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Combined varistor

A piezoresistor and combined technology, applied in piezoresistors, resistors, overvoltage protection resistors, etc., can solve the problems of long response time and troubles of discharge tubes

Active Publication Date: 2019-11-01
CHENGDU TIEDA ELECTRONICS CORP
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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 provide a combined Type varistor, the varistor changes the structure of the ordinary varistor, and combines the gas discharge element, so that the varistor not only solves the defect of long response time of the discharge tube during use , and there will be no freewheeling problem. At the same time, when there is a large surge in the circuit, the varistor can also better protect the circuit. The varistor is easy to install and low in cost.

Method used

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  • Combined varistor
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Examples

Experimental program
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Effect test

Embodiment 1

[0054] The combined piezoresistor of this embodiment is used in a protection circuit.

[0055] Combined varistors such as figure 1 , figure 2 with image 3 As shown, it includes a chip 1 and a gas discharge element 2 electrically connected to the chip 1. The chip 1 includes a first electrode surface 11 for connecting lines, and a second electrode surface 11 arranged on the opposite side of the first electrode surface 11. Two electrode surfaces 12 and a third electrode surface 13, the second electrode surface 12 and the third electrode surface 13 form a height difference with the first electrode surface 11, the input end of the gas discharge element 2 is electrically connected to the second On the electrode surface 12 , its output end is merged into the connection circuit electrically connected to the third electrode surface 13 .

[0056] When the combined varistor of the present embodiment is in use, connect the pin 3, including connecting the first pin 31 on the circuit w...

Embodiment 2

[0066] The combined piezoresistor of this embodiment is used in a protection circuit.

[0067] Combined varistors such as Figure 4 , Figure 5 with Image 6 As shown, it includes a chip 1 and a gas discharge element 2 electrically connected to the chip 1. The chip 1 includes a first electrode surface 11 for connecting lines, and a second electrode surface 11 arranged on the opposite side of the first electrode surface 11. Two electrode surfaces 12 and a third electrode surface 13, the second electrode surface 12 and the third electrode surface 13 are separated, the input end of the gas discharge element 2 is electrically connected on the second electrode surface 12, and its output end into the connection line electrically connected to the third electrode surface 13 .

[0068] As one of the implementations, the cross-sectional shape of the chip 1 of this embodiment is circular, and the chip is made into a cylindrical structure. A first electrode surface 11 is provided at on...

Embodiment 3

[0075] The combined piezoresistor of this embodiment is used in a protection circuit.

[0076] Combined piezoresistor, including a chip and a gas discharge element electrically connected to the chip, the chip includes a first electrode surface for connecting lines, and a second electrode arranged on the opposite side of the first electrode surface surface and the third electrode surface, the second electrode surface and the third electrode surface are separated, the two form a height difference with the first electrode surface, the input end of the gas discharge element is electrically connected to the second electrode surface, Its output end merges into the connection line electrically connected to the third electrode surface.

[0077] As one of the implementations, the chip of this embodiment has a rectangular structure, specifically a rectangular thin plate shape, the first electrode surface is provided on one of the plate surface directions, and the second electrode is pro...

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Abstract

The invention relates to the technical field of varistors, and in particular to a combined varistor, which comprises a chip and a gas discharge element connected to the chip, wherein the chip comprises a first electrode surface for accessing a line, and a second electrode surface and a third electrode surface arranged on opposite sides of the first electrode surface; height differences are formedbetween the second electrode surface and the third electrode surface and the first electrode surface; and the input end of the gas discharge element is connected to the second electrode surface and the output end is connected to a connection line connecting the third electrode surface. According to the varistor disclosed in the invention, through changing the structure of a common varistor and combining the gas discharge element, the varistor solves the defect of slow response of a discharge tube and no afterflow problem happens during the using process, and besides, when large surge occurs inthe circuit, the varistor can also perform better protection on the circuit, and the varistor is convenient in installation and low in cost.

Description

technical field [0001] The invention relates to the technical field of piezoresistors, in particular to a combined piezoresistor. Background technique [0002] As a safety device, varistors are suitable for circuit and electrical protection, especially widely used in low-frequency power circuits. However, the use in some high-frequency power supply circuits is limited, due to the existence of the inherent capacitance of the varistor, resulting in high-frequency bypass. In the circuit protection of the high-frequency circuit with higher requirements, the combination of discharge tube and piezoresistor is mostly used. [0003] The main factor affecting the static capacitance of the varistor is the area of ​​the two electrode plates of the varistor. The existing production process of the varistor cannot break through the existence of its inherent capacitance. In the production process, the varistor has two electrode surfaces arranged in parallel, and both electrode surfaces m...

Claims

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Application Information

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IPC IPC(8): H01C1/14H01C1/16H01C7/00H01C7/10H01C7/12H01C13/00
CPCH01C1/14H01C1/16H01C7/001H01C7/10H01C7/12H01C13/00
Inventor 张治成叶磊詹俊鹄石小龙章俊龚述娟
Owner CHENGDU TIEDA ELECTRONICS CORP