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Fast breaking arc-preventing lightning arrester

A lightning arrester and arc protection technology, applied in the direction of automatic disconnection emergency protection device, protection against overvoltage, emergency protection circuit device for limiting overcurrent/overvoltage, etc., to prevent arcing. Effect

Inactive Publication Date: 2018-01-19
GUANGXI NQT ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects and deficiencies of the existing surge protection device when the device is short-circuited and overloaded by overvoltage, and to provide a lightning protection device of a fast-breaking arc-proof type, which has the functions of preventing arc generation and overloading of the short-circuit overload current. The rapid breaking function can effectively prevent arc generation and quickly separate the surge protection device in case of short circuit overload, which can fundamentally eliminate fire hazards and ensure the safety of electronic equipment

Method used

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  • Fast breaking arc-preventing lightning arrester

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as figure 1 As shown, a lightning arrester of quick-break arc protection type includes a housing, an arc protection assembly, a voltage sensitive assembly, a response switch assembly, and an electrode lead-out pin; the housing includes an inner shell 1 and an outer cover 2; the The arc-proof assembly includes an arc-proof ejector 3 and an elastic element 14; the voltage sensitive assembly includes at least one voltage sensitive element 7; the response switch assembly includes a heat sensitive element 13, a front electrode 7a and a tripping electrode; The tripping electrode is composed of a movable electrode piece 6a, an electrode welding end 6c and a breaking position 6b, and the moving electrode piece 6a, the electrode welding end 6c and the breaking position 6b form a circuit connection; the electrode lead-out pin includes a soft conductor 12. The first electrode lead-out pin 8 and the second electrode lead-out pin 9; the arc-proof ejector 3 is firmly connected t...

Embodiment 2

[0072] Such as Figure 6 As shown, another embodiment of a quick breaking arc-proof lightning arrester of the present invention. This embodiment has a similar structure and usage to most of the components in Embodiment 1, the main difference is:

[0073] The third cavity 1a is not filled with flame retardant arc extinguishing material, and the surge protection device does not contain the remote signaling alarm device 4; the two ends of the soft conductor 12 are respectively connected to the The movable electrode sheet 6a and the inner end 8b of the first electrode lead pin form a circuit connection; the indicating device 11 is a mechanical indicating device; the thermal sensitive element 13 is a conductive polymer; the voltage sensitive element 7 is a discharge Tubular sensitive element; the outer end 8a of the first electrode lead-out pin and the outer end 9a of the second electrode lead-out pin protrude from the two external pins formed outside the inner shell 1, and the tw...

Embodiment 3

[0078] Such as Figure 9 As shown, another embodiment of a quick breaking arc-proof lightning arrester of the present invention. This embodiment has a similar structure and usage to most of the components in Embodiment 1, the main difference is:

[0079] The surge protection device does not contain an indicating device 11 and an indicating window 2a, but uses a remote signaling alarm device 4 as a working status indicator; the voltage sensitive element 7 is a discharge gap type sensitive element.

[0080] The outer cover is provided with a remote signaling notch 2b, and the remote signaling alarm device 4 is arranged inside the outer cover 2, and its alarm lead-out pin 4a extends out of the outer cover 2. When using a surge protection device in a power supply system, connect the two external pins to the phase line and the neutral line or the ground line respectively. At this time, the switch of the remote signaling alarm device 4 is not pressed by the external stress, which i...

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PUM

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Abstract

The invention discloses a fast breaking arc-preventing lightning arrester. The fast breaking arc-preventing lightning arrester comprises an elastic element, an arc preventing assembly, a voltage-sensitive assembly, a response switching assembly, a heat-sensitive element, an inner shell and an outer cover. The fast breaking arc-preventing lightning arrester is used for suppressing instantaneous surge overvoltage in a circuit. The voltage-sensitive assembly and the response switching assembly are in tight thermal coupling, and the response switching assembly drives the arc preventing assembly toperform ejection separation because of the thermal coupling response of the heat-sensitive element when the voltage-sensitive assembly is heated continuously by fault short-circuit current due to thefactors of instantaneous surge overvoltage and the like on a line, thereby preventing short-circuit overload caused by electric breakdown formed by electric arcs generated during ejection separationof a switch, and effectively avoiding fire and explosion hidden troubles.

Description

technical field [0001] The invention relates to a circuit protection device, in particular to a lightning protection device of fast breaking arc protection type. Background technique [0002] Surge protector or surge suppressor (surge suppressor), also known as surge protection device, is a device that provides overvoltage safety protection for various sensitive or expensive electronic equipment, such as electronic components on computers and communication-related equipment. protective device. Existing surge protection devices are usually designed for surge overvoltage protection under medium or general conditions, so when the surge overvoltage energy is small or the time is short, the surge protection device at this time cannot be quickly and sensitively Response protection, so we usually apply voltage-sensitive protection components (such as varistors) directly to electronic circuits to achieve the purpose of protecting electronic circuits. The commonly used varistor is ...

Claims

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Application Information

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IPC IPC(8): H02H9/04H01H9/30H02H3/22H02H5/04
Inventor 廖黄伟黄智文
Owner GUANGXI NQT ELECTRONICS TECH CO LTD
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