CN104195788A - Washing method of front loading washing machine - Google Patents

Washing method of front loading washing machine Download PDF

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Publication number
CN104195788A
CN104195788A CN201410390927.0A CN201410390927A CN104195788A CN 104195788 A CN104195788 A CN 104195788A CN 201410390927 A CN201410390927 A CN 201410390927A CN 104195788 A CN104195788 A CN 104195788A
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China
Prior art keywords
washing
rotating speed
beat
water
washing machine
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Granted
Application number
CN201410390927.0A
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Chinese (zh)
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CN104195788B (en
Inventor
陈豫霖
花辉
黄明德
黄琴
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Wuxi Little Swan Electric Co Ltd
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Wuxi Little Swan General Appliance Co Ltd
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Priority to CN201410390927.0A priority Critical patent/CN104195788B/en
Publication of CN104195788A publication Critical patent/CN104195788A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 

Abstract

The invention relates to a washing method of a front loading washing machine. One rotating washing beat is inserted every a plurality of beating washing beats, the rotating speed of a drum is increased to drive clothes to rotate along with the drum, water is driven by the rotating clothes and thrown out from the clothes to an outer drum under the effect of centrifugal force, the water in the outer drum flows back to the lower portion of the outer drum under the effect of gravity force and is driven by the clothes again, the water is repeatedly driven and thrown out and falls down from the rotating clothes to conduct reciprocating circulation, water flow is formed to wash the rotating clothes, and the cleanness degree of the clothes is improved almost without damage to the clothes. In the process that the water is repeatedly driven and thrown out and falls down from the rotating clothes, washing powder is further sufficiently stirred, so that the washing powder can more rapidly and better play effects, and the cleanness degree of the clothes can be increased as well. By means of the washing method, on the premise that the same washing effect is achieved, the amount of utilization electricity, the amount of the utilization water and the amount of the utilization washing powder can be reduced, and energy conservation and environment protection are achieved.

Description

The washing methods of roller washing machine
Technical field
The present invention relates to a kind of roller washing machine, especially relate to a kind of washing methods of roller washing machine.
Background technology
Washing is exactly constantly to destroy the adhesive force of dirt on clothing, finally makes dirt depart from the process of clothing., by clothing wash clean, must possess water, washing agent and mechanical force, this three is called the three elements of washing process simultaneously.The mixing of washing agent and water in inner barrel of roller washing machine, after washing clothes is put into wherein, produce the necessary mechanical force of laundry by the motion of washing machine drum.The washing process more complicated of washing machine, influential because have to clean result: the mechanism that the physics chemical action of washing agent, wash time, washing water temperature, washing machine produce etc.
Clean result comprises the washability of clothing, and washing finishes residual on clothing of rear washing agent, and damage to clothing etc.For washing machine, except considering clean result, the power and water consuming in washing process is also to consider.This just makes washing machine in the time that washing methods designs, face the selection of many contradictions.For example, obtain better washability, can extend wash time, but can increase the damage of clothing; Also washing water temperature can be improved, but electric consumption can be increased.
The whole laundry processes of roller washing machine need to be passed through washing, rinsing and dehydration conventionally, and the current common washing process of roller washing machine as shown in Figure 1.Washing machine starts after button presses, and timer starts timing, and time detector, level switch, Temperature Detector are started working simultaneously.
Time detector detects when the time does not reach the default wash time t of washing machine, and motor for washer specifically washs beat by washing machine and turns and stop; In the time that time detector detects that the time has reached the default wash time t of washing machine, washing process finishes, and enters rinse stage.
When level switch detects water level lower than water level h, water intaking valve is opened, washing machine inflow; Heater can not be opened, and avoids heater dry combustion method in the situation that there is no water, causes that heater damages.In the time that level switch detects water level higher than water level h, water intaking valve is closed, and washing machine stops into water; Heater can be opened, and heater is by the predetermined requirement work of washing machine.
When Temperature Detector detects water temperature lower than the default washing water temperature T of washing machine, heater is opened; In the time that Temperature Detector detects water temperature higher than the default washing water temperature T of washing machine, heater cuts out.
Be illustrated in figure 2 the basic structure of roller washing machine, hang spring 2 and outer barrel portion is filled to 3 be suspended on outer container 1, the shock absorber 4 of retractable fills 3 by base 5 with bucket portion and is connected, and cylinder is rotatably arranged on and in outer barrel, forms bucket portion and fill.
The mechanism that washing machine produces mainly contains current scour, rubs, beats etc.Roller washing machine is in the time of washing, with the rotating speed positive and negative rotation of 45 revs/min of left and right, when clothing is lifted to more than 2/3rds height of washing machine drum diameter, throw in the effect declivity of gravity on the bucket wall of cylinder opposite side, formation is beaten, reach and clean the object of clothing, we call the washing methods of existing roller washing machine to beat and wash.Because roller washing machine water is less, clothing leaves the water surface, almost few of current scour effect beating the most of the time in the process of washing.
The beating of washing methods that Figure 3 shows that existing roller washing machine washed beat schematic diagram, and in figure, transverse axis is the time, and the longitudinal axis is rotating speed.In time period t 1, be rotated counterclockwise with approximately 45 revs/min of left and right of the first rotating speed, time period t 2 stops, and time period t 3 turns clockwise with the first rotating speed, and time period t 4 stops.From t1 to t4, be called one and beat and wash beat, general time period t 1 equals time period t 3, and time period t 2 equals time period t 4, and t1 is called to turn than t4 than t2 or t3 and stops ratio, has comprised many and beat and wash beat in the whole washing process of roller washing machine.
For improving the washability of roller washing machine clothing, conventional method is to extend wash time (carrying out more beating of more piece bat washes) or/and improve washing water temperature at present, may cause like this waste of time, the energy, also likely clothing is caused to damage.
Summary of the invention
The applicant is for above-mentioned problem, be studied improvement, a kind of washing methods of roller washing machine is provided, not extending wash time, do not improve washing water temperature, do not increase the washability that improves clothing under the prerequisite of clothing damage, clean under effect equal, economize on electricity, economize on water, save washing agent, and reduce the damage of clothing.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A washing methods for roller washing machine, beats and washes beat at interval of several, 1 rotation is set and washes beat, and 1 described rotation is washed beat and comprised: cylinder accelerates to the second rotating speed by described the first rotating speed washed of beating; Test speed variable quantity under the second rotating speed; When velocity variable is less than setting value, drum rotation speed accelerates to the 3rd rotating speed; Under described the 3rd rotating speed, the clothing in cylinder be distributed in inner wall of rotary drum with cylinder synchronous rotary; After a time period of the 3rd rotating speed, be decelerated to the first rotating speed, described in getting back to, beat and wash beat.
Further:
Washing process is as follows:
First step, presses washing machine and starts key, and washing machine is started working, and starts timing;
Second step, time detector, level switch, Temperature Detector are started working simultaneously, and in whole washing process continuous firing;
Whether level switch sensed water level is lower than water level preset value h; If so, water intaking valve is opened, washing machine inflow, and heater protecting disconnects simultaneously; If not, water intaking valve is closed, and washing machine stops into water, and heater is cancelled protectiveness off-state simultaneously;
Whether Temperature Detector detected temperatures is lower than the default washing water temperature preset value T of washing machine; If so, heater is opened; If not, heater cuts out;
Whether time detector is less than wash time preset value t detection time; If so, enter third step, and from third step to the seven step cycle work; If not, enter the 8th step;
Whether third step, detect electric machine temperature rise lower than electric machine temperature rise preset value DT; If so, beat and wash beat number n and remain unchanged; If not, beat and wash beat number n and add on the original basis 1, enter the 4th step;
The 4th step, completes beating of n beat with the first rotating speed and washes, and enters the 5th step;
The 5th step, accelerates to the second rotating speed, enters the 6th step;
The 6th step, whether detection speed variable quantity is less than velocity variable preset value Δ; If so, enter the 7th step; Get back to if not third step;
The 7th step, accelerates to the 3rd rotating speed, completes rotation and washes, and gets back to third step;
The 8th step, finishes washing.
Described the second rotating speed is between 80 ~ 120 revs/min, and described the 3rd rotating speed is between 140 ~ 300 revs/min.
Described the second rotating speed is 90 revs/min, and described the 3rd rotating speed is 200 revs/min.
Described the first rotating speed accelerated to described the second rotating speed time used between 5 ~ 20 seconds.
The present invention proposes a kind of brand-new washing methods, in good time the 3rd rotating speed that drum rotation speed is brought up in washing process, clothing is taken up, rotate with cylinder, that is to say, under the 3rd rotating speed, clothing in cylinder, under the effect of centrifugal force, is distributed in inner wall of rotary drum, with cylinder with identical rotational speed, and can, in the time clothing being lifted to more than 2/3rds height of washing machine drum diameter, not throw on the inwall of cylinder opposite side in the effect declivity of gravity.As shown in Figure 4, the clothing of rotation takes up water, throws away outer barrel under the effect of centrifugal force from clothing, and the water of outer barrel flows back to again outer barrel bottom under the effect of gravity.Clothing takes up water again, and water is repeatedly taken up, throws away, falls in the clothing of rotation, and reciprocation cycle forms current scour to the clothing of rotation.For convenience of description, in description afterwards, this washing methods being called to rotation washes.In the time that drum rotation speed is brought up to the 3rd rotating speed (140 ~ 300 revs/min), clothing rotates with cylinder, and clothing distributes may be inhomogeneous, forms eccentric load.Due to the suspension design of outer barrel portion dress, the rotating speed of 200 revs/min of left and right of cylinder is not very too high, general eccentric load can not produce baleful consequences to washing machine substantially, but larger bias still can be brought adverse influence to washing machine, and such as outer barrel is clashed into casing etc.In order to eliminate this adverse effect, before washing beginning, rotation also must identify eccentric size, and in the time that bias is excessive, do not carry out this rotation and wash.
It is that the cylinder of roller washing machine rotates under band belt water condition that rotation is washed, and its rotational resistance is larger, and electric machine temperature rise is also larger, so should not carry out for a long time.In addition, rotation while washing clothing relative position constant, have unavoidably current scour less than dead angle, so rotation is washed and is beaten and washes combination according to certain rules and can learn from other's strong points to offset one's weaknesses, and brings into play best clean result.
Shown in Fig. 5, be that rotation is washed, with the time period, T1(T1 is generally 5-20 seconds, specifically determine according to test, principle is to be conducive to clothing be evenly distributed) accelerate to approximately 90 revs/min of left and right of the second rotating speed, at the second rotating speed retention time section T2, detection speed variable quantity, in the time that velocity variable is less than preset value, illustrate that eccentric load is less, accelerate to approximately 200 revs/min of left and right of the 3rd rotating speed at time period T3, time period T4 rotates with the 3rd rotating speed, and the time period, T5 stopped.From T1 to T5, be called a rotation and wash beat.
If when velocity variable is greater than preset value, illustrate that eccentric load is larger, abandon this rotation and wash.Fluctuation of speed situation (velocity variable is less) when what Fig. 6 represented is the interior small eccentricity of cylinder, what Fig. 7 represented is the fluctuation of speed situation (velocity variable is larger) when bias is larger in cylinder.
Washing process of the present invention, rotating speed--time plot, as shown in Figure 8.Beat and wash beat at interval of several, insert 1 rotation and wash beat.While washing due to rotation, washing machine drum is with clothing rotation in the situation that having water, and load is larger, and particularly, when being washed clothing when more, load is larger.Load is large, and electric machine temperature rise also can correspondingly raise.Too high for preventing electric machine temperature rise, in washing process, in the time monitoring electric machine temperature rise higher than preset value, be just increased in twice rotation and wash the quantity of washing beat of beating of inserting between beat.
The same with other roller washing machines, use the roller washing machine of washing methods of the present invention be also press start key after timer start timing, time detector, level switch, Temperature Detector are started working simultaneously.
When level switch detects water level lower than water level preset value h, water intaking valve is opened, washing machine inflow; Heater protecting disconnects, and avoids heater dry combustion method in the situation that there is no water, causes that heater damages.In the time that level switch detects water level higher than water level preset value h, water intaking valve is closed, and washing machine stops into water; Heater is allowed to open, and heater is by the predetermined requirement work of washing machine.
When Temperature Detector detects water temperature lower than washing water temperature preset value, heater is opened; In the time that Temperature Detector detects water temperature higher than washing water temperature preset value, heater cuts out.
Time detector detects that, when the time is less than wash time preset value t, washing machine continues to carry out following washing process by washing methods of the present invention:
The first step, detects electric machine temperature rise value and whether is less than electric machine temperature rise preset value DT, if electric machine temperature rise is greater than preset value DT, the back to back quantity n that washes beat that beats adds 1 on original basis; That is to say, beat before washing beginning at every turn and all can detect electric machine temperature rise, when each electric machine temperature rise value is greater than electric machine temperature rise preset value DT, washing 2 rotations the quantity n that beating of inserting between beat wash beat all can increase by 1 on the original basis; When program starts, n has an initial value, and according to clean result, test is determined.
Second step, enters to beat and washes, and carries out beating of n beat and washes.
The 3rd step, with the time period, T1(is shown in Fig. 5) accelerate to the second rotating speed, approximately 90 revs/min of left and right, detection speed variable quantity, if velocity variable is less than preset value, accelerates to the 3rd rotating speed, and approximately 200 revs/min of left and right are washed with the 3rd rotating speed rotation; Return to the first step; If velocity variable is greater than preset value, directly return to the first step.
In the time that time detector detects that the time has reached the default wash time t of washing machine, washing process finishes, and enters rinse stage.
Technique effect of the present invention is:
The washing methods of a kind of roller washing machine disclosed by the invention, beat and wash beat at interval of several, insert 1 rotation and wash beat, drum rotation speed is improved clothing is taken up, rotate with cylinder, the clothing of rotation takes up water, under the effect of centrifugal force, from clothing, throw away outer barrel, the water of outer barrel flows back to again outer barrel bottom under the effect of gravity, clothing takes up water again, (1) water is repeatedly taken up in the clothing of rotation, throw away, fall, reciprocation cycle, the clothing of rotation is formed to current scour, in this process, clothing is relatively fixing, not friction, wear and tear less, therefore, this process has formed current scour, improve the washability of clothing, but clothing is not almost damaged.(2) in the process that water is repeatedly taken up, throws away, falls in the clothing of rotation, current not only right clothing have formed current scour effect, also fully stir washing powder, washing powder can be played a role faster and betterly, can improve equally the washability of clothing.(3) under the prerequisite that realizes equal clean result, adopt washing methods of the present invention can reduce electricity consumption, water and washing powder use amount, realize energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is the common washing process flow chart of roller washing machine.
Fig. 2 is roller washing machine structural representation.
Fig. 3 washes beat schematic diagram for beating.
Fig. 4 is rotation wash water flow diagram (in figure, arrow is water (flow) direction).
Fig. 5 washes beat schematic diagram for rotating.
Fig. 6 is velocity variable schematic diagram (velocity variable is less).
Fig. 7 is velocity variable schematic diagram (velocity variable is larger).
Fig. 8 is washing process rotating speed of the present invention--time plot.
Fig. 9 is the control flow chart of a specific embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Below in conjunction with a specific embodiment of the present invention, by Fig. 9, the course of work of the present invention is described.Start describe before, first the preset values more used of the present embodiment in Fig. 9 and parameter are made an explanation.
T-wash time preset value, represents total time of whole washing process, specifically determines according to clean result.
H-water level preset value, represents the water level height in washing process, and water loss when directly impact is washed, specifically determines according to water loss requirement and clean result.
T-washing water temperature preset value, represents the water temperature height in washing process, while specifically determining, will take into account clean result and power consumption.
DT-electric machine temperature rise preset value, for protection electric machine temperature rise arranges, should be less than motor and allow temperature rise and leave abundant surplus, and the present embodiment is 60 degrees Celsius.
Δ-velocity variable preset value, can be because bias is excessive under the 3rd rotating speed for protection, produces outer barrel and clash into casing and arrange, and the present embodiment is 2.5 revs/min.
N-beat and wash beat number, representative is washed beating between beat two rotations and is washed beat quantity.Beat to wash while beginning at every turn and all can detect electric machine temperature rise, when electric machine temperature rise is during higher than electric machine temperature rise preset value, n adds 1 on the original basis.When program starts, n has an initial value, and the present embodiment is 2.
The first rotating speed-beat the drum rotation speed of washing, the present embodiment is 45 revs/min.
The second rotating speed-velocity variable detects rotating speed, and the present embodiment is 90 revs/min.
The drum rotation speed that the 3rd rotating speed-rotation is washed, determines according to test, can between 140 revs/min to 300 revs/min, select, and in the time of 140 revs/min of drum rotation speeds, drum rotating resistance is less, and electric machine temperature rise is less; When 300 revs/min of drum rotation speeds, drum rotating resistance is larger, and electric machine temperature rise is larger.The present embodiment is 200 revs/min.
By Fig. 9, this example is illustrated below.
First step A1, presses washing machine and starts key, and washing machine is started working, and starts timing, enters second step A2.
Second step A2, time detector, level switch, Temperature Detector are started working simultaneously, and in whole washing process continuous firing.
Whether level switch sensed water level is lower than water level preset value h; If so, water intaking valve is opened, washing machine inflow, and heater protecting disconnects simultaneously; If not, water intaking valve is closed, and washing machine stops into water, and heater is cancelled protectiveness off-state simultaneously.
Whether Temperature Detector detected temperatures is lower than the default washing water temperature preset value T of washing machine; If so, heater is opened; If not, heater cuts out.
Whether time detector is less than wash time preset value t detection time; If so, enter third step A3, and from third step A3 to the seven steps A 7 periodic duties; If not, enter the 8th steps A 8.
Whether third step A3, detect electric machine temperature rise lower than electric machine temperature rise preset value DT; If so, beat and wash beat number n and remain unchanged; If not, beat and wash beat number n and add on the original basis 1, enter the 4th steps A 4.
The 4th steps A 4, completes beating of n beat with the first rotating speed and washes, and enters the 5th steps A 5.
The 5th steps A 5, accelerates to the second rotating speed, enters the 6th steps A 6.
The 6th steps A 6, whether detection speed variable quantity is less than velocity variable preset value Δ; If so, enter the 7th steps A 7; If not, get back to third step A3.
The 7th steps A 7, accelerates to the 3rd rotating speed, completes rotation and washes, and gets back to third step A3.
The 8th steps A 8, finishes washing, enters rinsing.

Claims (5)

1. a washing methods for roller washing machine, is characterized in that: beat and wash beat at interval of several, 1 rotation is set and washes beat, 1 described rotation is washed beat and comprised: cylinder accelerates to the second rotating speed by described the first rotating speed washed of beating; Test speed variable quantity under the second rotating speed; When velocity variable is less than setting value, drum rotation speed accelerates to the 3rd rotating speed; Under described the 3rd rotating speed, the clothing in cylinder be distributed in inner wall of rotary drum with cylinder synchronous rotary; After a time period of the 3rd rotating speed, be decelerated to the first rotating speed, described in getting back to, beat and wash beat.
2. according to the washing methods of roller washing machine claimed in claim 1, it is characterized in that:
Washing process is as follows:
First step, presses washing machine and starts key, and washing machine is started working, and starts timing;
Second step, time detector, level switch, Temperature Detector are started working simultaneously, and in whole washing process continuous firing;
Whether level switch sensed water level is lower than water level preset value h; If so, water intaking valve is opened, washing machine inflow, and heater protecting disconnects simultaneously; If not, water intaking valve is closed, and washing machine stops into water, and heater is cancelled protectiveness off-state simultaneously;
Whether Temperature Detector detected temperatures is lower than the default washing water temperature preset value T of washing machine; If so, heater is opened; If not, heater cuts out;
Whether time detector is less than wash time preset value t detection time; If so, enter third step, and from third step to the seven step cycle work; If not, enter the 8th step;
Whether third step, detect electric machine temperature rise lower than electric machine temperature rise preset value DT; If so, beat and wash beat number n and remain unchanged; If not, beat and wash beat number n and add on the original basis 1, enter the 4th step;
The 4th step, completes beating of n beat with the first rotating speed and washes, and enters the 5th step;
The 5th step, accelerates to the second rotating speed, enters the 6th step;
The 6th step, whether detection speed variable quantity is less than velocity variable preset value Δ; If so, enter the 7th step; Get back to if not third step;
The 7th step, accelerates to the 3rd rotating speed, completes rotation and washes, and gets back to third step;
The 8th step, finishes washing.
3. according to the washing methods of the roller washing machine described in claim 1 or 2, it is characterized in that: described the second rotating speed is between 80 ~ 120 revs/min, and described the 3rd rotating speed is between 140 ~ 300 revs/min.
4. according to the washing methods of roller washing machine claimed in claim 3, it is characterized in that: described the second rotating speed is 90 revs/min, described the 3rd rotating speed is 200 revs/min.
5. according to the washing methods of the roller washing machine described in claim 1 or 2, it is characterized in that: described the first rotating speed accelerated to described the second rotating speed time used between 5 ~ 20 seconds.
CN201410390927.0A 2014-08-11 2014-08-11 The washing methods of roller washing machine Active CN104195788B (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107177957A (en) * 2017-05-17 2017-09-19 无锡飞翎电子有限公司 The control method of washing and device of washing machine, washing machine
CN109518412A (en) * 2017-09-19 2019-03-26 青岛海尔滚筒洗衣机有限公司 A kind of motor temperature detection method for washing machine
CN111485365A (en) * 2019-01-28 2020-08-04 无锡飞翎电子有限公司 Washing machine and control method and device of clothes treatment device
CN112127096A (en) * 2020-09-17 2020-12-25 长虹美菱股份有限公司 Method for improving energy efficiency washing performance of drum washing machine
CN109518412B (en) * 2017-09-19 2022-06-14 青岛海尔洗涤电器有限公司 Motor temperature detection method for washing machine

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CN1572960A (en) * 2003-06-18 2005-02-02 三洋电机株式会社 Drum type washing machine
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CN102191654A (en) * 2010-03-15 2011-09-21 株式会社东芝 Washing machine
CN103088601A (en) * 2013-01-24 2013-05-08 无锡小天鹅股份有限公司 Roller washing machine and control method thereof

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Publication number Priority date Publication date Assignee Title
EP0742307A1 (en) * 1995-05-12 1996-11-13 Kabushiki Kaisha Toshiba Drum type washing machine and washing method thereof
CN1572960A (en) * 2003-06-18 2005-02-02 三洋电机株式会社 Drum type washing machine
CN101586301A (en) * 2008-05-23 2009-11-25 Lg电子株式会社 The method of washing machine and control washing machine
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107177957A (en) * 2017-05-17 2017-09-19 无锡飞翎电子有限公司 The control method of washing and device of washing machine, washing machine
CN109518412A (en) * 2017-09-19 2019-03-26 青岛海尔滚筒洗衣机有限公司 A kind of motor temperature detection method for washing machine
CN109518412B (en) * 2017-09-19 2022-06-14 青岛海尔洗涤电器有限公司 Motor temperature detection method for washing machine
CN111485365A (en) * 2019-01-28 2020-08-04 无锡飞翎电子有限公司 Washing machine and control method and device of clothes treatment device
CN112127096A (en) * 2020-09-17 2020-12-25 长虹美菱股份有限公司 Method for improving energy efficiency washing performance of drum washing machine

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Address after: 214028 No.6, plot 5, no.j3, export processing zone, Wuxi New District, Jiangsu Province

Patentee after: Wuxi Little Swan Network Technology Co.,Ltd.

Address before: 214028 No.6, plot 5, no.j3, export processing zone, Wuxi New District, Jiangsu Province

Patentee before: WUXI LITTLE SWAN GENERAL APPLIANCE Co.,Ltd.

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Effective date of registration: 20220117

Address after: No.18, Changjiang South Road, national high tech Development Zone, Wuxi City, Jiangsu Province

Patentee after: Wuxi Little Swan Electric Co.,Ltd.

Address before: 214028 No.6, plot 5, no.j3, export processing zone, Wuxi New District, Jiangsu Province

Patentee before: Wuxi Little Swan Network Technology Co.,Ltd.