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Surge protective device

A surge protector and electrode 2 technology, applied in protection switches, emergency protection devices, parts of protection switches, etc., can solve the problems of tripping stuck, deterioration, arcing, etc. The effect of increased heat transfer rate and shortened tripping time

Active Publication Date: 2017-12-22
CHENGDU XINGYE LEIAN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 1. Electrode 2 is formed by bending and flanging the body, and its heat transfer time is long, so that the welding point between electrode 2 of the varistor and the shrapnel cannot be melted in a short time under overcurrent or overvoltage, which will cause The problem of tripping sticking and slow tripping, and the slow tripping time will cause arcing, wire drawing and burning, and the safety is poor
[0010] 2. The connecting surface between electrode 2 and the shrapnel is a vertical surface. The tripping between electrode 2 and the shrapnel needs to be pushed by the trip bracket to successfully trip. The surge protector is used for a long time, and the trip bracket, spring and other components will naturally deteriorate. The elastic force is not enough to push the shrapnel and the second electrode to trip, causing the trip to be stuck, causing burning, and the safety is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as image 3 As shown, what this embodiment protects is a surge protector, which includes a base 1, a trip bracket 2, a shrapnel 3, pin one 4, pin two 5, a varistor 6, a spring 7 and a shell body (not shown in the figure), the base 1 is provided with two electrode holes 10, two pin grooves 11 and a shaft 12, one electrode hole 10 is located at the lower right side of the base 1, and the other electrode hole 10 is located at the left side, The two pin slots 11 are respectively located on the left and right sides of the base 1 , the shaft 12 is located at the lower left of the base 1 , and the shell completely covers the base 1 .

[0040] The tripping bracket 2 has the same structure as the existing tripping bracket, and will not be described again.

[0041] Elastic piece 3 comprises elastic piece body 30, electrode two connecting portion 31 and pin two connecting portion 32, and elastic piece body 30 is provided with vertical spring angle 33, and electrode two conne...

Embodiment 2

[0048] This embodiment is basically the same as Embodiment 1, the difference is that the 7-position volute of the spring is installed on the shaft 12 , one end of the volute spring is connected to the shaft 12 , and the other end is connected to the trip bracket 2 .

Embodiment 3

[0050] This embodiment protects a surge protector, which includes a base 1, a shrapnel 3, a pin 4, a pin 2 5, a piezoresistor 6 and a housing (not shown in the figure), the base 1 There are two electrode holes 10, two pin slots 11 and a shaft 12, one electrode hole 10 is located at the lower right side of the base 1, the other electrode hole 10 is located at the left side, and the two pin slots 11 are respectively located at the left and right sides of the base 1 On both sides, the shaft 12 is located at the lower left part of the base 1 , and the shell completely covers the base 1 .

[0051] The varistor is provided with electrode 1 60 and electrode 2 61. After the varistor 6 is installed on the base 1, the shrapnel 3 and the electrode 2 61 are welded together by fusible metal, and the connection surface between the shrapnel 3 and the electrode 2 61 is a horizontal plane. Under the vertical elastic force of the elastic piece 3 , the elastic piece 3 and the second electrode 61...

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PUM

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Abstract

A surge protective device disclosed by the present invention comprises a pedestal, a piezoresistor, a release support, a spring leaf, a pin 1 and a pin 2. The piezoresistor is equipped with an electrode 1 and an electrode 2, the pin 1 and the pin 2 are installed at the two sides of the pedestal, and the release support is in hinge joint with the pedestal. The electrode 2 protrudes, after the piezoresistor is installed on a shell, the electrode 1 and the pin 1 are connected, and the electrode 2 penetrates the shell. One end of the spring leaf is welded together with the electrode 2 via a fusible metal, and the other end is connected with the pin 2. The release support abuts against the spring leaf under the acting force of a spring. The surge protective device can release rapidly, effectively avoids the arc, wire drawing and combustion phenomena, and enables the safety to be improved.

Description

technical field [0001] The invention belongs to the technical field of lightning protection, in particular to a surge protector capable of quick tripping. Background technique [0002] Surge protector (also known as surge protector, surge protector, lightning arrester, lightning protector, etc., referred to as SPD) is an electronic device that provides safety protection for various electronic equipment, instruments, and communication lines. When a peak current or voltage suddenly occurs in the electrical circuit or communication line due to external interference, the surge protector can turn on the shunt in a very short time, thereby avoiding damage to other equipment in the circuit by the surge. It is suitable for AC 50 / 60HZ, rated voltage to 380V power supply system (or communication system), to protect indirect lightning and direct lightning effects or other transient overvoltage surges, suitable for family residences, tertiary industries and industries According to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/12H01H71/20
CPCH01H71/122H01H71/20
Inventor 李才许顺杰周熙贵田巨
Owner CHENGDU XINGYE LEIAN ELECTRONICS
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