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Counterflow cooling system for power battery pack and power battery pack

A technology for power battery packs and cooling systems, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as poor controllability, battery burning, and battery overheating.

Active Publication Date: 2020-11-13
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with air cooling, liquid cooling has a better cooling and cooling effect, which can effectively reduce the temperature of the battery. However, the current practical application of liquid cooling technology generally has the problems of low uniformity of heat transfer and poor controllability. Therefore, it often occurs Battery overheating, shortened battery life, and even accidents such as battery burning

Method used

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  • Counterflow cooling system for power battery pack and power battery pack
  • Counterflow cooling system for power battery pack and power battery pack
  • Counterflow cooling system for power battery pack and power battery pack

Examples

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0030] refer to figure 1 , figure 1 It is a structural schematic diagram of a counterflow cooling system for a power battery pack proposed by an embodiment of the present application, and the arrows in the figure indicate the flow direction of the cooling medium. like figure 1 Shown:

[0031] A counterflow cooling system for a power battery pack, comprising a plurality of cooling units 3 arranged in parallel, the cooling units 3 are provided with two sets of staggered c...

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Abstract

The embodiment of the present application relates to the field of battery technology, and specifically relates to a counterflow cooling system for a power battery pack and a power battery pack. The cooling system includes a plurality of cooling units, and a plurality of cooling units are arranged in parallel. The cooling Two sets of staggered cooling passages are arranged in the unit, and the flow directions of the cooling medium in the two sets of staggered cooling passages are opposite. In the present invention, two sets of staggered cooling passages are arranged in each cooling unit, so that the flow direction of the cooling medium in each set of cooling passages is reversed to form a counterflow, so that the cooling effect at both ends of the cooling unit is the same, and the time of one-way cooling is overcome. The disadvantage of gradually increasing the battery temperature caused by the gradual decrease of the cooling capacity along the flow direction; the power battery is cooled by multiple cooling units, and multiple cooling units are arranged in parallel, and the overall arrangement has a compact and modular structure features.

Description

technical field [0001] The embodiments of the present application relate to the technical field of batteries, and in particular, relate to a counterflow cooling system for a power battery pack and the power battery pack. Background technique [0002] New energy vehicles are an inevitable trend in the future development of automobiles. Power batteries, as their power source and key technology, have become the research hotspots of many research and development units. The development of power batteries with light weight, small size and high specific energy has become an important trend, but Accompanying it is the higher heat release intensity in the process of battery work and charging and discharging, ensuring that the battery works in a reasonable temperature range, which has become one of the bottlenecks restricting the development of power battery technology. During the starting and accelerating process of the car, the current changes greatly and the heat release is uneven;...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6556H01M10/6568
CPCH01M10/613H01M10/625H01M10/6556H01M10/6568Y02E60/10
Inventor 杜敏李帅李钢莫政宇唐继国刘洪涛鲍静静孙立成杨伟可汗
Owner SICHUAN UNIV
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