Anti-explosion power source surge protector

A surge protector, explosion-proof technology, applied in the field of power surge protectors, can solve the problems of inability to ensure, inability to apply lightning strike circuits, etc.

Active Publication Date: 2005-10-19
四川中光信息防护工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned patent has a certain protective function, all its terminals are exposed outside, so when a large current passes through, sparks will be generated.
Therefore, it cannot be used in lightning strike circuits and inflammable and explosive places

Method used

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  • Anti-explosion power source surge protector
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  • Anti-explosion power source surge protector

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Embodiment Construction

[0023] see figure 1 , figure 2 with image 3 According to a preferred embodiment provided by the present invention, it includes a housing 1 and a protection circuit 2 installed in the housing 1, the protection circuit 2 is installed on a circuit board 31, and the circuit board 31 is installed In a box body 32, the box body 32 is filled with high insulation and flame-retardant packaging filler 33, and the box body 32 is provided with a terminal 34, which is combined into a protection circuit module 3; a plurality of the protection circuit modules 3 is installed on a circuit board 11 in the housing 1, the housing 1 is filled with high insulation and flame-retardant packaging filler 12 again, and the housing 1 is provided with a wiring connection with the module 3 Terminal 34 is electrically connected to the lead wire 13. In the present invention, the lightning protection circuit 2 is first packaged in the box body 32 to make the module 3, and then the module 3 is installed o...

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PUM

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Abstract

An explosion-proof power supply surge protector includes a shell and a protection circuit mounted on a circuit board in box filed with high insulation fire-retartant packaged fillers, a connector is set on the box to form a protection circuit module, multiple protection circuit modules are mounted on a circuit board in the shell to be filled with high insulation fire-retartant package filler again and lead out wires connected with the connector on the module are set outside of the shell. The protector will not burst when meeting lightning by twice package, which can be used in the inflammable and explosive environment or humid fields.

Description

technical field [0001] The invention relates to a power surge protector, in particular to an explosion-proof type that can be used in inflammable and explosive places, such as petroleum, chemical industry, natural gas, coal gas, liquefied petroleum gas, and places with high density of inflammable and explosive dust. Power surge protector. Background technique [0002] National standards and industry standards require that the surge arrester (SPD) used in flammable and explosive places cannot generate electric sparks during work, but the current power supply arrester (SPD) produced at home and abroad does not have the explosion-proof function. Especially for some discharge gap type (switching) arresters, this arrester will generate a large electric spark when it conducts the discharge lightning current; another type of voltage-limiting arrester will also generate electric sparks when it is damaged by lightning and bursts, so in Petrochemical systems and flammable and explosi...

Claims

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Application Information

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IPC IPC(8): H02H7/00H02H9/00
Inventor 王德言刘寿先王大维丁旭东
Owner 四川中光信息防护工程有限责任公司
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