CN103122568B - Residual detection device for washing machine abstergent and detection method thereof - Google Patents
Residual detection device for washing machine abstergent and detection method thereof Download PDFInfo
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- CN103122568B CN103122568B CN201310031574.0A CN201310031574A CN103122568B CN 103122568 B CN103122568 B CN 103122568B CN 201310031574 A CN201310031574 A CN 201310031574A CN 103122568 B CN103122568 B CN 103122568B
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Abstract
The invention provides a residual detection device for washing machine abstergent and a detection method thereof. A water storage pipe is arranged on the upper end face of a water drainage pipe of an inner bucket of a washing machine, wherein the water storage pipe is communicated with the water drainage pipe. A detection device used for detecting resistance of a water solution of the water storage pipe is arranged inside the water storage pipe. An output end of the detection device is electrically connected with a program controller. A first water inlet pipe provided with a first water inlet valve and a second water inlet pipe provided with a second water inlet valve are arranged above the inner bucket of the washing machine, wherein the second water inlet pipe passes through a washing box, and the first water inlet valve and the second water inlet valve are respectively electronically with the program controller. The residual detection device for the washing machine abstergent is simple in structure and low in cost. The detection result of the detection method of the residual detection device for the washing machine abstergent is high in accuracy, stable in signals and capable of accurately judging concentration of the abstergent and judging whether residual of the abstergent is in clothes or not. Moreover, number of times of rinse can be increased according to actual conditions, so that damages, to the clothes and human bodies, of the abstergent can be reduced and the washing machine is more intelligent and humanized.
Description
Technical field
The present invention relates to washing machine technology field, be specifically related to the washing agent residue detection device on a kind of washing machine cleaning clothes and detection method thereof.
Background technology
Remove as the dirt of washing agent to clothing all adding suitable surfactant in the cleaning of clothing, clothing be at current, phase mutual friction between laundry barrel and laundry such as to clash into mutually at the mechanism that the foul be attached on clothing is departed from.After dirt on clothing is removed, along with healthy, green life idea are rooted in the hearts of the people, increasing concern is also subject to the residue problem of washing agent residual on clothing.Because clothing remains washing agent, not only injure dress material, more have certain injury to the skin of human body; Residual washing agent is considered to the one of the main reasons of bringing out human allergy at present.
Clothing in current family all adopts washing machine to clean, washing machine carries out cleaning according to the program of setting length by length, rinsing, dehydration, it can not identify the number of the amount of the washing agent added, and after judgement that more can not be clear and definite or Detection Information rinsing, whether clothing also remains washing agent.Judge washing machine cleaned after clothing on whether have the residual of washing agent, only in the airing process of clothing, it is simply judged at present, or after clothing dries, reexamines the remaining trace of washing agent on it.
Current people, in order to reduce on cleaned rear clothing the injury of residual washing agent to clothing or human body, are normally reached by the rinsing times that increases clothing or the use amount that reduces washing agent and reduce the residual of washing agent on clothing.But increase rinsing times then inevitably waste water resource and the electric energy of clothing, add use cost; And because the increase of wash number can have certain injury to clothing itself.If reduce the use amount of washing agent, the clean result of clothing can be affected, and cause clothes washing unholiness.
Summary of the invention
In order to solve above-mentioned deficiency, the invention provides a kind of residue detection device and detection method thereof of washing machine detergent.
A kind of residue detection device of washing machine detergent, comprise the sink be located at above washing machine inner tub, washing machine inner tub delivery port is connected with the drainpipe of band draining valve, described draining valve is electrically connected with the program controller of washing machine, the upper end of described drainpipe is provided with the water pipe be communicated with it, and described water pipe is between washing machine inner tub delivery port and draining valve; Described water pipe inside is provided with the checkout gear for detecting its aqueous solution resistance, and the output of described checkout gear is electrically connected with described program controller; Be provided with the first water inlet pipe of band first water intaking valve and the second water inlet pipe of band the second water intaking valve above described washing machine inner tub, described second water inlet pipe passes through sink; Described first water intaking valve, the second water intaking valve are electrically connected with described program controller respectively.
Described checkout gear is the first test probe and the second test probe, and described first test probe and the second test probe are located at top and the middle part of water pipe inside respectively.
Main Ingredients and Appearance due to washing agent comprises surfactant, auxiliary agent, filler, organized enzyme etc., owing to there being electrolyte to ionize and generation current in detergent solution, change along with the change of the electrolyte concentrations such as inorganic acid, alkali, salt or organic charged colloidal particle in solution.According to electric resistance partial pressure principle, the unit resistance of solution is less, shows that the electric conductivity of solution is stronger, so the concentration of washing agent is larger in washing machine sewer pipe, then its unit resistance is less, otherwise then larger.The present invention goes out the concentration of washing agent according to the resistance variations indirect detection of the aqueous solution in the water pipe communicated with washing machine sewer pipe, then judges whether the clothing after washing machine is cleaned there be the residual of washing agent.And then determine the need of the number of times setting up rinsing according to its resistance situation, thus reach and reduce washing agent and remain injury to clothing, human body, make the more intelligent and hommization of washing machine.
Detect the method that above-mentioned washing machine detergent is residual, comprise the following steps:
(1) open after washing machine, program controller opens the first water intake valve to after being full of water pipe, closes the first water intaking valve;
(2) the first test probe of water pipe inside and the second test probe connect the resistance circuit detecting the aqueous solution, and according to the resistance variations on testing circuit, program controller detects that the AD value that in water pipe, the voltage of water when not adding washing agent is corresponding is AD1, and store;
(3) program controller opens the second water intaking valve, is added in washing machine inner tub by the washing agent in sink and cleans clothing;
(4) carry out after last rinsing program terminates until washing machine, program controller opens draining valve, when the water in washing machine inner tub being carried out draining to reset water level, closes draining valve;
(5) open laundry machine dehydration key, clothes dewatering to water pipe is closed after being full of water;
(6) the first test probe of water pipe inside and the second test probe connect the resistance circuit detecting the aqueous solution, and according to the resistance variations on testing circuit, program controller detects that the AD value that washing machine rinsing terminates voltage in rear water pipe corresponding is AD2, and store;
(7) contrast AD1 and AD2, if AD1 and AD2 close to time, then washing machine according to cleaning procedure run dewater after terminate; If AD2 is greater than AD1, then program controller increases a rinse cycle, till AD1 and AD2 relatively after controlling laundry machine dehydration.
In described step (1), the flooding time of the first water intaking valve is 5-10 second.
In described step (5), dewatering time is 4-6 second
So the structure of this checkout gear is simple, cost is low; The precision of the result that detection method detects is high, signal stabilization; And in drainpipe after terminating according to rinsing, the resistance of the aqueous solution contrasts with the resistance of aqueous solution when not adding washing agent, thus reach in the concentration and clothing judging washing agent whether have remaining of washing agent; And can carry out increasing the number of times of rinsing according to actual conditions, reach and reduce washing agent and remain injury to clothing, human body, make the more intelligent and hommization of washing machine.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described:
Fig. 1 is structure of the detecting device schematic diagram of the present invention;
Fig. 2 is schematic block circuit diagram of the present invention;
Fig. 3 is operation principle schematic flow sheet of the present invention.
In figure: 1-first water inlet pipe, 2-second water inlet pipe, 3-sink, bucket in 4-, 5-outer barrel, 6-water pipe, 7-first test probe, 8-second test probe, 9-draining valve, 10-drainpipe, 11-first water intaking valve, 12-second water intaking valve, 13-program controller.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of residue detection device of washing machine detergent, washing machine is made up of outer barrel 5 and interior bucket 4, sink 3 is provided with above interior bucket 4, interior bucket 4 delivery port is connected with the drainpipe 10 of band draining valve 9, described draining valve 9 is electrically connected with the program controller 13 of washing machine, and the upper end of described drainpipe 10 is provided with the water pipe 6 be communicated with it, and described water pipe 6 is between interior bucket 4 delivery port and draining valve 9; The top of described water pipe 6 inside and middle part are respectively equipped with the first test probe 7 and the second test probe 8 for detecting its aqueous solution resistance, and described first test probe 7 is electrically connected with program controller 13 with the output of the second test probe 8; Be provided with the first water inlet pipe 1 of band first water intaking valve 11 and the second water inlet pipe 2 of band the second water intaking valve 12 above described interior bucket 4, described second water inlet pipe 2 is by sink 3; Described first water intaking valve 11, second water intaking valve 12 is electrically connected with described program controller 13 respectively.
As shown in Figure 3, the method for detecting residue of washing machine detergent, comprises the following steps:
(1) open after washing machine, program controller opened for first water intake valve 5-10 second, after being full of water pipe, closed the first water intaking valve;
(2) the first test probe of water pipe inside and the second test probe connect the resistance circuit detecting the aqueous solution, and according to the resistance variations on testing circuit, program controller detects that the AD value that in water pipe, the voltage of water when not adding washing agent is corresponding is AD1, and store;
(3) program controller opens the second water intaking valve, is added in washing machine inner tub by the washing agent in sink and cleans clothing;
(4) carry out after last rinsing program terminates until washing machine, program controller opens draining valve, when the water in washing machine inner tub being carried out draining to reset water level, closes draining valve;
(5) open laundry machine dehydration key, clothes dewatering is closed for 5 seconds after water pipe is full of water;
(6) the first test probe of water pipe inside and the second test probe connect the resistance circuit detecting the aqueous solution, and according to the resistance variations on testing circuit, program controller detects that the AD value that washing machine rinsing terminates voltage in rear water pipe corresponding is AD2, and store;
(7) contrast AD1 and AD2, if AD1 and AD2 close to time, then washing machine according to cleaning procedure run dewater after terminate; If AD2 is greater than AD1, then program controller increases a rinse cycle, till AD1 and AD2 relatively after controlling laundry machine dehydration.
Above embodiment is not limited only to protection scope of the present invention, all modify based on basic thought of the present invention or change all belong to protection scope of the present invention.
Claims (4)
1. the residue detection device of a washing machine detergent, comprise the sink be located at above washing machine inner tub, washing machine inner tub delivery port is connected with the drainpipe of band draining valve, described draining valve is electrically connected with the program controller of washing machine, it is characterized in that: the upper end of described drainpipe is provided with the water pipe be communicated with it, described water pipe is between washing machine inner tub delivery port and draining valve; Described water pipe inside is provided with the checkout gear for detecting its aqueous solution resistance, and the output of described checkout gear is electrically connected with described program controller; Be provided with the first water inlet pipe of band first water intaking valve and the second water inlet pipe of band the second water intaking valve above described washing machine inner tub, described second water inlet pipe passes through sink; Described first water intaking valve, the second water intaking valve are electrically connected with described program controller respectively; Described checkout gear detects washing agent by following method and remains:
(1) open after washing machine, program controller opens the first water intake valve to after being full of water pipe, closes the first water intaking valve;
(2) checkout gear of water pipe inside connects the resistance circuit detecting the aqueous solution, and according to the resistance variations on testing circuit, program controller detects that the AD value that in water pipe, the voltage of water when not adding washing agent is corresponding is AD1, and store;
(3) program controller opens the second water intaking valve, is added in washing machine inner tub by the washing agent in sink and cleans clothing;
(4) carry out after last rinsing program terminates until washing machine, program controller opens draining valve, when the water in washing machine inner tub being carried out draining to reset water level, closes draining valve;
(5) open laundry machine dehydration key, clothes dewatering to water pipe is closed after being full of water;
(6) checkout gear of water pipe inside is connected and is detected the resistance circuit of the aqueous solution, and according to the resistance variations on testing circuit, program controller detects that the AD value that washing machine rinsing terminates voltage in rear water pipe corresponding is AD2, and store;
(7) contrast AD1 and AD2, if AD1 and AD2 close to time, then washing machine according to cleaning procedure run dewater after terminate; If AD2 is greater than AD1, then program controller increases a rinse cycle, till AD1 and AD2 relatively after controlling laundry machine dehydration.
2. the residue detection device of washing machine detergent according to claim 1, it is characterized in that: described checkout gear is the first test probe and the second test probe, and described first test probe and the second test probe are located at top and the middle part of water pipe inside respectively.
3. the residue detection device of washing machine detergent according to claim 1, is characterized in that: in described step (1), the flooding time of the first water intaking valve is 5-10 second.
4. the residue detection device of washing machine detergent according to claim 1, is characterized in that: in described step (5), dewatering time is 4-6 second.
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| CN201310031574.0A CN103122568B (en) | 2013-01-28 | 2013-01-28 | Residual detection device for washing machine abstergent and detection method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110552155B (en) * | 2015-12-25 | 2021-09-07 | 东芝生活电器株式会社 | Washing machine |
| 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 |
| CN110093750A (en) * | 2019-05-10 | 2019-08-06 | 苏州博学智能科技有限公司 | A kind of intelligent washing machine washing methods of the self-service addition detergent function of band |
| CN112813646B (en) * | 2019-11-18 | 2024-09-13 | 青岛海尔洗衣机有限公司 | Control method for washing equipment |
| CN113684645B (en) * | 2020-05-19 | 2024-05-28 | 佛山市顺德海尔电器有限公司 | Control method of washing machine and washing machine |
| CN114351405A (en) * | 2020-10-13 | 2022-04-15 | 青岛海尔洗衣机有限公司 | Washing machine control method and device, storage medium and washing machine |
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| CN101736552A (en) * | 2008-11-17 | 2010-06-16 | 海尔集团公司 | Method for detecting washing powder residue and washing machine |
| CN102199856A (en) * | 2010-03-26 | 2011-09-28 | 松下电器产业株式会社 | Washing machine |
| CN203096432U (en) * | 2013-01-28 | 2013-07-31 | 合肥荣事达三洋电器股份有限公司 | Detergent residue detection device of washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100479100B1 (en) * | 2002-11-28 | 2005-03-28 | 엘지전자 주식회사 | Washing machine and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101353853A (en) * | 2008-08-26 | 2009-01-28 | 深圳和而泰智能控制股份有限公司 | Washing machine and washing method thereof, water cleanness detection device and method |
| CN101736552A (en) * | 2008-11-17 | 2010-06-16 | 海尔集团公司 | Method for detecting washing powder residue and washing machine |
| CN102199856A (en) * | 2010-03-26 | 2011-09-28 | 松下电器产业株式会社 | Washing machine |
| CN203096432U (en) * | 2013-01-28 | 2013-07-31 | 合肥荣事达三洋电器股份有限公司 | Detergent residue detection device of washing machine |
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Owner name: WHIRLPOOL (CHINA) CO., LTD. Free format text: FORMER NAME: HEFEI RONGSHIDA SANYO ELECTRIC CO., LTD. |
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Address after: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Patentee after: Whirlpool (China) Limited by Share Ltd Address before: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Patentee before: Hefei Rongshida Sanyo Electric Co., Ltd. |