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High-voltage arc strike electric welding machine

An electric welding machine and high-voltage technology, which is applied in the field of electric welding machines with arc striking devices, can solve the problems of poor arc striking effect, large current loss, and low inductive reactance of secondary coils, etc., and achieve good arc striking effects

Inactive Publication Date: 2006-05-24
陈欢
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the high-frequency and high-voltage electricity of the existing device is superimposed on the secondary coil of the electric welding machine in parallel, due to the low inductance of the secondary coil, the current loss is large, and the arc ignition effect is poor.

Method used

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  • High-voltage arc strike electric welding machine

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Embodiment Construction

[0011] The high-voltage arc ignition welding machine of the embodiment includes a main coil L1 and a secondary coil L2 wound on the iron core, the main coil L1 is connected to the power input terminal, the secondary coil L2 is connected to the welding output terminal, and the iron core is composed of the main iron core 1 Composed of the auxiliary iron core 2, the two iron cores partially overlap, the main coil L1 is wound on the main iron core 1, the secondary coil L2 is wound on the overlapping part of the main iron core 1 and the auxiliary iron core 2, and the auxiliary iron core 2 is set There is an auxiliary coil L3, and the auxiliary coil L3 is connected to the capacitive discharge oscillating circuit as a discharge coil of the circuit.

[0012] The capacitive discharge oscillating circuit is composed of capacitors C1, C2, diode D2, bidirectional trigger diode D3, silicon controlled rectifier BCR, and a discharge coil that is an auxiliary coil L3. This circuit uses capaci...

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Abstract

The present invention discloses a high-voltage arc-striking welder. It includes main coil and secondary coil which are winded on the iron core, the main coil is connected with power supply input terminal, the secondary coil is connected with welding output terminal, the iron core is formed from main iron core and auxiliary iron core. The main coil is winded on the main iron core, the secondary coil is winded on the coincident portion of main iron core and auxiliary iron core, on the auxiliary iron core an auxiliary coil is set, said auxiliary coil is connected with capacitor discharge oscillating circuit, and can be used as discharge coil of said circuit. Said invention also provides its working principle for producing high-voltage discharge.

Description

technical field [0001] The invention relates to an electric welding machine, which is an electric welding machine with an arc striking device. Background technique [0002] The existing arc welding machine is composed of a main coil and a secondary coil wound on the iron core. The main coil is connected to the power input terminal, and the secondary coil is connected to the welding output terminal. It transforms the AC power to provide a large current. An arc is generated at the contact point with the workpiece for welding. Due to the low voltage used in welding, if the surface of the workpiece is unclean and has poor conductivity at the beginning of welding, it is difficult to strike the arc. [0003] At present, there is an electric welding machine with an arc starting device, which uses an oscillating circuit to generate high-frequency and high-voltage alternating current, which is connected to the welding clamp. When the electrode is close to the workpiece, the high-fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/067
Inventor 陈欢
Owner 陈欢
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