CN201685013U

CN201685013U - Energy saving device for alternating current electric welding machine

Info

Publication number: CN201685013U
Application number: CN2010201923139U
Authority: CN
Inventors: 雷根成
Original assignee: Hengyang Fengshun Automobile Axle Co Ltd
Current assignee: Hengyang Fengshun Automobile Axle Co Ltd
Priority date: 2010-05-12
Filing date: 2010-05-12
Publication date: 2010-12-29
Anticipated expiration: 2020-05-12

Abstract

The utility model relates to an energy saving device for alternating current electric welding machine, which is characterized in that a control working circuit thereof is composed of a power supply transformer, a bidirectional controllable silicon, and a relay. During discontinuous work of the welding machine, when pressing a microswitch of a welding gun held by hand to weld, a relay coil connects with the power supply to adhere, a normal open contact thereof is closed to trigger the bidirectional controllable silicon to be connected, and a welding machine transformer is primarily connected with the power supply to work. When the work pauses, the microswitch is disconnected, the relay is released, the normal open contact thereof is disconnected to cut off the bidirectional controllable silicon, the welding machine transformer is primarily disconnected with the power supply, which reduces the no-load losses and saves the energy source, the utility model has simple structure, low production cost, and safe and reliable operation, and is suitable for the alternating current electric welding machine which is discontinuous work and adopts the transformer to couple.

Description

A kind of energy saver of A.C. welder

Technical field

The utility model relates to the energy saver of a kind of automaton, particularly a kind of A.C. welder.

Background technology

At present, adopt transformer-coupled A.C. welder in interrupter duty, when break-off, primary still is connected in the circuit, and open circuit loss reaches 5%～8%, the cost height, and have potential safety hazard.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned weak point, and provides a kind of circuit structure simple, reduces welding machine open circuit loss, reduces production costs the energy saver of safe and reliable A.C. welder.

The purpose of this utility model is achieved in that a kind of energy saver of A.C. welder, comprises shell, it is characterized in that its control operating circuit is made up of power transformer, bidirectional triode thyristor, relay.

The utility model is owing to design more than adopting, in the welding machine interrupter duty, when hand torch is pressed the microswitch welding, relay coil is connected power supply and adhesive, its normally opened contact closure triggers the bidirectional triode thyristor conducting, the elementary connection power supply of welder transformer and working.When break-off, microswitch disconnects, relay discharges, and its normally opened contact disconnects and causes bidirectional triode thyristor to turn-off, the elementary deenergization of welder transformer, reduced open circuit loss, energy savings, circuit structure is simple, and production cost is low, safe and reliable, be fit to interrupter duty and adopt transformer-coupled A.C. welder to use.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is control operating circuit circuit diagram.

The specific embodiment

Now illustrated embodiment is made detailed description to the utility model in conjunction with the accompanying drawings.

As shown in Figure 2, its control operating circuit is made up of power transformer B, bidirectional triode thyristor VS, relay J, and after wherein ac power input end connected power switch K, serial connection fuse F, the F other end also connect bidirectional triode thyristor VS one main electrode and resistance R ₂, the elementary end of power transformer B, R ₂The other end is connected in series behind the capacitor C and meets another main electrode of VS, relay J normally opened contact J ₁One end is the elementary link of welder transformer, bidirectional triode thyristor VS control utmost point series resistor R ₁The back connects J ₁The other end, another utmost point of power switch K output connects the elementary other end of power transformer B, is another elementary link of welder transformer, and the two ends behind B level serial connection of the power transformer relay J coil are respectively the link at welding gun microswitch two ends.Each element is installed in the enclosure, on the panel, outconnector.

Claims

1. the energy saver of an A.C. welder, comprise shell, the control operating circuit that it is characterized in that it is made up of power transformer B, bidirectional triode thyristor VS, relay J, after wherein ac power input end connected power switch K, serial connection fuse F, the F other end also connect bidirectional triode thyristor VS one main electrode and resistance R ₂, the elementary end of power transformer B, R ₂The other end is connected in series behind the capacitor C and meets another main electrode of VS, relay J normally opened contact J ₁One end is the elementary link of welder transformer, bidirectional triode thyristor VS control utmost point series resistor R ₁The back connects J ₁The other end, another utmost point of power switch K output connects the elementary other end of power transformer B, be another elementary link of welder transformer, two ends behind B level serial connection of the power transformer relay J coil are respectively the link at welding gun microswitch two ends, each element is installed in the enclosure, on the panel, outconnector.