KR940009422A - Earth leakage breaker for electric washing machine - Google Patents

Earth leakage breaker for electric washing machine Download PDF

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Publication number
KR940009422A
KR940009422A KR1019920019956A KR920019956A KR940009422A KR 940009422 A KR940009422 A KR 940009422A KR 1019920019956 A KR1019920019956 A KR 1019920019956A KR 920019956 A KR920019956 A KR 920019956A KR 940009422 A KR940009422 A KR 940009422A
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KR
South Korea
Prior art keywords
washing machine
output
receiving
circuit
electric
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KR1019920019956A
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Korean (ko)
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KR0161017B1 (en
Inventor
장봉안
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윤종용
삼성전자 주식회사
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Priority to KR1019920019956A priority Critical patent/KR0161017B1/en
Publication of KR940009422A publication Critical patent/KR940009422A/en
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Publication of KR0161017B1 publication Critical patent/KR0161017B1/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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/10—Power supply arrangements, e.g. stand-by circuits
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/10—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess voltage, e.g. for lightning protection

Abstract

본 발명은 전기세탁기에 누전차당장치를 장착해서 누설전류가 발생되면, 이를 감지하여 입력전원을 차단하는 전기세탁기용 누전차단장치에 관한 것으로써, 교류전원을 입력받아 브리지 정류회로에서 전파정류하여 정류수단과, 상기 정류수단으로부터 출력되는 직류전압을 일정한 레벨의 안정전압으로 출력하는 정전압수단과, 세탁기의 누전발생시에 누전을 감지하는 누전감지수단과, 상기 누전감지수단에서 감지한 신호를 일정한 레벨로 증폭시키는 증폭수단과, 상기 증폭수단에서 증폭된 출력신호를 받아 전체기능을 제어하는 마이크로컴퓨터와, 상기 증폭수 단의 출력신호를 받음과 동시에 상기 마이크로컴퓨터로부터 출력되는 제어신호를 받아서 전원스위치의 차단제어 신호를 출력하는 구동수단과, 상기 구동수단으로부터 출력되는 차단에어신호를 받아서 입력 전원선의 한선을 차단하고, 사용자에 의해 전원선의 다른 한선을 단락시키게 되어 있는 전원차단수단과, 누전발생시에 상기 마이크로컴퓨터로부터 출력되는 제어신호를 받아서 누전을 표시하는 디스플레이수단으로 이루어진 것을 특징으로 하는 전기세탁기용 누전차단장치.The present invention relates to an electric washer circuit breaker for electric washing machine which detects the electric leakage breaker by mounting an electric leakage charging device in an electric washing machine and cuts off the input power. Means, constant voltage means for outputting the DC voltage output from the rectifying means at a constant level, an electric leak detecting means for detecting an electric leak when an electric leak occurs in the washing machine, and a signal detected by the electric leak detecting means at a constant level. Amplification means for amplifying, a microcomputer controlling the entire function by receiving the output signal amplified by the amplification means, and receiving a control signal output from the microcomputer at the same time as receiving the output signal of the amplification means, shut off the power switch. Driving means for outputting a control signal, and a blocking air output from the driving means; A power cut-off means for interrupting one line of the input power line by receiving a call, and shorting the other line of the power line by a user, and a display means for receiving a control signal output from the microcomputer and displaying a short-circuit when a short circuit occurs. A ground fault interrupter for an electric washing machine, characterized in that.

Description

전기세탁기용 누전차단장치Earth leakage breaker for electric washing machine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 일실시예에 따른 전기세탁기용 누전차단장치의 개략적인 블록도,1 is a schematic block diagram of a ground fault interrupting device for an electric washing machine according to an embodiment of the present invention;

제2도는 본 발명의 일시시예에 있어서 전기세탁기용 누전차단장치의 상세한 회로도.FIG. 2 is a detailed circuit diagram of an earth leakage breaker for an electric washing machine in a temporary embodiment of the present invention. FIG.

Claims (8)

교류전원을 입력받아 브리지 정류회로에서 전파정류하는 정류 수단과, 상기 정류수단으로부터 출력되는 직류전압을 일정한 렙젤의 안정전압으로 출력하는 정전압수단과, 세탁기의 누전발생시에 누전을 감지하는 누전감지수단과, 상기 누전감지수단에서 감지한 신호를 일전한 레벨로 증폭시키는 증폭수단과, 상기 증폭수단에서 증폭된 출력신호를 받아 전체기능을 제어하는 마이크로컴퓨터와, 상기 증폭수단의 출력신호를 받음과 동시에 상기 마이크로컴퓨터로부터 출력되는 제어신호를 받아서 전원스위치의 차단제어신호를 출력하는 구동수단과, 상기구동수단으로부터 출력되는 차단제어신호를 받아서 입력 전원선의 한선을 차단하고, 사용자에 의해 전원선의 다른 한선을 단락시키게 되어 있는 전원차단수단과, 누전발생시에 상기 마이크로컴퓨터로부터 출력되는 제어신호를 받아서 누전을 표시하는 디스플레이수단으로 이루어진 것을 특징으로 하는 전기세탁기용 누전차단장치.Rectifying means for receiving full-wave rectification in the bridge rectifier circuit receiving AC power, Constant voltage means for outputting the DC voltage output from the rectifying means to a constant voltage of a repgel, Earth leakage detection means for detecting a short circuit in the event of a short circuit of the washing machine; Amplifying means for amplifying the signal detected by the ground fault detecting means to a single level, a microcomputer for controlling an entire function by receiving the output signal amplified by the amplifying means, and receiving an output signal of the amplifying means, A driving means for receiving a control signal output from the microcomputer and outputting a cutoff control signal of the power switch; and receiving a cutoff control signal output from the driving means, and disconnecting one line of the input power line, and shorting another line of the power line by the user. Power interrupting means, and the microcomputer in case of a short circuit Electrical earth leakage protection device for a washing machine that receives the control signal outputted from the consisting of a display means for displaying a short circuit, as claimed. 제1항에 있어서, 상기 정류수단은 전원수단에서 입력되는 교류전압을 브리지회로에서 DC 12V 내지 DC 20V의 레벨로 전파정류하여 상기 증폭수단으로 출력되는 브리지회로와, 동시에 상기 브리지회로에서 출력된 DC 전압을 받아 정전압소자에서 DC 5V의 레벨로 정전압하여 마이크로컴퓨터에 출력하도록 이루어진 것을 특징으로 하는 전기세탁기용 누전차단장치.The bridge circuit according to claim 1, wherein the rectifying means includes a bridge circuit which is full-wave rectified at a level of DC 12V to DC 20V in a bridge circuit and outputted to the amplifying means, and a DC output from the bridge circuit. A ground fault interrupter for an electric washing machine comprising: receiving a voltage and outputting a constant voltage at a level of DC 5V from a constant voltage element to a microcomputer. 제1항에 있어서, 상기 누전감지수단(20)은 누전에 의하여 세탁기에 입력되는 전원선 주위에 발생하는 자장의 불균형으로 인하여 교번하여 발생되는 전류를 추출해내는 영전류변환기(ZCT: Zero Currnet Transforumer)와, 누전발생시에 상기 영상전류변환기(ZCT)의 출력전압을 충방전시키도록 상기 영전류변환기(ZCT)에 병렬로접속된 충방전회로(20a)와, 상기 충방전회로(20a)에 병렬로 접속되어 상기 충방전회로(20a)의 교류 출력신호를반판정류하는 스위칭회로(20b)와, 상기 스위칭회로(20b)의 출력전류를 제한하는 출력저항(R2)으로 이루어진 것을 특징으로 하는 전기세탁기용 누전차단장치.The zero-current transformer (ZCT) according to claim 1, wherein the ground fault detecting means (20) extracts an alternating current generated due to an imbalance of a magnetic field generated around a power line input to a washing machine due to a ground fault (ZCT: Zero Currnet Transforumer). And a charge / discharge circuit 20a connected in parallel to the zero current converter ZCT to charge and discharge the output voltage of the image current converter ZCT when a short circuit occurs, and in parallel to the charge / discharge circuit 20a. And a switching circuit (20b) connected and half-rectifying the AC output signal of the charging and discharging circuit (20a), and an output resistor (R2) for limiting the output current of the switching circuit (20b). Earth leakage breaker. 제1항에 있어서, 증폭수단은 브리지 정류회로(11)에서 출력되는 DC 12V내지 DC 20V의 출력전압을 받아서 정전압을 출력하는 정전압레귤레이터(30a)와, 상기 정전압레귤레이터(30a)로부터 출력되는 정전압을 받음과 동시에 상기 누전감지수단(20)에서 감지한 출력전류를 받아서 증폭하는 차동증폭기(30b)와, 상기 정전압레귤레이터(30a)로부터 출력되는 정전압을 받음과 동시에 상기 차동증폭기(30b)에서 증폭되어서 출력되는 증폭전류를 일정시간 동안 기억시켰다가 출력하는 래치(30c)로 이루어진 것을 특징으로 하는 전기세탁기용 누전차단장치.The constant voltage regulator 30a of claim 1, wherein the amplifying means receives a constant voltage of DC 12V to DC 20V output from the bridge rectifier circuit 11 and outputs a constant voltage, and a constant voltage output from the constant voltage regulator 30a. A differential amplifier 30b for receiving and amplifying the output current sensed by the ground fault detecting means 20 and receiving a constant voltage output from the constant voltage regulator 30a and being amplified by the differential amplifier 30b and outputting the same An electric leakage breaking device for an electric washing machine, comprising: a latch (30c) for storing amplified current for a predetermined time and then outputting the amplified current. 제1항에 있어서, 구동수단(40)은 상기 마이크로컴퓨터(60)의 제어신호를 받아서 반전하는 인버터(41)와, 상기 인버터(41)의 출력신호를 저항(R3)을 통해 받아서 세탁기의 가동을 제어하는 구동소자(42)와 누전발생시에 세탁기의 입력전원을 차단하는 상기 구동소자(42)에 출력되는 제어신호를 완충시키며, 누전발생시시 세탁기의 입력전원을 차단하는 버퍼(43)로 이루어진 것을 특징으로 하는 전기세탁기용 누전차단장치.According to claim 1, The drive means 40 receives the control signal of the microcomputer 60 and the inverter 41 and the output signal of the inverter 41 through the resistor (R3) to operate the washing machine And a buffer 43 for buffering a control signal output to the driving device 42 which cuts off the input power of the washing machine when a short circuit occurs, and blocks the input power of the washing machine when the short circuit occurs. An earth leakage breaker for an electric washing machine, characterized in that. 제1항 또는 제3항에 있어서, 상기 충방전회로는 저항(R1)과 콘덴서(C3)로 이루어진 것을 특징으로 하는 전기세탁기용 누전차단장치.The earth leakage circuit breaker for an electric washing machine according to claim 1 or 3, wherein the charge / discharge circuit includes a resistor (R1) and a capacitor (C3). 제3항에 있어서, 상기 스우칭회로(20b)는 다이오드(D1)와, 다이오드(D2)가 서로 역방향으로 직렬접속도어 있는 것을 특징으로 하는 전기세탁기용 누전차단장치.4. The earth leakage circuit breaker according to claim 3, wherein the switching circuit (20b) has a diode (D1) and a diode (D2) connected in series with each other in reverse direction. 제1항에 있어서, 상기 전원차단수단(50)은 상기 구동수단(40)의 제어에 의해서 누전이 발생되면, 세탁기에 입력되는 전원을 온, 오프(ON, OFF)시키는 코일형 릴레이(L1)로 이루어진 것을 특징으로하는 전기세탁기용의 누전차단장치.The coil type relay (L1) according to claim 1, wherein the power interrupting means (50) turns on, off (ON) the power input to the washing machine when a short circuit occurs under the control of the driving means (40). Earth leakage circuit breaker for an electric washing machine, characterized in that consisting of. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920019956A 1992-10-28 1992-10-28 Electric leakage braking system of electrical washing machine KR0161017B1 (en)

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Application Number Priority Date Filing Date Title
KR1019920019956A KR0161017B1 (en) 1992-10-28 1992-10-28 Electric leakage braking system of electrical washing machine

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Application Number Priority Date Filing Date Title
KR1019920019956A KR0161017B1 (en) 1992-10-28 1992-10-28 Electric leakage braking system of electrical washing machine

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KR940009422A true KR940009422A (en) 1994-05-20
KR0161017B1 KR0161017B1 (en) 1998-12-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100285269B1 (en) * 1997-07-01 2001-04-02 추연경 Electric leakage detection system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060041370A (en) * 2004-11-08 2006-05-12 엘지전자 주식회사 (a) condensing type dryer for having (a) function of earth leakage current detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100285269B1 (en) * 1997-07-01 2001-04-02 추연경 Electric leakage detection system

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