CN105220402A - A kind of washing machine dehydration procedure control method and washing machine - Google Patents
A kind of washing machine dehydration procedure control method and washing machine Download PDFInfo
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- CN105220402A CN105220402A CN201410239987.2A CN201410239987A CN105220402A CN 105220402 A CN105220402 A CN 105220402A CN 201410239987 A CN201410239987 A CN 201410239987A CN 105220402 A CN105220402 A CN 105220402A
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Abstract
The invention provides a kind of washing machine dehydration procedure control method, comprise the following steps: step 1, starter motor start to dewater and perform step 2; Step 2, to detect at interval of the parameters of electric power of certain hour to motor and by the parameter value that obtains compared with its normal range value, whether in normal range (NR), to perform step 3 or 4 respectively depending on it; Step 3, not in normal range (NR) time decelerating through motor run and stop detecting, again accelerate after being down to a certain speed, and perform step 2 until dewatering time at the expiration; Step 4, in normal range (NR) time motor normally run and continue to perform step 2 until dewatering time at the expiration.The present invention also provides a kind of washing machine, comprises the motor parameters of electric power checkout gear be connected with the information processor of washing machine.Judge whether there is foreign matter between interior outer barrel by motor parameters of electric power in dehydration, if having, at the bottom of decelerating through motor being run foreign matter is fallen into barrel, the foreign matter realized in dehydration automatically detects and gets rid of.
Description
Technical field
The present invention relates to a kind of dehydration controlling method and washing machine, especially a kind of washing machine dehydration procedure control method and washing machine, belong to washing machine field.
Background technology
The foreign matter such as coin or button has dropped between the interior outer barrel of washing machine because of carelessness, when washing machine carries out dehydrating operations, foreign matter disorderly can fly between interior outer barrel, existing washing machine, no matter rotary drum washing machine or roller washing machine, major part prevents the foreign matter design remained in internal structure of washing machine from being all from interior bucket, the configuration aspects of impeller or draining valve solves, prevent foreign matter from falling into as much as possible and after dehydration terminates, foreign matter is flushed in foreign matter collection device by current when to there is foreign matter between interior outer barrel or between interior outer barrel, but find that there is in dehydration foreign matter fly in circles between interior outer barrel internal outer barrel impact time, can only accept passively and can not exist and in dehydration, remove foreign matter by active detecting foreign matter, the damage of device for washing machine may be caused thus, or stop laundry machine dehydration action by user's active braking and manually intake to remove foreign matter, but this action need user manual intervention is dewatered and is needed user at washing machine annex and Timeliness coverage, but in other instances, user is not necessarily by washing machine, and therefore foreign matter existence can produce noise or cause wearing and tearing to outer barrel in washing machine for a long time.
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, a kind of washing machine dehydration procedure control method and washing machine are provided, can active detecting is brought to foreign matter to washing machine in dehydration load change handling failure in time, avoid causing larger damage to machine and without the need to user intervention.
For solving the problems of the technologies described above, the present invention adopts the basic conception of technical scheme to be:
A kind of washing machine dehydration procedure control method, comprises the following steps:
Step 1, starter motor start dehydration procedure, and perform step 2;
Start when step 2, self-starting motor, and detect at interval of the parameters of electric power of certain hour to motor for washer and the normal range value of the parameter value obtained parameter is therewith compared, whether in normal range (NR), perform step 3 or 4 respectively depending on the parameter value obtained;
If when the parameter value that step 3 obtains is not in normal range (NR), then decelerating through motor runs and stops detecting, and again accelerates to proceed dehydration, and perform step 2 until the dewatering time of setting stops dehydration at the expiration after motor speed is down to a certain speed;
If when the parameter value that step 4 obtains is in normal range (NR), then motor normally runs, and continue to perform step 2 until the dewatering time of setting stops dehydration at the expiration;
The normal range value of described parameter refers to the value range of this parameters of electric power of motor under washing machine normal operation.
Further, the normal range value of the parameter startup stage that the normal range value of described parameter at least comprising laundry machine dehydration and in the dehydration stabilization sub stage.
Further, the normal range value of described parameter also comprises the normal range value of this parameter of laundry machine dehydration stop phase.
Further, detect the output current/output voltage of the motor of washing machine, and compare with the output current/output voltage normal range value of motor under washing machine normal operation.
Further, detect the output current/output voltage of the motor of washing machine, calculate the rate of change of the output current/output voltage of motor and compare with the normal range value of the rate of change of the output current/output voltage of motor under washing machine normal operation.
Further, the time point that the normal value of the output current/output voltage of motor in the three phases of laundry machine dehydration, normal value are corresponding and normal variation rate are determined known through experiment.
Further, while deceleration, in washing machine, water inlet is stopped again after water inlet.
Further, while decelerating through motor, in washing machine, enter the water of certain hour or in washing machine, enter a certain amount of water while decelerating through motor.
Further, the interval time of double detection is 0-100ms.
A kind of washing machine, comprise motor parameters of electric power checkout gear, parameters of electric power checkout gear is connected with the information processor of washing machine, and the washing machine dehydration procedure the control method more than information processor of described washing machine described in any one controls washing machine and dewaters.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
A kind of washing machine dehydration procedure control method of the present invention, fly in circles between interior outer barrel because the foreign matter be present in dehydration in washing machine between outer barrel rotates with interior bucket and make bucket, the parameters of electric power of motor is had an impact simultaneously, judge whether there is foreign matter between outer barrel in washing machine by detecting the parameters of electric power of motor and compare with the value of this parameters of electric power of motor under washing machine normal operation in dehydration, if when the parameter value obtained is not in normal range (NR), then think to there is foreign matter, decelerating through motor is run, at the bottom of foreign matter is sunk down into barrel, the infringement that may cause washing machine when having foreign matter and user not discover when also prevent laundry machine dehydration without the need to user's manual intervention dehydration between interior outer barrel.
A kind of washing machine of the present invention, carry out detection and to compare with normal value judging that whether there is foreign matter in washing machine between outer barrel makes bucket to the parameters of electric power of motor by motor parameters of electric power checkout gear, and by aforementioned washing machine dehydration procedure control method, foreign matter is processed to the infringement of avoiding foreign matter to cause.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the flow chart of washing machine dehydration procedure control method in embodiment one or embodiment two.
Fig. 2 is under normal circumstances and current versus time curve figure under there is foreign matter situation.
Detailed description of the invention
Detecting the parameters of electric power of motor can be detect the output current/output voltage of motor, and by the output current/output voltage of motor that obtains compared with its normal range value, namely compare with the value range of the output current/output voltage of motor under washing machine normal operation, whether the value depending on the output current/output voltage of motor obtained judges whether have foreign matter between interior outer barrel in normal range (NR).If the value of the output current/output voltage of the motor obtained in normal range (NR), then not thinks to there is foreign matter, if the value of the output current/output voltage of the motor obtained is not in normal range (NR), then think to there is foreign matter.
Or the output current/output voltage of motor is detected, and the rate of change calculated the output current/output voltage of motor, by the rate of change of the output current/output voltage of motor that obtains compared with its normal range value, namely compare with the value range of the output current/output voltage rate of change of motor under washing machine normal operation, whether the value depending on the rate of change of the output current/output voltage of motor obtained judges whether have foreign matter between interior outer barrel in normal range (NR).If the rate of change value of the output current/output voltage of the motor obtained in normal range (NR), then not thinks to there is foreign matter, if the rate of change value of the output current/output voltage of the motor obtained is not in normal range (NR), then think to there is foreign matter.
Embodiment one
In the present embodiment, the output current of motor is detected, and calculate the rate of change of the output current of motor, by the rate of change of the output current of motor that obtains compared with its normal range value, namely compare with the value range of the output current rate of change of motor under washing machine normal operation, whether the value depending on the rate of change of the output current of motor obtained judges whether have foreign matter between interior outer barrel in normal range (NR).
As shown in Figure 1, a kind of washing machine dehydration procedure control method, comprises the following steps:
A kind of washing machine dehydration procedure control method, comprises the following steps:
Step 1, starter motor start dehydration procedure, and perform step 2;
When step 2, self-starting motor, and at interval of certain hour motor for washer output current detected and calculate the rate of change of motor output current in this time interval; By the rate of change value of motor output current that obtains compared with the normal range value of the rate of change of motor output current, whether in normal range (NR), perform step 3 or 4 respectively depending on it;
If when the value of the rate of change of step 3 motor output current is not in normal range (NR), then decelerating through motor runs and stops detecting, again accelerate to proceed dehydration after motor speed is down to a certain speed, and perform step 2 until the dewatering time of setting stops dehydration at the expiration;
If when the rate of change value of step 4 motor output current is in normal range (NR), then motor normally runs, and continue to perform step 2 until the dewatering time of setting stops dehydration at the expiration.
The normal range value of described parameter refers to the value range of this parameters of electric power of motor under washing machine normal operation.
Laundry machine dehydration is divided into three phases; the startup stage of dehydration, dewater stabilization sub stage and dehydration stop phase; this three phases motor is in respectively startup stage, stable operation stage, reduction of speed shut down the stage, and the normal range value of the time point that the normal value of the output current of motor in three phases, normal value are corresponding and motor output current rate of change is determined known through experiment.
In the present embodiment, the output current of machine startup stage that the output current of motor and the normal range value of output current rate of change at least comprising laundry machine dehydration and in the dehydration stabilization sub stage and the normal range value of output current rate of change, also comprise the output current of the motor of laundry machine dehydration stop phase and the normal range value of output current rate of change.
Can only comprise the first two stage in other embodiments, only detect the output current of the motor in the first two stage and calculate motor output current rate of change, then the motor output current rate of change this obtained compare with its normal range value.
The interval time of double detection is 0-100ms, and in the present embodiment, this time interval gets 80ms.
In step 3, motor speed to reduce to after certain setting value High Rotation Speed again.Decelerating through motor, then the interior bucket of washing machine also runs slowly, thus the foreign matter between interior outer barrel is sunk.
In order to more effectively remove foreign matter, intaking in washing machine while decelerating through motor, by the effect of water the foreign matter at the bottom of dropping on barrel being rushed in draining valve and getting rid of, avoid foreign matter to cause danger with interior bucket high-speed rotary constantly.Owing to being intake in dehydration procedure, therefore need stop water inlet after water inlet certain hour M second, each flooding time span is 1-20 second.Or enter a certain amount of water while decelerating through motor in washing machine, each water inlet measures 0.5-30 liter.In the present embodiment, intake with flooding time control, one time flooding time gets 10 seconds.
In order to carry out more effective protection to washing machine, decelerating through motor can by realizing motor power-off, and after decelerating through motor to certain setting value, energising realizes motor High Rotation Speed again.After motor power-off, machine shaft is in free rotary state based on inertia, but unregulated power is supplied to motor, therefore can avoid the infringement to motor.After detecting that motor speed is low to moderate a setting value, then to electrical power, make motor output kinetic energy again.
As shown in Figure 2; four width figure are respectively under normal circumstances or there is the current versus time curve figure in foreign matter situation; X-axis represents the time; Y-axis represents electric current, respectively corresponding motor current-vs-time relation under normal operating conditions or startup stage, stable operation stage, in the reduction of speed shutdown stage, there is current-vs-time relation when foreign matter is beaten barrel.
Can find out, under normal circumstances, current versus time curve is level and smooth curve, and when there is foreign matter, appearance is fluctuated by current versus time curve, the different stages exist foreign matter to beat barrel time, current versus time curve is different, but all can reflect, there is foreign matter between interior outer barrel when to beat barrel, there is impact to motor output current, motor output current is fluctuated, produce sudden change, thus can detect accordingly and judge in washing machine, between outer barrel, whether have foreign matter to exist.
As can be seen from the figure, current versus time curve is roughly divided into three phases, and the ascent stage in early stage, the decline stage in the stabilization sub stage in mid-term and later stage, corresponding electric motor starting stage, stable operation stage, reduction of speed shut down the stage respectively.Larger at the rate of change of ascent stage and decline stage motor output current.
Find in an experiment, at ascent stage, motor output current is less, interior bucket rotating speed is less, interior bucket rotates the deficiency of air produced and flys in circles to be involved in by foreign matter between interior outer barrel, and at the ascent stage close to the middle stable stage, along with the lifting of motor output current, interior bucket rotary speed accelerates thereupon, foreign matter can rotate with interior bucket the air-flow produced and fly in circles between interior outer barrel, in current versus time curve figure and Fig. 2 under normal operation in the first width figure, at ascent stage, the rate of change of output current is substantially identical.
Detected by interval and calculate the rate of change of the output current of motor, by the rate of change of the output current of the motor calculated compared with the normal range value of the rate of change of the output current through testing the motor determined under known washing machine normal operation, if the value of the rate of change of motor output current is not in normal range (NR), then actuating motor speed-down action and water inlet action.If in normal range (NR), then normally run and continue interval and detect, until the dewatering time of setting at the expiration, dehydration procedure terminates.
In the decline stage, the reduction of speed of corresponding motor shuts down the stage, and motor output current diminishes, and interior bucket rotating speed also reduces, and in the decline stage close to the middle stable stage, interior bucket rotary speed is very fast, and foreign matter can rotate with interior bucket the air-flow produced and fly in circles between interior outer barrel.In current versus time curve figure as can be seen from Fig. 2 under normal operation, in the decline stage, the rate of change of motor output current is substantially identical.Detected by interval and calculate the rate of change of the output current of motor, by the rate of change of the output current of the motor calculated compared with the normal range value of the rate of change of the output current through testing the motor determined under known washing machine normal operation, if the value of the rate of change of motor output current is not in normal range (NR), then actuating motor speed-down action.Owing to being now that the reduction of speed of motor shuts down the stage, therefore no longer intaking, in other embodiments, can not only slow down but also intake.
Due to washing machine under normal operating conditions, in three phases, the output current rate of change of the motor in each stage is basically identical, all there is no large sudden change, therefore, the output current rate of change of the motor in each stage all the reference change rate in stages respectively can add the normal range (NR) of an identical mobility scale as the output current rate of change in this stage.This reference change rate is determined known through experiment.
The value of this mobility scale is 1%-10%, namely be 1%-10% in the variable scope that reference change rate is upper and lower, in the present embodiment, this mobility scale value gets 5%, namely be 5% in the upper and lower variable scope of reference change rate, as the normal range (NR) of output current rate of change.
A kind of washing machine dehydration procedure control method of the present invention, by calculating motor output electric current measure in dehydration, relatively its rate of change judges whether there is foreign matter between interior outer barrel, if motor output current rate of change is not in normal range (NR), then think to there is foreign matter, decelerating through motor is made to run and intake in washing machine, pour in draining valve under the effect of water and get rid of at the bottom of foreign matter being slowed down to sink down into barrel, without the need to user's manual intervention, have foreign matter between interior outer barrel when also prevent laundry machine dehydration and user does not discover time the infringement that may cause washing machine.
Embodiment two
The difference of the present embodiment and embodiment one is: by detecting motor output voltage and calculating motor output voltage rate of change, the motor output voltage rate of change obtained is compared with its normal range value, in normal range (NR), whether judge whether have foreign matter make bucket with interior bucket rotation and carry out respective handling in washing machine between outer barrel, to prevent the infringement that foreign matter causes washing machine by it.
Embodiment three
A kind of washing machine, comprise motor detecting device for output current, motor detecting device for output current is connected with the information processor of washing machine.The information processor washing machine dehydration procedure control method performed in embodiment one of described washing machine controls washing machine and dewaters.
By motor detecting device for output current, motor output current is detected, information processor testing result being reached washing machine calculates its rate of change, the calculating motor output current rate of change of gained and the normal range value of motor output current rate of change compare by information processor, judge it whether in normal range (NR), according to result, information processor judges that whether there is foreign matter in washing machine in outer barrel makes bucket, if the rate of change of motor output current is not in normal range (NR), then think to there is foreign matter in outer barrel in washing machine, information processor sends signal to motor, make decelerating through motor, and send signal make water feed apparatus open intake in washing machine, and stop water inlet after a certain time, motor reduction and water inlet two means are utilized foreign matter to be sunk and foreign matter punching is discharged by draining valve to draining valve by water inlet, avoid the infringement that foreign matter may cause washing machine.
Embodiment four
A kind of washing machine, comprise motor output voltage checkout gear, motor output voltage checkout gear is connected with the information processor of washing machine.The information processor washing machine dehydration procedure control method performed in embodiment two of described washing machine controls washing machine and dewaters.
By motor output voltage checkout gear, motor output voltage is detected, information processor testing result being reached washing machine calculates its rate of change, the calculating motor output voltage rate of change of gained and the normal range value of motor output voltage rate of change compare by information processor, judge it whether in normal range (NR), according to result, information processor judges that whether there is foreign matter in washing machine in outer barrel makes bucket, if the rate of change of motor output voltage is not in normal range (NR), then think to there is foreign matter in outer barrel in washing machine, information processor sends signal to motor, make decelerating through motor, and send signal make water feed apparatus open intake in washing machine, and stop water inlet after a certain time, motor reduction and water inlet two means are utilized foreign matter to be sunk and foreign matter punching is discharged by draining valve to draining valve by water inlet, avoid the infringement that foreign matter may cause washing machine.
Embodiment in above-described embodiment can combine further or replace; and embodiment is only be described the preferred embodiments of the present invention; not the spirit and scope of the present invention are limited; under the prerequisite not departing from design philosophy of the present invention; the various changes and modifications that in this area, professional and technical personnel makes technical scheme of the present invention, all belong to protection scope of the present invention.
Claims (10)
1. a washing machine dehydration procedure control method, is characterized in that: comprise the following steps:
Step 1, starter motor start dehydration procedure, and perform step 2;
Start when step 2, self-starting motor, and detect at interval of the parameters of electric power of certain hour to motor for washer and the normal range value of the parameter value obtained parameter is therewith compared, whether in normal range (NR), perform step 3 or 4 respectively depending on the parameter value obtained;
If when the parameter value that step 3 obtains is not in normal range (NR), then decelerating through motor runs and stops detecting, and again accelerates to proceed dehydration, and perform step 2 until the dewatering time of setting stops dehydration at the expiration after motor speed is down to a certain speed;
If when the parameter value that step 4 obtains is in normal range (NR), then motor normally runs, and continue to perform step 2 until the dewatering time of setting stops dehydration at the expiration;
The normal range value of described parameter refers to the value range of this parameters of electric power of motor under washing machine normal operation.
2. a kind of washing machine dehydration procedure control method according to claim 1, is characterized in that: the normal range value of the parameter startup stage that the normal range value of described parameter at least comprising laundry machine dehydration and in the dehydration stabilization sub stage.
3. a kind of washing machine dehydration procedure control method according to claim 2, is characterized in that: the normal range value of described parameter also comprises the normal range value of this parameter of laundry machine dehydration stop phase.
4. a kind of washing machine dehydration procedure control method according to any one of claim 1-3, it is characterized in that: the output current/output voltage detecting the motor of washing machine, and compare with the output current/output voltage normal range value of motor under washing machine normal operation.
5. a kind of washing machine dehydration procedure control method according to any one of claim 1-3, it is characterized in that: the output current/output voltage detecting the motor of washing machine, calculate the rate of change of the output current/output voltage of motor and compare with the normal range value of the rate of change of the output current/output voltage of motor under washing machine normal operation.
6. a kind of washing machine dehydration procedure control method according to claim 5, is characterized in that: the time point that the normal value of the output current/output voltage of motor in the three phases of laundry machine dehydration, normal value are corresponding and normal variation rate are determined known through experiment.
7. a kind of washing machine dehydration procedure control method according to any one of claim 1-3, is characterized in that: while deceleration, stop water inlet again in washing machine after water inlet.
8. a kind of washing machine dehydration procedure control method according to any one of claim 1-3, is characterized in that: while decelerating through motor, enter the water of certain hour in washing machine or in washing machine, enter a certain amount of water while decelerating through motor.
9. a kind of washing machine dehydration procedure control method according to any one of claim 1-3, is characterized in that: the interval time of double detection is 0-100ms.
10. a washing machine, it is characterized in that: comprise motor parameters of electric power checkout gear, parameters of electric power checkout gear is connected with the information processor of washing machine, and the information processor enforcement of rights of described washing machine requires that the washing machine dehydration procedure control method of 1-9 described in any one controls washing machine and dewater.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107447474A (en) * | 2017-08-02 | 2017-12-08 | 珠海格力电器股份有限公司 | Drying control method, device, drying machine, storage medium and processor |
| CN108950982A (en) * | 2017-05-27 | 2018-12-07 | 无锡小天鹅股份有限公司 | Washing machine and control method and equipment for the washing machine |
| CN112095292A (en) * | 2019-05-28 | 2020-12-18 | 青岛海尔洗衣机有限公司 | Abnormity detection method for washing machine |
| CN112488589A (en) * | 2020-12-21 | 2021-03-12 | 青岛海尔科技有限公司 | Method and device for determining working condition of equipment and intelligent socket |
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| CN103386771A (en) * | 2012-05-09 | 2013-11-13 | 珠海格力电器股份有限公司 | Control device and control method for oil press |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108950982A (en) * | 2017-05-27 | 2018-12-07 | 无锡小天鹅股份有限公司 | Washing machine and control method and equipment for the washing machine |
| CN108950982B (en) * | 2017-05-27 | 2021-06-01 | 无锡小天鹅电器有限公司 | Washing machine and control method and apparatus for the same |
| CN107447474A (en) * | 2017-08-02 | 2017-12-08 | 珠海格力电器股份有限公司 | Drying control method, device, drying machine, storage medium and processor |
| CN107447474B (en) * | 2017-08-02 | 2019-08-06 | 珠海格力电器股份有限公司 | Drying control method, device, drying machine, storage medium and processor |
| CN112095292A (en) * | 2019-05-28 | 2020-12-18 | 青岛海尔洗衣机有限公司 | Abnormity detection method for washing machine |
| CN112095292B (en) * | 2019-05-28 | 2023-06-30 | 重庆海尔洗衣机有限公司 | Abnormality detection method for washing machine |
| CN112488589A (en) * | 2020-12-21 | 2021-03-12 | 青岛海尔科技有限公司 | Method and device for determining working condition of equipment and intelligent socket |
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| CN105220402B (en) | 2018-12-25 |
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