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Arc-protection circuit protection device and application thereof

A circuit protection and anti-arc technology, which is applied in the direction of circuit devices, emergency protection circuit devices, emergency protection devices with automatic disconnection, etc., to achieve the effect of preventing arc generation

Inactive Publication Date: 2017-12-26
GUANGXI NQT ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 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 provides an arc-proof type circuit protection device and its application, 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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  • Arc-protection circuit protection device and application thereof
  • Arc-protection circuit protection device and application thereof
  • Arc-protection circuit protection device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] An arc-proof circuit protection device, including a housing, an arc-proof component, a voltage sensitive component, an arc-extinguishing element 20, a response switch component, and an electrode lead-out pin; the housing includes an inner shell 1 and an outer cover 2; the The arc protection assembly includes an arc protection 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 trip electrode 6; The trip electrode 6 is composed of a movable electrode piece 6a, an electrode welding terminal 6c and a surge safety switch 6b to form an electrical connection; the electrode lead-out pin includes a soft conductor 12, a first electrode lead-out pin 8 and a second electrode lead-out pin Foot 9; when the inner shell 1 described in the tripping electrode 6 is joined with the outer cover 2, three closed cavities are formed, a...

Embodiment 2

[0072] Another embodiment of an arc-proof circuit protection device of the present invention. This embodiment has a similar structure and usage to most of the components in Embodiment 1, the main differences are:

[0073] 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 movable electrode sheet 6a and the inner end 8b of the first electrode lead-out pin to form electrical contacts by means of metal alloy solder spot welding. connection; the indicating device 11 is a mechanical indicating device 11; the thermal sensitive element 13 is a conductive polymer; the voltage sensitive element 7 is a discharge tube type sensitive element.

[0074] The outer end 8a of the first electrode lead pin and the outer end 9a of the second electrode lead pin protrude from the two external pins formed outside the inner shell 1, and connect these two external pins to the phase line and the groun...

Embodiment 3

[0081] Another embodiment of an arc-proof circuit protection device of the present invention. This embodiment has a similar structure and usage to most of the components in Embodiment 1, the main differences are:

[0082] 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;

[0083] The voltage sensitive element 7 is a discharge gap type sensitive element.

[0084] The outer cover 2 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 is The normal working ...

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PUM

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Abstract

The invention discloses an arc-proof type circuit protection device and its application, which comprises an elastic element, an arc-proof component composed of an arc-proof catapult, a voltage sensitive component, a response switch component, a heat-sensitive component, an arc-extinguishing component, an inner shell and an outer shell. cover. The voltage sensitive component and the response switch component have close thermal coupling. When factors such as instantaneous surge and overvoltage on the line make the voltage sensitive component continue to heat up due to fault short-circuit current, the response switch component will cause the anti- The arc components are ejected and separated to prevent short-circuit overload caused by electric breakdown caused by the arc generated when the switch is ejected and separated, to prevent secondary damage to electronic equipment, and to effectively avoid fire and explosion hazards.

Description

technical field [0001] The invention relates to a circuit protection device, in particular to an arc-proof circuit protection device and its application. 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 an elect...

Claims

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Application Information

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IPC IPC(8): H02H9/04H01H9/30H02H3/22H02H5/04
CPCH02H9/044H01H9/30H02H3/22H02H5/041
Inventor 廖黄苇黄智文周露
Owner GUANGXI NQT ELECTRONICS TECH CO LTD
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