Dry-wet separated vertical lithium battery pack liquid cooling type management system and method

Abstract

The invention discloses a dry-wet separated vertical lithium battery pack hot liquid cooling type management system and method. The system comprises one or more groups of vertical batteries and / or battery modules in the battery pack, a battery pack shell and a liquid cooling plate-tube heat exchanger, a micro heat pipe array is transversely attached to the front surface of the battery and / or the battery module; the length of the micro heat pipe array is larger than the width of the battery and / or the battery module, the two ends of the micro heat pipe array are bent, the micro heat pipe arrayattached to the front face of the battery and / or the battery module serves as a heat transfer section, and the bent vertical part is attached to the two side faces to serve as an evaporation section and a condensation section respectively and is also attached to the corresponding battery pack shell. The battery pack shell surrounds the battery pack and is of a closed structure, and a heat conduction partition plate is at least arranged at the position corresponding to the condensation section; the liquid cooling plate-tube heat exchanger is at least correspondingly attached to the outer surface of the heat conduction partition plate and connected with the refrigerating system, and a base plate of the liquid cooling plate-tube heat exchanger is sealed. The system has the advantages of highheat dissipation efficiency, dry-wet separation and liquid leakage prevention.

Description

technical field [0001] The invention relates to a dry-wet separation vertical lithium battery pack liquid-cooled thermal management system and method, belonging to the field of battery pack heat dissipation for electric vehicles. Background technique [0002] The thermal management of lithium battery packs is not only critical to battery life, but also critical to battery safety. [0003] The traditional battery pack thermal management method—air cooling technology not only cannot meet the requirements of the protection level of lithium battery packs, but also due to the large temperature difference between the inlet and outlet of the air cooling system, resulting in a large temperature difference between the battery cells and the battery cells, which will damage the lithium battery Large, so it is basically useless at present. [0004] The traditional thermal management method of lithium battery packs with high protection level generally adopts the liquid cooling mode. At ...

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Problems solved by technology

[0005] In order to solve the problems of high potential safety hazards, low heat dissipation efficiency, and great damage to the battery in the prior art lithium battery pack thermal management system, the present invention proposes a vertical lithium battery pack liquid-cooled thermal management system and method with dry and wet separation

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