CN116065338A - Clothes treatment equipment and drainage control method thereof - Google Patents
Clothes treatment equipment and drainage control method thereof Download PDFInfo
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- CN116065338A CN116065338A CN202111299799.5A CN202111299799A CN116065338A CN 116065338 A CN116065338 A CN 116065338A CN 202111299799 A CN202111299799 A CN 202111299799A CN 116065338 A CN116065338 A CN 116065338A
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 239000006260 foam Substances 0.000 claims abstract description 171
- 238000005406 washing Methods 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 95
- 206010001497 Agitation Diseases 0.000 claims description 58
- 238000013019 agitation Methods 0.000 claims description 52
- 238000001514 detection method Methods 0.000 claims description 35
- 208000005156 Dehydration Diseases 0.000 claims description 10
- 230000018044 dehydration Effects 0.000 claims description 10
- 238000006297 dehydration reaction Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 description 27
- 239000003599 detergent Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 230000004927 fusion Effects 0.000 description 7
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000008237 rinsing water Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring 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
- 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
- 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
- D06F2103/20—Washing liquid condition, e.g. turbidity
-
- 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
- D06F2103/68—Operation mode; Program phase
-
- 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
- D06F2105/48—Drum speed
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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)
Abstract
The invention belongs to the technical field of household appliances, and particularly discloses clothes treatment equipment and a drainage control method thereof, wherein the method comprises the following steps: in the clothes treatment process, according to different clothes treatment stages, different drainage modes are selected to inhibit foam generation in the drainage process; a laundry treating apparatus includes a drain control method for implementing a laundry treating apparatus as described above. According to the invention, in the clothes treatment process, different drainage modes are adopted according to different clothes treatment stages, so that the risk of foam overflow caused by foam generated by the high-speed rotary drum can be avoided while the bottom of the washing drum is not influenced; the clothes treatment equipment provided by the invention can fundamentally inhibit foam generation without adding any defoaming and anti-overflow device by adopting the method, and the foam is eliminated after the foam is generated, so that the defoaming method is simpler and more efficient and has low cost.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to clothes treatment equipment and a drainage control method thereof.
Background
The impeller washing machine in the prior art is easy to produce dirt at the bottom of the barrel, the bottom of the barrel is cleaned by arranging cleaning particles between the inner barrel and the outer barrel, and in the drainage process, the effective dirt-free effect of the bottom wall of the inner barrel is realized by adopting a high-speed barrel rotating mode when a small amount of water is reserved in the barrel, but when a user adds more detergent or adopts a high-foam washing reagent, a large amount of foam can be produced between the inner barrel and the outer barrel by adopting the operation of the high-speed barrel rotating mode, so that the foam overflows or overflows when the next rinsing water enters, and bad user experience is brought.
The Chinese patent with the application number of CN201611116650.8 discloses a foam detection and elimination method of a washing machine, wherein in the dehydration process of the washing machine, the method detects the information of water level pressure in the acceleration process of a drum of the washing machine, and executes an elimination program according to the information of the water level pressure; the elimination procedure comprises controlling the opening/closing of the spray valve and/or the opening/closing of the drain pump and/or the rotation speed of the roller; s1, a dehydration process, wherein a roller rotates at a first set speed; s2, detecting information of water level pressure in a drum of the washing machine, judging whether the information of the water level pressure reaches a preset value, if so, controlling the drum to rotate at a second set speed, starting a spray valve and a drainage pump, and then executing the step S1; if not, executing step S3; and S3, controlling the roller to rotate at a third set speed.
The above patent executes the foam elimination procedure according to the water level pressure information, and the foam elimination procedure is carried out only in the dehydration process of the washing machine, and eliminates the foam by combining the spray valve and the rotation speed of the drum with the lower rotation speed in relative dehydration, and eliminates the foam only in the dehydration process.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to solve the technical problems that foam is generated by a high-speed rotary drum Shi Yi in the draining and dehydrating process of clothes treatment equipment in the prior art, so that the foam overflows and the user experience is affected.
In order to solve the above technical problems, a first aspect of the present application discloses a drainage control method of a laundry treatment apparatus, including selecting different drainage modes according to different laundry treatment stages during a laundry treatment process to suppress generation of foam during the drainage process.
Through the design, the clothes treatment equipment cleans the bottom of the inner cylinder by the high-speed rotary drum in the draining and dewatering process, so that foam overflow is avoided, and user experience is affected; the foam generation is fundamentally inhibited, the foam is not eliminated after the foam is generated, and the defoaming method is simpler and more efficient.
Further, the laundry treatment stage includes a washing stage, a rinsing stage, and a final dehydrating stage;
the laundry treating apparatus is controlled to drain water in different drainage modes in washing stage drainage, rinsing stage drainage, and final dehydration stage drainage to suppress generation of foam during the drainage.
Through the design, different drainage modes can be selected in the washing stage, the rinsing stage and the final dewatering stage, the drainage process of each stage is fully utilized, and the high-speed rotary drum is prevented from generating foam while the drum bottom is cleaned, so that the risk of foam overflow is avoided.
Further, according to the laundry treatment stage, different drainage modes are selected, including:
judging whether the water is drained in the washing stage, and if the water is drained in the washing stage, selecting a common drainage mode; if the washing stage is not water-draining, selecting an agitation water-draining mode;
preferably, the non-wash stage drain includes a rinse stage drain and a final spin stage drain, the rinse stage drain and/or the final spin stage drain selecting an agitation drain mode;
preferably, the rinsing stage drain includes a first rinsing step drain and a second rinsing step drain, the first rinsing step drain selecting a normal drain mode and the second rinsing step drain selecting an agitation drain mode.
Through the design, the water drainage in the washing stage adopts the common water drainage mode, more foam is generated in the common washing stage, and the risk of foam overflow caused by the increase of foam by adopting the agitation water drainage is avoided by adopting the common water drainage mode; in the rinsing stage, particularly in the second rinsing, the foam quantity is generally smaller in the second rinsing by using the agitation drainage mode, foam is not increased by using the agitation drainage at the moment, foam overflows, and the purpose of cleaning the bottom of the barrel can be achieved.
Further, the method also comprises the following steps:
foam detection is performed on the laundry treating apparatus before draining, and a draining mode is selectively adjusted according to the detection result.
Through the design, in order to more accurately select the drainage mode, the foam detection is carried out before drainage, the drainage mode is adjusted according to the foam detection amount, and the effects of cleaning the bottom of the barrel and inhibiting foam generation are improved.
Further, the selectively adjusting the drainage mode according to the detection result includes:
if the detected foam amount in the clothes treatment equipment reaches or exceeds a preset threshold value, selecting a common drainage mode;
and if the detected foam amount in the clothes treatment equipment is smaller than the preset threshold value, selecting an agitation drainage mode.
Through the design, if the foam quantity reaches or exceeds the preset threshold value, the foam quantity is more, and if the shock drainage mode is used again, the foam is increased, and the risk of foam overflow exists, so that at the moment, the common drainage mode is selected, the foam generation is effectively inhibited, and the foam overflow is prevented; on the contrary, when the foam is in a controllable range, the foam is selected to be in an agitation drainage mode, the foam amount is not increased while the bottom of the barrel is cleaned, and the agitation drainage mode is beneficial to the fusion of the foam and water.
Further, prior to draining during the washing phase, foam detection is performed on the laundry treatment apparatus:
if the detected foam amount in the clothes treatment equipment is smaller than a preset threshold value, controlling the water discharge in the washing stage to select an agitation water discharge mode;
and if the detected foam amount in the clothes treatment equipment reaches or exceeds the preset threshold value, controlling the washing stage to drain water and selecting a common drainage mode.
Through the design, a foam detection link is added in the washing stage, so that the accuracy of a drainage mode in the washing stage can be improved, and the cleaning or anti-overflow foam effect of the cylinder bottom can be improved.
Further, if the detected foam amount in the clothes treatment equipment is smaller than the preset threshold value, controlling the washing stage drainage to select the agitation drainage mode and controlling the rinsing stage drainage to select the agitation drainage mode;
if the foam amount in the clothes treatment equipment is detected to reach or exceed a preset threshold value, controlling the washing stage drainage to select a common drainage mode, controlling the rinsing stage drainage to select an agitation drainage mode, and increasing the duration and/or the times of the agitation drainage mode;
preferably, the duration of the increased agitation drainage mode is 30 s-2 min, and the number of times of the increased agitation drainage mode is 1-3.
Through the design, before the washing stage is drained, if the foam amount in the clothes treatment equipment is detected to reach or exceed the preset threshold value, the washing stage is drained into a common drainage mode, and a large amount of foam is drained out of the clothes treatment equipment, so that the residual foam and water can be fully fused by increasing the duration and/or the times of the agitation drainage mode in the rinsing stage, the defoaming effect is achieved, and the cleaning degree of the drum bottom is improved.
Further, the agitation drainage mode is to control the inner cylinder to rotate at a high rotation speed greater than the washing rotation speed when the water level reaches a preset water level;
preferably, the inner cylinder rotation speed of the surge drainage mode is 40-200rpm.
Through the design, firstly, foam and water can be accelerated to fuse, secondly, the purpose of cleaning the bottom of the cylinder can be achieved, when the foam content is low, the foam quantity cannot be increased in the agitation drainage mode, and the foam and water are fused, foam generation is restrained, and the purpose of defoaming is achieved.
Further, the ordinary drainage mode is that the inner cylinder is static or rotates at a low speed;
preferably, the low speed is 0-100rpm.
Through the design, the common drainage water can not stir the detergent water greatly and can not generate foam; when the inner cylinder rotates at a low speed, the bottom of the inner cylinder can be cleaned.
In a second aspect of the present application, there is also provided a laundry treatment apparatus for implementing a drain control method of the laundry treatment apparatus as described above.
Through the design, the invention provides the clothes treatment equipment for realizing the anti-overflow foam drainage control method, which has the advantages that the structure is simple, the devices such as defoaming or anti-overflow foam are not needed to be added, the cost is low, the bottom of the inner cylinder can be cleaned when the drum is rotated at a high speed only by adjusting the inner cylinder drainage mode, foam generation can be prevented, and the defoaming method is simpler and more efficient.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects.
1. According to the invention, different water draining modes are selected for different clothes treatment stages, so that compared with the prior art, the drum bottom can be cleaned by utilizing the high-speed rotary drum, foam generation can be prevented, foam overflow is avoided, and user experience is improved.
2. According to the invention, through foam detection, the accurate selection of a drainage mode is improved, and the effects of preventing foam overflow and cleaning the bottom of the cylinder are improved.
3. The invention adopts a common drainage mode aiming at washing stage drainage, can also detect foam by adding, can adopt agitation drainage without increasing foam amount if the foam content in the washing stage is detected to be smaller than a preset threshold value, can clean the barrel bottom, and can improve the cleaning degree of the barrel bottom by cleaning the barrel bottom for a plurality of times.
The following describes the 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 and 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. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
fig. 1 is a flow chart schematically showing a drain control method of a laundry treating apparatus according to the present invention;
FIG. 2 is a schematic flow diagram of the drainage control method of FIG. 1 using foam detection;
FIG. 3 is a schematic flow chart of a method for controlling the drainage in the washing stage of the invention;
FIG. 4 is a schematic flow diagram of a drain control method employing foam detection in the wash stage of FIG. 3;
fig. 5 is a schematic view showing the construction of a laundry treating apparatus according to the present invention.
In the figure: 1. an outer cylinder; 2. an inner cylinder; 3. cleaning the particles; 4. a turbidity sensor; 5. and (3) a drainage valve.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The present invention will be described in further detail with reference to examples.
As shown in fig. 1 to 4, a drainage control method of a laundry treatment apparatus according to the present invention includes selecting different drainage modes according to different laundry treatment stages during laundry treatment to suppress generation of foam during drainage.
The invention is based on the prior art that the cleaning particles 3 are arranged between the inner cylinder and the outer cylinder, and in the drainage process, when the bottom wall of the inner cylinder 2 is cleaned by adopting the high-speed rotary drum, a large amount of foam is easily generated due to the addition of more detergent or the adoption of high-foam detergent, and the risk of foam overflow or overflow in the next rinsing water inlet exists, so that different drainage modes are selected according to different stages of clothes treatment, and the problems of cleaning the bottom of the cylinder and preventing foam overflow caused by the generation of a large amount of foam by the high-speed rotary drum are solved, as shown in figure 1. The invention effectively avoids the problem that a large amount of foam is generated due to the high-speed rotating drum, and can effectively inhibit the generation of foam under the condition of not adding other anti-overflow foam devices by adjusting the drainage mode, thereby achieving the purpose of anti-overflow foam, and the defoaming method is simple and efficient and has low cost.
Further, the laundry treatment stage includes a washing stage, a rinsing stage, and a final dehydrating stage;
the laundry treating apparatus is controlled to drain water in different drainage modes in washing stage drainage, rinsing stage drainage, and final dehydration stage drainage to suppress generation of foam during the drainage.
The general clothes treatment equipment has a plurality of clothes treatment stages, and the water discharge is carried out in the clothes treatment stages related to water inflow.
Further, as shown in fig. 3, according to the laundry treatment stage, different drainage modes are selected, including:
judging whether the water is drained in the washing stage, and if the water is drained in the washing stage, selecting a common drainage mode; if the washing stage is not water-draining, selecting an agitation water-draining mode;
preferably, the non-wash stage drain includes a rinse stage drain and a final spin stage drain, the rinse stage drain and/or the final spin stage drain selecting an agitation drain mode;
preferably, the rinsing stage drain includes a first rinsing step drain and a second rinsing step drain, the first rinsing step drain selecting a normal drain mode and the second rinsing step drain selecting an agitation drain mode.
The invention starts to adjust the drainage mode in the washing stage to achieve the aim of inhibiting the generation of foam, and a large amount of foam can be generated in the general washing stage, so that the washing stage can directly select the common drainage mode, the common drainage mode can not be used for rotating the drum at a high speed, the generation of foam is effectively inhibited, and the purpose of preventing the overflow of foam is achieved. Most clothes treatment equipment is further provided with a rinsing stage and a final dewatering stage, in general, the rinsing stage has the advantages that most high-concentration washing water is discharged in the washing stage, residual detergent is diluted by water flow during rinsing, the concentration of the detergent is greatly reduced, foam is not easy to generate any more, washing liquid remained on clothes is further diluted during the second rinsing step, the possibility of foam generation is further reduced, the fusion of foam and water can be accelerated through an agitation drainage mode, the defoaming effect is achieved, and the aim of cleaning the bottom of a drum can be achieved by combining cleaning particles 3. For the situation that the foam content is very high, the water is drained in the rinsing stage, a common water draining mode is selected, the water is drained in the final dewatering stage, and an agitation water draining mode is selected, so that the situation that foam is generated in the water draining in the rinsing stage is avoided.
Further, as shown in fig. 2, the method further comprises the following steps:
foam detection is performed on the laundry treating apparatus before draining, and a draining mode is selectively adjusted according to the detection result.
According to the invention, foam detection is carried out on the clothes treatment equipment before draining, the foam detection is not limited to the foam detection before draining in a washing stage, the foam detection can be carried out on the clothes treatment equipment before draining in a rinsing stage and a final dewatering stage, and a draining mode is selected according to a foam detection result, so that different draining modes can be adopted in different clothes treatment stages more flexibly, and the effects of preventing foam overflow and cleaning the bottom of a drum are improved.
Further, the selectively adjusting the drainage mode according to the detection result includes:
if the detected foam amount in the clothes treatment equipment reaches or exceeds a preset threshold value, selecting a common drainage mode;
and if the detected foam amount in the clothes treatment equipment is smaller than the preset threshold value, selecting an agitation drainage mode.
If the detected foam quantity reaches or exceeds a preset threshold value, the foam quantity is more, and a common drainage mode is adopted to avoid increasing the foam; if the detected foam quantity is smaller than the preset threshold value, the foam quantity is smaller, at the moment, foam cannot be increased by adopting an agitating drainage mode, the purpose of cleaning the bottom of the barrel can be achieved, at the moment, the agitating drainage can accelerate the fusion of the foam and water, and the defoaming effect is achieved.
Further, as shown in fig. 4, the foam detection is performed on the laundry treating apparatus before the water is discharged in the washing stage:
if the detected foam amount in the clothes treatment equipment is smaller than a preset threshold value, controlling the water discharge in the washing stage to select an agitation water discharge mode;
and if the detected foam amount in the clothes treatment equipment reaches or exceeds the preset threshold value, controlling the washing stage to drain water and selecting a common drainage mode.
According to the invention, a foam detection link is added before the water discharge in the washing stage, so that a water discharge mode can be more accurately selected, and the bottom of the drum can be cleaned by the agitation water discharge mode in the washing stage under the conditions that less clothes are required in the washing stage or less detergent is used or foam is not easy to generate in the detergent.
Similarly, before draining in the rinsing stage, the foam detection may be performed on the laundry treatment apparatus before draining in the first rinsing step and/or the second rinsing step, and if the detected foam amount in the laundry treatment apparatus is less than the preset threshold, the draining in the rinsing stage is controlled to be adjusted to an agitation draining mode;
and if the detected foam amount in the clothes treatment equipment reaches or exceeds the preset threshold value, controlling the water drainage in the rinsing stage to be in a common water drainage mode.
Through the steps, if a large amount of detergent still remains in the rinsing stage, if foam detection is not performed in the rinsing stage, the foam is increased by adopting the agitation drainage mode, and the risk of foam overflow exists, so that the foam can be effectively inhibited from generating by adjusting the drainage mode through the foam content, and the purpose of preventing the foam overflow is achieved.
Foam detection can be performed before the final dewatering stage drainage, the detection result is as described above, foam detection is performed on the clothes treatment equipment before the final dewatering stage drainage, and if the detected foam amount in the clothes treatment equipment is smaller than the preset threshold value, the final dewatering stage drainage is controlled to be adjusted to an agitation drainage mode;
and if the detected foam amount in the clothes treatment equipment reaches or exceeds the preset threshold value, controlling the final dewatering stage to drain into a common drainage mode. Typically, the foam content is still relatively low by the final dewatering stage, and an sloshing drainage mode may be employed.
Further, if the detected foam amount in the clothes treatment equipment is smaller than the preset threshold value, controlling the washing stage drainage to select the agitation drainage mode and controlling the rinsing stage drainage to select the agitation drainage mode;
if the foam amount in the clothes treatment equipment is detected to reach or exceed a preset threshold value, controlling the washing stage drainage to select a common drainage mode, controlling the rinsing stage drainage to select an agitation drainage mode, and increasing the duration and/or the times of the agitation drainage mode;
preferably, the time length of the increased agitation drainage mode is 30 s-2 min, and the times of the increased agitation drainage mode is 1-3 times.
In the invention, if the foam amount in the clothes treatment equipment is smaller than the preset threshold value, the washing stage drainage and the rinsing stage drainage can both select the agitation drainage mode, and new foam can not be generated by adopting the agitation drainage because the foam amount is smaller, and the purpose of cleaning the bottom of the drum can be achieved.
If the foam amount in the clothes treatment equipment reaches or exceeds a preset threshold value, the drainage in the washing stage adopts a common drainage mode to drain a large amount of washing water, residual foam is limited, and the concentration of the residual detergent is further reduced through the dilution of the water flow in the rinsing stage, so that the purpose of accelerating the fusion of the residual foam and the water can be achieved by increasing the agitation drainage time length and/or the times in the rinsing stage, and the residual detergent is insufficient to generate new foam at the moment, thereby achieving the defoaming effect; the purpose of cleaning the bottom of the barrel can be achieved, and the time length of the rinsing stage can be increased by reducing the rotating speed or increasing the agitation drainage time length without changing the rotating speed.
Further, the agitation drainage mode is to control the inner cylinder to rotate at a high rotation speed greater than the washing rotation speed when the water level reaches a preset water level; at this time, the rotational speed of the inner tube 2 is lower than that at the time of dehydration.
Preferably, the inner cylinder rotation speed of the surge drainage mode is 40-200rpm.
When the agitation drainage mode is adopted, the foam content of the clothes treatment equipment is not high, so that on one hand, the agitation drainage can accelerate the fusion of foam and water, new foam can not be generated, and defoaming is realized; on the one hand, the cylinder bottom can be cleaned; the rotation speed of the inner cylinder 2 is generally higher than the washing rotation speed of the inner cylinder 2 in the agitation drainage mode and lower than the spin-drying rotation speed of the inner cylinder 2, namely the rotation speed during dehydration. The preset water level refers to the water level of the clothes treatment equipment L2, and at the moment, the lower the water level is, the larger the rotating speed of the inner cylinder 2 is, the more favorable the cleaning of the bottom of the inner cylinder 2 is. Regarding the water level setting and the rotation speed of the inner cylinder 2, the person skilled in the art can adjust according to the actual needs, and the details are not repeated here. As shown in fig. 5, the water level L1> the water level L2> the water level L3, and the water level L3 indicates that the inner tube 2 contains almost no water, and is in a state of approaching an empty tube. The water level L1 represents the water level after water intake in a general laundry treatment stage.
Specifically, the step of the flow of the surge drainage mode includes:
s1, starting drainage, and opening a drainage valve;
s2, judging whether the water level reaches a preset water level, and if the water level does not reach the preset water level, continuing draining;
if the water level reaches the preset water level, closing the drain valve 5, and controlling the inner cylinder to rotate at a high rotating speed which is higher than the washing rotating speed;
s3, judging whether the rotation time of the inner cylinder reaches the preset time, and if the rotation time of the inner cylinder does not reach the preset time, continuing the rotating cylinder; and if the preset time is reached, opening the drain valve, and continuing draining.
After the drain valve is closed, water with preset water level can be utilized to wash the bottom of the cylinder fully, so that foam and water fusion are accelerated.
The surge drainage mode also can not close the drainage valve, and the flow steps comprise:
s1, starting drainage, and opening a drainage valve;
s2, judging whether the water level reaches a preset water level, and if the water level does not reach the preset water level, continuing draining;
if the water level reaches the preset water level, the inner cylinder is controlled to rotate at a high rotating speed which is higher than the washing rotating speed;
s3, judging whether the rotation time of the inner cylinder reaches the preset time, and if the rotation time of the inner cylinder does not reach the preset time, continuing the rotating cylinder; and stopping the rotation of the inner cylinder if the preset time is reached.
The agitation drainage mode of the invention mainly consists in that the inner cylinder 2 rotates at a high rotation speed which is greater than the washing rotation speed, and the cleaning particles 3 are driven to rub against and collide with the side wall of the inner cylinder 2, so that the purpose of cleaning the side wall of the inner cylinder 2 is achieved, the purpose of accelerating the fusion of foam and water and eliminating the foam can be achieved, the drainage valve can be flexibly controlled, and the invention is not limited to a certain opening and closing mode.
Further, the normal drainage mode is that the inner cylinder 2 is stationary or rotates at a low speed;
preferably, the low speed is 0-100rpm.
The common drainage mode flow comprises:
s1, starting drainage; s2, opening a drain valve; s3, the inner cylinder is stationary or rotates at a low speed.
The inner tub 2 does not greatly agitate the detergent water in the normal drain mode of the present invention, so that a large amount of foam is not generated in the normal drain mode, and the amount of foam is not increased even if it rotates at a low speed.
The present invention provides a laundry treating apparatus, as shown in fig. 5, for implementing a method of controlling drainage of a laundry treating apparatus to prevent bubble overflow as described above. The invention does not adopt any defoaming or anti-overflow foam device, only adjusts the drainage mode of the clothes treatment stage, effectively inhibits the generation of foam under the condition of cleaning the side wall of the inner cylinder 2, saves resources and cost, has good anti-overflow foam effect, and saves cost compared with the prior art that various defoaming devices are adopted to eliminate foam after foam is generated.
The laundry treating apparatus of the present invention comprises,
the washing machine comprises an outer barrel 1, wherein a drain valve 5 capable of collecting washing particles 3 is arranged at the bottom of the outer barrel 1;
an inner cylinder 2, wherein the inner cylinder 2 is coaxially arranged in the outer cylinder 1; cleaning particles 3 for cleaning the wall of the cylinder are arranged in the space between the outer wall of the inner cylinder 2 and the inner wall of the outer cylinder 1;
during drainage, the cleaning particles 3 descend along with the water level, are finally discharged into the drainage valve 5 to be collected, and then enter the space along with the rise of the water level after water enters next time.
When the invention adopts the agitation drainage mode, the cleaning particles 3 rub against the wall of the inner cylinder and the outer cylinder 1 to achieve the purpose of cleaning the inner cylinder 2, in particular to clean the bottom wall of the inner cylinder 2.
Further, the invention also comprises a foam detection unit for detecting the foam amount in the clothes treatment equipment, wherein the foam detection unit can be a foam sensor, a detection probe, a camera, a turbidity sensor 4 and the like, and the invention can also adopt a motor rotation mode to detect whether the current exceeds a preset value or not to judge the foam amount.
Preferably, the foam detection unit is a turbidity sensor 4, the turbidity sensor 4 is arranged on the side wall of the outer cylinder 1 near the bottom, the turbidity sensor 4 can detect whether the foam is covered by the foam or not by detecting the light transmittance, and the detection condition is sent to the control unit of the clothes treatment equipment; when the turbidity sensor 4 is covered with the foam, the light transmittance value measured by the turbidity sensor 4 becomes low, and the light transmittance value can be used as a standard to determine whether the foam amount exceeds a preset threshold.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (10)
1. A drain control method of a laundry treatment apparatus, comprising:
in the clothes treatment process, different water draining modes are selected according to different clothes treatment stages so as to inhibit foam generation in the water draining process.
2. The drain control method of a laundry treatment apparatus according to claim 1, wherein the laundry treatment stage comprises a washing stage, a rinsing stage, a final dehydrating stage;
the laundry treating apparatus is controlled to drain water in different drainage modes in washing stage drainage, rinsing stage drainage, and final dehydration stage drainage to suppress generation of foam during the drainage.
3. The drain control method of a laundry treatment apparatus according to claim 1 or 2, wherein selecting different drain modes according to different laundry treatment stages comprises:
judging whether the water is drained in the washing stage, and if the water is drained in the washing stage, selecting a common drainage mode; if the washing stage is not water-draining, selecting an agitation water-draining mode;
preferably, the non-wash stage drain includes a rinse stage drain and a final spin stage drain, the rinse stage drain and/or the final spin stage drain selecting an agitation drain mode;
preferably, the rinsing stage drain includes a first rinsing step drain and a second rinsing step drain, the first rinsing step drain selecting a normal drain mode and the second rinsing step drain selecting an agitation drain mode.
4. The drain control method of a laundry treatment apparatus according to claim 1 or 2, further comprising the steps of:
foam detection is performed on the laundry treating apparatus before draining, and a draining mode is selectively adjusted according to the detection result.
5. The drain control method of a laundry treating apparatus according to claim 4, wherein the selectively adjusting the drain mode according to the detection result comprises:
if the detected foam amount in the clothes treatment equipment reaches or exceeds a preset threshold value, selecting a common drainage mode;
and if the detected foam amount in the clothes treatment equipment is smaller than the preset threshold value, selecting an agitation drainage mode.
6. A drain control method of a laundry treatment apparatus according to claim 1 or 2, wherein the laundry treatment apparatus is subjected to foam detection before draining in the washing stage:
if the detected foam amount in the clothes treatment equipment is smaller than a preset threshold value, controlling the water discharge in the washing stage to select an agitation water discharge mode;
and if the detected foam amount in the clothes treatment equipment reaches or exceeds the preset threshold value, controlling the washing stage to drain water and selecting a common drainage mode.
7. A drain control method for a clothes treating apparatus according to claim 6, wherein,
if the foam amount in the clothes treatment equipment is detected to be smaller than a preset threshold value, controlling the washing stage drainage to select an agitation drainage mode and controlling the rinsing stage drainage to select the agitation drainage mode;
if the foam amount in the clothes treatment equipment is detected to reach or exceed a preset threshold value, controlling the washing stage drainage to select a common drainage mode, controlling the rinsing stage drainage to select an agitation drainage mode, and increasing the duration and/or the times of the agitation drainage mode;
preferably, the duration of the increased agitation drainage mode is 30 s-2 min, and the number of times of the increased agitation drainage mode is 1-3.
8. The drain control method of a laundry treating apparatus according to any one of claims 3 or 5 to 7, wherein the sloshing drain mode is a mode of controlling the inner tub to rotate at a high rotation speed greater than the washing rotation speed when the water level reaches a preset water level;
preferably, the inner cylinder rotation speed of the surge drainage mode is 40-200rpm.
9. The drain control method of a laundry treating apparatus according to any one of claims 3 or 5 to 7, wherein the normal drain mode is stationary or rotating at a low speed;
preferably, the low speed is 0-100rpm.
10. A laundry treatment apparatus, characterized by being adapted to implement a drain control method of a laundry treatment apparatus according to any one of the preceding claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299799.5A CN116065338A (en) | 2021-11-04 | 2021-11-04 | Clothes treatment equipment and drainage control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299799.5A CN116065338A (en) | 2021-11-04 | 2021-11-04 | Clothes treatment equipment and drainage control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116065338A true CN116065338A (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111299799.5A Pending CN116065338A (en) | 2021-11-04 | 2021-11-04 | Clothes treatment equipment and drainage control method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN116065338A (en) |
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2021
- 2021-11-04 CN CN202111299799.5A patent/CN116065338A/en active Pending
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