Electric-shock-resisting energy saving device of inverter welding machine

Abstract

The invention belongs to the technical field of electric welding machines and particularly relates to an electric-shock-resisting energy saving device of an inverter welding machine. The electric-shock-resisting energy saving device of the inverter welding machine comprises an AC (alternate current) contactor KM, a step-down circuit K1, a rectifier circuit V1, a DC (direct current) contactor KA, a filter circuit X1, a time delay conducting circuit X2 and a wireless receiving circuit X3; the welding rod holder of the welding machine is provided with a wireless transmission circuit X4, the wireless transmission circuit comprises a wireless transmission module B which is sequentially connected in series with a power source and a power switch K3, and the wireless transmission module B is connected with a wireless receiving module A in the wireless receiving circuit X3 in a wireless mode. The electric-shock-resisting energy saving device of the inverter welding machine is obvious in energy-saving effects and reliable in safety performance, avoids the time delay of 1-3 seconds, takes full consideration of security of people under electric shock and enables an operator to break away from the electric shock the first time; due to power loss within the 1-3 seconds, the possibility of high current caused by contact between a welding gun and a bonding object can be zero, further the possibility of burning a welding machine winding can be avoided, and a wide market place can be obtained; meanwhile, a starting button is mounted onto the welding rod holder in a wireless mode, the electric-shock-resisting energy saving device of the inverter welding machine is easy to operate and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of electric welding machines, in particular to an electric shock prevention and energy saving device for an inverter welding machine. Background technique [0002] The no-load voltage of ordinary electrode arc welding machines is generally above 60V. For example, the welding machine controlled by the insulated gate bipolar transistor (IGBT) inverter is about 60-80V, and the no-load voltage of the thyristor AC-DC dual-purpose machine The voltage is higher, and welding operators have hidden dangers of electric shock when the working environment is relatively humid or the body sweats a lot, and personal safety cannot be effectively guaranteed. Moreover, in the non-welding state, the no-load output voltage of the welding machine Keeping above 60V wastes a lot of power. Contents of the invention [0003] The purpose of the present invention is to provide an inverter welding machine anti-shock energy-saving dev...

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Problems solved by technology

[0002] The no-load voltage of ordinary electrode arc welding machines is generally above 60V. For example, the welding machine controlled by the insulated gate bipolar transistor (IGBT) inverter is about 60-80V, and the no-load voltage of the thyristor AC-DC dual-purpose machine The voltage is higher, and welding operators have hidden dangers of electric shock when the working environment is relatively humid or the body sweats a lot, and personal safety cannot be effectively guaranteed. Moreover, in the non-welding state, the no-load output voltage of the welding machine Keeping above 60V wastes a lot of power

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