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Test container of pressure chamber

A technology of pressure chambers and containers, applied to instruments, parts of electrical measuring instruments, measuring devices, etc., can solve the problems of inability to restore the original state measurement data, thermal runaway, etc., to facilitate observation and measurement of data, ensure safety, Guarantee the effect of the test effect

Inactive Publication Date: 2020-06-19
昆山莫帝斯科燃烧技术仪器有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a test container of a pressure chamber to achieve a fully sealed state under a specific volume. In the pressure container, a device is used to induce local thermal runaway or uniform overall thermal runaway of the power battery to solve the existing problems. The problem that the test equipment cannot restore the measurement data of the in-situ state provides a lithium battery thermal runaway trigger test device for battery manufacturers, automobile manufacturers and scientific research institutes to carry out research on battery thermal runaway

Method used

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Such as Figure 1-Figure 3 As shown, a test vessel of a pressure chamber includes a test vessel body 2 with openings at both ends. The opening of the test vessel body 2 is provided with a labyrinth sealing groove 3, a sealing ring 4 and a welding flange 5 at the end of the body. The openings at both ends of the test container body 2 are also provided with end caps 6 for closing the openings. The test container body 2 is provided with a bracket 8 , and the periphery of the bracket 8 is provided with a heating wire 7 .

[0025] The pressure chamber test container can achieve a fully sealed state under a specific volume. In this pressure vessel, the device is used to induce local thermal runaway or uniform overall thermal runaway of the power battery, so as to solve the problem that the existing test equipment cannot restore the original state measurement data. , ...

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Abstract

The invention discloses a test container of a pressure cabin. The test container comprises a test container body, wherein a labyrinth sealing groove, a sealing ring and a body end part welding flangeare arranged at the opening of the test container body, end covers for closing the opening are also arranged at the openings at the two ends of the test container body, a bracket is arranged in the test container body, and a heating wire is arranged at the periphery of the bracket. A comprehensive sealing state under a specific volume is realized; in the pressure container, a device is used for inducing local thermal runaway or uniform overall thermal runaway of the power battery, the problem that existing test equipment cannot restore in-situ state measurement data is solved, and a lithium battery thermal runaway trigger test device is provided for battery thermal runaway research carried out by battery production enterprises, automobile production enterprises and scientific research institutions.

Description

technical field [0001] The invention relates to a pressure chamber test container, in particular to a pressure chamber test container which can realize a fully sealed state under a specific volume. Background technique [0002] The safety accidents of power batteries are mainly characterized by the thermal runaway of the battery pack. The thermal runaway of lithium battery cells occurs in various causes, and there are no more than two forms: local overheating of the battery causes thermal runaway and spreads to other areas, thereby inducing a full-battery failure. Thermal runaway, or, the ambient temperature of the battery is too high, and uniform heating induces thermal runaway of the whole battery. The event scenarios corresponding to local thermal runaway mainly include battery puncture, mechanical extrusion, internal short circuit, thermal runaway of adjacent batteries, local thermal runaway due to convection, heat conduction, or flame, etc.; scenarios corresponding to t...

Claims

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Application Information

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IPC IPC(8): G01R31/385G01R1/02G01R1/04
CPCG01R1/02G01R1/0408G01R31/385
Inventor 王海洋张亚军刘建
Owner 昆山莫帝斯科燃烧技术仪器有限公司
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