KR20000014202A - Inner washing tub control method for automatic washing machine - Google Patents
Inner washing tub control method for automatic washing machine Download PDFInfo
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- KR20000014202A KR20000014202A KR1019980033485A KR19980033485A KR20000014202A KR 20000014202 A KR20000014202 A KR 20000014202A KR 1019980033485 A KR1019980033485 A KR 1019980033485A KR 19980033485 A KR19980033485 A KR 19980033485A KR 20000014202 A KR20000014202 A KR 20000014202A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/087—Water level measuring or regulating devices
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/40—Driving arrangements for driving the receptacle and an agitator or impeller, e.g. alternatively
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
본발명은 전자동세탁기에 관한 것으로 특히, 세탁외조와 세탁내조 사이의 상측부로 펌핑되어 세탁내조로 공급되는 세탁수의 공급량을 에어챔버와 연결된 수위감지센서에 의해 감지하여 에어챔버내의 변화되는 압력변화에 따라 모우터의 회전수를 증,감시킴으로서 최적의 상태로 회전되는 세탁내조에 의해 세탁성능과 헹굼 성능 등을 향상시킬 수 있도록 된 전자동세탁기의 세탁내조 제어방법에 관한 것이다.The present invention relates to a fully automatic washing machine. In particular, the pumping pump is pumped to the upper part between the washing tank and the washing tank to detect the amount of washing water supplied to the washing tank by the water level sensor connected to the air chamber to change the pressure change in the air chamber. Accordingly, the present invention relates to a washing machine control method of a fully automatic washing machine, which is capable of improving washing performance and rinsing performance by increasing and monitoring the number of revolutions of a motor.
종래 펄세이터에 의한 교반세탁을 하는 세탁기의 구조는 도1 에 나타내었다.The structure of a washing machine for agitated washing by a conventional pulsator is shown in FIG.
상기 세탁기(1)는 세탁수를 저장할 수 있는 세탁외조(2)와,The washing machine 1 and the laundry outer tank (2) that can store the wash water,
상기 세탁외조(2)내부의 설치되어 세탁물을 세탁하기 위한 세탁내조(3)와,A washing tub (3) installed inside the washing tub (2) for washing laundry;
상기 세탁내조(3)의 내부 바닥면에 설치되어 정,역회전을 하면서 세탁물에 기계적 회전력을 부여하여 세탁물을 교반 세탁하는 펄세이터(4)와,A pulsator (4) installed on the inner bottom surface of the washing tub (3) to impart mechanical rotational force to the laundry while performing forward and reverse rotation, and stir washing the laundry;
상기 펄세이터(4)를 정,역회전시키기 위해 펄세이터(4)에 결합되는 세탁축(6)과,A washing shaft 6 coupled to the pulsator 4 to rotate the pulsator 4 forward and reverse,
상기 세탁내조(3)를 일방향으로 회전시키기 위해 세탁내조(3)에 결합되는 탈수축(6-1)과,A dewatering shaft 6-1 coupled to the washing tub 3 to rotate the washing tub 3 in one direction;
상기 세탁축(6)과 탈수축(6-1)을 결합 혹은 분리시키는 클러치(7)와,A clutch 7 for coupling or separating the washing shaft 6 and the dehydrating shaft 6-1;
상기 클러치(7)를 구동시키기 위하여 클러치(7)와 풀리 및 밸트로 연결되어 회전력을 전달하는 모우터(8)와,A motor 8 connected to the clutch 7 and a pulley and a belt to transfer the rotational force to drive the clutch 7,
상기 세탁외조(2)의 세탁수를 외부로 배출시키기 위하여 세탁외조(2)에 결합되는 배수밸브(9)를 구비한 구성으로 되어 있다.In order to discharge the washing water of the washing tub 2 to the outside, it is configured to have a drain valve 9 coupled to the washing tub 2.
상기와 같은 종래 세탁기의 작용을 설명하면 다음과 같다.Referring to the operation of the conventional washing machine as described above are as follows.
세탁내조(3)의 내부에 세탁물을 넣고 시작보턴을 누르면 급수가 되어진다.Put the laundry inside the washing tank (3) and press the start button, the water is supplied.
상기 세탁내조(3)로 급수되는 세탁수는 세탁내조(3)와 세탁외조(2)를 채우게 되는 동시에 일정수위가 되면 센서에 의해 급수가 중단되어진다.The wash water supplied to the washing tub 3 is filled with the washing tub 3 and the washing tub 2, and the water supply is stopped by the sensor when the predetermined level is reached.
상기의 급수가 중단됨과 동시에 모우터(8)가 정,역 회전하면서 세탁축(6)을 정,역회전 시키게 된다.At the same time as the water supply is stopped, the motor 8 rotates forward and backward while rotating the washing shaft 6 forward and reverse.
따라서,상기의 세탁축(6)에 연결된 펄세이터(4)가 정,역회전을 하면서 세탁물을 세탁하게 된다.Accordingly, the pulsator 4 connected to the laundry shaft 6 washes the laundry while the forward and reverse rotations are performed.
또한, 상기의 세탁이 완료되면 배수공정으로 이어지면서 배수밸브(9)가 개방되고 상기 배수밸브(9)의 개방에 의해 세탁외조(2)의 세탁수가 외부로 배수되어진다.In addition, when the washing is completed, the drainage valve 9 is opened while the drainage process is opened, and the washing water of the washing outer tub 2 is drained to the outside by opening the drainage valve 9.
또한, 상기의 배수공정이 완료되면 세탁내조(3)에 세탁물과 함께 머물고 있는 세탁수를 배수시키기 위한 탈수공정이 이어진다.In addition, when the drainage process is completed, a dehydration process for draining the wash water staying with the laundry in the washing tub 3 is followed.
상기의 탈수공정은 세탁축(6)과 탈수축(6-1)이 결합된 상태에서 세탁내조(3)와 펄세이터(4)가 일체로 일방향 고속회전되면서 내부의 세탁수를 다수개의 세탁공(5)을 통해 세탁외조(2)로 탈수 시키게 되고 아울러 세탁외조(2)로 탈수된 세탁수는 배수밸브(10)를 통해 외부로 배수되어진다.In the dehydration process, the washing tub 6 and the pulsator 4 are integrally rotated in one direction at a high speed in a state in which the washing shaft 6 and the dehydration shaft 6-1 are coupled to the plurality of washing holes. Dehydration to the laundry outer tank (2) through (5) and the wash water dewatered to the washing outer tank (2) is drained to the outside through the drain valve (10).
그리고, 상기 세탁내,외조(3)(2)로 급수되는 세탁수의 량(수위)을 감지하기 위해서는 세탁외조(2)에 급수된 세탁수가 에어챔버(10)내부로 공급되면서 내부의 공기를 압축하게 된다.And, in order to detect the amount (water level) of the wash water supplied to the inside and outside of the washing tub 3, the washing water supplied to the washing tub 2 is supplied to the inside of the air chamber 10 to supply air therein. Will be compressed.
따라서, 상기 세탁수가 에어챔버(10)내부에서 공기를 압축하는 정도를 수위감지 센서(11)가 감지함으로서 설정된 수위로 급수가 가능하게 된다.Therefore, the water level sensor 11 detects the degree to which the washing water compresses the air in the air chamber 10, and thus the water supply is possible at the set water level.
그러나, 상기 에어챔버(10)와 수위감지센서(11)는 세탁공정과 헹굼공정시에 급,배수되는 세탁수의 량만을 감지하여 정확한 수위로 세탁수를 채우는 역할만을 수행하기 때문에 세탁내조(3)의 회전속도와는 아무런 관계가 없게 된다.However, the air chamber 10 and the water level sensor 11 detects only the amount of wash water that is supplied and drained during the washing process and the rinsing process, and performs only a role of filling the washing water at the correct level. ) Has no relationship with the rotational speed.
이러한 종래의 문제점 등을 해결 보완하기 위한 본발명의 목적은,The purpose of the present invention for solving and complementing such a conventional problem,
원심투과세탁기의 세탁내조와 세탁외조사이로 퍼올려져 세탁내조로 공급되는 세탁수가 설정된 량만큼 정확하게 펌핑되도록 하여 세탁성능 및 헴굼성능을 향상시킬수 있도록 하는 목적을 제공한다.The washing tank and centrifugal washing tank of the centrifugal washing machine are pumped up to ensure that the washing water supplied to the washing tank is pumped precisely by the set amount, thereby improving the washing performance and the heme performance.
상기의 목적을 달성하기 위하여 본발명은,In order to achieve the above object, the present invention,
세탁외조와 세탁내조사이를 통해 상측부로 퍼올려져 세탁내조로 공급되는 세탁수의 량이 적을 경우에는 수위감지센서가 에어챔버의 압력을 감지하여 모우터의 회전수를 증가시키고 상기 세탁내조로 공급되는 세탁수의 량이 많을 경우에는 수위감지 센서가 에어챔버의 압력을 감지하여 모우터의 회전수를 감소시킴으로서 본발명의 목적을 달성할 수 있게된다.When the amount of washing water supplied to the washing tank is small, the water level sensor detects the pressure of the air chamber to increase the rotational speed of the motor and is supplied to the washing tank. When the amount of wash water is large, the water level sensor can detect the pressure of the air chamber to reduce the number of revolutions of the motor to achieve the object of the present invention.
도1은 종래 클러치식 세탁기를 나타낸 단면도1 is a cross-sectional view showing a conventional clutch type washing machine
도2는 본발명 원심투과세탁기를 나타낸 단면도Figure 2 is a cross-sectional view showing the present invention centrifugal washing machine
도3은 본발명 원심투과세탁기의 세탁내조 회전제어과정을 나타낸 플루우 챠트Figure 3 is a flow chart showing a washing tank rotation control process of the present invention centrifugal washing machine
<도면중 주요 부분에 대한 부호설명><Code Description of Main Parts of Drawing>
101-원심투과세탁기 102-세탁내조101-Centrifugal Washing Machine 102-Laundry
103-세탁외조 104-에어챔버103-Laundry 104-Air Chamber
105-수위감지센서 106-구동축105-level sensor 106-drive shaft
107-모우터107-motor
본발명의 세탁내조 회전제어방법을 도2와 도3에 의해 상세히 설명하기로 한다.Laundry internal rotation control method of the present invention will be described in detail with reference to Figs.
원심투과세탁기(101)의 세탁외조(103)와 세탁내조(102) 사이의 상측으로 원심력에 의해 상승하여 세탁내조(102)로 공급되는 세탁수의 압력을 세탁외조(103)의 에어챔버(104)에 연결된 수위감지센서(105)가 감지하여 설정압력 이하가 되면 모우터(107)의 회전수를 증가시켜 세탁수를 펌핑할 수 있도록 하고,The air chamber 104 of the washing tub 103 receives the pressure of the wash water supplied to the washing tub 102 by a centrifugal force upward between the washing tub 103 and the washing tub 102 of the centrifugal washing machine 101. When the water level detection sensor 105 connected to the lower than the set pressure is detected to increase the number of revolutions of the motor 107 to pump the wash water,
상기 수위감지센서(105)의 감지압력이 설정압력 이상이 되면 모우터(107)의 회전수를 감소시켜 세탁수를 펌핑할 수 있도록 이루어진 것이다.When the detection pressure of the water level sensor 105 is more than the set pressure is made to reduce the number of revolutions of the motor 107 to pump the wash water.
이와같이된 본발명의 작용을 설명하면 다음과 같다.Referring to the operation of the present invention as described above is as follows.
먼저, 도2는 본발명 원심투과 세탁기를 나타낸 단면도로서, 세탁기(101)의 세탁 내조(102)에 세탁물을 투입하면 포량감지가 이루어지는 동시에 세탁수 공급량이 결정되어진다,First, Figure 2 is a cross-sectional view showing a centrifugal washing machine of the present invention, when the laundry is put into the washing tank 102 of the washing machine 101, the amount of washing is detected and the amount of washing water is determined.
그리고, 상기 세탁수 공급량이 정해지면 급수가 이루어지면서 세탁내조(102)의 정,역회전에 의해 세탁을 수행하게 된다.Then, when the washing water supply amount is determined, washing is performed by forward and reverse rotation of the washing tub 102 while supplying water.
이때, 상기 세탁내조(102)로 급수되는 세탁수의 양은 세탁물의 포량에 의해 다르게된다.At this time, the amount of wash water supplied to the washing tub 102 is different depending on the amount of laundry.
즉, 상기 세탁내조(102)의 세탁물 양이 많게 되면 세탁수는 고수위로 급수되고 세탁물 양이 중간정도이면 세탁수는 중수위로 급수되며 세탁물 양이 적게되면 세탁수의 양은 저수위로 급수된다.That is, when the amount of laundry in the washing tub 102 becomes large, the wash water is supplied at a high level, and when the amount of the laundry is medium, the wash water is supplied to the medium level, and when the amount of the laundry is low, the amount of the wash water is supplied to the low level.
또한, 상기와 같이 급수가 완료되면 모우터(107)의 정,역회전을 구동축(106)으로 전달받은 세탁내조(102)의 정,역회전에 의해 세탁을 수행하게 된다.In addition, when the water supply is completed as described above, the washing by performing the forward and reverse rotation of the washing tub 102 received the forward and reverse rotation of the motor 107 to the drive shaft 106.
한편, 상기와 같이 세탁내조(102)의 정,역회전에 의해 세탁내조(102)와 세탁외조(103)의 세탁수는 세탁내조(102)와 세탁외조(103)사이로 펌핑되어 세탁내조(103)로 재급수되면서 원심투과세탁을 하게 된다.On the other hand, the washing water of the washing tank 102 and the washing outer tank 103 is pumped between the washing inner tank 102 and the washing outer tank 103 by the forward and reverse rotation of the washing inner tank 102, the washing inner tank 103 Resuspended by) to centrifugal washing.
이때, 상기 세탁내조(102)와 세탁외조(103)사이로 펌핑되는 세탁수는 세탁내조(102)의 회전수 증,감에 따라 원심력에 차이가 발생하게되고 상기 원심력의 차이에 의해 펌핑되는 세탁수의 량도 변하게 된다.At this time, the washing water pumped between the washing tub 102 and the washing tub 103 is a difference in the centrifugal force occurs according to the increase and decrease in the number of revolutions of the washing tub 102, the washing water pumped by the difference in the centrifugal force The amount will also change.
즉, 상기 세탁내조(102)가 적은 회전수로 회전하면 펌핑되는 세탁수에 원심력이 적게 작용되기 때문에 적은량의 세탁수를 펌핑하게 된다.That is, when the washing inner tub 102 rotates at a low rotation speed, the centrifugal force is applied to the washing water to be pumped, thereby pumping a small amount of the washing water.
또한, 상기 세탁내조(102)가 많은 회전수로 회전하면 펌핑되는 세탁수에 원심력이 많이 작용되기 때문에 많은량의 세탁수를 펌핑할수 있게 된다.In addition, when the washing tub 102 rotates at a large number of rotations, a large amount of centrifugal force is applied to the washing water to be pumped.
따라서, 본발명에서는 상기 세탁내조(102)와 세탁외조(103)사이로 펌핑되는 세탁수의 량을 세탁물과 세탁수의 량에 맞추어 최적의 상태로 공급할수 있게 된다.Therefore, in the present invention, the amount of washing water pumped between the washing inner tub 102 and the washing outer tub 103 can be optimally supplied in accordance with the amount of laundry and washing water.
먼저, 본발명 원심투과세탁기(101)의 세탁외조(103)에 형성된 에어챔버(104)에는 세탁내조(102)와 세탁외조(103)에 급수된 세탁수의 압력을 수위감지센서(105)에 의해 감지하게 된다.First, the air chamber 104 formed in the washing outer tub 103 of the centrifugal washing machine 101 of the present invention receives the pressure of the washing water supplied to the washing inner tub 102 and the washing outer tub 103 to the water level sensor 105. Will be detected.
그리고, 상기 에어챔버(104)의 내부압력은 세탁내조(102)의 회전속도 변화에 대해 민감하게 반응을 하면서 감지를 하게 된다.In addition, the internal pressure of the air chamber 104 is sensitive to the change in the rotational speed of the washing tub 102 while sensing.
즉, 상기 세탁내조(102)가 적은 회전수로 회전할 경우에는 세탁수에 미치는 원심력이 적기 때문에 펌핑되는 세탁수의 량이 적어지는 동시에 세탁외조(103)에 잔존하는 세탁수는 많아지게 되므로 에어챔버(104)내의 수위는 높아지게 되고 아울러 에어챔버(104)내의 압력이 높아지는 상태가 된다.That is, when the washing inner tub 102 rotates with a small number of revolutions, since the centrifugal force on the washing water is small, the amount of washing water being pumped decreases and the washing water remaining in the washing outer tub 103 increases. The water level in the 104 becomes high, and the pressure in the air chamber 104 becomes high.
또한, 상기 세탁내조(102)가 많은 회전수로 회전할 경우에는 세탁수에 미치는 원심력이 크기 때문에 펌핑되는 세탁수의 량이 많아지는 동시에 세탁외조(103)에 잔존하는 세탁수는 적어지게 되므로 에어챔버(104)내의 수위는 낮아지게 되고 아울러 에어챔버(104)내의 압력이 낮아지는 상태가 된다.In addition, when the washing tub 102 rotates at a large number of revolutions, the centrifugal force applied to the washing tub is large, and thus the amount of washing pump pumped increases, and at the same time, the washing water remaining in the tub is reduced. The water level in the 104 is lowered and the pressure in the air chamber 104 is lowered.
즉, 상기 에어챔버(104)의 압력이 설정압력보다 낮을 경우에는 모우터(107)의 회전수를 감소시키게 된다.That is, when the pressure of the air chamber 104 is lower than the set pressure, the rotation speed of the motor 107 is reduced.
상기와 같이 모우터(107)의 회전수가 감소되면 원심력의 저하에 의해 펌핑되는 세탁수의 량이 적어지게 되므로 에어챔버(104)내의 수위가 올라가면서 설정된 압력을 유지하게 된다.When the rotation speed of the motor 107 is reduced as described above, the amount of wash water pumped by the lowering of the centrifugal force decreases, so that the set pressure is maintained while the water level in the air chamber 104 increases.
또한, 상기 에어챔버(104)의 압력이 설정압력보다 높을 경우에는 모우터(107)의 회전수를 증가시키게 된다.In addition, when the pressure of the air chamber 104 is higher than the set pressure, the rotation speed of the motor 107 is increased.
상기와 같이 모우터(107)의 회전수가 증가되면 원심력의 상승에 의해 펌핑되는 세탁수의 량이 많지게 되므로 에어챔버(104)내의 수위가 내려가면서 설정된 압력을 유지하게 된다.As described above, when the rotation speed of the motor 107 is increased, the amount of washing water pumped by the increase of the centrifugal force increases, thereby maintaining the set pressure while the water level in the air chamber 104 decreases.
따라서, 상기 에어챔버(104) 내의 압력변화를 수위감지센서(105)로 감지하여 세탁내조(102)가 항상 최적의 회전수로 회전하도록 제어함으로서 균일한 세탁 및 헹굼을 할수 있고 아울러 세탁성능과 헹굼성능을 향상시킬수 있게된다.Accordingly, by detecting the pressure change in the air chamber 104 by the water level sensor 105 to control the washing tub 102 to rotate at the optimum rotation speed at all times, it is possible to perform uniform washing and rinsing, and also to wash performance and rinsing. It can improve performance.
상기와 같은 일련의 세탁과정을 도6의 플루우챠트에 나타내었다.Such a series of washing procedures are shown in the flute chart of FIG.
즉, 세탁기(101)의 세탁내조(102)로 투입된 세탁물의 포량감지(S1)가 이루어지면 세탁수량이 결정(S2)되어 급수(S3)를 시작하게 된다.That is, when the quantity detection (S1) of the laundry introduced into the washing tank 102 of the washing machine 101 is made, the amount of washing water is determined (S2) to start the water supply (S3).
그리고, 상기 급수(S3)가 완료되면 모우터의 정,역회전(S4)이 이루어지면서 수위 감지센서(105)가 에어챔버(104)내의 압력이 설정된 압력(S6)인가를 감지하게 된다.Then, when the water supply (S3) is completed, the forward and reverse rotation (S4) of the motor is made and the water level sensor 105 detects whether the pressure in the air chamber 104 is the set pressure (S6).
이때, 상기 에어챔버(104)내의 압력이 설정압력이하(S7)일경우에는 모우터의 회전수를 감소(S8)시켜 설정된 압력으로 복귀시킨후 세탁(S11)을 수행하게 된다.At this time, when the pressure in the air chamber 104 is less than the set pressure (S7) to reduce the number of revolutions of the motor (S8) to return to the set pressure to perform the washing (S11).
또한, 상기 에어챔버(104)내의 압력이 설정압력이상(S9)일경우에는 모우터의 회전수를 증가(S10)시켜 설정된 압력으로 다운 시킨후 세탁(S11)을 수행하게 된다.In addition, when the pressure in the air chamber 104 is greater than the set pressure (S9) to increase the number of revolutions of the motor (S10) and down to the set pressure to perform the washing (S11).
이와같이된 본발명은, 세탁외조와 세탁내조사이를 통해 상측부로 퍼올려져 세탁내조로 공급되는 세탁수의 량이 적을 경우에는 수위감지센서가 에어챔버의 압력을 감지하여 모우터의 회전수를 증가시키고 상기 세탁내조로 공급되는 세탁수의 량이 많을 경우에는 수위감지 센서가 에어챔버의 압력을 감지하여 모우터의 회전수를 감소시킴으로서 원심투과세탁기의 세탁내조와 세탁외조사이로 퍼올려져 세탁내조로 공급되는 세탁수가 설정된 량만큼 정확하게 펌핑되도록 하여 세탁성능 및 헴굼성능을 향상시킬수 있는 유용한 효과를 갖는다.In this invention, when the amount of washing water supplied to the washing tank is lowered through the washing tank and inner laundry tank, the level sensor detects the pressure of the air chamber and increases the number of rotations of the motor. When the amount of wash water supplied to the washing tank is large, the water level sensor detects the pressure of the air chamber and reduces the number of revolutions of the motor, so that the washing tank of the centrifugal washing machine and the external washing of the centrifugal washing machine are spun up to be supplied to the washing tank. The washing water is pumped precisely by the set amount, which has a useful effect of improving the washing performance and the heme performance.
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KR1019980033485A KR20000014202A (en) | 1998-08-18 | 1998-08-18 | Inner washing tub control method for automatic washing machine |
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KR1019980033485A KR20000014202A (en) | 1998-08-18 | 1998-08-18 | Inner washing tub control method for automatic washing machine |
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CN113756057A (en) * | 2020-06-03 | 2021-12-07 | 青岛海尔洗衣机有限公司 | Speed reduction clutch device of washing machine, washing machine and control method |
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CN113756057A (en) * | 2020-06-03 | 2021-12-07 | 青岛海尔洗衣机有限公司 | Speed reduction clutch device of washing machine, washing machine and control method |
CN113756057B (en) * | 2020-06-03 | 2024-03-22 | 青岛海尔洗衣机有限公司 | Deceleration clutch device of washing machine, washing machine and control method |
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