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Alloy-style temperature fuse

A thermal fuse, alloy type technology, used in emergency protection devices, structural parts, electrical components, etc., can solve the problems of poor oxidation resistance and flowability, and the alloy wire composition cannot work normally, so as to improve the overall performance and oxidation resistance. And the effect of excellent flowability and good temperature fusing effect

Active Publication Date: 2008-02-13
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its weldability, oxidation resistance and flow distribution are relatively poor, making the alloy wire components susceptible to interference from the external environment and unable to work normally

Method used

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  • Alloy-style temperature fuse

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Embodiment Construction

[0032] Referring to Fig. 1, the alloy type thermal cutoff of the present invention comprises electrode connecting piece 1, plastic base film 2 and alloy wire 3, is compounded with the plastics of bonding performance higher than and melting point lower than plastic base film on plastic base film 2 Membrane 4, wherein, the electrode connecting piece is made of nickel, copper, aluminum or the alloy that above-mentioned metal forms, and the thickness of electrode connecting piece is 100um in this example, and its surface with plastic base film 2 and plastic upper film 4 is provided with The copper metal layer can improve the welding performance of the electrode connecting piece and the low melting point alloy wire. The plastic bottom film 2 and the plastic upper film 4 are made of PET (polyethylene terephthalate), PBT (polybutylene terephthalate), PC (polycarbonate), ABS (acrylonitrile-butadiene- Styrene copolymer), PS (polystyrene) and other engineering plastic composite material...

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Abstract

An alloy-type temp fuse is composed of electrode connecting piece, bottom plastic film and ally wire prepared proportionally from more than 3 metal elements chosen from IVA family, IIIA family and Va family, transition metal element chosen from IB and IIB family, and P or RE element. Its advantages are high responsive speed, weldability and consistence.

Description

technical field [0001] The invention relates to a temperature fuse for a lithium ion battery, in particular to an alloy type temperature fuse made of more than three metal materials and rare earth element materials. Background technique [0002] In recent years, with the development of communication technology, small portable electronic devices, such as mobile phones and laptop computers, have become more and more popular. Lithium-ion batteries have gradually become the power supply for these small devices due to their series of advantages. However, if the lithium-ion battery is used improperly, such as overcharging or charging current is too large, the temperature of the battery will rise sharply, which may cause dangerous consequences such as explosion and fire. For this reason, various temperature insurance devices, such as PTC thermistors and low melting point alloy fuses, are generally used in the battery block to control the temperature. [0003] PTC (positive tempera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/34H01H85/06H01H85/04H01M50/583
CPCY02E60/12Y02E60/10
Inventor 程堂利刘伟华江文峰
Owner BYD CO LTD
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