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Gas shielded welding machine power supply

A gas shielded welding machine and power supply technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of complex structure of the control system, increased cost, and failure to reach the output current state

Inactive Publication Date: 2010-02-24
JIANGMEN BOSJOB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The output current of the rectifier circuit of the welding machine in the prior art is generally limited by the inductor. Since the limitation of the output current by the inductor is fixed, the above ideal output current state cannot be achieved.
As an improvement, some welding machines on the market have introduced a control system through which the output current can be controlled in real time. Although the ideal state described above can be achieved, the structure of this control system is complicated and the cost is much higher than that of the original product. Increase

Method used

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Embodiment Construction

[0013] refer to figure 1 , a gas-shielded welding machine power supply of the present invention, its main transformer is a three-phase main transformer, used for grid isolation and energy conversion, an inductor is connected in series in the main power rectification circuit, and the inductor is installed on the magnetic field line generated when it is energized Within the range where the lines of magnetic force generated when the coils of the main transformer are energized intersect.

[0014] The necessary condition to realize the effect of the present invention is that the magnetic lines of force generated when the inductor is energized can intersect with the magnetic lines of force generated when the coil of the main transformer is energized. Fixed on the main transformer, the magnetic field lines emitted by the inductor when it is energized will not enter the iron core of the main transformer. Even if part of it enters the iron core of the main transformer, its strength can...

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Abstract

The invention discloses a gas shielded welding machine power supply, comprising a main transformer for power network isolation and energy conversion and an inductor in series connection in an main power rectification loop. The inductor is installed in a range in which the magnetic lines generated when the inductor is power-on and the magnetic lines generated when the coils of the main transformerare power-on are crossed. Compared with the present product, the invention has the beneficial effects of fast arc ignition in welding, no splashing and enhanced fusion depth.

Description

technical field [0001] The invention relates to a mechanism of a gas shielded welding machine, in particular to a power supply of a gas shielded welding machine. Background technique [0002] The main transformer and inductor are the main inductive components of the power supply of the gas shielded welding machine. The main transformer is used for grid isolation and energy conversion, and the output terminal of its secondary coil is connected to the rectifier circuit. The output current state of the loop directly affects the quality of welding. The ideal output current state is: at the beginning of welding, the output current can have a sufficiently large rising speed so that the welder can quickly strike the arc; Larger, the rising speed is reduced, limiting the sudden rise of the output current, preventing the output current from peaking, and preventing the welding wire from over-current detonating and causing spatter. The output current of the rectifying circuit of the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/10
Inventor 翁良轩
Owner JIANGMEN BOSJOB
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