KR950007060B1 - Foam-protection apparatus and washing method for drum type washer - Google Patents

Foam-protection apparatus and washing method for drum type washer Download PDF

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Publication number
KR950007060B1
KR950007060B1 KR1019920021711A KR920021711A KR950007060B1 KR 950007060 B1 KR950007060 B1 KR 950007060B1 KR 1019920021711 A KR1019920021711 A KR 1019920021711A KR 920021711 A KR920021711 A KR 920021711A KR 950007060 B1 KR950007060 B1 KR 950007060B1
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South Korea
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washing
foam
motor
water
amount
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KR1019920021711A
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Korean (ko)
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KR940011710A (en
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유봉석
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엘지전자주식회사
구자홍
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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
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/06Arrangements for preventing or destroying scum
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/08Control circuits or arrangements thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14Arrangements for detecting or measuring specific parameters
    • D06F34/22Condition of the washing liquid, e.g. turbidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/304Arrangements or adaptations of electric motors
    • 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 
    • D06F39/04Heating arrangements
    • 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
    • D06F39/083Liquid discharge or recirculation arrangements
    • 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
    • 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
    • D06F39/088Liquid supply arrangements
    • 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
    • D06F2103/16Washing liquid temperature
    • 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
    • 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
    • D06F2103/20Washing liquid condition, e.g. turbidity
    • D06F2103/22Content of detergent or additives
    • 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
    • D06F2103/28Air properties
    • D06F2103/34Humidity

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

Abstract

a bubble detector for detecting whether a bubble is generated in more than an established amount or not by means of the output signal from a bubble sensor; a temperature sensor and a humidity sensor for sensing the temperature and the water level of a washing water, respectively; a washing motor; a water-supply valve; an integrated element for an interface to drive a drain motor and a heater; a driving section comprising resistances and triacs; and a micom for performing a washing operation by controlling the drives of the washing motor, the water-supply valve, the drain motor and the heater and reducing the generated bubble amount.

Description

회전드럼식 세탁기의 거품발생 방지장치 및 세탁방법Anti-foaming device and washing method of rotating drum type washing machine

제1도는 일반적인 회전드럼식 세탁기의 구성을 보인 단면도.1 is a cross-sectional view showing the configuration of a general rotary drum type washing machine.

제2도는 본 발명의 거품발생 방지장치의 회로도.2 is a circuit diagram of the anti-foaming device of the present invention.

제3도는 본 발명의 거품발생 방지장치의 회로도.3 is a circuit diagram of the anti-foaming device of the present invention.

제4도는 본 발명의 거품발생 방지장치에 의하여 회전드럼식 세탁기에 거품센서가 설치된 상태로 보인 개략도.Figure 4 is a schematic view showing a state in which the foam sensor is installed in the rotating drum type washing machine by the anti-foaming device of the present invention.

제5도는 본 발명의 세탁방법을 보인 신호흐름도.5 is a signal flow diagram showing a washing method of the present invention.

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

2 : 터브 4 : 세탁모타2: tub 4: washing motor

8 : 급수밸브 11 : 배수모타8: water supply valve 11: drainage motor

12 : 거품센서 13 : 거품감지부12: bubble sensor 13: bubble detection unit

14 : 온도감지부 15 : 수위감지부14: temperature detection unit 15: water level detection unit

16 : 히터 17 : 구동부16: heater 17: drive unit

18 : 마이콤 121 : 케이스18: Micom 121: Case

122,123 : 감지봉 124 : 절연채122,123: sensing rod 124: insulation

125 : 가스켓125: gasket

본 발명은 회전드럼식 세탁기에서 세탁물의 세탁시 거품이 일정량 이상으로 발생되지 않도록 조절하면서 세탁하여 세탁물의 세탁효율을 향상시킴은 물론 세탁기가 손상되지 않도록 하는 회전드럼식 세탁기의 거품발생 방지장치 및 세탁방법에 관한 것이다.The present invention to improve the washing efficiency of the laundry by washing the laundry while adjusting the laundry does not occur more than a certain amount when washing the laundry in the rotary drum type washing machine to prevent foam generation and washing method of the rotating drum type washing machine It is about.

일반적으로 회전드럼식 세탁기는 제1도에 도시된 바와 같이 구성되어 있다. 여기서 부호 1은 본체이고, 부호 2는 본체(1)내에 지지대(2A)로 구성 설치된 터브이다. 터브(2)내에는 회전드럼(3)이 설치되고, 이 회전드럼(3)에는 회전축(3A)이 터브(2)의 외측으로 연장설치되어 폴리(3B)가 축설된다.In general, the rotating drum washing machine is configured as shown in FIG. Here, reference numeral 1 denotes a main body, and reference numeral 2 denotes a tub formed by the support 2A in the main body 1. A rotating drum 3 is provided in the tub 2, and a rotating shaft 3A extends outward of the tub 2 in the rotating drum 3 to form a poly 3B.

부호 4는 세탁모타이다. 세탁모타(4)의 회전축(4A)에는 풀리(4B)가 축설되고, 풀리(4B)는 풀리(3B)와 벨트(5)로 연결되어 세탁모타(4)가 구동됨에 따라 회전드럼(3)이 회전된다.4 is a washing motor. A pulley 4B is installed on the rotation shaft 4A of the washing motor 4, and the pulley 4B is connected to the pulley 3B and the belt 5 so that the washing motor 4 is driven, thereby rotating the drum 3. Is rotated.

그리고 본체(1)의 상부에는 세제통(6)이 설치됨과 아울러 급수라인(7) 및 급수벨브(8)가 설치되어 급수구(9)를 통해 세탁수 및 세제가 터브(2)내로 투입되고, 터브(2)의 하부에는 배수라인(10) 및 배수펌프(11)가 설치되어 있다.In addition, a detergent container 6 is installed on the upper part of the main body 1, and a water supply line 7 and a water supply valve 8 are installed to wash water and detergent into the tub 2 through the water supply port 9. A drain line 10 and a drain pump 11 are installed below the tub 2.

이러한 구성을 가지는 회전드럼식 세탁기는 급수구(9)를 통해 세제 및 세탁수가 회전드럼(3)내로 투입된 상태에서 세탁모타(4)의 구동에 따라 회전드럼(3)이 회전되면서 세탁물의 상승 및 하강에 따른 충격 및 굴신작용에 의해 세탁을 수행하는 것이다.The rotary drum type washing machine having such a configuration ascends and descends laundry as the rotary drum 3 rotates according to the driving of the washing motor 4 while detergent and washing water are introduced into the rotary drum 3 through the water inlet 9. Washing is performed by the impact and stretching action.

이와같은 세탁동작을 수행하는 과정에서 상승 및 하강에 의하여 많은 거품이 발생하게 되는데 종래에는 발생되는 거품을 제거하지 않고 계속 세탁동작을 수행하였다. 그러므로 거품이 많이 발생하여 터브(2)와 회전드럼(3)의 사이에 거품이 충진될 경우에 이 거품에 의한 압력에 의해 회전드럼(3)의 회전이 방해되어 세탁모타(4)에 과부하가 걸리게 되고, 세탁모타(4)의 구동부가 손상됨은 물론 거품이 급수구(9)를 통해 세제통(6)으로 유입되고, 본체(1)의 톱플레이트(1A)와 세제통(6)사이의 틈새로 흘러나와 세탁기의 주변을 더럽혔으며, 이러한 현상은 히터를 내장하여 세탁수를 가열하는 기능이 있는 회전드럼식 세탁기에서 더욱 심하게 발생되는 문제점이 있었다.In the process of performing such a washing operation, a lot of bubbles are generated by the rise and fall, but conventionally, the washing operation was continued without removing the generated bubbles. Therefore, when a lot of foam is generated and the foam is filled between the tub 2 and the rotating drum 3, the rotation of the rotating drum 3 is prevented by the pressure of the foam, and the washing motor 4 is overloaded. It is caught, the drive unit of the washing motor (4) is damaged, as well as foam flows into the detergent container (6) through the water inlet (9), the gap between the top plate (1A) and the detergent container (6) of the main body (1) Flowing and dirty the surroundings of the washing machine, this phenomenon has a problem that occurs more severely in a rotary drum type washing machine having a function to heat the wash water by the built-in heater.

본 발명은 상기와 같은 종래의 제반 문제점들을 해결하기 위하여 창안한 것으로서, 거품센서를 설치하여 거품의 발생을 감지하고, 최초로 거품이 일정량 이상으로 발생되었음이 감지될 경우에 세탁모타를 약하게 구동시켜 거품의 발생을 줄이고 설정된 시간이 경과되어도 계속 일정량 이상으로 거품이 발생될 경우에는 세탁수의 일부를 배수 및 보충급수를 2회 반복 수행하여 거품의 발생을 줄이며, 세탁수의 일부를 배수 및 보충 급수하여도 계속 거품이 발생될 경우에는 히터를 오프시키고 세탁모타를 정지시켜 거품의 감소되도록 한 후 다시 세탁동작을 수행함으로써 거품의 발생으로 인한 세탁모타 및 구동부의 손상을 방지하고, 세탁물의 세탁효율을 향상시킬 수 있도록 하는 회전드럼식 세탁기의 거품발생 방지장치 및 세탁방법을 제공하는데 그 목적이 있는 것으로 이를 첨부된 도면을 참조하여 상세히 설명하겠으며, 여기서 종래와 동일한 부위에는 동일부호를 부여하였다.The present invention has been made to solve the above-mentioned conventional problems, install a foam sensor to detect the generation of bubbles, when the first detected that the foam is generated more than a certain amount by weakly driving the washing motor foam To reduce the occurrence of bubbles and continue to produce bubbles over a certain amount of time even after the set time has elapsed, reduce the occurrence of bubbles by draining part of the wash water and refilling water twice, and draining and replenishing part of the wash water. If foam continues to be generated, turn off the heater and stop the washing motor to reduce the foam, and then perform the washing operation again to prevent damage to the washing motor and the driving unit caused by the generation of foam, and improve the washing efficiency of the laundry. It provides a foam preventing device and a washing method of the rotating drum type washing machine to enable It will be described in detail with reference to the accompanying drawings as the purpose, where the same parts as in the prior art.

제2도는 본 발명의 거품발생 방지장치의 블록도이고, 제3도는 상세도로서 이에 도시된 바와같이, 거품센서(12)의 출력신호로 설정량 이상의 거품이 발생되는지를 감지하는 다이오드(D1,D2), 저항(R1,R2) 및 콘덴서(C1)로 된 거품감지부(13)와, 세탁수의 온도 및 수위를 각기 감지하는 온도감지부(14) 및 습도감지부(15)와, 세탁모타(14), 급수밸브(8), 배수모타(11) 및 히터(16)를 구동시키는 인터페이스용 집적소자(17A), 저항(R3-R12) 및 트라이악(TR11-TR15)으로 된 구동부(17)와, 상기 구동부(17)를 통해 상기 세탁모타(4), 급수밸브(8), 배수모타(11) 및 히터(16)의 구동을 제어하면서 세탁물의 세탁동작을 수행함과 아울러 거품감지부(13)의 감지신호로 거품의 발생량을 판별하여 거품의 발생량을 감소시키면서 세탁동작을 수행하는 마이콤(18)과, 교류전원(AC)을 정류 및 정전압으로 변환하여 동작전원(B+)을 공급하는 전원트랜스(T), 브리지 다이오드(BD), 콘덴서(C12,C13) 및 정전압용 집적소자(19A)로 된 전원부(19)로 구성하였다.FIG. 2 is a block diagram of the antifoaming device of the present invention, and FIG. 3 is a detailed view of the diode D1, which detects whether bubbles exceeding a predetermined amount are generated by the output signal of the bubble sensor 12, as shown in FIG. D2), foam detection unit 13 made of resistors R1, R2 and condenser C1, temperature sensing unit 14 and humidity sensing unit 15 for respectively sensing the temperature and level of the washing water, and washing A drive unit consisting of an interface integrated element 17A for driving the motor 14, the water supply valve 8, the drain motor 11, and the heater 16, resistors R3-R12, and triacs TR11-TR15 ( 17) and washing the laundry while controlling the driving of the washing motor (4), the water supply valve (8), the draining motor (11) and the heater (16) through the drive unit 17 and the foam detection unit The detection signal of (13) determines the amount of foaming and reduces the amount of foaming, while the microcomputer 18 performs washing operation and the AC power is rectified and constant voltage. The power supply unit 19 is composed of a power supply transformer T, a bridge diode BD, a capacitor C12, C13, and a constant voltage integrated device 19A.

여기서 거품센서(12)는 제4도에 도시된 바와같이 케이스(21)내에 두개의 감지봉(122,123)을 설치하고, 절연재(124)를 충진시켜 구성한 것으로 터브(2)의 상부에 가스켓(125)를 이용 및 고정하여 거품의 발생시 발생된 거품에 의해 감지봉(122,123)이 상호간에 접속되게 한다. 이와같이 구성된 본 발명의 거품발생 방지장치는 교류전원(AC)이 인가되면, 인가된 교류전원(AC)은 전원부(19)의 전원트랜스(T)를 통해 강압되고, 브리지 다이오드(BD)에서 브리지 정류되며, 콘덴서(C12)에 의해 평활된후 정전압용 집적소자(19A)에서 정전압으로 변환되어 회로 각부에 동작전원(B+)으로 공급된다.In this case, the foam sensor 12 is formed by installing two sensing rods 122 and 123 in the case 21 and filling the insulating material 124 as shown in FIG. 4 and the gasket 125 at the top of the tub 2. ) And the sensing rods 122 and 123 are connected to each other by bubbles generated when bubbles are generated. In the bubble generating apparatus of the present invention configured as described above, when AC power source AC is applied, the applied AC power source AC is stepped down through the power supply transformer T of the power supply unit 19 and bridge rectification is performed at the bridge diode BD. After being smoothed by the capacitor C12, the constant voltage integrated element 19A is converted into a constant voltage and supplied to the operation power supply B + in each circuit portion.

이와같은 상태에서 세탁물을 세탁할 경우에 온도감지부(14) 및 수위감지부(15)는 각기 세탁수의 온도 및 수위를 감지하여 마이콤(18)에 입력시키고, 마이콤(18)이 출력단자(P1+P5)로 구동신호를 출력함에 따라 구동부(17)는 세탁모타(4), 급수밸브(8), 배수모타(11) 및 히터(16)에 선택적으로 교류전원(AC)을 인가하여 구동시키게 된다.When washing laundry in such a state, the temperature detector 14 and the water level detector 15 detect the temperature and the water level of the washing water, respectively, and input the same to the microcomputer 18, and the microcomputer 18 outputs the output terminal ( As the driving signal is output to P1 + P5, the driving unit 17 selectively drives AC power to the washing motor 4, the water supply valve 8, the draining motor 11, and the heater 16. Let's go.

즉, 마이콤(18)이 출력단자(P1)로 정방향 구동신호를 출력할 경우에 그 출력한 정방향 구동신호를 인터페이스용 집적소자(17A)를 통해 트라이악(TRI)의 트리거 단자에 트리거 신호를 인가되므로 트라이악(TRI1)이 도통상태로 되고, 교류전원(AC)이 트라이악(TRI1)을 통해 세탁모타(4)에 인가되어 세탁모타(4)가 정방향으로 구동되며, 출력단자(P2)로 역방향 구동신호를 출력할 경우에는 트라이악(TRI2)이 트리거되면서 도통상태로 되어 세탁모타(4)가 역방향으로 구동되며, 출력단자(P3+P5)로 급수밸브 구동신호, 배수모타 구동신호 및 히터구동신호를 출력함에 따라 트라이악(TRI1+TRI5)이 트리거 되면서 도통상태로 되어 급수밸브(8), 배수펌프(11) 및 히터(16)가 구동된다.That is, when the microcomputer 18 outputs the forward driving signal to the output terminal P1, the trigger signal is applied to the trigger terminal of the triac TRI through the interface integrated device 17A. Therefore, the triac TRI1 is brought into a conductive state, and the AC power source AC is applied to the washing motor 4 through the triac TRI1 so that the washing motor 4 is driven in the forward direction, and to the output terminal P2. In the case of outputting the reverse drive signal, the triac TRI2 is triggered to be in the conduction state, and the washing motor 4 is driven in the reverse direction. The feed terminal drive signal, the drain motor drive signal, and the heater are driven by the output terminals P3 + P5. As the driving signal is output, the triac TRI1 + TRI5 is triggered to be in a conductive state, thereby driving the water supply valve 8, the drain pump 11, and the heater 16.

이와같이 마이콤(18)이 출력하는 구동신호에 따라 구동부(17)가 세탁모타(4), 급수밸브(8), 배수모타(11) 및 히터(16)로 구동시키면서 세탁물을 세탁하는 상태에서 거품센서(12)의 설치위치 이상으로 거품이 발생하면, 거품에 의해 거품센서(12)의 두 감지봉(122,123)이 접속상태로 되므로 동작전원(B-)이 거품센서(12)를 통하고, 거품감지부(13)의 저항(R1,R2)에 의해 저항(R1,R2)에 의해 분할되어 마이콤(18)의 입력단자(IN)로 고전위가 입력된다.In this manner, the driving unit 17 drives the washing motor 4, the water supply valve 8, the draining motor 11, and the heater 16 according to the driving signal output from the microcomputer 18 while washing the laundry. If bubbles are generated above the installation position of (12), the two sensing rods 122 and 123 of the foam sensor 12 are connected by the foam, so that the operating power B- is passed through the foam sensor 12, The high potential is input to the input terminal IN of the microcomputer 18 divided by the resistors R1 and R2 by the resistors R1 and R2 of the sensing unit 13.

그러면 마이콤(18)은 입력단자(IN)의 고전위로 거품이 설정량 이상으로 발생되었음을 판단하고, 구동부(17)를 통해 세탁모타(4), 급수밸브(8), 배수펌프(11) 및 히터(16)의 구동을 제어하면서 거품의 발생을 감소시켜 세탁물을 세탁하게 된다.Then, the microcomputer 18 determines that the foam is generated more than the set amount due to the high potential of the input terminal IN, the washing motor 4, the water supply valve 8, the drain pump 11 and the heater through the drive unit 17. While controlling the driving of (16), the generation of foam is reduced to wash the laundry.

한편 제5도는 본 발명의 거품발생 방지 세탁방법을 보인 신호 흐름도이다. 이에 도시된 바와같이, 세탁물의 세탁동작을 수행할 경우에 먼저 거품발생의 감소세탁시 거품감소의 효과가 나타날 수 있을 정도의 충분한 시간(T1)을 메모리(RA1)에 저장하여 두고, 수위감지부(15)의 감지신호에 따라 급수밸브(8)을 제어하면서 급수 및 급수장치를 하여 세탁수가 설정된 수위로 되게 한후 거품감지부(13)가 거품을 감지하는지 판별한다.5 is a signal flowchart showing the anti-foam washing method of the present invention. As shown in the figure, when performing the washing operation of the laundry, first, a sufficient time (T1) is stored in the memory (RA1) enough to have the effect of reducing the foam when washing the foaming decreases, the water level detection unit In accordance with the detection signal of (15) to control the water supply valve (8) while the water supply and the water supply device to the wash water to the set water level and determines whether the foam detection unit 13 detects the foam.

이때 거품감지부(13)가 거품을 감지하지 못하였을 경우에는 거품이 설정량 이하인 것으로 판단하고, 세탁모타(4)를 정상리듬으로 구동시키면서 세탁동작을 수행하고, 온도감지부(14)의 감지신호에 따라 히터(16)를 온 및 오프시키면서 세탁수가 설정온도로 되게 조절하며, 세탁동작의 원료를 판별하여 완료할때까지 상기의 동작을 반복 수행한다.At this time, if the bubble detection unit 13 does not detect the bubble, it is determined that the bubble is less than the set amount, and performs the washing operation while driving the washing motor 4 in a normal rhythm, the detection of the temperature detection unit 14 While the heater 16 is turned on and off according to the signal, the washing water is adjusted to the set temperature, and the above operation is repeated until the raw material of the washing operation is determined and completed.

이와같이 세탁동작을 수행하는 상태에서 거품감지부(13)가 거품을 감지하면, 마이콤(18)은 거품이 설정량 이상으로 발생되었음을 판단하고, 거품이 설정량 이상으로 발생된 경과시간을 메모리(RA2)에 저장하면서 세탁모타(4)를 약리듬으로 구동시켜 거품이 적게 발생되도록 하며, 메모리(RA1,RA2)의 값을 비교 즉, 거품이 설정량 이상으로 발생된 경과시간이 메모리(RA1)에 저장된 설정시간(T1)보다 작을 경우에는 세탁동작의 완료시까지 상기의 동작을 계속 반복 수행하여 거품이 설정량이하로 감소될 경우에 다시 세탁모타(4)를 정상리듬으로 구동시키면서 세탁동작을 수행한다.When the foam detecting unit 13 detects the foam in the state of performing the washing operation as described above, the microcomputer 18 determines that the foam is generated more than the set amount, and records the elapsed time when the foam is generated more than the set amount. Drive the washing motor (4) in a rhythm to save less bubbles, and compare the values of the memory (RA1, RA2), that is, the elapsed time that the bubble generated more than the set amount in the memory (RA1) When the stored time is smaller than the set time T1, the above operation is repeatedly performed until the washing operation is completed, and when the foam is reduced below the set amount, the washing motor 4 is driven again with the normal rhythm to perform the washing operation.

그리고 상기에서 세탁모타(4)를 약리듬으로 구동시켜도 설정된 시간(T1) 이상 계속 거품이 설정량 이상 발생되어 RA2-RA1≥0이 되면, 마이콤(18)은 세탁수의 세제농도가 높은 것으로 판단하고, 메모리(RA2)를 2회 리세트시켰는지를 판별하며, 배수모타(11)를 구동시키면서 세탁수의 일부를 배수하고, 급수밸브(8)를 구동시켜 배수된 세탁수의 양만큼 보충급수한 후 메모리(RA2)를 리세트시킨다.In addition, when the washing motor 4 is driven in a weak rhythm, bubbles continue to be generated for more than a predetermined amount of time (T1) or more, and when RA2-RA1≥0, the microcomputer 18 determines that the detergent concentration of the washing water is high. It is determined whether the memory RA2 has been reset twice, draining part of the washing water while driving the drain motor 11, and driving the water supply valve 8 to replenish water as much as the amount of washing water drained. After that, the memory RA2 is reset.

여기서, 세탁수의 일부를 배수하고, 배수된 양만큼 보충급수함에 따라 세탁수의 세제농도가 낮아져 거품의 발생량이 감소된다.Here, as a part of the wash water is drained and the water is supplemented by the drained amount, the detergent concentration of the wash water is lowered, and the amount of foaming is reduced.

이와같은 상태에서 세탁수의 일부를 배수 및 보충급수를 하여도 거품이 계속 발생하여 RA2-RA1≥0으로 되면, 다시 세탁수의 일부를 배수 및 보충급수를 한후 메모리(RA2)를 리세트시키고, 세탁수의 일부를 배수 및 보충급수를 하고 메모리(RA2)를 리세트시키는 동작을 2회 반복하여도 계속 거품이 설정량 이상으로 발생되어 RA2-RA1≥0으로 되면, 마이콤(18)은 히터(16)를 오프시키고, 세탁모타(16)를 정지 및 세탁동작을 중단하여 거품이 발생되지 않도록 한 후 거품이 자연 감소되어 설정량 이하로 되면, 세탁모타(4)를 다시 정상리듬으로 구동시키면서 세탁동작을 재개한다.In this state, even if some of the wash water is drained and refilled, bubbles continue to occur, and when RA2-RA1≥0, the water (RA2) is reset after draining and replenishing a part of the wash water again. Even if a part of the wash water is drained and replenished and the memory RA2 is reset twice, bubbles continue to be generated over a set amount and RA2-RA1≥0. 16) is turned off, the washing motor 16 is stopped and the washing operation is stopped to prevent bubbles from being generated, and when the bubbles are naturally reduced to be lower than the set amount, the washing motor 4 is driven again to the normal rhythm. Resume operation.

이상에서 설명한 바와같이 본 발명은 세탁물의 세탁시 설정량 이상으로 거품이 발생되지 않도록 하면서 세탁동작을 수행하므로 거품의 과다발생으로 인한 구동부 및 세탁모타의 손상이 방지되고 세탁효율이 향상됨은 물론 세탁기에서 거품이 흘러나오는 것을 방지할 수 있다.As described above, since the present invention performs the washing operation while preventing the foam from generating more than the set amount when washing the laundry, the damage of the driving unit and the washing motor due to the excessive generation of foam is prevented and the washing efficiency is improved, as well as in the washing machine. Bubbles can be prevented from flowing out.

Claims (4)

거품센서(12)의 출력신호로 설정량 이상의 거품이 발생되는지를 감지하는 거품감지부(13)와, 세탁수의 온도 및 수위를 각기 감지하는 온도감지부(14) 및 습도감지부(15)와, 세탁모타(14), 급수밸브(8), 배수모타(11) 및 히터(16)를 구동시키는 인터페이스용 집적소자(17A), 저항(R3-R12) 및 트라이악(TR11-TR15)으로 된 구동부(17)와, 상기 구동부(17)를 통해 상기 세탁모타(4), 급수밸브(8), 배수모타(11) 및 히터(16)의 구동을 제어하면서 세탁물의 세탁동작을 수행함과 아울러 거품감지부(13)의 감지신호로 거품의 발생량을 판별하여 거품의 발생량을 감소시키면서 세탁동작을 수행하는 마이콤(18)으로 구성함을 특징으로 하는 회전드럼식 세탁기의 거품발생 방지장치.Bubble detection unit 13 for detecting whether more than a predetermined amount of foam is generated by the output signal of the foam sensor 12, and temperature detection unit 14 and humidity detection unit for detecting the temperature and water level of the washing water, respectively And an interface integrated element 17A for driving the washing motor 14, the water supply valve 8, the draining motor 11, and the heater 16, the resistors R3-R12 and the triac TR11-TR15. The washing unit 17 performs the washing operation of the laundry while controlling the driving of the washing motor 4, the water supply valve 8, the draining motor 11, and the heater 16 through the driving unit 17 and the driving unit 17. Bubble detection unit of the rotating drum type washing machine, characterized in that consisting of a microcomputer (18) to perform the washing operation while reducing the amount of foam by determining the amount of foam generated by the detection signal of the foam detection unit (13). 제1항에 있어서, 거품센서(12)는, 케이스(121)내에 두개의 감지봉(122,123)을 설치하여 감지봉(122,123)의 단부만 노출되게 절연재(124)를 충진시키고, 이를 가스켓(125)과 함께 터브(2)의 상부에 고정하여 설정량 이상의 거품발생시 거품에 의해 감지봉(122,123)이 상호간에 접속되게 함을 특징으로 하는 회전드럼식 세탁기의 거품발생 방지장치.The method of claim 1, the foam sensor 12, by installing the two sensing rods (122, 123) in the case 121 to fill the insulating material 124 to expose only the ends of the sensing rods (122, 123), gasket 125 ) And the bubble generating device of the rotating drum type washing machine, characterized in that the sensing rods 122 and 123 are connected to each other by bubbles when the amount of bubbles is generated by setting the upper portion of the tub 2 together with bubbles. 거품발생의 감소세탁시 거품감소의 효과가 나타날 시간(T1)을 메모리(TA1)에 저장하는 제1과정과, 설정수위로 세탁수를 급수하는 제2과정과, 설정량 이상의 거품이 발생되는지 판단하는 제3과정과, 상기 제3과정에서 거품이 설정량 이하일 경우에 세탁모타를 정상리듬으로 구동시키고 히터를 제어하여 세탁수가 설정온도로 되게한 후 세탁완료시까지 상기 제2과정부터 반복하는 제4과정과, 상기 제3과정에서 거품이 설정량 이상일 경우에 거품발생의 감소세탁을 수행하는 제5과정으로 제어됨을 특징으로 하는 세탁기의 거품발생 방지 세탁방법.Reduction of foaming The first process of storing the time T1 at which the effect of foam reduction on the washing occurs in the memory TA1, the second process of supplying the washing water to the set water level, and the determination of whether the foam above the set amount is generated And a fourth step of repeating the process from the second process until the washing is completed after driving the washing motor to the normal rhythm and controlling the heater when the foam is less than the set amount in the third process. And a fifth process of performing washing to reduce foaming when the foam is more than a predetermined amount in the third process. 제3항에 있어서, 제5과정의 거품발생의 감소세탁은, 거품이 설정량 이상으로 발생된 경과시간을 메모리(RA2)에 저장하고 세탁모타를 약리듬으로 구동시키면서 거품감소의 효과가 나타날 수 있을 정도의 충분한 시간이 저장된 메모리(RA1)값과 상기 메모리(RA2)값을 비교 판단하는 제1단계와, 제1단계에서 RA2-RA1≥0일 경우에 세탁수의 일부를 배수 및 보충 급수하여 세제 농도를 줄이고 메모리(RA2)를 리세트시킨 후 거품이 설정량 이상으로 발생된 경과시간을 다시 메모리(RA2)에 저장하는 제2단계와, 상기 제2과정의 수행후에도 계속 RA2-RA1≥0일 경우에 제2과정을 설정된 회수만큼 반복하여 세제농도를 줄이는 회수만큼 반복하여도 RA2-RA1≥0일 경우에 모든 세제동작을 중단하여 거품이 감소되도록한 후 다시 세탁동작을 수행하는 제4단계로 제어됨을 특징으로 하는 회전드럼식 세탁기의 거품발생 방지 세탁방법.According to claim 3, Reducing washing of foaming in the fifth process, the effect of the foaming can be exhibited by storing the elapsed time of the foam generated more than the set amount in the memory (RA2) and driving the washing motor in a rhythm The first step of comparing and determining the memory (RA1) value and the value of the memory (RA2) stored enough time, and when RA2-RA1≥0 in the first step by draining and replenishing part of the wash water Reducing the detergent concentration and resetting the memory (RA2) and storing the elapsed time in which the foam is greater than the set amount in the memory (RA2) again, and continues after the second process RA2-RA1≥0 In this case, even if the second process is repeated as many times as the set number of times to reduce the detergent concentration, if the step RA2-RA1≥0, all the detergent operations are stopped to reduce the foam and then perform the washing operation again. Controlled by A rotating drum-type anti-foaming washing method of a washing machine.
KR1019920021711A 1992-11-19 1992-11-19 Foam-protection apparatus and washing method for drum type washer KR950007060B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102400292A (en) * 2010-09-09 2012-04-04 株式会社东芝 Washing machine
CN102896446A (en) * 2012-10-09 2013-01-30 上海交通大学 Precise cutting control system for offshore oil platform
KR101236973B1 (en) * 2005-11-08 2013-02-22 삼성전자주식회사 Washing Machine and Bubble Exclusion Controlling Operation Of Washing Machine
CN110607641A (en) * 2019-09-18 2019-12-24 珠海格力电器股份有限公司 Control method of washing machine, computer readable storage medium and washing machine

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Publication number Priority date Publication date Assignee Title
KR100606685B1 (en) * 1999-08-30 2006-08-01 엘지전자 주식회사 Washing machine
KR100379412B1 (en) * 2000-03-02 2003-04-10 엘지전자 주식회사 Method for controlling dehydration by detecting a bubble in a washer
KR100775831B1 (en) * 2005-06-08 2007-11-13 엘지전자 주식회사 Foam sensor of drum washing machine and drum washing machine comprising the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101236973B1 (en) * 2005-11-08 2013-02-22 삼성전자주식회사 Washing Machine and Bubble Exclusion Controlling Operation Of Washing Machine
CN102400292A (en) * 2010-09-09 2012-04-04 株式会社东芝 Washing machine
CN102896446A (en) * 2012-10-09 2013-01-30 上海交通大学 Precise cutting control system for offshore oil platform
CN110607641A (en) * 2019-09-18 2019-12-24 珠海格力电器股份有限公司 Control method of washing machine, computer readable storage medium and washing machine

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