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Safe type inverse direct-current welding machine

A safe, direct current technology, applied to arc welding equipment, welding equipment, manufacturing tools, etc., to achieve clear instructions, convenient switching, and prevent electric shock accidents

Inactive Publication Date: 2008-11-19
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a safe inverter DC welding machine, which overcomes the electric shock problem existing in the existing inverter DC welding machine when it is unloaded, generates a stable arc when it is loaded, and can meet welding requirements in various environments

Method used

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  • Safe type inverse direct-current welding machine

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Embodiment approach

[0028] like figure 1 As shown, the present invention provides a safe inverter DC welding machine, including:

[0029] Power frequency rectifier 101;

[0030] A filter 102, the input end of which is connected to the output end of the power frequency rectifier 101;

[0031] A power transistor inverter 103, the input end of which is connected to the output end of the filter 102;

[0032] A current transformer 104, the input end of which is connected to the output end of the power transistor inverter 103;

[0033] An intermediate frequency pulse transformer 105, whose input ends are respectively connected to the output ends of the power transistor inverter 103 and the current transformer 104;

[0034] Intermediate frequency rectifier 106, its input end is connected to the output end of intermediate frequency pulse transformer 105;

[0035] A reactor 107, the input end of which is connected to the output end of the intermediate frequency rectifier 106;

[0036] An intermediate...

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Abstract

The invention provides a safe inverter DC electric welding machine. A current transformer is connected in series with the output end of a power transistor inverter and the input end of a medium frequency pulse transformer, the output end of the current transformer is connected with a medium frequency rectifier, and the output end of the medium frequency rectifier is connected to a control circuit. The safe inverter DC electric welding machine overcomes the electric shock problem of the prior inverter DC electric welding machine when the electric welding machine is idle, and generates stable arc when the electric welding machine is loaded, thereby satisfying welding requirements of various environments.

Description

technical field [0001] The invention relates to a safe inverter DC electric welding machine. Background technique [0002] Electrode arc welding is the most widely used welding method in industrial production, and it is used in all walks of life. However, there are many unsafe factors due to its particularity. For example, in order to achieve instant arcing, the output voltage of the output side of the arc welding machine is generally maintained at 75-90 volts when it is no-load. 1. When working in a high-altitude metal component environment, direct contact with the welding handle wire is prone to electric shock accidents, resulting in direct or indirect personal injury. [0003] With the development of arc welding technology and electronic technology, an inverter DC arc welding machine with small size, low power consumption and convenient output adjustment is being gradually popularized and applied. The inverter DC arc welding machine outputs a stable welding current to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/10B23K9/067
Inventor 舒振宇
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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