CN1715486A - Control method for dewatering of drum washing machine - Google Patents
Control method for dewatering of drum washing machine Download PDFInfo
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- CN1715486A CN1715486A CN 200410019751 CN200410019751A CN1715486A CN 1715486 A CN1715486 A CN 1715486A CN 200410019751 CN200410019751 CN 200410019751 CN 200410019751 A CN200410019751 A CN 200410019751A CN 1715486 A CN1715486 A CN 1715486A
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Abstract
The present invention relates to dewatering control method for drum type washing machine. The dewatering eccentric amount is once more detected in the resonance domain, and the drum type washing machine is controlled based on the detection result. The control method of drum type washing machine has the first eccentric detection stage, and the eccentric amount detected in the first eccentric detection stage is eccentric amount when the rotation speed is lower than that of the resonance domain. When the dewatering rotation speed is within the resonance domain, the eccentric amount is further measured and the measured result is used in determining whether to perform the dewatering operation.
Description
Technical field
The present invention relates to a kind of tumbling-box washing machine.Offset when the present invention dewaters by detecting again in resonance domain, and, improve the stability of system according to above-mentioned testing result control dewatering speed.
Background technology
Fig. 1 is the roller washing machine structural representation.Roller washing machine is that washings and washings are being put under the state of cylinder, and the power by motor rotates by cylinder, the household appliances that utilize the frictional force of cylinder and washings to wash.When washing by roller washing machine, can damage washings hardly, washings can not tangle mutually, and the effect that can also be rubbed, pat.
As shown in Figure 2, when traditional roller washing machine dewaters, the rotating speed of cylinder is brought up to rotating speed of target (rpm), behind the arrival rotating speed of target, by identical rotating speed rotation certain hour.During dehydration,, the washings in the cylinder can influence the rotating speed of cylinder if producing off-centre.Detect the offset of washings during the rotating speed rotation according to target of traditional roller washing machine according to the variable quantity of above-mentioned drum rotation speed.When if offset exceeds certain limit, stop to restart motor after the work of motor, be in certain limit up to offset and just can dewater with interior.
But there are the following problems for traditional dehydration controlling method.
In traditional control method, the result that the dehydration initial stage is detected when rotating with rotating speed of target if offset is in the normal range (NR), then improves dewatering speed and carries out formal dewatering operation.But when reaching the resonance domain velocity interval after dewatering speed improves, it is big that above-mentioned offset might become again.
Under this situation, can produce excessive vibration and noise, cause the stability decreases of system.
Such as, capacity is in the roller washing machine of 10kg, even the offset that detects under the speed with 100rpm (revolution perminute) is smaller, but when rotating speed was brought up to resonance domain velocity interval 170rpm ~ 250rpm, it is very big that offset might become.
That is, traditional dehydration controlling method detects offset when beginning to dewater, and improve rotating speed and dewater if offset is in the normal range (NR), but the offset that can not find resonance domain increases.
Summary of the invention
The present invention proposes in order to address the above problem.The offset of resonance domain when its purpose is dewatered for passing through to detect, index drum washing machine, the stability of a system of raising roller washing machine.
The roller washing machine control method that the present invention relates to has the eccentricity detecting stage the 1st time.The offset that detects of the 1st eccentricity detecting stage is the offset of rotating speed during less than the resonance domain rotating speed.In order to achieve the above object, roller washing machine control method of the present invention rotating speed when dewatering is under the situation of resonance domain scope, remeasures offset, and whether carries out dewatering operation by the measurement result decision.
In order to achieve the above object, another roller washing machine control method of the present invention comprises following several stages.Carry out the 1st time when dewatering and detect offset, and control the stage of dewatering speed according to above-mentioned offset by certain rotating speed.The offset in above-mentioned stage is normal, improves dehydrating speed, after rotating speed reaches the resonance domain range of speeds, and the stage of before formally dewatering, again offset being detected.Offset under the testing result in the 1st eccentricity detecting stage and the resonance domain rotating speed is compared, calculate the stage of difference.Whether the difference decision of calculating according to the above-mentioned stage carries out the stage of dewatering operation.
Also can draw data, and washing machine be controlled the testing result in the 1st eccentricity detecting stage divided by the offset under the resonance domain rotating speed according to above-mentioned data.That is, the present invention also can use above-mentioned control method, substitutes above-mentioned offset under the testing result in the 1st eccentricity detecting stage and the resonance domain rotating speed to be compared, and calculates difference, the method that washing machine is controlled.
In sum, detect the offset that produces in the resonance domain before roller washing machine of the present invention formally dewaters earlier.
That is, the present invention detects offset in resonance domain after,, or, control the dewatering speed when formally dewatering, can improve the stability of system according to the offset of the 1st detection and the difference of resonance domain offset etc. according to above-mentioned offset.
Description of drawings
Fig. 1 is the roller washing machine structural representation.
Fig. 2 is in the conventional washer, and dewatering speed in time concerns schematic diagram.
Fig. 3 is in the washing machine of the present invention, and dewatering speed in time concerns schematic diagram.
The specific embodiment
Below, with reference to Fig. 3, offset detection method of the present invention and dehydration controlling method embodiment are elaborated.
Fig. 3 is in the washing machine of the present invention, and dewatering speed in time concerns schematic diagram.The offset that the roller washing machine control method that the present invention relates to detects during less than the resonance domain rotating speed at dehydrating speed, and according to above-mentioned offset control dewatering speed.On the basis of above-mentioned control method, when control method of the present invention reaches resonance domain speed at dehydrating speed, detect offset again, and whether carry out dewatering operation according to above-mentioned testing result decision.
That is, the offset testing result of resonance domain is suspended dewatering operation when offset is excessive, restarts after allowing cylinder stop the rotation, and restarts dewatering operation.If above-mentioned testing result offset is less, then continue to improve dehydrating speed.
Here, though above-mentioned resonance domain change to some extent by roller washing machine kind and shape,, all there is above-mentioned resonance domain in any roller washing machine.Thereby there is the above resonance point of at least one commentaries on classics in the above-mentioned resonance domain.
Such as, resonance point is present in 170rpm between the 250rpm in the roller washing machine of 10kg capacity.And the rotating speed when formally dewatering is more than the 300rpm.
In addition, the detection of above-mentioned offset is undertaken by the mode that the rotating speed amplitude of fluctuation is added up.Above-mentioned offset detects and is at the uniform velocity carrying out under the rotation status.
Embodiments of the invention, the offset that can find in the resonance domain changes, and dewatering operation is controlled.
That is, dehydration controlling method originally detects the amount of ceasing to be faithful when beginning to carry out dewatering operation, improves dewatering speed at above-mentioned offset during for normal value, dewaters.Therefore, the offset that can not find in the resonance domain of original dehydration controlling method changes.
But, in the embodiments of the invention,, also in resonance domain, detect offset again even the offset at dehydration initial stage is in range of normal value, can tackle the deflection amount that produces in the resonance domain increases.
Such as, capacity is in the roller washing machine of 10kg, even the offset that detects under the speed with 100rpm (revolution perminute) is smaller, but when rotating speed is brought up to resonance domain velocity interval 170rpm-250rpm, it is very big that offset might become, and causes system's instability.But the present invention detects the offset in the resonance domain, and when offset arrival certain value is above, suspends dewatering operation, restarts the stroke that dewaters, and can prevent that locking system carries out work under unsure state.
The offset that detects of the 1st eccentricity detecting stage is the offset of rotating speed during less than the resonance domain rotating speed.Afterwards, the offset that detects in the time period (the rotating speed height the when rotating ratio of this time period carries out the 1st offset detection) that has by the rotation of resonance domain rotating speed.
By pressing the rotating speed dehydration of resonance domain, in the resonance domain that when dehydration of 2 secondary segments and the dehydration of 3 secondary segments, exists, can measure offset more exactly.
Below, another embodiment describes to dehydration controlling method of the present invention.
In the another embodiment of the present invention, carry out the 1st offset when dewatering and detect by certain rotating speed, and according to above-mentioned offset control dewatering speed.
Here, offset is normal, improve dehydrating speed after, in resonance domain, detect offset before formally dewatering again, and with above-mentioned the 1st offset detection-phase in the offset measured compare, draw difference.
Then, whether formally dewater according to the difference decision that obtains.
Here, though above-mentioned resonance domain change to some extent by roller washing machine kind and shape,, all there is above-mentioned resonance domain in any roller washing machine.
Also can substitute said method with following control method.Promptly the testing result in the 1st eccentricity detecting stage divided by the offset under the resonance domain rotating speed, draw data, and washing machine controlled according to above-mentioned data.
Claims (7)
1, a kind of roller washing machine control method comprises the eccentricity detecting stage the 1st time, and the offset that detects of the 1st eccentricity detecting stage is the offset of rotating speed during less than the resonance domain rotating speed; It is characterized in that:
When dewatering, remeasure offset in the resonance domain, and whether carry out dewatering operation by the measurement result decision.
2, tumbling-box washing machine control method according to claim 1 is characterized in that: have the above resonance point of at least one commentaries on classics in the resonance domain before the above-mentioned formal dehydration.
3, tumbling-box washing machine control method according to claim 1 and 2, it is characterized in that, comprise: the 1st time the offset testing process has by the rotation of resonance domain rotating speed, the time period of dewatering, the rotating speed height the when rotating ratio of this time period carries out the 1st offset detection.
4, a kind of tumbling-box washing machine control method is characterized in that, comprising:
Carry out the 1st time when dewatering and detect offset, and control the stage of dewatering speed according to above-mentioned offset by certain rotating speed;
The offset in above-mentioned stage is normal, improves dehydrating speed, after rotating speed reaches the resonance domain range of speeds, and the stage of before formally dewatering, again offset being detected;
Offset under the testing result in the 1st eccentricity detecting stage and the resonance domain rotating speed is compared, calculate the stage of difference;
Whether the difference decision of calculating according to the above-mentioned stage carries out the stage of dewatering operation.
5, a kind of tumbling-box washing machine control method is characterized in that:
Carry out the 1st time when dewatering and detect offset, and control the stage of dewatering speed according to above-mentioned offset by certain rotating speed;
The offset in above-mentioned stage is normal, improves dehydrating speed, after rotating speed reaches the resonance domain range of speeds, and the stage of before formally dewatering, again offset being detected;
Divided by the offset under the resonance domain rotating speed in the stage of the testing result in the 1st eccentricity detecting stage;
Whether the difference decision of calculating according to the above-mentioned stage carries out the stage of dewatering operation.
6, according to claim 4 or 5 described tumbling-box washing machine control methods, it is characterized in that:
The offset of above-mentioned resonance domain, the method for speed amplitude of variation detects when rotating by the cylinder that adds up.
7, tumbling-box washing machine control method according to claim 6 is characterized in that: the detection of above-mentioned drum rotation speed amplitude of fluctuation is carried out at the uniform velocity rotating section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100197514A CN100519882C (en) | 2004-06-28 | 2004-06-28 | Control method for dewatering of drum washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100197514A CN100519882C (en) | 2004-06-28 | 2004-06-28 | Control method for dewatering of drum washing machine |
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| Publication Number | Publication Date |
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| CN1715486A true CN1715486A (en) | 2006-01-04 |
| CN100519882C CN100519882C (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100197514A Expired - Fee Related CN100519882C (en) | 2004-06-28 | 2004-06-28 | Control method for dewatering of drum washing machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242483A (en) * | 2011-06-15 | 2011-11-16 | 海尔集团公司 | Dewatering control method for washing machine |
| CN102575409A (en) * | 2009-08-27 | 2012-07-11 | Lg电子株式会社 | Control method of laundry machine |
| CN105734889A (en) * | 2014-12-09 | 2016-07-06 | 无锡小天鹅股份有限公司 | Drum-type washing machine and dewatering method thereof |
| CN106661801A (en) * | 2014-10-30 | 2017-05-10 | 松下知识产权经营株式会社 | Drum-type washing machine |
| CN110016784A (en) * | 2019-05-09 | 2019-07-16 | 深圳和而泰智能控制股份有限公司 | The control method and device of washing machine |
| CN110894659A (en) * | 2018-09-11 | 2020-03-20 | 无锡小天鹅电器有限公司 | Control method and device of washing machine, machine readable storage medium and washing machine |
| CN113249928A (en) * | 2020-02-10 | 2021-08-13 | 青岛海尔洗衣机有限公司 | Dehydration control method of clothes treatment equipment and clothes treatment equipment |
-
2004
- 2004-06-28 CN CNB2004100197514A patent/CN100519882C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575409A (en) * | 2009-08-27 | 2012-07-11 | Lg电子株式会社 | Control method of laundry machine |
| CN102242483A (en) * | 2011-06-15 | 2011-11-16 | 海尔集团公司 | Dewatering control method for washing machine |
| CN106661801A (en) * | 2014-10-30 | 2017-05-10 | 松下知识产权经营株式会社 | Drum-type washing machine |
| CN106661801B (en) * | 2014-10-30 | 2019-01-01 | 松下知识产权经营株式会社 | Tumbling-box washing machine |
| CN105734889A (en) * | 2014-12-09 | 2016-07-06 | 无锡小天鹅股份有限公司 | Drum-type washing machine and dewatering method thereof |
| CN110894659A (en) * | 2018-09-11 | 2020-03-20 | 无锡小天鹅电器有限公司 | Control method and device of washing machine, machine readable storage medium and washing machine |
| CN110016784A (en) * | 2019-05-09 | 2019-07-16 | 深圳和而泰智能控制股份有限公司 | The control method and device of washing machine |
| CN113249928A (en) * | 2020-02-10 | 2021-08-13 | 青岛海尔洗衣机有限公司 | Dehydration control method of clothes treatment equipment and clothes treatment equipment |
| CN113249928B (en) * | 2020-02-10 | 2024-02-09 | 青岛海尔洗衣机有限公司 | Dehydration control method of laundry treatment apparatus and laundry treatment apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100519882C (en) | 2009-07-29 |
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Granted publication date: 20090729 Termination date: 20110628 |