KR20040009851A - Method of controlling supply water for a washing machine - Google Patents

Method of controlling supply water for a washing machine Download PDF

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Publication number
KR20040009851A
KR20040009851A KR1020020044210A KR20020044210A KR20040009851A KR 20040009851 A KR20040009851 A KR 20040009851A KR 1020020044210 A KR1020020044210 A KR 1020020044210A KR 20020044210 A KR20020044210 A KR 20020044210A KR 20040009851 A KR20040009851 A KR 20040009851A
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South Korea
Prior art keywords
water
water level
washing
level
water supply
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KR1020020044210A
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Korean (ko)
Inventor
원종훈
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삼성전자주식회사
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Priority to KR1020020044210A priority Critical patent/KR20040009851A/en
Publication of KR20040009851A publication Critical patent/KR20040009851A/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
    • D06F39/087—Water level measuring or regulating devices
    • 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
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • 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
    • D06F39/088—Liquid supply arrangements

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

Abstract

PURPOSE: A water supply control method for a washing machine is provided to prevent waste of water by feeding washing water regularly regardless of the difference between the present water level and the predetermined water level in supplying water again. CONSTITUTION: A feed valve is opened by a feed valve driving unit to supply water to a rotating tub(S100), and the water level is compared with a first predetermined water level(S102). The feed valve is closed to finish supplying water(S103), and washing is performed by agitating the rotating tub with a motor(S104). A control unit measures the water level in the rotating tub by a water level detecting unit in washing for the predetermined time(S105), and compares the present water level with a second predetermined value lower than the first predetermined value for supply water again(S106). Water is supplied again by opening the feed valve if the water level is less than the second predetermined value(S107), and the present water level is read by the control unit in feeding water again(S108). The control unit compares the present water level with a third predetermined value, and closes the feed valve for finishing supplying water(S110).

Description

세탁기의 급수 제어방법{Method of controlling supply water for a washing machine}Method of controlling supply water for a washing machine}

본 발명은 세탁기의 제어방법에 관한 것으로, 특히 정확한 보급수를 급수하기 위한 세탁기의 급수 제어방법에 관한 것이다.The present invention relates to a control method of a washing machine, and more particularly, to a water supply control method of a washing machine for supplying accurate replenishment water.

일반적으로, 드럼 세탁기는 드럼형상으로 마련된 회전조의 회전으로 생긴 낙차를 이용하여 세탁물을 두드려 빠는 방식으로 빨래방망이로 두드려주는 것과 같은 효과로 세탁물의 꼬임에 의한 손상이 상대적으로 적은 이점이 있는 장치이다.In general, a drum washing machine is a device having an advantage that the damage caused by the twist of the laundry is relatively small in the same effect as tapping the laundry by tapping the laundry using a drop generated by the rotation of the rotating tub provided in a drum shape.

도 1은 종래의 드럼 세탁기에서 세탁수를 급수하는 방법에 대한 제어흐름도이다.1 is a control flowchart of a method of supplying washing water in a conventional drum washing machine.

도 1을 살펴보면, 사용자가 세탁물과 세제를 회전조에 넣고, 세탁물의 종류와 양과 같은 세탁정보를 입력하면, 먼저, 전체 세탁 과정을 제어하는 제어부는 회전조 내부에 세탁수를 초기 급수하기 위해 급수밸브를 연다(S10).Referring to FIG. 1, when a user puts laundry and detergent into a rotary bath and inputs laundry information such as the type and amount of laundry, the controller controlling the overall washing process first supplies a water supply valve to initially supply the washing water to the rotary bath. Open (S10).

급수밸브가 열림에 따라 회전조에 세탁수가 급수되면, 제어부는 수위센서를 통해 세탁조 내부의 수위를 읽어 들인다(S11).When the washing water is supplied to the rotating tank as the water supply valve is opened, the control unit reads the water level inside the washing tank through the water level sensor (S11).

이어서, 제어부는 회전조 내의 수위가 설정수위에 도달했는지를 알기 위해 읽어 들인 수위값과 미리 설정된 수위값을 비교한다(S12). 이때, 미리 설정된 수위값은 세탁물의 종류와 양에 따라 미리 설정된 값이다.Subsequently, the controller compares the read water level value with the preset water level value to know whether the water level in the rotating tank has reached the set water level (S12). In this case, the preset water level value is a preset value according to the type and amount of laundry.

비교결과 읽어 들인 수위값이 미리 설정된 제 1설정값인 경우, 제어부는 초기 급수를 완료하기 위해 급수밸브를 닫는다(S13).When the level value read as a result of the comparison is the first preset value, the control unit closes the water supply valve to complete the initial water supply (S13).

초기급수가 완료되면, 제어부는 회전조를 교반 회전시키는 모터를 구동하여 세탁을 수행한다(S14). 이때, 회전조의 교반회전에 따라 세탁물이 골고루 젖게 되어 물을 흡수하게 된다. 이에 따라, 회전조 내의 수위가 설정수위 이하로 낮아져세탁수를 재급수해야 한다.When the initial water supply is completed, the control unit performs the washing by driving the motor to rotate the rotating tub (S14). At this time, the laundry is evenly wetted by the rotation of the rotating tub to absorb water. Accordingly, the water level in the rotating tank is lowered below the set water level, and the washing water must be resupplied.

단계(S14)에서 세탁이 미리 설정된 시간동안 수행되면, 제어부는 수위센서를 통해 회전조 내의 현재 수위를 읽어 들인다(S15).When the washing is performed for a predetermined time in step S14, the control unit reads the current level in the rotating tank through the water level sensor (S15).

이어서, 제어부는 재급수가 필요한지를 알기 위해 읽어 들인 현재 수위값과 제 1설정값보다 낮게 설정된 제 2설정값을 비교한다(S16).Subsequently, the controller compares the current water level value read in order to know whether re-water supply is necessary and the second set value set lower than the first set value (S16).

비교결과 세탁물이 물을 흡수하여 읽어 들인 수위값이 제 2설정값보다 적은 경우, 제어부는 세탁수를 재급수하기 위해 급수밸브를 연다(S17).As a result of the comparison, when the laundry level absorbs water and reads the water level lower than the second set value, the controller opens the water supply valve to resupply the washing water (S17).

급수밸브가 열림에 따라 재급수가 이루어지면, 제어부는 수위센서를 통해 회전조 내의 현재 수위를 읽어 들인다(S18).When the water supply valve is re-supplied as the opening, the control unit reads the current level in the rotating tank through the water level sensor (S18).

이어서, 제어부는 읽어 들인 현재 수위가 설정 수위에 도달했는지를 알기 위해 읽어 들인 현재 수위값과 제 1설정값을 비교한다(S19).Subsequently, the controller compares the read current level value with the first set value in order to know whether the read current level has reached the set level (S19).

비교결과 읽어 들인 현재 수위값이 제 1설정값에 도달한 경우, 제어부는 재급수를 완료하기 위해 급수밸브를 닫는다(S20).When the current water level value read as a result of the comparison reaches the first set value, the control unit closes the water supply valve to complete the water supply (S20).

보통 세탁물 자체가 물을 잘 흡수하는 재질의 옷감이거나, 세탁물의 양이 많은 경우에는 세탁물이 물을 많이 흡수하게 된다.Usually, the laundry itself is a cloth of a material that absorbs water well, or when the amount of laundry is large, the laundry absorbs a lot of water.

그러나, 종래의 세탁기의 급수 제어방법에서는 세탁수의 재급수시 회전조 내의 수위를 초기 급수시의 수위로 유지시키기 위해 세탁수를 공급하고 있다.However, in the conventional water supply control method of the washing machine, the washing water is supplied to maintain the water level in the rotating tub at the time of initial water supply when washing water is supplied again.

따라서, 회전조 내의 수위를 세탁물의 종류와 양에 대해 양호한 세탁이 수행될 수 있도록 결정된 설정수위로 유지한다고 해도 세탁물에 흡수된 물을 고려하면, 결국 설정수위 이상의 세탁수를 공급하게 되는 경우가 생기게 되어 세탁수가 불필요하게 소비되는 문제점이 있다.Therefore, even if the water level in the rotating tank is maintained at the set level determined so that good washing can be performed with respect to the type and quantity of the laundry, considering the water absorbed in the laundry, there is a case where the wash water above the set level is eventually supplied. There is a problem that the washing water is unnecessary.

본 발명은 전술한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 세탁수의 재급수시 세탁수의 현재수위와 설정수위의 수위차이에 관계없이 일정량의 세탁수를 급수하는 데 있다.The present invention is to solve the above problems, an object of the present invention is to supply a certain amount of washing water irrespective of the difference in the water level between the current water level and the set water level of the wash water when re-water supply.

도 1은 종래의 드럼 세탁기에서 세탁수를 급수하는 방법에 대한 제어흐름도이다.1 is a control flowchart of a method of supplying washing water in a conventional drum washing machine.

도 2는 본 발명에 따른 실시예로 드럼 세탁기의 내부구조를 보인 단면도이다.2 is a cross-sectional view showing the internal structure of the drum washing machine in an embodiment according to the present invention.

도 3은 본 발명에 적용되는 드럼 세탁기에 대한 제어블록도이다.3 is a control block diagram of a drum washing machine applied to the present invention.

도 4는 본 발명에 따른 실시예로 드럼 세탁기의 급수 제어방법에 대한 제어흐름도이다.4 is a control flowchart of a water supply control method of the drum washing machine according to the embodiment of the present invention.

*도면의 주요 기능에 대한 부호의 설명** Description of the code for the main functions of the drawings

20 : 키입력부21 : 수위감지부20: key input unit 21: water level detection unit

30 : 제어부40 : 급수밸브구동부30: control unit 40: water supply valve drive unit

41 : 배수펌프구동부42 : 모터구동부41: drain pump driving unit 42: motor driving unit

43 : 표시부43: display unit

전술한 목적을 달성하기 위한 본 발명은 세탁기의 급수 제어방법에 있어서, 세탁수를 초기 급수한 후 세탁수의 현재수위를 검출하고, 상기 검출된 세탁수의 현재수위와 미리 설정된 재급수 수위를 비교하여 재급수가 필요한지를 판단하고, 상기 재급수가 필요한 경우, 일정량의 세탁수를 급수하는 것을 특징으로 한다.According to the present invention for achieving the above object, in the water supply control method of the washing machine, after initial washing of the washing water, the present water level of the washing water is detected, and the current level of the detected washing water is compared with the preset water supply level. It is determined whether the re-water supply is necessary, and if the re-water supply is necessary, it is characterized in that the water supply of a certain amount.

이하에서는 본 발명의 바람직한 실시예를 본 도면을 참조하여 상세하게 설명하도록 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 2는 본 발명에 따른 실시예로 드럼 세탁기의 내부구조를 보인 단면도이다.2 is a cross-sectional view showing the internal structure of the drum washing machine in an embodiment according to the present invention.

도 2에 도시된 바와 같이, 드럼세탁기에는 본체(1) 내부에 설치된 원통형상의 드럼(2)과 이 드럼(2)의 개구부에 결합되는 덮개(3)를 구비하고, 이 드럼(2)의 내부에는 다수의 세탁수 유출구멍이 천공된 회전조(4)가 회전가능하게 설치된다.As shown in FIG. 2, the drum washing machine includes a cylindrical drum 2 installed inside the main body 1, and a lid 3 coupled to the opening of the drum 2, and the inside of the drum 2. There is a rotatable tub 4 rotatably perforated with a plurality of washing water outlet holes.

그리고, 이 회전조(4)의 회전을 위하여 본체(1) 하부에 모터(5)가 설치되며, 드럼(2)의 하부에는 세탁수를 가열하기 위한 히터(미도시)가 설치된다.Then, the motor 5 is installed in the lower part of the main body 1 for the rotation of the rotating tank 4, a heater (not shown) for heating the wash water is provided in the lower portion of the drum (2).

또한, 회전조(4)의 후면에는 그 외측단이 드럼(2)의 외측까지 연장된 축에풀리(미도시)가 설치되고, 이 풀리와 모터(5)에는 벨트(미도시)가 설치되어 모터(5)의 구동력이 회전조(4)로 전달되도록 한다.In addition, a pulley (not shown) is installed on the rear side of the rotating tub 4, and an outer end thereof extends to the outside of the drum 2, and a belt (not shown) is installed on the pulley and the motor 5. The driving force of the motor 5 is transmitted to the rotating tank (4).

한편, 드럼(2)의 하부에는 세탁수를 배수하기 위한 배수호스(6)가 연결되어 있으며, 이 배수호스(6)에는 드럼(2)내의 세탁수를 펌핑하기 위한 배수펌프(7)가 본체(1)의 바닥에 설치된다.On the other hand, a drain hose 6 for draining the wash water is connected to the lower part of the drum 2, and the drain hose 6 has a drain pump 7 for pumping the wash water in the drum 2. It is installed at the bottom of (1).

그리고, 본체(1)의 상측에는 드럼(2) 내부의 세탁수의 양을 감지하기 위한 수위센서(미도시)가 설치되고, 드럼(2)의 상부에는 세제를 공급하기 위한 세제공급장치(8)가 설치된다.In addition, a water level sensor (not shown) for detecting the amount of washing water inside the drum 2 is installed above the main body 1, and a detergent supply device 8 for supplying detergent to the upper part of the drum 2. ) Is installed.

도 3은 본 발명에 적용되는 드럼 세탁기에 대한 제어블록도이다.3 is a control block diagram of a drum washing machine applied to the present invention.

도 3을 살펴보면, 세탁기의 전반적인 동작을 제어하는 제어부(30)의 입력측에는 사용자의 명령을 입력받기 위한 키입력부(20), 회전조(2)의 수위를 감지하는 수위감지부(21)가 전기적으로 연결되어 있다.Referring to Figure 3, the input side of the control unit 30 for controlling the overall operation of the washing machine is a key input unit 20 for receiving a user's command, the water level detection unit 21 for detecting the water level of the rotating tub 2 is electrical Is connected.

또한, 제어부(30)의 출력측에는 급수밸브(40a)를 개폐하는 급수밸브구동부(40)와, 배수펌프(7)를 작동시켜 회전조(4)내의 혼탁해진 세탁수를 외부로 배출시키는 배수펌프구동부(41), 회전조(4)를 교반 회전시키도록 정역 회전하는 모터(5)를 구동하는 모터구동부(42)와, 세탁기의 현재 동작상태 및 각종 정보를 표시하는 표시부(43)가 전기적으로 연결되어 있다.In addition, on the output side of the controller 30, a water supply valve driver 40 for opening and closing the water supply valve 40a and a drain pump 7 operate a drain pump for discharging the washed water in the rotary tank 4 to the outside. The drive part 41, the motor drive part 42 which drives the motor 5 which rotates forward and reverse to stir-rotate the rotating tank 4, and the display part 43 which displays the present operating state of the washing machine and various information are electrically connected. It is connected.

도 4는 본 발명에 따른 실시예로 드럼 세탁기의 급수 제어방법에 대한 제어흐름도이다.4 is a control flowchart of a water supply control method of the drum washing machine according to the embodiment of the present invention.

도 4를 살펴보면, 사용자가 세탁물과 세제를 세탁조에 넣고, 세탁물의 종류와 양과 같은 세탁정보를 키입력부(20)를 통해 입력하면, 먼저, 전체 세탁 과정을 제어하는 제어부(30)는 회전조(4) 내부에 세탁수를 초기 급수하기 위해 급수밸브구동부(40)를 통해 급수밸브(40a)를 연다(S100).Referring to FIG. 4, when a user puts laundry and detergent into a washing tank and inputs washing information such as the type and amount of laundry through the key input unit 20, first, the control unit 30 for controlling the entire washing process includes a rotating tank ( 4) Open the water supply valve 40a through the water supply valve driver 40 to initially supply the wash water (S100).

급수밸브(40a)가 열림에 따라 회전조(4)에 세탁수가 급수되면, 제어부(30)는 수위감지부(21)를 통해 세탁조 내부의 수위를 읽어 들인다(S101).When the wash water is supplied to the rotary tub 4 as the water supply valve 40a is opened, the controller 30 reads the water level inside the tub through the water level detector 21 (S101).

이어서, 제어부(30)는 회전조(4) 내의 수위가 세탁물의 종류와 양에 따라 미리 설정된 설정수위에 도달했는지를 알기 위해 읽어 들인 수위값과 설정수위에 상응하는 제 1설정값을 비교한다(S102).Subsequently, the controller 30 compares the read water level value with the first set value corresponding to the set water level in order to know whether the water level in the rotary tub 4 has reached a preset water level according to the type and quantity of the laundry ( S102).

비교결과 읽어 들인 수위값이 미리 설정된 제 1설정값인 경우, 제어부(30)는 초기 급수를 완료하기 위해 급수밸브구동부(40)를 통해 급수밸브(40a)를 닫는다(S103).When the water level value read as a result of the comparison is a preset first set value, the control unit 30 closes the water supply valve 40a through the water supply valve driver 40 to complete the initial water supply (S103).

초기급수가 완료되면, 제어부(30)는 모터구동부(42)를 통해 회전조(4)를 교반 회전시키는 모터(5)를 구동하여 세탁을 수행한다(S104). 이때, 회전조(4)의 교반회전에 따라 세탁물이 골고루 젖게 되고, 세탁물을 물을 흡수하는 재질인 경우나 세탁물의 양이 많은 경우에는 세탁물이 물을 많이 흡수하게 되어 회전조(4)내의 수위가 설정수위 이하로 상당히 낮아진다.When the initial water supply is completed, the controller 30 drives the motor 5 to stir-rotate the rotating tub 4 through the motor driving unit 42 to perform washing (S104). At this time, the laundry is wet evenly according to the stirring rotation of the rotary tub 4, and if the laundry absorbs water or the amount of the laundry is large, the laundry absorbs a lot of water and the water level in the rotary tub 4 Significantly lowers below the set level.

단계(S104)에서 세탁이 미리 설정된 시간동안 수행되면, 제어부(30)는 수위감지부(21)를 통해 회전조(4) 내의 현재 수위를 읽어 들인다(S105).When the washing is performed for a predetermined time in step S104, the control unit 30 reads the current water level in the rotating tank 4 through the water level detecting unit 21 (S105).

이어서, 제어부(30)는 재급수가 필요한지를 알기 위해 읽어 들인 현재 수위값과 제 1설정값보다 낮게 설정된 제 2설정값(재급수 기준수위값)을비교한다(S106).Subsequently, the control unit 30 compares the current water level value read in order to know whether the water supply is necessary and the second set value (the water supply reference water level value) set lower than the first setting value (S106).

비교결과 세탁물이 물을 흡수하여 읽어 들인 수위값이 제 2설정값보다 적은 경우, 제어부(30)는 세탁수를 재급수하기 위해 급수밸브구동부(40)를 통해 급수밸브(40a)를 연다(S107).As a result of the comparison, if the level value of the laundry absorbed and read by the water is less than the second set value, the controller 30 opens the water supply valve 40a through the water supply valve driver 40 to resupply the wash water (S107). ).

급수밸브(40a)가 열림에 따라 재급수가 이루어지면, 제어부(30)는 수위감지부(21)를 통해 회전조(2) 내의 현재 수위를 읽어 들인다(S108).When the water supply valve 40a is re-supplied as it is opened, the controller 30 reads the current water level in the rotating tank 2 through the water level sensing unit 21 (S108).

이어서, 제어부(30)는 읽어 들인 현재 수위로부터 일정량의 세탁수가 급수되었는지를 알기 위해 읽어 들인 현재 수위값과 현재 수위값에 대해 일정량의 세탁수가 증가되도록 미리 설정된 제 3설정값을 비교한다(S109). 이때, 제 3설정값은 세탁물의 종류와 양에 따라 설정되고, 제 2설정값보다 낮은 값이다.Subsequently, the controller 30 compares the read current level value and the third preset value so that a predetermined amount of the washing water is increased with respect to the current water level value in order to know whether a predetermined amount of washing water is supplied from the read current level (S109). . At this time, the third set value is set according to the type and amount of laundry, and is lower than the second set value.

비교결과 읽어 들인 현재 수위값이 제 3설정값인 경우, 제어부(30)는 재급수를 완료하기 위해 급수밸브구동부(40)를 통해 급수밸브(40a)를 닫는다(S110).When the current water level value read as a result of the comparison is the third set value, the controller 30 closes the water supply valve 40a through the water supply valve driver 40 to complete the rewatering operation (S110).

이상에서 상세히 설명한 바와 같이, 본 발명은 불필요한 세탁수의 낭비를 막는 효과가 있다.As described above in detail, the present invention has the effect of preventing the waste of unnecessary washing water.

Claims (4)

세탁기의 급수 제어방법에 있어서,In the water supply control method of the washing machine, 세탁수를 초기 급수한 후 세탁수의 현재수위를 검출하고,Initially water the wash water and detect the current level of the wash water, 상기 검출된 세탁수의 현재수위와 미리 설정된 재급수 수위를 비교하여 재급수가 필요한지를 판단하고,It is determined whether the water supply is necessary by comparing the current water level of the detected wash water with a preset water supply level. 상기 재급수가 필요한 경우, 일정량의 세탁수를 급수하는 것을 특징으로 하는 세탁기의 급수 제어방법.The water supply control method of the washing machine, characterized in that for supplying a predetermined amount of washing water, if the re-water supply. 제 1항에 있어서,The method of claim 1, 상기 세탁수의 현재수위 검출은, 일정량의 세탁수를 초기 급수한 후 회전조를 교반 회전시켜 세탁물을 물에 젖게 한 후에 이루어지는 것을 특징으로 하는 세탁기의 급수 제어방법.The present water level detection of the washing water is a water supply control method of the washing machine, characterized in that after the initial water supply of a certain amount of the washing water, the rotating tub is stirred and rotated to wet the laundry with water. 제 1항에 있어서,The method of claim 1, 상기 재급수 수위는 초기 급수 수위보다 낮게 설정되는 것을 특징으로 하는 세탁기의 급수 제어방법.The water supply control method of the washing machine, characterized in that the re-supply water level is set lower than the initial water supply level. 제 1항에 있어서,The method of claim 1, 상기 재급수시 급수되는 세탁수의 양은 상기 세탁물의 종류와 양에 따라 설정되는 것을 특징으로 하는 세탁기의 급수 제어방법.The amount of washing water supplied to the water resupply is set according to the type and amount of the laundry.
KR1020020044210A 2002-07-26 2002-07-26 Method of controlling supply water for a washing machine KR20040009851A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900016533A (en) * 1989-04-27 1990-11-13 김용원 Water Supply Control Method of Washing Machine
JPH0731786A (en) * 1993-07-23 1995-02-03 Matsushita Electric Ind Co Ltd Dehydrating and washing machine
JPH10328483A (en) * 1997-06-04 1998-12-15 Hitachi Ltd Full automatic washing machine
KR19990029444U (en) * 1997-12-29 1999-07-26 윤홍구 Foam control method and device for drum type washing machine
KR19990085003A (en) * 1998-05-13 1999-12-06 윤종용 Water Supply Control Method of Drum Washing Machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900016533A (en) * 1989-04-27 1990-11-13 김용원 Water Supply Control Method of Washing Machine
JPH0731786A (en) * 1993-07-23 1995-02-03 Matsushita Electric Ind Co Ltd Dehydrating and washing machine
JPH10328483A (en) * 1997-06-04 1998-12-15 Hitachi Ltd Full automatic washing machine
KR19990029444U (en) * 1997-12-29 1999-07-26 윤홍구 Foam control method and device for drum type washing machine
KR19990085003A (en) * 1998-05-13 1999-12-06 윤종용 Water Supply Control Method of Drum Washing Machine

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