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Electric shock prevention protection device of electric welding machine

A protection device and anti-electric shock technology, applied in welding protection devices, arc welding equipment, welding equipment, etc., can solve the problems of limited protection function, inability to effectively avoid personnel electric shock accidents, etc., and achieve simple structure, ensure safety, and operate safely and reliably. Effect

Inactive Publication Date: 2016-10-12
张超
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, the electric welding machine only has a power-saving protection device. When the no-load state is detected, the secondary voltage is reduced to 15-20V after a delay, which is still higher than the 12V safe voltage in a metal container or in a humid environment stipulated by the state. Therefore, the current Some power-saving protection devices have very limited protection functions and cannot effectively avoid the occurrence of electric shock accidents

Method used

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Embodiment Construction

[0010] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0011] figure 1 and figure 2 It shows an electric shock protection device for an electric welding machine of the present invention, which includes a single-chip microcomputer control device 9, a clock pulse control unit 13, light-emitting diode control units 10, 11, leakage protection control unit 14, a fault reset control unit 12, and an electric shock detection Control unit 4,7. Described single-chip microcomputer control device 9 can be ATmega16 type single-chip microcomputer (number of pins is preferably 40), can also be other model single-chip microcomputers, PLC programmable controller or other control devices. Wherein, the 10 in the single-chip microcomputer control device 9 # 、30 # The pin is a power supply input terminal, and the power supply voltage is preferably 5V; 11 # 、31 # The pin is grounded; the c...

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PUM

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Abstract

The invention relates to an electric shock protection device for an electric welding machine. It includes a single-chip microcomputer control device, a clock pulse control unit, a light-emitting diode control unit, a leakage protection control unit, a fault reset control unit, and an electric shock detection control unit. The clock pulse control unit, LED control unit, leakage protection control unit, fault reset control unit, and electric shock detection control unit are all connected to the single-chip microcomputer control device; the electric shock detection control unit includes a primary power supply and a control circuit and two Secondary loop. It has the advantages of simple structure, low cost, easy manufacture and safe and reliable operation. It can reliably detect welding operators in real time, and ensure that welding operators can quickly get out of danger when they get an electric shock, so as to ensure the safety of personal life.

Description

technical field [0001] The invention relates to a power supply technology of an electric welding machine, in particular to an electric shock protection device for a DC or AC electric welding machine. Background technique [0002] At present, electric welding machine is one of the most widely used construction equipment in modern industrial production. Electric welding machine is a welding power supply equipment that converts electric energy into heat energy. The solder and the material to be soldered on the strip to achieve the purpose of combining them. Electric welding machines are widely used in major industries such as construction, shipbuilding, and equipment manufacturing. Since the no-load voltage of electric welding machines is 60-90V, which is far higher than the safe voltage of 36V, the working voltage required to maintain the arc is 16-35V during welding operations. Left or right, exceeding the 12V safety voltage in metal containers or in humid environments, ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/10B23K9/32
CPCB23K9/10B23K9/321
Inventor 张超
Owner 张超
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