CN111962249A - Washing machine and control method thereof - Google Patents
Washing machine and control method thereof Download PDFInfo
- Publication number
- CN111962249A CN111962249A CN202010811049.0A CN202010811049A CN111962249A CN 111962249 A CN111962249 A CN 111962249A CN 202010811049 A CN202010811049 A CN 202010811049A CN 111962249 A CN111962249 A CN 111962249A
- Authority
- CN
- China
- Prior art keywords
- water level
- washing machine
- control method
- washing
- inner barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005406 washing Methods 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 156
- 238000004140 cleaning Methods 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 abstract description 5
- 230000001133 acceleration Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
- D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
- D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
-
- 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
- D06F33/43—Control of cleaning or disinfection of washing machine parts, e.g. of tubs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid level
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention provides a control method of a washing machine and the washing machine, and relates to the technical field of self-cleaning of the washing machine. The control method of the washing machine includes: before entering the drainage stage, judging whether the water level in the outer barrel is higher than a preset washing water level or not; if yes, controlling the drainage valve to open; when the water level is discharged to meet the cleaning water level, the inner barrel and the impeller are controlled to rotate synchronously so as to self-clean the inner barrel wall and the outer barrel wall by utilizing the water flow which is agitated between the inner barrel and the outer barrel. The washing machine can drive water in the barrel to continuously agitate to wash the inner barrel wall and the outer barrel wall by controlling the inner barrel and the impeller to rotate together in the washing process, so that the residual and accumulation of stains are avoided, and the timely self-cleaning of the washing machine is realized.
Description
Technical Field
The invention relates to the technical field of self-cleaning of washing machines, in particular to a control method of a washing machine and the washing machine.
Background
After washing, the existing washing machine has the defects that part of stain residues are adhered to the inner and outer barrel walls of the washing machine and cannot be cleaned and discharged in time; along with the increase of the washing period, a large amount of dirt can be accumulated on the inner and outer barrel walls of the washing machine, bacteria are bred, and secondary pollution is caused to subsequent washing.
In order to achieve the cleaning function of the inner barrel wall and the outer barrel wall of the existing part of washing machines, a special cleaning spraying device needs to be added, the cleaning effect is not ideal, comprehensive cleaning cannot be achieved, and the cost is increased. Some washing machines have special self-cleaning functions, the self-cleaning process comprises water inlet, cleaning and water discharge, time and water consumption are caused, a user is required to trigger a self-cleaning program or automatically clean according to times, residual dirt cannot be timely removed, and the influence on the washing environment still exists.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the washing machine and the control method thereof are provided, in the washing process, the inner barrel and the impeller are controlled to rotate together to drive the water in the barrel to rotate to a certain height, the rotating and rising water continuously surges to wash and clean the inner barrel wall and the outer barrel wall, so that the residual and accumulation of stains are avoided, and the timely self-cleaning of the washing machine is realized.
According to an aspect of the present disclosure, there is provided a control method of a washing machine including: the water level control device comprises an outer barrel, an inner barrel, a wave wheel, a drain valve, a water level sensor and a motor for driving the inner barrel and the wave wheel to rotate, and the control method comprises the following steps: before entering the drainage stage, judging whether the water level in the outer barrel is higher than a preset washing water level or not; if yes, controlling the drainage valve to open; when the water level is discharged to meet the cleaning water level, the inner barrel and the impeller are controlled to rotate synchronously so as to self-clean the inner barrel wall and the outer barrel wall by utilizing the water flow which is agitated between the inner barrel and the outer barrel.
According to some embodiments of the present disclosure, the step of controlling the inner tub and the pulsator to rotate synchronously includes: controlling the inner barrel and the impeller to synchronously accelerate to a preset rotating speed and rotate for a preset time.
According to some embodiments of the present disclosure, a liquid level sensor is disposed on an outer tub of the washing machine, the liquid level sensor being located at a highest position of a water level when fully loaded; the step of controlling the inner barrel and the impeller to synchronously rotate is as follows: and controlling the inner barrel and the impeller to synchronously rotate at the rotating speed when the liquid level sensor monitors the signals for a preset time when the liquid level sensor monitors the signals.
According to some embodiments of the present disclosure, the drain valve is controlled to be opened while the inner tub and the pulsator are controlled to synchronously rotate at a rotation speed at which the liquid level sensor monitors the signal for a preset time period.
According to some embodiments of the present disclosure, the drain valve is controlled to close when the water level is drained to meet the rinse water level.
According to some embodiments of the present disclosure, if the water level is lower than the washing water level, a normal draining stage is entered.
According to some embodiments of the present disclosure, after the step of controlling the inner tub and the pulsator to be synchronously rotated, the control method further includes: and entering a normal drainage stage after the inner barrel and the impeller stop rotating.
According to some embodiments of the present disclosure, the control method further includes running a laundry balancing program before the step of controlling the inner tub and the pulsator to rotate in synchronization.
According to some embodiments of the present disclosure, the draining phase is a draining phase in a washing course, or a draining phase in a rinsing course.
According to another aspect of the present disclosure, there is provided a washing machine including: an outer tub; the inner barrel is rotatably arranged in the outer barrel, and the bottom of the inner barrel is provided with a wave wheel; a motor for providing a driving force for rotation of the inner tub and the pulsator; a water level sensor for monitoring a water level in the outer tub; a drain valve that discharges the washing water to the outside of the washing machine in an open state; and a controller for: before entering the drainage stage, judging whether the water level in the outer barrel is higher than a preset washing water level or not; if yes, controlling the drainage valve to open; when the water level is discharged to meet the cleaning water level, the inner barrel and the impeller are controlled to rotate synchronously so as to self-clean the inner barrel wall and the outer barrel wall by utilizing the water flow which is agitated between the inner barrel and the outer barrel.
According to the washing machine and the control method thereof provided by the disclosure, the self-cleaning program is generated in the washing process, the inner and outer barrel walls are cleaned by using water to be discharged in the washing machine, self-cleaning is realized, and secondary utilization of the water is realized at the same time, so that the problem of time and water consumption caused by self-cleaning through additional water inlet in the related art is avoided, and the self-cleaning program of the washing machine reduces water consumption and saves washing time. In addition, in the washing process, if the water level meets the washing water level, the self-cleaning program can be automatically executed, so that the dirt of the inner and outer barrels can be timely washed, the problem of dirt accumulation caused by the fact that a user needs to trigger the self-cleaning program or wash clothes for several times for one-time self-cleaning in the related technology is solved, and the self-cleaning program of the washing machine has the advantages of timely and completely automatic washing; this openly through impeller and interior barrel integrative rotatory, the cooperation drives quantitative rivers, and rivers are swashed the impact force and are great with range, even stubborn spot also can reach better cleaning performance in short time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a sectional view of a washing machine according to an embodiment of the present disclosure;
fig. 2 is a control block diagram of a washing machine according to an embodiment of the present disclosure;
FIG. 3 is a view from the direction A of FIG. 1;
FIG. 4 is a flow chart of the operation of a washing machine according to one embodiment of the present disclosure;
fig. 5 is a flowchart of a control method of a washing machine according to one embodiment of the present disclosure;
fig. 6 is a flowchart of a control method of a washing machine according to another embodiment of the present disclosure;
fig. 7 is a flowchart of a control method of a washing machine according to still another embodiment of the present disclosure;
fig. 8 is a flowchart of a control method of a washing machine according to still another embodiment of the present disclosure;
in the above drawings: 10. a housing; 101. a door; 11. an outer tub; 111. a communication port; 12. an inner barrel; 121. a balancer; 13. an impeller; 14. a motor; 15. a clutch; 16. a drain valve; 17. a water supply valve; 19. a water supply pipe; 20. a drain pipe; 30. a controller; 40. a drive unit; 50. a sensing unit; 51. a water level sensor; 52. a float switch; 521. a float; 522. a detection switch; 60. an input unit; 70. a display.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in the embodiments do not limit the scope of the present invention unless specifically stated otherwise. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
Fig. 1 illustrates a sectional view of a washing machine according to an embodiment of the present disclosure.
Referring to fig. 1, a washing machine according to an embodiment of the present disclosure includes: a housing 10 forming the external appearance of the main body of the washing machine; an outer tub 11 installed inside the casing 10 for containing water, wash water or rinse water; an inner tub 12 rotatably installed inside the outer tub 11 for accommodating laundry; a pulsator 13 rotatably installed at the center of the bottom of the inner tub 12.
A door 101 is installed at an upper side of the casing 10, and the door 101 is opened to load laundry into the inner tub 12 or remove laundry from the inner tub 12.
The inner barrel 12 is cylindrical with an open top. A plurality of water permeable holes are formed on the side surface of the inner barrel 12. The balancer 121 is mounted at the upper portion of the inner tub 12 so that the inner tub 12 can be stably rotated at a high speed.
A motor 14 and a clutch 15 are installed at the lower outside of the outer tub 11, the motor 14 generating a driving force for rotating the inner tub 12 and the pulsator 13, and the clutch 15 allowing the motor 14 to simultaneously drive the inner tub 12 and the pulsator 13 or selectively drive the inner tub 12 or the pulsator 13.
A water supply device for supplying water is installed at an inner upper side of the housing 10. The water supply device includes a water supply pipe 19 connected to an external water inlet pipe to supply water into the outer tub 11; and a water supply valve 17 installed on the water supply pipe 19 to control the supply and stop of water.
A drain valve 16 is installed at the bottom of the outer tub 11, an outlet of the drain valve 16 is connected to a drain pipe 20, and water in the outer tub 11 is discharged to the outside of the washing machine through the drain pipe 20 when the drain valve 16 is opened.
Fig. 2 is a control block diagram of a washing machine according to the present disclosure.
Referring to fig. 2, a washing machine according to an embodiment of the present disclosure may include: a sensing unit 50, an input unit 60, a driving unit 40, a controller 30, and a display 70.
A sensing unit 50 for collecting various data required for controlling the operation of the washing machine; the sensing unit 50 may include a water level sensor 51 for monitoring a water level of the outer tub 11, a weight sensor for sensing a weight of laundry, a liquid level sensor installed at a maximum water level when the outer tub 11 is fully loaded, and the like. The level sensor in the present embodiment is illustrated by a float switch 52.
In the washing machine of the present disclosure, the water level sensor 51 is also used to monitor whether the water level of the outer tub 11 satisfies a preset washing water level; the float switch 52 is also used to determine the surge height of the water flow during the self-cleaning procedure (this section will be described in detail later).
Referring to fig. 3, the float switch 52 includes a float 521 and a monitor switch 522; specifically, a monitoring switch 522 is provided at a maximum allowable water level position on the outer tub 11, an accommodating cavity is further provided on the outer tub 11 at the maximum allowable water level position, the float 521 is located in the accommodating cavity, a communication port 111 is provided at a lower end of the accommodating cavity, and the reclaimed water in the outer tub 11 can enter the accommodating cavity from the communication port 111. When the water flow reaches the communication port 111, the float 521 gradually rises with the water flow until the float 521 reaches the position of the monitoring switch 522, and the monitoring switch 522 detects that the float 521 immediately sends out a signal.
An input unit 60 for receiving an input instruction of a user, such as an instruction of a washing course, a rinsing course, a dehydrating course, etc.; the input unit 60 may be a key, a knob, a switch, a touch pad, etc. The input unit 60 includes all devices that generate predetermined input data by operations (e.g., pressing, rotating, touching).
A display 70 for displaying information on the operation of the washing machine and a display state guiding user input.
The controller 30 may be a microcomputer that controls the overall operation of the washing machine according to the operation information input by the input unit 60. The controller 60 may include a memory for storing a program for performing the above-described operations and various data, and a processor for executing the program stored in the memory to process the data.
And a driving unit 40 driving the motor 14, the water supply valve 17, and the drain valve 16 based on the control signal transmitted from the controller 30.
Hereinafter, a washing machine according to an embodiment and a control method of a washing machine according to an embodiment will be described together. In performing the control method of the washing machine of an embodiment, the washing machine described above with reference to fig. 1 may be used.
Fig. 4 is a flowchart of the operation of a washing machine according to one embodiment of the present disclosure.
Referring to fig. 4, the main washing operation of the washing machine mainly includes a washing course, a rinsing course, and a dehydrating course. The self-cleaning program of the washing machine of the embodiment of the present disclosure occurs before the drainage stage of the washing process, which may be the drainage stage of the washing course or the drainage stage of the rinsing course. That is, self-cleaning may selectively occur before the draining of the washing course or before the draining of the rinsing course, or a self-cleaning process may be performed in both courses.
Specifically, in the present example, the self-cleaning process is described as an example in which it occurs before the drainage of the last rinsing course, and the self-cleaning occurring at other stages is performed with reference to.
When the last rinsing is finished (101) and before drainage occurs, a water level sensor monitors whether the water level in the washing machine is higher than a preset cleaning water level (201), and if so, a self-cleaning program (202) can be executed; if not, the washing machine automatically enters a normal drainage stage (102) and cannot execute a self-cleaning program.
The self-cleaning program of the washing machine is generated in the washing process, the inner and outer barrel walls are cleaned by using the rinse water to be discharged in the washing machine, the secondary utilization of water is realized while the self-cleaning is realized, the problem of time-consuming water consumption caused by the fact that the self-cleaning is realized through additional water inlet in the related technology is avoided, and the self-cleaning program of the washing machine reduces the water consumption and saves the washing time.
In addition, in the washing process, if the water level meets the washing water level, the self-cleaning program can be automatically executed, so that the dirt of the inner barrel and the outer barrel can be timely washed, the problem of dirt accumulation caused by the fact that a user needs to trigger the self-cleaning program or wash clothes for several times for one-time self-cleaning in the related art is solved, and the self-cleaning program of the washing machine has the advantages of timely and completely automatically washing.
Fig. 5 is a flowchart of a control method of a washing machine according to an embodiment of the present disclosure.
Referring to fig. 5, the control method of the washing machine includes: when the last rinsing is finished (101), a water level sensor monitors whether the water level of rinsing water stored in the outer barrel is higher than a cleaning water level (201), if not, the washing machine enters a normal drainage stage, and self-cleaning is not executed; if yes, the drain valve is opened to drain water, meanwhile, the water level sensor monitors the water level (202a), the drain valve (202b) is closed when the water level is discharged to meet the cleaning water level, the inner barrel and the impeller are locked to rotate synchronously (202c), so that the water flow is driven to rotate to a certain height, the rotating and rising water flow continuously surges to wash the inner barrel wall and the outer barrel wall (the outer wall of the inner barrel and the inner wall of the outer barrel), the purpose of cleaning the inner barrel wall and the outer barrel wall is achieved, and the residue and accumulation of stains.
According to the embodiment of the disclosure, the inner barrel and the impeller rotate synchronously to generate stronger water flow rotation agitation, so that the problems of weaker water flow impact force and poor cleaning effect when the inner barrel or the impeller rotates independently are avoided; the problem that the surging water flow impact cannot be generated when too much or too little water is generated can be avoided by presetting the cleaning water level. This openly through impeller and interior barrel integrative rotatory, the cooperation drives quantitative rivers, and rivers are swashed the impact force and are great with range, even stubborn spot also can reach better cleaning performance in short time.
The preset washing water level is not required to be too high, and the washing machine can automatically carry out a self-cleaning procedure after almost every time of washing clothes, so that the washed dirt components are removed in time, the dirt component adhesion is reduced, and the service life of the barrel body is prolonged while the clothes are healthily washed.
In some embodiments of the present disclosure, the specific steps of the inner tub and pulsator locking synchronous rotation (202c) are: controlling the inner barrel and the impeller to synchronously accelerate to a preset rotating speed and rotate for a preset time. In this embodiment, the inner tub and the pulsator rotate at a preset rotation speed. The preset rotating speed is obtained through multiple tests, so that a better water flow sloshing effect can be achieved under the preset rotating speed.
Exemplarily, the water level sensor monitors a washing water level, and when the water level is higher than the washing water level, the water is discharged to the washing water level, the drain valve is closed, and the inner tub and the pulsator integrally rotate: accelerating to a preset rotating speed according to the acceleration a, and ending the continuous operation for t (0-60 s). When the operation is finished, the inner barrel and the impeller can freely rotate by means of inertia for t1(0-20s) and the rotating speed is reduced to 0, or the rotating speed is reduced to 0 by the locking of the clutch within t3(0-20s) after the operation is finished; and in the subsequent drainage stage, the dirt is drained out of the washing machine along with the water flow.
Fig. 6 is a flowchart of a control method of a washing machine according to another embodiment of the present disclosure.
Referring to fig. 6, unlike the embodiment of fig. 5, a laundry rebalancing process (202e) is added before the step of locking the inner tub and the pulsator to rotate synchronously (202c), and the laundry rebalancing is realized by the rotation of the inner tub and the pulsator, the principle of which is the prior art and will not be described in detail herein.
Because the self-cleaning of this disclosure takes place in the laundry process, in order to avoid inner tub and impeller rotatory together to produce the in-process of swashing the rivers, the unbalanced emergence of clothing hits the bucket phenomenon, and this embodiment has increased the process that the clothing of washing carries out balanced processing once more, can reduce the bucket risk of hitting of carrying the clothing when self-cleaning.
Illustratively, the water level sensor monitors a washing water level, and when the water level is higher than the washing water level, drains water to the washing water level, closes the drain valve, runs a laundry balancing program, re-balances the laundry, and then controls the inner tub and the pulsator to integrally rotate: accelerating to the set rotating speed according to the acceleration a, and ending the continuous operation for time t (0-60 s). When the operation is finished, the inner barrel and the impeller can freely rotate by means of inertia for t1(0-20s) and the rotating speed is reduced to 0, or the rotating speed is reduced to 0 by the locking of the clutch within t3(0-20s) after the operation is finished; and then entering a drainage stage.
Fig. 7 is a flowchart of a control method of a washing machine according to still another embodiment of the present disclosure.
Referring to fig. 7, unlike the above embodiment, in this embodiment, the rotation speed of the inner tub and the pulsator integrally and synchronously rotated is not set any more, and the rotation speed thereof is automatically adjusted and acquired according to the actual condition because: the self-cleaning program of the present disclosure occurs in the washing process, and different clothes to be washed have different effects on the rotation of the water flow driven by the inner tub and the pulsator, for example, when more clothes are present, the rising height of the water flow driven by the inner tub and the pulsator may be lower, and the inner and outer tub walls cannot be completely cleaned; when the clothes are small, the height of the water flow lifted by the barrel and the impeller may be high and may exceed the maximum water level allowed by the outer barrel. Therefore, the temperature of the molten metal is controlled,
in this embodiment, the specific steps of locking the inner tub and the pulsator to rotate synchronously are as follows: and controlling the inner barrel and the impeller to synchronously rotate at the rotating speed when the float switch monitors the signals for a preset time when the float switch monitors the signals.
Specifically, after the water level meets the cleaning water level, the drain valve is closed (202b), the inner barrel and the impeller are synchronously accelerated (203a), the water flow is driven to continuously rotate and rise along with the increase of the speed of the inner barrel and the impeller, when the float switch monitors a signal (203b), the controller controls the inner barrel and the impeller not to continuously accelerate any more, and the rotation speed (203c) when the float switch monitors the signal is kept, so that no matter how many clothes are washed, the rotation speed can ensure that the surging water flow can reach the maximum water level allowed by the outer barrel, and the comprehensive cleaning of the inner barrel wall and the outer barrel wall is realized.
The embodiment of the disclosure adjusts the rotating speed of the inner barrel and the impeller by monitoring the surging height of the cleaning water flow through the float switch, can adapt to self-cleaning requirements of different working conditions, and has wider adaptability and more comprehensive cleaning.
Illustratively, the water level sensor monitors a washing water level, and when the water level is higher than a washing water level, drains water to the washing water level, the drain valve is closed, and then the inner tub and the pulsator integrally rotate: accelerating according to the acceleration a until the floater switch detects that the water reaches the corresponding position, keeping the inner barrel and the impeller at the rotating speed and continuously running for t (0-60s) for the end. When the operation is finished, the inner barrel and the impeller can rotate freely for t1(0-20s) and the rotating speed is reduced to 0, or the clutch is locked to reduce the rotating speed to 0 within t3(0-20s) after the operation is finished; and then entering a drainage stage.
Fig. 8 is a flowchart of a control method of a washing machine according to still another embodiment of the present disclosure.
Referring to fig. 8, different from the above embodiment, in the process that the inner tub and the pulsator are rotated synchronously to drive the water flow to wash the inner and outer tubs, the drain valve is opened (203d), so that the water is drained in the self-cleaning process, and the water can directly enter the dewatering process after the self-cleaning is finished, thereby saving the time of the draining stage and shortening the whole washing time.
Because the self-cleaning program is almost carried out in the process of washing clothes every time, the stains on the inner and outer barrel walls are timely cleaned, so that stubborn stains are generally not accumulated on the inner and outer barrel walls, the cleaning requirement of the barrel walls can be met by gradually reducing the surging water flow along with the drainage during self-cleaning, and the time can be saved.
Exemplarily, the water level sensor monitors a washing water level, and when the water level is higher than the washing water level, the water is discharged to the washing water level, the drain valve is closed, and the inner tub and the pulsator integrally rotate: accelerating according to the acceleration a until the floater switch detects that the water reaches the corresponding position, keeping the inner barrel and the impeller at the rotating speed and continuously running for t (0-60s) till the time is over, and opening the synchronous drain valve. When the operation is finished, the inner barrel and the impeller can rotate freely for t1(0-20s) and the rotating speed is reduced to 0, or the clutch is locked to reduce the rotating speed to 0 within t3(0-20s) after the operation is finished; the water discharge valve is finished until the water discharge is empty, and then the dehydration program is executed.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A control method of a washing machine, the washing machine including an outer tub, an inner tub, a pulsator, a drain valve, a water level sensor, and a motor driving the inner tub and the pulsator to rotate, the control method comprising:
before entering the drainage stage, judging whether the water level in the outer barrel is higher than a preset washing water level or not;
if yes, controlling the drainage valve to open;
when the water level is discharged to meet the cleaning water level, the inner barrel and the impeller are controlled to rotate synchronously so as to self-clean the inner barrel wall and the outer barrel wall by utilizing the water flow which is agitated between the inner barrel and the outer barrel.
2. The control method according to claim 1, wherein the step of controlling the synchronous rotation of the inner tub and the pulsator is specifically:
controlling the inner barrel and the impeller to synchronously accelerate to a preset rotating speed and rotate for a preset time.
3. The control method according to claim 1, wherein a liquid level sensor is provided on the outer tub of the washing machine, the liquid level sensor being located at a highest water level when fully loaded;
the step of controlling the inner barrel and the impeller to synchronously rotate is as follows:
and controlling the inner barrel and the impeller to synchronously rotate at the rotating speed when the liquid level sensor monitors the signals for a preset time when the liquid level sensor monitors the signals.
4. The control method according to claim 3, wherein the drain valve is controlled to be opened while the inner tub and the pulsator are controlled to be rotated in synchronization for a preset time period at a rotation speed at which the liquid level sensor monitors the signal.
5. The control method according to claim 1, wherein when the water level is drained to meet a washing water level, a drain valve is controlled to be closed.
6. The control method according to claim 1, wherein if the water level is lower than the washing water level, a normal draining stage is entered.
7. The control method as set forth in claim 1, wherein after the step of controlling the inner tub and the pulsator to be synchronously rotated, the control method further comprises: and entering a normal drainage stage after the inner barrel and the impeller stop rotating.
8. The control method as claimed in claim 1, further comprising running a laundry balancing program before the step of controlling the inner tub and the pulsator to be synchronously rotated.
9. The control method according to any one of claims 1 to 8, wherein the draining stage is a draining stage in a washing course or a draining stage in a rinsing course.
10. A washing machine, characterized in that the washing machine comprises:
an outer tub;
the inner barrel is rotatably arranged in the outer barrel, and the bottom of the inner barrel is provided with a wave wheel;
a motor for providing a driving force for rotation of the inner tub and the pulsator;
a water level sensor for monitoring a water level in the outer tub;
a drain valve that discharges the washing water to the outside of the washing machine in an open state; and
a controller to:
before entering the drainage stage, judging whether the water level in the outer barrel is higher than a preset washing water level or not;
if yes, controlling the drainage valve to open;
when the water level is discharged to meet the cleaning water level, the inner barrel and the impeller are controlled to rotate synchronously so as to self-clean the inner barrel wall and the outer barrel wall by utilizing the water flow which is agitated between the inner barrel and the outer barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010811049.0A CN111962249A (en) | 2020-08-13 | 2020-08-13 | Washing machine and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010811049.0A CN111962249A (en) | 2020-08-13 | 2020-08-13 | Washing machine and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111962249A true CN111962249A (en) | 2020-11-20 |
Family
ID=73366075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010811049.0A Pending CN111962249A (en) | 2020-08-13 | 2020-08-13 | Washing machine and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111962249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000310A (en) * | 2021-11-02 | 2022-02-01 | 珠海格力电器股份有限公司 | Washing machine self-cleaning control method and device, storage medium and washing machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014133182A (en) * | 2014-04-28 | 2014-07-24 | Hitachi Appliances Inc | Washing machine |
| JP2014166594A (en) * | 2014-06-19 | 2014-09-11 | Hitachi Appliances Inc | Washing machine |
| JP2016002263A (en) * | 2014-06-17 | 2016-01-12 | 株式会社東芝 | Washing/dewatering machine |
| JP2016135262A (en) * | 2016-02-26 | 2016-07-28 | 日立アプライアンス株式会社 | Drum-type washing machine |
| CN106170589A (en) * | 2014-02-21 | 2016-11-30 | 东芝生活电器株式会社 | Washing machine |
| JP2018130376A (en) * | 2017-02-16 | 2018-08-23 | 東芝ライフスタイル株式会社 | Washing machine |
| CN110366618A (en) * | 2017-03-07 | 2019-10-22 | 东芝生活电器株式会社 | Washing machine |
-
2020
- 2020-08-13 CN CN202010811049.0A patent/CN111962249A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106170589A (en) * | 2014-02-21 | 2016-11-30 | 东芝生活电器株式会社 | Washing machine |
| JP2014133182A (en) * | 2014-04-28 | 2014-07-24 | Hitachi Appliances Inc | Washing machine |
| JP2016002263A (en) * | 2014-06-17 | 2016-01-12 | 株式会社東芝 | Washing/dewatering machine |
| JP2014166594A (en) * | 2014-06-19 | 2014-09-11 | Hitachi Appliances Inc | Washing machine |
| JP2016135262A (en) * | 2016-02-26 | 2016-07-28 | 日立アプライアンス株式会社 | Drum-type washing machine |
| JP2018130376A (en) * | 2017-02-16 | 2018-08-23 | 東芝ライフスタイル株式会社 | Washing machine |
| CN110366618A (en) * | 2017-03-07 | 2019-10-22 | 东芝生活电器株式会社 | Washing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000310A (en) * | 2021-11-02 | 2022-02-01 | 珠海格力电器股份有限公司 | Washing machine self-cleaning control method and device, storage medium and washing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100716336B1 (en) | Drum type washing machine | |
| RU2300594C2 (en) | Drum-type washing machine | |
| KR102606118B1 (en) | Method for controlling washing machine | |
| JP5489328B2 (en) | Drum washing machine | |
| EP2447409B1 (en) | Washing machine and method of controlling the same | |
| KR102522794B1 (en) | How to wash the drum washing machine and the tub of the drum washing machine | |
| JP2012170694A (en) | Drum washing machine | |
| KR20180057710A (en) | washer | |
| KR20160146057A (en) | Washing machine and control method thereof | |
| US8615833B2 (en) | Method and washing machine provided with recirculation with controlled flow | |
| CN111962249A (en) | Washing machine and control method thereof | |
| JP2012170696A (en) | Drum washing machine | |
| JP5945719B2 (en) | Drum washing machine | |
| JP2011217966A (en) | Washing machine | |
| JP2010268842A (en) | Washing machine | |
| JP2009273544A (en) | Washing machine | |
| JP2013255530A (en) | Washing machine | |
| JP5889575B2 (en) | Washing machine | |
| JP4957748B2 (en) | Washing machine | |
| JP6158397B2 (en) | Drum washing machine | |
| JP6139574B2 (en) | Drum washing machine | |
| CN113136688B (en) | Washing machine and control method thereof | |
| KR101447151B1 (en) | Washing machine and method of controlling the same | |
| KR101139248B1 (en) | Washing machine and Its Control Method | |
| KR20090120575A (en) | Method of controlling washing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201120 |