Battery Module Cooling Structure With Sensing Board Flow Openings
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Solution Overview
Problem
General battery cell modules have lower cooling efficiency due to the presence of the sensing board on the inflow or outflow path of the coolant, which interferes with the coolant flow between battery cells in immersion cooling systems.
Innovation Solution
A battery module cooling structure with flow openings in the sensing board and bus bar allows coolant to flow optimally between battery cells, featuring first and second flow openings in the bus bar and sensing board, respectively, to enhance cooling performance and reduce temperature differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the sensing board is disposed on the inflow or outflow path of the coolant, then the battery module structure is simplified and sensing function is integrated, but the cooling efficiency is reduced due to flow interference
Solution Approach 1:
The sensing board is segmented into multiple sections: a first sensing board portion with flow openings for coolant passage, and a second sensing board portion for electrical connections. This segmentation allows the sensing board to both simplify the module structure by integrating sensing functions and maintain cooling efficiency by providing dedicated flow paths through the flow openings.
2Ease of manufacture
If the sensing board blocks the coolant flow path, then the manufacturing process is simplified, but the coolant flow rate between battery cells is reduced
Solution Approach 1:
The sensing board is designed with different local properties: the first sensing board portion contains flow openings to maintain coolant flow rate, while the second sensing board portion provides electrical connection functionality. This local quality differentiation allows the manufacturing process to be simplified with an integrated sensing board while preventing reduction in coolant flow rate through strategic opening placement.
3Productivity
If flow openings are added to the sensing board, then cooling efficiency is improved, but the sensing board structure becomes more complex
Solution Approach 1:
The sensing board is designed as a multi-functional component that simultaneously serves as a structural element, a sensing platform, and a coolant flow guide. The flow openings in the first sensing board portion enable cooling efficiency improvement, while the integrated design maintains rather than increases overall structure complexity by combining multiple functions in a single component.
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 maximizes cooling performance efficiency by ensuring even coolant flow and increased heat dissipation, effectively reducing temperature differences between battery cells and improving overall cooling efficiency.
Implementation Method 1
a battery module housing storing the battery module, wherein the battery module is configured by assembling a plurality of battery cells... a cooling channel, and a coolant (or dielectric thermal fluid) for direct cooling
Implementation Method 2
the cooling channel may be disposed between the battery cells, thereby implementing the direct cooling through a coolant flow
Data Source
AI summary
Provided is a battery module cooling structure, in which a battery module is configured by assembling a plurality of battery cells, the structure comprising: a battery module housing storing the battery module; and a sensing board assembly fastened to an end of an end plate disposed on an outermost side of the battery module, disposed to extend in a stacking direction of the plurality of battery cells, and having a flow opening for allowing a coolant to flow between the plurality of battery cells.