Battery Cooling Assembly Insulation for Uniform Module Temperature
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Solution Overview
Problem
Existing battery modules experience uneven temperature distribution and reduced cooling efficiency due to heat transfer between cooling assemblies and side boards, leading to inconsistent temperatures and potential condensation, which affects safety and stability.
Innovation Solution
The implementation of heat insulation supports that fix cooling assemblies while reducing heat exchange between the cooling assembly and the case, ensuring even temperature distribution and improved cooling efficiency by spacing the cooling assembly from the side board, and incorporating features like positioning protrusions and chamfered grooves for enhanced stability and assembly convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the cooling assembly is fixed directly to the side board of the battery module, then the fixing stability is improved, but heat transfer occurs between the cooling assembly and the side board, leading to uneven temperature distribution and reduced cooling efficiency
Solution Approach 1:
The patent introduces heat insulation supports as an intermediary component between the cooling assembly and the side board. These supports are made of heat insulation material and have fixing grooves that accommodate the cooling assembly while preventing direct thermal contact with the side board, thus eliminating the harmful heat transfer path while maintaining fixing stability
Solution Approach 2:
The fixing structure is segmented into three distinct components: the side board, the heat insulation supports, and the cooling assembly. This segmentation allows each component to perform its specific function independently - the side board provides structural support, the heat insulation supports provide thermal isolation and mechanical fixing, and the cooling assembly performs cooling without being thermally coupled to the side board
2Stability of the object's composition
If the cooling assembly is fixed to the side board, then the fixing stability is improved, but heat exchange between the cooling assembly and the case increases, reducing cooling efficiency
Solution Approach 1:
Heat insulation supports serve as thermal intermediaries that block the heat transfer path between the cooling assembly and the case side board. The supports are specifically designed with heat insulation material to prevent energy loss from the cooling system to the case structure
Solution Approach 2:
The harmful thermal coupling function is extracted from the fixing structure. Instead of having the fixing structure serve both mechanical and thermal functions (which causes energy loss), the design separates these functions: the heat insulation supports provide mechanical fixing while actively preventing thermal coupling, thus extracting the harmful heat transfer path from the system
3Stability of the object's composition
If the cooling assembly is fixed to the side board, then the fixing stability is improved, but condensation on the case occurs and safety is reduced
Solution Approach 1:
The heat insulation supports act as thermal mediators that prevent excessive cooling of the side board by blocking the cold transfer from the cooling assembly. This prevents the side board temperature from dropping below the dew point, thereby eliminating the condensation problem while maintaining secure fixing of the cooling assembly
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 solution achieves more uniform temperature distribution across battery modules, enhances cooling efficiency, prevents condensation, and improves safety and stability by maintaining consistent temperatures, thereby reducing large temperature differences and increasing the reliability of the energy storage device.
Implementation Method 1
heat exchange between the cooling assembly and the case may be reduced by arranging the at least one heat insulation support
Data Source
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AI summary
An energy storage device is provided in the disclosure. The energy storage device includes a case, multiple battery modules, at least one cooling assembly, and at least one heat insulation support. The multiple battery modules are accommodated in the case. The at least one cooling assembly is arranged between the multiple battery modules. The at least one heat insulation support is fixedly connected to the case. The at least one heat insulation support each defines a fixing groove configured to fix one of the at least one cooling assembly. According to the energy storage device in embodiments of the disclosure, by arranging the heat insulation support, heat exchange between the cooling assembly and the case may be reduced while the cooling assembly is fixed. On one hand, cooling effect and cooling efficiency of the cooling assembly may be improved. On the other hand, temperature in certain areas of the case will not be too low, and condensation on the case may be avoided. Therefore, the safety is improved, temperature in certain areas of battery modules will be prevented from getting too low, and temperature in multiple battery cells in a single battery module and temperature in multiple battery modules may be more even.