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Circuit protection assembly with external electrical test points

A circuit protection and test point technology, which is applied to parts, electrical components, and resistors with positive temperature coefficients of electrical measuring instruments. small impact effect

Pending Publication Date: 2017-05-24
SHANGHAI CHANGYUAN WAYON CIRCUIT PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not possible to instantly understand the protective components with positive temperature effect of resistance

Method used

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  • Circuit protection assembly with external electrical test points
  • Circuit protection assembly with external electrical test points
  • Circuit protection assembly with external electrical test points

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] A circuit protection component, comprising the above-mentioned protective element with a positive temperature effect of resistance, which is composed of two metal electrode sheets tightly sandwiched between a polymer-based conductive composite material layer, and also includes: figure 2 as shown,

[0084]First, the copper-clad laminate is used as the substrate of the circuit protection component, and there is a space for accommodating the protection element in the middle. The protective element composed of 210b and having positive temperature effect of resistance is placed in the accommodating space of the base material 232 of the copper-clad laminate, and the semi-cured adhesive layers 233a and 233b are hot-pressed on the base material of the copper-clad laminate 232, then press the copper foil on the prepreg layer, etch the copper foil to form the upper left copper foil 250c, the upper right copper foil 250b and the lower copper foil 250a;

[0085] Second, a protect...

Embodiment 2

[0103] A circuit protection component with an external electrical test point, similar to Embodiment 1, comprising a conductive composite material base layer 320 with a positive temperature effect of resistance, a lower metal electrode 310a and an upper metal electrode 310b with a positive temperature effect of resistance protection elements such as image 3 Shown:

[0104] First, the copper-clad laminate, as the substrate of the circuit protection component, has a space for accommodating protective elements in the middle, and the above-mentioned protective element with a positive temperature effect of resistance is placed on the base material 332 of the copper-clad laminate for accommodation. In the space, the lower semi-cured adhesive layer 333a and the upper semi-cured adhesive layer 333b are thermocompressed on the surface of the base material 332 of the copper clad laminate, and then the copper foil is pressed on the lower semi-cured adhesive layer 333a and the upper semi-...

Embodiment 3

[0109]A circuit protection assembly with an external electrical test point, similar to Embodiment 1, comprising a protective protection with a positive temperature effect of resistance composed of a conductive composite material base layer 420 with a positive temperature effect of resistance, a lower metal electrode 410a and an upper metal electrode 410b components such as Figure 4 Shown:

[0110] First, the copper-clad laminate, as the substrate of the circuit protection component, has an accommodating space for the protective element in the middle, and the above-mentioned protective element with the positive temperature effect of resistance is arranged in the accommodating space of the base material 432 of the copper-clad laminate Inside, the lower semi-cured adhesive layer 433a and the upper semi-cured adhesive layer 433b are hot-pressed on the surface of the copper-clad laminate substrate 432, and then combined with the copper foil, and the copper foil is etched to form a...

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PUM

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Abstract

The invention discloses a circuit protection assembly. The circuit protection assembly comprises a copper-foil-coated laminated plate, a protection element with a resistance positive temperature effect, a conducting part and electrical test points. The protection element with the resistance positive temperature effect is arranged in the copper-foil-coated laminated plate and formed by tightly clamping a polymer-based conducting composite layer between two metal electrode slices, the polymer-based conducting composite layer comprises at least one polymer base material and at least one kind of conducting powder with the electrical resistivity smaller than 100 microohm.cm, and the particle size distribution range of the conducting powder is 0.1 microohm to 50 microohms. The protection element with the resistance positive temperature effect and a protected circuit are electrically connected through the conducting part. The electrical characteristics of the protection element with the resistance positive temperature effect can be detected through the electrical test points. The circuit protection assembly can save the installation space of the circuit protection element and has good detectability and environmental reliability.

Description

technical field [0001] The invention relates to a circuit protection component with an external electrical test point, which belongs to a polymer electronic component, in particular to a protective component with a positive temperature effect of resistance built into a copper-clad laminate, and has an external electrical test point circuit protection components. Background technique [0002] The polymer-based conductive composite material can maintain a low resistance value at normal temperature, and has the characteristics of being sensitive to temperature changes, that is, when an overcurrent or overtemperature occurs in the circuit, its resistance will instantly increase to a high resistance value , so that the circuit is in an open circuit state to achieve the purpose of protecting circuit components. Therefore, the protection element made of the polymer-based conductive composite material can be connected to the circuit as the material of the current sensing element. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C1/01H01C1/148H01C7/02G01R1/04
CPCH01C1/01H01C1/148H01C7/027G01R1/0416
Inventor 杨铨铨刘玉堂范荣方勇吴国臣
Owner SHANGHAI CHANGYUAN WAYON CIRCUIT PROTECTION CO LTD