CN101424024A - Detection method and system for detecting dewatering barrel operation status in washing machine - Google Patents
Detection method and system for detecting dewatering barrel operation status in washing machine Download PDFInfo
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- CN101424024A CN101424024A CNA2008101215876A CN200810121587A CN101424024A CN 101424024 A CN101424024 A CN 101424024A CN A2008101215876 A CNA2008101215876 A CN A2008101215876A CN 200810121587 A CN200810121587 A CN 200810121587A CN 101424024 A CN101424024 A CN 101424024A
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Abstract
The invention relates to a method for detecting a working state of a dewatering barrel of a washing machine and a detection system thereof, which overcome the disadvantages that the prior art is difficult to precisely mensurate the working state of the dewatering barrel. The detection system comprises a control chip and a detection device for detecting a rotational speed signal of the dewatering barrel; the detection device is connected with the control chip and is arranged between a machine body and a dewatering barrel component; and the control chip is provided with a rotational speed setting unit for setting a setting value of the rotational speed and a working state judging unit for comparing the setting value of the rotational speed of the rotational speed setting unit with the rotational speed signal of the dewatering barrel. Through the detection system, the method for detecting the working state of the dewatering barrel of the washing machine can be realized so as to achieve the aim of accurately detecting the working state of the dewatering barrel. The detection system has the following advantages: 1. the detection system can accurately judge the working state of the dewatering barrel and has simple and reasonable judging process; 2. the detection system has reasonable design, a simple structure and high automation degree, is easy to complement, and is safe and reliable; and 3. the detection system has low equipment cost, easy operation and long service life.
Description
Technical field
The present invention relates to the detection technique field, especially relate to a kind of dewatering barrel operation status in washing machine detection method and detection system thereof.
Background technology
Washing machine is very universal, and it is that washings, washing agent and mechanical force are mutually combined, and realizes cleaning the purpose of clothing.The mechanical force of modern washing machine be exactly by motor-driven wash bucket bottom impeller with along counterclockwise alternately rotation realize driving clothing and roll, rotate, make clothing and clothing, clothing and impeller, clothing and barrel between mutual friction and reach the purpose of clean clothing mutually.In the laundry processes, the positive and negative stirring of impeller is arranged, the rotating process of dehydration barrel is also arranged.In the positive and negative stirring and the rotating process of dehydration barrel of impeller, if the user when especially child stretches into dehydration barrel with a certain position of hand or health, serious security incident will take place.
In order to improve the security performance of dehydration barrel work, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of dehydration barrel inner cap [application number: CN99247526.0] with safe locking mechanism, and it comprises dehydration barrel, inner cap, the domatic buckle, elastic plectrum, elastic plectrum connect a lock body down, it is characterized in that: the left and right sides both wings of elastic plectrum are connected with domatic buckle outer ledge, the top jug of elastic plectrum, handle is higher than the domatic buckle, and the bottom connects cassette hook-type lock, the hook face is horizontal plane or goes up oblique hook face that there is a closed guard in the outside of elastic plectrum.This device switch is flexible, and locking is firm, and when dehydration barrel was rotated, hand can not put in the bucket, can play a protective role to human body.
Though such scheme can avoid that hand can not put in the bucket when dehydration barrel is rotated, its complex structure, the manufacturing cost height, and will lock and open the dehydration barrel inner cap in use, very inconvenience operates.On the other hand, present washing machine can only be according to inferring roughly between inertial time whether dehydration barrel stops revolution, and such deduction is accurate inadequately.Whether stop revolution owing to can not accurately know dehydration barrel, so can not accurate controller cover lock.
Summary of the invention
The objective of the invention is at the problems referred to above, provide a kind of duty that can accurately judge dehydration barrel, the dewatering barrel operation status in washing machine detection method of deterministic process advantages of simple; Solve existing in prior technology and can't accurately judge the technical problem of the duty etc. of dehydration barrel.
Another object of the present invention is at the problems referred to above, provides a kind of reasonable in design, simple in structure, automaticity height, easy to implement and safe and reliable dewatering barrel operation status in washing machine checkout gear; Solved existing in prior technology and operated inadequately conveniently, automaticity is low, the technical problem that security performance is not high.
For achieving the above object, the present invention has adopted following technical proposal: this dewatering barrel operation status in washing machine detection method is characterized in that the testing process of this detection method is as follows:
Gather the tach signal of dehydration barrel by control chip by the tach signal sampling apparatus that is arranged between fuselage and the dehydration barrel assembly;
If collect the tach signal of dehydration barrel, then compare by the tach signal and the speed setting value of control chip with dehydration barrel, if do not collect the tach signal of dehydration barrel, then control chip judges that dehydration barrel is in halted state;
When the tach signal of dehydration barrel and speed setting value compared, if the rotating speed of dehydration barrel is more than or equal to speed setting value, then control chip judged that dehydration barrel is in rotation status; If the rotating speed of dehydration barrel is less than speed setting value, then control chip judges that dehydration barrel is in halted state.
By above-mentioned testing process, can obtain the duty of dehydration barrel easily exactly.The control chip here can be the main control chip of washing machine, also can be a control chip that is provided with separately.The dehydration barrel here is in the rotating speed that off position is meant dehydration barrel and stops operating less than speed setting value or dehydration barrel.
Can be not dangerous when rotating speed is extremely slow, in above-mentioned dewatering barrel operation status in washing machine detection method, described speed setting value is any tachometer value in 6 revolutions per seconds～20 revolutions per seconds.
In above-mentioned dewatering barrel operation status in washing machine detection method, described checkout gear is the magnet that is arranged on the Hall element on the body and is arranged on dehydration barrel assembly sidepiece, and the dehydration barrel revolution moves a week, and Hall element sends a tach signal to control chip.The Hall element sound construction, volume is little, and is in light weight, and the life-span is long, and is easy for installation, and power consumption is little, the frequency height, vibration resistance, the pollution or the corrosion of not being afraid of dust, greasy dirt, steam and salt fog etc. are particularly suitable for using on washing machine.
In above-mentioned dewatering barrel operation status in washing machine detection method, described checkout gear is the photoelectric sensing unit two that is arranged on the photoelectric sensing unit one on the body and is arranged on dehydration barrel assembly sidepiece, and the dehydration barrel revolution moves a week, and photoelectric sensing unit one sends a tach signal to control chip.The photoelectric sensing unit has simple in structure, low cost and other advantages.
In above-mentioned dewatering barrel operation status in washing machine detection method, described magnet or photoelectric sensing unit two are arranged on and are used to drive the line shaft sidepiece that dehydration barrel is rotated in the dehydration barrel assembly.Rocking of line shaft is little, can obtain the duty of dehydration barrel exactly.
In above-mentioned dewatering barrel operation status in washing machine detection method, control chip judges that control chip was in the lock state hood lock when dehydration barrel was in running order; Control chip judges that control chip made hood lock be in released state when dehydration barrel was in off position.
Above-mentioned dewatering barrel operation status in washing machine detection method realizes by following apparatus: the dewatering barrel operation status in washing machine detection system, be arranged between body and the dehydration barrel assembly, it is characterized in that, this detection system comprises control chip and is used to detect the checkout gear of dehydration barrel tach signal, checkout gear and control chip link and are arranged between body and the dehydration barrel assembly, described control chip has a speed setting unit that is used to set speed setting value, and one is used for speed setting unit medium speed is set value the dewatering barrel operation status judging unit that compares with the dehydration barrel tach signal.
In above-mentioned dewatering barrel operation status in washing machine checkout gear, described checkout gear is the magnet that is arranged on the Hall element on the body and is arranged on dehydration barrel assembly sidepiece.
In above-mentioned dewatering barrel operation status in washing machine checkout gear, described checkout gear is the photoelectric sensing unit two that is arranged on the photoelectric sensing unit one on the body and is arranged on dehydration barrel assembly sidepiece.
In above-mentioned dewatering barrel operation status in washing machine checkout gear, described dehydration barrel assembly comprises a line shaft, and above-mentioned magnet or photoelectric sensing unit two are arranged on the sidepiece of line shaft; Above-mentioned control chip also be connected with hood lock and can controller the locking or the release of cover lock.
Compared with prior art, the advantage of this dewatering barrel operation status in washing machine detection method and detection system thereof is: 1, can accurately judge the duty of dehydration barrel, the deterministic process advantages of simple.2, reasonable in design, simple in structure, the automaticity height, easy to implement and safe and reliable.3, equipment cost is lower, easy operating, long service life.
Description of drawings
Fig. 1 is a structural representation provided by the invention.
Fig. 2 is a course of work flow chart provided by the invention.
Among the figure, control chip 1, checkout gear 2, speed setting unit 3, dewatering barrel operation status judging unit 5, hood lock 6.
The specific embodiment
Embodiment 1:
As shown in Figure 1, this dewatering barrel operation status in washing machine detection system is arranged between body and the dehydration barrel assembly.Comprise control chip 1 and the checkout gear 2 that is used to detect the dehydration barrel tach signal, checkout gear 2 and control chip 1 link and are arranged between body and the dehydration barrel assembly.Control chip 1 has a speed setting unit 3 that is used to set speed setting value, and one is used for speed setting unit 3 medium speeds are set value the dewatering barrel operation status judging unit 5 that compares with the dehydration barrel tach signal.
Checkout gear 2 is for being arranged on the Hall element and the magnet that is arranged on dehydration barrel assembly sidepiece on the body.And the dehydration barrel revolution moves a week, and Hall element sends a tach signal to control chip.The dehydration barrel assembly comprises a line shaft, and above-mentioned magnet is arranged on the sidepiece that is used to drive the line shaft that dehydration barrel rotates; Above-mentioned control chip 1 also be connected with hood lock 6 and can controller the locking or the release of cover lock 6.
As shown in Figure 2, the testing process of dewatering barrel operation status in washing machine detection method is as follows:
Gather the tach signal of dehydration barrel by control chip by the tach signal sampling apparatus that is arranged between fuselage and the dehydration barrel assembly;
If collect the tach signal of dehydration barrel, then compare by the tach signal and the speed setting value of control chip with dehydration barrel, if do not collect the tach signal of dehydration barrel, then control chip judges that dehydration barrel is in halted state;
When the tach signal of dehydration barrel and speed setting value compared, if the rotating speed of dehydration barrel is more than or equal to speed setting value, then control chip judged that dehydration barrel is in rotation status; If the rotating speed of dehydration barrel is less than speed setting value, then control chip judges that dehydration barrel is in halted state.
Speed setting value in the present embodiment is 8 revolutions per seconds.When control chip judged that dehydration barrel is in rotation status, control chip was in the lock state hood lock.When control chip judged that dehydration barrel is in halted state, control chip made hood lock be in released state.Therefore, can effectively improve the security of washing machine.
Embodiment 2:
In the present embodiment, checkout gear 2 is for being arranged on the photoelectric sensing unit one and the photoelectric sensing unit two that is arranged on dehydration barrel assembly sidepiece on the body; And the dehydration barrel revolution moves a week, and photoelectric sensing unit one sends a tach signal to control chip.All the other all with embodiment 1 roughly the same, do not do and give unnecessary details.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as control chip 1, checkout gear 2, speed setting unit 3, dewatering barrel operation status judging unit 5, hood lock 6 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (10)
1. a dewatering barrel operation status in washing machine detection method is characterized in that, the testing process of this detection method is as follows:
Gather the tach signal of dehydration barrel by control chip by the tach signal sampling apparatus that is arranged between fuselage and the dehydration barrel assembly;
If collect the tach signal of dehydration barrel, then compare by the tach signal and the speed setting value of control chip with dehydration barrel, if do not collect the tach signal of dehydration barrel, then control chip judges that dehydration barrel is in halted state;
When the tach signal of dehydration barrel and speed setting value compared, if the rotating speed of dehydration barrel is more than or equal to speed setting value, then control chip judged that dehydration barrel is in rotation status; If the rotating speed of dehydration barrel is less than speed setting value, then control chip judges that dehydration barrel is in halted state.
2. dewatering barrel operation status in washing machine detection method according to claim 1 is characterized in that, described speed setting value is any tachometer value in 6 revolutions per seconds～20 revolutions per seconds.
3. dewatering barrel operation status in washing machine detection method according to claim 1, it is characterized in that, described checkout gear is the magnet that is arranged on the Hall element on the body and is arranged on dehydration barrel assembly sidepiece, and the dehydration barrel revolution moves a week, and Hall element sends a tach signal to control chip.
4. dewatering barrel operation status in washing machine detection method according to claim 1, it is characterized in that, described checkout gear is the photoelectric sensing unit two that is arranged on the photoelectric sensing unit one on the body and is arranged on dehydration barrel assembly sidepiece, and the dehydration barrel revolution moves a week, and photoelectric sensing unit one sends a tach signal to control chip.
5. according to claim 3 or 4 described dewatering barrel operation status in washing machine detection methods, it is characterized in that described magnet or photoelectric sensing unit two are arranged on and are used to drive the line shaft sidepiece that dehydration barrel is rotated in the dehydration barrel assembly.
6. according to any described dewatering barrel operation status in washing machine detection method in the claim 1～4, it is characterized in that control chip judges that control chip was in the lock state hood lock when dehydration barrel was in running order; Control chip judges that control chip made hood lock be in released state when dehydration barrel was in off position.
7. dewatering barrel operation status in washing machine detection system, be arranged between body and the dehydration barrel assembly, it is characterized in that, this detection system comprises control chip (1) and is used to detect the checkout gear (2) of dehydration barrel tach signal, checkout gear (2) and control chip (1) link and are arranged between body and the dehydration barrel assembly, described control chip (1) has a speed setting unit (3) that is used to set speed setting value, and one is used for speed setting unit (3) medium speed is set value the dewatering barrel operation status judging unit (5) that compares with the dehydration barrel tach signal.
8. dewatering barrel operation status in washing machine detection system according to claim 7 is characterized in that, described checkout gear (2) is for being arranged on the Hall element and the magnet that is arranged on dehydration barrel assembly sidepiece on the body.
9. dewatering barrel operation status in washing machine detection system according to claim 7 is characterized in that, described checkout gear (2) is for being arranged on the photoelectric sensing unit one and the photoelectric sensing unit two that is arranged on dehydration barrel assembly sidepiece on the body.
10. according to Claim 8 or 9 described dewatering barrel operation status in washing machine detection systems, it is characterized in that described dehydration barrel assembly comprises a line shaft, above-mentioned magnet or photoelectric sensing unit two are arranged on the sidepiece of line shaft; Above-mentioned control chip (1) also be connected with hood lock (6) and can the controller cover lock locking or the release of (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101215876A CN101424024A (en) | 2008-10-15 | 2008-10-15 | Detection method and system for detecting dewatering barrel operation status in washing machine |
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| CNA2008101215876A CN101424024A (en) | 2008-10-15 | 2008-10-15 | Detection method and system for detecting dewatering barrel operation status in washing machine |
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| CN101424024A true CN101424024A (en) | 2009-05-06 |
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| CNA2008101215876A Pending CN101424024A (en) | 2008-10-15 | 2008-10-15 | Detection method and system for detecting dewatering barrel operation status in washing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899849A (en) * | 2011-07-26 | 2013-01-30 | 日立空调·家用电器株式会社 | Double drum type washing machine |
| CN103579787A (en) * | 2012-07-25 | 2014-02-12 | 阿自倍尔株式会社 | Controlling device |
| CN106197534A (en) * | 2016-06-23 | 2016-12-07 | 安徽金帅洗衣机有限公司 | A kind of two-tub washing machine Safety Inspection method |
| CN107190461A (en) * | 2017-05-02 | 2017-09-22 | 青岛海尔洗衣机有限公司 | A kind of dehydration barrel cover lock control method and apply its washing machine |
-
2008
- 2008-10-15 CN CNA2008101215876A patent/CN101424024A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899849A (en) * | 2011-07-26 | 2013-01-30 | 日立空调·家用电器株式会社 | Double drum type washing machine |
| CN102899849B (en) * | 2011-07-26 | 2015-05-13 | 日立空调·家用电器株式会社 | Double drum type washing machine |
| CN103579787A (en) * | 2012-07-25 | 2014-02-12 | 阿自倍尔株式会社 | Controlling device |
| CN103579787B (en) * | 2012-07-25 | 2016-01-06 | 阿自倍尔株式会社 | Control device |
| CN106197534A (en) * | 2016-06-23 | 2016-12-07 | 安徽金帅洗衣机有限公司 | A kind of two-tub washing machine Safety Inspection method |
| CN107190461A (en) * | 2017-05-02 | 2017-09-22 | 青岛海尔洗衣机有限公司 | A kind of dehydration barrel cover lock control method and apply its washing machine |
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Owner name: PANASONIC HOME APPLIANCES RESEARCH DEVELOPMENT ( H Free format text: FORMER OWNER: PANASONIC ELECTRICAL RESIDENCE EQUIPMENT MACHINE ( HANGZHOU ) CO., LTD. Effective date: 20100108 |
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Effective date of registration: 20100108 Address after: -A, 3, No. 6, song Qiao Road, Hangzhou economic and Technological Development Zone, Hangzhou, Zhejiang. Postal code: 310018 Applicant after: Panasonic home appliance research and development (Hangzhou) Co., Ltd. Co-applicant after: Hangzhou Panasonic Home Appliances Co., Ltd. Address before: Joe Road No. 2 Hangzhou pine post encoding city of Zhejiang Province, Hangzhou economic and Technological Development Zone: 310018 Applicant before: Panasonic electrified residential equipment machine (Hangzhou) Co., Ltd. Co-applicant before: Hangzhou Panasonic Home Appliances Co., Ltd. |
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Open date: 20090506 |