CN105220402B - 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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- CN105220402B CN105220402B CN201410239987.2A CN201410239987A CN105220402B CN 105220402 B CN105220402 B CN 105220402B CN 201410239987 A CN201410239987 A CN 201410239987A CN 105220402 B CN105220402 B CN 105220402B
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Abstract
The present invention provides a kind of washing machine dehydration procedure control method, comprising the following steps: step 1, starting motor start to be dehydrated and execute step 2；Step 2 detect and obtained parameter value compares with its normal range value at interval of parameters of electric power of the certain time to motor, whether executes step 3 or 4 respectively in the normal range depending on it；Step 3, not in the normal range when decelerating through motor run and stop detecting, accelerate again after being down to a certain speed, and execute step 2 until dewatering time expire；Step 4, in the normal range when motor operate normally and continue to execute step 2 until dewatering time expire.The present invention also provides a kind of washing machine, the motor parameters of electric power detection device being connect including the information processing unit with washing machine.Judge to make decelerating through motor operation that foreign matter be made to fall into a barrel bottom if having with the presence or absence of foreign matter between interior outer barrel, realize that the foreign matter in dehydration is detected and excluded automatically by motor parameters of electric power during the dehydration process.
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 belongs to washing machine field.
Background technique
The foreign matters such as coin or button have accidentally dropped between the interior outer barrel of washing machine, carry out dehydrating operations in washing machine
When foreign matter can disorderly fly between interior outer barrel, existing washing machine, no matter rotary drum washing machine or roller washing machine, largely prevent
The design that foreign matter remains in internal structure of washing machine is solved from the configuration aspects of interior bucket, impeller or drain valve,
Prevent that foreign matter from falling between interior outer barrel or there are lead to foreign matter after dehydration when foreign matter between interior outer barrel as much as possible
It crosses water flow to be flushed in foreign matter collection device, but discovery has foreign matter to fly in circles between interior outer barrel the impact of internal outer barrel during the dehydration process
When, it can only passively receive and be unable to active detecting foreign matter and exist and remove foreign matter during the dehydration process, thus may cause and wash
The damage of clothing machine device；Or laundry machine dehydration movement is stopped by user's active brake and is intake manually to remove foreign matter, but
This operation needs user's manual intervention to be dehydrated and needs user in washing machine attachment and find in time, but in other instances,
Not necessarily foreign matter presence can generate noise or cause to wear to outer barrel in washing machine user by washing machine, therefore for a long time.
In view of this present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of washing machine dehydration procedure control
Method processed and washing machine active detecting can load variation to washing machine bring to foreign matter and handle in time during the dehydration process
Failure avoids causing machine bigger damage and without user intervention.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
A kind of washing machine dehydration procedure control method, comprising the following steps:
Step 1, starting motor start dehydration procedure, and execute step 2；
When step 2, self-starting motor, and detected at interval of parameters of electric power of the certain time to motor for washer
And obtained parameter value compares with the normal range value of this parameter, whether distinguish in the normal range depending on obtained parameter value
Execute step 3 or 4；
If step 3, obtained parameter value not in the normal range when, decelerating through motor runs and stops detecting, in motor
Revolving speed is down to after a certain speed to be accelerated to continue to be dehydrated again, and executes step 2 until the dewatering time of setting stops at the expiration
Dehydration；
If step 4, obtained parameter value in the normal range when, motor operate normally, and continue to execute step 2 until
The dewatering time of setting stops dehydration at the expiration；
The normal range value of the parameter refers to the range of this parameters of electric power of motor under washing machine normal operation
Value.
Further, the normal range value of the parameter includes at least laundry machine dehydration startup stage and dehydration stabilization sub stage
In parameter normal range value.
Further, the normal range value of the parameter further includes the normal model of this parameter of laundry machine dehydration stop phase
Enclose value.
Further, detect output electric current/output voltage of the motor of washing machine, and under washing machine normal operation
Output electric current/output voltage normal range value of motor compares.
Further, the output electric current/output voltage for detecting the motor of washing machine calculates output electric current/output of motor
The change rate of voltage and under washing machine normal operation motor output electric current/output voltage change rate normal range (NR)
Value compares.
Further, in the three phases of laundry machine dehydration motor output electric current/output voltage normal value, normal value
Corresponding time point and normal variation rate are experimentally determined known.
Further, stop intaking again after intaking while slowing down into washing machine.
Further, while decelerating through motor into washing machine into the water of certain time or while decelerating through motor
Into washing machine into a certain amount of water.
Further, the interval time detected twice in succession is 0-100ms.
At the information of a kind of washing machine, including motor parameters of electric power detection device, parameters of electric power detection device and washing machine
Device connection is managed, washing machine dehydration procedure control method described in information processing unit any of the above one of the washing machine is come
Control washing machine is dehydrated.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
A kind of washing machine dehydration procedure control method of the present invention, due to being present in washing machine in dehydration between outer barrel
Foreign matter rotated with interior bucket and fly in circles between interior outer barrel and make bucket, while the parameters of electric power of motor is had an impact, by
Value ratio in dehydration to the parameters of electric power detection of motor and with this parameters of electric power of motor under washing machine normal operation
Relatively judge in washing machine between outer barrel with the presence or absence of foreign matter, if obtained parameter value not in the normal range when, then it is assumed that deposit
In foreign matter, decelerating through motor is run, foreign matter is made to sink down into a barrel bottom, also prevents laundry machine dehydration without user's manual intervention dehydration
When interior outer barrel between have foreign matter and the damage that may cause to washing machine of when user does not discover.
A kind of washing machine of the present invention, by parameters of electric power of the motor parameters of electric power detection device to motor carry out detection and with
Normal value relatively judges to make bucket with the presence or absence of foreign matter between outer barrel in washing machine, and is controlled by aforementioned washing machine dehydration procedure
Method is handled foreign matter the damage that may cause to avoid foreign matter.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
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 there are the current versus time curve figures in the case of foreign matter.
Specific embodiment
Output electric current/the output voltage that can be the parameters of electric power detection of motor to motor detects, and will obtain
Motor output electric current/output voltage compared with its normal range value, i.e., with motor under washing machine normal operation
Output electric current/output voltage value range compares, and whether output electric current/output voltage value depending on obtained motor is in normal model
It encloses and interior judges whether to have foreign matter between interior outer barrel.If output electric current/output voltage value of obtained motor is in normal range (NR)
It is interior, then it is assumed that foreign matter to be not present, if output electric current/output voltage value of obtained motor is not in the normal range, then it is assumed that
There are foreign matters.
Or output electric current/output voltage of motor is detected, and calculate output electric current/output voltage to motor
Change rate, output electric current/output voltage change rate of obtained motor is compared with its normal range value, i.e., with laundry
Output electric current/output voltage change rate value range of motor compares under machine normal operation, depending on the output of obtained motor
Whether the value of electric current/output voltage change rate judges whether to have foreign matter between interior outer barrel in the normal range.If obtaining
Output electric current/output voltage rate of change value of motor is in the normal range, then it is assumed that foreign matter is not present, if obtained motor
Export electric current/output voltage rate of change value not in the normal range, then it is assumed that there are foreign matters.
Embodiment one
In the present embodiment, the output electric current of motor is detected, and calculates the change rate of the output electric current of motor, it will
Obtained motor output electric current change rate compared with its normal range value, i.e., with motor under washing machine normal operation
The value range of output current changing rate compare, depending on the output electric current of obtained motor change rate value whether in normal range (NR)
Inside judge whether to have foreign matter between interior outer barrel.
As shown in Figure 1, a kind of washing machine dehydration procedure control method, comprising the following steps:
A kind of washing machine dehydration procedure control method, comprising the following steps:
Step 1, starting motor start dehydration procedure, and execute step 2；
When step 2, self-starting motor, and motor for washer output electric current is detected simultaneously at interval of certain time
Calculate the change rate of motor output electric current in this time interval；The rate of change value of obtained motor output electric current and motor are exported
The normal range value of the change rate of electric current compares, and whether executes step 3 or 4 respectively in the normal range depending on it；
If step 3, motor export electric current change rate value not in the normal range when, decelerating through motor runs and stops
Detection accelerates to continue to be dehydrated after motor speed is down to a certain speed again, and executes step 2 when the dehydration of setting
Between at the expiration stop dehydration；
If step 4, motor export the rate of change value of electric current in the normal range, motor is operated normally, and continues to hold
Row step 2 is until the dewatering time of setting stops dehydration at the expiration.
The normal range value of the parameter refers to the range of this parameters of electric power of motor under washing machine normal operation
Value.
Laundry machine dehydration is divided into three phases, dehydration startup stage, dehydration stabilization sub stage and dehydration stop phase, and herein three
A stage motor is respectively at startup stage, stable operation stage, reduction of speed shutdown phase, the output electric current of motor in three phases
Normal value, the normal range value of normal value corresponding time point and motor output current changing rate it is experimentally determined known.
In the present embodiment, the normal range value of the output electric current of motor and output current changing rate includes at least washing machine
It is dehydrated the output electric current of startup stage and the machine being dehydrated in the stabilization sub stage and exports the normal range value of current changing rate, further include
The output electric current of the motor of laundry machine dehydration stop phase and the normal range value for exporting current changing rate.
It in other embodiments can only include the first two stage, only detect the output electric current of the motor in the first two stage simultaneously
It calculates motor and exports current changing rate, then by obtained motor output current changing rate compared with its normal range value.
The interval time detected twice in succession is 0-100ms, and in the present embodiment, which takes 80ms.
In step 3, motor speed reduces to after some setting value high speed rotation again.Decelerating through motor, then washing machine is interior
Bucket also runs slowly, so that the foreign matter between interior outer barrel be made to sink.
In order to more effectively remove foreign matter, decelerating through motor while, intakes into washing machine, will be fallen in by the effect of water
The foreign matter at bucket bottom, which rushes in drain valve, to be excluded, and foreign matter is avoided constantly to cause danger with interior bucket high speed rotation.Due to being de-
It intakes in water program, therefore water inlet need to be stopped after water inlet certain time M seconds, each flooding time value range is 1-20 seconds.
Alternatively, water inlet measures 0.5-30 liter every time into washing machine into a certain amount of water while decelerating through motor.In the present embodiment
In, water inlet is controlled with flooding time, and a flooding time takes 10 seconds.
In order to more effectively be protected to washing machine, decelerating through motor can be realized by powering off to motor, be subtracted in motor
It is once again powered up after speed to some setting value and realizes motor high speed rotation.After motor power-off, machine shaft is based on inertia and is in certainly
By rotary state, but, unregulated power is supplied to motor, therefore is avoided that the damage to motor.When detecting motor speed down to one
After setting value, then to electrical power, make motor output kinetic energy again.
As shown in Fig. 2, four width figures are respectively under normal circumstances or there are the current versus time curve figure in the case of foreign matter, X-axis
Indicate the time, Y-axis indicates electric current, respectively correspond motor current-vs-time relationship under normal operating conditions or startup stage,
Current-vs-time relationship when bucket is beaten in stable operation stage, reduction of speed shutdown phase there are foreign matter.
As can be seen that under normal circumstances, current versus time curve is smooth curve, and there are when foreign matter, electric current-when
Half interval contour will fluctuate, and when there is foreign matter in the different stages and making bucket, current versus time curve is different, but can reflect
Out, when making bucket there are foreign matter between interior outer barrel, existing on motor output electric current influences, and motor output electric current is fluctuated, generates
Mutation, thus can detect and whether be judged in washing machine between outer barrel with the presence of foreign matter accordingly.
It can be seen from the figure that current versus time curve is roughly divided into three phases, the ascent stage of early period, mid-term it is steady
The decline stage for determining stage and later period respectively corresponds electric motor starting stage, stable operation stage, reduction of speed shutdown phase.In raised bench
The change rate of section and decline stage motor output electric current is larger.
It finds in an experiment, in ascent stage, motor output electric current is smaller, and interior bucket revolving speed is smaller, and interior bucket rotation generates
Deficiency of air is flown in circles so that foreign matter to be involved between interior outer barrel, and in the ascent stage close to the middle stable stage, as motor is defeated
The promotion of electric current out, interior bucket rotation speed become faster therewith, and foreign matter can rotate the air-flow generated with interior bucket and fly in circles between interior outer barrel,
As can be seen that output is electric in ascent stage in the first width figure in current versus time curve figure, that is, Fig. 2 under from normal operation
The change rate of stream is essentially identical.
The change rate that the output electric current of motor is detected and be calculated by interval, by the output electricity for the motor being calculated
The change rate of the output electric current of motor under the change rate of stream and experimentally determined known washing machine normal operation is just
Normal value range compares, if the value of the change rate of motor output electric current is not in the normal range, actuating motor speed-down action
It is acted with water inlet.If in the normal range, operating normally and continuing interval detection, until the dewatering time of setting expires,
Dehydration procedure terminates.
In the decline stage, the reduction of speed shutdown phase of corresponding motor, motor output electric current becomes smaller, and interior bucket revolving speed also reduces,
Close to the decline stage in middle stable stage, interior bucket rotation speed is very fast, and foreign matter can rotate the air-flow generated inside and outside with interior bucket
It flys in circles between bucket.From the current versus time curve figure under normal operation in Fig. 2 as can be seen that in the decline stage, motor is defeated
The change rate of electric current is essentially identical out.The change rate that the output electric current of motor is detected and be calculated by interval, will calculate
The output of the change rate and the motor under experimentally determined known washing machine normal operation of the output electric current of the motor arrived
The normal range value of the change rate of electric current compares, if the value of the change rate of motor output electric current is not in the normal range,
Actuating motor speed-down action.Due to being the reduction of speed shutdown phase of motor at this time, no longer intake, in other embodiments
In, not only it can slow down but also intake.
Under normal operating conditions due to washing machine, in three phases the motor in each stage output current changing rate base
This is consistent, and not big mutation, therefore, the output current changing rate of the motor in each stage can be in the base in stages respectively
Add an identical mobility scale as the normal range (NR) of the output current changing rate in this stage on quasi- change rate.Benchmark variation
Rate is experimentally determined known.
The value of this mobility scale is 1%-10%, i.e., the variable range above and below reference change rate is 1%-10%,
In the present embodiment, which takes 5%, i.e., variable range is 5% above and below reference change rate, as output electric current
The normal range (NR) of change rate.
A kind of washing machine dehydration procedure control method of the present invention, by during the dehydration process to motor output electric current measure simultaneously
It calculates, compare its change rate to judge with the presence or absence of foreign matter between interior outer barrel, if motor exports current changing rate not normal
In range, then it is assumed that there are foreign matter, run decelerating through motor and intake into washing machine, make foreign matter deceleration sink down into barrel bottom and
It pours in drain valve and excludes under the action of water, be not necessarily to user's manual intervention, have between interior outer barrel when also preventing laundry machine dehydration
The damage that foreign matter and user may cause washing machine when not discovering.
Embodiment two
The difference between this embodiment and the first embodiment lies in: pass through detection motor output voltage and calculates the change of motor output voltage
Whether rate is sentenced by it in the normal range by obtained motor output voltage change rate compared with its normal range value
Whether there is foreign matter to make bucket with interior bucket rotation between outer barrel in disconnected washing machine and carry out respective handling, prevents foreign matter from causing to washing machine
Damage.
Embodiment three
A kind of washing machine, including motor detecting device for output current, the letter of motor detecting device for output current and washing machine
Cease processing unit connection.The information processing unit of the washing machine executes the washing machine dehydration procedure control method in embodiment one
It is dehydrated to control washing machine.
Electric current is exported to motor by motor detecting device for output current to detect, and be will test result and is reached washing machine
Information processing unit calculates its change rate, and information processing unit will calculate resulting motor output current changing rate and motor exports
The normal range value of current changing rate is compared, and whether in the normal range judges it, information processing unit according to result come
Judge in washing machine to make bucket with the presence or absence of foreign matter in outer barrel, if motor exports the change rate of electric current not in the normal range,
Think that there are foreign matters in outer barrel in washing machine, information processing unit, which issues signal, makes decelerating through motor to motor, and issues signal to make
Water feed apparatus is opened intakes into washing machine, and stops water inlet after a certain time, utilizes two means of motor reduction and water inlet
Make foreign matter sink and pass through to intake to rush foreign matter to drain valve to be discharged by drain valve, foreign matter is avoided to may cause washing machine
Damage.
Example IV
A kind of washing machine, including motor output voltage detection device, the letter of motor output voltage detection device and washing machine
Cease processing unit connection.The information processing unit of the washing machine executes the washing machine dehydration procedure control method in embodiment two
It is dehydrated to control washing machine.
Motor output voltage is detected by motor output voltage detection device, result is will test and reaches washing machine
Information processing unit calculates its change rate, and information processing unit will calculate resulting motor output voltage change rate and motor exports
The normal range value of voltage change ratio is compared, and whether in the normal range judges it, information processing unit according to result come
Judge in washing machine to make bucket with the presence or absence of foreign matter in outer barrel, if the change rate of motor output voltage is not in the normal range,
Think that there are foreign matters in outer barrel in washing machine, information processing unit, which issues signal, makes decelerating through motor to motor, and issues signal to make
Water feed apparatus is opened intakes into washing machine, and stops water inlet after a certain time, utilizes two means of motor reduction and water inlet
Make foreign matter sink and pass through to intake to rush foreign matter to drain valve to be discharged by drain valve, foreign matter is avoided to may cause washing machine
Damage.
Embodiment in above-described embodiment can be further combined or replace, and embodiment is only to of the invention
Preferred embodiment is described, and it is not intended to limit the concept and scope of the present invention, is not departing from design philosophy of the present invention
Under the premise of, the various changes and modifications that professional and technical personnel in the art make technical solution of the present invention belong to this hair
Bright protection scope.
Claims (9)
1. a kind of washing machine dehydration procedure control method, it is characterised in that: the following steps are included:
Step 1, starting motor start dehydration procedure, and execute step 2；
When step 2, self-starting motor, and is detected and incited somebody to action at interval of parameters of electric power of the certain time to motor for washer
Whether obtained parameter value executes compared with the normal range value of this parameter depending on obtained parameter value respectively in the normal range
Step 3 or 4；
If step 3, obtained parameter value not in the normal range when, decelerating through motor runs and stops detecting, in motor speed
It is down to after a certain speed and accelerates to continue to be dehydrated again, and execute step 2 until the dewatering time of setting stops dehydration at the expiration；
If step 4, obtained parameter value in the normal range when, motor operate normally, and continue to execute step 2 until setting
Dewatering time at the expiration stop dehydration；
The normal range value of the parameter refers to the value range of the parameters of electric power of motor under washing machine normal operation, is subtracting
Stop intaking again after intaking while fast into washing machine.
2. a kind of washing machine dehydration procedure control method according to claim 1, it is characterised in that: the parameter it is normal
Value range includes at least the normal range value of laundry machine dehydration startup stage and the parameter being dehydrated in the stabilization sub stage.
3. a kind of washing machine dehydration procedure control method according to claim 2, it is characterised in that: the parameter it is normal
Value range further includes 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 claim 1-3, it is characterised in that: detection is washed
Output electric current/output voltage of the motor of clothing machine, and output electric current/output voltage with motor under washing machine normal operation
Normal range value compares.
5. a kind of washing machine dehydration procedure control method according to claim 1-3, it is characterised in that: detection is washed
Output electric current/output voltage of the motor of clothing machine, calculate output electric current/output voltage change rate of motor and with washing machine just
The normal range value of output electric current/output voltage change rate of motor compares under normal working condition.
6. a kind of washing machine dehydration procedure control method according to claim 5, it is characterised in that: the three of laundry machine dehydration
The normal range (NR) of output electric current/output voltage normal value of motor, normal value corresponding time point and change rate in a stage
It is worth experimentally determined known.
7. a kind of washing machine dehydration procedure control method according to claim 1-3, it is characterised in that: in motor
While deceleration into washing machine into the water of certain time or while decelerating through motor into washing machine into a certain amount of water.
8. a kind of washing machine dehydration procedure control method according to claim 1-3, it is characterised in that: continuous two
The interval time of secondary detection is 0-100ms.
9. a kind of washing machine, it is characterised in that: including motor parameters of electric power detection device, parameters of electric power detection device and washing machine
Information processing unit connection, the information processing unit perform claim of the washing machine requires laundry described in 1-8 any one
Machine dehydration procedure control method is dehydrated to control washing machine.
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| CN201410239987.2A CN105220402B (en) | 2014-05-30 | 2014-05-30 | A kind of washing machine dehydration procedure control method and washing machine |
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| 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 |
| 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 |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100432A (en) * | 1985-02-20 | 1986-08-20 | 三菱电机株式会社 | Washing machine |
| 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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2014
- 2014-05-30 CN CN201410239987.2A patent/CN105220402B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100432A (en) * | 1985-02-20 | 1986-08-20 | 三菱电机株式会社 | Washing machine |
| 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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