KR101165009B1 - Method for controlling dehydration in drum washing machine - Google Patents

Method for controlling dehydration in drum washing machine Download PDF

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Publication number
KR101165009B1
KR101165009B1 KR1020060038387A KR20060038387A KR101165009B1 KR 101165009 B1 KR101165009 B1 KR 101165009B1 KR 1020060038387 A KR1020060038387 A KR 1020060038387A KR 20060038387 A KR20060038387 A KR 20060038387A KR 101165009 B1 KR101165009 B1 KR 101165009B1
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South Korea
Prior art keywords
drum
dehydration
washing machine
water
overloaded
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KR1020060038387A
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Korean (ko)
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KR20070105789A (en
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김창후
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주식회사 대우일렉트로닉스
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Priority to KR1020060038387A priority Critical patent/KR101165009B1/en
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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
    • D06F39/081—Safety arrangements for preventing water damage
    • D06F39/082—Safety arrangements for preventing water damage detecting faulty draining operations, e.g. filter blockage, faulty pump
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
    • 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
    • D06F34/20—Parameters relating to constructional components, e.g. door sensors
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/007—Methods for washing, rinsing or spin-drying for spin-drying only
    • 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 
    • D06F37/304—Arrangements or adaptations of electric motors
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

본 발명은 드럼세탁기의 탈수 제어 방법에 관한 것으로, 드럼세탁기의 탈수 제어 방법에 있어서, 드럼에 과부하가 발생했는지 여부를 판단하는 단계와, 드럼에 과부하가 발생한 경우 드럼의 회전속도를 일정값 낮추는 단계와, 일정값 낮춰진 회전속도로 드럼을 일정시간 동작시킨 후 드럼의 회전속도를 원래 상태로 복귀시키는 단계를 포함하여 이루어지는 것을 특징으로 한다. 이와 같은 본 발명은 탈수 진행 중 드럼의 RPM 상승 단계에서 드럼과 터브 사이에 물이 차서 드럼에 과부하가 걸리는 경우 드럼의 RPM을 낮추어 일정시간 동작시킨 후 드럼의 RPM을 원래의 상태로 복귀시킴으로써 탈수 시 드럼에 과부하가 걸리는 것을 방지하고 물을 배수펌프 쪽으로 원활하게 배수시킴으로써 탈수 효율을 향상시킬 수 있다.The present invention relates to a method for controlling dehydration of a drum washing machine, the method for controlling dehydration of a drum washing machine, the method comprising: determining whether an overload occurs in a drum and lowering a drum rotation speed by a predetermined value when the drum is overloaded. And operating the drum at a constant speed lowered for a predetermined time, and then returning the drum to its original state. In the present invention as described above, when dehydration is in progress during the dehydration process, if the drum is overloaded with water due to the water filling between the drum and the tub, the drum is lowered by operating the RPM for a certain time and then dehydrating the drum by returning to its original state. The dewatering efficiency can be improved by preventing the drum from being overloaded and by smoothly draining the water to the drain pump.

드럼세탁기, 탈수 제어, 과부하, RPM Drum Washer, Dewatering Control, Overload, RPM

Description

드럼세탁기의 탈수 제어 방법{Method for controlling dehydration in drum washing machine}Method for controlling dehydration in drum washing machine

도 1은 일반적인 드럼세탁기를 개략적으로 나타낸 단면도.1 is a cross-sectional view schematically showing a general drum washing machine.

도 2는 일반적인 드럼세탁기의 제어회로를 나타낸 블록구성도.Figure 2 is a block diagram showing a control circuit of a general drum washing machine.

도 3은 본 발명의 실시예에 따른 드럼세탁기의 탈수 제어 방법을 설명하기 위한 흐름도.3 is a flowchart illustrating a dehydration control method of a drum washing machine according to an embodiment of the present invention.

도 4는 탈수 행정 시 드럼의 회전속도의 변화를 나타낸 도면.4 is a view showing a change in the rotational speed of the drum during the dehydration stroke.

*도면의 주요 부분에 대한 부호의 설명*Description of the Related Art [0002]

10: 저수조 11: 드럼10: reservoir 11: drum

12: 리프터 13: 히터12: lifter 13: heater

14: 세탁물 15: 수위14: laundry 15: water level

20: 마이컴 21: 로드셀센서20: microcomputer 21: load cell sensor

22: 급수제어부 23: 급수밸브22: water supply control unit 23: water supply valve

24: 배수제어부 25: 배수밸브24: drain control unit 25: drain valve

26: 배수모터 27: 모터구동제어부26: drainage motor 27: motor drive control unit

28: 모터 29: 수위센서28: motor 29: water level sensor

본 발명은 드럼세탁기의 탈수 제어 방법에 관한 것으로, 더욱 상세하게는 탈수 행정 진행 시 세탁조 내의 물이 배수펌프 쪽으로 배수되지 않고 터브와 드럼 사이에 찬 상태에서 드럼이 동작함으로써 발생하는 과부하를 방지하여 탈수 효율을 향상시킬 수 있도록 한 드럼세탁기의 탈수 제어 방법에 관한 것이다.The present invention relates to a method for controlling dehydration of a drum washing machine, and more particularly, to prevent dehydration by preventing an overload caused by the operation of a drum in a cold state between a tub and a drum without the water in the washing tank being drained toward the drain pump during the dehydration stroke. It relates to a dehydration control method of a drum washing machine to improve the efficiency.

일반적으로, 수직축 상에서 세탁조를 회전시키는 저수조형 세탁기가 펄세이터의 회전구동을 통하여 저수조 내의 세탁수에 잠겨진 세탁물을 교반 세탁하는 것과는 달리, 드럼형 세탁기는 세탁물이 투입된 드럼을 수평회전시키는 동작으로 세탁물을 이동시킨 후 떨어지는 낙차력과 회전하는 드럼과 세탁물간의 마찰을 이용하여 세탁하는 것으로 세탁물의 손상이 거의 없고 세탁물이 서로 엉키지 않으며 두드리고 비벼 빠는 세탁효과가 있다. In general, unlike the water tank washing machine which rotates the washing tank on the vertical axis to stir the laundry immersed in the washing water in the water tank by rotating the pulsator, the drum type washing machine rotates the drum into which the laundry is put. Washing by using falling friction force and the friction between the rotating drum and the laundry after moving, there is almost no damage to the laundry and the laundry is not tangled with each other and has a washing effect of pounding and scuffing.

도 1은 일반적인 드럼세탁기를 개략적으로 나타낸 단면도이다. 1 is a cross-sectional view schematically showing a general drum washing machine.

여기에 도시한 바와 같이, 세탁물(14)을 장입하고 있는 드럼(11) 둘레의 저수조(10)에는 일정수준까지의 수위(15)로 급수되어진 상태를 보이고 있다. 여기에서는, 드럼(11)이 회전하면 세탁수에 잠겨있던 세탁물(14)이 리프터(12)에 걸려 윗쪽으로 이동한 후 일정위치에 이르게 되면 자중에 의해 낙차되게 되며 이때의 낙차 력으로 세탁이 이루어지도록 하고 있다.As shown here, the water storage tank 10 around the drum 11 in which the laundry 14 is charged is shown to be supplied with water level 15 up to a predetermined level. In this case, when the drum 11 rotates, the laundry 14, which is locked in the washing water, is caught by the lifter 12 and moved upward, and when the drum 11 reaches a certain position, the drum 11 is dropped by its own weight. To lose.

또한, 드럼(11) 하부에는 세탁수를 가열하기 위한 히터(13)가 설치되어 삶아 빠는 세탁효과를 얻을 수 있도록 하고 있다.In addition, a heater 13 for heating the wash water is installed at the lower part of the drum 11 so as to obtain a boil-off washing effect.

도 2는 일반적인 드럼세탁기의 제어회로를 나타낸 블록구성도이다.2 is a block diagram showing a control circuit of a general drum washing machine.

여기에 도시한 바와 같이, 일반적인 드럼세탁기는 드럼(11) 내에 장입된 세탁물(14)의 중량값을 측정하기 위한 로드셀센서(21)와, 저수조(10) 내의 세탁수의 수위를 감지하기 위한 수위센서(29)와, 로드셀센서(21)와 수위센서(29)의 값을 입력받아 드럼세탁기의 전체동작을 제어하기 위한 마이컴(20)과, 마이컴(20)의 급수 제어신호에 따라 급수밸브(23)의 작동을 제어하기 위한 급수제어부(22)와, 마이컴(20)의 배수 제어신호에 따라 배수밸브(25)와 배수모터(26)의 작동을 제어하기 위한 배수제어부(24)와, 마이컴(20)의 모터 제어신호에 따라 드럼(11)을 회전시키기 위한 모터(28)의 작동을 제어하기 위한 모터구동제어부(27)와, 마이컴(20)의 제어신호에 따라 세탁수를 가열하기 위한 히터(13)로 이루어진다.As shown here, a general drum washing machine is a load cell sensor 21 for measuring the weight value of the laundry 14 loaded in the drum 11, and a water level for detecting the water level of the wash water in the reservoir 10. The water supply valve according to the water supply control signal of the microcomputer 20 and the microcomputer 20 for controlling the overall operation of the drum washing machine by receiving the values of the sensor 29, the load cell sensor 21, and the water level sensor 29. 23, a water supply control unit 22 for controlling the operation of the operation, a drain control unit 24 for controlling the operation of the drain valve 25 and the drain motor 26 in accordance with the drain control signal of the microcomputer 20, and the microcomputer The motor drive control unit 27 for controlling the operation of the motor 28 for rotating the drum 11 in accordance with the motor control signal of the (20), and for heating the wash water in accordance with the control signal of the microcomputer 20 It consists of a heater 13.

이와 같이 구성된 드럼세탁기의 동작을 설명하면 다음과 같다.Referring to the operation of the drum washing machine configured as described above are as follows.

먼저, 드럼세탁기의 도어를 열고 세탁물을 투입한 후 세탁운전 스타트 스위치를 온 시키면 드럼(11) 내에 투입된 세탁물(14)의 중량이 로드셀센서(21)에 의해 검출된다. 이렇게 로드셀센서(21)에 의해 검출된 세탁물의 중량은 마이컴(20)에 입력된다.First, when the door of the drum washing machine is opened and the laundry is put in and the washing operation start switch is turned on, the weight of the laundry 14 put into the drum 11 is detected by the load cell sensor 21. The weight of the laundry detected by the load cell sensor 21 is input to the microcomputer 20.

이에 따라 마이컴(20)은 메모리 테이블을 참조하여 급수량을 결정하고 급수제어부(22)에 제어명령을 출력하여 급수밸브(23)가 열려지도록 함으로써 급수가 시 작된다. 이렇게 급수가 진행되면 저수조(20)의 일측에 마련된 수위센서(29)에 의해 수위를 모니터링하여 그 검출수위값을 마이컴(20)에 제공한다. 그러면, 마이컴(20)은 입력되는 수위센서(29)로부터의 검출수위값을 통해 설정된 수위값에 도달하였는지 여부를 판단하여 검출수위값이 설정수위값에 도달하였으면 급수제어부(22)를 통해 급수밸브(23)를 차단하여 급수를 중단시킨다.Accordingly, the microcomputer 20 determines the water supply amount by referring to the memory table and outputs a control command to the water supply control unit 22 so that the water supply valve 23 is opened to start the water supply. When the water supply proceeds as described above, the water level is monitored by the water level sensor 29 provided at one side of the reservoir 20, and the detected water level value is provided to the microcomputer 20. Then, the microcomputer 20 determines whether the set water level value is reached based on the detected water level value from the input water level sensor 29. When the detected water level value reaches the set water level value, the water supply valve 22 supplies the water supply valve. Shut off (23) to stop water supply.

이렇게 드럼세탁기의 저수조(20)에 세탁물(14)에 대응하는 적정량의 세탁수가 저수 완료되고 나면 마이컴(20)은 내부의 세탁운전 프로그램에 따라 모터구동제어부(27)에 제어신호를 출력하여 모터(28)를 회전 구동시킨다. After the appropriate amount of washing water corresponding to the laundry 14 is stored in the water storage tank 20 of the drum washing machine, the microcomputer 20 outputs a control signal to the motor driving control unit 27 according to the internal washing operation program to supply the motor ( 28) is driven to rotate.

모터(28)가 회전 구동하면 저수조(20)내의 세탁 드럼(11)도 따라서 회전하게 되며 드럼(11) 내부의 리프터(12)에 의한 세탁물의 순차이동 및 낙차를 이용한 드럼세탁이 실행되게 된다.When the motor 28 is driven to rotate, the washing drum 11 in the reservoir 20 also rotates accordingly, and the drum washing using the sequential movement and washing of the laundry by the lifter 12 inside the drum 11 is performed.

한편, 배수펌프를 구비한 드럼세탁기의 경우 탈수 행정 진행 시 배수펌프를 통해 세탁조 내의 물을 배수한다. 그러나, 드럼의 회전력에 의해 물이 배수펌프 쪽으로 떨어지는 힘보다 터브를 타고 회전하려는 힘이 커져 터브와 드럼 사이에 물이 차는 현상이 발생함으로써 드럼에 과부하가 걸리고 탈수 효율이 저하되는 문제점이 있었다.On the other hand, the drum washing machine having a drain pump drains the water in the washing tank through the drain pump during the dehydration stroke. However, due to the rotational force of the drum, the force of turning the tub is greater than the force of the water dropping toward the drainage pump, resulting in a phenomenon of water filling between the tub and the drum, resulting in overloading of the drum and dehydration efficiency.

이에 본 발명은 상기와 같은 종래의 제반 문제점을 해소하기 위해 제안된 것으로, 본 발명은 탈수 행정 진행 시 세탁조 내의 물이 배수펌프 쪽으로 배수되지 않고 터브와 드럼 사이에 찬 상태에서 드럼이 동작함으로써 발생하는 과부하를 방지하여 탈수 효율을 향상시킬 수 있도록 한 드럼세탁기의 탈수 제어 방법을 제공하는 데 그 목적이 있다.Accordingly, the present invention has been proposed to solve the conventional problems as described above, the present invention is generated by operating the drum in the cold state between the tub and the drum without the water in the washing tank drained toward the drainage pump during the dehydration process It is an object of the present invention to provide a dehydration control method of a drum washing machine that can improve the dehydration efficiency by preventing overload.

상기와 같은 목적을 달성하기 위하여 본 발명의 기술적 사상에 의한 드럼세탁기의 탈수 제어 방법은, 드럼세탁기의 탈수 제어 방법에 있어서, 드럼에 과부하가 발생했는지 여부를 판단하는 단계와, 상기 드럼에 과부하가 발생한 경우 상기 드럼의 회전속도를 일정값 낮추는 단계와, 상기 일정값 낮춰진 회전속도로 상기 드럼을 일정시간 동작시킨 후 상기 드럼의 회전속도를 원래 상태로 복귀시키는 단계를 포함하여 이루어지는 것을 특징으로 한다.Dehydration control method of the drum washing machine according to the technical idea of the present invention, to achieve the above object, in the dehydration control method of the drum washing machine, the step of determining whether or not the drum is overloaded, and the drum is overloaded Reducing the rotational speed of the drum by a predetermined value, and operating the drum at a constant speed lowered by the predetermined speed, and then returning the rotational speed of the drum to its original state. .

여기서, 상기 드럼에 과부하가 발생했는지 여부를 판단하는 단계는, 상기 드럼에 인가되는 전류값을 측정하는 단계와, 상기 측정된 전류값을 측정하기 전의 전류값과 비교하는 단계와, 상기 측정된 전류값과 측정하기 전의 전류값이 3암페어 이상 차이가 나면 상기 드럼에 과부하가 발생한 것으로 판단하는 단계를 포함하여 이루어지는 것을 특징으로 한다.The determining of whether the drum is overloaded may include measuring a current value applied to the drum, comparing the measured current value with a current value before measuring the current value, and measuring the current value. And a step of determining that the drum is overloaded when a value and a current value before measurement differ by more than 3 amps.

이하, 상기와 같은 본 발명의 기술적 사상에 따른 실시예를 첨부한 도면을 참조하여 구체적으로 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, embodiments according to the spirit of the present invention as described above will be described in detail.

도 3은 본 발명의 실시예에 따른 드럼세탁기의 탈수 제어 방법을 설명하기 위한 흐름도이고, 도 4는 탈수 행정 시 드럼의 회전속도의 변화를 나타낸 도면이다.3 is a flowchart illustrating a dehydration control method of a drum washing machine according to an embodiment of the present invention, Figure 4 is a view showing a change in the rotational speed of the drum during the dehydration stroke.

여기에 도시한 바와 같이, 탈수 행정에 진입하게 되면 소정시간 동안 드럼을 좌, 우 교반시켜 세탁물의 밸런스를 맞춰줌과 동시에 드럼에 걸리는 부하를 측정하여 세탁물의 무게를 감지하고, 이렇게 감지된 세탁물의 무게에 따라 드럼의 회전속도(이하 RPM)의 피크치 및 전체 탈수 시간을 결정한다(S101).As shown here, when entering the dehydration stroke, the drum is left and right stirred for a predetermined time to balance the laundry, and at the same time, the load on the drum is measured to detect the weight of the laundry. According to the weight, the peak value of the rotation speed (hereinafter, RPM) of the drum and the total dehydration time are determined (S101).

이후, 드럼의 RPM을 일정 속도 높여 드럼을 가속시킨다(S102). 이때, 드럼에 인가되는 전류값을 측정하여(S103) 측정된 전류값이 측정하기 전의 전류값과 3암페어(A) 이상 차이가 발생하면(S104), 드럼에 과부하가 발생한 것으로 판단하여 드럼의 RPM을 일정값(10 RPM) 낮추고(S105), 일정값 낮춰진 RPM으로 상기 드럼을 일정시간(10초) 동작시킨다.Then, by raising the RPM of the drum to a certain speed to accelerate the drum (S102). At this time, if the current value applied to the drum is measured (S103) and a difference between the current value before the measured current value and 3 amperes (A) occurs (S104), it is determined that the drum is overloaded and the RPM of the drum To lower the constant value (10 RPM) (S105), and operate the drum for a predetermined time (10 seconds) at a constant lowered RPM.

참고로, 탈수 행정 시 드럼의 RPM은 도 4에 나타낸 바와 같이, 상기 단계(S101)에서 결정된 전체 탈수 시간에 따라 나누어진 소정 시간(현 단계 지속시간) 간격별로 저속에서 고속(피크치)까지 단계적으로 설정되기 때문에, 상기와 같이 드럼을 일정시간(10초) 동작시키게 될 경우 현 단계의 지속시간을 상기 일정시간(10초)만큼 연장시킨다(S106).For reference, as shown in FIG. 4, the RPM of the drum during the dehydration stroke is stepwise from low speed to high speed (peak value) at intervals of a predetermined time (current step duration) divided according to the total dehydration time determined in the step S101. Since it is set, if the drum is operated for a predetermined time (10 seconds) as described above, the duration of the current step is extended by the predetermined time (10 seconds) (S106).

이후, 상기 일정시간(10초)이 경과했는지 여부를 판단하여(S107) 일정시간(10초)이 경과했으면 드럼의 RPM을 원상 복귀시킨 다음(S108) 상기 현 단계 지속시간이 경과했는지 여부를 판단한다(S109).Thereafter, it is determined whether the predetermined time (10 seconds) has elapsed (S107). If a predetermined time (10 seconds) has elapsed, the RPM of the drum is returned to its original state (S108), and it is determined whether the current step duration has elapsed. (S109).

판단 결과, 상기 현 단계 지속시간이 경과했으면 상기 피크치 RPM에 도달했 는지 여부를 판단하여(S110) 피크치 RPM에 도달했으면 탈수를 종료하고 피크치 RPM에 도달하지 않았으면 상기 단계(S102)로 리턴한다.As a result of the determination, if the current step duration has elapsed, it is determined whether the peak value RPM is reached (S110). If the peak value RPM is reached, dehydration is terminated, and if the peak value RPM is not reached, the process returns to the step S102.

하지만, 판단 결과, 상기 현 단계 지속시간이 경과하지 않았으면 상기 단계(S103)로 리턴한다. However, if it is determined that the current step duration has not elapsed, the process returns to the step S103.

한편, 상기 단계에서 측정된 전류값이 측정하기 전의 전류값과 3암페어(A) 이상 차이가 발생하지 않으면 상기 단계(S109)를 수행한다.On the other hand, if the difference between the current value measured in the step and the current value before the measurement more than 3 amps (A) does not occur, the step (S109) is performed.

이와 같이, 본 발명의 실시예에 따른 드럼세탁기의 탈수 제어 방법은 탈수 진행 중 드럼의 RPM 상승 단계에서 드럼과 터브 사이에 물이 차서 드럼에 과부하가 걸리는 경우 드럼의 RPM을 낮추어 일정시간 동작시킨 후 드럼의 RPM을 원래의 상태로 복귀시킴으로써 탈수 시 드럼에 과부하가 걸리는 것을 방지하고 물을 배수펌프 쪽으로 원활하게 배수시킴으로써 탈수 효율을 향상시킬 수 있다.As described above, the dehydration control method of the drum washing machine according to an embodiment of the present invention lowers the RPM of the drum when water is charged between the drum and the tub during the dehydration of the drum while the drum rises, and then operates the drum for a predetermined time. By returning the RPM of the drum to its original state, it is possible to prevent overload of the drum during dehydration and to improve the dewatering efficiency by smoothly draining the water to the drain pump.

이상에서 본 발명의 바람직한 실시예를 설명하였으나, 본 발명은 다양한 변화와 변경 및 균등물을 사용할 수 있다. 본 발명은 상기 실시예를 적절히 변형하여 동일하게 응용할 수 있음이 명확하다. 따라서 상기 기재 내용은 하기 특허청구범위의 한계에 의해 정해지는 본 발명의 범위를 한정하는 것이 아니다. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

이상에서 살펴본 바와 같이, 본 발명에 의한 드럼세탁기의 탈수 제어 방법은 탈수 진행 중 드럼의 RPM 상승 단계에서 드럼과 터브 사이에 물이 차서 드럼에 과부하가 걸리는 경우 드럼의 RPM을 낮추어 일정시간 동작시킨 후 드럼의 RPM을 원래 의 상태로 복귀시킴으로써 탈수 시 드럼에 과부하가 걸리는 것을 방지하고 물을 배수펌프 쪽으로 원활하게 배수시킴으로써 탈수 효율을 향상시킬 수 있다.As described above, the dehydration control method of the drum washing machine according to the present invention lowers the RPM of the drum when water is charged between the drum and the tub in the step of raising the drum during dehydration, and then operates the drum for a predetermined time. By returning the drum RPM to its original state, it is possible to prevent overloading of the drum during dehydration and to improve the dewatering efficiency by smoothly draining the water to the drain pump.

Claims (2)

드럼세탁기의 탈수 제어 방법에 있어서,In the drum washing machine dehydration control method, 드럼에 과부하가 발생했는지 여부를 판단하는 단계와;Determining whether an overload has occurred in the drum; 상기 드럼에 과부하가 발생한 경우 상기 드럼의 회전속도를 일정값 낮추는 단계와;Lowering the rotation speed of the drum by a predetermined value when the drum is overloaded; 상기 일정값 낮춰진 회전속도로 상기 드럼을 일정시간 동작시킨 후 상기 드럼의 회전속도를 원래 상태로 복귀시키는 단계를 포함하여 이루어지는 것을 특징으로 하는 드럼세탁기의 탈수 제어 방법.And operating the drum at a predetermined speed lowered for a predetermined time, and then returning the drum's rotational speed to its original state. 제1항에 있어서, 상기 드럼에 과부하가 발생했는지 여부를 판단하는 단계는,The method of claim 1, wherein the determining whether the drum has an overload has occurred. 상기 드럼에 인가되는 전류값을 측정하는 단계와;Measuring a current value applied to the drum; 상기 측정된 전류값을 측정하기 전의 전류값과 비교하는 단계와;Comparing the measured current value with a current value before measurement; 상기 측정된 전류값과 측정하기 전의 전류값이 3암페어 이상 차이가 나면 상기 드럼에 과부하가 발생한 것으로 판단하는 단계를 포함하여 이루어지는 것을 특징으로 하는 드럼세탁기의 탈수 제어 방법.And determining that the drum is overloaded when the measured current value and the current value before measurement differ by more than 3 amps.
KR1020060038387A 2006-04-27 2006-04-27 Method for controlling dehydration in drum washing machine KR101165009B1 (en)

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KR100249688B1 (en) 1997-07-21 2000-03-15 구자홍 A washing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100249688B1 (en) 1997-07-21 2000-03-15 구자홍 A washing machine

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