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Method for producing multiple leading-out terminal positive temperature coeffient PTC thermistor

A positive temperature coefficient, thermistor technology, applied in the direction of a resistor with a positive temperature coefficient, etc.

Inactive Publication Date: 2004-12-15
SHANGHAI CHANGYUAN WAYON CIRCUIT PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, it is difficult for the ordinary two-pin PTC thermistor to meet the above requirements.

Method used

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  • Method for producing multiple leading-out terminal positive temperature coeffient PTC thermistor
  • Method for producing multiple leading-out terminal positive temperature coeffient PTC thermistor
  • Method for producing multiple leading-out terminal positive temperature coeffient PTC thermistor

Examples

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Embodiment Construction

[0013] Such as figure 1 Schematic diagram of the structure of a three-electrode three-terminal PTC positive temperature coefficient thermistor, figure 2 The front schematic diagram of the three-electrode three-terminal PTC positive temperature coefficient thermistor and image 3 As shown in the schematic diagram of the back of the three-electrode three-terminal type PTC positive temperature coefficient thermistor, the front surface of the PTC thermistor tile 10 is coated with two areas of silver paste 11, 12, and the entire area of ​​the back surface is coated with silver paste. Area 13. Two lead-out ends 1 and 2 drawn from the two silver paste areas on the front side, and one lead-out end 3 drawn out from the silver paste on the back side. The lead-out end can also be pins of other forms. After the production is completed, the whole is wrapped with a layer of insulating material, such as epoxy resin or silicone resin. in:

[0014] The resistance between terminals 1 and ...

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Abstract

This invention relates to a process method for a positive temperature coefficient resistor (PTCR) with multiple lead-out ends and its products used in over current, over voltage and over temperature protection elements of electronic circuits. This invented product has three or more electrode regions outgoing three or more than three lead-out ends realizing almost stable current under different environment temperatures for a thermistor and different hold currents under a definite temperature.

Description

technical field [0001] The present invention relates to a method for manufacturing a multi-terminal type PTC positive temperature coefficient thermistor and relates to a method for manufacturing a multi-terminal type positive temperature coefficient thermistor and its products, and the positive temperature coefficient thermistor manufactured by the method The device (abbreviated as PTCR) has three or more electrode areas and leads to three or more leads. Used in overcurrent, overvoltage and overtemperature protection components of electronic circuits. Background technique [0002] PTCR positive temperature coefficient thermistor is widely used in the field of overcurrent, overvoltage and overtemperature protection of electronic circuits due to its good self-recovery performance. Taking over-current protection as an example, when the normal working current passes through the loop, the PTC thermistor only acts as an ordinary resistor, and when the current in the loop exceeds ...

Claims

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Application Information

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IPC IPC(8): H01C7/02
Inventor 钱朝勇张甦周欣山沈十林杨彬
Owner SHANGHAI CHANGYUAN WAYON CIRCUIT PROTECTION CO LTD
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