CN102644181A - Defoaming device for drum washing machine and defoaming method therefor - Google Patents
Defoaming device for drum washing machine and defoaming method therefor Download PDFInfo
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- CN102644181A CN102644181A CN2012101592500A CN201210159250A CN102644181A CN 102644181 A CN102644181 A CN 102644181A CN 2012101592500 A CN2012101592500 A CN 2012101592500A CN 201210159250 A CN201210159250 A CN 201210159250A CN 102644181 A CN102644181 A CN 102644181A
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Abstract
The invention discloses a defoaming device for a drum washing machine, which can be used for flushing foams if the foams are judged to be too many, so that the situation of too many foams can be avoided during washing, and the washing and rinsing effects of the drum washing machine can be guaranteed. A signal of a motor rotating speed feedback unit is input into a microcomputer chip, a motor control signal is transmitted to a motor by the microcomputer chip through a motor controller, the microcomputer chip is further connected with a water level sensor, and the microcomputer chip transmits a water inlet control signal to a water inlet valve by through the water inlet controller and transmits a water outlet control signal to a water outlet valve by a water outlet controller. The invention further provides a defoaming method for the drum washing machine.
Description
Technical field
The present invention relates to electronic technology field, the debubbling method of particularly a kind of defoaming device of roller washing machine, and roller washing machine.
Background technology
Roller washing machine if it is excessive to add washing powder, can produce a large amount of foams in washing process, when washing, foam can cause too much that friction reduces between friction and clothing and the water between friction each other, clothing and the barrel of clothing, influences clean result; When rinsing and dehydration, if foam is too much, foam can't get rid of, and also can influence rinsing and dehydrating effect, thereby causes after the whole washing EP (end of program), having residual foam on the clothing.Roller washing machine is technological at the technical dehydration froth breaking that mostly adopts of froth breaking at present: the first time after washing is when dewatering; Carrying out foam judges; After if the power output of motor reaches certain value; Motor speed does not reach the setting rotating speed, judges that then laundry drum machine barrel inner foam is too much, need carry out defoaming treatment.Adopt the shortcoming of this kind froth breaking technology to be: 1, the foam judgement time too lags behind, and judges whether foam washs too much the time to accomplish, and has influenced clean result; 2, much adopt this kind technology, want foam more just can judge sometimes, foam too much (has influenced washing and wash effect) sometimes, but the roller washing machine control panel fails too much to carry out defoaming treatment by foam.
Summary of the invention
The judgement foam is crossed at most foam to be washed to handle and is made the defoaming device that can not be in the too much state of foam when washing, guarantee the roller washing machine of roller washing machine washing and wash effect thereby the technical problem that the present invention will solve provides a kind of.
The technical scheme that addresses the above problem is: the defoaming device of this roller washing machine; The signal input microcomputer chip of motor speed feedback unit; Microcomputer chip sends motor control signal to motor through motor control assembly; Microcomputer chip also is connected with level sensor, and microcomputer chip sends water intaking valve to and sends the draining control signal to draining pump through drain control unit through the inlet control device control signal of will intaking.
Because roller washing machine if foam is too much, can causes the rising of water level signal numerical value, and cause the absolute deviation value of rotating speed of motor to have certain increasing when washing; So adopted the signal of level sensor signal and motor speed feedback unit to combine what of anticipation foam, in the process of roller washing machine washing, microcomputer chip is gathered the signal of level sensor; If the water level signal value reaches certain limit value; And the absolute value of the difference of the signal of motor speed feedback unit and setting value becomes big to some extent in the unit interval at this moment, just judges that laundry drum machine barrel inner foam is too much at this moment, the washing of stopping; Earlier foam is washed; Wash again after the flushing, thereby reduce foam, guaranteed the washing and the wash effect of roller washing machine too much to the influence of clean result.
A kind of debubbling method of roller washing machine also is provided, has may further comprise the steps:
(1) microcomputer chip gets into washing flow, begins washing;
(2) in two minutes of beginning to wash; Changeing-gathering when the motor that stops washing rotates the signal of motor speed feedback unit; Be converted into the rotating speed absolute value of the bias; And absolute value of the bias in the unit interval added up put into register X, changeing-during the motor halted state of stopping washing, the water level signal of gathering roller washing machine through level sensor; With the deviate X of two minutes motor speeds that begin the to wash X that averages
0, with mean value X
0Be made as the reference value of motor speed deviate; Get into step (3) after two minutes
(3) changeing-gathering when the motor that stops washing rotates the signal of motor speed feedback unit; Be converted into the rotating speed absolute value of the bias; And absolute value of the bias in the unit interval added up put into register X; Changeing-during the motor halted state of stopping washing, the water level signal of gathering roller washing machine through level sensor; Be higher than first watermark threshold if in running, find the water level lift-off value, execution in step (4) then, otherwise continue execution in step (3);
(4) read motor deviation accumulated value X in the current unit interval, if X-X
0Greater than designated value, and occur predetermined number of times continuously, it is too much then to be judged to be foam, execution in step (5), otherwise return step (3);
(5) microcomputer chip disable motor device, inlet control device is opened in the washing of stopping, and opens water intaking valve, and water level is elevated to second watermark threshold or flooding time t
2After, t
2Be positive number, stop moisturizing, execution in step (6);
(6) the opening water discharge control device is opened draining pump, and water level drops to first watermark threshold or water discharge time t
3After, stop draining, execution in step (7);
(7) execution in step (1) again.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
The specific embodiment
As shown in Figure 1; The defoaming device of this roller washing machine; The signal input microcomputer chip of motor speed feedback unit; Microcomputer chip (defoaming treatment device) sends motor control signal to motor through motor control assembly, and microcomputer chip also is connected with level sensor, and microcomputer chip sends water intaking valve to and sends the draining control signal to draining pump through drain control unit through the inlet control device control signal of will intaking.
Owing to show that through a large amount of experiments roller washing machine is too much as if foam when washing, can cause the rising of water level signal numerical value, and cause the absolute deviation value of rotating speed of motor to have certain increasing; So adopted the signal of level sensor signal and motor speed feedback unit to combine what of anticipation foam, in the process of roller washing machine washing, microcomputer chip is gathered the signal of level sensor; If the water level signal value reaches certain limit value; And the absolute value of the difference of the signal of motor speed feedback unit and setting value becomes big to some extent in the unit interval at this moment, just judges that laundry drum machine barrel inner foam is too much at this moment, the washing of stopping; Earlier foam is washed; Wash again after the flushing, thereby reduce foam, guaranteed the washing and the wash effect of roller washing machine too much to the influence of clean result.
A kind of debubbling method of roller washing machine also is provided, has may further comprise the steps:
(1) microcomputer chip gets into washing flow, begins washing;
(2) in two minutes of beginning to wash; Changeing-gathering when the motor that stops washing rotates the signal of motor speed feedback unit; Be converted into the rotating speed absolute value of the bias; And absolute value of the bias in the unit interval added up put into register X, changeing-during the motor halted state of stopping washing, the water level signal of gathering roller washing machine through level sensor; With the deviate X of two minutes motor speeds that begin the to wash X that averages
0, with mean value X
0Be made as the reference value of motor speed deviate; Get into step (3) after two minutes
(3) changeing-gathering when the motor that stops washing rotates the signal of motor speed feedback unit; Be converted into the rotating speed absolute value of the bias; And absolute value of the bias in the unit interval added up put into register X; Changeing-during the motor halted state of stopping washing, the water level signal of gathering roller washing machine through level sensor; Be higher than first watermark threshold if in running, find the water level lift-off value, execution in step (4) then, otherwise continue execution in step (3);
(4) read motor deviation accumulated value X in the current unit interval, if X-X
0Greater than designated value, and occur predetermined number of times continuously, it is too much then to be judged to be foam, execution in step (5), otherwise return step (3);
(5) microcomputer chip disable motor device, inlet control device is opened in the washing of stopping, and opens water intaking valve, and water level is elevated to second watermark threshold or flooding time t
2After, t
2Be positive number, stop moisturizing, execution in step (6);
(6) the opening water discharge control device is opened draining pump, and water level drops to first watermark threshold or water discharge time t
3After, stop draining, execution in step (7);
(7) execution in step (1) again.
Preferably, the unit interval is 1 second, and first designated value is 0.2X
0, predetermined number of times is 10 times.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs to the protection domain of technical scheme of the present invention to any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. the defoaming device of a roller washing machine; The signal input microcomputer chip of motor speed feedback unit; Microcomputer chip sends motor control signal to motor through motor control assembly; It is characterized in that: microcomputer chip also is connected with level sensor, and microcomputer chip sends water intaking valve to and sends the draining control signal to draining pump through drain control unit through the inlet control device control signal of will intaking.
2. the debubbling method of a roller washing machine is characterized in that: may further comprise the steps:
(1) microcomputer chip gets into washing flow, begins washing;
(2) in two minutes of beginning to wash; Changeing-gathering when the motor that stops washing rotates the signal of motor speed feedback unit; Be converted into the rotating speed absolute value of the bias; And absolute value of the bias in the unit interval added up put into register X, changeing-during the motor halted state of stopping washing, the water level signal of gathering roller washing machine through level sensor; With the deviate X of two minutes motor speeds that begin the to wash X that averages
0, with mean value X
0Be made as the reference value of motor speed deviate; Get into step (3) after two minutes
(3) changeing-gathering when the motor that stops washing rotates the signal of motor speed feedback unit; Be converted into the rotating speed absolute value of the bias; And absolute value of the bias in the unit interval added up put into register X; Changeing-during the motor halted state of stopping washing, the water level signal of gathering roller washing machine through level sensor; Be higher than first watermark threshold if in running, find the water level lift-off value, execution in step (4) then, otherwise continue execution in step (3);
(4) read motor deviation accumulated value X in the current unit interval, if X-X
0Greater than designated value, and occur predetermined number of times continuously, it is too much then to be judged to be foam, execution in step (5), otherwise return step (3);
(5) microcomputer chip disable motor device, inlet control device is opened in the washing of stopping, and opens water intaking valve, and water level is elevated to second watermark threshold or flooding time t
2After, t
2Be positive number, stop moisturizing, execution in step (6);
(6) the opening water discharge control device is opened draining pump, and water level drops to first watermark threshold or water discharge time t
3After, stop draining, execution in step (7);
(7) execution in step (1) again.
3. the debubbling method of roller washing machine according to claim 2, it is characterized in that: the unit interval is 1 second, first designated value is 0.2X
0, predetermined number of times is 10 times.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101592500A CN102644181A (en) | 2012-05-22 | 2012-05-22 | Defoaming device for drum washing machine and defoaming method therefor |
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| CN2012101592500A CN102644181A (en) | 2012-05-22 | 2012-05-22 | Defoaming device for drum washing machine and defoaming method therefor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350968A (en) * | 2016-10-17 | 2017-01-25 | 珠海格力电器股份有限公司 | Method and system for preventing foam from overflowing |
| WO2018103698A1 (en) * | 2016-12-07 | 2018-06-14 | 青岛海尔滚筒洗衣机有限公司 | Method for detecting and removing foams for use in washing machines |
| CN108265461A (en) * | 2017-12-22 | 2018-07-10 | 珠海格力电器股份有限公司 | Method and device for treating foam in washing machine |
| CN111850950A (en) * | 2019-04-30 | 2020-10-30 | 青岛海尔洗衣机有限公司 | Drainage control method for washing equipment |
| CN112575508A (en) * | 2020-11-26 | 2021-03-30 | 珠海格力电器股份有限公司 | Foam control method of washing machine and washing machine |
| CN112941818A (en) * | 2021-01-25 | 2021-06-11 | 珠海格力电器股份有限公司 | Washing machine control method and device, storage medium and washing machine |
| WO2022083458A1 (en) * | 2020-10-19 | 2022-04-28 | 青岛海尔洗衣机有限公司 | Control method, apparatus and device for washing device |
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| CN101307550A (en) * | 2007-12-11 | 2008-11-19 | 南京乐金熊猫电器有限公司 | Washing machine foam detection method |
| CN101772600A (en) * | 2007-08-01 | 2010-07-07 | Bsh博世和西门子家用器具有限公司 | Method for eliminating foam in a drum washing machine and drum washing machine suitable therefor |
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| CN101772600A (en) * | 2007-08-01 | 2010-07-07 | Bsh博世和西门子家用器具有限公司 | Method for eliminating foam in a drum washing machine and drum washing machine suitable therefor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350968A (en) * | 2016-10-17 | 2017-01-25 | 珠海格力电器股份有限公司 | Method and system for preventing foam from overflowing |
| CN106350968B (en) * | 2016-10-17 | 2019-01-08 | 珠海格力电器股份有限公司 | Method and system for preventing foam from overflowing |
| WO2018103698A1 (en) * | 2016-12-07 | 2018-06-14 | 青岛海尔滚筒洗衣机有限公司 | Method for detecting and removing foams for use in washing machines |
| CN108166219A (en) * | 2016-12-07 | 2018-06-15 | 青岛海尔滚筒洗衣机有限公司 | A kind of foam detection of washing machine and removing method |
| CN108265461A (en) * | 2017-12-22 | 2018-07-10 | 珠海格力电器股份有限公司 | Method and device for treating foam in washing machine |
| CN111850950A (en) * | 2019-04-30 | 2020-10-30 | 青岛海尔洗衣机有限公司 | Drainage control method for washing equipment |
| CN111850950B (en) * | 2019-04-30 | 2022-12-09 | 青岛海尔洗衣机有限公司 | Drainage control method for washing equipment |
| WO2022083458A1 (en) * | 2020-10-19 | 2022-04-28 | 青岛海尔洗衣机有限公司 | Control method, apparatus and device for washing device |
| CN112575508A (en) * | 2020-11-26 | 2021-03-30 | 珠海格力电器股份有限公司 | Foam control method of washing machine and washing machine |
| CN112941818A (en) * | 2021-01-25 | 2021-06-11 | 珠海格力电器股份有限公司 | Washing machine control method and device, storage medium and washing machine |
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Application publication date: 20120822 |