Battery Module Heat Sink Layout for Compact Dual-Side Cooling
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Solution Overview
Problem
Conventional battery modules have low cooling performance due to a small heat transfer area between battery cells and heat sinks, leading to increased temperatures and potential battery abnormalities.
Innovation Solution
The battery module design includes a heat sink with protuberances that increase the contact area with battery cells, allowing for improved heat transfer. Additionally, the busbar is in direct contact with the heat sink, eliminating the need for separate cooling components and minimizing module volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the heat sink and battery cells are disposed perpendicular to each other, then the structure is compact, but the contact area between heat sink and battery cells is small, resulting in low heat dissipation effect
Solution Approach 1:
The patent changes the relative orientation of battery cells from perpendicular to parallel with respect to the heat sink. This dimensional reconfiguration allows the side surfaces of the battery cells to be in tight contact with the heat sink, significantly increasing the heat transfer area while maintaining a compact module volume.
2Temperature
If separate cooling plates and heat transfer members are used to cool the busbar assembly, then the busbar cooling function is achieved, but the overall volume of the battery module is increased and energy density is reduced
Solution Approach 1:
The patent merges the cooling function for both battery cells and busbar into a single integrated heat sink structure. The heat sink simultaneously contacts the side surfaces of battery cells and the bottom surface of the busbar assembly, eliminating the need for separate cooling plates and heat transfer members, thereby reducing overall module volume while maintaining effective cooling for both components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances cooling performance by increasing the heat transfer area and integrating busbar cooling with battery cell cooling, thereby reducing temperature-related issues and maximizing space utilization.
Implementation Method 1
a heat sink (100) having a predetermined area, the heat sink being horizontally located
Implementation Method 2
heat generated from the battery cells 20 and the busbar assembly 30 is removed by the heat sink 10
Data Source
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AI summary
The present invention relates to a battery module with improved cooling performance and a battery pack including the same, and more particularly to a battery module including a heat sink (100) having a predetermined area, the heat sink being horizontally located; a support plate (200) including an upper support plate (210) and a lower support plate (220) located respectively at the upper surface and the lower surface of the heat sink (100); a battery cell (500) including a first battery cell (510) disposed in tight contact with the upper support plate (210) and a second battery cell (520) disposed in tight contact with the lower support plate (220); and a cover plate (600) including an upper cover plate (610) located above the first battery cell (510) and a lower cover plate (620) located under the second battery cell (520), and a battery pack including the same.