CN102242483A - Dewatering control method for washing machine - Google Patents
Dewatering control method for washing machine Download PDFInfo
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- CN102242483A CN102242483A CN2011101601242A CN201110160124A CN102242483A CN 102242483 A CN102242483 A CN 102242483A CN 2011101601242 A CN2011101601242 A CN 2011101601242A CN 201110160124 A CN201110160124 A CN 201110160124A CN 102242483 A CN102242483 A CN 102242483A
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Abstract
The invention discloses a dewatering control method for a washing machine. In the method, after a washing stage is finished, the following stages are executed under control: firstly, in a shake-out uniform stage, a washing cylinder rotates at the uniform rotate speed of forward and reverse directions and is accelerated to a distribution phase; secondly, the distribution phase comprises three steps of: rotating at the distribution rotate speed, rotating at the pulse distribution rotate speed, and rotating at the distribution rotate speed, wherein in the previous and later steps of rotating at the distribution rotate speed, the amount of unbalance is needed to be detected, if the amount of unbalance meets the requirement, the later step of the respective steps is executed directly, and if the amount of unbalance does not meet the requirement, the redistribution is executed; thirdly, the pulse spin-drying stage comprises various steps of pulse spin-drying at different rotate speeds, wherein the amount of unbalance is needed to be detected in each pulse spin-drying step, and if the amount of unbalance does not meet the requirement, the redistribution is executed; and finally, in the final spin-drying stage, clothes is dewatered by controlling the highest rotate speed.
Description
Technical field
The present invention relates to a kind of control method for washing machine, especially a kind of control rotating speed is to improve the equally distributed laundry machine dehydration control method of clothing.
Background technology
Along with washing machine user group's continuous increase, the distribution and the drying process length consuming time of existing washing machine, and be difficult to be evenly distributed easily cause skewness and cause drying problems such as vibration is big, displacement, bring very big inconvenience to the user.Because washing machine exists vibration component and two resonance points of fixed part, even washing machine low speed is avoided the resonance point of vibration component when drying, the fixed part resonance that reaches when drying at a high speed also can form very big noise.
If all take low speed to dry mode, need dry distribution and eccentricity values again repeatedly and detect, the cost of avoiding the low speed resonance point is that laundry time lengthening, power consumption rise.
As the distribution control method of applicant in first to file, application number is CN200810187976.9, name is called method for distribution control of drum type washing machine before drying clothes, its solution is to be begun by bleeding stage, successively by the slow-speed of revolution in the bleeding stage rotating, same direction is rotated the medium speed of fast rise after the stage, with the high rotating speed behind the slow ascent stage of last stage equidirectional, after this high stabilization of speed, judge the amount of unbalance size, when amount of unbalance during more than or equal to the severe amount of unbalance of program setting, slow-speed of revolution when rotating speed drops to draining, rotate after 5～6 seconds, begin redistribution from second stage, when continuous distributed does not still satisfy impulsive condition three times, restart to distribute by the phase I; When amount of unbalance directly enters the pre-spin-dry stage during less than the severe amount of unbalance.
With above-mentioned application formerly is the prior art of representative, and distribution and drying stage all are to carry out after all or part of discharge of washings.And actual conditions are, clothing is easy to be difficult to reach even distribution in the inner local accumulation that takes place of inner core when inner core rotates after washings are discharged.
If implement repeatedly to distribute, to choose less eccentricity value, after reaching requirement, eccentricity detecting, tends to take place the resonance problem of parts such as shell again to dry at a high speed as standard.
The roller washing machine distribution curve is undesirable in addition, and the little clothing (as bath towel, woollen sweater etc.) of surface area more is difficult to realize even distribution for those suctions are many.Even also reaching the eccentricity detecting requirement through for a long time distribution sometimes, long-time use also can cause the unusual or displacement of inner core rotation.
Conventional washer is directly carried out pulse and is dried under distribution rotational speed state, so just might occur following problem: a, when bucket internal burden clothing material not simultaneously, though distribute finely under the distribution, but it is different that pulse dries the water outlet of accelerating period load clothing, so just cause barrel internal burden clothing, thereby cause drying big, the problems such as complete machine rocks, displacement of vibration because of the different off-centre that cause of water yield; Load clothing distribution situation shown in b, Fig. 1 d, under the distribution rotating speed, clothing of middle existence, cause not exclusively is affixed on the tube, and causes detecting the amount of unbalance that brings less than it, and this kind state directly carries out pulse and dries, middle clothing is affixed on certain position of tube, to bring serious imbalance, complete machine not only vibrates greatly, even can damaged structure.
Application number is that 200510106136.1 Chinese patent discloses a kind of homogenization method, eccentric detection method and dehydration controlling method, gathers cylinder and revolves the rotation speed change that causes because of off-centre in turning around with 72～85RPM rotating speed, to detecting of eccentric degree.And the machine 72～85RPM that runs well, clothing is not attached on the bucket fully, and the rotating speed that detect this moment is very inaccurate.When bucket had been with clothing up to climb, clothing was an one with bucket; And clothing to cross barrel top be free state when descending, almost do not contact with bucket, the influence that the influence that the load clothing rotates bucket is attached on the bucket more entirely is little, detects under these circumstances, the data of coming out are inaccurate.This control method is dewatered in advance with 300RPM left and right sides rotating speed, and this also is irrational.The structure of each machine is different, these corresponding rotating speeds all are different, and all there is resonance point in most of machine at 250RPM～400RPM, must at first consider the structure of machine when designing various rotating speed, avoid resonance point, and can not it is stuck on some values.
In view of this special proposition the present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and providing a kind of can be evenly distributed, and reduces off-centre, reduces vibration, improves the dehydration quality, can maximizedly save time again, the laundry machine dehydration control method of power saving.
For solving the problems of the technologies described above, the present invention adopts the basic design of technical scheme to be: a kind of laundry machine dehydration control method, this method are after the washing stage finishes, and following each stage is carried out in control:
At first, tremble the even cloth stage of loosing, cylindric washer arrives distribution phase with the after-acceleration of forward and reverse even cloth rotational speed;
Secondly, distribution phase, comprise distribution rotational speed, distribution of pulses rotational speed, three steps of distribution rotational speed, wherein all need to detect amount of unbalance in former and later two distribution rotational speed processes, if amount of unbalance meets the demands and then directly carries out the later step of step separately,, amount of unbalance then do not carry out redistribution if not meeting the demands;
Once more, pulse dries the stage, the pulse that comprises a plurality of different rotating speeds dries step, each pulse dries in the step all needs to detect amount of unbalance, then directly carry out the later step that different rotating speeds pulse separately dries if amount of unbalance meets the demands, then do not carry out redistribution if amount of unbalance does not meet the demands;
At last, dry the stage at last, the control maximum speed is finished clothes dewatering.
Described trembling the even cloth stage of loosing, with all each rotates once to spare the cloth rotating speed counterclockwise, counterclockwise, each direction rotation time was not more than 5s to cylindric washer after elder generation was clockwise clockwise, and even cloth rotating speed is 60～75rpm, is preferably 65rpm.
Described redistribution is to be distributed by three repetitive cycling that constitute in order successively that distribute, each redistribution is by the beginning that distributes for the second time, be distributed as for the second time, earlier with rotating speed reduction of speed to 0, rotate counterclockwise then and reach the even cloth rotating speed of trembling the even cloth stage of loosing, carry out the distribution rotational speed of distribution phase again and detect amount of unbalance, when meeting the demands, carries out amount of unbalance later step, carry out for the third time in the time of can't meeting the demands and distribute, the distribution for the third time and the second time distribute identical, when distributing also backlog demand for the third time, after reducing to 0, rotating speed begins circulation from distributing for the first time again, be distributed as for the first time behind the clockwise even earlier cloth rotating speed counterclockwise, after counterclockwise even cloth rotational speed, accelerate to the distribution rotating speed immediately.
Dry and last drying if the step of carrying out after the redistribution is the pulse of variant rotating speed, then, the acceleration that satisfies when carrying out described various the drying after the amount of unbalance requirement of distributing for arbitrary time in the redistribution process is identical.
If the step of carrying out after the redistribution is the distribution of pulses rotational speed, then, to distribute corresponding all different to the acceleration of distribution of pulses rotating speed by the distribution rotating speed in the redistribution for three times, the acceleration a1 of back execution for the first time well distributes, the acceleration a2 of back execution for the second time well distributes, the acceleration a3 that carries out after distributing well for the third time, a1＞a2＞a3.
Described pulse dries the stage, comprises that successively low speed pulse drying and middling speed pulse dry, and the low speed pulse dries the range of speeds: 350～450rpm, is preferably 400rpm, and the middling speed pulse dries the range of speeds: 550～650rpm, is preferably 600rpm.
Described cylindric washer in each stage rotation process of dehydration control, remove the first time of trembling loose even cloth stage and redistribution in the distributed process earlier with clockwise again so that counterclockwise each rotates once, all the other are all according to counterclockwise rotating.
Described distribution rotating speed is 85～105rpm, and the distribution of pulses rotating speed is 120～250rpm.
Described maximum speed is 800～2000rpm, and according to the drive motors power of existing washing machine and the wash volume of washing machine, general maximum speed is controlled at 800～1800rpm.Relative, rotary drum washing machine, its maximum speed of rotary drum washing machine that does not especially possess direct driving motor is relatively low, and uses the maximum speed of washing machine, the especially roller washing machine of direct driving motor to be controlled at 1500～1800rpm.
The rotating speed of each stage wash tube and acceleration are according to drive motors, the cylindric washer capacity of washing machine and the different set of dewater clothing material, weight at every turn.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
Tremble the reason of the even cloth stage design like this of loosing: a, be beneficial to distribution; B, save time, enter distribution phase quickly.The drying that the repeatedly even cloth of conventional washer rotates distribution and back can not bring any benefit, and if in the cylindric washer when being a bath towel or towelling coverlet even load clothing, slowly running for a long time very easily breaks into volume with it, is unfavorable for the distribution and the drying of back.And repeatedly wasted the plenty of time with rotating counterclockwise also clockwise.
Distribution of pulses of the present invention, the water yield in the load clothing is discharged a part, be in order to make clothing be affixed on better on the washing barrel, and then be reduced to the distribution rotational speed, detect once more and judge uneven value, situation according to amount of unbalance judges whether that the pulse that can carry out the back dries, and has avoided the generation as problem among Fig. 1 d.
To sum up, laundry machine dehydration control method of the present invention has been saved dewatering time; Improved the distribution effect, avoided abnormal vibrations, noise, and then can improve the dehydration quality, prolonged bearing, shock absorber life-span because of the off-centre generation.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Description of drawings
The various distributions of load clothing in cylindric washer have been expressed among Fig. 1 a-1d, Fig. 1 a represents the even cloth state of low speed counterclockwise, Fig. 1 b represents the process that even cloth rotating speed quickens to the distribution rotating speed, state when Fig. 1 c represents to distribute rotational speed, Fig. 1 d represent that load clothing distributed process clothing distributes incorrect but detects the state that amount of unbalance meets the demands;
Fig. 2 is the water desorption curve schematic diagram of dehydration controlling method correspondence of the present invention;
Fig. 3 is a distribution curve schematic diagram of the present invention.
The specific embodiment
As shown in Figures 2 and 3, dehydration controlling method of the present invention mainly divides three sections controls: the control that distributes, pulse dry control, drying control at last, the control that wherein distributes specifically is divided into again trembling loose even cloth stage and distribution phase, i.e. phase I and second stage in the curve as shown in Figure 2.
At water desorption curve, specifically describe as follows:
Phase I, tremble the even cloth stage of loosing, it is of the present invention that to tremble the even cloth stage of loosing different with existing laundry machine dehydration distribution mode, existing washing machine dry need carry out repeatedly clockwise and rotate counterclockwise so that clothing evenly distributes, trembling the even cloth stage wash tube that looses among the present invention only rotates once on positive and negative both direction, and rotation direction has been controlled in strictness, promptly the back is counterclockwise clockwise earlier, each rotation time is very short, preferably be controlled in the 5s, after counterclockwise even cloth rotating speed Va rotates, accelerate to the distribution phase that distribution rotating speed Vb enters second stage immediately and distribute, and judge amount of unbalance.
Trembling the even cloth stage of loosing, trembling the even cloth rotating speed Va that looses is 60～75rpm, preferably is set to 65rpm.
Tremble the reason of the even cloth stage design like this of loosing: the one, be beneficial to distribution; The 2nd, save time, can enter distribution phase quickly.The drying that the repeatedly even cloth of existing washing machine rotates distribution and back can not bring any benefit, and if in the cylindric washer when being a bath towel or towelling coverlet even load clothing, slowly running for a long time very easily breaks into volume with it, is unfavorable for the distribution and the drying of back; And repeatedly wasted the plenty of time with rotating counterclockwise also clockwise.
Second stage, distribution phase, distribution phase of the present invention are to have increased distribution of pulses in existing washing machine distribution phase, and promptly distribution phase is set to " distribution rotational speed-distribution of pulses rotational speed-distribution rotational speed " three steps.All can detect amount of unbalance when wherein former and later two distribution rotating speeds Vb rotates, the amount of unbalance Shi Caineng that meets the demands carries out distribution of pulses rotating speed Vc and rotates under previous distribution rotating speed Vb rotary state, when amount of unbalance can't meet the demands, needs redistribution; The distribution rotating speed Vb rotary state in back detects amount of unbalance down, when amount of unbalance meets the demands, carries out the next stage pulse and dries, redistribution in the time of can't meeting the demands.When one or many redistribution back amount of unbalance meets the demands, then carry out subsequent step separately respectively, carry out distribution of pulses rotating speed Vc after promptly previous distribution rotating speed Vb rotates and rotate, carry out the next stage pulse after a back distribution rotating speed Vb rotates and dry.
The distribution of pulses rotating speed Vc of distribution phase of the present invention is 120～250rpm, and this design feature according to actual washing machine is provided with optimum speed, and principle is to avoid the low speed resonance point.
If directly carrying out pulse when promptly distributing rotational speed under Fig. 1 c state, washing machine dries, so just following problem might appear: one, when bucket internal burden clothing material not simultaneously, though distribute finely under the distribution, but it is different that pulse dries the water outlet of accelerating period load clothing, so just cause barrel internal burden clothing, thereby cause drying big, the problems such as complete machine rocks, displacement of vibration because of the different off-centre that cause of water yield; Two, the load clothing distribution situation shown in Fig. 1 d appears, under the distribution rotating speed, clothing of middle existence, cause not exclusively is affixed on the tube, and causes detecting the amount of unbalance that brings less than it, and this kind state directly carries out pulse and dries, middle clothing is affixed on certain position of tube, to bring serious imbalance, complete machine not only vibrates greatly, even can damaged structure.
The distribution of pulses of distribution phase design of the present invention can be avoided the generation of the problems referred to above.Distribution of pulses is for the water yield in the load clothing is discharged a part, also be to be affixed on the barrel for clothing is better, and then be reduced to distribution rotating speed Vb and rotate, detect once more and judge uneven value, judge whether that according to the situation of amount of unbalance the pulse that can carry out the back dries.
Phase III, pulse dries the stage, comprises that successively low speed pulse drying and middling speed pulse dry, and the low speed pulse dries rotating speed Vd scope: 350～450rpm, is preferably 400rpm, and the middling speed pulse dries rotating speed Ve scope: 550～650rpm is preferably 600rpm.
The quadravalence section, dry the stage at last, adopt constant maximum speed Vf to rotate counterclockwise, described maximum speed Vf is 800～2000rpm, according to the drive motors power of existing washing machine and the wash volume of washing machine, general maximum speed is controlled at 800～1800rpm.
As shown in Figure 3, be distribution curve, be included in the redistribution of amount of unbalance can't meet the demands the time, detect amount of unbalance in second stage with in the phase III, when amount of unbalance meets the demands, direct acceleration next step (consulting the A curve among Fig. 3); When amount of unbalance can't meet the demands, distribute again.During redistribution, distribute the second time shown in elder generation's execution graph, as shown in Figure 3, distribution rotating speed reduction of speed to 0 (consulting the B curve among Fig. 3) by the front, rotate counterclockwise again to reach and spare cloth rotating speed Va rotation, and then carry out distribution rotating speed Vb rotation and detect amount of unbalance, the follow-up step of execution when amount of unbalance meets the demands, carry out distribution for the third time in the time of can't meeting the demands, the distribution for the third time and the second time distribute identical.When distributing also backlog demand for the third time, after reducing to 0, rotating speed restarts to clockwise rotate, begin circulation from distributing for the first time, be distributed as for the first time behind the clockwise even earlier cloth rotating speed Va counterclockwise, after counterclockwise even cloth rotating speed Va rotates, accelerate to distribution rotating speed Vb immediately.
Water desorption curve of the present invention has four amount of unbalance detection-phases, the amount of unbalance detection and the middling speed pulse of the phase III drying that are respectively former and later two distribution rotational speed processes of distribution of pulses of water desorption curve second stage reach last drying amount of unbalance detection before before, the detection amount of unbalance that distributes everywhere adopts dotted line to represent as shown in Figure 2, promptly when meeting the demands, carries out detected amount of unbalance next procedure, and amount of unbalance then needs to distribute again and detect amount of unbalance can't meet the demands the time.Because the amount of unbalance of distribution rotational speed process detects before the distribution of pulses of second stage, spare the amount of unbalance detection after the cloth stage enters the distribution rotating speed afterwards for trembling of phase I in the water desorption curve is diffusing, therefore if should locate through repeatedly distributing, then distribution curve is identical with curve shown in Figure 3; Other three places amount of unbalance detects to redistribute when not meeting the demands then and circulates according to distribution for the second time, distribution for the third time, distribution for the first time, distribution for the second time.
Dry and last drying amount of unbalance detection distribution before for low speed pulse drying, middling speed pulse, promptly, the step of carrying out after the redistribution is that low speed pulse drying, middling speed pulse dry or last drying, and the acceleration that distributes for arbitrary time during then three times in the redistribution distribute when satisfying amount of unbalance and requiring the back to carry out described various the drying is identical.And detect distributed process for the amount of unbalance before the distribution of pulses, then, to distribute corresponding all different to the acceleration of distribution of pulses rotating speed by the distribution rotating speed in the redistribution for three times, correspond to respectively: the acceleration a1 that carry out the good back that distributes for the first time, the acceleration a2 of back execution for the second time well distributes, the acceleration a3 that carries out after distributing well for the third time has a1＞a2＞a3.This setting can be avoided shown in Fig. 1 d or the different and imbalance that causes of load clothing water outlet and the variety of problems that causes better.
The rotating speed of each stage wash tube and acceleration are according to drive motors, the cylindric washer capacity of washing machine and the different set of dewater clothing material, weight at every turn in the water desorption curve of the present invention.Dehydration controlling method of the present invention is fit to have the washing machine of all kinds and the model of dehydrating function; above-mentioned data only are that the preferred embodiments of the present invention are described; be not that design of the present invention and scope are limited; under the prerequisite that does not break away from design philosophy of the present invention; the various changes and modifications that those skilled in the art make technical scheme of the present invention all belong to protection scope of the present invention.
Claims (10)
1. laundry machine dehydration control method is characterized in that: this method is for after finishing in the washing stage, and following each stage is carried out in control:
At first, tremble the even cloth stage of loosing, cylindric washer arrives distribution phase with the after-acceleration of forward and reverse even cloth rotational speed;
Secondly, distribution phase, comprise distribution rotational speed, distribution of pulses rotational speed, three steps of distribution rotational speed, wherein all need to detect amount of unbalance in former and later two distribution rotational speed processes, if amount of unbalance meets the demands and then directly carries out the later step of step separately,, amount of unbalance then do not carry out redistribution if not meeting the demands;
Once more, pulse dries the stage, the pulse that comprises a plurality of different rotating speeds dries step, each pulse dries in the step all needs to detect amount of unbalance, then directly carry out the later step that different rotating speeds pulse separately dries if amount of unbalance meets the demands, then do not carry out redistribution if amount of unbalance does not meet the demands;
At last, dry the stage at last, the control maximum speed is finished clothes dewatering.
2. a kind of laundry machine dehydration control method according to claim 1, it is characterized in that: described trembling the even cloth stage of loosing, cylindric washer is all respectively rotating once with even cloth rotating speed clockwise and counterclockwise, the back is counterclockwise clockwise earlier, each direction rotation time is not more than 5s, and even cloth rotating speed is 60～75rpm.
3. a kind of laundry machine dehydration control method according to claim 1, it is characterized in that: described redistribution is to be distributed by three repetitive cycling that constitute in order successively that distribute, each redistribution is by the beginning that distributes for the second time, be distributed as for the second time, earlier with rotating speed reduction of speed to 0, rotate counterclockwise then and reach the even cloth rotating speed of trembling the even cloth stage of loosing, carry out the distribution rotational speed of distribution phase again and detect amount of unbalance, when meeting the demands, carries out amount of unbalance later step, carry out for the third time in the time of can't meeting the demands and distribute, the distribution for the third time and the second time distribute identical, when distributing also backlog demand for the third time, again begin circulation from distributing for the first time after rotating speed reduces to 0, be distributed as for the first time behind the clockwise even earlier cloth rotating speed counterclockwise, after counterclockwise even cloth rotational speed, accelerate to the distribution rotating speed immediately.
4. a kind of laundry machine dehydration control method according to claim 3, it is characterized in that: if the step of carrying out after the redistribution is the pulse drying and the last drying of variant rotating speed, then, arbitrary time acceleration of satisfying when carrying out described various the drying after the amount of unbalance requirement of distributing is identical in the redistribution process.
5. a kind of laundry machine dehydration control method according to claim 3, it is characterized in that: if the step of carrying out after the redistribution is the distribution of pulses rotational speed, then, to distribute corresponding all different to the acceleration of distribution of pulses rotating speed by the distribution rotating speed in the redistribution for three times, the acceleration a1 of back execution for the first time well distributes, the acceleration a2 that carries out after distribution for the second time is good, the acceleration a3 of back execution well that distributes for the third time, a1＞a2＞a3.
6. a kind of laundry machine dehydration control method according to claim 1, it is characterized in that: described pulse dries the stage, comprise that successively low speed pulse drying and middling speed pulse dry, the low speed pulse dries the range of speeds: 350～450rpm, and the middling speed pulse dries the range of speeds: 550～650rpm.
7. a kind of laundry machine dehydration control method according to claim 1, it is characterized in that: described cylindric washer is in each stage rotation process of dehydration control, remove the first time of trembling loose even cloth stage and redistribution in the distributed process earlier with clockwise again so that counterclockwise each rotates once, all the other are all according to counterclockwise rotating.
8. a kind of laundry machine dehydration control method according to claim 1 is characterized in that: described distribution rotating speed is 85～105rpm, and the distribution of pulses rotating speed is 120～250rpm.
9. a kind of laundry machine dehydration control method according to claim 1 is characterized in that: described maximum speed is 800～2000rpm.
10. according to the arbitrary described a kind of laundry machine dehydration control method of claim 1-9, it is characterized in that: the rotating speed of each stage wash tube and acceleration are according to drive motors, the cylindric washer capacity of washing machine and the different set of dewater clothing material, weight at every turn.
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Effective date of registration: 20160715 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Qingdao Haier Drum Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant before: haier group corporation Applicant before: Qingdao Haier Drum Washing Machine Co., Ltd. |
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