CN101363181B - Foam detecting method of washing machine - Google Patents
Foam detecting method of washing machine Download PDFInfo
- Publication number
- CN101363181B CN101363181B CN2008101279878A CN200810127987A CN101363181B CN 101363181 B CN101363181 B CN 101363181B CN 2008101279878 A CN2008101279878 A CN 2008101279878A CN 200810127987 A CN200810127987 A CN 200810127987A CN 101363181 B CN101363181 B CN 101363181B
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- China
- Prior art keywords
- foam
- mentioned
- water discharge
- washing machine
- discharge time
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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
-
- 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
- D06F33/46—Control of the energy or water consumption
-
- 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
-
- 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
- D06F39/06—Arrangements for preventing or destroying scum
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/38—Time, e.g. duration
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention relates to a foam detecting method of a washing machine. The foam detecting method of a washing machine in the invention judges whether the foam is generated in the washing process after the unwatering process, rather than by comparing the drainage time and foam drainage time prior to the occurrence of the bubble to determine whether or not. Because of judging the emergence of the foam or not in advance in the course of draining off water, rather than judge in the unwatering process, and carrying out the foam to remove and operate according to judged result, thus the invention can avoid the adverse effect caused by happening in bubble.
Description
Technical field
The present invention relates to a kind of foam detecting method that in carrying out washing stroke, detects foam of washing machine.
Background technology
Fig. 1 is the detection of the foam in the implementation of the washing stroke that is made of feedwater, washing, draining, dehydration of the prior art and the flow chart of removal method; Fig. 2 is the experimental diagrams that the rotation number with washing motor in the dehydration of time presentation graphs 1 changes, and wherein, the X-axis on the chart is with minute representing.
With reference to Fig. 1, washing stroke of the prior art carries out according to the order of feedwater process S10, washing process S11, drainage procedure S12, dehydration S13, S16, wherein, in dehydration S13, utilizes whether S14 of generation that level sensor detects foam.In general, during less than reference water place value (23.0KHz), will be judged as foam, thereby will finish ongoing dehydration S13, and carry out dehydration S16 again after foam is removed operation S15 carrying out by the detected water level value of level sensor.Remove among the operation S15 at above-mentioned foam, will feed water repeatedly, and cylinder is just being carried out/contrary operation of rotating with low speed.Judge in above-mentioned dehydration S13 the generation whether reason of foam is with as described below.
With reference to Fig. 2, from dehydration S13 through after 1.9-2.0 minute time, the rotation number of washing motor with urgency accelerate to 400RPM (rev/min).At this moment, by experiment as can be known, the anxious acceleration of washing motor will make the more discharge of foam that comprises in the washings, because the foam volume of discharging is a lot, the generation that can be relatively easy to detect foam whether.
But whether the generation of judging foam in dehydration S13 and when carrying out foam and removing operation S15, be tackled by foam and take place and the various problems that causes will be too late.
Promptly when judging the foam generation and carry out foam removal operation S15, foam spills into the outside by detergent box.
Continue consumed energy failing to reach under the situation of desirable scourability this moment, and increased the time period after the unnecessary energy consumption.
The foam that has overflowed drops on the floor, and the consumer is slipped by foam, or the unsafe condition time period afterwards that causes short circuit and cause breaking out of fire.
Its result owing to fail to tackle rapidly the generation of foam, by foam take place and the factor of after-sale services that causes with corresponding increase, thereby cause the reliability of product to reduce, and cause that the consumer's is discontented.
The content of invention
In order to solve the problem that exists as mentioned above, the foam detecting method of the washing machine among the present invention, in the washing stroke that comprises the dehydration of carrying out after drainage procedure finishes, it includes following several steps: the step that detects the water discharge time of washings in its drainage procedure; The benchmark draining time ratio that detects before above-mentioned water discharge time and foam taken place and is judged the generation whether step of foam.
Wherein, above-mentioned water discharge time is the time that washings were discharged and arrived empty water level, or the power of washing machine time of arriving draining power and keeping.
Wherein, above-mentioned draining power is the power that draining pump consumed in the above-mentioned drainage procedure, be the power that consumes in washing process or the dehydration 0.2-0.3 doubly.
When above-mentioned water discharge time is longer than the said reference water discharge time, will be judged as foam and take place, more specifically, when above-mentioned water discharge time is 4-5 times of said reference water discharge time, will be judged as foam and take place.
Foam detecting method according to the washing machine among aforesaid the present invention, in the washing stroke that comprises the dehydration of carrying out after drainage procedure finishes, the generation of in dehydration, not judging foam whether, but the generation that the water discharge time before the water discharge time by washings relatively and foam take place in drainage procedure is judged foam is whether.Because the generation of prejudging out foam in drainage procedure whether, rather than judge in dehydration, and will carry out foam according to its judged result and remove operation, thereby can avoid taking place and the adverse effect that causes by foam.That is, take place by in drainage procedure, detecting foam in advance, thereby can prevent the situation that foam overflows by detergent box in advance.Can prevent in advance also that scourability from not reaching under the perfect condition continues consumed energy, and increases the situation that unnecessary energy consumes.Simultaneously, can prevent in advance that the foam that overflows from dropping on the floor, cause the consumer to be slipped, or cause short circuit and cause the situation of fire by foam.Can eliminate the after-sale service factor that causes by the foam generation, thereby improve the reliability of product, improve the satisfaction of consumer product.
Description of drawings
Fig. 1 is the detection of the foam in the implementation of the washing stroke that is made of feedwater, washing, draining, dehydration of the prior art and the flow chart of removal method;
Fig. 2 is the experimental diagrams with the rotation number variation of the washing motor in the dehydration of time presentation graphs 1;
Fig. 3 is a schematic diagram of carrying out the washing machine of the foam detecting method in one embodiment of the invention;
Fig. 4 is the flow chart that comprises the washing stroke of the foam detecting method among Fig. 3;
Fig. 5 is the chart of the consumed power of the water discharge time of the washings when not having foam to take place in the drainage procedure of Fig. 4 and draining pump;
Fig. 6 is the chart of the consumed power of the water discharge time of the washings when foam takes place in the drainage procedure of Fig. 4 and draining pump.
The symbol description of accompanying drawing major part
3: washing drum 9: cylinder
40: draining pump 50: level sensor
The specific embodiment
Below, the foam detecting method of the washing machine in one embodiment of the invention is described in detail.Fig. 3 is a schematic diagram of carrying out the washing machine of the foam detecting method in one embodiment of the invention; Fig. 4 is the flow chart that comprises the washing stroke of the foam detecting method among Fig. 3.
With reference to Fig. 3, carry out the washing machine of the foam detecting method in one embodiment of the invention, it includes: the housing 5 that forms outward appearance; Be installed on the inside of above-mentioned housing 5, and be used to store the washing drum 3 of washings; Rotatable being installed in the above-mentioned washing drum 3, and be used to throw in the cylinder 9 of washings; Be used to rotate the washing motor 7,8 of above-mentioned cylinder 9; Be used for the revolving force of washing motor 7,8 is passed to the rotating shaft 17 of above-mentioned cylinder 9; Be used to support the bearing 11 of above-mentioned rotating shaft 17; Be used to prevent that the water between above-mentioned washing drum 3 and the cylinder 9 from flowing into the containment member 13 of above-mentioned bearing 11; Be used for supplying with the detergent delivery device 30 of the water that mixes with washing agent to above-mentioned washing drum 3; Constitute by a plurality of valves, and be used for supplying with or disconnecting the waterworks 20 of water to above-mentioned detergent delivery device 30; Be used for draining pump 40 that the water that above-mentioned washing drum 3 stores is extracted out to the outside; Be installed on the downside of above-mentioned washing drum 3, and be used to detect the level sensor 50 of the washings water level in the above-mentioned washing drum 3; The input user's operating command, and be used to control the control panel 70 of the integrated operation of washing machine.
The place ahead of above-mentioned housing 5 is equipped with door of washing machine 1, between above-mentioned door of washing machine 1 and washing drum 3 sealing gasket 2 is installed.
Between the outer peripheral face upside of the upper side inboard of above-mentioned housing 5 and washing drum 3, the pendulum spring 4 that is used to support above-mentioned washing drum 3 is installed.And, the frcition damper 10 of the vibration of the above-mentioned washing drum 3 that is used to decay is installed between the outer peripheral face downside of the bottom surfaces inboard of above-mentioned housing 5 and washing drum 3.
The a plurality of lifting device 9a that are used to lift and put down washings are installed in the inside of above-mentioned cylinder 9.
Above-mentioned washing motor 7,8 is the direct type motor, and it includes: the stator 7 that is provided with the coil of winding in the slot; Outer peripheral face in said stator 7 is rotated, and side is provided with the rotor 8 of permanent magnet 12 within it.
Wherein, said stator 7 will be incorporated into the rear wall of above-mentioned washing drum 3 by a plurality of combination members 19.
8 rearward end that are incorporated into rotating shaft 17 by combination member 18 of above-mentioned rotor.
Along with supply power in the coil of said stator 7 and obtain electromagnetization, the interaction of the permanent magnet 12 that above-mentioned rotor 8 will be provided with by the inboard with above-mentioned rotor 8 is rotated, and the revolving force of above-mentioned rotor 8 will be delivered to above-mentioned cylinder 9 by rotating shaft 17.
Above-mentioned bearing 11 is installed on the place ahead and the rear of rotating shaft 17 respectively, and the above-mentioned rotating shaft 17 of rotatable support.
Above-mentioned containment member 13 inserts and is installed on the outer peripheral face of above-mentioned rotating shaft 17, and is used for preventing that the water between above-mentioned washing drum 3 and the cylinder 9 from penetrating into above-mentioned bearing 11.
Above-mentioned detergent delivery device 30 mixes water and the washing agent of supplying with, and will supply to above-mentioned washing drum 3 by supply pipe 31.As the one example, above-mentioned detergent delivery device 30 can be made of following structure, that is, detergent delivery device 30 can be by the inside that is installed on shell and above-mentioned shell, and the detergent box that is used to store various washing agent constitutes.
The bottom surface of above-mentioned detergent box is formed with siphon pipe, is formed with the supply port that is connected with tube connector 22 at the upside of shell, and, be formed with the washing agent outlet that is connected with above-mentioned supply pipe 31 in the bottom surface of shell.
According to aforesaid structure, after the washing agent that stores in the water of supplying with by tube connector 22 and the detergent box mixes, when reaching certain water level, to discharge from above-mentioned detergent box by siphon pipe, the water that mixes with washing agent of discharging from above-mentioned detergent box will supply to the washing drum 3 by above-mentioned supply pipe 31.
Be equipped with in the above-mentioned waterworks 20: the supply pipe 21 that is connected with the water supply source (warm water or cold water) of outside; The tube connector 22 that is connected with above-mentioned detergent delivery device 30.
Be separately installed with in the above-mentioned draining pump 40: the drainpipe 41 that is connected with the downside of above-mentioned washing drum 3; The tube connector 42 that is connected with the water discharge outlet of outside.
As open in granted patent (KR10-042512 number), can include in the above-mentioned level sensor 50: body; Be contained in the coil of body interior; Water level according to washings moves up and down, and changes the core of the inductance value of coil; Be used to hold the core support of core; Hydraulic pressure such as bellows or diaphragm transfer device.
With reference to Fig. 4, washing stroke carries out according to the order of feedwater process S20, washing process S21, drainage procedure S22, dehydration S25, wherein, in drainage procedure S22, the benchmark water discharge time that detects before the water discharge time of washings and foam taken place compares, and the generation of judging foam S23 whether.
Fig. 5 is the chart of the consumed power of the water discharge time of the washings when not having foam to take place in the drainage procedure of Fig. 4 and draining pump; Fig. 6 is the chart of the consumed power of the water discharge time of the washings when foam takes place in the drainage procedure of Fig. 4 and draining pump, wherein, the X-axis in the chart with hour, minute, second represents.
With reference to Fig. 5 and accompanying drawing 6, when not having foam to take place in drainage procedure S22, the water discharge time of detected washings is 34 seconds; When foam took place in drainage procedure S22, detected water discharge time was 2 minutes and 19 seconds.
Above-mentioned water discharge time is that washings obtain discharging and arrive empty water level, or the power of washing machine is maintained the time of draining power.Wherein, draining power is the power that is consumed by draining pump in the drainage procedure, it be the power that consumed in washing process or the dehydration 0.2-0.3 doubly.In the present embodiment, the consumed power of detected draining pump is 23-38.5W.
As mentioned above, situation its water discharge time longer reason of situation when foam takes place when not having foam to take place is that foam makes the volume increase of washings, and discharge contained the washings of foam, therefore, arrive the required time of empty water level with corresponding lengthening.And under the effect of foam, washings can't smooth and easyly be discharged.Therefore, under the situation that foam takes place, draining pump 40 should need to drive 4-5 times time when not having foam to take place more.
With reference to Fig. 4, in drainage procedure S22, when the water discharge time of washings is longer than the benchmark water discharge time, will be judged as foam S23 will take place, and finish ongoing drainage procedure S22, and, after carrying out foam removal operation S24, carry out dehydration S25.
Wherein, the benchmark water discharge time refers under the situation that does not have foam to take place, and detects and be stored in the water discharge time of the washings in the microcomputer in advance.
Remove among the operation S23 at above-mentioned foam, will feed water by waterworks repeatedly, and make cylinder carry out the operation of just contrary rotation with low speed.
As mentioned above, in the present invention, the generation of not judging foam in dehydration S25 whether, but in drainage procedure S22, whether the generation that water discharge time before water discharge time by washings relatively and foam take place is judged foam takes place and the various problems that causes thereby can tackle in advance rapidly by foam.
Claims (6)
1. the foam detecting method of a washing machine in the washing stroke that comprises the dehydration of carrying out after drainage procedure finishes, is characterized in that: include following several steps:
In its drainage procedure, detect the step of the water discharge time of washings;
The benchmark draining time ratio that detects before above-mentioned water discharge time and foam taken place and is judged the generation whether step of foam; When above-mentioned water discharge time is longer than the said reference water discharge time, is judged as foam and takes place.
2. the foam detecting method of washing machine according to claim 1, it is characterized in that: above-mentioned water discharge time is the time that washings were discharged and arrived empty water level.
3. the foam detecting method of washing machine according to claim 1 is characterized in that: above-mentioned water discharge time is the time that the power of washing machine arrives draining power and keeps.
4. the foam detecting method of washing machine according to claim 3, it is characterized in that: above-mentioned draining power is the power that draining pump consumed in the above-mentioned drainage procedure.
5. the foam detecting method of washing machine according to claim 3 is characterized in that: above-mentioned draining power be the power that consumes in washing process or the dehydration 0.2-0.3 doubly.
6. according to the foam detecting method of claim 1 any one described washing machine to the claim 5, it is characterized in that: when above-mentioned water discharge time is 4-5 times of said reference water discharge time, is judged as foam and takes place.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2007-0123062 | 2007-11-29 | ||
| KR1020070123062 | 2007-11-29 | ||
| KR1020070123062A KR101463809B1 (en) | 2007-11-29 | 2007-11-29 | Method for detecting bubble of washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101363181A CN101363181A (en) | 2009-02-11 |
| CN101363181B true CN101363181B (en) | 2010-08-11 |
Family
ID=40389770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101279878A Expired - Fee Related CN101363181B (en) | 2007-11-29 | 2008-07-03 | Foam detecting method of washing machine |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101463809B1 (en) |
| CN (1) | CN101363181B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2017203834B2 (en) * | 2016-06-08 | 2019-10-03 | Lg Electronics Inc. | Laundry treatment apparatus and method of controlling the same |
| CN108978114B (en) * | 2017-06-01 | 2021-11-26 | 上海海尔洗涤电器有限公司 | Foam detection method of washing machine |
| CN109468808A (en) * | 2017-09-08 | 2019-03-15 | 青岛海尔滚筒洗衣机有限公司 | Debubbling method and clothes treatment device for clothes treatment device |
| CN108265461B (en) * | 2017-12-22 | 2020-06-16 | 珠海格力电器股份有限公司 | Method and device for treating foam in washing machine |
| CN108035122B (en) * | 2018-01-27 | 2019-11-26 | 深圳市景方盈科技有限公司 | A kind of foam-resistant spilling washing machine |
| CN108179586B (en) * | 2018-01-27 | 2019-12-27 | 深圳市景方盈科技有限公司 | Foam control method for washing machine |
| CN111197246B (en) * | 2018-11-19 | 2022-07-29 | 佛山海尔滚筒洗衣机有限公司 | Washing equipment foam detection and elimination method and washing equipment |
| KR20240085633A (en) * | 2022-12-08 | 2024-06-17 | 엘지전자 주식회사 | Method of removing detergent foam using drainage information and washing machine implementing thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2702004A1 (en) * | 1976-01-20 | 1977-07-21 | Malcom Ellis Liverpool | DEVICE FOR DETERMINING THE DEGREE OF FOAMING IN A FLUID OR EMULSION |
| GB1581330A (en) * | 1976-01-20 | 1980-12-10 | Malcom Ellis Liverpool | Device for detecting predetermined foaming conditions in fluids or emulsions |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000055285A (en) * | 1999-02-01 | 2000-09-05 | 윤종용 | Bubble exclusion method of drum washing machine |
| KR101034198B1 (en) * | 2005-02-02 | 2011-05-12 | 삼성전자주식회사 | Washing machine and method to sense suds thereof |
| KR100669009B1 (en) * | 2005-02-02 | 2007-01-16 | 삼성전자주식회사 | Method to sense suds of washing machine |
| KR101095555B1 (en) * | 2005-05-04 | 2011-12-19 | 삼성전자주식회사 | Washing machine and method to remove suds thereof |
-
2007
- 2007-11-29 KR KR1020070123062A patent/KR101463809B1/en not_active IP Right Cessation
-
2008
- 2008-07-03 CN CN2008101279878A patent/CN101363181B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2702004A1 (en) * | 1976-01-20 | 1977-07-21 | Malcom Ellis Liverpool | DEVICE FOR DETERMINING THE DEGREE OF FOAMING IN A FLUID OR EMULSION |
| GB1581330A (en) * | 1976-01-20 | 1980-12-10 | Malcom Ellis Liverpool | Device for detecting predetermined foaming conditions in fluids or emulsions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101363181A (en) | 2009-02-11 |
| KR20090056079A (en) | 2009-06-03 |
| KR101463809B1 (en) | 2014-11-20 |
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Granted publication date: 20100811 Termination date: 20120703 |