A battery pack air-cooled cooling system

Abstract

Aiming at the above problems, the present invention proposes an air-cooled cooling system for battery packs, which includes a system housing and a cell module; One end of the passage is connected to the air inlet, and there are several battery module accommodation chambers on both sides of the main air inlet passage, and the battery module accommodation chambers are symmetrically arranged in pairs with the main air inlet passage as the axis; the battery module includes a battery case body and several cell groups, each cell group consists of four cells distributed in the form of 2*2, the cell housing is provided with a number of second channels, and each second channel is connected to the cell The axes of the groups correspond to each other, which can ensure sufficient and uniform cooling. The bottom-up cooling method is more suitable for the convection principle of the air, and it is not easy to form turbulent flow, and the 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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