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An immersion cooling power battery pack, immersion 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 , the effect of short heat transfer path

Active Publication Date: 2022-07-22
TIANJIN ENERGIES
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  • Abstract
  • Description
  • Claims
  • Application Information

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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  • An immersion cooling power battery pack, immersion cooling method and vehicle
  • An immersion cooling power battery pack, immersion cooling method and vehicle
  • An immersion cooling power battery pack, immersion 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", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified 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 therefore 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 construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or impl...

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Abstract

The invention provides an immersion cooling power battery pack, an immersion cooling method and a vehicle. The power battery pack includes a battery box, and a plurality of beams are arranged side by side in the battery box, and the beams connect the inner space of the battery box. It is divided into several accommodating cavities, and battery modules are arranged in the accommodating cavities; the side wall of the battery box is surrounded by two relatively parallel first side walls and two relatively parallel second side walls, so The beam and the second side wall are parallel to each other; a gap is left between the two ends of the beam and the first side walls on both 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 provided on each of the second side walls. Compared with liquid cooling, the immersion cooling system proposed by the present invention has a shorter heat transfer path, larger cooling area and higher cooling efficiency, and can exert better cooling effects from the perspective 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. When the temperature is high, 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(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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