Air-cooled cooling system for battery pack

Abstract

The invention provides an air-cooled cooling system for a battery pack. The air-cooled cooling system comprises a system shell and battery cell modules, wherein the system shell adopts a cuboid-shaped structure; main air intake passages are formed on the axis of the shell; one end of each main air intake passage is connected with an air inlet; a plurality of battery core module accommodating cavities are arranged at two sides of each main air intake passage; every two battery core module accommodating cavities are symmetrically arranged by taking the corresponding main air intake passage as an axis; each battery core module comprises a battery core shell and a plurality of battery cell groups; each battery cell group is composed of four battery cells arranged in the form of 2*2; a plurality of second passages are formed in each battery core shell; each second passage corresponds to the axial center of the corresponding battery cell group. Therefore, sufficient and uniform cooling can be guaranteed; the bottom-up cooling manner is more suitable for the air convection principle; the generation possibility of turbulence is low; cooling is more uniform.

Description

technical field [0001] The invention relates to a cooling system, in particular to an air-cooled cooling system for a battery pack. Background technique [0002] Electric vehicle power batteries will seriously affect the performance and life of the battery cells in a high temperature environment, so the thermal management of the battery pack is very important. [0003] Nowadays, the most commonly used cooling methods for the thermal management of electric vehicle power batteries are mainly liquid cooling and water cooling. In the cooling process of air cooling, due to the structure of the box body and the structure of the battery module module, the horizontal air direction cooling method is generally used, which is easy to form. The turbulent flow and the cooling air cannot fully contact and evenly cool each battery cell, which will lead to problems such as insufficient cooling and uneven cooling in the battery system, which will affect the working efficiency and life of the...

AI Technical Summary

Problems solved by technology

[0003] Nowadays, the most commonly used cooling methods for the thermal management of electric vehicle power batteries are mainly liquid cooling and water cooling. In the cooling process of air cooling, due to the structure of the box body and the structure of the battery module module, the horizontal air direction cooling method is generally used, which is easy to form. The turbulent flow and the cooling air cannot fully contact and evenly cool each battery cell, which will lead to problems such as insufficient cooling and uneven cooling in the battery system, which will affect the working efficiency and life of the battery system.

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