CN101736552B - Method for detecting washing powder residue and washing machine - Google Patents
Method for detecting washing powder residue and washing machine Download PDFInfo
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- CN101736552B CN101736552B CN 200810176529 CN200810176529A CN101736552B CN 101736552 B CN101736552 B CN 101736552B CN 200810176529 CN200810176529 CN 200810176529 CN 200810176529 A CN200810176529 A CN 200810176529A CN 101736552 B CN101736552 B CN 101736552B
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Abstract
The invention discloses a method for detecting washing powder residue and a washing machine. The washing machine comprises a water barrel, a water inlet pipeline, a water outlet pipeline, a driving device and a control device, wherein the water inlet pipeline comprises a main path and a bypath; the main path is communicated with the water barrel after passing through a washing powder box; the washing powder is dissolved with water entering the main path to form cleaning solution which enters the water barrel; the bypath is directly communicated with the water barrel; a conductivity sensor, which is used for judging whether the washing powder residue exists in washings or not by detecting the conductivity of washing water, is arranged at an air chamber opening or a water outlet of the washing machine or the bottom of an external washing barrel; and the conductivity sensor detects the change of the conductivity of the water to determine the washing powder residue, so that the rinsing times are increased according to the washing powder residue until the washing powder residue is detected to be lower than the safety standard, the rinsing process is finished and the dehydrating process is performed. The method for detecting the washing powder residue and the washing machine can modify the rinsing times well through the accurate detection of the washing powder residue so as to wash and rinse cleanly and bring a healthy washing mode for users.
Description
Technical field
The present invention relates to a kind of laundering process and washing machine, especially a kind ofly can detect the residual method of washing powder and washing machine.
Background technology
Current washing machine adopts fixing washing procedure mostly, especially the input amount of washing powder is not controlled, is relied on user's sensation to be added fully, thus cause same program operation finished after, also residual on the possible clothes have washing powder, and washing powder is harmful to the health of human body.
Existing washing machine, or no matter clothes dirty or the washing powder that adds how much be fixedly installed wash time and rinsing number of times; Only detect the degree of fouling of laundry water and judge wash time and rinsing number of times, and ignored the residual of washing powder, no matter fixing wash time is residual how many all equally washing and rinsings of washing powder.If the washing powder that adds is too much, may cause rinsing unclean, residual on the clothes have washing powder, and human body is damaged; If add less washing powder, may cause the phenomenon of wasting water; Equally, if only simply judge the degree of fouling of clothing, and do not judge the residual of washing powder, also may cause clothing not have rinsing clean, it is residual that washing powder has, and equally human body damaged.And by adding the detection of washing powder, just can well revise the rinsing number of times, that really accomplishes to wash is clean, that floats is clean, bring healthy laundry mode to the user, so whether how to detect exactly washing powder has residual, residual quantity how much, is to guarantee that washing powder does not have residual necessary condition.
Usually, various sensors are installed in the washing machine to detect the wash conditions of several washing operation necessity.Washing machine suitably drives to obtain maximum clean result according to the wash conditions that detects.With regard to the sensor of present washing machine, sensor for detection of the amount that enters the slurry in the cylindric washer, a temperature sensor of whether drying for detection of washed clothing, dirty degree for detection of washings, thereby revise the turbidity transducer of wash time, and be suggested and be used for the conductivity sensor that calculates slurry hardness.
Application number is the conductivity sensor that the Chinese patent of 200380100062.X discloses a kind of slurry, a kind of mounting structure of this conductivity sensor, and being used for the method for this washing machine of control, it can control washing machine by the hardness from the Conductivity Calculation slurry of the slurry measured.
Whether above-mentioned sensor purpose all is to detect the situation of the front washings of washing machine work, do not have residual situation to detect for washing powder in the washings after the washing.
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, provide a kind of can detect exactly washing powder whether have residual, residual quantity what, and determine that according to residual quantity the rinsing number of times is to save the detection method of cost.
Another object of the present invention is to provide a kind of and can detect the residual washing machine of washing powder.
For solving the problems of the technologies described above, the present invention adopts the basic conception of technical scheme to be: adopt at washing machine air chamber mouth or water discharge outlet or steel ladle inner bottom part position installation conductivity sensor, the residual of washing powder determined in the variation that utilizes conductivity sensor to detect electrical conductivity of water, thereby the residual increase rinsing number of times according to washing powder, washing powder is residual to reach certain standard until detect, finish rinsing, dewater.
Described detection method concrete steps are:
One, advance clear water to designated water level, computer program controller is measured the electrical conductivity of this moment, is designated as a, and storage;
Two, advance washings to designated water level, and wash the time of setting according to program, computer program controller is measured the electrical conductivity of this moment, is designated as b, and storage;
Three, proceed washing, when washing procedure finished, computer program controller was measured the electrical conductivity of this moment again, is designated as c, and storage;
Four, according to the electrical conductivity determining program of programming, according to a of record, b, three numerical value of c are judged and whether have been added washing powder, if, then carry out next step, if not, then carry out other washing according to dirty degree; Judge whether to add washing powder for according to the numerical value of electrical conductivity determining program b-a whether more than or equal to 100ppm, if then represent to contain excessive washing powder in the second stepping washings, if not, then washing powder is not added in expression, or the washing powder amount of adding is in the safety standard; Carrying out other washing according to dirty degree then is: the interpolation washing powder washing that the rinsing that dirty degree is low and dirty degree are high;
Five, washing machine carries out rinsing program, after the time that first dewatering is set, again advances clear water to designated water level again;
Six, after the time that washing is set, detect the electrical conductivity of this moment, be designated as d, and storage;
Seven, according to the electrical conductivity determining program of programming, judge whether washing powder has residual, if residual standard less than setting is then no longer carried out rinsing, Direct Dehydration, EP (end of program); If washing powder is residual greater than this standard, then forwarded for the 5th step to, the rinsing of again intaking is until the residual quantity that detects is less than this standard.
This electrical conductivity determining program is, if d≤c and d-a≤200ppm then do not need to carry out rinsing again, otherwise the rinsing of again intaking is until the electrical conductivity that detects satisfies d≤c and d-a≤200ppm.
Described the first stepping clear water is intake for passing through different intake tunnels with described the second stepping washings, advance the intake tunnel of washings in the second step by washing powder box, and the first step is for directly advancing clear water to steel ladle.
A kind ofly above-mentionedly can detect the residual washing machine of washing powder, described washing machine comprises washtub, steel ladle, inlet pipeline, outlet pipeline and drive unit and control device, described inlet pipeline comprises primary path and bypass, primary path is communicated with steel ladle by behind the washing powder box, the cleaning solution that forms behind the water inlet dissolving washing powder enters steel ladle, bypass directly is communicated with steel ladle, is provided with in the washing machine by detecting the washings electrical conductivity to judge the whether conductivity sensor of residual washing powder of washing clothes.
Described inlet pipeline water inlet end is provided with the bilateral water intaking valve, one end connects running water inlet, the other end is provided with two controlled outlets, and an outlet forms primary path by water pipe with being communicated with steel ladle after washing powder box is connected again, and the direct formation bypass that is communicated with steel ladle of water pipe is passed through in another outlet.
Above-mentioned washing machine can be that rotary drum washing machine also can be roller washing machine, in order to improve accuracy in detection, can connect electrolysis unit and/or demineralizer at inlet pipeline.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
The present invention just can detect the concentration of washing powder, thereby it is residual to judge whether washing powder has by detecting the laundry electrical conductivity of water.The erroneous judgement that causes because hardness of water causes too greatly electrical conductivity to increase in order to prevent, can be in laundry at first by bypass, namely do not advance a small amount of water to washing machine drum by washing powder box, detect first initial electrical conductivity, and then detect electrical conductivity after the washing powder box water inlet, see whether both change, whether advanced washing powder thereby judge, again by detecting the washings electrical conductivity after the rinsing, thereby whether the concentration of judging washing powder satisfies the low content standard, by the comparison of washings electrical conductivity, thereby adjust the number of times of rinsing clothes, reduce wash time, reduced the washing cost, brought healthy laundry mode to the user.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Description of drawings
Fig. 1 is the schematic flow sheet that the present invention detects the residual method of washing powder;
Fig. 2 is the schematic diagram that the present invention can detect the residual washing machine of washing powder.
The specific embodiment
Washing machine of the present invention can detect the residual principle of washing powder be washing powder water-soluble after, concentration is different, its electrical conductivity is just different, by detecting the laundry electrical conductivity of water, just can detect the concentration of washing powder, thereby it is residual to judge whether washing powder has.
As shown in Figure 2, washing machine of the present invention comprises washtub 1, steel ladle 2, inlet pipeline 3, outlet pipeline 4 and drive unit 5 and control device 6, described inlet pipeline 3 comprises primary path 31 and bypass 32, primary path 31 passes through to be communicated with steel ladle 2 behind the washing powder box 7, the cleaning solution that forms behind the water inlet dissolving washing powder enters steel ladle 2, bypass 32 directly is communicated with steel ladle 2, is provided with in the washing machine by detecting the washings electrical conductivity to judge the whether conductivity sensor 8 of residual washing powder of washing clothes.
The water inlet end of described inlet pipeline 3 is provided with bilateral water intaking valve 9, one end connects running water inlet 10, the other end is provided with two controlled outlets, one outlet A forms primary path 31 by water pipe with being communicated with steel ladle 2 after washing powder box 7 is connected again, and another outlet B passes through the direct formation bypass 32 that is communicated with steel ladle 2 of water pipe.
Described conductivity sensor 8 steel ladles of the embodiment of the invention 2 inner bottom parts, conductivity sensor also can be located at washing machine air chamber mouth or water discharge outlet.
Above-mentioned washing machine can be that rotary drum washing machine also can be roller washing machine, in order to improve accuracy in detection, can connect the device that electrolysis unit and/or demineralizer etc. can reduce water impurity and the water hardness at inlet pipeline.
The residual method of detection washing powder of the present invention, the residual of washing powder determined in the variation that utilizes conductivity sensor to detect electrical conductivity of water, thereby according to the residual increase rinsing number of times of washing powder, washing powder is residual to reach certain standard until detect, finish rinsing, dewater.
As shown in Figure 1, the concrete steps of detection method are:
One, advance clear water to designated water level, water level is higher than conductivity sensor and gets final product, and computer program controller is measured the electrical conductivity of this moment, is designated as a, and storage;
Two, advance washings to designated water level, and according to the time that the program washing is set, got final product in 3～5 minutes, computer program controller is measured the electrical conductivity of this moment, is designated as b, and storage;
Three, proceed washing, when washing procedure finished, computer program controller was measured the electrical conductivity of this moment again, is designated as c, and storage;
Four, according to the electrical conductivity determining program of programming, according to a of record, b, three numerical value of c are judged and whether have been added washing powder, if, then carry out next step, if not, then carry out other washing according to dirty degree; Judge whether to add washing powder for according to the numerical value of electrical conductivity determining program b-a whether more than or equal to 100ppm, if then represent to contain excessive washing powder in the second stepping washings, if not, then washing powder is not added in expression, or the washing powder amount of adding is in the safety standard; Carrying out other washing according to dirty degree then is: the interpolation washing powder washing that the rinsing that dirty degree is low and dirty degree are high;
Five, washing machine carries out rinsing program, after the time that first dewatering is set, again advances clear water to designated water level again;
Six, after the time that washing is set, detect the electrical conductivity of this moment, be designated as d, and storage;
Seven, according to the electrical conductivity determining program of programming, judge whether washing powder has residual, if residual standard less than setting is then no longer carried out rinsing, Direct Dehydration, EP (end of program); If washing powder is residual greater than this standard, then forwarded for the 5th step to, the rinsing of again intaking is until the residual quantity that detects is less than this standard.
This electrical conductivity determining program is, if d≤c and d-a≤200ppm then do not need to carry out rinsing again, otherwise the rinsing of again intaking is until the electrical conductivity that detects satisfies d≤c and d-a≤200ppm.
Described the first stepping clear water is intake for passing through different intake tunnels with described the second stepping washings, the intake tunnel that advances washings in the second step is the primary path by the washing powder box water inlet, and first step intake tunnel is for directly advancing the bypass of clear water to steel ladle.
Embodiment
Washing machine begins washing, and each electrical conductivity a of detection is 100ppm, and b is 2000ppm, and c is 2100ppm;
So, because b-a=1900ppm then judges and judges adding washing powder in the washings.
After entering the rinsing program first time, the electrical conductivity d1 that has washed detection is 1000ppm.D1=1000ppm is less than c=2100ppm, and d1-a=900 then increases a rinsing greater than 200; Redeterminating electrical conductivity d2 is 500ppm, and then d2-a=400 also greater than 200, carries out a rinsing again, again records d3=200ppm, d3-a=100＜200 then, and the residual quantity of detection is less than this standard, and rinsing finishes, and directly enters dehydration procedure.
The present invention judges whether washing powder has residual by the washings electrical conductivity that more different wash times detect, thereby adjusts the number of times of rinsing clothes, has reduced wash time, has reduced the washing cost, brings healthy laundry mode to the user.
Claims (9)
1. one kind is detected the residual method of washing powder, it is characterized in that: utilize variation that conductivity sensor detects electrical conductivity of water determining the residual of washing powder, thereby according to the residual increase rinsing number of times of washing powder, washing powder is residual to be lower than safety standard until detect, finish rinsing, dewater.
2. a kind of residual method of washing powder that detects according to claim 1, it is characterized in that: described detection method concrete steps are:
One, advance clear water to designated water level, computer program controller is measured the electrical conductivity of this moment, is designated as a, and storage;
Two, advance washings to designated water level, and wash the time of setting according to program, computer program controller is measured the electrical conductivity of this moment, is designated as b, and storage;
Three, proceed washing, when washing procedure finished, computer program controller was measured the electrical conductivity of this moment again, is designated as c, and storage;
Four, according to the electrical conductivity determining program of programming, according to a of record, b, three numerical value of c are judged and whether have been added washing powder, if, then carry out next step, if not, then carry out other washing according to dirty degree;
Five, washing machine carries out rinsing program, after the time that first dewatering is set, again advances clear water to designated water level again;
Six, after the time that washing is set, detect the electrical conductivity of this moment, be designated as d, and storage;
Seven, according to the electrical conductivity determining program of programming, judge whether washing powder has residual, if residual standard less than setting is then no longer carried out rinsing, Direct Dehydration, EP (end of program); If washing powder is residual greater than this standard, then forwarded for the 5th step to, the rinsing of again intaking is until the residual quantity that detects is less than this standard.
3. a kind of residual method of washing powder that detects according to claim 2, it is characterized in that: described the first stepping clear water is intake for passing through different intake tunnels with described the second stepping washings, advance the intake tunnel of washings in the second step by washing powder box, and the first step is for directly advancing clear water to steel ladle.
4. a kind of residual method of washing powder that detects according to claim 2, it is characterized in that: judge whether to add in described the 4th step washing powder for according to the numerical value of electrical conductivity determining program b-a whether more than or equal to 100ppm, if, then represent to contain excessive washing powder in the second stepping washings, if not, then washing powder is not added in expression, or the washing powder amount of adding is in the safety standard.
5. a kind of residual method of washing powder that detects according to claim 2 is characterized in that: carry out other washing according to dirty degree in described the 4th step, other washing comprises: the interpolation washing powder washing that the rinsing that dirty degree is low and dirty degree are high.
6. a kind of residual method of washing powder that detects according to claim 2, it is characterized in that: electrical conductivity determining program in described the 7th step, if d≤c and d-a≤200ppm, then do not need to carry out again rinsing, otherwise, the rinsing of again intaking is until the electrical conductivity that detects satisfies d≤c and d-a≤200ppm.
7. one kind above-mentionedly can be detected the residual washing machine of washing powder, described washing machine comprises washtub, steel ladle, inlet pipeline, outlet pipeline and drive unit and control device, it is characterized in that: described inlet pipeline comprises primary path and bypass, primary path is communicated with steel ladle by behind the washing powder box, the cleaning solution that forms behind the water inlet dissolving washing powder enters steel ladle, bypass directly is communicated with steel ladle, is provided with in the washing machine by detecting the washings electrical conductivity to judge the whether conductivity sensor of residual washing powder of washing clothes.
8. a kind of washing machine according to claim 7, it is characterized in that: described inlet pipeline water inlet end is provided with the bilateral water intaking valve, one end connects running water inlet, the other end is provided with two controlled outlets, one outlet forms primary path by water pipe with being communicated with steel ladle after washing powder box is connected again, and the direct formation bypass that is communicated with steel ladle of water pipe is passed through in another outlet.
9. a kind of washing machine according to claim 7, it is characterized in that: described conductivity sensor is located at washing machine air chamber mouth or water discharge outlet or steel ladle inner bottom part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810176529 CN101736552B (en) | 2008-11-17 | 2008-11-17 | Method for detecting washing powder residue and washing machine |
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| CN 200810176529 CN101736552B (en) | 2008-11-17 | 2008-11-17 | Method for detecting washing powder residue and washing machine |
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| CN101736552A CN101736552A (en) | 2010-06-16 |
| CN101736552B true CN101736552B (en) | 2013-02-20 |
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| CN102331479A (en) * | 2010-07-15 | 2012-01-25 | 中国家用电器研究院 | Method for measuring rinsing performance of washing machine |
| KR20130064585A (en) * | 2011-12-08 | 2013-06-18 | 삼성전자주식회사 | Washing machine and control method thereof |
| CN103122568B (en) * | 2013-01-28 | 2015-03-25 | 合肥荣事达三洋电器股份有限公司 | Residual detection device for washing machine abstergent and detection method thereof |
| CN103487471A (en) * | 2013-10-15 | 2014-01-01 | 无锡艾科瑞思产品设计与研究有限公司 | Method for detecting whether food contains washing powder |
| JP2017006283A (en) * | 2015-06-19 | 2017-01-12 | 日立アプライアンス株式会社 | Washing machine |
| CN105088650B (en) * | 2015-08-05 | 2018-03-16 | 无锡小天鹅股份有限公司 | The control method and device of the washing machine detected based on turbidity and electrical conductivity |
| CN105063956B (en) * | 2015-08-05 | 2018-01-16 | 无锡小天鹅股份有限公司 | The control method and device of the washing machine detected based on turbidity and electrical conductivity |
| CN105088649B (en) * | 2015-08-05 | 2018-02-23 | 无锡小天鹅股份有限公司 | The control method and device of the washing machine detected based on turbidity and electrical conductivity |
| CN105177920B (en) * | 2015-08-06 | 2018-08-28 | 无锡小天鹅股份有限公司 | Washing machine and its control method |
| CN105177923B (en) * | 2015-09-02 | 2018-04-20 | 无锡小天鹅股份有限公司 | Control method, device and the washing machine of washing machine |
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| CN108950979B (en) * | 2017-05-22 | 2021-08-24 | 青岛胶南海尔洗衣机有限公司 | Control method of washing machine and washing machine |
| CN109322105B (en) * | 2017-08-01 | 2021-11-19 | 无锡小天鹅电器有限公司 | Washing machine and control method and apparatus for the same |
| CN107991291B (en) * | 2017-12-20 | 2020-04-14 | 重庆家本家科技有限公司 | Apparatus for inspecting washing machine |
| CN107938261A (en) * | 2017-12-28 | 2018-04-20 | 厦门翰普电子有限公司 | Electrolytic cell detection washing machine detergent residual device and method |
| CN110924049B (en) * | 2018-09-18 | 2022-10-28 | 青岛海尔智能技术研发有限公司 | Washing machine and control method thereof |
| CN111434830B (en) * | 2019-01-11 | 2023-03-31 | 青岛海尔洗衣机有限公司 | Washing machine and control method thereof |
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| CN113668179A (en) * | 2020-05-14 | 2021-11-19 | 惠而浦（中国）股份有限公司 | Control method of washing machine with fluorescent agent detection function and washing machine |
| CN112522907B (en) * | 2020-12-01 | 2021-12-14 | 珠海格力电器股份有限公司 | Control method for detecting foam in washing bucket and washing machine |
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Effective date of registration: 20160831 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee before: haier group corporation Patentee before: Qingdao Haier Washing Machine Co., Ltd. |