CN102733142A - Device and method for detecting unbalance of washing machine - Google Patents
Device and method for detecting unbalance of washing machine Download PDFInfo
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- CN102733142A CN102733142A CN2012102113645A CN201210211364A CN102733142A CN 102733142 A CN102733142 A CN 102733142A CN 2012102113645 A CN2012102113645 A CN 2012102113645A CN 201210211364 A CN201210211364 A CN 201210211364A CN 102733142 A CN102733142 A CN 102733142A
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- washing machine
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- dehydration
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Abstract
The invention relates to a device for detecting the dehydration unbalance of an impeller type washing machine, and a method for detecting the dehydration unbalance by using the device. The device for detecting the unbalance comprises a suspension system which comprises a plurality of hanging rods; one end of each hanging rod is fixed in a box body of the washing machine, and the other end of each hanging rod is provided with a spring mechanism; a water accommodation cylinder of the washing machine is connected to the spring mechanisms, and is suspended; and pressure sensors are arranged below the spring mechanisms and are connected with a control system of the washing machine. The device for detecting the unbalance of the washing machine is simple in structure and sensitive in reaction, and the method for detecting the unbalance is accurate in control.
Description
Technical field
The present invention relates to a kind of uneven checkout gear of dehydration of rotary drum washing machine and use this device to detect the dehydration unbalanced method.
Technical background
Washing machine is in dehydration, if the clothing skewness, the dehydration bucket just has eccentric load, makes steel ladle squint, and the bump casing is when unbalance loading is serious even can cause the machine displacement, to machine and the bigger threat of personal safety generation.The imbalance of dehydration detection at present mainly is to realize through the switch motion of mechanical type microswitch, and after the dehydration bucket unbalance loading, steel ladle can be subjected to displacement in the dehydration barrel dehydration; Thereby displacement enough will bump against the control lever of microswitch greatly breaks off microswitch; Computer plate sense switch turn-off time, if reach the fault value turn-off time, washing machine can think that unbalance loading is serious; Will stop the dehydration and the rinsing of intaking again, correct the washings state automatically and make it to tend to balance and continue dehydration again.If do not reach the fault value turn-off time, washing machine can think that unbalance loading is not serious, and washing machine can the automatic straightening unbalance loading, will continue dehydration.But steel ladle portion dress state is inconsistent, hits a switch and has the defective that detection is too sensitive or too blunt, regulate inconvenience; Hit a wearing and tearing of switch mechanical part, distortion can reduce device reliability greatly; The washing machine of different capabilities section needs different switches that hits to mate to reach optimum efficiency because of the difference of physical dimension, and versatility is not good; In addition, before eccentric dehydration bucket stops action, hit the noise that a switch and steel ladle knock and to reach quiet effect.
Summary of the invention
To the problem of existing uneven checkout gear, the present invention provides the uneven checkout gear of washing machine and the detection method thereof of a kind of controllability height, highly versatile, and concrete technical scheme is:
The uneven checkout gear of washing machine comprises suspension, and suspension has many suspension rods; Suspension rod one end is fixed in the casing of washing machine; The other end has spring mechanism, and water tub of washing machine is connected on the spring mechanism, and steel ladle is hung; Under the spring mechanism pressure sensor is installed, pressure sensor is connected with the control system of washing machine.
The device that is provided more than utilizing, the present invention also provides following washing machine unbalance detection, and washing machine control system prestores pressure history, the pressure history of suspension when described pressure history is the washing machine normal operation; When washing machine moved, pressure sensor passed to washing machine control system with suspension rod actual loading situation, and washing machine control system is actual loading situation and the pressure history contrast that prestores, and judged whether balance movement of washing machine.
Described pressure history has cycle T and amplitude V, and cycle T characterizes the rotating speed of dehydration, and amplitude V characterizes the size of unbalance loading; The washing machine control program compares the cycle T and the amplitude V of actual loading situation and pressure history.
The present invention is during according to the uneven running of washing machine, and the stressed variation of washing machine suspension arrangement detects the washing machine operational situation.When washing machine dewaters in unbalance loading; Along with the rotation that unbalance loading is born a heavy burden, the stressed meeting of the suspension rod of suspension periodically changes, and whole stress curve is a curve with some cycles T and amplitude V during normal operation; Cycle T characterizes the rotating speed of dehydration, and amplitude V characterizes the size of unbalance loading.Washing machine is in dehydration, if the clothing skewness, the dehydration bucket just has eccentric load, and the eccentric rotation of dehydration bucket is squinted the steel ladle of suspention, actual stressed cycle, amplitude meeting and normally cycle, the amplitude of stress curve have more greatly and depart from.Washing machine controller is according to judging washing machine whether unbalance loading cycle, amplitude contrast, determines whether stopping dehydration and carries out unbalance loading and correct.
The uneven checkout gear of washing machine provided by the invention is simple in structure, is quick on the draw, and the unbalance detection control that is provided accurately.
Description of drawings
Fig. 1 is the washing machine balancing view;
Fig. 2 is a washing machine unbalance loading poised state sketch map;
Fig. 3 is suspension 3 stress curve sketch mapes;
Fig. 4 is suspension 3 assembling explosive views.
The specific embodiment
Accompanying drawings, the specific embodiment of the present invention, as shown in Figure 1; The uneven checkout gear of washing machine comprises suspension 3, and suspension 3 has 4 suspension rod 3-2; Pressure sensor 3-7 is installed on the suspension rod 3-2, and pressure sensor 3-7 is connected with the control system of washing machine.
Suspension rod 3-2 one end is fixed in the casing of washing machine, and the other end has spring mechanism, and water tub of washing machine is connected on the spring mechanism, with steel ladle 1 suspension, pressure sensor 3-7 is installed under the spring mechanism, and pressure sensor 3-7 is connected with the control system of washing machine.As shown in Figure 4, suspension rod 3-2 has suspension pin 3-1, is used to hang on casing of washing machine case angle; Be fixed with spring housing 3-3 on the suspension rod 3-2; Stage clip 3-4 is arranged in the spring housing 3-3, be connected with spring base 3-5 under the stage clip 3-4, spring base 3-5 also has a pad 3-6 down; Pad 3-6 is actively set on the suspension rod 3-2, and pressure sensor 3-7 is fixed on the pad 3-6; Steel ladle 2 is enclosed within spring housing 3-3 and upward pressure is passed to stage clip 3-4, spring base 3-5, and spring base 3-5 passes to pad 3-6 with pressure, and pressure sensor 3-7 just can sense pressure like this, is connected with washing machine control system through pressure sensor lead 3-8.
When washing machine dewatered in unbalance loading, along with the rotation that unbalance loading is born a heavy burden, the stressed meeting of the suspension rod of suspension periodically changed; The normal operation pressure history is a curve with some cycles T and amplitude V; As shown in Figure 3, cycle T characterizes the rotating speed of dehydration, and amplitude V characterizes the size of unbalance loading.
Washing machine is in dehydration; If clothing skewness; Dehydration bucket 2 just has eccentric load 4; As shown in Figure 2, the 2 eccentric rotations of dehydration bucket are squinted the steel ladle 1 of suspention, and cycle, the amplitude of stressed cycle, amplitude meeting and the normal operation pressure history of suspension reality have more greatly and depart from.Whether balance of steel ladle can be judged according to peak value size in continuous several cycles by washing machine control system, has or not and hits a risk.
Claims (3)
1. the uneven checkout gear of washing machine is characterized in that, comprises suspension; Suspension has many suspension rods, and suspension rod one end is fixed in the casing of washing machine, and the other end has spring mechanism; Water tub of washing machine is connected on the spring mechanism; With the steel ladle suspension, under the spring mechanism pressure sensor is installed, pressure sensor is connected with the control system of washing machine.
2. washing machine unbalance detection according to claim 1 is characterized in that, washing machine control system prestores pressure history, the pressure history of suspension when described pressure history is the washing machine normal operation; When washing machine moved, pressure sensor passed to washing machine control system with suspension rod actual loading situation, and washing machine control system is actual loading situation and the pressure history contrast that prestores, and judged whether balance movement of washing machine.
3. washing machine unbalance detection according to claim 2 is characterized in that, described pressure history has cycle T and amplitude V, and cycle T characterizes the rotating speed of dehydration, and amplitude V characterizes the size of unbalance loading; The washing machine control program compares the cycle T and the amplitude V of actual loading situation and pressure history.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102113645A CN102733142A (en) | 2012-06-26 | 2012-06-26 | Device and method for detecting unbalance of washing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102113645A CN102733142A (en) | 2012-06-26 | 2012-06-26 | Device and method for detecting unbalance of washing machine |
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| CN102733142A true CN102733142A (en) | 2012-10-17 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532514A (en) * | 2014-12-15 | 2015-04-22 | 南京创维电器研究院有限公司 | Impeller washing machine unbalance detection method and system |
| CN104652092A (en) * | 2013-11-25 | 2015-05-27 | 海尔集团公司 | Eccentricity detection method for full-automatic washing machine |
| CN104652093A (en) * | 2013-11-25 | 2015-05-27 | 海尔集团公司 | Washing machine with eccentric detecting function and eccentric detecting method |
| CN104846584A (en) * | 2015-04-29 | 2015-08-19 | 无锡小天鹅股份有限公司 | Washing machine and dehydration control method thereof |
| WO2016029559A1 (en) * | 2014-08-29 | 2016-03-03 | 青岛海尔洗衣机有限公司 | Suspender disengagement detection apparatus for washing machine and safe operation method for washing machine |
| CN105506923A (en) * | 2014-09-24 | 2016-04-20 | 无锡小天鹅股份有限公司 | Washing machine and imbalance detection method for same |
| CN105603689A (en) * | 2016-02-26 | 2016-05-25 | 青岛海尔科技有限公司 | Eccentricity detection method and device of pulsator washing machine, suspender system and pulsator washing machine |
| CN105714511B (en) * | 2014-12-01 | 2019-02-12 | 无锡小天鹅股份有限公司 | Washing machine and its dehydration controlling method |
| CN109881439A (en) * | 2019-03-27 | 2019-06-14 | 珠海格力电器股份有限公司 | A kind of magnetic suspension control device, roller washing machine and its magnetic suspension control method |
| CN110468557A (en) * | 2018-05-10 | 2019-11-19 | 株式会社焦点工坊 | Washing machine and rotating device |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652092A (en) * | 2013-11-25 | 2015-05-27 | 海尔集团公司 | Eccentricity detection method for full-automatic washing machine |
| CN104652093A (en) * | 2013-11-25 | 2015-05-27 | 海尔集团公司 | Washing machine with eccentric detecting function and eccentric detecting method |
| CN104652092B (en) * | 2013-11-25 | 2018-02-23 | 青岛海尔洗衣机有限公司 | A kind of eccentric detection method of automatic washing machine |
| US10323348B2 (en) | 2014-08-29 | 2019-06-18 | Qingdao Haier Washing Machine Co., Ltd. | Suspender disengagement detection apparatus for washing machine and safe operation method for washing machine |
| WO2016029559A1 (en) * | 2014-08-29 | 2016-03-03 | 青岛海尔洗衣机有限公司 | Suspender disengagement detection apparatus for washing machine and safe operation method for washing machine |
| CN105463776A (en) * | 2014-08-29 | 2016-04-06 | 青岛海尔洗衣机有限公司 | Washing machine suspender falling-off detection device and washing machine safe operation method |
| CN105463776B (en) * | 2014-08-29 | 2019-04-05 | 青岛海尔洗衣机有限公司 | A kind of washing machine sunpender falls off detection device and washing machine method for safe operation |
| CN105506923A (en) * | 2014-09-24 | 2016-04-20 | 无锡小天鹅股份有限公司 | Washing machine and imbalance detection method for same |
| CN105714511B (en) * | 2014-12-01 | 2019-02-12 | 无锡小天鹅股份有限公司 | Washing machine and its dehydration controlling method |
| CN104532514A (en) * | 2014-12-15 | 2015-04-22 | 南京创维电器研究院有限公司 | Impeller washing machine unbalance detection method and system |
| CN104846584B (en) * | 2015-04-29 | 2017-12-26 | 无锡小天鹅股份有限公司 | Washing machine and its dehydration controlling method |
| CN104846584A (en) * | 2015-04-29 | 2015-08-19 | 无锡小天鹅股份有限公司 | Washing machine and dehydration control method thereof |
| CN105603689A (en) * | 2016-02-26 | 2016-05-25 | 青岛海尔科技有限公司 | Eccentricity detection method and device of pulsator washing machine, suspender system and pulsator washing machine |
| CN105603689B (en) * | 2016-02-26 | 2019-11-08 | 青岛海尔科技有限公司 | Rotary drum washing machine eccentric detection method, device, boom system and rotary drum washing machine |
| CN110468557A (en) * | 2018-05-10 | 2019-11-19 | 株式会社焦点工坊 | Washing machine and rotating device |
| CN109881439A (en) * | 2019-03-27 | 2019-06-14 | 珠海格力电器股份有限公司 | A kind of magnetic suspension control device, roller washing machine and its magnetic suspension control method |
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Application publication date: 20121017 |