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Surge protector and thermal tripping mechanism thereof

A technology of surge protector and thermal tripping, which is applied in the direction of protection switch operation/release mechanism, protection switch, emergency protection device, etc. It can solve problems such as easy wire drawing, difficult welding, unstable tripping performance, etc., and achieve reliable Installation, temperature concentration, and the effect that is conducive to product tripping

Active Publication Date: 2015-03-04
SEARI ELECTRIC TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If one solder joint is used, the pins of two varistors and one discharge tube are welded together, which is difficult to weld and easy to draw when tripping
If multiple solder joints are used, the heat is not easy to concentrate, resulting in unstable tripping performance

Method used

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  • Surge protector and thermal tripping mechanism thereof
  • Surge protector and thermal tripping mechanism thereof
  • Surge protector and thermal tripping mechanism thereof

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Embodiment Construction

[0026] First, the term "connection" used here is explained. This article deals with mechanical and electrical structures, so the term "connection" includes both mechanical and electrical connections. The mechanical connection is required to meet the mechanical strength and mechanical operation, and the electrical connection is required to meet the electrical conduction. For those skilled in the art, it can be clearly understood from the context that the "connection" used everywhere refers to mechanical connection, electrical connection or both.

[0027] refer tofigure 1 , Figure 4A and Figure 4B , discloses a first embodiment of a surge protector. figure 1 , Figure 4A and Figure 4B The structure of the first embodiment of the surge protector is disclosed from different directions. The surge protector includes: a housing, a first protection element, a second protection element, a connecting piece and an elastic mechanism.

[0028] In one embodiment, the housing is fo...

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Abstract

The invention discloses a thermal tripping mechanism of a surge protector. The thermal tripping mechanism comprises an elastic mechanism, wherein two first protection components and a second protection component form a Y-shaped layout and are directly or indirectly connected through thermal fusing materials; the elastic mechanism comprises an elastic part and a slide part; the elastic part drives the slide part to move by elastic force. When the first protection components are both in a normal working state, the thermal fusing materials do not reach the fusing temperature, the first protection components and the second protection component form a conductive path, and the elastic part is in an energy storage state; when one or two of the first protection components are in an abnormal working state, the thermal fusing materials reach the fusing temperature and are fused, and the elastic part releases energy for driving the slide part to move so as to cut off the conductive path.

Description

technical field [0001] The invention relates to the field of low-voltage electrical appliances, more specifically, to a surge protector in the low-voltage electrical appliances. Background technique [0002] In a low-voltage power distribution system, a surge protector (Surge Protection Device, SPD) is usually used for protection against overvoltage caused by external influences such as lightning. For protection of terminal appliances use a type III surge protective device (SPD). At present, the existing Class III SPDs on the market mainly provide common mode protection. Since common-mode protection has certain limitations, it is desirable to have a surge protector that can provide both common-mode protection and differential-mode protection. [0003] The surge protector in Y layout can provide common mode protection and differential mode protection at the same time. The so-called Y-type layout means that the surge protector includes two first protection elements (usually...

Claims

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Application Information

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IPC IPC(8): H01H71/20H01H71/04H01H83/10
CPCH01H71/122H01H71/20H01H83/10H01H71/04H01H2085/0486
Inventor 杨帆李人杰金建荣曹阳葛伟骏
Owner SEARI ELECTRIC TECH
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