KR810001746Y1 - Alarm-type leakage breaker - Google Patents

Alarm-type leakage breaker Download PDF

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Publication number
KR810001746Y1
KR810001746Y1 KR2019800006825U KR800006825U KR810001746Y1 KR 810001746 Y1 KR810001746 Y1 KR 810001746Y1 KR 2019800006825 U KR2019800006825 U KR 2019800006825U KR 800006825 U KR800006825 U KR 800006825U KR 810001746 Y1 KR810001746 Y1 KR 810001746Y1
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KR
South Korea
Prior art keywords
alarm
circuit
scr
relay
earth leakage
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KR2019800006825U
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Korean (ko)
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이용호
Original Assignee
삼성전자공업주식회사
강진구
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Priority to KR2019800006825U priority Critical patent/KR810001746Y1/en
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Publication of KR810001746Y1 publication Critical patent/KR810001746Y1/en

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    • 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
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass

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  • Emergency Protection Circuit Devices (AREA)

Abstract

내용 없음.No content.

Description

누전 차단 및 경보형 고밀도 집적회로Earth Leakage Protection and High Density Integrated Circuits

제1도는 종래의 누전차단기 회로도.1 is a conventional circuit breaker circuit diagram.

제2도는 본 고안의 회로도.2 is a circuit diagram of the present invention.

본 고안은 종래의 누전차단기 IC에 경보회로와 플립플롭을 집적한 경보형 누전차단기 IC (KA 2802)에 의하여 누전의 경보를 알림과 동시에 전원을 차단하도록 한 경보형 누전차단기에 관한 것이다.The present invention relates to an alarm type circuit breaker which cuts off power at the same time as the alarm type circuit breaker IC (KA 2802) incorporating an alarm circuit and flip-flop in a conventional circuit breaker IC.

종래에는 제1도와 같이 누전검지기(ZCT)로부터 검지하여, 이 신호에 따라 누전차단기 IC (IC1 ; KA2801)가 동작하므로서 릴레이(또는 반도체 사이리스터소자)가 전원을 차단할 수 있도록 하고 있으나, 이런 누전차단기를 가전기기나 다른 전기장치에 부착할 경우 즉, 냉장고에 부착할 때에는 누전차단기에 의하여 전원이 차단된다면 안전이라는 목적은 달성되지만, 냉장고의 내용물은 손상되게 되므로 경보형 누전차단기에 의해 신속히 경보를 울려주는 것이 필요하게 되었다.Conventionally, as shown in FIG. 1, a ground fault breaker IC (IC1; KA2801) operates according to the signal to detect a ground fault breaker (ZCT), so that the relay (or semiconductor thyristor element) can cut off the power supply. When attached to a household appliance or other electrical device, that is, when attached to a refrigerator, if the power is cut off by an earth leakage breaker, the purpose of safety is achieved, but since the contents of the refrigerator are damaged, an alarm type earth leakage breaker prompts an alarm. It became necessary.

이러한 필요에 의해 종래의 누전차단기용 IC에 경보회로와 플립플롭을 추가하여 하나의 IC로 집적하여 경보 및 누전차단 회로를 구성한 것으로 외부 회로가 간단하여짐은 물론, 누전에 대한 반응이 검출과 동시에 신속히 나타나, 재빠른 경보 및 차단효과를 가져올 수 있어 냉장고는 물론 경보가 필요한 가전제품 및 기타기기에 사용하므로 예기치 못한 피해를 막을 수 있도록 구성한 것으로 이를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.This necessity adds an alarm circuit and a flip-flop to a conventional circuit breaker IC and integrates it into a single IC to form an alarm and circuit breaker circuit. Appeared quickly, it can bring a quick alarm and blocking effect, so that it is used in home appliances and other devices that require an alarm, as well as configured to prevent unexpected damage as described in detail by the accompanying drawings as follows.

제2도에서와 같이 증폭기(OP1), 비교기(OS1), SCR구동드라이버(B1)회로가 내장된 통상의 IC1(KA 2801)에 있어서, 경보비교기(OS2) 및 경보구동드라이버(B3)회로를 추가내장하여 집적시킨 IC(IC2; KA 2802)에 전원차단회로(A,B), 부저(Bz), 누전검지기(ZCT) 및 리세트스위치(R-SW)를 연결하여 구성하며 이때 전원 차단회로(A,B)는 임의로 A 또는 B의 회로를 선택하여 사용하는데, 전원차단회로 A는 전원에서 릴레이(Ry1) 및 트랜지스터(Q1)를 거쳐 접지하며, 트랜지스터(Q1)베이스 단자에서 저항(R1)을 통해 IC(IC2)의 ②번 핀에 연결하고, 부저(Bz)를 통해 접지한다.In the conventional IC 1 (KA 2801) in which the amplifier OP 1 , the comparator OS 1 , and the SCR driver B 1 circuit are incorporated as shown in FIG. 2 , the alarm comparator OS 2 and the alarm driver (B 3 ) Connect the power cut-off circuit (A, B), buzzer (Bz), earth leakage detector (ZCT) and reset switch (R-SW) to IC (IC 2 ; KA 2802) integrated with integrated circuit In this case, the power cut-off circuits (A, B) are arbitrarily selected by using a circuit of A or B. The power cut-off circuit A is grounded through the relay Ry 1 and the transistor Q 1 at the power source, and the transistor ( Q 1 ) Connect to pin ② of IC (IC 2 ) through the resistor (R 1 ) at the base terminal and ground it through the buzzer (Bz).

또한 누전검지기(ZCT)는 저항(R3)과 병렬로 하여 한쪽 끝은 저항(R2)을 거쳐 ①'번핀에, 타측은 ②'번핀에 연결하고, ④'⑤'번핀은 같이 연결한 후 리세트 스위치(R-SW) 통하여 접지하고, 전원 차단회로(B)는 ⑦'⑩번 핀을 함께 연결하여 다이오드(D1)를 거쳐 사이리스터(SCR)의 게이트에 연결하며, 이 사이리스터(SCR)는 릴레이(Ry2)와 직렬로 하여 전원과 접지사이에 연결한다.In addition, the earth leakage detector (ZCT) is connected in parallel with the resistor (R 3 ), and one end is connected to the ① pin through the resistor (R 2 ), the other side is connected to the ② pin, and the ④ '⑤' pin is connected together. Ground through the reset switch (R-SW), and the power cut-off circuit (B) is connected to the gate of the thyristor (SCR) through the diode (D 1 ) by connecting pins ⑦'⑩ together, the thyristor (SCR) Connect in series with relay (Ry 2 ) between power and ground.

이와 같은 구성의 본 고안은 누전검지기 (ZCT)에 의하여 누전이 검지되면 경보형 누전차단기 IC(IC2)의 내부 회로 구성에 따라 2입력 차동증폭회로(OP1)를 거쳐 비교기(OS1)에 입력되고, SCR구동 드라이버(B1)를 거친 출력은 경보비교기(OS2) 및 경보 구동드라이버(B3)를 통하여 부저(Bz)를 울리면서, 전원 차단회로 A의 트랜지스터(Q1)를 동작시키면 이에 따라 릴레이(Ry1)가 동작하여 전원을 차단하고, 이 때 전원 차단회로 B는 ⑦'번핀에서의 출력을 다이오드(D1)로 정류하며, 사이리스터(SCR)의 게이트에 입력을 가하게 되어 사이리스터(SCR)가 통전된다. 따라서 사이리스터(SCR)가 통전되면 전류를 흘리게 되어 릴레이(Ry2)가 동작되므로 전원을 차단하게 된다.According to the present invention of the above configuration, when a short circuit is detected by the ground fault detector (ZCT), the comparator (OS 1 ) passes through a two-input differential amplifier circuit (OP 1 ) according to the internal circuit configuration of the alarm type circuit breaker IC (IC 2 ). The input and output through the SCR driving driver B 1 sounds the buzzer Bz through the alarm comparator OS 2 and the alarm driving driver B 3 to operate the transistor Q 1 of the power cut-off circuit A. Then, the relay (Ry 1 ) operates to cut off the power, and at this time, the power cut-off circuit B rectifies the output at pin ⑦ 'to the diode D 1 and applies an input to the gate of the thyristor SCR. Thyristor SCR is energized. Therefore, when the thyristor (SCR) is energized, the current flows and the relay Ry 2 operates so that the power is cut off.

또한 ④' 및 ⑤'번핀에 연결된 리세트스위치(R-SW)는 누전시릴레이(Ry1또는 Ry2)에 의하여 전원이 차단되고 부저(Bz)의 경보가 울리게 되면, 누전을 확인하고 그 요인을 제거한 뒤 리세트 스위치(R-SW)를 누르게 되면 경보형 누전차단기 IC(IC2)내의 비교기(OS1)의 한입력상태를 ＂O＂로 변환시키게 되고 원상태로 복귀하게 된다.In addition, if the reset switch (R-SW) connected to pins ④ 'and ⑤' is turned off by the earth leakage relay (Ry 1 or Ry 2 ) and the alarm of the buzzer (Bz) sounds, the earth leakage is checked and the factor If the reset switch (R-SW) is pressed after removing, the input state of the comparator (OS 1 ) in the alarm type circuit breaker IC (IC 2 ) is converted to 'O' and returned to the original state.

이 때 전원 차단회로 A,B는 임의로 선택하여 사용할 수 있음을 나타낸 것이다.At this time, the power cutoff circuits A and B can be arbitrarily selected and used.

이와 같은 본 고안은 누전에 의한 반응검출이 신속히 나타나 재빠른 경보 및 차단효과를 가져오므로서 냉장고는 물론 경보가 필요한 가전제품 및 기타기기에 사용하므로서 예기치 못한 피해를 막을 수 있고, 외부회로가 간단해질 수 있는 특징을 지닌 것이다.The present invention can prevent the unexpected damage by using the refrigerator, as well as home appliances and other devices that require an alarm by quickly detecting the leakage caused by short-circuit, resulting in a quick alarm and blocking effect, and the external circuit can be simplified. It has a characteristic.

Claims (1)

증폭기(OP1), 비교기(OS1), SCR 구동드라이버(B1)가 내장된 통상의 IC (IC1; KA2801)에 있어서, 경보비교기(OS2) 및 경보구동 드라이버(B3)를 추가내장하여 집적시킨 IC (IC2; KA2802)에 릴레이(Ry1), 트랜지스터(Q1), 저항(R1)으로 구성된 전원차단회로(A)와 릴레이(Ry2), 사이리스터(SCR), 다이오드(D1)로 구성된 전원 차단회로(B) 및 부저(Bz), 누전검지기(ZCT), 리세트스위치(R-SW)를 연결하여서 구성된 경보형 누전차단기.In the conventional IC (IC 1 ; KA2801) in which an amplifier (OP 1 ), a comparator (OS 1 ), and an SCR driving driver (B 1 ) are incorporated, an alarm comparator (OS 2 ) and an alarm driving driver (B 3 ) are added. Integrated circuit integrated IC (IC 2 ; KA2802) with power cut-off circuit (A) consisting of relay (R 1 ), transistor (Q 1 ), resistor (R 1 ), relay (R 2 ), thyristor (SCR), diode (D 1 ) Alarm type earth leakage breaker composed by connecting power cutoff circuit (B), buzzer (Bz), earth leakage detector (ZCT) and reset switch (R-SW).
KR2019800006825U 1980-10-25 1980-10-25 Alarm-type leakage breaker KR810001746Y1 (en)

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KR2019800006825U KR810001746Y1 (en) 1980-10-25 1980-10-25 Alarm-type leakage breaker

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KR2019800006825U KR810001746Y1 (en) 1980-10-25 1980-10-25 Alarm-type leakage breaker

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