can be any value between 90rpm and 100rpm, and the upper limit value of the rotation speed can be any value between 350rpm and 400rpm, so that the rotation speed is controlled in a lower range, and the phenomenon of dehydration with water is avoided.
The rotation speed control strategy is a method of controlling the rotation speed of the dehydration tub. In one embodiment, the speed control strategy may be expressed graphically as a speed control curve. Wherein, the horizontal axis of the rotating speed control curve is time, and the vertical axis is the rotating speed of the dewatering barrel.
Further, the dewatering speed is also related to the rotation speed of the dewatering bucket. It is easy to understand that the dewatering speed in the early stage of dewatering is higher than that in the later stage of dewatering, and the dewatering speed when the inner drum is rapidly increased is higher than that when the inner drum is reduced. Wherein the dehydration speed is the water loss amount of the object to be dehydrated in the inner barrel in unit time.
And S240, determining a drainage strategy according to the dehydration speed to reduce foam in the washing water in the dehydration barrel, wherein the drainage strategy comprises a drainage interval.
The drainage strategy is determined according to the difference of the dewatering speed of loads with different weights in the dewatering process. The drainage strategy is a method of performing drainage control by intermittently turning on or off the drainage pump, and the time interval for turning on or off the drainage pump is determined according to the dehydration speed and the drainage speed. When the drain pump is intermittently turned off, the drain speed is reduced, the drain pump stores water, and the stored wash water further includes water returned from the wash water at the rising section of the drain pipe. After the water is stored for a period of time, the drainage is started again, so that the foam floating on the washing water is taken out of the washing machine, and the drainage pump is filled with water all the time, thereby facilitating smooth drainage and reducing the foam in the washing water in the dewatering barrel.
Illustratively, in this embodiment, the drainage strategy may be to control the dewatering bucket to keep the drainage pump on during the acceleration phase when the dewatering speed is high to drain smoothly, and to control the dewatering bucket to intermittently close or keep closed during the deceleration phase when the dewatering speed is low, so that the dewatering speed is matched with the drainage speed to prevent the semi-gas and semi-water phenomena in the drainage pump.
From this, in this application, at first carry out the control of stepping through the size of load, the water content difference that utilizes the load of different weights determines the rotational speed control strategy, and then utilize the dehydration speed difference in the dehydration process in the rotational speed control strategy that each load corresponds to formulate the drainage strategy that each load corresponds respectively, thereby to the meticulous control of the load of each load, avoid causing the state of semi-water gas, thereby be favorable to the interior washing water of dewatering bucket to discharge smoothly, thereby be favorable to improving the cleanliness factor by the dewatered object.
In one embodiment, after predicting the dehydration speed according to the rotation speed control strategy, the following steps can be further included: detecting a dehydration rate to modify a drainage strategy based on the detected dehydration rate. Specifically, the dewatering speed can be obtained through the flow speed in the water inlet pipe of the drainage pump, the obtained dewatering speed is compared with the predicted dewatering speed, and then the drainage strategy is corrected according to the comparison result.
In one embodiment, the washing machine has a first spin-drying stage and a second spin-drying stage, the first spin-drying stage having a lower rotation speed than the second spin-drying stage. The second dehydration stage comprises a speed increasing stage and a speed stabilizing stage; the drainage strategy comprises: controlling the dewatering barrel to drain water in the speed increasing stage with higher dewatering speed; and in the speed stabilizing stage, the dewatering barrel is controlled to drain water at a second preset time interval, so that the dewatering speed is matched with the draining speed, and the semi-water and semi-gas phenomenon in the draining pump is avoided. The first dehydration stage is prior to the second dehydration stage, and the dehydration speed of the steady-speed stage can be predicted to be lower than that of the deceleration stage in the first dehydration stage, so that the second preset time interval can be set to be larger than the first preset time interval.
In one embodiment, the washing machine includes a drain pump for draining wash water thrown out in the spin-drying tub; after determining the drainage strategy according to the dehydration speed, the dehydration control method of the washing machine further includes: detecting a water level in the drain pump; and when the water level is lower than the set water level threshold value, closing the drainage pump to store water. Therefore, the water vapor of the drainage pump can be further ensured to be full, and the semi-water and semi-gas phenomenon is prevented.
Fig. 3 is a flowchart of a dehydration control method according to still another embodiment of the present application. As shown in fig. 3, in this embodiment, the dehydration control method of the washing machine includes the steps of:
step S301, in response to a dehydration instruction, draining water to a set water level;
step S302, under the condition that the water level of the dehydration barrel is reduced to a preset water level, controlling the dehydration barrel to rotate and shake away so as to uniformly distribute loads;
step S303, acquiring the load and the eccentricity in the dehydration barrel;
step S304, judging whether the eccentricity meets the requirement, if so, executing step S305, and if not, executing step S302;
step S305, judging whether the load is larger than a first threshold value; if not, go to step S307; if yes, go to step S306;
step S306, judging whether the load is larger than a second threshold value, wherein the second threshold value is larger than the first threshold value, and if not, executing step S308; if yes, go to step S309;
step S308, carrying out a second rotating speed control strategy by the medium load;
step S309, with a large load, a third rotational speed control strategy is executed.
Specifically, in response to a dewatering instruction, a drainage flow is started, and firstly, a drainage pump is started to drain excessive water in the dewatering barrel until a preset water level is reached. And then, under the condition that the water level of the dewatering barrel reaches the preset water level, starting the motor to drive the dewatering barrel to rotate so as to shake the load at the rotating speed of 0-80 rpm. Then, the eccentricity detection can be carried out when the rotating speed reaches 90rpm, and the weighing is carried out under the condition that the eccentricity is less than or equal to the preset eccentricity upper limit value, so as to obtain the load capacity in the dewatering barrel, and further carry out grading control according to the load capacity. The first threshold and the second threshold are used for grading the load amount, and specific numerical values of the first threshold and the second threshold can be specifically determined according to implementation conditions. Taking a washing machine with a capacity of 10kg as an example, the first threshold value may be 3kg and the second threshold value may be 6kg, that is, the small load may be a load of 3kg or less, the medium load may be a load of 3-6kg, and the large load may be a load of 6-10 kg. And then executing a rotating speed control strategy corresponding to the load quantity.
It should be noted that, during the eccentricity detection in step S304, if the eccentricity meets the requirement, the eccentricity detection may not be performed subsequently, so as to shorten the dewatering time. If the eccentricity does not meet the requirement, uniform distribution can be carried out, if the number of uniform distribution exceeds the preset number, overrun alarm can be carried out, or the rotating speed is changed to continue uniform distribution treatment, and the position is not limited.
Fig. 4 is a timing diagram of a first slew rate control strategy when the load is a small load according to an embodiment of the present application. As shown in fig. 4, when the load is a small load, the speed control strategy is divided into t1 stage and t2 stage control. the rotation speed in the t1 stage is lower than that in the t2 stage. And performing operations of pre-draining to a preset water level, uniformly loading, weighing the load and the like at the stage of t 1. Thereafter, the rotation speed is raised to spin the laundry at stage t2, whereby the dehydration time for a small load having a small water content can be shortened. It is noted that, in correspondence with the first speed control strategy illustrated by the curve in fig. 4, in this embodiment, the first speed control strategy corresponds to the following first draining strategy: at stage t1, turning on a drainage pump for uninterrupted drainage; at stage t2, water is intermittently drained at first drainage time intervals. The reason is as follows: at the t1 stage, the initial stage of dehydration moisture content is high, carries out the drainage in advance to predetermineeing the water level to and weigh, the drainage speed is fast when rotating during even load, at the t2 stage, the water content reduces, carry out intermittent type drainage to the circulation of carrying out "retaining-drainage", thereby make the drain pump normal water keep being full of, reduce the probability that the half gas condition of semiwater appears, and then reduce the phenomenon that takes water of dehydration appears after the rotational speed improves, thereby be favorable to promoting the cleanliness factor of being dehydrated and promote dehydration efficiency.
FIG. 5 is a timing diagram illustrating a third speed control strategy when the load is a heavy load according to an embodiment of the present application. As shown in fig. 5, when the load is a large load, the third speed control strategy is staged through the stages of t1, t2, and t 3. In order to reduce the complexity of the control, the stage t1 in fig. 5 may be consistent with the speed control strategy in the stage t1 in fig. 4, and the stage t3 in fig. 5 may also be consistent with the speed control strategy in the stage t2 in fig. 4. In another embodiment, the control can be segmented by the rotation speed.
As can be seen from a comparison of fig. 4 and 5, in the case where the load is a large load, intermittent dehydration at the t2 stage shown in fig. 5 is added. Intermittent dehydration is used for dehydration in advance, so that the phenomenon of dehydration with water in a subsequent high-speed stage due to a large load with large water content is avoided. In this example, the number of times of batch dehydration was 3. In case of medium load, the number of intermittent dehydration may be set to 1-2 times. The number of intermittent dewatering can also be determined according to actual conditions. It should be noted that the third draining strategy for the third speed control strategy may be as follows: in stage t1 in fig. 5, the drainage pump is turned on for uninterrupted drainage; and a t2 stage and a t3 stage, intermittent drainage is performed. Thereby keeping the drain pump full of water and reducing the probability of semi-aqueous half-gas conditions.
Therefore, the dewatering time is shortened when the load capacity is small by controlling the loads with different weights in a grading manner; when the load is large, the intermittent dewatering is utilized to dewater in advance, and a corresponding drainage strategy is set according to the difference of the drainage speed, so that the drainage pump keeps full of water in the dewatering process, the drainage performance is improved, and the probability of dewatering with water in the subsequent high-speed stage is reduced.
Fig. 5a is an enlarged view of stage t2 in fig. 5. In this embodiment, a better drainage effect is achieved by finely controlling the drainage. Specifically, fig. 5a shows a rotation speed control method with three intermittent dehydrations, wherein the rotation speed of each intermittent dehydration comprises four sections, namely a first section t2-1 with stable rotation speed, a second section t2-2 with increased rotation speed, a third section t2-3 with decreased rotation speed and a fourth section t2-4 with further decreased rotation speed. In this embodiment, the drain pump is kept on for periods t2-1 and t2-2, the t2-3 drain pump is off, and the t2-4 drain pump is intermittently on. Specifically, t2-1 is an eccentricity detection stage, and the drainage pump is always started; t2-2 is a speed-up stage from 90rpm to 350rpm or 400rpm, the water discharge amount of the load in unit time is maximum in the stage, and the drainage pump is always opened; t2-3 is an initial speed reduction stage, in which the drainage quantity reduction drainage pump is firstly closed for a period of time, when the drainage pump stops working, the washing water at the ascending stage on the drainage pipe flows back under the action of gravity, so that the drainage pump is full of water, a semi-water and semi-gas state cannot be caused, and dewatering with water is avoided; t2-4, and performing speed reduction stage, wherein the drainage pump is alternately started according to a certain time sequence, so that drainage is realized, and water carrying dehydration caused by water vapor mixing state is avoided. It should be noted that the critical rotation speed for distinguishing the t2-3 period from the t2-4 period is determined according to the drainage speed and the dehydration speed, and preferably, the drainage speed is equal to the dehydration speed at the rotation speeds of the t2-3 period and the t2-4 period.
Fig. 5b is an enlarged view of the stage t3 in fig. 5. After the stage t3, the spin-drying tub is stepped up until the set target speed 1200rpm is reached, as shown in fig. 5 b. Each rise can be divided into a speed-up stage t3-1, an initial stage t3-2 of rotating speed maintenance and a stable stage t3-3 of rotating speed maintenance. Wherein, the dewatering speed of the load is fastest in the stage t3-1, and the drainage pump is always started. At the stage t3-2, the water discharge amount is reduced, the drainage pump is closed, when the drainage pump stops working, the washing water at the ascending section on the drainage pipe flows back under the action of gravity, the drainage pump is full of water, a semi-water and semi-gas state cannot be caused, and dehydration with water is avoided; and in the stage t3-3, the drainage pump is alternately started according to a certain time sequence, so that drainage is realized, and water carrying dehydration caused by a water-vapor mixed state is avoided. This can improve the dewatering performance.
In one embodiment, a dewatering speed detection device can be further arranged, and a drainage strategy is corrected according to the detected dewatering speed, so that the predicted dewatering speed under special conditions such as abnormal water content caused by special clothes types is corrected, the dewatering speed under the special conditions is matched with the drainage speed, the semi-water and semi-gas state in the drainage pump is avoided, the dewatering phenomenon with water is avoided, and the dewatering performance is guaranteed.
According to another aspect of the present application, there is also provided a washing machine including at least: the device comprises a dewatering barrel, a load detection device, a drainage device and a control device. The device comprises a dewatering barrel, a load detection device and a control device, wherein the load detection device is electrically connected with the dewatering barrel and used for detecting the load in the dewatering barrel; the drainage device comprises a drainage pump, the drainage pump is used for draining the washing water thrown out from the dewatering barrel out of the washing machine; the control device is electrically connected with the drainage pump, the load detection device and the dewatering barrel and used for determining a rotating speed control strategy according to the load; predicting the dehydration speed according to a rotating speed control strategy; and determining a drainage strategy according to the dehydration speed, and controlling the drainage pump to drain water according to the drainage strategy so as to reduce foam in the washing water in the dehydration barrel.
Fig. 6 is a schematic structural diagram of a dehydration control device of a washing machine according to an embodiment of the present application. As shown in fig. 6, the apparatus includes at least:
an obtaining unit 610 for obtaining a load amount in the dehydration tub in response to the dehydration instruction;
the determining unit 620 is configured to determine a rotation speed control strategy according to a load amount;
a prediction unit 630 for predicting a dehydration speed according to a rotation speed control strategy;
a drainage strategy determination unit 640 for determining a drainage strategy to reduce bubbles in the wash water in the dehydration tub according to the dehydration speed, wherein the drainage strategy includes a drainage interval.
According to another aspect of the present application, there is also provided an electronic device including a processor and a memory, the memory storing a computer readable program, the computer readable program when executed by the processor causes the device to perform the washing machine dehydration control method as described above.
The inventive concepts of the washing machine, the washing machine dehydration control device and the electronic device are consistent with the washing machine dehydration control method, and are not repeated herein.
While the present application has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present application may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. A dehydration control method of a washing machine, characterized by comprising:
responding to a dehydration instruction, and acquiring the load capacity in the dehydration barrel;
determining a rotating speed control strategy of the washing machine according to the load;
predicting the dehydration speed according to the rotating speed control strategy;
determining a drainage strategy to reduce foam in the wash water in the dehydration tub according to the dehydration speed, wherein the drainage strategy includes a drainage interval.
2. The method according to claim 1, characterized in that the washing machine has a first dehydration phase and a second dehydration phase, the first dehydration phase having a lower rotation speed than the second dehydration phase; the determining the rotation speed control strategy of the washing machine according to the load amount comprises the following steps:
determining the dewatering times of the intermittent dewatering in the first dewatering stage according to the load;
and controlling the dehydration barrel to dehydrate at preset dehydration intervals.
3. The method of claim 2, wherein the intermittent dehydration is a periodic dehydration; predicting the dehydration speed according to the rotation speed control strategy comprises the following steps:
if one dehydration cycle comprises an acceleration stage and a deceleration stage after the acceleration stage, predicting that the dehydration speed of the acceleration stage is greater than that of the deceleration stage;
the determining of the drainage strategy according to the dehydration speed comprises the following steps:
controlling the dewatering tub to drain in the acceleration stage, and controlling the dewatering tub to drain at a first preset time interval in the deceleration stage.
4. The method according to claim 2, wherein the second dehydration stage comprises a speed-up stage and a speed-stabilizing stage following the speed-up stage, the speed-up stage having a higher dehydration speed than the speed-stabilizing stage; determining a drainage strategy according to the dehydration speed, comprising:
in the speed-up stage, controlling the dewatering barrel to drain water;
and in the speed stabilizing stage, controlling the dewatering barrel to drain at a second preset time interval, wherein the second preset time interval is greater than the first preset time interval.
5. The method of claim 1, wherein the washing machine includes a drain pump for draining the wash water thrown out in the spin-drying tub; after determining a drainage strategy according to the dewatering speed, the method further comprises:
detecting a water level in the drain pump;
and when the water level is lower than a set water level threshold value, closing the drainage pump to store water.
6. The method of claim 1, wherein after the responding to a dehydration instruction, the method further comprises:
controlling the dewatering barrel to drain water;
controlling the dehydration barrel to rotate and shake under the condition that the water level of the dehydration barrel is reduced to a preset water level;
acquiring the eccentric amount in the dewatering barrel;
and acquiring the load capacity in the dewatering barrel under the condition that the eccentricity is less than or equal to a preset eccentricity upper limit value.
7. The method of claim 6, wherein after predicting a dehydration rate according to the rotational speed control strategy, the method further comprises:
detecting the dehydration speed;
correcting the drainage strategy according to the detected dehydration speed.
8. A washing machine, characterized in that the washing machine comprises:
a dewatering barrel;
the load detection device is electrically connected with the dehydration barrel and is used for detecting the load in the dehydration barrel;
a drain device including a drain pump for discharging the washing water thrown out of the dehydration tub to the outside of the washing machine;
the control device is electrically connected with the drainage pump, the load detection device and the dewatering barrel and used for determining a rotating speed control strategy according to the load; predicting the dehydration speed according to the rotating speed control strategy; and determining a drainage strategy according to the dehydration speed, and controlling the drainage pump to drain according to the drainage strategy so as to reduce foam in the washing water in the dehydration barrel.
9. A dehydration control apparatus for a washing machine, characterized in that the apparatus comprises:
the acquiring unit is used for responding to the dehydration instruction and acquiring the load in the dehydration barrel;
the determining unit is used for determining a rotating speed control strategy of the washing machine according to the load;
the prediction unit is used for predicting the dehydration speed according to the rotating speed control strategy;
a drainage strategy formulation unit for determining a drainage strategy to reduce bubbles in the wash water in the dehydration tub according to the dehydration speed, wherein the drainage strategy includes a drainage interval.
10. An electronic device, characterized in that the device comprises:
a processor;
a memory in which a computer readable program is stored, which, when executed by the processor, causes the apparatus to perform the dehydration control method of the washing machine according to any one of claims 1 to 7.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3578399A (en) * | 1998-06-30 | 2000-01-13 | Sanyo Electric Co., Ltd. | Washing machine |
| CN1517475A (en) * | 2003-01-15 | 2004-08-04 | Lg������ʽ���� | Method for controlling dewatering speed of washing machine |
| KR100656168B1 (en) * | 2005-12-28 | 2006-12-13 | 삼성전자주식회사 | Draining control method for washing machine |
| CN105088646A (en) * | 2015-05-29 | 2015-11-25 | 无锡小天鹅股份有限公司 | Control method and controlling device of front-loader washing machine and front-loader washing machine |
| JP2016146985A (en) * | 2015-02-13 | 2016-08-18 | パナソニックＩｐマネジメント株式会社 | Washing machine |
| CN105887414A (en) * | 2016-05-30 | 2016-08-24 | 无锡小天鹅股份有限公司 | Washing machine and dewatering control method thereof |
| CN106811916A (en) * | 2015-12-02 | 2017-06-09 | 青岛海尔滚筒洗衣机有限公司 | A kind of water discharge method of washing machine |
| CN109487487A (en) * | 2017-09-11 | 2019-03-19 | 无锡小天鹅股份有限公司 | Dewatering control method for washing machine, system, computer storage medium and washing machine |
| CN110273254A (en) * | 2018-03-13 | 2019-09-24 | 青岛海尔洗衣机有限公司 | A kind of dewatering control method for washing machine based on image recognition |
| CN112760913A (en) * | 2020-12-21 | 2021-05-07 | 珠海格力电器股份有限公司 | Control method and device for drainage pump, washing machine, storage medium and processor |
-
2021
- 2021-09-09 CN CN202111056231.0A patent/CN113668184B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3578399A (en) * | 1998-06-30 | 2000-01-13 | Sanyo Electric Co., Ltd. | Washing machine |
| JP2000014964A (en) * | 1998-06-30 | 2000-01-18 | Sanyo Electric Co Ltd | Fully automated washing machine |
| CN1517475A (en) * | 2003-01-15 | 2004-08-04 | Lg������ʽ���� | Method for controlling dewatering speed of washing machine |
| KR100656168B1 (en) * | 2005-12-28 | 2006-12-13 | 삼성전자주식회사 | Draining control method for washing machine |
| JP2016146985A (en) * | 2015-02-13 | 2016-08-18 | パナソニックＩｐマネジメント株式会社 | Washing machine |
| CN105088646A (en) * | 2015-05-29 | 2015-11-25 | 无锡小天鹅股份有限公司 | Control method and controlling device of front-loader washing machine and front-loader washing machine |
| CN106811916A (en) * | 2015-12-02 | 2017-06-09 | 青岛海尔滚筒洗衣机有限公司 | A kind of water discharge method of washing machine |
| CN105887414A (en) * | 2016-05-30 | 2016-08-24 | 无锡小天鹅股份有限公司 | Washing machine and dewatering control method thereof |
| CN109487487A (en) * | 2017-09-11 | 2019-03-19 | 无锡小天鹅股份有限公司 | Dewatering control method for washing machine, system, computer storage medium and washing machine |
| CN110273254A (en) * | 2018-03-13 | 2019-09-24 | 青岛海尔洗衣机有限公司 | A kind of dewatering control method for washing machine based on image recognition |
| CN112760913A (en) * | 2020-12-21 | 2021-05-07 | 珠海格力电器股份有限公司 | Control method and device for drainage pump, washing machine, storage medium and processor |
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