Electric shock prevention device for electric welding machine

An anti-electric shock and electric welding machine technology, which is applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problem of death by electric shock and achieve rapid tripping and excellent anti-electric shock effect

Active Publication Date: 2012-07-11
左敬民
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in dangerous occasions such as ballast tank welding operation

Method used

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  • Electric shock prevention device for electric welding machine
  • Electric shock prevention device for electric welding machine
  • Electric shock prevention device for electric welding machine

Examples

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Example Embodiment

[0041] An electric shock protection device for an electric welding machine of the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings.

[0042] Electric welding machine anti-shock device of the present invention, as figure 1 As shown, use a simple ring signal line (the signal line is placed on the finger, or held in the palm of the hand; or the signal line is connected to a conductive object, and the conductive object is in contact with the hand or wrist, ankle, etc.), and the welding The weak electric induction signal when any part of the worker's body gets an electric shock is extracted synchronously and accurately, and quickly drives the leakage protector or high-power relay or contactor to cut off the power (driving the high-power relay or contactor to cut off the power can also protect people from electric shock , but the reliability is worse, the power-off speed is slower, and the anti-shock effect is worse.)....

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Abstract

An electric shock prevention device for an electric welding machine is provided with a finger ring line, an electric shock prevention circuit, a finger ring line detecting circuit and a transmission switching signal circuit, wherein output of the electric shock prevention circuit and output of the finger ring line detecting circuit are respectively connected with an electric leakage protection unit, the transmission switching signal circuit is connected with the electric leakage protection unit through a required switching circuit, and the finger ring line comprises a core wire, an insulating layer, a shielding layer and an outer insulating layer in a wrapping manner from inside to outside. The electric shock prevention device is rapid and reliable in tripping and excellent in electric shock prevention effect. The simple finger ring signal line (the signal line is sleeved on a finger or held in a hand, or the signal line is connected with a conductor, and then the conductor contacts with the hand or a wrist, an ankle and the like) synchronously and accurately extracts weak electric induction signals when an optional portion of the body of an electric welder is in electric shock, and rapidly drives an electric leakage protector, a specially customized high-power relay or a specially customized contactor to cut off power (a person in electric shock can be protected by driving the high-power relay or the contactor to cut off the power).

Description

technical field [0001] The invention relates to an electric shock prevention device. In particular, it relates to an anti-shock device for electric welding machines that can synchronously and accurately extract the weak electric induction signals when any part of the welder's body gets an electric shock through a ring signal line, and quickly drive a high-power relay or contactor to cut off the power. . Background technique [0002] The shipbuilding industry has a large amount of welding work and a complex working environment. However, due to the lack of effective anti-shock technology to protect welders, there have been many incidents of welding machine deaths over the years, which have not been effectively resolved. [0003] At present, the welding machine energy saver used in various industries also has an auxiliary anti-shock function at no-load, which is realized by switching between low and high voltages during no-load and welding. When the voltage is low at no-load (...

Claims

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Application Information

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IPC IPC(8): B23K9/10
Inventor 左敬民肖智全杨承华张植元
Owner 左敬民
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