Infiltration type cooling power battery pack, infiltration type cooling method and vehicle

A technology for power battery packs and battery boxes, applied to secondary batteries, battery pack components, circuits, etc., can solve the problem that liquid cooling technology is difficult to further improve cooling efficiency, so as to suppress the spread of thermal runaway and reduce the temperature of modules , high cooling efficiency

Active Publication Date: 2022-05-10
TIANJIN ENERGIES
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Liquid cooling is widely used and the technology is relatively mature. It is a solution with better comprehensive performance at present. However, due to the limitation of heat transfer path and cooling area, it is difficult for liquid cooling technology to further improve the cooling efficiency.

Method used

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  • Infiltration type cooling power battery pack, infiltration type cooling method and vehicle
  • Infiltration type cooling power battery pack, infiltration type cooling method and vehicle
  • Infiltration type cooling power battery pack, infiltration type cooling method and vehicle

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Embodiment Construction

[0050] It should be understood that in the description of the present invention, the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second...

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Abstract

The invention provides an infiltration type cooling power battery pack, an infiltration type cooling method and a vehicle, the power battery pack comprises a battery box, a plurality of cross beams are arranged in the battery box side by side at intervals, the cross beams divide the internal space of the battery box into a plurality of accommodating cavities, and battery modules are arranged in the accommodating cavities; the side wall of the battery box is defined by two relatively parallel first side walls and two relatively parallel second side walls, and the cross beam is parallel to the second side walls; gaps are reserved between the two ends of the cross beam and the first side walls on the two sides, and a first flow channel and a second flow channel are formed along the two first side walls; a liquid inlet close to the first flow channel and a liquid outlet close to the second flow channel are respectively formed in the two second side walls. Compared with liquid cooling, the infiltration type cooling system provided by the invention is shorter in heat transfer path, larger in cooling area and higher in cooling efficiency, and can play a better cooling effect from the perspectives of thermal management and thermal runaway.

Description

technical field [0001] The invention belongs to the technical field of power batteries, and relates to an immersion cooling power battery pack, an immersion cooling method and a vehicle. Background technique [0002] As the main source of power for electric vehicles, power batteries have been rapidly applied and developed. The overall performance of the power battery is significantly affected by temperature. At high temperature, the active material of the battery is enhanced, and an irreversible chemical reaction may occur, causing thermal runaway and causing the vehicle to catch fire and explode. When the temperature difference is large, a local hot zone will be formed, and the high temperature will decay too quickly , resulting in reduced battery cycle life. Therefore, effective control of battery temperature for reasonable heat exchange is the main focus of battery thermal management system design. [0003] At present, air, liquid or phase change materials are mainly us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6567H01M10/658H01M50/249H01M50/289
CPCH01M10/613H01M10/625H01M10/6567H01M10/658H01M50/249H01M50/289
Inventor 刘峰陈保国宋涛彭月猛
Owner TIANJIN ENERGIES
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