KR810000010Y1 - Automatic current break circuit - Google Patents
Automatic current break circuit Download PDFInfo
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- KR810000010Y1 KR810000010Y1 KR790005710U KR790005710U KR810000010Y1 KR 810000010 Y1 KR810000010 Y1 KR 810000010Y1 KR 790005710 U KR790005710 U KR 790005710U KR 790005710 U KR790005710 U KR 790005710U KR 810000010 Y1 KR810000010 Y1 KR 810000010Y1
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Abstract
내용 없음.No content.
Description
제1도는 본 고안의 장치 회로도.1 is a device circuit diagram of the present invention.
제2도는 본 도안의 사용 실시예도.2 is a diagram showing the use of the present embodiment.
본 고안은 용접기등의 전류자동차단회로 장치에 관한 것으로 일예로서 용접기에 전류자동차단회로장치를 부가하므로서 용접시에는 정격 소요전압이 공급되고 용접이 종료되었을 때에는 자동적으로 1차측 공급전압이 차단되게 하여 용접기의 무부하시 누설전류로 인한 전력의 소모를 방지하고 작업자의 감전사고등으로 인한 위험성을 배제하여 작업의 안전성을 도모토록 한 것이다.The present invention relates to a current cut-off circuit device such as a welding machine. For example, by adding a current cut-off circuit device to a welder, the required voltage is supplied during welding, and the primary supply voltage is automatically cut off when the welding is completed. It prevents power consumption due to leakage current during no load of the welding machine, and eliminates the risks from electric shock accidents of the workers to promote work safety.
이하 본 고안은 첨부 회로도에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying circuit diagram.
용접기의 부하 선로에 CT를 결선하여 매칭용 펄스트랜스(T′)를 연결하고 T′의 2차측에는 D1,D2를 연결하여 정류시키고 R1,R2로 한류 및 분압하여 T1을 안정화하는 동시에 정류된-측에 VR1을 연결하며, 다시 VR1은 TR1의 베이스에 연결하고 TR1의 콜렉터측에 검류용 다이오드(D4)와 자항(R7)을 연결하여 TR2의 베이스에 연결하면, TR2의 콜렉터측과+전원측에 릴레이(Ry)를 연결하여 구성한다.Connect CT to the load line of the welding machine to connect matching pulse transformer (T ′), rectify by connecting D 1 , D 2 to the secondary side of T ′ and stabilize T 1 by current and partial pressure with R 1 , R 2 . At the same time the rectified to - connect the VR 1 to the side and back VR 1 is connected to the base of TR 1, and by connecting a diode (D 4) and a self-propelled (R 7) for the gum to the collector side of the TR 1 of the TR 2 base If connected to the relay, the relay (Ry) is connected to the collector side and the + power supply side of TR 2 .
이상과 같이 구성된 본 고안은 도선에 전류가 흐르면 CT에 의해 감지된 전류가 펄스트랜스(T1)를 통해서 매칭 및 증폭되어 정류용 다이오드(D1,D2)에 전달되고, D1,D2에 전달된 전류가 정류되어 전류크기 조정용 가변저항(VR1)에 전달된다.According to the present invention configured as described above, when a current flows through the wire, the current sensed by the CT is matched and amplified through the pulse transformer T 1 , and then transferred to the rectifying diodes D 1 and D 2 , and D 1 , D 2. The current transmitted to the rectifier is rectified and transmitted to the variable resistor VR 1 for current size adjustment.
이때 R1,R2는 T1의 2차측에 병렬로 연결되어 T1의 개방정도를 제한하므로서 이상 전류시 T1및 CT 의 안정을 도모하고 안정된 신호를 TR1에 공급한다.Wherein the R 1, R 2 are connected in parallel to the secondary side of T 1 and when more than hameuroseo limit the degree of opening of the T 1 current plan stability of T 1 and CT and supplies the stabilized signal to TR 1.
한편, VR1을 통한 전류는 TR 의 베이스에 전달되어 TR1에 의해 증폭된 전류는 D4를 통하여 다시 검출되어 R7을 통해 TR2의 베이스에 전달됨으로서 TR2의 콜렉터에미터간이 도통하여 릴레이(Ry)가 작동된다.On the other hand, the current through VR 1 is transmitted to the base of TR, and the current amplified by TR 1 is detected again through D 4 and transmitted to the base of TR 2 through R 7 , so that the collector emitter of TR 2 conducts and relays. (Ry) is activated.
여기서 TR1과 TR2의 베이스에 각각 연결되어 있는 R3와 R6은 R4와 R8의 바이어스 전류를 조정해주기 위한 안정저항이고, C1은 CT에 의한 감지전류가 중지 되었을 때 Ry의 정지를 지연시켜주기 위한 시정수용 콘덴서이다.Where R 3 and R 6 connected to the bases of TR 1 and TR 2 are stable resistors for adjusting the bias currents of R 4 and R 8 , and C 1 is the stop of Ry when the CT sense current is stopped. Capacitor for delaying time.
상기 Ry의 작동은 SCR 및 마그네틱 콘닥터(M.C)에 연결되어 전원을 개폐시키게 된다.The operation of Ry is connected to the SCR and the magnetic doctor (M.C) to open and close the power.
이 전원의 폐로 작동은 용접기등의 용접작업이 종료 되었을시 입력측의 전원공급이 중지되는 것과 같다.Closing operation of this power supply is equivalent to stopping the power supply on the input side when welding work such as welding machine is finished.
제2도는 본 고안의 사용도의 일예를 표시한 것으로 통상의 용접기(T2)에 제어용 변압기(T3)를 병렬로 결선하여 T2의 2차측에 감지전압(12V-15V)을 인가시키고 제1도와 같은 본 고안 차단회로를 용접기의 부하선로에 연결하게 되면 용접을 하지 않을때에는 미소한 제어용 전압만이 T2의 차측에 공급되고 용접과 동시 전기한, Ry의 작동에 의해 주개폐기(Mc)가 작동케 되어 용접기에 전원이 공급되므로서 용접을 하게 된다.2 is a view showing an example of the use of the present invention, by connecting the control transformer T 3 in parallel to a conventional welding machine (T 2 ) to apply a sensing voltage (12V-15V) to the secondary side of T 2 When the circuit of the present invention such as 1 degree is connected to the load line of the welding machine, when welding is not performed, only a small control voltage is supplied to the secondary side of T 2 , and the main switchgear (Mc) is operated by the operation of Ry, which is simultaneously electrically welded. Is activated and the welding machine is supplied with power.
또한 주개폐기가 작동하는 것과 동시에 T2의 2차측에 공급되고 있는 제어용 인가 전압은 자동적으로 차단 된다.At the same time that the main switch operates, the control voltage applied to the secondary side of T 2 is automatically cut off.
이러한 용접기의 전류공급 콘트롤 작용은 모두 자동적으로 이루어지므로 작업자는 안전하게 작업에 임할 수 있고 감전사고등의 우려가 없으며, 종래와 같은 누설전류로 인한 전력의 소모가 없어서 매우 실용적이다.Since the current supply control action of the welding machine is all made automatically, the operator can work safely, there is no fear of electric shock, etc., and there is no power consumption due to leakage current as in the prior art, which is very practical.
또한 본 고안의 차단회로 장치는 발전기 및 전동기의 과부하로 인한 전기적 안전장치의 목적으로도 동시에 그 효과를 달성할 수 있다.In addition, the blocking circuit device of the present invention can achieve the effect at the same time for the purpose of the electrical safety device due to the overload of the generator and the motor.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR790005710U KR810000010Y1 (en) | 1979-09-17 | 1979-09-17 | Automatic current break circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR790005710U KR810000010Y1 (en) | 1979-09-17 | 1979-09-17 | Automatic current break circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR810000010Y1 true KR810000010Y1 (en) | 1981-01-31 |
Family
ID=19214410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR790005710U KR810000010Y1 (en) | 1979-09-17 | 1979-09-17 | Automatic current break circuit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR810000010Y1 (en) |
-
1979
- 1979-09-17 KR KR790005710U patent/KR810000010Y1/en not_active IP Right Cessation
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| FPAY | Annual fee payment |
Payment date: 19860315 Year of fee payment: 6 |
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