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Battery thermal management and thermal safety protection device based on vibration strengthening

A safety protection device and battery thermal management technology, which is applied in secondary batteries, battery temperature control, circuits, etc., can solve the problems of poor spread suppression ability and unsatisfactory temperature uniformity effect, and achieve good thermal runaway warning ability and simple structure Effect

Active Publication Date: 2020-06-19
CHINA UNIV OF MINING & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is also worth noting that under normal conditions, the above thermal management methods can control the temperature rise of the power battery to a certain extent, but the temperature uniformity effect is not ideal, and the ability to suppress the spread of local thermal runaway induced by abnormal factors is poor

Method used

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  • Battery thermal management and thermal safety protection device based on vibration strengthening
  • Battery thermal management and thermal safety protection device based on vibration strengthening
  • Battery thermal management and thermal safety protection device based on vibration strengthening

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0033] Such as Figure 1 ~ Figure 2 As shown, the embodiment of the present invention provides a battery thermal management and thermal safety protection device based on vibration reinforcement, including a battery module 1 , a battery lower box 2 , a capillary pump 3 , an upper cover 4 and a condenser 5 .

[0034] The battery lower box 2 has a non-conductive liquid working medium, and the liquid working medium immerses the battery module 1 to ensure uniform temp...

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Abstract

The invention provides a battery thermal management and thermal safety protection device based on vibration strengthening. The device comprises a battery module, a battery lower box body, an upper cover plate and a condenser. The battery module is formed by connecting a plurality of battery monomers in series and packaging the battery monomers in a sealing shell, an interlayer is arranged at the top of the sealing shell, and a sublimation material with high thermal conductivity and high latent heat is packaged in the interlayer; a non-conductive liquid working medium is arranged in the batterylower box body, and the battery module is immersed by the liquid working medium; the upper cover plate is arranged at a top end of the battery lower box body; vibration amplifiers are arranged on twoopposite side walls of the condenser, and the condenser is connected with the battery lower box body through an air guide pipe and a liquid return pipe. According to the device, the problems of temperature control, temperature equalization and thermal runaway spreading inhibition of a power battery are effectively solved, and the device has good thermal runaway early warning capability.

Description

technical field [0001] The invention relates to the technical field of power battery thermal safety, in particular to a battery thermal management and thermal safety protection device based on vibration reinforcement. Background technique [0002] The development of new energy vehicles is an important measure for the automotive industry to save energy, reduce emissions, alleviate environmental problems, and achieve sustainable development. However, the thermal sensitivity of power batteries and thermal safety issues seriously restrict the further development of new energy vehicles. On the one hand, too high temperature and uneven temperature distribution will reduce the cycle life, battery life and power performance of the power battery; on the other hand, too high temperature is an important cause of thermal runaway, which can release The large energy causes the heat to spread rapidly, causing the whole vehicle to catch fire and explode, which brings great safety hazards to...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/617H01M10/625H01M10/6569H01M10/659H01M10/63
CPCH01M10/613H01M10/617H01M10/625H01M10/6569H01M10/659H01M10/63Y02E60/10
Inventor 赵佳腾吴晨辉饶中浩周寿斌姜庆海吴战宇
Owner CHINA UNIV OF MINING & TECH
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