Battery Module Frame and Heat Sink Integration for Heat Dissipation
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Solution Overview
Problem
Conventional battery modules face challenges in effectively dissipating heat generated during charging and discharging, leading to accelerated battery cell deterioration, shortened lifespan, and increased risk of explosion or ignition, especially in high-temperature environments.
Innovation Solution
The proposed battery module incorporates a module frame with a thermal conductive resin layer and a heat sink, where the bottom portion of the module frame forms an upper plate attached to the heat sink, enhancing heat transfer and cooling performance through a simplified and integrated cooling structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a large number of battery cells are stacked to form a battery module, then capacity and output are improved, but heat dissipation becomes more difficult and temperature rises more quickly
Solution Approach 1:
The module frame bottom portion is merged with the heat sink upper plate to form an integrated cooling structure. This integration eliminates the need for separate heat dissipation components and creates direct thermal contact between the battery cell stack and the refrigerant flow passage, enabling efficient heat removal while maintaining high power output from multiple stacked cells
Solution Approach 2:
The bottom portion of the module frame serves multiple functions: it provides structural support for the battery cell stack, acts as the upper plate of the heat sink, and forms part of the refrigerant flow passage structure. This multi-functionality enables effective heat dissipation without adding extra components that would increase device complexity
2Temperature
If a complex cooling structure with separate heat transfer member and heat sink is used, then cooling performance can be achieved, but device complexity increases
Solution Approach 1:
The module frame and heat sink are merged into a single integrated component where the bottom portion of the module frame forms the upper plate of the heat sink. This eliminates the need for separate heat transfer members and reduces the number of assembly steps while maintaining effective cooling performance
Solution Approach 2:
The module frame bottom portion is designed to simultaneously provide structural support and heat dissipation functions. By making the frame itself serve as the heat sink structure, the design eliminates redundant components and simplifies the overall device architecture
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 improves cooling performance, enhances rigidity against vibration and impact, prevents refrigerant leakage, and extends the lifespan of battery cells, while also reducing the risk of thermal-related issues.
Implementation Method 1
a thermal conductive resin layer located between the bottom portion of the module frame and the battery cell stack
Implementation Method 2
a heat sink located below the bottom portion of the module frame
Data Source
AI summary
A battery module includes a battery cell stack in which a plurality of battery cells are stacked, a module frame for housing the battery cell stack, a thermal conductive resin layer located between a bottom portion of the module frame and the battery cell stack, and a heat sink located below a bottom portion of the module frame. The bottom portion of the module frame has an upper plate of the heat sink, and an avoidance portion for exposing one end of the bottom portion of the module frame is formed at one end of the heat sink.