Battery Module Cooling Layout for Low-Contamination Heat Dissipation
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Solution Overview
Problem
Conventional battery modules face challenges in effective heat dissipation, leading to increased internal temperatures, reduced lifespan, and potential fires or explosions, while existing cooling methods can introduce foreign materials and reduce cooling efficiency.
Innovation Solution
A battery module design featuring stacked battery arrays with a cooling medium flow path and protrusions that vary in number and size to optimize cooling medium flow resistance and circulation, enhancing convection cooling efficiency and preventing external contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If outdoor air is blown and supplied to cool the battery module, then cooling effect is achieved, but foreign materials such as dust may be introduced into the battery module causing short-circuit
Solution Approach 1:
A sealed housing is introduced as an intermediary between the external environment and the battery module. The housing contains a controlled internal atmosphere and prevents foreign materials from entering while allowing heat to be transferred through thermal coupling surfaces, thus mediating between cooling requirements and contamination prevention
Solution Approach 2:
The housing creates a sealed inert environment around the battery module. By isolating the batteries from the external environment, the housing prevents dust and foreign materials from entering the battery compartment while maintaining effective heat dissipation through thermally conductive housing walls
2Temperature
If cooling medium flow path is created between battery arrays, then cooling efficiency is improved, but flow resistance increases due to protrusions
Solution Approach 1:
Protrusions are strategically placed only in specific regions where they provide maximum cooling benefit without excessively increasing overall flow resistance. The local addition of protrusions creates turbulence and enhances heat transfer in critical areas while maintaining acceptable overall flow characteristics
Solution Approach 2:
Rather than adding protrusions throughout the entire cooling path, the invention applies protrusions partially in specific locations where they provide the most benefit. This partial action approach achieves enhanced cooling where needed while minimizing the overall energy loss from flow resistance
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 design improves cooling efficiency by increasing cooling medium circulation and buoyancy, reducing the risk of overheating and external contamination, thereby extending battery lifespan and ensuring safe operation.
Implementation Method 1
a cooling medium flow path therebetween... a cooling medium has a flow direction parallel to the second direction and going from the first end toward the second end
Implementation Method 2
The design improves cooling efficiency by increasing cooling medium circulation and buoyancy
Data Source
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AI summary
A battery module (101, 102, 103, 104, 105) according to an exemplary embodiment of the present invention includes: a plurality of rechargeable batteries (10); a housing (23) incorporating the rechargeable batteries (10); and a plurality of protrusions (18, 35, 36, 45, 55, 56, 57, 65b, 66b, 67b) allowing the rechargeable batteries (10) to be spaced from each other in order to acquire a stable cooling function, wherein the rechargeable batteries (10) are stacked and arranged to form a plurality of battery arrays (12, 13, 14, 32, 33, 34, 42, 43, 44, 52, 53, 54) and the battery arrays (12, 13, 14, 32, 33, 34, 42, 43, 44, 52, 53, 54) stacked in a flow direction of the cooling medium are different from each other in the number of protrusions (18, 35, 36, 45, 55, 56, 57, 65b, 66b, 67b) located between the rechargeable batteries (10).