Ultralarge current battery short circuit test device

A short-circuit test and current technology, applied in measuring devices, measuring electricity, measuring electrical variables, etc., can solve problems such as explosion, increase in line resistance, battery thermal runaway, etc., to increase contact area, improve contact effect, and increase contact resistance. Effect

Active Publication Date: 2014-04-02
CHINA NORTH VEHICLE RES INST
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Problems solved by technology

The short circuit test simulates the positive and negative poles of the battery cell, module or battery pack being connected by a conductor during use, forming a short circuit, which will cause the battery to generate a large amount of heat in a short time, which will cause the diaphragm to melt and generate an internal short circuit, eventually leading to thermal runaway of the battery. even catch fire or explode
[0003] Therefore, the short-circuit

Method used

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  • Ultralarge current battery short circuit test device

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Embodiment Construction

[0022] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] In order to solve the problems of the prior art, the invention provides a kind of ultra-high current battery short-circuit test device, such as figure 1 As shown, the device includes: a computer control module 1, a data acquisition and control module 2, a vacuum circuit breaker 3, a circuit breaker 4 and a short circuit resistor 5; wherein,

[0024] The computer control module 1 is provided with a human-computer interaction interface for receiving test instructions formulated by the operator according to the test content, and communicates with the data acquisition and control module 2 to realize short-circuit control and data acquisition;

[0025] The data acquisition and control module 2 is connected to the com...

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Abstract

The invention belongs to the technical field of evaluation devices for the safety performance of a battery, and particularly relates to an ultralarge current battery short circuit test device. In the technical scheme, a vacuum pump needs to be started for vacuumizing before a short circuit test, when vacuum degree collected by a data collecting and controlling module achieves the demands, a computer control module sends a switching value command to the data collecting and control module, and a power pump unit of a vacuum breaker starts or closes a short circuit board, wherein the vacuumizing operation is used for preventing the short circuit board from being oxidated during high-temperature contacting and for not increasing the contacting resistance, so the phenomena of oxidation, sparks and arc pulling during the disconnection existing under the aerobic environment in the prior art are avoided; besides, the copper short circuit is made to be sawtooth-shaped, conductive paste is smeared, so the contacting area and the contacting effect are increased; a short circuit resistor is arranged and an air cooling device is arranged, so stable temperature of the resistor in a loop is ensured and the stable resistance value in the loop is ensured.

Description

technical field [0001] The invention belongs to the technical field of battery safety performance test and evaluation devices, and in particular relates to a super-high current battery short-circuit test device, which is used for short-circuit safety test and evaluation of battery cells, modules and battery packs. Background technique [0002] With the acceleration of the industrialization of new energy vehicles and the vigorous development of the energy storage industry, the safety of batteries is the most important factor to be considered in new energy vehicles and energy storage applications. The short circuit test simulates the positive and negative poles of the battery cell, module or battery pack being connected by a conductor during use, forming a short circuit, which will cause the battery to generate a large amount of heat in a short time, which will cause the diaphragm to melt and generate an internal short circuit, eventually leading to thermal runaway of the batte...

Claims

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Application Information

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IPC IPC(8): G01R31/02G01R31/36
Inventor 胡道中佟玉琦陈芬张跃强高洪波佟蕾王发成王子冬宗陆宇陈潇高申徐少禹田崔钧徐春常张京伟房宝元
Owner CHINA NORTH VEHICLE RES INST
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