CN101736555B - Belt dropping detection method for motor of drum washing machine or washing-drying integrated machine - Google Patents
Belt dropping detection method for motor of drum washing machine or washing-drying integrated machine Download PDFInfo
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- CN101736555B CN101736555B CN 200810172285 CN200810172285A CN101736555B CN 101736555 B CN101736555 B CN 101736555B CN 200810172285 CN200810172285 CN 200810172285 CN 200810172285 A CN200810172285 A CN 200810172285A CN 101736555 B CN101736555 B CN 101736555B
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Abstract
The invention discloses a belt dropping detection method for a motor of a drum washing machine or a washing-drying integrated machine. A CUP sends pulse to adjust the conduction angle of controllable silicon so as to drive the motor to rotate according to a set rotating speed, and the relationship between the motor and the belt is judged by detecting the size of the conduction angle of the controllable silicon in the rotating process of the motor so as to judge whether the motor and the belt are connected normally. A working program of the washing machine is provided with a critical value X of the conduction angle, and the critical value corresponds to the conduction angle of the corresponding controllable silicon when the belt is connected normally and an empty drum carried by the motor rotates; when the belt is connected normally and the drum carried by the motor is fed with clothes to rotate, and when the belt drops or is broken to cause separation between the motor and the drum and independently idle rotation of the motor, the conduction angles for controlling the normal rotation of the motor under the two conditions are different; and the relationship between the motor and the belt is judged by comparing the size of the detected conduction angle with the critical value X. The method has the characteristics of low cost and correct judgment.
Description
Technical field
The present invention relates to a kind of washing machine and drive detection method, especially a kind of roller washing machine, washing-drying integral machine belt dropping detection method for motor.
Background technology
After belt dropping occurring in the roller washing machine washing process, because bucket can't rotate, will cause clothing can't wash, can't dry; And in the cylinder washing-drying integral machine drying clothes process, when belt dropping, because bucket does not rotate, clothing is piled up in bucket, not only can not dry, on the contrary because the long clothing fold that causes of heap pressure time, when serious even can make heating system produce potential safety hazard.
When belt dropping appears in the cylinder washing-drying integral machine, common solution is to judge by the variation difference that sensor detects an interior bake out temperature whether belt is normal, when bucket does not rotate, the heating tube continuous heating, the cylinder in a temperature rise rapidly, after temperature reaches a certain setting value with regard to stopped heating, this has just caused the clothing that is deposited in barrel upper strata to be easy to by hot blast drying, not only can not dry and be pressed in following clothing, and can be pressed to such an extent that wrinkle very much, bring inconvenience to the user.If sensor failure will cause the machine continuous heating simultaneously, not only clothing there is damage, also can bring potential safety hazard.
In view of this special proposition the present invention.
Summary of the invention
Whether the technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and a kind of roller washing machine, washing-drying integral machine belt dropping detection method for motor are provided, can guarantee to judge accurately belt and disconnect or come off.
For solving the problems of the technologies described above, the present invention adopts the basic conception of technical scheme to be: a kind of roller washing machine, washing-drying integral machine belt dropping detection method for motor, it is characterized in that: adjust silicon controlled angle of flow drive motors according to setting rotation speed operation thereby CPU sends out pulse, judge the relation of motor and belt by silicon controlled angle of flow size in the detection electric machine rotation process, thereby judge whether motor is connected normally with belt.
The washing machine working procedure is provided with an angle of flow critical value X, correspond to belt and connect that the motor band carries the lower corresponding controlled silicon conducting angle of empty bucket running when normal, when belt connects the normal motor band and carries bucket and add the clothing running, when causing motor to separate motor with bucket when belt dropping or disconnection to dally alone, the angle of flow that the control motor runs well in two kinds of situations is different, compare with critical value X by detected angle of flow size, thereby judge the relation of motor and belt.
Silicon controlled angle of flow when X refers to belt and connects the normal motor band and carry empty bucket running, by a large amount of tests to complete machine, this is worth in write-in program as a critical value, the angle of flow that detects under other states is worth therewith and compares, can judge whether belt and motor are connected normally, simultaneously, also can test out the not lower corresponding controlled silicon conducting angle of self running when carrying of motor, this also is a stationary value, may be defined as Y; When the angle of flow that detects in the operation process is a bit larger tham or is equaled Y, can conclude immediately that then belt connect to occur unusual, come off or disconnect.
The belt dropping detection method for motor concrete steps are: a, start working, CPU sends out the drive motors running of pulse control controllable silicon and carries out speed governing; B, reach and detect silicon controlled angle of flow Z under the stable state after setting rotating speed R; C, judge the angle of flow Z detect, and it and X value are compared, when satisfying Z X concludes that then motor is connected with belt normally; Otherwise, represent that then motor and belt work are undesired.
The undesired rear beginning fault detect of step c motor and belt work is not if Z satisfies Z〉X, judge then whether Z satisfies Y≤Z＜X, if, then represent belt dropping or disconnection, send belt dropping or disconnect reminder alarm, quit work; If not, judge then whether Z satisfies Z＜Y, if, then represent the motor speed measuring loop fault, giving the alarm quits work; If not, represent that then the Z=X motor is connected normal and the bucket clothing amount is less with belt, work on.
Described reminder alarm adopts the color tips lamp of corresponding different faults or display screen to show failure code, and/or sends different types of sound or voice prompt alarm.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
Whether the present invention can guarantee to judge accurately belt and disconnect or come off, and in time stops washing or in time stopped heating oven dry and timely call user's attention, gets rid of the hidden danger that clothing can't normally be cleaned drying in washing process; More than long-time possibility that is crumpled of piling up of clothing of getting rid of has also been got rid of the potential safety hazard that continuous heating brings in drying course.In addition, the present invention adopts the size that detects the controlled silicon conducting angle to judge that whether belt disconnects or come off, and has reduced the cost of use sensor judgment mode.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Description of drawings
Fig. 1 is electric machine speed regulation control procedure schematic diagram of the present invention;
Fig. 2 is belt of the present invention silicon controlled angle of flow schematic diagram when connecting the normal motor band and carrying empty bucket running;
Fig. 3 is belt of the present invention silicon controlled angle of flow schematic diagram when connecting the normal motor band and carrying bucket and add clothing;
Fig. 4 is the not lower corresponding controlled silicon conducting angle schematic diagram of self running when carrying of motor of the present invention;
Fig. 5 is the concrete steps schematic diagram of belt dropping detection method for motor of the present invention.
The specific embodiment
A kind of roller washing machine of the present invention, washing-drying integral machine belt dropping detection method for motor, after starting working, thereby send out pulse by washing machine master control borad CPU and adjust silicon controlled angle of flow drive motors according to setting rotation speed operation, judge the relation of motor and belt by silicon controlled angle of flow size in the detection electric machine rotation process, thereby judge whether motor is connected normally with belt.
In general, after roller washing machine or the washing-drying integral machine work, motor begins to rotate will be through the process of a unstable rotating speed, as shown in Figure 1, abscissa t represents the electric machine rotation time, ordinate rpm represents motor speed, the process of its adjustment of rotational speed when curve represents electric machine rotation, behind operation a period of time t1, motor speed begins to stablize, and rotating speed is R, A point and later stage on the corresponding diagram 1, the process that only enters stabilization of speed is just sent instruction by master control borad CPU, detects the controlled silicon conducting angle.
Process about the motor speed adjustment, also can be in order to prevent that skidding from appearring in belt, the reason that occurs skidding is that belt does not catch up with motor speed, this usually can appear at and start moment, acceleration is too fast this problem will to occur when setting, detect the angle of flow after reaching the setting stabilization of speed, and it doesn't matter to start moment, also can't detect the problem of belt creep this moment by the angle of flow; In addition, because the belt pine that long operational time causes, rotating speed can be set the rotating speed low spot, but controllable silicon can tune up an angle of flow automatically, and rotating speed just reaches has set rotating speed, and therefore, the belt pine is a bit very little on rotating speed and the impact of the silicon controlled angle of flow.If belt is pine too, rotation will come off certainly.
In addition, if stall appears in motor, rotating speed will not reach the setting rotating speed; also can only maintain slow-speed of revolution action even controllable silicon is all opened rotating speed, this moment, all energy of motor were used for heating entirely, and temperature rises very fast; directly can cause motor protecter to disconnect, quit work, give the alarm.And, stall generally can be on artificial test or computer board the electric motor loop components and parts with the appearance of staggering the time, in other situations almost there be not occurrence probability.
Extremely shown in Figure 4 such as Fig. 2, coordinate system among the figure, abscissa T represents the controlled silicon conducting angle, ordinate U represents voltage, the size of controlled silicon conducting angle when the energy that consumes when dash area represents motor rotation, shade are motor rotation in part corresponding to abscissa, X, Y are determined values, the Z value is not a determined value, and is different with how many Z values of clothing.
Judge the relation of motor and belt by silicon controlled angle of flow size in the detection electric machine rotation process, at first to establish an angle of flow critical value X in the washing machine working procedure, as shown in Figure 2, this critical value X corresponds to belt and connects that the motor band carries the lower corresponding controlled silicon conducting angle of empty bucket running when normal, when belt connects when normal the motor band and carries bucket and add the clothing running, when causing motor to separate motor with bucket when belt dropping or disconnection to dally alone, the angle of flow that the control motor runs well in two kinds of situations is different, compare with critical value X by detected angle of flow size, thereby judge the relation of motor and belt.
Silicon controlled angle of flow critical value X when belt connection normal motor band carries empty bucket running, by a large amount of tests to complete machine, the determined value that detects, the angle of flow that detects under other states is worth therewith and compares, and just can judge whether belt and motor are connected normally, simultaneously, as shown in Figure 4, also can test out the not lower corresponding controlled silicon conducting angle of self running when carrying of motor, this also is a stationary value, may be defined as Y; When the angle of flow that detects in the operation process is a bit larger tham or is equaled Y, can conclude immediately that then belt connect to occur unusual, come off or disconnect.
As shown in Figure 5, the concrete steps of belt dropping detection method for motor of the present invention are:
A, start working, CPU sends out the drive motors running of pulse control controllable silicon and carries out speed governing;
B, reach and detect silicon controlled angle of flow Z under the stable state after setting rotating speed;
C, judge the angle of flow Z detect, and it and X value are compared, when satisfying Z X concludes that then motor is connected with belt normally; Otherwise, represent that then motor and belt work are undesired.
This is the process of an adjusting to electric machine speed regulation to setting stable state rotating speed R among the step a, judges whether to reach the rotating speed R of stable state through speed governing, does not then continue to adjust if reach, until reach this rotating speed.
The undesired rear beginning fault detect of step c motor and belt work is not if Z satisfies Z〉X, judge then whether Z satisfies Y≤Z＜X, if, then represent belt dropping or disconnection, send belt dropping or disconnect reminder alarm, quit work; If not, judge then whether Z satisfies Z＜Y, if, then represent the motor speed measuring loop fault, giving the alarm quits work; If not, represent that then the Z=X motor is connected normal and the bucket clothing amount is less with belt, work on.
Certainly Z=X may represent that also the user forgets that placing in the clothing bucket is the situation of empty bucket, for this situation, while programming gives the alarm for working, after a period of time, stops alarm, and normal operation also can be controlled it by user selection and stop alarm.
Described reminder alarm adopts the color tips lamp of corresponding different faults or display screen to show failure code, and/or sends different types of sound or voice prompt alarm.
Whether the present invention can guarantee to judge accurately belt and disconnect or come off, and in time stops washing or in time stopped heating oven dry and timely call user's attention, gets rid of the hidden danger that clothing can't normally be cleaned drying in washing process; More than long-time possibility that is crumpled of piling up of clothing of getting rid of has also been got rid of the potential safety hazard that continuous heating brings in drying course.In addition, the present invention adopts the size that detects the controlled silicon conducting angle to judge that whether belt disconnects or come off, and has reduced the cost of use sensor judgment mode.
Claims (5)
1. a roller washing machine, washing-drying integral machine belt dropping detection method for motor, it is characterized in that: adjust silicon controlled angle of flow drive motors according to setting rotation speed operation thereby washing machine CPU sends out pulse, judge the relation of motor and belt by silicon controlled angle of flow size in the detection electric machine rotation process, thereby judge whether motor and belt are connected normally; The washing machine working procedure is provided with an angle of flow critical value X, correspond to belt and connect that the motor band carries the lower corresponding controlled silicon conducting angle of empty bucket running when normal, when belt connects the normal motor band and carries bucket and add the clothing running, when causing motor to separate motor with bucket when belt dropping or disconnection to dally alone, the angle of flow that the control motor runs well in two kinds of situations is different, compare with critical value X by detected angle of flow size, thereby judge the relation of motor and belt.
2. a kind of roller washing machine according to claim 1, washing-drying integral machine belt dropping detection method for motor, it is characterized in that: the washing machine working procedure is provided with an angle of flow critical value Y, correspond to the not lower corresponding controlled silicon conducting angle of self running when carrying of motor, when the angle of flow that detects in the operation process during less than X and more than or equal to Y, then conclude belt connect occur unusual.
3. a kind of roller washing machine according to claim 2, washing-drying integral machine belt dropping detection method for motor, it is characterized in that: the belt dropping detection method for motor concrete steps are: a, start working, CPU sends out the drive motors running of pulse control controllable silicon and carries out speed governing; B, reach and detect silicon controlled angle of flow Z under the stable state after setting rotating speed R; C, judge the angle of flow Z detect, and it and X value are compared, conclude then that when satisfying Z＞X motor is connected with belt normally; Otherwise, represent that then motor and belt work are undesired.
4. a kind of roller washing machine according to claim 3, washing-drying integral machine belt dropping detection method for motor, it is characterized in that: the undesired rear beginning fault detect of step c motor and belt work, if Z does not satisfy Z＞X, judge then whether Z satisfies Y≤Z＜X, if, then represent belt dropping or disconnection, send belt dropping or disconnect reminder alarm, quit work; If not, judge then whether Z satisfies Z＜Y, if, then represent the motor speed measuring loop fault, giving the alarm quits work; If not, represent that then the Z=X motor is connected normal and the bucket clothing amount is less with belt, work on.
5. a kind of roller washing machine according to claim 4, washing-drying integral machine belt dropping detection method for motor, it is characterized in that: described reminder alarm adopts the color tips lamp of corresponding different faults or display screen to show failure code, and/or sends different types of sound or voice prompt alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810172285 CN101736555B (en) | 2008-11-04 | 2008-11-04 | Belt dropping detection method for motor of drum washing machine or washing-drying integrated machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810172285 CN101736555B (en) | 2008-11-04 | 2008-11-04 | Belt dropping detection method for motor of drum washing machine or washing-drying integrated machine |
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| CN101736555A CN101736555A (en) | 2010-06-16 |
| CN101736555B true CN101736555B (en) | 2013-02-20 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5573596B2 (en) * | 2010-10-28 | 2014-08-20 | パナソニック株式会社 | Drum washing machine |
| CN102733152A (en) * | 2012-05-15 | 2012-10-17 | 海尔集团公司 | Washing machine alarm device and system and washing machine alarm processing method |
| CN104342877B (en) * | 2013-08-08 | 2018-04-06 | 博西华电器（江苏）有限公司 | Laundry machine |
| JP6106567B2 (en) * | 2013-10-02 | 2017-04-05 | シャープ株式会社 | Washing machine |
| CN104158465B (en) * | 2014-07-31 | 2017-01-25 | 松下家电研究开发（杭州）有限公司 | Motor controlling method, abnormal detecting method for motor belt of washing machine and washing machine |
| CN106149283A (en) * | 2015-04-28 | 2016-11-23 | 青岛海尔洗衣机有限公司 | Rabbling mechanism fault judgment method and washing machine during a kind of flocculation treatment |
| CN106245269A (en) * | 2015-06-11 | 2016-12-21 | 博西华电器（江苏）有限公司 | Laundry facilities and control method thereof |
| CN107630330B (en) * | 2016-07-19 | 2019-09-10 | 松下家电研究开发（杭州）有限公司 | The control method for washing machine and washing machine obtained based on belt tension |
| KR20190065151A (en) * | 2017-12-01 | 2019-06-11 | 엘지전자 주식회사 | Dryer and method for clothes |
| CN109306612A (en) * | 2017-07-28 | 2019-02-05 | 青岛海尔洗衣机有限公司 | A kind of drum rotation speed detection device, detection method and dryer |
| CN109537241B (en) * | 2017-09-21 | 2021-02-23 | 松下家电(中国)有限公司 | Belt falling detection method and washing machine |
| KR102603457B1 (en) * | 2017-12-01 | 2023-11-17 | 엘지전자 주식회사 | Dryer and method for clothes |
| CN109991561A (en) * | 2019-04-11 | 2019-07-09 | 珠海格力智能装备有限公司 | Test method and system, household electrical appliance, terminal module |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707014A (en) * | 2004-06-09 | 2005-12-14 | 乐金电子(天津)电器有限公司 | Belt wheel of drum type washing machine |
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- 2008-11-04 CN CN 200810172285 patent/CN101736555B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707014A (en) * | 2004-06-09 | 2005-12-14 | 乐金电子(天津)电器有限公司 | Belt wheel of drum type washing machine |
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Effective date of registration: 20160829 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. |