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Tripping type lightning protection piezoresistor

A technology of varistors and conductive rods, which is applied in the direction of resistors, resistor parts, non-adjustable metal resistors, etc., can solve the problems that the circuit cannot be disconnected in time without varistor cooling, and the varistor is inconvenient to disassemble. Overhaul and replacement, effects of preventing burning

Inactive Publication Date: 2021-08-27
户壮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the prior art that there is no mechanism for cooling the varistor and the circuit cannot be disconnected in time after being struck by lightning, and the varistor is inconvenient to disassemble, and proposes a tripping lightning protection varistor

Method used

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  • Tripping type lightning protection piezoresistor
  • Tripping type lightning protection piezoresistor
  • Tripping type lightning protection piezoresistor

Examples

Experimental program
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Effect test

Embodiment 1

[0028] refer to Figure 1-5 , a varistor for tripping type lightning protection, comprising a mounting case 1, a first support rod 1023 is fixedly connected to the mounting case 1, a ring 1021 is rotatably connected to the first support rod 1023, and a ring 1021 is fixedly connected to the first support rod 1023 There is a shift lever 102, a first junction block 103 and a second junction block 104 are fixedly connected in the installation shell 1, a conductive sheet 1041 is fixedly connected on the second junction block 104, a cutting mechanism is provided on the ring 1021, and a cutting mechanism is provided on the cutting mechanism. There is a first cooling mechanism, an unlocking mechanism is provided on the first cooling mechanism, a second cooling mechanism is arranged on the unlocking mechanism, and a bottom plate 101 is disassembled and connected to the bottom of the installation shell 1 .

[0029] When the circuit is struck by lightning or the voltage is too high, the ...

Embodiment 2

[0039] refer to Figure 1-5 , is basically the same as Embodiment 1, furthermore, the cutting mechanism includes a rotating rod 2, a second rod 201 is fixedly connected in the installation shell 1, and the rotating rod 2 is connected to the second rod 201 in rotation, and the second rod 201 is sleeved with a torsion spring 2011, and the two ends of the torsion spring 2011 are fixedly connected to the installation shell 1 and the rotating rod 2 respectively, one end of the rotating rod 2 is connected to the connecting rod 202 in rotation, and the ring 1021 is fixedly connected to the connecting ring 1022 One end of the connecting rod 202 away from the rotating rod 2 is rotatably connected to the connecting ring 1022, the other end of the rotating rod 2 is fixedly connected with a conductive rod 204, the conductive rod 204 is attached to the conductive sheet 1041, and the first terminal block 103 is fixedly connected with a Copper wire 1031, the end of copper wire 1031 far away ...

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Abstract

The invention discloses a tripping type lightning protection piezoresistor, and belongs to the technical field of piezoresistors. The tripping type lightning protection piezoresistor comprises a mounting shell, a cutting mechanism is arranged on a circular ring, and a first cooling mechanism is arranged on the cutting mechanism; an unlocking mechanism is arranged on the first cooling mechanism, and a second cooling mechanism is arranged on the unlocking mechanism. According to the present invention, a circuit can be timely cut off after being struck by lightning by arranging a cut-off mechanism, the explosion of the piezoresistor caused by excessive heating is avoided, the piezoresistor can be timely cooled after the circuit is cut off by arranging the first cooling mechanism, and the piezoresistor is prevented from being damaged by long-time high temperature; by arranging the unlocking mechanism, the piezoresistor is fixedly contacted after the circuit is cut off, so that the maintenance and replacement are facilitated; by arranging the second cooling mechanism, after the piezoresistor is fixedly contacted, a fluorinated liquid is sprayed to cool the whole interior of the mounting shell, and combustion caused by overheating in the mounting shell is prevented.

Description

technical field [0001] The invention relates to the technical field of varistors, in particular to a varistor for tripping lightning protection. Background technique [0002] The varistor is a resistive device with nonlinear volt-ampere characteristics. It is mainly used to clamp the voltage when the circuit is under overvoltage and absorb excess current to protect sensitive devices. The resistive body material of the varistor is a semiconductor. Now widely used zinc oxide varistor, its main material is composed of divalent element zinc and hexavalent element oxygen. [0003] However, during the use of the existing lightning protection varistor, due to the unstable voltage, the resistance heats up, and the high temperature for a long time causes the resistance to age, which greatly shortens the service life of the resistance, and the existing lightning protection varistor encounters voltage If the voltage is too large and exceeds the maximum voltage, the circuit cannot be c...

Claims

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Application Information

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IPC IPC(8): H01C1/024H01C1/08H01C1/082
CPCH01C1/024H01C1/08H01C1/082H01C7/126
Inventor 户壮孙可红胡致宁
Owner 户壮