Battery Module Cooling Member With Recessed Bottom Plate Heat Path
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Solution Overview
Problem
Existing battery modules face challenges in efficiently dissipating heat generated by battery cells while maintaining a simple structure and ensuring impact resistance, as complex heat dissipation structures increase manufacturing costs and vulnerability to external impacts.
Innovation Solution
A battery module design featuring a cell frame with a cooling member composed of metal first and second members, where the second member is recessed in the bottom plate and exposed through heat dissipation holes, along with a thermally conductive resin layer for efficient heat transfer and secure fixation, simplifies the structure and enhances impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a complex heat dissipation structure with multiple heat dissipation tubes and holder portions is used, then cooling performance is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the cooling function and impact protection function into a single integrated case structure. The case directly contacts the battery cell and performs both heat dissipation and shock absorption, eliminating the need for separate holder portions and complex heat dissipation tube assemblies. This merging of functions reduces structural complexity while maintaining effective cooling.
Solution Approach 2:
The case is designed to serve multiple functions simultaneously: it provides structural support, dissipates heat through integrated heat dissipation portions, and protects against external impacts. By making the case multi-functional, the patent eliminates the need for additional specialized components, thereby reducing overall device complexity.
2Temperature
If a complex heat dissipation structure with multiple components is used, then cooling performance is improved, but ease of manufacture deteriorates
Solution Approach 1:
The case integrates heat dissipation portions directly into its structure, allowing the cooling function to be achieved without assembling multiple separate heat dissipation components. This reduces the number of manufacturing steps and assembly operations required, thereby improving ease of manufacture.
3Device complexity
If only holder portions are used to secure battery cells, then device complexity is reduced, but reliability under external impact deteriorates
Solution Approach 1:
The case merges the protective function with the structural housing, creating an integrated impact protection system. The case directly contacts the battery cell and absorbs external impacts, providing reliable protection without requiring separate complex holder assemblies.
4Temperature
If additional heat dissipation components are added, then cooling performance is improved, but device complexity increases
Solution Approach 1:
The case is designed as a multi-functional component that provides structural support, heat dissipation through integrated portions, and impact protection. By consolidating these functions into a single component, the patent reduces the total number of parts while maintaining effective heat dissipation performance.
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
The solution enables rapid heat dissipation and improved structural integrity, reducing manufacturing complexity and vulnerability to external impacts, while maintaining efficient heat transfer and secure fixation of battery cells.
Implementation Method 1
a cooling member (200) located in the space portion (S)... configured to dissipate heat generated from a battery cell
Implementation Method 2
a second member (220) connected to one end of the first member (210), and a part of the second member (220) is recessed in the bottom plate (120)
Implementation Method 3
along with a thermally conductive resin layer for efficient heat transfer
Data Source
AI summary
A battery module having a cooling function includes a plurality of battery cells, a cell frame, and a cooling member. The cell frame includes a plurality of side plates and a bottom plate connecting lower edges of the side plates to each other, a space portion to receive the battery cells, and a cooling member located in the space portion. The cooling member encloses a part of an outer surface of each of the battery cells and includes a first member located in a longitudinal direction of the battery cell and a second member connected to one end of the first member A part of the second member is recessed in the bottom plate. A method of manufacturing the battery module and a battery pack including the same are also provided.