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KR100778696B1 - Water Supply Control Method of Drum Washing Machine - Google Patents

Water Supply Control Method of Drum Washing Machine Download PDF

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KR100778696B1
KR100778696B1 KR1020060016872A KR20060016872A KR100778696B1 KR 100778696 B1 KR100778696 B1 KR 100778696B1 KR 1020060016872 A KR1020060016872 A KR 1020060016872A KR 20060016872 A KR20060016872 A KR 20060016872A KR 100778696 B1 KR100778696 B1 KR 100778696B1
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water supply
water
water level
level
washing machine
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KR1020060016872A
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Korean (ko)
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KR20070087948A (en
Inventor
강성구
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주식회사 대우일렉트로닉스
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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 
    • D06F33/30Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/087Water level measuring or regulating devices
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18Washing liquid level
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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

Abstract

본 발명은 드럼세탁기의 급수 제어방법에 관한 것으로서, 드럼세탁기의 급수행정시 초기 설정시간 동안 모터의 동작없이 급수한 수위를 통해 시간당 급수량을 계산한 후 모터를 동작시켜가면서 급수할 때 설정수위 이상 급수될 경우 계산된 시간당 급수량에 따라 급수시간을 설정하여 급수시간만큼 급수한 후 급수행정을 종료함으로써 정확한 급수관리가 이루어질 수 있을 뿐만 아니라 물낭비나 성능저하를 방지할 수 있는 이점이 있다. The present invention relates to a water supply control method of a drum washing machine, wherein the water supply is higher than the set level when water is supplied while operating the motor after calculating the water supply per hour through the water supply level without the operation of the motor during the initial setting time of the drum washing machine. If the water supply time is set according to the calculated hourly water supply time by supplying water supply time after the water supply administration can be done not only accurate water management can be achieved, but also has the advantage of preventing waste of water and performance degradation.

드럼세탁기, 급수, 급수시간, 급수량, 수위 Drum washing machine, water supply, water supply time, water supply level

Description

드럼세탁기의 급수 제어방법{CONTROL METHOD FOR SUPPLYING WATER IN DRUM TYPE WASHING MACHINE}CONTROL METHOD FOR SUPPLYING WATER IN DRUM TYPE WASHING MACHINE}

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

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

도 3은 본 발명에 의한 드럼세탁기의 급수 제어방법을 설명하기 위한 흐름도이다. 3 is a flowchart illustrating a water supply control method of a drum washing machine according to the present invention.

- 도면의 주요부분에 대한 부호의 설명 -   -Explanation of symbols for the main parts of the drawings-

10 : 저수조 11 : 드럼10: reservoir 11: drum

12 : 리프터 13 : 세탁히터12: lifter 13: laundry heater

14 : 세탁물 20 : 마이컴14: laundry 20: micom

21 : 로드셀센서 22 : 급수제어부21: load cell sensor 22: water supply control unit

23 : 급수밸브 24 : 배수제어부23: water supply valve 24: drain control unit

25 : 배수모터 26 : 배수밸브25: drain motor 26: drain valve

27 : 모터구동제어부 28 : 모터27: motor drive control unit 28: motor

29 : 수위센서29: water level sensor

본 발명은 드럼세탁기의 급수 제어방법에 관한 것으로서, 보다 상세하게는 드럼세탁기의 급수행정시 초기 설정시간 동안 모터의 동작없이 급수한 수위를 통해 시간당 급수량을 계산한 후 모터를 동작시켜가면서 급수할 때 설정수위 이상 급수될 경우 계산된 시간당 급수량에 따라 급수시간을 설정하여 급수시간만큼 급수한 후 급수행정을 종료함으로써 물낭비나 성능저하를 방지할 수 있도록 한 드럼세탁기의 급수 제어방법에 관한 것이다. The present invention relates to a water supply control method of a drum washing machine, and more particularly, when water is supplied while operating the motor after calculating the water supply amount per hour through the water supply level without the operation of the motor during the initial set time during the water supply administration of the drum washing machine. The present invention relates to a water supply control method of a drum washing machine that can prevent water waste or performance deterioration by setting a water supply time according to the calculated hourly water supply and supplying water for the water supply time, and then ending the water supply stroke.

일반적으로 세탁기는 때가 묻은 의류를 세제의 유화작용, 회전운동에 따른 세탁수류의 마찰작용과 세탁물과의 충격작용 등을 이용하여 의복, 침구의 세탁물에 부착되어 있는 오염물을 빠르고 깨끗하게 세탁하는 기계장치로서, 특히, 드럼세탁기는 수직축 상에서 세탁조를 회전시키는 저수조형 세탁기가 펄세이터의 회전구동을 통하여 저수조 내의 세탁수에 잠겨진 세탁물을 교반 세탁하는 것과는 달리 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, a washing machine is a machine for quickly and cleanly washing contaminants attached to clothes and bedding by using emulsification of detergents, friction of washing water due to rotational movements, and impact with laundry. In particular, the drum washing machine moves the laundry by rotating the drum in which the laundry is inserted horizontally, unlike the washing machine in which the washing machine rotates the washing tank on a vertical axis to stir and wash the laundry immersed in the washing water in the storage tank by rotating the pulsator. After washing by using the falling power of falling and the friction between the rotating drum and the laundry, there is almost no damage to the laundry and the laundry is not tangled with each other, there is a laundry 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 도시된 바와 같이 세탁물(14)을 장입하고 있는 드럼(11) 둘레의 저수조(10)에는 일정수준까지의 수위(15)로 급수되어진 상태를 보이고 있다. 여기에서는, 드 럼(11)이 회전하면 세탁수에 잠겨있던 세탁물(14)이 리프터(12)에 걸려 윗쪽으로 이동한 후 일정위치에 이르게 되면 자중에 의해 낙차되게 되며 이때의 낙차력으로 세탁이 이루어지도록 하고 있다.As shown here, the reservoir 10 around the drum 11, which is loaded with the laundry 14, shows a state in which water is supplied to the water level 15 up to a predetermined level. In this case, when the drum 11 rotates, the laundry 14, which has been 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 14 is dropped by its own weight. To be done.

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

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

여기에 도시된 바와 같이 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 급수밸브의 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 세탁히터(13)로 이루어진다. As shown here, the load cell sensor 21 for measuring the weight value of the laundry 14 loaded in the drum 11, the water level sensor 29 for detecting the water level of the wash water in the reservoir 10 and For receiving the values of the load cell sensor 21 and the water level sensor 29, the microcomputer 20 for controlling the overall operation of the drum washing machine and the water supply control signal of the microcomputer 20 for controlling the operation of the water supply valve. In response to the water supply control unit 22, the 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 motor control signal of the microcomputer 20 Accordingly, the motor driving control unit 27 for controlling the operation of the motor 28 for rotating the drum 11, and the laundry heater 13 for heating the wash water in accordance with the control signal of the microcomputer 20.

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 중량을 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 load cell sensor 21 detects the weight of the laundry 14 put into the drum 11. 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 세탁수위를 결정하고 급수제어부(22)에 제어명령을 출력하여 급수밸브(23)가 열려지도록 함으로써 급수가 시작된다. 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 세탁수위값에 도달하였는지 여부를 판단하여 검출수위값이 세탁수위값에 도달하였으면 급수제어부(22)를 통해 급수밸브(23)를 차단하여 급수를 중단시킨다.Accordingly, the microcomputer 20 determines the washing water level with reference 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 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 washing water level value has been reached based on the detected water level value from the water level sensor 29 which is input. Shut off valve 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 회전구동 시킨다. 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 ( Rotate 28).

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 실행되고 이후 헹굼 및 탈수 행정을 통해 세탁을 완료하게 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 sequential movement of the laundry and free fall by the lifter 12 inside the drum 11 is performed and then rinsed. And the washing is completed through the dehydration stroke.

그런데, 위에서 세탁수를 급수할 때 세탁물에 충분히 세탁수가 흡수될 수 있도록 모터를 18초 동안 동작시킨 후 7초 동안 정지시키는 좌우반전 작동을 시키면서 급수를 수행하게 된다. However, when the washing water is supplied from above, the water is performed while operating the motor for 18 seconds to stop the washing for 7 seconds so that the washing water is sufficiently absorbed in the laundry.

따라서, 급수가 이루어지는 동안 저수조(10)의 수위가 계속적으로 흔들려 수위를 측정할 수 없기 때문에 정확한 수위를 측정하기 위해서 모터가 정지되는 7초 중 마지막 2초간 세탁수위를 측정하여 설정된 세탁수위에 도달했는가를 판단하여 급수를 정지하고 세탁행정으로 진입하거나 계속해서 급수를 하게 된다. Therefore, since the water level of the water tank 10 is continuously shaken while the water is being supplied, the water level cannot be measured. Therefore, in order to measure the correct water level, did the washing water level be reached by measuring the washing level for the last 2 seconds of stopping the motor? The water supply is stopped and the water enters the washing administration or continues to supply water.

그런데, 세탁수위를 측정한 시점에 설정된 세탁수위에 조금 미치지 못했을 경우에는 즉, 약 3 mm 가 부족할 경우 다시 세탁수위를 측정하기 위한 시점까지인, 모터가 동작되는 18초와 모터가 정지한 후 안정되기 위한 5초를 포함한 23초 동안 급수가 이루어질 경우 과도한 급수가 이루어져 많은 양의 물이 낭비될 뿐만 아니라 세탁성능의 저하가 발생하는 문제점이 있다. However, if the washing level is slightly below the set washing level at the time of measuring the washing water level, that is, when the level of washing is insufficient, it is stable until 18 seconds when the motor is operated and the motor stops. If the water is made for 23 seconds, including 5 seconds to become excessive water is wasted and a large amount of water is wasted, there is a problem that the washing performance is reduced.

본 발명은 상기와 같은 문제점을 해결하기 위해 창작된 것으로서, 본 발명의 목적은 드럼세탁기의 급수행정시 초기 설정시간 동안 모터의 동작없이 급수한 수위를 통해 시간당 급수량을 계산한 후 모터를 동작시켜가면서 급수할 때 설정수위 이상 급수될 경우 계산된 시간당 급수량에 따라 급수시간을 설정하여 급수시간만큼 급수한 후 급수행정을 종료함으로써 물낭비나 성능저하를 방지할 수 있도록 한 드럼세탁기의 급수 제어방법을 제공함에 있다. The present invention was created to solve the above problems, an object of the present invention is to operate the motor after calculating the amount of water per hour through the water level without the operation of the motor during the initial set time during the water supply administration of the drum washing machine When water is supplied above the set water level, water supply time is set according to the calculated hourly water supply and water supply time is supplied. Then, water supply control method of the drum washing machine is provided to prevent water waste and performance deterioration by ending the water supply administration. Is in.

상기와 같은 목적을 이루기 위한 본 발명은 세탁물에 따라 목표수위를 설정하고 설정시간 동안 급수를 수행한 후 초기수위를 측정하는 제 1단계와, 초기수위를 측정한 후 모터를 좌우반전 시키면서 급수를 진행하면서 수위를 측정하는 제 2단계와, 측정된 수위가 설정된 목표수위를 넘을 경우 급수를 중단하고 세탁행정으로 진입하며 측정수위가 설정수위 미만일 경우 제 2단계로 리턴되고 측정수위가 설정수위 이상이고 목표수위 미만일 경우 설정시간 동안 급수한 초기수위에 기반하여 시간당 급수량을 산출하는 제 3단계와, 산출된 시간당 급수량에 따라 목표수위까지의 급수시간을 산출하여 급수시간 동안 급수한 후 급수를 중단하고 세탁행정으로 진입하는 제 4단계로 이루어진 것을 특징으로 한다. The present invention for achieving the above object is the first step of setting the target water level according to the laundry and performing the water supply for the set time, and then measure the initial water level, and proceeds to the water supply while measuring the initial water level and inverting the motor left and right The second step of measuring the water level, and when the measured water level exceeds the set target water level, stops water supply and enters the washing stroke. If the water level is less than the set water level, it returns to the second level and the water level is above the set water level. If the water level is less than the third step of calculating the hourly water supply based on the initial water level during the set time, and calculate the water supply time to the target water level according to the calculated hourly water supply, supply the water for the water supply time, stop the water supply and wash Characterized in that the fourth step to enter into.

본 발명에서 초기수위를 측정하기 위해 급수하는 설정시간은 50초인 것을 특징으로 한다. In the present invention, the set time of supplying water to measure the initial water level is characterized in that 50 seconds.

본 발명에서 수위를 측정할 때 모터를 18초 동안 동작시키고 7초 동안 정지시키면서 좌우반전 시키는 모터의 좌우반전 동작 중 정지된 7초 중 마지막 2초 내에 측정하는 것을 특징으로 한다. In the present invention, the water level is measured within the last 2 seconds of the stopped 7 seconds during the left and right reverse operation of the motor while operating the motor for 18 seconds and stopped for 7 seconds when measuring the water level.

본 발명에서 설정수위는 목표수위 - 40mm 인 것을 특징으로 한다. In the present invention, the set water level is characterized in that the target water level-40mm.

위와 같이 이루어진 본 발명은 드럼세탁기에서 세탁을 위한 급수시 시간당 급수량을 산출할 수 있도록 모터의 동작없이 설정시간동안 급수를 수행한 후 초기수위를 측정하고, 이후 모터를 좌우반전 시키면서 급수하여 측정한 측정수위가 설정수위 이상이고 목표수위 미만인 경우 초기수위를 기반으로 시간당 급수량을 산출하여 추가 급수시간을 산출하고 산출된 급수시간동안만 급수함으로써 정확한 급수관리 및 물낭비나 세탁 성능저하를 방지할 수 있도록 한다. The present invention made as described above measured the initial water level after performing the water supply for a set time without the operation of the motor to calculate the water supply time for washing in the drum washing machine, and then measured by water supply while inverting the motor left and right If the water level is above the set water level and below the target water level, the additional water supply time is calculated by calculating the water supply hourly based on the initial water level, and water is supplied only during the calculated water supply time, so that accurate water management and water waste or washing performance can be prevented. .

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명하며 종래 구성과 동일한 부분은 동일한 부호 및 명칭을 사용한다. 또한 본 실시예는 본 발명의 권리범위를 한정하는 것은 아니고, 단지 예시로 제시된 것이며 당 분야에서 통상의 지식을 가진 자라면 본 발명의 기술적 사상 내에서 많은 변형이 가능할 것이다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings, and the same parts as in the prior art use the same reference numerals and names. In addition, the present embodiment is not intended to limit the scope of the present invention, but is presented by way of example only and those skilled in the art will be capable of many modifications within the technical spirit of the present invention.

도 3은 본 발명에 의한 드럼세탁기의 급수 제어방법을 설명하기 위한 흐름도이다. 3 is a flowchart illustrating a water supply control method of a drum washing machine according to the present invention.

여기에 도시된 바와 같이 먼저 드럼세탁기의 도어를 열고 세탁물을 투입한 후 세탁운전 스타트 스위치를 온 시키면 드럼(11) 내에 투입된 세탁물(14)의 중량을 로드셀센서(21)에 의해 검출된다. As shown here, when the door of the drum washing machine is first opened, 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.

이렇게 로드셀센서(21)에 의해 검출된 세탁물의 중량은 마이컴(20)에 입력된다. 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 목표수위가 결정하고 급수제어부(22)에 제어명령을 출력하여 급수밸브(23)가 열려지도록 함으로써 급수가 시작된다(S10). Accordingly, the microcomputer 20 determines the target water level with reference 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 (S10).

이렇게 목표수위가 결정된 후 50초 동안 모터(28)의 좌우반전동작 없이 급수를 수행한 후 초기수위를 측정한다(S12)(14). After the target water level is determined as described above, water is performed after the water supply is performed for 50 seconds without the left and right reverse operation of the motor 28 (S12) (14).

즉, 집집마다 급수되는 수압이 상이함에 따라 급수초기에 설정시간 동안 급수된 초기수위를 측정함으로써 이후 시간당 급수량을 산출하여 급수시간에 따른 급수량을 산출할 수 있도록 한다. That is, since the water pressure supplied to each house is different, by measuring the initial water level supplied during the set time at the beginning of the water supply to calculate the amount of water according to the water supply time to calculate the water supply according to the water supply time.

이렇게 초기수위를 측정한 후 종래의 일반적인 급수행정과 동일하게 모터(28)의 좌우반전동작을 수행하면서 급수를 수행하여 세탁물에 세탁수가 충분히 흡수되면서 급수될 수 있도록 한다(S16)(S18). After measuring the initial water level so as to perform the water supply while performing the left and right reverse operation of the motor 28 in the same manner as the conventional water supply stroke so that the wash water is sufficiently absorbed in the laundry (S16) (S18).

이때 모터(28)의 좌우반전 동작은 18초 동안 모터(28)를 동작시키고 7초 동안 모터(28)를 정지시키는 동작을 반복하면서 모터(28)의 방향을 좌우로 반전시킨다. At this time, the left and right reverse operation of the motor 28 reverses the direction of the motor 28 from side to side while repeating the operation of operating the motor 28 for 18 seconds and stopping the motor 28 for 7 seconds.

이와 같이 모터(28)의 좌우반전 동작이 수행되는 동안에는 저수조(10)의 수위가 계속적으로 흔들려 수위를 측정할 수 없기 때문에 정확한 수위를 측정하기 위해서 모 터가 정지되는 7초 중 마지막 2초간 세탁수위를 측정한다(S20). As the water level of the reservoir 10 is continuously shaken while the left and right reverse operation of the motor 28 is performed as described above, the level of washing for the last 2 seconds of the 7 seconds when the motor is stopped to measure the level is accurate. Measure (S20).

이렇게 측정된 측정수위를 설정된 목표수위와 비교하여 목표수위를 넘을 경우 급수를 중단하고 이후 행정인 세탁행정으로 진입하게 된다(S22)(S24). When the measured water level is thus compared with the set water level, the water level is stopped and the water supply is stopped and then enters the administrative laundry (S22) (S24).

그러나, 측정된 측정수위가 목표수위에 미치지 못할 경우에는 측정수위가 목표수위보다 얼마나 미치지 못하는가를 설정수위와 비교하여 판단한다(S26). 이때 설정수위 = (목표수위 - 40mm) 로 한다. However, if the measured measurement level does not reach the target level, it is determined by comparing with the set level how far the measurement level is below the target level (S26). At this time, set water level = (target water level-40mm).

따라서, 측정수위가 설정수위 미만일 경우에는 모터(28)를 좌우반전시키면서 급수하는 단계로 리턴되어 23초 후 다시 수위를 측정하게 된다(S16~S18).Therefore, when the measured water level is less than the set water level, the water level is returned to the step of inverting the motor 28 left and right, and the water level is measured again after 23 seconds (S16 to S18).

그러나, 측정수위가 설정수위 이상이고 목표수위 미만일 경우에는 즉, 30mm 부족할 경우 초기 급수시 모터(28)를 동작시키지 않고 50초 동안 급수하여 측정한 초기수위를 기반으로 시간당 급수량을 산출한다(S28). However, when the measured water level is above the set water level and below the target water level, that is, when 30 mm is insufficient, the water supply per hour is calculated based on the initial water level measured by supplying water for 50 seconds without operating the motor 28 at the initial water supply (S28). .

그런 다음 시간당 급수량에 따라 부족한 수위를 보충하기 위한 급수시간을 산출한다(S30). 이때 시간당 급수량이 초당 1.5mm라고 할 때 30mm를 급수하기 위한 시간은 20초로써 급수시간은 20초가 산출된다. Then calculate the water supply time for replenishing the insufficient water level according to the hourly water supply (S30). When the hourly water supply is 1.5mm per second, the time for watering 30mm is 20 seconds and the watering time is 20 seconds.

이후 산출된 급수시간에 따라 급수를 진행한 후 급수를 중단하고 이후 행정인 세탁행정으로 진입하게 된다(S32)(S24). After the water supply proceeds according to the calculated water supply time and then stops the water supply and then enters the administration administration (S32) (S24).

상기한 바와 같이 본 발명은 드럼세탁기의 급수행정시 초기 설정시간 동안 모터의 동작없이 급수한 수위를 통해 시간당 급수량을 계산한 후 모터를 동작시켜가면서 급수할 때 설정수위 이상 급수될 경우 계산된 시간당 급수량에 따라 급수시간을 설정하여 급수시간만큼 급수한 후 급수행정을 종료함으로써 정확한 급수관리가 이루어질 수 있을 뿐만 아니라 물낭비나 성능저하를 방지할 수 있는 이점이 있다. As described above, the present invention calculates the water supply per hour through the water supply level without the operation of the motor during the initial setting time during the water supply administration of the drum washing machine, and then calculates the water supply per hour when water is supplied above the set water level when the water is being operated while operating the motor. By setting the water supply time according to the water supply time after the water supply administration by the end of the water supply can not only accurate water management can be achieved, but also has the advantage of preventing water wastage or performance degradation.

Claims (4)

세탁물에 따라 목표수위를 설정하고 설정시간 동안 급수를 수행한 후 초기수위를 측정하는 제 1단계와, The first step of setting the target water level according to the laundry, watering for a set time, and then measuring the initial water level, 상기에서 초기수위를 측정한 후 모터를 좌우반전 시키면서 급수를 진행하면서 수위를 측정하는 제 2단계와, A second step of measuring the water level while proceeding with water supply while measuring the initial water level and then reversing the motor left and right, 상기에서 측정된 측정수위가 상기에서 설정된 목표수위를 넘을 경우 급수를 중단하고 세탁행정으로 진입하며 상기 측정수위가 설정수위 미만일 경우 상기 제 2단계로 리턴되고 상기 측정수위가 상기 설정수위 이상이고 상기 목표수위 미만일 경우 상기에서 설정시간 동안 급수한 상기 초기수위에 기반하여 시간당 급수량을 산출하는 제 3단계와, If the measured water level is above the target water level set above, the water supply is stopped and the washing stroke is entered. If the water level is less than the water level, the water level is returned to the second step and the water level is above the water level and the target water level. A third step of calculating an hourly water supply amount based on the initial water level supplied during the set time when the water level is lower than the water level; 상기에서 산출된 시간당 급수량에 따라 상기 목표수위까지의 급수시간을 산출하여 상기 급수시간 동안 급수한 후 급수를 중단하고 세탁행정으로 진입하는 제 4단계A fourth step of calculating a water supply time to the target water level according to the calculated hourly water supply amount, supplying water for the water supply time, stopping water supply, and entering a washing administration 로 이루어진 것을 특징으로 하는 드럼세탁기의 급수 제어방법. Water supply control method of the drum washing machine, characterized in that consisting of. 제 1항에 있어서, 상기에서 초기수위를 측정하기 위해 급수하는 설정시간은 50초인 것을 특징으로 하는 드럼세탁기의 급수 제어방법. The method of claim 1, wherein the set time of supplying water to measure the initial water level is 50 seconds. 제 1항에 있어서, 상기에서 수위를 측정할 때 모터를 18초 동안 동작시키고 7초 동안 정지시키면서 좌우반전 시키는 상기 모터의 좌우반전 동작 중 정지된 7초 중 마 지막 2초 내에 측정하는 것을 특징으로 하는 드럼세탁기의 급수 제어방법. The method of claim 1, wherein the measurement of the water level is performed within the last two seconds of the stopped seven seconds of the left and right reverse operation of the motor that operates the motor for 18 seconds and stops left and right while stopping for 7 seconds. Water supply control method of the drum washing machine. 제 1항에 있어서, 상기 설정수위는 목표수위 - 40mm 인 것을 특징으로 하는 드럼세탁기의 급수 제어방법. The water supply control method of a drum washing machine according to claim 1, wherein the set water level is a target water level-40 mm.
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KR20000051554A (en) * 1999-01-23 2000-08-16 윤종용 Wash and rinse period c0ntrol method in a laundry
KR20050066437A (en) * 2003-12-26 2005-06-30 엘지전자 주식회사 (a) drum washing machine and method of controlling the same

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