KR850003325Y1 - An electric shock proventing circuit for alternating current arc welding machine - Google Patents
An electric shock proventing circuit for alternating current arc welding machine Download PDFInfo
- Publication number
- KR850003325Y1 KR850003325Y1 KR2019830005083U KR830005083U KR850003325Y1 KR 850003325 Y1 KR850003325 Y1 KR 850003325Y1 KR 2019830005083 U KR2019830005083 U KR 2019830005083U KR 830005083 U KR830005083 U KR 830005083U KR 850003325 Y1 KR850003325 Y1 KR 850003325Y1
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- South Korea
- Prior art keywords
- transformer
- trac
- winding
- welding machine
- triac
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 전체회로도.1 is an overall circuit diagram of the present invention.
본 고안은 별도 특허출원한 보조전압을 이용한 절전형 교류아크 용접기의 전격방지 회로에 관한 것이다.The present invention relates to an electric shock prevention circuit of an energy-saving AC arc welder using an auxiliary voltage applied separately.
상기 발명은 용접기 메인트랜스 MT의 2차측에 주권선 N2과 보조권선 N3간에 트라이악 TRAC을 연결하여 부하가 걸렸을 때 게이트 신호용 트랜스 T의 2차측에 유기된 출력 신호에 의하여 도통되어 출력단 OUT PUT에 보조권선 N3에 유기된 높은 전압(약 95V)이 인가되어 아크 발생을 용이케 하므로서 주권선 N2에 유기된 전압, 즉 무부하전압을 아크유지 전압으로 낮게 하므로서(약 42V) 역률을 90% 이상 개선하도록 된 것으로 무부하시 또는 부하시에는 보조권선 N3의 높은 전압이 출력단에 나타나므로 전기적 충격사고의 위험이 있는 것이다.The invention is connected to the triac TRAC between the main winding N 2 and the auxiliary winding N 3 on the secondary side of the main transformer MT of the welding machine is conducted by the output signal induced on the secondary side of the transformer T for the gate signal when the load is applied to the output terminal OUT PUT The high voltage (approximately 95V) induced in the auxiliary winding N 3 is applied to the main winding N 2 to facilitate the generation of arcs, and the power factor is reduced to 90% by lowering the voltage induced in the main winding N 2 , that is, no-load voltage, to about 42V. In case of no load or load, high voltage of auxiliary winding N 3 appears at the output terminal, and there is a risk of electric shock accident.
본 고안은 이러한 전기적 충격사고를 방지하기 위한 것으로 첨부도면에 의하여 상세히 설명하면 다음과 같다.The present invention is to prevent such an electric shock accident described in detail by the accompanying drawings as follows.
용접기 메인트랜스 MT의 2차측의 주권선 N2과 보조권선 N3을 직열로 연결함에 이들간에 트라이악 TRAC을 접속하여 게이트 신호용 트랜스 TI의 신호에 의하여 트라이악 TRAC을 도통하여 출력단에 주권선 N2의 전압(무부하전압) E0과 보조전압 EI이 인가되도록 된 절전형 교류아크 용접기에 있어서 별도의 트랜스 T2를 부하측에 연결하고 트랜스 TI의 2차권선의 일단은 릴레이 Ry와 연결하여 트라이악 TRACI의 카소드와 연결하였고 트랜스 T2의 2차권선의 타단은 트라이악 TRACI의 아노드와 연결함과 동시에 게이트 신호용 트랜스 TI과 연결하고 트라이악 TRACI와 TRAC의 게이트 G는 서로 연결하여 게이트 신호용 트랜스 TI타단과 연결하였고 보조권선 N3의 중간에 24V 중간탭 A를 설치하여 스위치 SW가 전기한 릴레이 Ry의 작동에 의하여 단자 B와 간에 스위칭하도록 된 것이다.Welder Main2 Sovereign the side of the transformer MT line N 2 and the auxiliary winding N 3 a to connect the triac TRAC between them as the connection to the direct thermal conduction of triac TRAC by the signal of the gate signal transformer T I windings to an output N In the power-saving ac arc welding machine where voltage 2 (no-load voltage) E 0 and auxiliary voltage E I are applied, connect a separate transformer T 2 to the load side and connect one end of the secondary winding of the transformer T I with the relay Ry was connected to the car method of the evil TRAC I 2 the other end of the primary winding of the transformer T 2 is a triac connected with an anode of TRAC I, and at the same time connected to the gate signal transformer T I, and the triac gate G of TRAC I and TRAC each other connected to the gate signal transformer T I was connected to the other end of the secondary winding N 3 intermediate the 24V intermediate tap a is mounted to the switch SW switches between the terminal B and by one of the relay Ry operates the electric It will be referred to the.
이와 같이 된 본 고안은 무부하시는 보조권선 N3의 24V 탭 A와 콘덴서 C를 통해 출력단에 전격방지규정에 따른 무부하시 24V의 전압이 걸려있는 상태로 되며, 부하가 걸리면 게이트신호용 트랜스 TI에 유기된 대전압 소전류의 출력이 트라이악 TRAC과 TRACI을 도통하게 되며, 트라이악 TRACI의 도통으로 트랜스 T22차측에 전력이 유기되어 릴레이 Ry을 작동하여 스위치 SW는 보조권선 N3의 중간 탭 A에서 단자와 스위칭하게 되어 보조권선 N3의 보조전압 EI(보통 95V)이 출력단에 인가되며 아크발생을 용이케함과 동시에 트라이악 TRAC의 도통으로 주권선 N2의 아크유지에 필요한 전압의 대전류가 부하측에 인가용접작업을 행하게 되는 것이다.Thus, the subject innovation is, Department who auxiliary winding N 3 of 24V tap A and the output terminal via the capacitor C is in a state hanging of no load 24V voltage as a function of lightning protection regulations, takes the load induced in the gate signal transformer T I The output of the high voltage and low current is conducted between the triac TRAC and the TRAC I. The conduction of the triac TRAC I causes power to be dissipated to the secondary side of the transformer T 2 so that the relay Ry is operated so that the switch SW is in the middle of the auxiliary winding N 3 . Switched to terminal at tap A, auxiliary voltage E I (normally 95V) of auxiliary winding N 3 is applied to the output terminal and facilitates the generation of arc and at the same time the voltage required to maintain arc of main winding N 2 by conduction of triac TRAC. A large current causes welding to be applied to the load side.
따라서 본 고안은 무부하 상태에서는 보조권선 N3은 탭 A와 접속되어 전격방지 규정전압인 24V만을 출력단에 인가하게 되므로 전기적 충격을 방지할 수 있는 것이다.Therefore, in the present design, the auxiliary winding N 3 is connected to the tap A in the no-load state, so that only 24 V, which is a prescribed voltage protection against electric shock, is applied to the output terminal, thereby preventing electric shock.
이하 본 고안회로는 보조권선 N3에 중간탭을 설치한 간단한 회로구성으로 안전 확실하게 전격을 방지할 수 있고 고장이 적으며, 제조비용이 염가로 되는 등의 이점이 있는 것이다.The present invention has the advantages of a simple circuit configuration in which an intermediate tap is installed on the auxiliary winding N 3 , which can reliably prevent electric shock, reduce failures, and reduce manufacturing costs.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019830005083U KR850003325Y1 (en) | 1983-06-10 | 1983-06-10 | An electric shock proventing circuit for alternating current arc welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019830005083U KR850003325Y1 (en) | 1983-06-10 | 1983-06-10 | An electric shock proventing circuit for alternating current arc welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR850000293U KR850000293U (en) | 1985-02-27 |
| KR850003325Y1 true KR850003325Y1 (en) | 1985-12-31 |
Family
ID=19230273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019830005083U KR850003325Y1 (en) | 1983-06-10 | 1983-06-10 | An electric shock proventing circuit for alternating current arc welding machine |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR850003325Y1 (en) |
-
1983
- 1983-06-10 KR KR2019830005083U patent/KR850003325Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR850000293U (en) | 1985-02-27 |
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