CN101424027B - Detection method and system for detecting apparatus operation status in washing machine - Google Patents
Detection method and system for detecting apparatus operation status in washing machine Download PDFInfo
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- CN101424027B CN101424027B CN 200810121585 CN200810121585A CN101424027B CN 101424027 B CN101424027 B CN 101424027B CN 200810121585 CN200810121585 CN 200810121585 CN 200810121585 A CN200810121585 A CN 200810121585A CN 101424027 B CN101424027 B CN 101424027B
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Abstract
The invention relates to a method for detecting a working state of a detection device of a washing machine and a detection system thereof, which solve the technical problems that the prior art has poor safety and the like. The detection system comprises a detection device and a control chip; the detection device is arranged between a washing machine body and a power shaft; the detection device and a motor are connected with the control chip respectively; and the control chip is provided with an abnormity timer and a comparer for the opening time and the closing time of the motor. The detection system has the following advantages: 1. the detection system can effectively judge whether the detection device operates normally, thereby ensuring that the washing machine can accurately judge the operating state of a dewatering barrel so as to remove the potential safety hazard possibly existing in the using process by users; 2. the whole detection process is very simple and is easy to implement and popularize; and 3. the detection system has a simple structure and easy implementation and is very convenient to operate and use.
Description
Technical field
The present invention relates to the detection technique field, especially relate to checkout gear working state detecting method and detection system in a kind of washing machine.
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 security performance, 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 puts 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.
The somebody has invented a kind of motor speed measuring device [application number: 200610015729] of washing machine, speed measuring device is installed in an end of motor shaft, it comprises magnet and plastic bushing, magnet is toroidal, inside at the annulus of magnet forms lining, lining is toroidal, 12～16 flanges of uniform formation on the inner surface of the annulus of lining.Lining and flange are made of plastics, magnet, lining and flange single injection-molded, formation one.Though this device can detect rotating speed of motor, can't guarantee that speed measuring device is in normal operating conditions all the time.Obviously,, then can not get rid of the possibility that motor speed is had the erroneous judgement running status, have bigger potential safety hazard if the running normality of speed measuring device is not judged.
Summary of the invention
The objective of the invention is at the problems referred to above, provide a kind of and can effectively get rid of potential safety hazard, checkout gear working state detecting method in the easy to implement and washing machine promoted; Solved the relatively poor technical problem of existing in prior technology security performance.
Another object of the present invention is at the problems referred to above, provides a kind of reasonable in design, simple in structure, easy operating, checkout gear working state detection device in the safe and reliable washing machine; Solve the existing in prior technology complex structure, be difficult to operation, the technical problem of the relatively poor grade of security.
For achieving the above object, the present invention has adopted following technical proposal: checkout gear working state detecting method in this washing machine is characterized in that the testing process of this detection method is as follows:
When washing machine is worked,, gather the working state signal of motor simultaneously by the feedback signal of control chip collecting and detecting device;
When control chip should collect the feedback signal of checkout gear and when not collecting, unusual timer picks up counting;
When control chip collects the feedback signal of checkout gear in the unusual predefined timing range of timer, unusual timer zero clearing;
When control chip did not collect the feedback signal of checkout gear yet in the unusual predefined timing range of timer, control chip compared motor working time and shut-in time in above-mentioned predefined timing range;
If working time of motor is less than or equal to the shut-in time, then unusual timer zero clearing, if the working time of motor greater than the shut-in time, then control chip produces and makes the out-of-work signal of washing machine.
By this detection method, when can detect in time when unusual appears in checkout gear, make washing machine out of service, improved security performance effectively.The timing range here is predefined according to actual conditions, and generally the state of washing machine is determined timing range when just starting.The working state signal of motor is meant machine operation time signal and motor shut-in time signal.
In above-mentioned washing machine in the checkout gear working state detecting method, described checkout gear is the magnet that is arranged on the Hall element on the washing machine body and is arranged on the line shaft sidepiece of dehydration barrel, and the line shaft revolution moves a week, and Hall element sends the feedback signal of a checkout gear to control chip.
When checkout gear is in normal operating conditions, the moving circle of line shaft revolution, Hall element promptly sends the feedback signal of a checkout gear to control chip.If during the feedback signal that control chip promptly can't receiving detection device, then might have fault.
In the checkout gear working state detecting method, described predefined timing range is 0.1～8 second in above-mentioned washing machine.
In the checkout gear working state detecting method, described control chip sends the alarm of checkout gear operation irregularity when generation makes the out-of-work signal of washing machine in above-mentioned washing machine.
When washing machine quits work because of the checkout gear fault, can remind the user by the alarm of checkout gear operation irregularity, so that in time deal with.
The checkout gear working state detecting method is realized by following detection system in the above-mentioned washing machine: checkout gear duty detection system in the washing machine, be arranged between washing machine body and the dehydration barrel line shaft, it is characterized in that, this detection system comprises checkout gear and control chip, checkout gear is arranged between washing machine body and the line shaft, described checkout gear all is connected with control chip with motor, and described control chip has unusual timer and motor opens and closes the time comparator.
In above-mentioned washing machine in the checkout gear duty detection system, described checkout gear comprises Hall element and magnet, Hall element is arranged on the washing machine body, magnet be arranged on the line shaft sidepiece of dehydration barrel and when line shaft rotates a circle Hall element can meet once with magnet, above-mentioned Hall element is connected with control chip.The checkout gear here can adopt multiple other schemes.
In above-mentioned washing machine, in the checkout gear duty detection system, also be connected with warning device on the described control chip.
In the checkout gear duty detection system, described control chip also has the timing range setting device in above-mentioned washing machine, and unusual timer is connected with the timing range setting device.Can change timing range easily by the timing range setting device.
Compared with prior art, whether the advantage of checkout gear working state detecting method and detection system in this washing machine: it is working properly 1, to judge checkout gear effectively if being, thereby the function of guaranteeing to do washing is correctly judged the running status of dehydration barrel, to eliminate the potential safety hazard that the user in use may exist.2, whole testing process is very simple, easy to implement and popularization.3, simple in structure, easy to implement, manipulate very convenient.
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, line shaft 1, checkout gear 2, Hall element 21, magnet 22, control chip 4, motor 5, unusual timer 6, motor open and close time comparator 7, warning device 9, timing range setting device 10.
The specific embodiment
As shown in Figure 1, checkout gear duty detection system is arranged between washing machine body and the dehydration barrel line shaft 1 in this washing machine.It comprises parts such as checkout gear 2 and control chip 4.
Checkout gear 2 is arranged between washing machine body and the line shaft 1.Wherein checkout gear 2 comprises Hall element 21 and magnet 22, and Hall element 21 is arranged on the washing machine body, magnet 22 be arranged on dehydration barrel line shaft 1 sidepiece and when line shaft 1 rotates a circle Hall element 21 can meet once with magnet 22.Above-mentioned Hall element 21 is connected with control chip 4, also is connected with warning device 9 on control chip 4.Checkout gear 2 all is connected with control chip 4 with motor 5.Control chip 4 has unusual timer 6, motor opens and closes time comparator 7 and timing range setting device 10.Unusual timer 6 is connected with timing range setting device 10.
As shown in Figure 2, the testing process of checkout gear working state detecting method is as follows in this washing machine:
At first setting timing range by timing range setting device 10 was 6 seconds.When washing machine is worked,, gather the working state signal of motor 5 simultaneously by the feedback signal of control chip 4 collecting and detecting devices 2.Wherein checkout gear 2 is for being arranged on the Hall element 21 and the magnet 22 that is arranged on line shaft 1 sidepiece of dehydration barrel on the washing machine body, and when line shaft 1 revolution moves a week, Hall element 21 can meet once with magnet 22, and just Hall element 21 sends the feedback signal of a checkout gear 2 to control chip 4.When control chip 4 should collect the feedback signal of checkout gear 2 and when not collecting, unusual timer 6 picks up counting.When control chip 4 collects the feedback signal of checkout gear 2 once more in unusual timer 6 predefined timing ranges, unusual timer 6 zero clearings.When control chip 4 when unusual timer does not collect the feedback signal of checkout gear 2 in the timing range 6 predefined 6 seconds yet, 4 pairs of motors 5 of control chip working time and shut-in time in above-mentioned predefined timing range compare.If working time of motor 5 is less than or equal to the shut-in time, then unusual timer 6 zero clearings, if the working time of motor 5 greater than the shut-in time, then control chip 4 produces and makes the out-of-work signal of washing machine.
For the ease of in time finding fault, control chip 4 sends checkout gear 2 operation irregularity alarms by warning device 9 when generation makes the out-of-work signal of washing machine, so that in time remind the user.
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 line shaft 1, checkout gear 2, Hall element 21, magnet 22, control chip 4, motor 5, unusual timer 6, motor to open and close terms such as time comparator 7, warning device 9, timing range setting device 10 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 (8)
1. checkout gear working state detecting method in the washing machine is characterized in that the testing process of this detection method is as follows:
When washing machine is worked,, gather the working state signal of motor simultaneously by the feedback signal of control chip collecting and detecting device;
When control chip should collect the feedback signal of checkout gear and when not collecting, unusual timer picks up counting;
When control chip collects the feedback signal of checkout gear in the unusual predefined timing range of timer, unusual timer zero clearing;
When control chip did not collect the feedback signal of checkout gear yet in the unusual predefined timing range of timer, control chip compared motor working time and shut-in time in above-mentioned predefined timing range;
If working time of motor is less than or equal to the shut-in time, then unusual timer zero clearing, if the working time of motor greater than the shut-in time, then control chip produces and makes the out-of-work signal of washing machine.
2. checkout gear working state detecting method in the washing machine according to claim 1, it is characterized in that, described checkout gear is the magnet that is arranged on the Hall element on the washing machine body and is arranged on the line shaft sidepiece of dehydration barrel, and the line shaft revolution moves a week, and Hall element sends the feedback signal of a checkout gear to control chip.
3. checkout gear working state detecting method in the washing machine according to claim 1 is characterized in that, described predefined timing range is 0.1～8 second.
4. according to checkout gear working state detecting method in claim 1 or the 2 or 3 described washing machines, it is characterized in that described control chip sends the alarm of checkout gear operation irregularity when generation makes the out-of-work signal of washing machine.
5. checkout gear duty detection system in the washing machine, be arranged between washing machine body and the dehydration barrel line shaft (1), it is characterized in that, this detection system comprises checkout gear (2) and control chip (4), checkout gear (2) is arranged between washing machine body and the line shaft (1), described checkout gear (2) all is connected with control chip (4) with motor (5), and described control chip (4) has unusual timer (6) and motor opens and closes time comparator (7).
6. checkout gear duty detection system in the washing machine according to claim 5, it is characterized in that, described checkout gear (2) comprises Hall element (21) and magnet (22), Hall element (21) is arranged on the washing machine body, magnet (22) be arranged on line shaft (1) sidepiece of dehydration barrel and when line shaft (1) rotates a circle Hall element (21) can meet once with magnet (22), above-mentioned Hall element (21) is connected with control chip (4).
7. checkout gear duty detection system is characterized in that in the washing machine according to claim 5, also is connected with warning device (9) on the described control chip (4).
8. according to checkout gear duty detection system in claim 5 or the 6 or 7 described washing machines, it is characterized in that, described control chip (4) also has timing range setting device (10), and unusual timer (6) is connected with timing range setting device (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810121585 CN101424027B (en) | 2008-10-15 | 2008-10-15 | Detection method and system for detecting apparatus operation status in washing machine |
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| CN 200810121585 CN101424027B (en) | 2008-10-15 | 2008-10-15 | Detection method and system for detecting apparatus operation status in washing machine |
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| CN101424027A CN101424027A (en) | 2009-05-06 |
| CN101424027B true CN101424027B (en) | 2010-07-21 |
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| KR20100088986A (en) * | 2009-02-02 | 2010-08-11 | 엘지전자 주식회사 | Controlling apparatus of washing machine and method the same |
| CN108338768A (en) * | 2018-04-23 | 2018-07-31 | 佛山市旅行青蛙科技有限公司 | A kind of self-powered dish washer |
| CN114318766B (en) * | 2022-01-04 | 2024-03-01 | 海信冰箱有限公司 | Fault detection method and device based on vibration device and readable storage medium |
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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: 20091204 |
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Effective date of registration: 20091204 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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Effective date of registration: 20210208 Address after: 310018 No.2, Songqiao street, Hangzhou Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: PANASONIC HOME APPLIANCES (CHINA) Co.,Ltd. Patentee after: Hangzhou Matsushita Household Appliances Co.,Ltd. Address before: 310018 building 3-A, No.6 Songqiao Road, Hangzhou Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: PANASONIC HOME APPLIANCES R&D CENTER (HANGZHOU) Co.,Ltd. Patentee before: Hangzhou Matsushita Household Appliances Co.,Ltd. |