KR900006110Y1 - Washing machine solenoide control circuit - Google Patents

Washing machine solenoide control circuit Download PDF

Info

Publication number
KR900006110Y1
KR900006110Y1 KR2019870017203U KR870017203U KR900006110Y1 KR 900006110 Y1 KR900006110 Y1 KR 900006110Y1 KR 2019870017203 U KR2019870017203 U KR 2019870017203U KR 870017203 U KR870017203 U KR 870017203U KR 900006110 Y1 KR900006110 Y1 KR 900006110Y1
Authority
KR
South Korea
Prior art keywords
solenoid
triac
washing machine
circuit
control circuit
Prior art date
Application number
KR2019870017203U
Other languages
Korean (ko)
Other versions
KR890008893U (en
Inventor
장형주
Original Assignee
삼성전자 주식회사
안시환
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전자 주식회사, 안시환 filed Critical 삼성전자 주식회사
Priority to KR2019870017203U priority Critical patent/KR900006110Y1/en
Publication of KR890008893U publication Critical patent/KR890008893U/en
Application granted granted Critical
Publication of KR900006110Y1 publication Critical patent/KR900006110Y1/en

Links

Classifications

    • 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
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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
    • D06F2105/62—Stopping or disabling machine operation
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Temperature (AREA)

Abstract

내용 없음.No content.

Description

세탁기의 솔레노이드 제어회로Solenoid Control Circuit of Washing Machine

제1도는 종래의 직류 솔레노이드의 회로도.1 is a circuit diagram of a conventional direct current solenoid.

제2도는 본 고안의 직류 솔레노이드의 단면도.2 is a cross-sectional view of the DC solenoid of the present invention.

제3도는 본 고안의 직류 솔레노이드의 회로도.3 is a circuit diagram of a direct current solenoid of the present invention.

제4도는 본 고안의 실시예에 따른 솔레노이드 제어회로도.4 is a solenoid control circuit diagram according to an embodiment of the present invention.

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

1 : 프란자 2 : 고무시트1: Franca 2: rubber sheet

3 : 베이스 4 : 버튼3: Base 4: Button

5 : 절환접점스위치 6 : 절연물질5: switching contact switch 6: insulating material

7 : 코일A 8 : 코일B7: Coil A 8: Coil B

9 : 액포시 10 : 써미스터9: Axiocy 10: Thermistor

본 고안은 세탁기의 배수밸브에 사용되는 솔레노이드에 관한 것으로, 특히 솔레노이드의 코일의 온도를 검출하고 솔레노이드의 구속시 전원을 차단하여 화재발생을 사전에 방지하는 세탁기의 솔레노이드 제어회로에 관한 것이다.The present invention relates to a solenoid used in a drain valve of a washing machine, and more particularly, to a solenoid control circuit of a washing machine that detects a temperature of a coil of a solenoid and shuts off a power supply when the solenoid is restrained to prevent a fire.

제1도는 종래의 직류솔레도이도의 회로도를 나타낸 것이다.1 is a circuit diagram of a conventional DC soledoido.

교류전원(AC)이 정류용 브리지 다이오드(D1)를 통해 코일A(7)에 인가되고, 절환접점스위치(5)가 오프되면 코일B(8)에도 전원(AC)이 인가되도록 구성하였다.The AC power source AC was applied to the coil A 7 through the rectifying bridge diode D 1 , and the power source AC was also applied to the coil B 8 when the switching contact switch 5 was turned off.

상기 구성된 직류솔레도이드 회로에 전원(AC)이 인가되면 정류용 브리지 다이오드(D1)를 통해 정류되어 솔레노이드의 흡입코일A(7)에 인가된다.When a power source AC is applied to the configured DC solenoid circuit, it is rectified through the rectifying bridge diode D 1 and applied to the suction coil A 7 of the solenoid.

절환스위치(5)는 전원이 인가되기 전에는 "온"상태에 있다가 코일A(7)에 전류가 흘러 제2도의 프란자(1)가 흡입되면서 베이스(3)가 버튼(4)을 치면 오프된다.The changeover switch 5 is in the "on" state before the power is applied, but when the base 3 hits the button 4 while the current flows through the coil A 7 and the francza 1 of FIG. do.

따라서, 전류가 코일A(7)및 코일B(8)에 흐르게 되어 흡입된 프란자(1)를 밀착유지시키고, 이때 세탁기 내부의 배수밸브가 열려 세탁조 내의 물을 배수시킨다.Therefore, a current flows through the coils A 7 and B 8 to keep the sucked Franza 1 in close contact, and the drain valve inside the washing machine opens to drain the water in the washing tank.

교류전원(AC)이 차단되면 프란자(1)가 밖으로 나오면서 스위치(5)가 온상태로 되므로 솔레노이드회로는 처음상태로 복귀된다. 그러나, 스위치(5)의 온, 오프시 발생되는 외부적인 요인(잡음, 서어지(Surge))등에 의해 브리지 다이오드(D1)가 단락되거나 솔레노이드가 구속되어 과부하에 의해 코일(7,8)의 온도가 상승한다.When the AC power source AC is cut off, the switch 5 is turned on while the franja 1 comes out, and the solenoid circuit returns to the initial state. However, the bridge diode D 1 is short-circuited due to external factors (such as noise and surge) generated when the switch 5 is turned on or off, or the solenoid is constrained to overload the coils 7 and 8. The temperature rises.

그러므로, 코일A, B(7, 8)의 절연용 물질(6)이 녹으면서 내부 회로가 특성을 잃어버리기 때문에 교류전원(AC)자체를 단락시키는 결과가 초래되어 화재가 발생할 우려가 있었다.Therefore, since the internal circuit loses its characteristics while the insulating material 6 of the coils A and B (7, 8) melts, there is a possibility that a short circuit occurs in the AC power source AC, and a fire may occur.

또한, 배수밸브에 이물질이 끼어 솔레노이드의 동작이 원할하지 못해 세탁기의 배수호스에 물이 남아 있으므로, 동절기에 기온이 극히 낮을때 배수밸브의 주변에서 결빙형상이 발생된다.In addition, since foreign matter is trapped in the drain valve and the solenoid is not desired to operate, water remains in the drain hose of the washing machine. Thus, freezing occurs around the drain valve when the temperature is extremely low in winter.

그러므로, 솔레노이드의 당김력이 커져 솔레노이드가 구속되므로 직류솔레노이드의 내부 코일간에 단락현상이 발생하는 문제점이 있었다.Therefore, since the pulling force of the solenoid is increased and the solenoid is constrained, there is a problem that a short circuit occurs between the internal coils of the DC solenoid.

본 고안은 상기한 문제점을 해결하기 위해 안출된 것으로서, 솔레노이드의 코일 주변에 써미스터를 부착하여 솔레노이드의 과열을 검출하고, 브리지다이오드의 양단에 바리스터, 라인 콘덴서 및 퓨우즈를 연결하여 솔레노이드의 구속 및 화재발생을 사전에 예방할 수 있는 세탁기의 솔레노이드 제어회로를 제공함에 그 목적이 있다.The present invention was devised to solve the above problems, by attaching a thermistor around the coil of the solenoid to detect overheating of the solenoid, and connecting the varistor, line condenser and fuse to both ends of the bridge diode to constrain and fire the solenoid. It is an object of the present invention to provide a solenoid control circuit of a washing machine that can prevent occurrence in advance.

이하에 첨부된 도면에 의거하여 본 고안의 실시예를 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제2도는 본 고안의 직류솔레노이드의 단면도로서, 코일A(7)및 코일B(8)을 절연물질(6)로 절연시킨 후 엑포시(9)로 감싸주고, 코일의 온도 상승시 절연물질(6)이 녹아 소자특성이 소멸되어 교류전원이 차단되는것을 방지하기위해 코일B(8)의 주변부에 온도 감지용 써미스터(10)를 부착한다.2 is a cross-sectional view of the DC solenoid of the present invention, the coil A (7) and the coil B (8) is insulated with an insulating material (6) and then wrapped with an expo (9), the insulating material ( 6) The temperature sensing thermistor 10 is attached to the periphery of the coil B (8) in order to prevent the AC power is cut off by melting the device characteristics.

평상시에는 절환접점 스위치(5)가 온상태로 있다가 프란자(1)가 동작하여 고무시트(2)로 싸인 베이스(3)를 동작시키면 베이스(3)가 버튼(4)을 쳐서 오프시키도록 구성하였다.Normally, when the switch contact switch 5 is in the on state and the franja 1 operates to operate the base 3 wrapped with the rubber sheet 2, the base 3 hits the button 4 to turn it off. Configured.

따라서, 절환접점스위치(5)가 오프된 상태에서 세탁기 내의 세탁물은 배수된다.Therefore, the laundry in the washing machine is drained while the switching contact switch 5 is turned off.

제3도는 본 고안의 직류솔레노이드 회로도이다.3 is a DC solenoid circuit diagram of the present invention.

교류전원(AC)의 양단에 바리스터(Z1)와 라인콘덴서(C1)를 연결하고, 교류전원(AC)의 일단에 저항(R1) 및 퓨즈(F1)를 각각 연결하며, 브리지 다이오드(D2)와 코일(7, 8)사이에 저항(R2)및 콘덴서(C2)를 연결 구성하였다.A varistor (Z 1 ) and a line capacitor (C 1 ) are connected to both ends of the AC power source (AC), and a resistor (R 1 ) and a fuse (F 1 ) are connected to one end of the AC power source (AC), respectively, and a bridge diode A resistor R 2 and a capacitor C 2 were connected between the (D 2 ) and the coils 7 and 8.

상기 바리스터(Z1)및 라인 콘덴서(C1)는 노이즈와 서어지전압에 의한 자체 화재위험을 방지하고, 교류전원(AC)에 저항(R1)및 퓨즈(F1)를 연결한 것은 솔레노이드자체의 소음과 과전류시 화재를 방지하기 위한것이다.The varistor (Z 1 ) and the line capacitor (C 1 ) to prevent the risk of self-fire due to noise and surge voltage, and connecting the resistor (R 1 ) and the fuse (F 1 ) to the AC power source (AC) is a solenoid It is to prevent fire in case of noise and over current.

또한, 저항(R2)및 콘텐서(C2)는 충격전압 흡수용이다.In addition, the resistor R 2 and the capacitor C 2 are for absorbing shock voltage.

제4도는 본 고안의 실시예에 따른 회로도로서, 마이크로 컴퓨터(41)의 단자(P1)에 인버어터(I1)를 통해 솔레노이드 구동부(42)의 저항(R3)을 연결하였다.4 is a circuit diagram according to an embodiment of the present invention, and the resistor R 3 of the solenoid driver 42 is connected to the terminal P 1 of the microcomputer 41 through the inverter I 1 .

상기 솔레노이드 구동부(42)는 저항(R3, R4)을 교류전원의 입력단자(a, b)가 접속된 트라이악(TR1)의 게이트단자(G)에 연결하고. 저항(R5)및 콘덴서(C3)를 트라이악(TR1)과 병렬로 연결하여 트라이악(TR1)의 온,오프에 따라 솔레노이드구동부(43)를 구동시키도록 구성하였다.The solenoid driver 42 connects the resistors R 3 and R 4 to the gate terminal G of the triac TR 1 to which the input terminals a and b of the AC power supply are connected. Resistance (R 5) and to connect the capacitor (C3) in parallel with the triac (TR 1) according to on and off of the triac (TR 1) was constructed to drive the solenoid driving unit 43.

솔레노이드의 내부 온도를 조절하는 솔레노이드 온도검출부(44)는 다음과 같이 구성되었다.The solenoid temperature detector 44 that adjusts the internal temperature of the solenoid was configured as follows.

연산증폭기(OP1) 의 비반전단자에 저항(R7, R8)에 의한 분압전압(Va)을 인가하고, 연산증폭기(OP1, OP2)의 반전단자와 비반전단자에 써미스터(10)의 감지저항(RTH)및 저항(R6)에 의한 분압전압(Vb)을 인가하며, 연산증폭기(OP2)의 반전 단자에는 저항(R9-R11)및 가변저항(VR1)에 의한 분압전압(VC)을 인가하였다. 또한 연산증폭기(OP1, OP2)의 출력을 쌍안정 플립플롭(45)을 구성하는 낸드게이트(G1, G2)의 한 입력에 각각 연결하고, 래치회로(45)의 출력(d)을 솔레노이드 구동부(42)의 트라이악(TR1)의 게이트단자(G)에 연결하여 트라이악(TR1)을 구동시키도록 구성하였다.Applying a divided voltage (V a) by the resistor (R 7, R 8) to the non-inverting terminal of the operational amplifier (OP 1), and the thermistor to the inverting terminal and the non-inverting terminal of the operational amplifier (OP 1, OP 2) ( The voltage dividing voltage (V b ) by the sensing resistor (R TH ) and resistor (R 6 ) of 10 ) is applied, and the resistors (R 9 -R 11 ) and the variable resistor (VR) are applied to the inverting terminals of the operational amplifier OP 2 . The divided voltage (V C ) by 1 ) was applied. In addition, the outputs of the operational amplifiers OP 1 and OP 2 are connected to one input of the NAND gates G 1 and G 2 constituting the bistable flip-flop 45, respectively, and the output d of the latch circuit 45 is provided. Is connected to the gate terminal G of the triac TR 1 of the solenoid driver 42 to drive the triac TR 1 .

따라서, 트라이악(TR1)의 구동에 의해 솔레노이드 회로부(43)에 인가되는 교류전원을 온, 오프시키므로써, 솔레노이드의 흡일 코일(7, 8)의 온도 상승시 교류전원을 차단하여 솔레노이드 회로부(43)의 과열을 방지할 수 있다.Accordingly, by turning on or off the AC power applied to the solenoid circuit portion 43 by driving the triac TR 1 , the AC power is cut off when the temperature of the absorbing coils 7 and 8 of the solenoid rises, so that the solenoid circuit portion ( 43) can be prevented from overheating.

상기 구성된 본 고안의 동작을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above are as follows.

교류전원과 직류전압(VCC)이 회로에 인가된 상태에서 마이크로컴퓨터(41)의 단자(P1)출력이 "H"레벨이 되면, 인버어터(I1)를 통해 트라이악(TR1)이 게이트단자(G)에 "L"레벨신호가 인가된다.When the AC power and DC voltage (V CC) terminal (P 1) the output is "H" level of the microcomputer 41 from the applied state to the circuit, the triac through the inverter (I 1) (TR 1) The "L" level signal is applied to this gate terminal G.

따라서, 트라이악(TR1)이 온이되고 솔레노이드 회로부(43)가 동작하게 된다.Thus, the triac TR 1 is turned on and the solenoid circuit portion 43 is operated.

한편, 솔레노이드 온도검출부(44)의 연산증폭기(OP1)의 비반전단자에 저항(R7, R8)에 의한 분압전압(Va)이 인가되고, 연산증폭기(OP1, OP2)의 반전단자 및 비반전단자에는 써미스터(10)의 감지저항(RTM)및 저항(R6)에 의한 분압전압(Vb)이 각각 인가되며, 연산증폭기(OP2)의 반전단자에는 가변저항(VR1)및 저항(R9-R11)에 의한 분압전압(VC)이 인가된다.On the other hand, the divided voltage V a by the resistors R 7 and R 8 is applied to the non-inverting terminal of the operational amplifier OP 1 of the solenoid temperature detector 44, and the operational amplifiers OP 1 and OP 2 are applied. an inverting terminal and a non-inverting terminal, is applied to the divided voltage (V b) by a sense resistor (R TM) and a resistor (R 6) of the thermistor 10, respectively, an inverting terminal of the operational amplifier (OP 2) includes a variable resistance ( VR 1 ) and the divided voltage V C by the resistors R 9 -R 11 are applied.

직류전압(VCC)이 인가될 때 솔레노이드 최고 설정온도(예를 들면 40℃)이상으로 써미스터(10)의 감지온도가 상승하여 분압전압이 Vb>Va>Vc가 되면, 연산증폭기(OP1)의 출력은 "L"레벨이 되고 연산증폭기(OP2)의 출력은 "H"레벨이 된다.When the DC voltage (V CC ) is applied, the sensing temperature of the thermistor 10 rises above the solenoid maximum set temperature (for example, 40 ° C) and the divided voltage reaches V b > V a > V c. The output of OP 1 is at the "L" level and the output of the operational amplifier OP 2 is at the "H" level.

래치회로(45)를 구성하는 낸드게이트(G1, G2)는 쌍안전 플립플롭을 구성하고 있으므로 출력(d, e)은 각각 "H", "L"레벨이 된다. 트라이악(TR1)의 게이트단자(G)를 트리거시키지 못해 솔레노이드 회로부(43)에 인가되는 교류 전원의 입력단(a, b)을 차단하므로 솔레노이드회로부(43)는 동작이 중지된다.Since the NAND gates G 1 and G 2 constituting the latch circuit 45 constitute a pair-safe flip-flop, the outputs d and e are at the "H" and "L" levels, respectively. Since the gate terminal G of the triac TR 1 is not triggered, the input terminals a and b of the AC power applied to the solenoid circuit portion 43 are blocked, so that the solenoid circuit portion 43 is stopped.

연산증폭기(OP1) 이 반전단자에 인가되는 입력전압(Vb)은×Vcc이다. 써미스터저항치(RTH)은 온도가 올라가면 작아지고, 온도가 내리가면 커진다.The input voltage V b to which the operational amplifier OP 1 is applied to the inverting terminal is X V cc . Thermistor resistance (R TH ) decreases as the temperature increases, and increases as the temperature decreases.

써미스터(10)의 감지온도가 낮아져 저항(RTH)이 증가하면 분압전압(Vb)이 작어져 Va>Vb>Vc로 된다.When the sensing temperature of the thermistor 10 decreases and the resistance R TH increases, the divided voltage V b decreases to become V a > V b > V c .

연산증폭기(OP1)의 출력은 "H"레벨이 되고, 연산증폭기(OP2)의 출력은 전상태의 "H"레벨을 유지하므로 래치회로(45)의 출력(d)은 "H"레벨이 된다.The output of the operational amplifier OP 1 is at the "H" level, and the output of the operational amplifier OP 2 is maintained at the "H" level of the entire state, so the output d of the latch circuit 45 is at the "H" level. Becomes

상기와 마찬가지로 트라이악(TR1)의 게이트단자(G)가 트리거되지 못하므로 교류전원(a, b)은 차단된다. 그러나, 코일(7, 8)의 온도를 감지하는 써미스터(10)주변의 온도가 점점 낮아져 솔레노이드 내부의 가변저항(VR1)에 의해 설정된 온도에 도달하면 즉, Vb<Vc가 되면, 연산증폭기(OP2)의 출력은 "L"레벨이 되고, 낸드게이트(G1)의 출력(d)은 "L"레벨이 된다. 트라이악(TR1)의 게이트(G)가 트리거되어 교류전원의 입력단(a, b)의 전압이 솔레노이드 회로부(43)에 인가되므로 솔레노이드 회로부(43)는 동작을 수행하게 된다.As described above, since the gate terminal G of the triac TR 1 is not triggered, the AC power sources a and b are blocked. However, when the temperature around the thermistor 10 that senses the temperature of the coils 7 and 8 decreases gradually to reach the temperature set by the variable resistor VR 1 inside the solenoid, that is, when V b <V c , The output of the amplifier OP 2 is at the "L" level, and the output d of the NAND gate G 1 is at the "L" level. Since the gate G of the triac TR 1 is triggered and the voltages of the input terminals a and b of the AC power are applied to the solenoid circuit unit 43, the solenoid circuit unit 43 performs an operation.

따라서, 솔레노이드의 과열시 온도검출부(44)의 동작에 따라 트라이악(TR1)을 오프시켜 전원을 차단시키프로써 화재의 위험을 방지할 수 있다.Therefore, when the solenoid is overheated, the triac TR 1 may be turned off according to the operation of the temperature detector 44 to cut off the power supply, thereby preventing the risk of fire.

본 고안의 솔레노이드 제어회로에 따르면, 세탁기의 접정절환 스위치의 온, 오프 동작에 의한 잡용이나, 서어지전압에 의한 정류용 브리지 다이오드의 단락 및 솔레노이드가 구속되어 과부하에 의한 코일온도상승에 따른 화재발생을 미연에 방지할 수 있어 제품의 신뢰도를 높일 수 있다.According to the solenoid control circuit of the present invention, the fire occurs due to the coil temperature increase due to overload due to the short-circuit and the solenoid of the bridge diode for rectification by the surge switch voltage on or off, or by the surge voltage. Can be prevented in advance, increasing the reliability of the product.

Claims (1)

마이크로 컴퓨터(41)의 출력단자(P1)를 인버어터(I1)를 통해 솔레노이드 구동부(42)의 저항(R3)에 연결하고, 솔레노이드 온도검출부(44) 의 래치회로(45) 의 출력(d)을 트라이악(TR1)의 게이트단자(G)에 연결하며, 솔레노이드구동부(42)의 트라이악(TR1) 을 솔레노이드회로부(43)의 브리지다이오드(D2)의 입력단에 연결하여 상기 온도검출부(44)의 출력(d)에 의해 트라이악(TR1)을 구동시키므로써 솔레노이드회로부(43)를 온, 오프시키는 것을 특징으로 하는 세탁기의 솔레노이드 제어회로.The output terminal P 1 of the microcomputer 41 is connected to the resistor R 3 of the solenoid driver 42 through the inverter I 1 , and the output of the latch circuit 45 of the solenoid temperature detector 44 is connected. and connecting the (d) to the gate terminal (G) of the tRIAC (TR 1), by connecting the triac (TR 1), a solenoid driving unit 42 to the input terminal of the bridge diode (D 2) of the solenoid circuit 43 Solenoid control circuit of the washing machine, characterized in that the solenoid circuit portion (43) is turned on and off by driving the triac (TR 1 ) by the output (d) of the temperature detector (44).
KR2019870017203U 1987-10-05 1987-10-05 Washing machine solenoide control circuit KR900006110Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870017203U KR900006110Y1 (en) 1987-10-05 1987-10-05 Washing machine solenoide control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870017203U KR900006110Y1 (en) 1987-10-05 1987-10-05 Washing machine solenoide control circuit

Publications (2)

Publication Number Publication Date
KR890008893U KR890008893U (en) 1989-05-29
KR900006110Y1 true KR900006110Y1 (en) 1990-07-06

Family

ID=19268512

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870017203U KR900006110Y1 (en) 1987-10-05 1987-10-05 Washing machine solenoide control circuit

Country Status (1)

Country Link
KR (1) KR900006110Y1 (en)

Also Published As

Publication number Publication date
KR890008893U (en) 1989-05-29

Similar Documents

Publication Publication Date Title
US6747428B1 (en) Device and method for controlling supply of current and static capacitance to compressor
EP0702455A2 (en) Overheat protection apparatus for self-turn-off device
KR900006110Y1 (en) Washing machine solenoide control circuit
JPH11149320A (en) Protection means for power circuit
CA2189685A1 (en) Control powered overload relay
KR100318365B1 (en) Overcurrent Protection Circuit of Motor Drive Circuit
KR900000722Y1 (en) Protecting apparatus for microwave range
KR900007091Y1 (en) Control circuit for pumping installation
JP3277091B2 (en) Overcurrent protection device
JPS643313B2 (en)
KR100273460B1 (en) Overflow current protection device of a linear compressor
KR940004706Y1 (en) Preventing circuit for ripple current of inventer
KR860000878B1 (en) Control circuit for a clothing drier
JPH09135156A (en) Electric load driving device
KR890005921Y1 (en) Arrangement for starting electric motor
KR970005080Y1 (en) Antenna control of automobiles
KR910002053Y1 (en) Over current protective circuit
JPS6339911Y2 (en)
JP3864497B2 (en) Control device with overcurrent protection circuit
KR0128224Y1 (en) Current limitter circuit of non- contact relay
KR920008889Y1 (en) Ground level detecting circuit for microwave oven
KR0121873Y1 (en) Smps protection circuit
KR880000771Y1 (en) Power circuit
KR910004797Y1 (en) Over voltage protecting circuit
KR910002554Y1 (en) Over load protective circuit

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee