CN201735933U

CN201735933U - Delay controller circuit of electric welder

Info

Publication number: CN201735933U
Application number: CN2010202238844U
Authority: CN
Inventors: 张乾子; 王宇宙
Original assignee: YUZHOU ELECTRIC POWER INDUSTRY Co Ltd
Current assignee: YUZHOU ELECTRIC POWER INDUSTRY Co Ltd
Priority date: 2010-06-12
Filing date: 2010-06-12
Publication date: 2011-02-09
Anticipated expiration: 2020-06-12

Abstract

The utility model belongs to the field of automatic control and particularly relates to a delay controller circuit of an electric welder, which can realize delay operation. The controller consists of a shell arranged outside a handle of the electric welder, and a controller delay circuit arranged in the shell, wherein the controller delay circuit comprises a welder handle switch K2, a resistor R3, a sensitive relay TA, diodes D1 and D2, alternating-current contactors CJ1, CJ2 and CJ3, a rectifier transformer B, time relays SJ1 and SJ2, an inductance coil L, and indicating lamps Z1 and Z2. The delay controller circuit of the electric welder has the advantages of simple circuit, safety and energy conservation, the electric welder adopting the circuit not only can improve the factor of personal safety, but also can suppress the non-load operation of the welding transformer to the maximum degree, thus reducing the non-load current and consumption greatly, increasing the power factor and stabilizing the metering accuracy obviously.

Description

The electric welding machine delay time controller circuit

Technical field

The utility model belongs to automation field, is specifically related to a kind of electric welding machine delay time controller circuit that can delay cut-off.

Background technology

Electric welding machine is that the high heat that utilizes electrode and weldment to produce hard arc comes the deposite metal, hard arc temperature during work is up to 6000 ℃, arc current 20A-2000A, therefore going up it is a kind of highly energy-consuming electrical equipment, be commonly called as electricity-eating tiger, moreover rated duty cycle is generally all about 60%, the time of welder transformer 40% is to be in no-load running, this no-load current just causes loss big, and power factor reduces, waste of energy.With regard to BX1 series electric welding machine, primary voltage 380V power supply, every KVA primary current is 2.8A; Primary voltage 220V power supply, every KVA primary current is 4.6A.This shows that the no-load running of welding transformer will consume a certain amount of electric energy.The coefficient of personal safety simultaneously reduces, and power factor reduces, and the metering device precision reduces.

Summary of the invention

The purpose of this utility model is to overcome deficiency of the prior art and a kind of electric welding machine delay time controller circuit that is used for electric welding machine and energy-saving safe is provided.

The purpose of this utility model is achieved in that this controller is by the shell that is arranged on electric welding machine handle outside, and the delaying time of controller circuit that is provided with is in the enclosure formed, wherein the delaying time of controller circuit comprises welding machine grip switches K2, resistance R 3, sensitive relay TA, diode D1, D2, A.C. contactor CJ1, CJ2, CJ3, rectifier transformer B, time relay sj 1, SJ2, inductance coil L, indicator lamp Z1, Z2, power firestreak N (B) through diode D2 respectively with time relay sj 2, A.C. contactor CJ2 is electrically connected, time relay sj 2 is electrically connected with sensitive relay TA by A.C. contactor CJ1, A.C. contactor CJ2 is electrically connected with inductance coil L, inductance coil L is by A.C. contactor CJ3, time relay sj 1, resistance R 3 is electrically connected with zero-power line A, simultaneously inductance coil L and A.C. contactor CJ3, after being electrically connected, time relay sj 1 is electrically connected with sensitive relay TA again; Elementary and the main power line of rectifier transformer B is electrically connected, and the secondary and diode D1 of rectifier transformer B is electrically connected, and diode D1 is electrically connected with sensitive relay TA; Welding machine grip switches K2 two ends are electrically connected with diode D1, sensitive relay TA respectively; Delaying time of controller circuit and electric welding machine main circuit are in parallel.

Described electric welding machine main circuit comprises resistance R 1, R2, A.C. contactor CJ4, CJ5, wherein live wire N (B) is electrically connected with electric welding machine by resistance R 1, A.C. contactor CJ4 successively, and zero line A is electrically connected with electric welding machine by resistance R 2, A.C. contactor CJ5 successively.

Between sensitive relay TA and A.C. contactor CJ1, be electrically connected with indicator lamp Z1, between sensitive relay TA and inductance coil L, be electrically connected with indicator lamp Z2.

Described delaying time of controller circuit is by K switch 1 control.

The utlity model has following advantage: the utlity model has that circuit is simple, the advantage of energy-saving safe.Adopted the electric welding machine of this circuit can not only improve the personal safety coefficient, and can contain the no-load running of welding transformer to greatest extent, thereby no-load current and loss are reduced greatly, power factor also is improved, and measuring accuracy is obviously stable.

Description of drawings

Fig. 1 is an electrical block diagram of the present utility model.

The specific embodiment

As shown in Figure 1, the utility model is by the shell that is arranged on electric welding machine handle outside, and the delaying time of controller circuit that is provided with is in the enclosure formed, wherein the delaying time of controller circuit comprises welding machine grip switches K2, resistance R 3, sensitive relay TA, diode D1, D2, A.C. contactor CJ1, CJ2, CJ3, rectifier transformer B, time relay sj 1, SJ2, inductance coil L, indicator lamp Z1, Z2, power firestreak N (B) through diode D2 respectively with time relay sj 2, A.C. contactor CJ2 is electrically connected, time relay sj 2 is electrically connected with sensitive relay TA by A.C. contactor CJ1, A.C. contactor CJ2 is electrically connected with inductance coil L, inductance coil L is by A.C. contactor CJ3, time relay sj 1, resistance R 3 is electrically connected with zero-power line A, simultaneously inductance coil L and A.C. contactor CJ3, after being electrically connected, time relay sj 1 is electrically connected with sensitive relay TA again; Elementary and the main power line of rectifier transformer B is electrically connected, and the secondary and diode D1 of rectifier transformer B is electrically connected, and diode D1 is electrically connected with sensitive relay TA; Welding machine grip switches K2 two ends are electrically connected with diode D1, sensitive relay TA respectively; Delaying time of controller circuit and electric welding machine main circuit are in parallel.

Described delaying time of controller circuit is by K switch 1 control.

Easily touch electrode holder K switch 1 after electric welding field work is ready, electrode holder K switch 1 is closed immediately, and weld job is proceeded, when intermittently or when suspending welding, and the power switch automatic disconnection of delaying time.The purpose that time-delay disconnects is in order to stop weldering in short-term, to cause the power switch frequent movement, thereby increases the welder transformer number of times of electric current that withstands shocks, and guarantees not influence welding rod and satisfy interrupted welding requirements of one's work and use.

Claims

1. electric welding machine delay time controller circuit, it is characterized in that: this controller is by the shell that is arranged on electric welding machine handle outside, and the delaying time of controller circuit that is provided with is in the enclosure formed, wherein the delaying time of controller circuit comprises welding machine grip switches K2, resistance R 3, sensitive relay TA, diode D1, D2, A.C. contactor CJ1, CJ2, CJ3, rectifier transformer B, time relay sj 1, SJ2, inductance coil L, indicator lamp Z1, Z2, power firestreak N (B) through diode D2 respectively with time relay sj 2, A.C. contactor CJ2 is electrically connected, time relay sj 2 is electrically connected with sensitive relay TA by A.C. contactor CJ1, A.C. contactor CJ2 is electrically connected with inductance coil L, inductance coil L is by A.C. contactor CJ3, time relay sj 1, resistance R 3 is electrically connected with zero-power line A, simultaneously inductance coil L and A.C. contactor CJ3, after being electrically connected, time relay sj 1 is electrically connected with sensitive relay TA again; Elementary and the main power line of rectifier transformer B is electrically connected, and the secondary and diode D1 of rectifier transformer B is electrically connected, and diode D1 is electrically connected with sensitive relay TA; Welding machine grip switches K2 two ends are electrically connected with diode D1, sensitive relay TA respectively; Delaying time of controller circuit and electric welding machine main circuit are in parallel.

2. electric welding machine delay time controller circuit according to claim 1, it is characterized in that: described electric welding machine main circuit comprises resistance R 1, R2, A.C. contactor CJ4, CJ5, wherein live wire N (B) is electrically connected with electric welding machine by resistance R 1, A.C. contactor CJ4 successively, and zero line A is electrically connected with electric welding machine by resistance R 2, A.C. contactor CJ5 successively.

3. electric welding machine delay time controller circuit according to claim 1 is characterized in that: be electrically connected with indicator lamp Z1 between sensitive relay TA and A.C. contactor CJ1, be electrically connected with indicator lamp Z2 between sensitive relay TA and inductance coil L.

4. electric welding machine delay time controller circuit according to claim 1 is characterized in that: described delaying time of controller circuit is by K switch 1 control.