CN1566442A - Dry control apparatus and method for washing machine - Google Patents
Dry control apparatus and method for washing machine Download PDFInfo
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- CN1566442A CN1566442A CN 03130295 CN03130295A CN1566442A CN 1566442 A CN1566442 A CN 1566442A CN 03130295 CN03130295 CN 03130295 CN 03130295 A CN03130295 A CN 03130295A CN 1566442 A CN1566442 A CN 1566442A
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Abstract
A dewatering control device and method for a washing machine is provided. The control device comprises: an electric motor, a bias detector, a microcomputer and a vibration detector. The control method includes the following steps: detecting the bias amount when the motor is accelerated according to the preset first rotation number; when the bias amount is smaller than the preset value, accelerating the motor in accordance with the corresponding preset rotation number, and judging whether the vibration happens under the second rotation number; if the vibration is detected, stopping said motor. The invention has the following strongpoint: increasing permit value of bias amount in dewatering process to shorten washing time; when resonance happens, the motor is stopped to prevent noise.
Description
Technical field
What the present invention relates to is washing machine, particularly be the dehydration control apparatus and the control method thereof of washing machine.
Background technology
The dehydration control apparatus of existing washing machine as shown in fig. 1, its structure comprises: motor 1; The eccentricity detecting portion 2 of offset during for the detection dehydration; If having reached the offset of setting, the offset that detects to control the microcomputer 3 that motor 1 stops when above.
Dehydration control apparatus with existing washing machine of said structure, at first microcomputer 3 drives and acceleration motor 1 rotation according to the revolution of having set when the control dehydration begins.
Under the acceleration mode of the motor 1 that causes according to the revolution of above-mentioned setting, detect offsets by eccentricity detecting portion 2.
Eccentricity detecting portion 2 receives the rotary speed of motor 1 and detects the variation of importing rotary speed according to the control signal of above-mentioned microcomputer 3.
The variable quantity of the rotary speed of the above-mentioned detection of microcomputer 3 identifications, if the variation of rotary speed the regulation excursion in the time, when then the offset of Jian Ceing is within tolerance zone, for the dewatering speed that allows dewatering speed reach to have set and the revolution of acceleration motor 1.On the contrary, if when prescribed limit is above, offset has exceeded tolerance zone, and then microcomputer 3 is exported the control signal that stops motor 1,
When quickening dewatering speed, eccentricity detecting is to carry out repeatedly by institute's fixed cycle, along with the eccentricity detecting number of times changes and changes benchmark offset (tolerance zone of offset) and set dewatering speed.
And the relevant benchmark offset of above-mentioned eccentricity detecting number of times and to set dewatering speed be to form formization and be stored in the memory (omitting diagram) in the microcomputer 3.
Control method to the existing washing machine of above-mentioned action describes below:
As shown in Figure 2,
Begin dehydration: dehydration begins;
Acceleration motor S1: at first according to the revolution turning motor 1 set and quicken dewatering speed, the above-mentioned revolution of having set is 100RPM;
Offset detects S2: offset detects the benchmark offset of frequency n correspondence and sets dewatering speed as shown in following table 1, is stored in after detection number of times, the offset formization in the memory in the microcomputer 3 (omitting diagram).
[table 1]
| The eccentricity detecting frequency n | 1 ~ 5 time | 6 ~ 10 times | 10 ~ 15 times | 16 ~ 20 times |
| Offset | ??20 | ??25 | ??30 | ??35 |
| Dewatering speed | ??1200 | ??1100 | ??1000 | ??800 |
The offset S3 that detects: under above-mentioned 100RPM situation, at first detect the n=1 offset, whether the offset of judging above-mentioned detection is in the benchmark offset.At this moment, eccentricity detecting frequency n=1, corresponding benchmark offset is 20, setting dewatering speed is 1200RPM.
Control electromotor velocity S4: according to the S3 judged result, offset should be by setting dewatering speed 1200RPM control motor 1 speed in the benchmark offset.
Returning to S2 after the stage, regularly detect offset, whether below the benchmark offset of eccentricity detecting number of times correspondence, press the rotary speed that the related setting dewatering speed is controlled motor according to the offset that detects.
For example, the eccentricity detecting number of times is 3 o'clock, i.e. n=3, and the benchmark offset is 20, setting dewatering speed is 1200RPM; The benchmark offset was 25 when the eccentricity detecting number of times was 7 times, and setting dewatering speed is 1100RPM.
Motor stops S5: if above-mentioned judged result (S3) offset when the benchmark offset is above, then stops motor 1 rotation.
The dehydration control apparatus of existing washing machine and control method thereof are after dehydration begins, and the revolution that will consider when detecting eccentric process to resonate (150 ~ 300RPM), so the benchmark offset is less, make the dehydration process slow down.
In addition, vibration has taken place in washing machine in the range of revolution that resonance takes place, and produces noise.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, provide a kind of and enter dehydration more fast and can prevent laundry machine dehydration control device and the control method thereof that vibration produces noise.
The technical scheme that the present invention solves the problems of the technologies described above is:
A kind of dehydration control apparatus of washing machine, its structure comprises: the motor of washing machine, when detecting dehydration and carry out eccentricity detecting portion, the microcomputer of offset, the vibration detecting part of vibration when this structure also is included as and detects dehydration and carry out; The offset that detects by eccentricity detecting portion exceeds more than the offset of having set or when detecting vibration by vibration detecting part, the microcomputer that motor is stopped operating.
A kind of control method of dehydration control apparatus of washing machine is characterized in that this method comprised with the next stage:
(1). when beginning, dehydration detects the stage of offset at that time according to behind the 1st revolution acceleration motor of having set;
(2). when offset is less than the offset set at that time, judge the vibration whether stage that under the 2nd revolution of having set, whether detects according to the corresponding setting revolution of the offset acceleration motor set the time;
(3). when under above-mentioned the 2nd revolution, detecting vibration, stop the stage of motor.
The invention has the beneficial effects as follows: the dehydration control apparatus of washing machine of the present invention and control method are to strengthen the allowable value of the offset that enters dehydration, have the effect that can shorten wash time.
And, under the speed that resonance takes place, detect vibration, if there is resonance, motor stops operating, and can prevent that dehydration from producing noise.
Description of drawings
Fig. 1 is the module map of the dehydration control apparatus of existing washing machine;
Fig. 2 is the flow chart of the dehydration controlling method of existing washing machine;
Fig. 3 is the module map of the dehydration control apparatus of washing machine of the present invention;
Fig. 4 is the flow chart of the dehydration controlling method of washing machine of the present invention.
The specific embodiment
The invention provides a kind of dehydration control apparatus of washing machine, its structure comprises: the motor of washing machine, when detecting dehydration and carry out eccentricity detecting portion, the microcomputer of offset, the vibration detecting part of vibration when this structure also is included as and detects dehydration and carry out; The offset that detects by eccentricity detecting portion exceeds more than the offset of having set or when detecting vibration by vibration detecting part, the microcomputer that motor is stopped operating.
The invention provides a kind of control method of dehydration control apparatus of washing machine, this method comprised with the next stage:
(1). when beginning, dehydration detects the stage of offset at that time according to behind the 1st revolution acceleration motor of having set;
(2). when offset is less than the offset set at that time, judge the vibration whether stage that under the 2nd revolution of having set, whether detects according to the corresponding setting revolution of the offset acceleration motor set the time;
(3). when under above-mentioned the 2nd revolution, detecting vibration, stop the stage of motor.
When surpassing the offset of having set, offset at that time stops the stage of the rotation of motor.
When detecting vibration under the 2nd revolution, do not continue the stage that acceleration motor rotates according to setting revolution.
Described the 1st revolution is to be 100RPM.
The speed that causes resonance when described the 2nd revolution is dehydration is 150 ~ 300RPM.
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail:
Fig. 3 is the structured flowchart of the dehydration control apparatus of diagram washing machine of the present invention.
According to diagram, the dehydration control apparatus of washing machine of the present invention comprises: the motor 10 of washing machine; The eccentricity detecting portion 20 of offset when carrying out for detecting dehydration; The vibration detecting part 30 of vibration when carrying out for detecting dehydration; The offset that detects by eccentricity detecting portion 20 exceeds more than the offset of having set or stops the microcomputer 40 of motor 10 when detecting vibration by above-mentioned vibration detecting part 30; Wherein microcomputer 40 connects motor 10, eccentricity detecting portion 20, the vibration detecting part 30 of washing machine respectively, and motor 10 connects eccentricity detecting portion 20.
The action of the dehydration control apparatus of the washing machine of the present invention of said structure is: when at first microcomputer 40 entered by the dehydration initial stage, the revolution 100rpm control motor of having set 10 also quickened dewatering speed.
Microcomputer 40 is in order to detect offset, to eccentricity detecting portion 20 output control signals under revolution 100rpm.
Eccentricity detecting portion 20 is identical with the action of existing structure, so omit its detailed explanation.
Be stored in after benchmark offset corresponding and the setting dewatering speed formation datumization in the memory (omitting diagram) in the above-mentioned microcomputer 40 with the eccentricity detecting number of times.
The offset that detects by eccentricity detecting portion 20 is when the benchmark offset of having set is following, microcomputer 40 is to control above-mentioned motor 10 according to the corresponding dewatering speed of setting, if when the benchmark offset is above, then stopping motor 10, the offset that detects rotates.
Microcomputer 40 control motor 10 dewatering speed by setting in the process that dewatering speed quickens, when motor 10 be able to resonate 150 to 300rpm the time, can 30 detect generation of vibration by vibration detecting part.
When microcomputer 40 detected vibration by above-mentioned vibration detecting part 30, above-mentioned motor 10 stopped, and when not detecting vibration, then continued to quicken rotating motor by setting dewatering speed.
Above-mentioned microcomputer 40 is in order to control eccentricity detecting portion 20 by the cycle detection offset of having set.
As shown in Figure 4, it is as follows according to the stage concrete operations in claim 2 control method to have a laundry machine dehydration control method of the present invention of said structure:
Dehydration beginning: enter the beginning water smoking;
Acceleration motor (S10): when dehydration enters, at first by the 1st revolution (100rpm) acceleration motor of having set 10.
Offset detection (S11), N return the offset (S12) of detection: the benchmark offset of eccentricity detecting frequency n correspondence and setting dewatering speed are as diagram in the following table 2, are stored in system storage (omitting diagram) after the formization.
Among the present invention, the benchmark offset of above-mentioned eccentricity detecting number of times correspondence is to have than prior art to have bigger value.This is to think the value of not considering to cause the revolution that resonates.
[table 2]
| The eccentricity detecting frequency n | 1 ~ 5 time | 6 ~ 10 times | 10 ~ 15 times | 16 ~ 20 times |
| Offset | ??30 | ??35 | ?40 | ??45 |
| Dewatering speed | ??1200 | ??1100 | ?1000 | ??800 |
At first detect n=1 offset S11 under the acceleration mode of the motor 10 of the 1st revolution correspondence, whether more detected offset is below the benchmark offset of eccentricity detecting number of times correspondence.
Control electromotor velocity (S13): return dewatering speed control electromotor velocity according to the N that has set;
Judge electromotor velocity (S14): the offset of the above-mentioned detection of judged result (S12) is that the benchmark offset is when following, in the time of by the setting dewatering speed acceleration motor corresponding 10 with the eccentricity detecting number of times, judge by set in the dewatering speed accelerator motor 10 at that time speed whether be more than the 150prm.
Judge electromotor velocity (S15): above-mentioned judged result (S14) motor 10 current speed continue above-mentioned motor 10 is quickened during less than 150RPM, if current speed reaches 150RPM when above, will judge that also present speed is whether below 300RPM.
Judge electromotor velocity (S16): above-mentioned judged result (S15) when 300RPM is following, also will judge whether to exist vibration as current speed.
That is, whether whether the current speed of judging above-mentioned motor 10, detect vibration targetedly and take place when current speed is in 150 ~ 300RPM causing in the revolution 150 ~ 300RPM scope that resonates.
Control electromotor velocity (S17): above-mentioned judged result (S16), quicken above-mentioned motor 10 till dewatering speed reaches above-mentioned dewatering speed when not detecting vibration.
Return to S11 after the stage at dehydration control apparatus, detect offset by institute's fixed cycle, offset that detects and the corresponding benchmark offset of eccentricity detecting number of times are judged that relatively the back is by setting dewatering speed acceleration motor 10 rotary speeds with reference to illustrated data in the above-mentioned table 2.
For example, the initial benchmark offset that detects eccentricity detecting frequency n=1 correspondence when eccentric is 30 bigger than prior art 20, and setting speed is 1200rpm.In addition, the benchmark offset was 35 when the eccentricity detecting number of times was 8 (n=8), and is also big than prior art 25, and setting dewatering speed is 1100RPM.
Motor stops (S18): in above-mentioned judged result (S16) if in detect when vibration, 10 on above-mentioned motor returns and stops operating.
So the present invention has additionally increased the means that cause resonance that detect in dehydration, detect and need not consider when eccentric because of causing resonance decline benchmark offset problem, can bigger increase benchmark offset, accelerate to enter dehydration.
Above-mentioned description, industry personnel can carry out various changes and correction in not breaking away from technological thought scope of the present invention.And technical scope of the present invention is the restriction that is not subjected to the content put down in writing in the above-mentioned case study on implementation, and defines according to record content in the application range.
Claims (6)
1. the dehydration control apparatus of a washing machine, its structure comprises: the motor of washing machine, when detecting dehydration and carry out eccentricity detecting portion, the microcomputer of offset, it is characterized in that this structure also is included as the vibration detecting part of vibration when detecting dehydration and carrying out; The offset that detects by eccentricity detecting portion exceeds more than the offset of having set or when detecting vibration by vibration detecting part, the microcomputer that motor is stopped operating.
2. the control method of the dehydration control apparatus of a washing machine is characterized in that this method comprised with the next stage:
(1). when beginning, dehydration detects the stage of offset at that time according to behind the 1st revolution acceleration motor of having set;
(2). when offset is less than the offset set at that time, judge the vibration whether stage that under the 2nd revolution of having set, whether detects according to the corresponding setting revolution of the offset acceleration motor set the time;
(3). when under above-mentioned the 2nd revolution, detecting vibration, stop the stage of motor.
3. according to the method described in the claim 2, it is characterized in that when offset surpasses the offset of having set at that time, stopping the stage of the rotation of motor.
4. according to the method described in the claim 2, it is characterized in that when detecting vibration under the 2nd revolution, not continuing the stage that acceleration motor rotates according to setting revolution.
5. according to the method described in the claim 2, it is characterized in that described the 1st revolution is to be 100RPM.
6. according to the method described in the claim 2, it is characterized in that causing the speed that resonates when described the 2nd revolution is dehydration is 150 ~ 300RPM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03130295 CN1566442A (en) | 2003-06-30 | 2003-06-30 | Dry control apparatus and method for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03130295 CN1566442A (en) | 2003-06-30 | 2003-06-30 | Dry control apparatus and method for washing machine |
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| CN1566442A true CN1566442A (en) | 2005-01-19 |
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| CN 03130295 Pending CN1566442A (en) | 2003-06-30 | 2003-06-30 | Dry control apparatus and method for washing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100554563C (en) * | 2007-11-01 | 2009-10-28 | 无锡小天鹅股份有限公司 | Dehydration Curve Algorithm of Drum Washing Machine |
| WO2018121598A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔洗衣机有限公司 | Front-loading washing machine |
-
2003
- 2003-06-30 CN CN 03130295 patent/CN1566442A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100554563C (en) * | 2007-11-01 | 2009-10-28 | 无锡小天鹅股份有限公司 | Dehydration Curve Algorithm of Drum Washing Machine |
| WO2018121598A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔洗衣机有限公司 | Front-loading washing machine |
| CN110114524A (en) * | 2016-12-27 | 2019-08-09 | 青岛海尔洗衣机有限公司 | Tumbling-box washing machine |
| CN110114524B (en) * | 2016-12-27 | 2022-02-01 | 青岛海尔洗衣机有限公司 | Drum type washing machine |
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