KR930020801A

KR930020801A - Overload breaker

Info

Publication number: KR930020801A
Application number: KR1019920003436A
Authority: KR
Inventors: 변태섭
Original assignee: 변태섭
Priority date: 1992-03-02
Filing date: 1992-03-02
Publication date: 1993-10-20

Abstract

본 발명은 과부하 차단기에 관한 것으로 특히 가전품 전원 공급용 콘센트속에 설치하여 다량의 전류가 흐르는 경우 전원을 차단시켜 줌으로서 안전을 도모코자 하는 과부하 차단기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overload circuit breaker, and more particularly, to an overload circuit breaker intended for safety by blocking a power supply when a large amount of current flows in an electrical appliance power supply outlet.

전원 입력단자와 부하사이에 트라이악과 트랜스의 1차측을 직열연결하여 트랜스로 하여금 과부하를 감지토록하고 이와같이 감지되는 트랜스의 2차측에 유기되는 전압이상으로 상승될 때 트랜지스터를 도통시켜 지연회로를 통해 동작회로를 가동시킴으로서 발광다이오드의 빛에 의해 수광소자로 하여금 상기한 트라이악의 게이트 전압을 차단함으로서 부하측에 연결되는 TV, 전열기등과 같은 가전품등의 부하측을 보호하도록하며 이와같은 전원차단을 완전히 전자회로에 의해 실행하여 접점소손등의 결함없이 또 시각적으로 통전과 차단을 확인하며, 반영구적으로 사용할 수 있도록 한 것이다.The triac and the primary side of the transformer are connected in series between the power input terminal and the load so that the transformer can detect an overload and when the voltage rises above the induced voltage on the secondary side of the detected transformer, the transistor is energized and operated through a delay circuit. By activating the circuit, the light-receiving element blocks the gate voltage of the triac by the light of the light emitting diode so as to protect the load side of a home appliance such as a TV, an electric heater, and the like connected to the load side. It can be used semi-permanently by visually confirming energization and blocking without defects such as contact damage.

Description

Overload breaker

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

첨부된 도면은 본 발명은 설명키 위한 실시예의 전기적 회로도이다.The accompanying drawings are electrical circuit diagrams of embodiments for explaining the present invention.

Claims

When the power is cut off by a sensing circuit that detects the power of the load side, the primary side of the transformer T is connected between the power input terminal and the load LOAD side, and a transistor is induced at the secondary side according to the flow of current. Q ₁ ), the sensing circuit to turn ON-OFF, the delay circuit consisting of the nendgate (U ₁ , U ₂ ) and the resistor (R ₆ ) and the capacitor (C ₃ ), the nendgate (U ₃ , U ₄ ) and An operation circuit for operating transistors Q ₂ and Q ₃ through a differential circuit consisting of a capacitor C ₂ and a resistor R ₃ , and a light emitting diode connected between a gate of the transistor Q ₂ and a power supply ( LED ₂ ) is an overload circuit breaker characterized in that to form a photocoupler and a photocoupler (Cds) to turn the gate power of the triac (TRIAC) ON-OFF.

An overload circuit breaker characterized by setting a reference voltage with a semi-fixed variable resistor (R ₄ ) between the base of the transistor (Q ₁ ) according to claim 1 and the ground.

Claim 1. The overload circuit breaker of claim 1, wherein the triac TRIAC is connected in series with the primary side of the transformer T between the power supply terminal C ₂ and the load LOAD.

Claim 1 Claim 1 The overload circuit breaker for displaying the light-emitting diode (LED ₁ ) is connected to the heat radiation between the both ends of the load (LOAD) side to indicate the operation and the overload by the light emitting diode (LED ₃ ).

※ Note: The disclosure is based on the initial application.