Portable electric welding machine

Abstract

The invention relates to a portable electric welding machine which solves the problems that a motor-generator welder which is used in existing electric power engineering construction causes floating voltage between weld handles and threatens personal safety, the motor-generator welder is not in a range of visibility of an electric welder, and safety of intermediate links are uncontrollable. The portable electric welding machine comprises an outer shell and a rectification and filtration module arranged inside the outer shell, a battery pack arranged inside the outer shell is used as a direct-current power source, the battery pack is connected with a direct/alternating inverting module, the direct/alternating inverting module is connected with the rectification and filtration module, the rectification and filtration module is connected with an insulated gate bipolar translator (IGBT) power switch element to conduct frequency modulation on direct current, and the IGBT power switch element is connected with a weld module. The battery pack is used as a direct current power source, an external power source is not needed, the portable electric welding machine can be placed in a safe range of an electric welding position, the length of a weld line is quite proper, a site of messy weld lines does not occur, dangers are prevented from happening, the portable electric welding machine is located in the range of visibility of the electric welder all the time and is in a controllable state, and therefore safety is high.

Description

technical field [0001] The invention relates to an electric welding machine, in particular to a portable electric welding machine which is easy to carry and use. Background technique [0002] In electric power construction, electric welding is required for making grounding grids, fixing electrical equipment, and making bridges, and electric welding is also required for emergency repair work involving equipment replacement and installation. Therefore, electric welding construction has become an indispensable part of electric power engineering. process. [0003] Current welding machines are generally powered by an AC grid, and the power supply is 380 / 200V. Due to the poor construction environment of new projects, the construction unit often needs to provide its own power supply, or the construction needs to provide its own power supply when the equipment fails and the power is cut off during emergency repairs. The welding operation needs to use a power generation welding mach...

AI Technical Summary

Problems solved by technology

[0007] The invention solves the problem that the electric welding machine and the electric welding position are far apart due to the use of a power generation electric welding machine in the existing electric power engineering construction, which causes the no-load voltage between the welding handles to threaten personal safety, and the electric welding machine is not within the sight range of the electric welder, and the intermediate links are safe For uncontrollable problems, provide a portable electric welding machine, which can place the electric welding machine in the safe range of the welding position, and meet the optimal length of the welding wire. Therefore, the electric welding machine is always in the sight of the electric welder, and the safety factor is high.

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