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Single IGBT inversion type manual arc welding machine universal for power supplies of both grids

A network power supply and inverter technology, applied in arc welding equipment, welding equipment, welding equipment, etc., to achieve high reliability, high efficiency and low cost production, and good market adaptability

Inactive Publication Date: 2017-07-14
朱宣东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There will also be great differences in product performance, reliability, manufacturing process and cost.

Method used

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  • Single IGBT inversion type manual arc welding machine universal for power supplies of both grids
  • Single IGBT inversion type manual arc welding machine universal for power supplies of both grids
  • Single IGBT inversion type manual arc welding machine universal for power supplies of both grids

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Embodiment Construction

[0026] Such as figure 1 Shown, is the structural representation of a kind of IGBT inverter manual arc welding machine that utilizes the present invention to make, and the main components of its welding machine include:

[0027] 1) Shell part, including shell 3, handle 2, bottom plate 28, shell screws, etc.

[0028]2) The rear panel, the components installed on the rear panel mainly include: power switch 25, power cord 26, power cord that cannot be pulled off, rear plastic panel 24, cooling fan 27 and other parts; the power cord 26 is connected to the power grid. Power switch 25 controls the on or off of welding machine power supply. Cooling fan 27 is positioned at the rear portion of welder, and cold wind is carried out from the air intake hole of welder rear portion. It can make some heat-generating devices or components in the left circuit part, such as IGBT and radiator radiator, fast recovery diode and radiator and other components, be better cooled. Such design of the ...

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Abstract

The invention relates to a single IGBT inversion type manual arc welding machine universal for power supplies of both grids. Four control circuit boards of the welding machine are designed, namely a PCB1 power supply board, a PCB2 power control board, a PCB3 control board and a PCB4 bus protection board circuit control board; mainly a switching power supply control circuit is arranged on the PCB1 power supply board; the PCB2 power control board comprises a drive control circuit, an outputting and rectifying circuit, an automatic supply voltage recognition and conversion control circuit and an electrifying buffering control circuit; a circuit composed of a microprocessor, a nixie tube of the microprocessor and a current-given potentiometer of the microprocessor, and an output characteristic control circuit are arranged on the PCB3 control board; and mainly a bus protection board circuit control board is arranged on the PCB4 control board. The single IGBT inversion type manual arc welding machine can automatically recognize the 220V power supply and the 380V power supply and control conversion of the 220V power supply and the 380V power supply, and has high voltage adaptability and high grid voltage fluctuation resistance.

Description

technical field [0001] The invention relates to a circuit and a structure of an IGBT single-tube inverter manual arc welding machine that can be used with single-phase 220V and 380V power sources, and belongs to the technical field of inverter welding machines. [0002] technical background [0003] At present, the competition in the inverter welding machine product market is very fierce, which is not only reflected in the advancement and advantages of technology, but also largely depends on the function and design of the welding machine. [0004] In the domestic and foreign markets, the rated current of the small IGBT tube inverter manual arc welding machine is usually at the level of 80~200A (load duration 100~15%). The power supply is usually single-phase 220V. Products that can be used with both single-phase 220V and 380V power sources are commonly known as "welders with full network power" or "dual voltage welders". There are some similar products like this on the mark...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/09B23K9/10B23K37/00
CPCB23K9/091B23K9/1043B23K37/003
Inventor 孙敏魏继昆王斌陈法庆朱宣辉朱宣东
Owner 朱宣东
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