CN113668184B - Washing machine, dehydration control method and device thereof and electronic equipment - Google Patents
Washing machine, dehydration control method and device thereof and electronic equipment Download PDFInfo
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- CN113668184B CN113668184B CN202111056231.0A CN202111056231A CN113668184B CN 113668184 B CN113668184 B CN 113668184B CN 202111056231 A CN202111056231 A CN 202111056231A CN 113668184 B CN113668184 B CN 113668184B
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- 230000018044 dehydration Effects 0.000 title claims abstract description 193
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 193
- 238000005406 washing Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 137
- 238000011217 control strategy Methods 0.000 claims abstract description 47
- 239000006260 foam Substances 0.000 claims abstract description 18
- 208000005156 Dehydration Diseases 0.000 claims description 186
- 238000001514 detection method Methods 0.000 claims description 12
- 230000003247 decreasing effect Effects 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000003749 cleanliness Effects 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 17
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 239000003599 detergent Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
-
- 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
-
- 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, a device and electronic equipment thereof, wherein the method comprises the following steps: responding to a dehydration instruction, and acquiring the load capacity in a dehydration barrel; determining a rotating speed control strategy of the washing machine according to the load quantity; predicting the dehydration speed according to a rotational speed control strategy; a drainage strategy is determined based on the dewatering rate, the drainage strategy comprising a drainage interval. The dehydration control method of the washing machine can reduce foam in washing water in the dehydration barrel and improve the cleanliness of the dehydrated object.
Description
Technical Field
The present application relates to the field of washing machines, and in particular, to a washing machine, a dehydration control method and apparatus thereof, and an electronic device.
Background
The working process of the current 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 vital links in the working flow of the washing machine. However, if more detergent is contained in the washing water in the dewatering barrel in the dewatering process, more foam is generated, the drainage foam and water will strike the impeller of the drainage pump, and half-water half-gas phenomenon is generated, so that the washing water in the dewatering barrel and the foam thereof cannot be smoothly discharged, and the cleanliness of the dewatered object is reduced.
The above information disclosed in the background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not form the 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 an object to be dehydrated.
Another object of the present application is to provide a washing machine having improved cleanliness of a dehydrated object.
In order to solve the technical problems, the application adopts the following technical scheme:
according to one aspect of the present application, there is provided a method of controlling dehydration of a washing machine, the method comprising: responding to a dehydration instruction, and acquiring the load capacity in a dehydration barrel; determining a rotating speed control strategy of the washing machine according to the load quantity; predicting the dehydration speed according to a rotational speed control strategy; a drainage strategy is determined according to the dehydration speed to reduce foam in the wash water in the dehydration tub, wherein the drainage strategy includes a drainage interval.
In one embodiment, the washing machine has a first dewatering stage and a second dewatering stage, the first dewatering stage having a lower rotational speed than the second dewatering stage; determining a rotating speed control strategy of the washing machine according to the load quantity, wherein the rotating speed control strategy comprises the following steps: determining the intermittent dehydration times of the first dehydration stage according to the load; the dehydration barrel is controlled to dehydrate for times at preset dehydration intervals.
In one embodiment, the intermittent dewatering is periodic dewatering; predicting a dehydration rate according to a rotational speed control strategy, comprising: if one dehydration period comprises a speed increasing stage and a speed decreasing stage after the speed increasing stage, predicting that the dehydration speed of the speed increasing stage is greater than the dehydration speed of the speed decreasing stage; determining a drainage strategy based on the dehydration volume variation, comprising: the dewatering tub is controlled to drain in a speed increasing stage, and the dewatering tub is controlled to drain at a first preset time interval in a speed decreasing stage.
In one embodiment, the second dewatering stage comprises a speed increasing stage and a speed stabilizing stage after the speed increasing stage, wherein the dewatering speed of the speed increasing stage is higher than that of the speed stabilizing stage; determining a drainage strategy based on the dewatering rate, comprising: in the speed increasing 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 larger than the first preset time interval.
In one embodiment, the washing machine includes a drain pump for draining the washing water thrown out of the dewatering tub; after determining the drainage strategy based on 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, closing the drainage pump to store water.
In one embodiment, after responding to the dehydration instructions, 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 dewatering barrel; and under the condition that the eccentric amount is smaller than or equal to the preset eccentric upper limit value, acquiring the load capacity in the dewatering barrel.
In one embodiment, after predicting the dehydration speed according to the rotational speed control strategy, the method further comprises: detecting the dehydration speed; the drainage strategy is modified based on the detected dewatering speed.
According to another aspect of the present application, there is provided a washing machine including:
a dehydration barrel;
the load amount detection device is electrically connected with the dewatering barrel and is used for detecting the load amount in the dewatering barrel;
the drainage device comprises a drainage pump, and the drainage pump is used for draining the washing water thrown out of the dewatering barrel to the outside of the washing machine;
the control device is electrically connected with the drainage pump, the load capacity detection device and the dewatering barrel and is used for determining a rotating speed control strategy according to the load capacity; predicting the dehydration speed according to a rotational speed control strategy; and determining a drainage strategy according to the dewatering speed, and controlling the drainage pump to drain according to the drainage strategy so as to reduce foam in the washing water in the dewatering barrel.
According to still another aspect of the present application, there is provided a dehydration control apparatus for a washing machine, the apparatus comprising:
an acquisition unit for acquiring the load in the dewatering barrel in response to the dewatering instruction;
the determining unit is used for determining a rotating speed control strategy of the washing machine according to the load quantity;
the prediction unit is used for predicting the dehydration speed according to the rotation speed control strategy;
and the drainage strategy making unit is used for determining a drainage strategy according to the dewatering speed so as to reduce foam in the washing water in the dewatering barrel, wherein the drainage strategy comprises a drainage interval.
According to still another aspect of the present application, there is also provided an electronic apparatus, including:
a processor;
a memory having stored therein a computer readable program which, when executed by the processor, causes the apparatus to perform a washing machine dehydration 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:
according to the application, the step control is firstly carried out through the magnitude of the load quantity, the rotational speed control strategy is determined by utilizing the water content difference of the loads with different weights, and then the drainage strategy corresponding to each load quantity is formulated by utilizing the dehydration speed difference in the dehydration process in the rotational speed control strategy corresponding to each load quantity, so that the fine control of the load of each load quantity is realized, the semi-water and semi-gas state is avoided, the smooth discharge of the washing water in the dehydration barrel is facilitated, and the cleanliness of the dehydrated object is improved.
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 as claimed.
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 view of a structure 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 rotational speed control strategy when the load is a small load in accordance with an embodiment of the present application.
Fig. 5 is a timing diagram of a third rotational 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 stage t3 in fig. 5.
Fig. 6 is a schematic structural view of a dehydration control apparatus for 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, 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.
Thus, reference throughout this specification to one feature will be used in order to describe one embodiment of the application, not to imply that each embodiment of the application must be in the proper motion. Furthermore, it should be noted that the present specification describes a number of features. Although certain features may be combined together to illustrate a possible system design, such features may be used in other combinations not explicitly described. Thus, unless otherwise indicated, the illustrated combinations are not intended to be limiting.
In the embodiment shown in the drawings, indications of orientation (such as up, down, left, right, front and rear) are used to explain the structure and movement of the various elements of the application are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the position 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. However, the exemplary embodiments may be embodied in many 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 the 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 a repetitive description thereof will be omitted.
Preferred embodiments of the present application will be further elaborated below with reference to the drawings of the present specification.
Fig. 1 is a schematic view of a structure 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 dehydrating tub 20, a motor driving device 30, a door 40, and a drain pump 50. Wherein, the liquid crystal display device comprises a liquid crystal display device,
the dehydrating tub 20 includes an outer tub and an inner tub rotatably fixed inside the outer tub. The door 40 is pivotally provided to the cabinet 10 for opening or closing the inner tub.
In the dehydration process, a controller of the washing machine sends a dehydration instruction to the motor driving device 30, the motor driving device 30 drives the motor to drive the inner barrel to rotate, holes which are distributed at intervals are formed in the inner barrel, when the inner barrel rotates, the clothes in the inner barrel generate centrifugal force, and the moisture in the clothes is thrown out of the 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 drainage pump mainly comprises a motor, an impeller, a water inlet and a drainage 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 water in the drainage pump obtains energy under the action of inertial centrifugal force by virtue of the impeller rotating at a high speed, the water in the drainage pump is discharged from the water outlet, after the water in the pump is discharged, the central part of the impeller forms a vacuum area, 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 continuously rotate, so that continuous drainage is realized. Wherein, the water outlet is communicated with the impeller through a water outlet pipe, and the height of the water outlet cannot be too high or too low. When the water outlet is placed too low, a siphon phenomenon occurs, and when the water outlet is placed too high, a phenomenon of no water discharge or overtime of water discharge occurs.
Because the residual detergent in the washing water will generate foam, when excessive foam remains in the washing water and the water quantity in the drainage pump is small, the water-air mixing phenomenon will occur at the impeller, at this time, the water-air mixture will strike the pump cavity and the impeller rotating at high speed, resulting in larger drainage noise, and because the air is not easy to be discharged, the drainage performance of the drainage pump will be reduced, and the cleanliness of the dehydrated object is reduced. Worse, in the latter half of the dehydration process, if the dehydrated matter still contains more water, the phenomenon of dehydration with water will occur, and the dehydration performance of the washing machine will be seriously affected. The dehydration phenomenon with water is a phenomenon that water thrown out from a dehydrated object rotates along with the rotation of a dehydration barrel, so that the water cannot be smoothly discharged.
The dehydration control method of the application carries out dehydration control through the load capacity, the rotation speed of the dehydration barrel, the dehydration speed of the dehydrated object and the drainage time sequence, and aims to improve the dehydration performance and the cleanliness of the dehydrated object after dehydration.
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 dehydrating method includes at least the following steps S210 to S240.
Step S210, responding to the dehydration instruction, and acquiring the load capacity in the dehydration barrel.
The dehydration instruction may be issued after the user activates a designated dehydration button, or may be automatically triggered in a series of laundry cleaning processes, illustratively, after the rinse phase is completed, the dehydration phase will be entered. After the controller of the washing machine sends out a dehydration instruction, the washing machine controls the motor driving device to drive the inner barrel to rotate so as to enter a dehydration process for dehydration. After entering the dehydration process, conventionally, a drainage pump is started to drain until reaching a set water level, and after the drainage pump is drained to the set water level, a weighing program can be operated to obtain the load capacity in the dehydration barrel. The load amount is a load amount of a driving device of the washing machine. The greater the weight of the dehydrated object and its contained moisture, the greater the load. The load in the dewatering barrel can be obtained by weighing the output signals of the driving device. 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.
If detergent remains in the washing water in the inner tub after the rinsing is completed, the washing water may foam.
Step S220, determining a rotating speed control strategy of the washing machine according to the load quantity; and step S230, predicting the dehydration speed according to the rotation speed control strategy.
The dehydration rate is related to the amount of load. Specifically, when the load amount is small, the water content is small, and the dehydration speed is high. When the load is large, the water content is large, and the dehydration speed is slow. Therefore, a rotation speed control strategy corresponding to the load amount can be selected or formulated according to the load amount.
In one embodiment, the washing machine has a first dewatering stage and a second dewatering stage, the first dewatering stage having a lower rotational speed than the second dewatering stage; the determining a rotational speed control strategy of the washing machine according to the load amount may include: and determining the dehydration times of intermittent dehydration in the first dehydration stage according to the load amount, and controlling the dehydration barrel to dehydrate for the dehydration times at preset dehydration intervals.
Specifically, intermittent dehydration is an advanced dehydration stage before the rotational speed is raised. The intermittent dehydration is used for avoiding the phenomenon of dehydration with water after the rotation speed is increased. In one embodiment, the load may be divided into a small load, a medium load, and a large load according to the magnitude of the load amount. When the obtained load amount is a small load, the pre-dehydration may not be performed. When the obtained load is a medium load, a first dehydration number may be set, and when the obtained load is a large load, a second dehydration number may be set, wherein the second dehydration number is greater than the first dehydration number. Therefore, on one hand, the dehydration time length when the load is a medium load or a small load can be reduced, and on the other hand, the dehydration performance when the load is a large load can be improved.
In one embodiment, the intermittent dehydration is periodic dehydration, if one dehydration cycle includes a ramp-up phase and a ramp-down phase after the ramp-up phase, thereby enabling the dehydration tub to maintain the completion of the pre-dehydration process at a low speed, in which case, the dehydration speed of the ramp-up phase may be predicted to be greater than that of the ramp-down phase, thereby controlling the dehydration tub to drain in the ramp-up phase, and controlling the dehydration tub to drain at a first preset time interval in the ramp-down phase. In further embodiments, batch dewatering may also involve a steady-rate process. The steady speed process is used to stabilize the rotational speed to reduce power consumption, or to perform a program such as eccentric detection. The intermittent dehydration may be provided with an upper rotational speed limit and a lower rotational speed limit. The lower limit value of the rotating speed can be any value between 90 and 100rpm, and the upper limit value of the rotating speed can be any value between 350 and 400rpm, so that the rotating speed is controlled in a lower range, and the phenomenon of dehydration with water is avoided.
The rotational speed control strategy is a method for controlling the rotational speed of the dewatering tub. In one embodiment, the speed control strategy may be expressed in terms of a speed control curve. Wherein the horizontal axis of the rotation speed control curve is time, and the vertical axis is the rotation speed of the dewatering barrel.
Further, the dehydration speed is also related to the rotation speed of the dehydration tub. It is easily understood that the dehydration speed in the initial stage of dehydration will be greater than the dehydration speed in the later stage of dehydration, and the dehydration speed at the time of rapid rise of the inner tub will be higher than the dehydration speed at the time of deceleration of the inner tub. Wherein, the dehydration speed is the water loss of the to-be-dehydrated matters in the inner barrel in unit time.
And step 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 based on the difference in dewatering rates of the different weight loads during the dewatering process. The drain strategy is a method of drain control by intermittently turning on or off the drain pump, and a time interval for turning on or off the drain pump is determined according to a dehydration speed and a drain speed. When the drain pump is intermittently closed, the drain speed is reduced, the drain pump stores water, and the stored washing water also comprises water of the washing water backflow of the rising section of the drain pipe. After a period of water storage, the water drainage is started again, firstly, foam floating on the washing water is brought out of the washing machine, and secondly, the drainage pump is always filled with water, so that smooth water drainage is facilitated, and foam in the washing water in the dewatering barrel is reduced.
Illustratively, in this embodiment, the drainage strategy may be to control the dewatering tub to keep the drainage pump open during the speed-up phase where the dewatering speed is high to smoothly drain water, and to control the dewatering tub to intermittently close or remain closed during the speed-down phase where the dewatering speed is low, so that the dewatering speed matches the drainage speed to prevent the phenomenon of semi-gas and semi-water in the drainage pump.
According to the application, the step control is firstly carried out according to the magnitude of the load quantity, the rotational speed control strategy is determined by utilizing the water content difference of the loads with different weights, and then the drainage strategy corresponding to each load quantity is formulated by utilizing the dehydration speed difference in the dehydration process in the rotational speed control strategy corresponding to each load quantity, so that the fine control of the load of each load quantity is realized, the semi-water and semi-air state is avoided, the smooth discharge of the washing water in the dehydration barrel is facilitated, and the cleanliness of the dehydrated object is improved.
In one embodiment, after predicting the dehydration speed according to the rotational speed control strategy, the method may further include the steps of: a dewatering speed is detected to modify the drainage strategy based on the detected dewatering speed. Specifically, the dewatering speed can be obtained through the flow rate in the water inlet pipe of the drainage pump, the obtained dewatering speed is compared with the predicted dewatering speed, and the drainage strategy is further modified according to the comparison result.
In one embodiment, the washing machine has a first dewatering stage and a second dewatering stage, the first dewatering stage having a lower rotational speed than the second dewatering stage. The second dehydration stage comprises a speed increasing stage and a speed stabilizing stage; the drainage strategy includes: in the rising stage with higher dehydration speed, controlling the dehydration barrel to drain water; in the speed stabilization stage, the dewatering barrel is controlled to drain at a second preset time interval, so that the dewatering speed is matched with the drainage speed, and the phenomenon of semi-water and semi-gas in the drainage pump is avoided. Wherein the first dehydration stage is preceded by the second dehydration stage, the dehydration speed of the steady stage can be predicted to be lower than that of the deceleration stage in the first dehydration stage, and therefore, the second preset time interval can be set to be greater than the first preset time interval.
In one embodiment, the washing machine includes a drain pump for draining the washing water thrown out of the dewatering 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, closing the drainage pump to store water. Therefore, the water vapor filling of the drainage pump can be further guaranteed, and the phenomenon of semi-water and semi-gas 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 a washing machine includes the steps of:
step S301, responding to a dehydration instruction, and draining water to a set water level;
step S302, controlling the rotation of the dewatering barrel to shake off under the condition that the water level of the dewatering barrel is reduced to a preset water level so as to uniformly distribute the load;
step S303, obtaining the load capacity and the eccentric capacity in the dewatering barrel;
step S304, judging whether the eccentric amount meets the requirement, if yes, executing step S305, and if not, executing step S302;
step S305, judging whether the load is greater than a first threshold; if not, go to step S307; if yes, go to step S306;
step S306, judging whether the load is larger than a second threshold, wherein the second threshold is larger than the first threshold, and if not, executing step S308; if yes, go to step S309;
step S308, medium load, executing a second rotating speed control strategy;
step S309, the third rotational speed control strategy is executed for heavy load.
Specifically, in response to a dehydration instruction, a drainage flow is entered, and firstly, a drainage pump is started to drain redundant water in a dehydration barrel until a preset water level is reached. And then, under the condition that the water level of the dewatering barrel reaches a preset water level, starting the motor to drive the dewatering barrel to rotate so as to shake off the load at the rotating speed of 0-80 rpm. Then, the eccentricity detection can be performed when the rotating speed reaches 90rpm, and the weighing is performed under the condition that the eccentricity is smaller than or equal to the preset eccentric upper limit value, so that the load capacity in the dewatering barrel is obtained, and the stepping control is further performed according to the load capacity. The first threshold and the second threshold are used for grading the load amount, and specific values of the first threshold and the second threshold can be specifically determined according to the implementation situation. Taking a 10kg capacity washing machine as an example, the first threshold may be 3kg, the second threshold may be 6kg, that is, the small load may be a load of less than 3kg, 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 capacity.
It should be noted that, when the eccentricity is detected in step S304, the eccentricity detection may not be performed any more in the following step if the eccentricity meets the requirement, so as to shorten the dehydration time. If the eccentricity is not in accordance with the requirement, uniform distribution can be performed, if the number of times of uniform distribution exceeds the preset number of times, overrun alarm can be performed, or the rotation speed is changed to continue uniform distribution treatment, and the method is not limited.
Fig. 4 is a timing diagram of a first rotational speed control strategy when the load is a small load in accordance with an embodiment of the present application. As shown in fig. 4, when the load is a small load, the rotational speed control strategy is controlled in t1 and t2 phases. the rotational speed in the t1 stage is lower than the rotational speed in the t2 stage. And (3) performing operations such as pre-draining to a preset water level, uniformly loading, weighing the load and the like in the stage t 1. And then, the rotating speed is increased to spin-dry the clothes in the stage t2, so that the dehydration time of a small load with low water content can be shortened. It should be noted that, in this embodiment, the first rotational speed control strategy corresponds to the first drainage strategy shown in the graph of fig. 4 as follows: at the stage t1, opening a drainage pump to drain water uninterruptedly; at stage t2, intermittent drainage is performed at first drainage intervals. The reason is as follows: in the stage t1, the water content is high in the dewatering initial stage, the pre-drainage is performed to a preset water level, the water drainage speed is high when the machine rotates during weighing and even loading, in the stage t2, the water content is reduced, intermittent drainage is performed to perform 'water storage-drainage' circulation, so that the water in the drainage pump is kept full, the probability of semi-water and semi-gas conditions is reduced, the phenomenon of dewatering after the rotation speed is increased is reduced, and the cleanliness of a dewatered object is improved, and the dewatering efficiency is improved.
Fig. 5 is a timing diagram of a third rotational 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 rotational speed control strategy performs the t1 phase, the t2 phase, and the t3 phase in stages. In order to reduce the complexity of the control, the rotational speed control strategy at the t1 stage in fig. 5 may be identical to that at the t1 stage in fig. 4, and the rotational speed control strategy at the t3 stage in fig. 5 may also be identical to that at the t2 stage in fig. 4. In further embodiments, the segment control may also be performed by rotational speed.
As can be seen from comparing fig. 4 and 5, in the case where the load is a large load, intermittent dehydration at the t2 stage as shown in fig. 5 is added. Intermittent dehydration is used for advanced dehydration, so that the phenomenon of dehydration with water in the subsequent high-speed stage due to a large load with large water content is avoided. In this example, the number of intermittent dehydration was 3. In the case of the medium load, the number of intermittent dehydration may be set to 1-2 times. The number of intermittent dehydration can also be determined according to practical conditions. It should be noted that the third drainage strategy corresponding to the third rotational speed control strategy may be as follows: at the stage t1 in FIG. 5, the drain pump is opened to perform uninterrupted drainage; and performing intermittent drainage in a t2 stage and a t3 stage. Therefore, the water in the drainage pump is kept full, and the probability of half water and half gas conditions is reduced.
Therefore, the application carries out step control on loads with different weights, thereby shortening the dehydration time when the load capacity is smaller; when the load capacity is large, intermittent dehydration is utilized to carry out advanced dehydration, and corresponding drainage strategies are set according to different drainage speeds, so that the drainage pump is kept full of water in the dehydration process, the drainage performance is improved, and the probability of dehydration with water in a subsequent high-speed stage is reduced.
Fig. 5a is an enlarged view of stage t2 in fig. 5. In this embodiment, by finely controlling the drainage, a better drainage effect is achieved. Specifically, fig. 5a shows a rotational speed control method with three intermittent dehydration, wherein each intermittent dehydration includes four sections, namely a first section t2-1 with smooth rotational speed, a second section t2-2 with increased rotational speed, a third section t2-3 with decreased rotational speed, and a fourth section t2-4 with further decreased rotational speed. In this embodiment, the drain pump is kept on for periods t2-1 and t2-2, the drain pump is turned off for period t2-3, and the drain pump is intermittently turned on for period t2-4. Specifically, t2-1 is an eccentric detection stage, and the drainage pump is always started; t2-2 is a step of increasing the speed from 90rpm to 350rpm or 400rpm, the unit time of the load in the step is the largest in drainage amount, and the drainage pump is always started; t2-3 is an initial deceleration stage, the drainage amount is reduced, the drainage pump is firstly closed for a period of time, and when the drainage pump stops working, washing water in an ascending section on the drainage pipe flows back under the action of gravity, so that the drainage pump is full of water, a semi-water semi-air state is not caused, and dewatering with water is avoided; and a speed-reducing stage after t2-4, wherein the drainage pump is started alternately according to a certain time sequence, namely, drainage is performed, and dehydration with water caused by water-vapor mixing state is avoided. It should be noted that the critical rotation speed for distinguishing the period t2-3 from the period t2-4 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 period t2-3 and the period t2-4.
Fig. 5b is an enlarged view of stage t3 in fig. 5. As shown in fig. 5b, after entering the stage t3, the rotation speed of the dewatering drum is increased stepwise until reaching the set target rotation speed of 1200rpm. Each rise can be divided into a rise speed stage t3-1, an initial stage t3-2 for maintaining the rotating speed and a stable stage t3-3 for maintaining the rotating speed. Wherein, the dehydration speed of the load at the t3-1 stage is the fastest, and the drainage pump is always started. the drainage amount in the stage t3-2 is reduced, the drainage pump is closed, and when the drainage pump stops working, washing water in the ascending section 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-air state is not caused, and dehydration with water is avoided; the draining pump is started alternately according to a certain time sequence in the stage t3-3, namely, the draining is performed, and the dehydration with water caused by the water-vapor mixing state is avoided. Thus, an improvement in dewatering performance can be achieved.
In one embodiment, a dehydration speed detection device may be further provided, and the drainage strategy may be modified according to the detected dehydration speed, so as to modify the predicted dehydration speed under special conditions such as abnormal water content caused by special clothes types, so as to achieve the matching of the dehydration speed under special conditions and the drainage speed, and further avoid the semi-water and semi-air state in the drainage pump, further avoid the occurrence of the dehydration phenomenon with water, and ensure the dehydration performance.
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 amount detection device, a water draining device and a control device. The load amount detection device is electrically connected with the dewatering barrel and is used for detecting the load amount in the dewatering barrel; the drainage device comprises a drainage pump, wherein the drainage pump is used for draining the washing water thrown out of the dewatering barrel to the outside of the washing machine; the control device is electrically connected with the drainage pump, the load capacity detection device and the dewatering barrel and is used for determining a rotating speed control strategy according to the load capacity; predicting the dehydration speed according to a rotational speed control strategy; and determining a drainage strategy according to the dewatering speed, and controlling the drainage pump to drain according to the drainage strategy so as to reduce foam in the washing water in the dewatering barrel.
Fig. 6 is a schematic structural view of a dehydration control apparatus for a washing machine according to an embodiment of the present application. As shown in fig. 6, the apparatus includes at least:
an acquisition unit 610 for acquiring a load amount in the dehydration tub in response to the dehydration instruction;
a determining unit 620, configured to determine a rotational speed control strategy according to the load amount;
a prediction unit 630 for predicting the dehydration speed according to a rotational speed control strategy;
and a drainage policy determining unit 640 for determining a drainage policy according to the dehydration speed to reduce foam in the washing water in the dehydration tub, wherein the drainage policy includes a drainage interval.
According to another aspect of the present application, there is also provided an electronic device comprising a processor and a memory, the memory having stored therein a computer readable program which, when executed by the processor, causes the device to perform the method of controlling dehydration of a washing machine as previously described.
The inventive concepts of the above-described washing machine, washing machine dehydration control apparatus, and electronic device are consistent with the foregoing washing machine dehydration control method, and will not be described in detail herein.
While the application has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and 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 (7)
1. A method for controlling dehydration of a washing machine, characterized in that the washing machine is provided with a first dehydration stage and a second dehydration stage, and the rotation speed of the first dehydration stage is lower than that of the second dehydration stage; the second dehydration stage comprises a speed increasing stage and a speed stabilizing stage after the speed increasing stage, wherein the dehydration speed of the speed increasing stage is higher than that of the speed stabilizing stage, and the dehydration speed is the water loss of the to-be-dehydrated matters in the inner barrel in unit time; the method comprises the following steps:
responding to a dehydration instruction, and acquiring the load capacity in a dehydration barrel;
determining a rotating speed control strategy of the washing machine according to the load quantity; it comprises the following steps: determining the dehydration times of the periodic dehydration of the first dehydration stage, and controlling the dehydration barrel to dehydrate the dehydration times at preset dehydration intervals;
predicting the dehydration speed according to the rotation speed control strategy; it comprises the following steps: if one dehydration period comprises a speed increasing stage and a speed decreasing stage after the speed increasing stage, predicting that the dehydration speed of the speed increasing stage is greater than that of the speed decreasing stage;
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; it comprises the following steps: and controlling the dewatering barrel to drain in the speed increasing stage, controlling the dewatering barrel to drain in the speed decreasing stage at a first preset time interval, and controlling the dewatering barrel to drain in the speed stabilizing stage at a second preset time interval, wherein the second preset time interval is larger than the first preset time interval.
2. The method of claim 1, wherein the washing machine includes a drain pump for draining the washing water thrown out of the dewatering tub; the method further comprises the steps of:
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.
3. The method of claim 1, wherein after said responding to a 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;
obtaining the eccentric amount in the dehydration barrel;
and under the condition that the eccentric amount is smaller than or equal to a preset eccentric upper limit value, acquiring the load capacity in the dewatering barrel.
4. A method according to claim 3, wherein after said predicting a dewatering speed according to said rotational speed control strategy, the method further comprises:
detecting the dehydration speed;
and correcting a drainage strategy of the washing machine according to the detected dehydration speed.
5. A washing machine for performing the method of any one of claims 1-4, comprising:
a dehydration barrel;
the load amount detection device is electrically connected with the dewatering barrel and is used for detecting the load amount in the dewatering barrel;
the drainage device comprises a drainage pump, wherein the drainage pump is used for draining the washing water thrown out of the dewatering barrel to the outside of the washing machine;
the control device is electrically connected with the drainage pump, the load capacity detection device and the dewatering barrel and is used for determining a rotating speed control strategy according to the load capacity; predicting the dehydration speed according to the rotation speed control strategy; and determining a drainage strategy according to the dewatering speed, and controlling the drainage pump to drain according to the drainage strategy so as to reduce foam in the washing water in the dewatering barrel.
6. A washing machine dehydration control apparatus for performing the method of any one of claims 1-4, said apparatus comprising:
an acquisition unit for acquiring the load in the dewatering barrel in response to the dewatering instruction;
the determining unit is used for determining a rotating speed control strategy of the washing machine according to the load quantity;
the prediction unit is used for predicting the dehydration speed according to the rotation speed control strategy;
and the drainage strategy making unit is used for determining a drainage strategy according to the dewatering speed so as to reduce foam in the washing water in the dewatering barrel, wherein the drainage strategy comprises a drainage interval.
7. An electronic device, the device comprising:
a processor;
a memory having stored therein a computer readable program which, when executed by the processor, causes the apparatus to perform the washing machine dehydration control method of any one of claims 1 to 4.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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