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Simple acupuncture equipment based on jack

A jack and acupuncture technology, applied in the field of lithium-ion battery safety, can solve the problems of lack of protection measures, expensive acupuncture equipment, thermal runaway, etc., and achieve the effects of easy construction and disassembly, low price, and convenient operation.

Inactive Publication Date: 2018-02-23
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The acupuncture experiment of lithium-ion batteries is one of the methods to cause thermal runaway or even explosion, but the existing acupuncture equipment is relatively expensive
Ordinary universal testing machines can perform acupuncture experiments, but lack corresponding protection measures

Method used

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  • Simple acupuncture equipment based on jack
  • Simple acupuncture equipment based on jack

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Experimental program
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specific Embodiment

[0021] Such as figure 1 As shown, the jack-based simple acupuncture device of the present invention includes: a jack 1 , a support 2 , a needle 3 , and a needle adapter 4 .

[0022] The jack 1 is placed in the groove of the bracket 2, and a corresponding baffle is designed to fix it. The battery 7 is placed on the upper part of the jack 1 by gluing. The needle 3 is connected to the needle adapter 4 through threads, and the needle adapter 4 is threaded through M4. It is fixed on the bracket 2 and fixed by locknuts. Wherein, due to the difference in the acupuncture direction and the type of the battery, the relative position of the needle 3 and the battery needs to be adjusted in real time, which can be adjusted by the extension length of the needle adapter 4 . The lifting in the acupuncture experiment can be carried out by operating the handle 5 to control the lifting of the jack 1 . Considering the generation of toxic gas and spark splashing in the battery acupuncture test, ...

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PUM

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Abstract

The invention discloses simple acupuncture equipment based on a jack; the equipment is applied to multi-angle acupuncture experiments of various sizes of lithium ion batteries, is easy and practical,thus qualitatively describing thermal runaway reactions of the lithium ion battery being acupunctured; a needle head is threaded with a support, thus replacing different lengths, diameters and materials. The acupuncture equipment can be used in an explosion-proof case, is safe and reliable, and provided with an air-discharge system, thus effectively discharging toxic substances.

Description

technical field [0001] The invention relates to a jack-based simple acupuncture device, which belongs to the field of lithium ion battery safety, in particular to a lithium ion battery acupuncture experiment method. Background technique [0002] Lithium-ion batteries are widely used in portable devices, tools and electric vehicles, and have become the most important mobile energy. However, unavoidable overcharge, puncture, overheating and impact will lead to varying degrees of failure of the positive electrode, negative electrode, separator and other components of lithium-ion batteries, resulting in short circuits, resulting in thermal runaway and fire or even explosion. [0003] The difference in the degree of thermal runaway caused by acupuncture experiments can qualitatively evaluate the safety performance of lithium-ion batteries. [0004] The acupuncture experiment of lithium-ion batteries is one of the methods to cause thermal runaway or even explosion, but the existi...

Claims

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Application Information

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IPC IPC(8): G01R31/36G01R1/02
CPCG01R31/36G01R1/02
Inventor 许骏王璐冰刘冰河吴依静
Owner BEIHANG UNIV