CN105463791A - Washing machine circulating water filtering and block-determining processing method - Google Patents
Washing machine circulating water filtering and block-determining processing method Download PDFInfo
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- CN105463791A CN105463791A CN201410461305.2A CN201410461305A CN105463791A CN 105463791 A CN105463791 A CN 105463791A CN 201410461305 A CN201410461305 A CN 201410461305A CN 105463791 A CN105463791 A CN 105463791A
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Abstract
The invention discloses a washing machine circulating water filtering and block-determining processing method. A washing machine has a water processing module to process washing or rinsing water for repeat use during the washing; the water processing module has a water storage tank and a filter net disposed in the water storage tank; the internal space of the water storage tank is divided into a water inlet chamber and a water outlet chamber via the filter net; the water inlet chamber is provided with a detection device detecting water level; the detection device can detect a water level of the water inlet chamber and transmit a detection signal to a main control board; blocking degree of the filter net can be determined via the main control board; a work state of the water processing module or the washing machine can be controlled according to the determination result; and/or the blocking information can be transmitted to a user. The washing machine circulating water filtering and block-determining processing method is simple and filtration block can be effectively detected in time; according to various blocking degrees, different measurements are taken, so washing time can be reduced and human-machine interaction can be achieved; with various filter net block processing and timely processing, service life of the filter net can be relatively prolonged.
Description
Technical field
The present invention relates to washing machine field, specifically washing machine cycles method for treating water, especially a kind of washing machine cycles water filtration judgment of clogging processing method.
Background technology
Along with the raising of people's living standard, washing machine is one of main household electrical appliances having become people's daily life now, the laundry processes of washing machine mainly comprises washing, rinsing, dry several stage, at washing stage washing machine inflow and washing agent, clothing is washed, in order to rinse spot and residual washing agent after entering rinse stage, need into more water or perform more rinsing times rinsing is carried out to clothing, the water resource of this at substantial that is bound to, even the roller washing machine of water-saving, also rinsing at least twice is needed in order to rinse clothing, this process at least will consume the running water of more than 30L.Sometimes the washing agent that is less or that throw in of the spot on clothing is less, may twice with regard to rinsed clean, but because user have selected 3 rinsings, also certainly will can cause the waste of water resource, the basic water consumption of general twice washings of automatic washing machine of such as 6Kg is at about 100 liters.How can accomplish water and electric saving while clean clothes, be one of focus of paying close attention to of consumer always.
In order to reduce slurry, we have employed the method process washings of flocculation, and the water after process is used as rinsing.Spot in flocculant and washings and washing agent react generation floccule, and precipitation or floating, thus water and separated from contaminants are opened, reach the object of purification.During normal reaction, bottom is that clear water can directly get back to washtub for rinsing, but the water of bottom still can contain the less flco of part when reaction effect is undesirable, so still need a filter to improve the rear water quality of reaction; When reaction appearance exception, there is situation that is incomplete or flco sinking of flocculating, cause containing great quantity of floc in water, more need a filter to stop sewage to enter washtub pollution clothes.Because filter net device can adsorb soil, build up and cause blocking, affect filtering function, so need cleaning in time to ensure the normal use of filter.The scheme of filter screen is regularly cleaned in existing employing automatically, and interval is fixed life cycle or carry out cleaning after each cycle is used to complete.
Before applicant, the mode of application automatic cleaning filter screen mainly contains two kinds, and one is that filter screen is made tubbiness, being rotated, utilizing centrifugal force to get rid of being attached to online soil by driven by motor filter screen bucket.The method needs driven by motor High Rotation Speed centrifugal force to be just enough separated soil, so higher to the requirement of strength of the material of filter screen bucket, and when soil viscosity is larger, separating difficulty is larger, so very impracticable.Another mode makes tubbiness filter screen equally, by High-Pressure Water by nozzle, washes away filter screen bucket by certain angle, and while flushing, band electric filter rotates, and reaches the object of cleaning comprehensively.The hydraulic pressure source of the method mesohigh current is more difficult, and different user domestic running water pressure reduction is not very large, can not ensure cleaning performance, and it is too high to use force (forcing) pump to meet the requirements of hydraulic pressure cost, is also not suitable for widely using; In addition High-Pressure Water suppress that part soil can be made to enter filter screen bucket is inner, can not drain in time and can be deposited in bucket, even in follow-up use along with filtered water stream enters in washtub, formed and pollute.Said method is all fixed time cleaning filter screen, will cause the waste of water or electricity when cleaning too frequent; And the situation of the normal work of filter net jam impact can be there is when cleaning frequency is too low.
In view of this special proposition the present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, a kind of stopping state that can judge filter screen is in time provided, and control water treating module and washing machine according to judged result, carry out the washing machine cycles water filtration judgment of clogging processing method of filter gauze cleaning.
For solving the problems of the technologies described above, the present invention adopts the basic conception of technical scheme to be: a kind of washing machine cycles water filtration judgment of clogging processing method, this washing machine has water treating module, for the treatment of the water after washing or rinsing to reuse in washing process; This water treating module comprises water storage tank and is located at the filter screen in water storage tank, water storage tank inner space is divided into into water and water outlet two chambers by filter screen, described water inlet chamber is provided with the checkout gear of sensed water level, checkout gear detects the water level of water inlet chamber, and detection signal is passed to master control borad, judged the degree of filter net jam by master control borad, and control the duty of water treating module or washing machine according to judged result, and/or block information is passed to user.
During washing machine water process of the present invention, when current are entered into into water chamber by water inlet, the indoor current of intake antrum, through filter screen, are entered water outlet chamber, are then flowed out by delivery port.In the process of water through filter screen, the large granular impurity in water can be retained by filter screen, and part is attached on filter screen simultaneously, filter screen is gradually blocked by impurity, water declines through the speed of filter screen, when speed drops to a certain degree, will affect normally carrying out of water treatment procedure.Common, the speed of water inlet water inlet is certain, when filter net jam, the water level of intake antrum indoor will raise, filter net jam situation is more serious, then the water level of intake antrum indoor raises faster and the height reached is higher, the height of water level of water inlet chamber changes as the foundation judging filter net jam by the present invention, and controls the duty of water treating module and/or washing machine according to judged result, and/or by master control borad, block information is passed to user.
Further, the height in described water inlet Chamber is provided with gap, is connected with overflow passage, and described checkout gear is located in overflow passage, and when water inlet is overflow in overflow passage, checkout gear sends signal to master control borad, and master control borad is judged as filter net jam.
Or above-mentioned alternative is, the height in described water inlet Chamber is provided with switch, and when water level rises to setting height, the switch that float drives closes, and gives master control borad signal transmission, and master control borad is judged as filter net jam.
Further, after being judged as filter net jam, continue run this washing work, after these washers complete or next time washing start before provide filter net jam report to the police, point out user clean filter screen.
Further, intake to the time judging that filter net jam is used according to from water inlet chamber, judge filter net jam degree, setting-up time is less than when detection time, judge that filter screen severe blocks, then stop water treatment, the laggard clear water of the direct draining of washing machine completes this washing work, otherwise, be not less than setting-up time when detection time, judge that filter screen slightly blocks, then continue to run this washing work, after these washers complete, or provide filter net jam warning before starting in washing next time, prompting user cleans filter screen.
Further alternative is, is provided with the condensate tank of dehumidifier of Real-time Collection height of water level information, judges the chocking-up degree of filter screen according to the different heights of water level detected in described intake antrum indoor.
Again or, above-mentioned alternative is, arrange a perforate in the sidewall of described water inlet chamber or bottom, tapping arranges pressure-detecting device, judges the chocking-up degree of filter screen according to the different hydraulic pressure detected.
Further, described water inlet chamber is provided with a drainpipe, and drainpipe is provided with draining valve, when testing result is greater than setting value, master control borad sends signal draining valve and opens, and the water inlet of water inlet chamber is directly drained by drainpipe, the aqueous reflux reverse flushing filter screen of water outlet chamber.
Further, washing machine master control borad, according to different chocking-up degrees, makes different coping styles; And with different prompting modes prompting user chocking-up degree, preferably, prompting mode is dynamic percentage or progress or color or sound.
Further, when the result of detection is higher than H1, be judged as slight blocking, prompting user program terminates rear cleaning filter screen;
During higher than H2, be judged as that moderate blocks, prompting user program terminates rear cleaning filter screen, keeps clean prompting when next time is run, and user's manual confirmation has cleaned after filter screen could normal working procedure;
When reaching H3 height, be judged as Severe blockage, have two kinds of processing mode: a, time out program, report to the police, cleaning filter screen, continues washing, after completed washings, reports to the police, cleaning filter screen; B, interrupts existing program, proceeds to the washing procedure not with treatment function, completes this washing, after completed washings, reports to the police, cleaning filter screen; Keep cleaning to report to the police when next time is run, user's manual confirmation could normal working procedure after having cleaned filter screen.Washing procedure not with treatment function is existing Normal Wash, and each washing rinsing completes first draining, then water inlet performs next step to designated water level.
Further, when in the washing cycle, when detecting filter net jam degree jump change, carry out fault alarm, water treating module breaks down.
Further, washing machine has filter net jam automatic cleaning function, when judging that filter screen is slight and moderate blocks, do not need after EP (end of program) to point out user, directly proceed to cleaning filter screen program automatically, when being judged as Severe blockage, without warning, directly proceed to cleaning filter screen program automatically, the corresponding different chocking-up degree of cleaning filter screen program, selects varying strength and/or the filter gauze cleaning mode of time automatically.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
Structure of the present invention is simple, can detect timely and effectively and filter blocking, and judges the different chocking-up degree of filter screen, thus master control borad according to different chocking-up degree, can make different coping styles, save wash time, realize man-machine interaction, filter screen work can be controlled better; Filter net jam process variation, process can extend the service life of filter screen in time relatively.
Accompanying drawing explanation
Fig. 1 is reserve tank structure schematic diagram of the present invention;
Fig. 2 is that the embodiment of the present invention one filters blockage detector schematic diagram;
Fig. 3 is that the embodiment of the present invention two filters blockage detector schematic diagram;
Fig. 4 is that the embodiment of the present invention four filters blockage detector schematic diagram;
Fig. 5 is that the embodiment of the present invention five filters blockage detector schematic diagram;
Fig. 6 is another structural representation of water storage tank of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figures 1 to 6, washing machine of the present invention has water treating module, for the treatment of the water after washing or rinsing to reuse in washing process; The filter screen 2 that this water treating module comprises water storage tank 1 and is located in water storage tank 1, water storage tank 1 inner space is divided into into water chamber 3 and water outlet chamber 4 by filter screen 2, and water inlet chamber 3 is provided with water inlet 31, and water outlet chamber 4 is provided with delivery port 41.Described water inlet chamber 3 is provided with the checkout gear 5 of sensed water level, checkout gear 5 detects the water level of water inlet chamber 3, and detection signal is passed to master control borad, the degree that filter screen 2 blocks is judged by master control borad, and control the duty of water treating module or washing machine according to judged result, and/or block information is passed to user.
During washing machine water process of the present invention, water after the current of directly discharging after washing or one step ahead treated water stream such as flocculation treatment, when being entered into into water chamber 3 by water inlet 31, in water inlet chamber 3, current are through filter screen 2, enter water outlet chamber 4, then flowed out by delivery port 41, import to outer barrel of washing machine and recycle.In the process of water through filter screen 2, the large granular impurity in water can be retained by filter screen 2, and part is attached on filter screen 2 simultaneously, filter screen 2 is gradually blocked by impurity, water declines through the speed of filter screen 2, when speed drops to a certain degree, will affect normally carrying out of water treatment procedure.Common, the speed that the water inlet 31 of water inlet chamber 3 is intake is certain, when filter screen 2 blocks, the water level of intaking in chamber 3 will raise, filter screen 2 stopping state is more serious, the water level of then intaking in chamber 3 raises faster and the height reached is higher, the height of water level of water inlet chamber 3 changes as judging the foundation that filter screen 2 blocks by the present invention, and controls the duty of water treating module and/or washing machine according to judged result, and/or by master control borad, block information is passed to user.
Embodiment one
As shown in Figure 2, the height that the present embodiment sets in described water inlet chamber 3 is provided with gap 32, generally be located at the top into water chamber 3 sidepiece highest point or water inlet chamber 3, gap 32 is connected with overflow passage 33, described checkout gear 5 is located in overflow passage 33, this checkout gear 5 adopts electrode 51 connecting circuit to realize detecting, after filter screen 2 blocks, water intake velocity is greater than water speed, the water level of water inlet chamber 3 raises, when water inlet is overflow in overflow passage 33, checkout gear 5 sends signal to master control borad, and master control borad is judged as filter net jam.
The advantage of the present embodiment scheme is, be that part water can because spill losses be fallen during filter net jam, whole process water system can also work on, and completes this washing work.Such washing machine procedure can not suspend because of filter net jam or stop, even if user is not away from operating in time, washing machine can also complete this washing process, avoids the Consumer's Experience because suspending or stop the difference brought.After these washers complete or upper once use time, operation interface provides filter net jam report to the police, prompting user clean filter screen.
Embodiment two
As shown in Figure 3, the present embodiment is provided with a switch 52 in the height that described water inlet chamber 3 sets, and this switch is checkout gear 5, when water level rises to setting height, the switch that float drives closes, and gives master control borad signal transmission, and master control borad is judged as filter net jam.After being judged as filter net jam, continue run this washing work, after these washers complete or next time washing start before provide filter net jam report to the police, point out user clean filter screen.
Or switch 52 is set to two or more according to different height, the filter net jam of highly higher correspondence is more serious.According to the degree of filter net jam, make different processing modes.
Embodiment three
Being distinguished as of the present embodiment and above-described embodiment one and embodiment two: intake to the time judging that filter net jam is used according to from chamber of intaking, judge filter net jam degree, setting-up time is less than when detection time, then illustrate that process impurities in water is more, comparatively large on filter net jam impact during filtration, to should the situation of planting judge that filter screen is severe blocking, now stop water circulation process, washing machine adopts conventional mode of washing, namely enters clear water again after each directly draining and completes this washing work; Otherwise, setting-up time is not less than when detection time, then illustrate that process impurities in water is less, impurities in water is less on filter screen impact, even if blocking is also because long-time Inlet and outlet water speed difference causes rising into water chamber water level causing, now judges that filter screen is as slight blocking, then continue to run this washing work, after these washers complete, or provide filter net jam warning before starting in washing next time, prompting user cleans filter screen.
Embodiment four
As shown in Figure 4, the present embodiment is provided with the condensate tank of dehumidifier of Real-time Collection height of water level information in described water inlet chamber 3, be similar to the condensate tank of dehumidifier be arranged on existing outer barrel of washing machine, comprise air chamber 53 and sensor 54, judge the chocking-up degree of filter screen according to the different heights of water level detected.The advantage of the method is the different chocking-up degree information that can gather filter screen, thus master control borad according to different chocking-up degree, can make different coping styles; Different chocking-up degree can be shown when pointing out user simultaneously, or be shown as dynamic percentage or progress bar.Such control mode is more various, shows also more intelligent.
Embodiment five
As shown in Figure 5, the present embodiment arranges a perforate in the sidewall of described water inlet chamber 3 or bottom, and tapping arranges pressure-detecting device 55, judges the chocking-up degree of filter screen according to the different hydraulic pressure detected.
Washing machine master control borad, according to different chocking-up degrees, makes different coping styles; And with different prompting modes prompting user chocking-up degree, preferably, prompting mode is dynamic percentage or progress or color or sound.
Embodiment six
As shown in Figure 4 and Figure 5, described water inlet chamber 3 is also provided with a drainpipe 34, drainpipe 34 is provided with draining valve 35, when testing result is greater than setting value, master control borad sends signal draining valve 35 and opens, the water inlet of water inlet chamber 3 is directly drained by drainpipe 34, the aqueous reflux reverse flushing filter screen 2 of water outlet chamber 4.Like this when filter net jam to a certain extent time no longer filter, avoid filter net jam be too seriously not easy to cleaning.
Embodiment seven
The present embodiment is according to different chocking-up degrees, makes different coping styles:
When the result detected is higher than H1, be judged as slight blocking, prompting user program terminates rear cleaning filter screen;
During higher than H2, be judged as that moderate blocks, prompting user program terminates rear cleaning filter screen, keeps clean prompting when next time is run, and user's manual confirmation has cleaned after filter screen could normal working procedure;
When reaching H3 height, be judged as Severe blockage, have two kinds of processing mode: a, time out program, report to the police, cleaning filter screen, continues washing, after completed washings, reports to the police, cleaning filter screen; B, interrupts existing program, proceeds to the washing procedure not with treatment function, completes this washing, after completed washings, reports to the police, cleaning filter screen; Keep cleaning to report to the police when next time is run, user's manual confirmation could normal working procedure after having cleaned filter screen.Washing procedure not with treatment function is existing Normal Wash, and each washing rinsing completes first draining, then water inlet performs next step to designated water level.
Above-mentioned H1, H2, H3 are the height of water level or force value corresponding to different water level that detect.
Further, when in the washing cycle, when detecting filter net jam degree jump change, carry out fault alarm, water treating module breaks down.
Embodiment eight
In above-described embodiment, for washing machine does not have the processing mode of filter screen automatic cleaning function, the present embodiment washing machine has filter net jam automatic cleaning function, when judging that filter screen is slight and moderate blocks, does not need to point out user after EP (end of program), directly proceed to cleaning filter screen program automatically, when being judged as Severe blockage, without warning, directly proceed to cleaning filter screen program automatically, the corresponding different chocking-up degree of automatic cleaning filter screen program, selects varying strength and/or the filter gauze cleaning mode of time.
Water inlet chamber 3 in water storage tank of the present invention and water outlet chamber 4 are divided into left and right by filter screen 2 and arrange, and also can be divided into (consulting Fig. 6) setting up and down, and water inlet chamber 3 is located at top, and water outlet chamber 4 is located at bottom.
Embodiment in above-described embodiment can combine further or replace; and embodiment is only be described the preferred embodiments of the present invention; not the spirit and scope of the present invention are limited; under the prerequisite not departing from design philosophy of the present invention; the various changes and modifications that in this area, professional and technical personnel makes technical scheme of the present invention, all belong to protection scope of the present invention.
Claims (12)
1. a washing machine cycles water filtration judgment of clogging processing method, this washing machine has water treating module, for the treatment of the water after washing or rinsing to reuse in washing process; This water treating module comprises water storage tank and is located at the filter screen in water storage tank, water storage tank inner space is divided into into water and water outlet two chambers by filter screen, it is characterized in that: described water inlet chamber is provided with the checkout gear of sensed water level, checkout gear detects the water level of water inlet chamber, and detection signal is passed to master control borad, judged the degree of filter net jam by master control borad, and control the duty of water treating module or washing machine according to judged result, and/or block information is passed to user.
2. a kind of washing machine cycles water filtration judgment of clogging processing method according to claim 1, it is characterized in that: the height in described water inlet Chamber is provided with gap, be connected with overflow passage, described checkout gear is located in overflow passage, when water inlet is overflow in overflow passage, checkout gear sends signal to master control borad, and master control borad is judged as filter net jam.
3. a kind of washing machine cycles water filtration judgment of clogging processing method according to claim 1, it is characterized in that: the height in described water inlet Chamber is provided with switch, when water level rises to setting height, the switch that float drives closes, and give master control borad signal transmission, master control borad is judged as filter net jam.
4. a kind of washing machine cycles water filtration judgment of clogging processing method according to Claims 2 or 3, it is characterized in that: after being judged as filter net jam, continue to run this washing work, after these washers complete or next time washing start before provide filter net jam report to the police, prompting user clean filter screen.
5. a kind of washing machine cycles water filtration judgment of clogging processing method according to Claims 2 or 3, it is characterized in that: intake to the time judging that filter net jam is used according to from water inlet chamber, judge filter net jam degree, setting-up time is less than when detection time, judge that filter screen severe blocks, then stop water treatment, the laggard clear water of the direct draining of washing machine completes this washing work, otherwise, setting-up time is not less than when detection time, judge that filter screen slightly blocks, then continue to run this washing work, after these washers complete, or provide filter net jam before starting in washing next time to report to the police, prompting user cleans filter screen.
6. a kind of washing machine cycles water filtration judgment of clogging processing method according to claim 1, it is characterized in that: the condensate tank of dehumidifier being provided with Real-time Collection height of water level information in described intake antrum indoor, judges the chocking-up degree of filter screen according to the different heights of water level detected.
7. a kind of washing machine cycles water filtration judgment of clogging processing method according to claim 1, it is characterized in that: in the sidewall of described water inlet chamber or bottom, a perforate is set, tapping arranges pressure-detecting device, judges the chocking-up degree of filter screen according to the different hydraulic pressure detected.
8. a kind of washing machine cycles water filtration judgment of clogging processing method according to claim 6 or 7, it is characterized in that: described water inlet chamber is provided with a drainpipe, drainpipe is provided with draining valve, when testing result is greater than setting value, master control borad sends signal draining valve and opens, the water inlet of water inlet chamber is directly drained by drainpipe, the aqueous reflux reverse flushing filter screen of water outlet chamber.
9. a kind of washing machine cycles water filtration judgment of clogging processing method according to claim 6 or 7, is characterized in that: washing machine master control borad, according to different chocking-up degrees, makes different coping styles; And with different prompting modes prompting user chocking-up degree, preferably, prompting mode is dynamic percentage or progress or color or sound.
10. a kind of washing machine cycles water filtration judgment of clogging processing method according to claim 9, is characterized in that: when the result of detection is higher than H1, is judged as slight blocking, and prompting user program terminates rear cleaning filter screen;
During higher than H2, be judged as that moderate blocks, prompting user program terminates rear cleaning filter screen, keeps clean prompting when next time is run, and user's manual confirmation has cleaned after filter screen could normal working procedure;
When reaching H3 height, be judged as Severe blockage, have two kinds of processing mode: a, time out program, report to the police, cleaning filter screen, continues washing, after completed washings, reports to the police, cleaning filter screen; B, interrupts existing program, proceeds to the washing procedure not with treatment function, completes this washing, after completed washings, reports to the police, cleaning filter screen; Keep cleaning to report to the police when next time is run, user's manual confirmation could normal working procedure after having cleaned filter screen.
11. a kind of washing machine cycles water filtration judgment of clogging processing methods according to claim 10, is characterized in that: when in the washing cycle, and when detecting filter net jam degree jump change, carry out fault alarm, water treating module breaks down.
12. a kind of washing machine cycles water filtration judgment of clogging processing methods according to claim 10, it is characterized in that: washing machine has filter net jam automatic cleaning function, when judging that filter screen is slight and moderate blocks, do not need after EP (end of program) to point out user, directly proceed to cleaning filter screen program automatically, when being judged as Severe blockage, without warning, directly proceed to cleaning filter screen program automatically, the corresponding different chocking-up degree of automatic cleaning filter screen program, selects varying strength and/or the filter gauze cleaning mode of time.
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| CN108315944A (en) * | 2017-01-17 | 2018-07-24 | 青岛海尔滚筒洗衣机有限公司 | The condensation water collection method and laundry care all-in-one machine of laundry care all-in-one machine |
| CN110004651A (en) * | 2018-01-05 | 2019-07-12 | 青岛海尔洗衣机有限公司 | A kind of clothes processing method and clothes treatment device |
| CN111359285A (en) * | 2020-04-16 | 2020-07-03 | 中山市翔实机械设备有限公司 | Filtering device, sewage treatment equipment and sewage treatment method |
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| WO2018133447A1 (en) * | 2017-01-17 | 2018-07-26 | 青岛海尔滚筒洗衣机有限公司 | Condensate water collection method of clothing care all-in-one machine, and clothing care all-in-one machine |
| CN108315944B (en) * | 2017-01-17 | 2020-10-30 | 青岛海尔滚筒洗衣机有限公司 | Condensed water collection method of clothes nursing all-in-one machine and clothes nursing all-in-one machine |
| CN110004651A (en) * | 2018-01-05 | 2019-07-12 | 青岛海尔洗衣机有限公司 | A kind of clothes processing method and clothes treatment device |
| CN111359285A (en) * | 2020-04-16 | 2020-07-03 | 中山市翔实机械设备有限公司 | Filtering device, sewage treatment equipment and sewage treatment method |
| CN111826885A (en) * | 2020-06-11 | 2020-10-27 | 青岛海尔洗衣机有限公司 | Drain pipe filter screen blockage diagnosis method and washing machine |
| WO2022042271A1 (en) * | 2020-08-27 | 2022-03-03 | 重庆海尔洗衣机有限公司 | Washing machine and control method therefor |
| CN112982582A (en) * | 2021-02-08 | 2021-06-18 | 南京肃凯征贸易有限公司 | Device for detecting whether drainage pipeline of building is blocked or not |
| CN113598635A (en) * | 2021-08-14 | 2021-11-05 | 深圳市礼家电器科技有限公司 | Dirt collecting, draining and cleaning device and method for fruit and vegetable cleaning machine |
| WO2024027738A1 (en) * | 2022-08-02 | 2024-02-08 | 青岛海尔洗衣机有限公司 | Filtering module, filtering module control method, and washing equipment |
| WO2024027744A1 (en) * | 2022-08-02 | 2024-02-08 | 青岛海尔洗衣机有限公司 | Control method for washing device, and washing device |
| WO2024034793A1 (en) * | 2022-08-09 | 2024-02-15 | 삼성전자주식회사 | Filter apparatus and clothes treating apparatus having same |
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