CN113106692A - Washing machine and control method thereof - Google Patents
Washing machine and control method thereof Download PDFInfo
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- CN113106692A CN113106692A CN202010030626.2A CN202010030626A CN113106692A CN 113106692 A CN113106692 A CN 113106692A CN 202010030626 A CN202010030626 A CN 202010030626A CN 113106692 A CN113106692 A CN 113106692A
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- 238000005406 washing Methods 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 244
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims description 29
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 11
- 101150114468 TUB1 gene Proteins 0.000 description 9
- 210000003205 muscle Anatomy 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 241000283216 Phocidae Species 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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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
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
- D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about a horizontal axis
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- 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
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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
- D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/087—Water level measuring or regulating devices
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- 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)
- Control Of Washing Machine And Dryer (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention discloses a washing machine and a control method thereof, wherein the washing machine comprises an outer cylinder, an inner cylinder which can independently contain washing water in the washing and rinsing processes, and a detection device for detecting the water level in the outer cylinder. The inner barrel of the washing machine independently holds washing water in the washing and rinsing processes, and the detection device is arranged to detect the water level in the outer barrel, so that whether the inner barrel leaks water or not can be judged, and the influence of the water leakage of the inner barrel on the washing of clothes is avoided.
Description
Technical Field
The invention belongs to the technical field of washing machines, and particularly relates to a washing machine and a control method thereof.
Background
Most of the drum washing machines adopt an outer drum to contain water, an inner drum to contain clothes to work in a washing mode, and an interlayer between the inner drum and the outer drum is dirty and difficult to clean, and can also cause bacterial reproduction. With the increase of the attachment of the dirt, secondary pollution can be caused to the clothes, and the health of the user is threatened. Meanwhile, the water in the interlayer does not participate in washing the clothes, and waste of water resources is caused to a certain extent. In order to solve the above problems, a common solution is to design an inner cylinder that is sealed during the washing process, so that the washing water only exists in the inner cylinder and does not enter between the inner cylinder and the outer cylinder during the washing process.
Chinese patent application No. 201821723525.8 discloses a drum washing machine, which comprises an inner drum, wherein the inner drum is a non-porous inner drum, and is used for containing washing water when washing clothes, and further comprises a pressurizing mechanism and/or a pressure relief mechanism which is used for communicating the inner drum with the external environment so as to balance the internal air pressure of the inner drum. In the scheme, the sealing structure of the inner barrel in the washing process is realized by arranging the imperforate inner barrel and arranging the inner barrel door at the barrel opening of the inner barrel, and the dewatering holes are opened to drain water under the action of centrifugal force of high-speed rotation of the inner barrel by arranging the centrifugal valve on the dewatering holes formed in the side wall of the inner barrel. However, in this solution, when the water flow is small in the drainage stage, there may be thread scraps left on the dewatering holes, so that the centrifugal valve cannot be completely closed, and water leakage occurs in the inner cylinder after water is re-introduced.
The present invention has been made in view of this situation.
Disclosure of Invention
The present invention is directed to overcome the disadvantages of the prior art, and provides a washing machine having an inner tub capable of independently containing washing water during washing and rinsing processes, and a control method thereof, which can determine whether water leaks from the inner tub.
In order to solve the technical problems, the invention adopts the technical scheme that:
a washing machine comprises an outer cylinder, an inner cylinder and a detection device, wherein the inner cylinder can independently contain washing water in the washing and rinsing processes, and the detection device is used for detecting the water level in the outer cylinder.
Further, the detection device is a pressure sensor arranged at the bottom of the outer barrel, and the pressure sensor judges the height of the water level in the outer barrel according to the detected water pressure;
or the detection device comprises a first probe and a second probe which are arranged at the bottom of the outer cylinder, the installation positions of the first probe and the second probe have a certain height difference, and the first probe and the second probe generate a feedback signal when being conducted.
Another objective of the present invention is to provide a control method for the above washing machine, which comprises monitoring the water level in the outer tub by a detection device during the washing process, and determining whether the inner tub leaks water according to the height of the water level in the outer tub.
Further, the washing machine monitors a water level H in the tub, the water level H and a first preset water level H1By comparison, if h>H1If so, the water leakage of the inner cylinder is judged.
Furthermore, a centrifugal drainage structure is arranged on the inner cylinder, and the centrifugal drainage structure can be opened to drain water when the inner cylinder reaches a drainage rotating speed;
the control method also comprises the step of executing a self-sealing program when the washing machine judges that the inner cylinder leaks water, wherein the self-sealing program comprises the step of controlling the inner cylinder to reach the drainage rotating speed so as to open the centrifugal drainage structure; after the washing machine executes the drainage process, the water level in the outer barrel is monitored through the detection device again, and whether the inner barrel leaks water is judged according to the height of the water level in the outer barrel.
Further, the control method also comprises the steps of executing the self-sealing program again after the execution of the self-sealing program is finished, if the water leakage of the inner cylinder is judged again, judging whether the water leakage of the inner cylinder exists again, and if the water leakage of the inner cylinder is still judged after the circulation is carried out for N times, alarming by the washing machine.
Further, the control method further comprises the step of supplementing water to the set water level and then continuing washing if the inner barrel is judged not to leak water again after the execution of the self-sealing program is finished.
Further, the control method also comprises the steps of opening a drainage device for communicating the outer cylinder with the outside of the washing machine to drain water when the washing machine judges that the inner cylinder leaks water; after the execution of the self-sealing program is finished, the water level H in the outer cylinder is monitored and is matched with a second preset water level H2By comparison, when h<H2When the water is discharged, the drainage device is closed; wherein the second preset water level H2Is set to satisfy H2<H1。
Further, the control method further comprises the steps that after the execution of the self-sealing program is finished, the washing machine judges whether the water level in the inner barrel is lower than the water leakage detection water level or not, if the judgment result is negative, whether the inner barrel leaks water or not is judged again, if the judgment result is positive, water is supplemented to the water leakage detection water level, and then whether the inner barrel leaks water or not is judged again.
Furthermore, the washing machine monitors the water level in the outer cylinder in the water inlet process, and controls the water inlet valve to be closed and executes a self-sealing program when the water leakage of the inner cylinder is judged; and after the self-sealing program is finished, opening the water inlet valve, continuously feeding water to a set water level, and executing a subsequent washing program.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The inner barrel of the washing machine independently holds washing water in the washing and rinsing processes, and the detection device is arranged to detect the water level in the outer barrel, so that whether the inner barrel leaks water or not can be judged, and the influence of the water leakage of the inner barrel on the washing of clothes is avoided.
According to the control method, when the inner barrel leaks water, the centrifugal drainage structure can be opened by controlling the inner barrel to rotate, drainage washing is carried out, and the water leakage condition is judged again, so that the water leakage problem is automatically eliminated, and the washing effect of clothes is ensured.
According to the control method, after the self-sealing program is executed for multiple times, if the water leakage fault is not eliminated, an alarm is given to remind a user of carrying out manual inspection, and resource waste caused by continuous water leakage is avoided.
The control method of the invention monitors the water level height in the outer cylinder to judge water leakage in the water inlet stage of the washing machine, stops water inlet when the water leakage condition occurs, automatically eliminates faults, and then continues water inlet, thereby avoiding resource waste.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view showing a structure of a washing machine according to the present invention;
FIG. 2 is an enlarged schematic view of the invention at A in FIG. 1;
fig. 3 is a schematic structural diagram of a third embodiment of the present invention.
In the figure: 1. an outer cylinder; 2. an inner barrel; 3. lifting the ribs; 4. a drainage device; 5. an inner cylinder door; 6. a water inlet hole; 7. a drive shaft; 8. dynamic sealing; 9. a water inlet pipe; 10. a bearing; 11. a first probe; 12. a second probe; 21. an air chamber; 22. a transfer tube; 23. a pressure sensor.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the washing machine of the present invention comprises an outer tub 1, an inner tub 2 having a non-porous structure, and an inner tub door 5, wherein the inner tub door 5 is openably/closably installed at a tub opening of the inner tub 2, forms an independent washing chamber with the inner tub 2 when closed, and can independently contain washing water during washing and rinsing stages. The washing machine does not need to fill washing/rinsing water between the inner cylinder and the outer cylinder when in work, greatly reduces the water consumption of the washing machine, avoids the possibility of dirt adhesion between the inner cylinder and the outer cylinder, improves the health and user experience of users, and saves water resources.
The outer cylinder 1 has a central mounting hole in which a bearing 10 is fixedly mounted, and a transmission shaft 7 fixedly coupled with the inner cylinder 2 passes through the bearing 10 and is connected to a driving motor. The transmission shaft 7 is provided with a hollow water inlet hole 6, the water inlet hole 6 is communicated with a water inlet pipe 9, a dynamic seal 8 is arranged between the water inlet hole 6 and the water inlet pipe, and the water inlet function of the inner cylinder 2 with a non-porous structure is realized.
Install on the inner tube 2 lateral wall and promote muscle 3, it has the hole to open on promoting muscle 3's the shell, promotes the inside internal integration of muscle and sets up centrifugal drainage structure, and centrifugal drainage structure's initial condition is the closed state, keeps inner tube 2 to seal and independently holds the washing water, and centrifugal drainage structure can open under the centrifugal force effect, has realized the drainage function of the inner tube 2 of sclausura structure. Preferably, the centrifugal drainage structure comprises a sealing plunger capable of reciprocating and an elastic piece for elastically restoring the sealing plunger, wherein the sealing plunger can reciprocate to open or close the drainage hole on the side wall of the inner barrel 2; the sealing plunger is connected with a balancing weight through a lever, when the inner barrel 2 reaches the drainage rotating speed, the balancing weight moves towards the direction far away from the axis of the inner barrel 2 under the action of centrifugal force to drive the sealing plunger to move towards the direction close to the axis of the inner barrel 2 to open the drain hole, when the rotating speed of the inner barrel 2 is low or does not rotate, the elastic part pushes the sealing plunger to move towards the direction far away from the axis of the inner barrel 2 to close the drain hole, and the sealing of the inner barrel 2.
Example one
As shown in fig. 1 and 2, the washing machine according to the present embodiment includes an outer tub 1, an inner tub 2 having a non-porous structure, and an inner tub door 5, wherein the inner tub door 5 is openably/closably installed at a tub opening of the inner tub 2, forms a separate washing chamber with the inner tub 2 when closed, and can separately contain washing water during washing and rinsing stages. The transmission shaft 7 connected with the inner cylinder 2 is provided with a hollow water inlet hole 6 and communicated with a water inlet pipe 9, so that the water inlet function of the inner cylinder 2 is realized. Install on the inner tube 2 lateral wall and promote muscle 3, it has the hole to open on promoting muscle 3's the shell, promotes the inside integrated centrifugal drainage structure that sets up of muscle, and its initial condition is the closed state, can open the wash port on the inner tube 2 when inner tube 2 reaches the drainage rotational speed and realize the drainage function.
The washing machine of the embodiment further comprises a detection device for detecting the height of the water level in the outer tub 1, and the detection device comprises a first probe 11 and a second probe 12 which are installed at the bottom of the outer tub 1, and the installation positions of the first probe 11 and the second probe 12 have a certain height difference.
In this embodiment, by providing the first probe 11 and the second probe 12 at different heights at the bottom of the outer tub, the first probe 11 located below contacts with the washing water first and the second probe 12 located higher contacts with the washing water later as the water level in the outer tub 1 rises. When no washing water or only a small amount of washing water is in the outer cylinder 1, the second probe 12 is not in contact with the washing water, and the first probe 11 and the second probe 12 are not conducted; when the water level in the outer tub 1 reaches a certain height, the first probe 11 and the second probe 12 are both in contact with the washing water, and are conducted with each other to generate a feedback signal, thereby performing a corresponding operation.
The inner cylinder of the washing machine in the embodiment independently holds washing water in the washing and rinsing stages, under the normal condition, the inner cylinder and the outer cylinder are in a water-free state, and if abnormal water level occurs in the outer cylinder, the water leakage condition of the inner cylinder is indicated. This embodiment reminds user's urceolus abnormal water level to appear when the water level reaches the take the altitude in the urceolus through setting up first probe and second probe, need inspect, has avoided the inner tube to leak and has caused the influence to the clothing washing.
Example two
The present embodiment is different from the first embodiment in that: the detection device is a pressure sensor arranged at the bottom of the outer barrel. The pressure sensor can detect the surrounding water pressure, further obtain the water level height in the outer barrel through the water pressure, and when the water level height reaches a certain value, the water leakage of the inner barrel is judged and a signal is sent out, so that the washing machine is controlled to execute corresponding operation.
In the embodiment, the pressure sensor is arranged at the bottom of the outer barrel, and the water pressure monitored by the pressure sensor is used for acquiring the water level height in the outer barrel in real time, so that the water leakage condition of the inner barrel is judged, a user is timely reminded, and the influence of water leakage of the inner barrel on the washing effect is avoided.
EXAMPLE III
As shown in fig. 3, the present embodiment is different from the first embodiment in that: the detection device comprises an air chamber 21 arranged on a communication pipeline between the bottom of the outer cylinder 1 and the drainage device 4, and the air chamber 21 is connected with a pressure sensor 23 arranged at the upper part of the machine body through a transfer pipe 22.
In this embodiment, through setting up air chamber and pressure sensor, monitor the pressure of air chamber position, and then can obtain the water level height in the urceolus, carry out the inner tube and leak the judgement to carry out self sealss procedure when the condition that inner tube leaked takes place and carry out the automation to the trouble of leaking and get rid of, avoided the inner tube to leak and led to the fact the influence to the laundry effect.
Example four
The present embodiment is the control method of the washing machine according to any one of the first to third embodiments, including monitoring the water level in the outer tub 1 by a detection device during the washing process, and determining whether the inner tub 2 leaks water according to the water level of the outer tub 1.
As a preferred embodiment of this embodiment, the detecting device monitors the water level H in the outer tub 1 and the first preset water level H1By comparison, if h>H1If so, the water leakage of the inner cylinder is judged.
When the condition that the inner cylinder 2 leaks water is judged to occur, a self-sealing program can be further executed for troubleshooting, wherein the self-sealing program comprises the step of controlling the inner cylinder 2 to reach the drainage rotating speed so as to start the centrifugal drainage structure; after the washing machine executes the drainage process, the water level in the outer barrel 1 is monitored through the detection device again, and whether the inner barrel 2 leaks water or not is judged according to the height of the water level in the outer barrel 1.
In a preferred embodiment of the present invention, the self-sealing program is executed again if the washing machine determines that the inner tub 2 leaks water again after the self-sealing program is executed, whether the inner tub 2 leaks water is determined again after the self-sealing program is ended, and if the cycle is repeated N times, the washing machine stops operating and gives an alarm.
In another preferred embodiment of this embodiment, if the washing machine determines that the inner tub 2 does not leak water again after the self-sealing procedure is performed, the washing machine is controlled to continue to perform the interrupted washing process after the water is replenished to the set water level.
In the embodiment, the washing machine judges the water leakage of the inner barrel by monitoring the water level height in the outer barrel, can find the water leakage condition of the inner barrel in time, and avoids the influence of the water leakage of the inner barrel on the washing process. When the water leakage condition of the inner barrel of the washing machine occurs, the centrifugal drainage structure is opened by controlling the inner barrel to rotate at the drainage rotating speed, drainage is carried out to wash the drainage hole, and stuck threads and the like are washed away, so that the centrifugal drainage structure can be sealed and closed again, and the water leakage fault can be automatically eliminated. After the operation is finished, judging the water leakage condition again, if the inner cylinder does not leak water any more, confirming fault elimination and continuing washing; if the inner cylinder still leaks water, the centrifugal drainage structure is opened and closed again for fault removal, and if the inner cylinder still leaks water after multiple cycles, an alarm signal is sent to remind a user of manual inspection, so that the problem that the washing of the clothes is influenced and the waste of resources is caused due to continuous water leakage is avoided.
EXAMPLE five
In this embodiment, as a further limitation of the fourth embodiment, the control method further includes opening a drainage device 4 for communicating the outer cylinder 1 and the outside of the machine body to drain water when the washing machine determines that the inner cylinder 2 leaks water; after the execution of the self-sealing program is finished, the water level H in the outer barrel 1 is monitored and is matched with a second preset water level H2By comparison, when h<H2When so, the drainage device 4 is closed; wherein the second preset water level H2Is set to satisfy H2<H1。
In this embodiment, when the washing machine determines that the inner cylinder leaks water, the drainage device is opened to drain the outer cylinder, and the second preset water level lower than the first preset water level is set to control the drainage device to be closed, so that the water level in the outer cylinder is within a normal range before the water leakage determination is performed again, and the problem that the water level of the outer cylinder rises and is not eliminated when the self-sealing program is executed or the water leakage of the inner cylinder in the washing machine is caused to cause misdetermination is avoided.
EXAMPLE six
In this embodiment, as a further limitation of the fourth embodiment, the control method further includes after the execution of the self-sealing program is finished, determining whether the water level in the inner cylinder 2 is lower than the water leakage detection water level by the washing machine, if the determination result is no, determining whether the inner cylinder 2 leaks water again, if the determination result is yes, performing water supply to the water leakage detection water level, and then determining whether the inner cylinder 2 leaks water again.
When the control method of the invention judges the water leakage, the quantity of the washing water in the inner cylinder has a critical value, when the quantity of the washing water in the inner cylinder is less than the critical value, even if the water leakage condition occurs, the water level in the outer cylinder can not reach the first preset water level, thereby triggering the water leakage judgment and executing the corresponding program. In this embodiment, a water leakage detection level is set, and when the water level in the inner tub reaches the water leakage detection level, the amount of the washing water in the inner tub exceeds the critical value, which is enough to make the water level in the outer tub reach a first preset water level when a water leakage condition occurs, thereby triggering water leakage determination. In the self-sealing procedure, the washing machine controls the inner cylinder to rotate to open the centrifugal drainage structure, so that part of washing water in the inner cylinder is drained, the residual washing water in the inner cylinder is possibly less than the critical value, and water leakage judgment cannot be triggered. In the embodiment, the water level in the inner barrel is detected after the self-sealing program is finished, water is supplemented to the water leakage detection water level when the water level is lower than the water leakage detection water level, and then water leakage judgment is carried out, so that the misjudgment of the water leakage condition of the inner barrel caused by too little washing water in the inner barrel is avoided.
EXAMPLE seven
In this embodiment, the fourth embodiment is further defined in that the washing machine monitors the water level in the outer cylinder 1 during the water inlet process, and controls the water inlet valve to close and execute a self-sealing program when it is determined that the inner cylinder 2 leaks water; and after the self-sealing program is finished, opening the water inlet valve, continuously feeding water to a set water level, and executing a subsequent washing program.
In the embodiment, the water level height in the outer barrel is monitored in the water inlet stage of the washing machine to judge water leakage, water inlet is stopped when the water leakage condition occurs, fault elimination is automatically carried out, and then water inlet is continued, so that waste of resources is avoided.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A washing machine characterized by: comprises an outer cylinder, an inner cylinder which can independently contain washing water in the washing and rinsing processes, and a detection device for detecting the water level in the outer cylinder.
2. The washing machine as claimed in claim 1, wherein: the detection device is a pressure sensor arranged at the bottom of the outer barrel, and the pressure sensor judges the height of the water level in the outer barrel according to the detected water pressure;
or the detection device comprises a first probe and a second probe which are arranged at the bottom of the outer cylinder, the installation positions of the first probe and the second probe have a certain height difference, and the first probe and the second probe generate a feedback signal when being conducted.
3. A control method of a washing machine according to claim 1 or 2, characterized in that: the method comprises the steps of monitoring the water level in the outer barrel through a detection device in the washing process, and judging whether the inner barrel leaks water or not according to the height of the water level in the outer barrel.
4. The control method according to claim 3, characterized in that: the washing machine monitors a water level H in the tub, the water level H and a first preset water level H1By comparison, if h>H1If so, the water leakage of the inner cylinder is judged.
5. The control method according to claim 4, characterized in that: the inner barrel is provided with a centrifugal drainage structure which can be opened for drainage when the inner barrel reaches a drainage rotating speed;
the control method also comprises the step of executing a self-sealing program when the washing machine judges that the inner cylinder leaks water, wherein the self-sealing program comprises the step of controlling the inner cylinder to reach the drainage rotating speed so as to open the centrifugal drainage structure; after the washing machine executes the drainage process, the water level in the outer barrel is monitored through the detection device again, and whether the inner barrel leaks water is judged according to the height of the water level in the outer barrel.
6. The control method according to claim 5, characterized in that: and after the execution of the self-sealing program is finished, if the water leakage of the inner barrel is judged again, the self-sealing program is executed again, whether the water leakage of the inner barrel exists is judged again, and if the water leakage of the inner barrel is still judged after the circulation for N times, the washing machine gives an alarm.
7. The control method according to claim 5, characterized in that: and after the execution of the self-sealing program is finished, if the inner barrel is judged to not leak water again, water is supplemented to the set water level and then washing is continued.
8. The control method according to claim 5, characterized in that: the control method also comprises the steps of opening a drainage device for communicating the outer cylinder with the outside of the washing machine to drain water when the washing machine judges that the inner cylinder leaks water; after the execution of the self-sealing program is finished, the water level H in the outer cylinder is monitored and is matched with a second preset water level H2By comparison, when h<H2When the water is discharged, the drainage device is closed; wherein the second preset water level H2Is set to satisfy H2<H1。
9. The control method according to claim 5, characterized in that: the control method also comprises the steps that after the execution of the self-sealing program is finished, the washing machine judges whether the water level in the inner barrel is lower than the water leakage detection water level or not, if the judgment result is negative, whether the inner barrel leaks water or not is judged again, if the judgment result is positive, water is supplemented to the water leakage detection water level, and then whether the inner barrel leaks water or not is judged again.
10. The control method according to claim 5, characterized in that: the washing machine monitors the water level in the outer cylinder in the water inlet process, and controls the water inlet valve to be closed and executes a self-sealing program when the water leakage of the inner cylinder is judged; and after the self-sealing program is finished, opening the water inlet valve, continuously feeding water to a set water level, and executing a subsequent washing program.
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| CN202010030626.2A CN113106692B (en) | 2020-01-13 | 2020-01-13 | Washing machine and control method thereof |
| JP2022542399A JP2023517798A (en) | 2020-01-13 | 2021-01-07 | Washing machine and its control method |
| PCT/CN2021/070571 WO2021143606A1 (en) | 2020-01-13 | 2021-01-07 | Washing machine and control method therefor |
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| CN202010030626.2A CN113106692B (en) | 2020-01-13 | 2020-01-13 | Washing machine and control method thereof |
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| CN113106692B CN113106692B (en) | 2023-05-23 |
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| JP (1) | JP2023517798A (en) |
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| JPH10295981A (en) * | 1997-04-23 | 1998-11-10 | Matsushita Electric Ind Co Ltd | Washing machine |
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2020
- 2020-01-13 CN CN202010030626.2A patent/CN113106692B/en active Active
-
2021
- 2021-01-07 WO PCT/CN2021/070571 patent/WO2021143606A1/en active Application Filing
- 2021-01-07 JP JP2022542399A patent/JP2023517798A/en active Pending
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| JPS5796689A (en) * | 1980-12-03 | 1982-06-16 | Sharp Kk | Full automatic washing machine |
| JPH08173685A (en) * | 1994-12-22 | 1996-07-09 | Sanyo Electric Co Ltd | Drum-type washing machine |
| CN103898716A (en) * | 2012-12-27 | 2014-07-02 | 海尔集团公司 | Washer leakage judgment method and washer thereof |
| CN204298645U (en) * | 2014-11-05 | 2015-04-29 | 青岛海尔洗衣机有限公司 | A kind of automatic washing machine |
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| Publication number | Publication date |
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| WO2021143606A1 (en) | 2021-07-22 |
| CN113106692B (en) | 2023-05-23 |
| JP2023517798A (en) | 2023-04-27 |
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Effective date of registration: 20230424 Address after: Room 221, Sino German Ecological Park Management Committee, No. 2877, Tuanjie Road, Huangdao District, Qingdao, Shandong 266500 Applicant after: QINGDAO HAIER WASHING ELECTRIC APPLIANCES Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. Applicant before: Haier Smart Home Co., Ltd. |
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