Battery Module Cooling Plate With Vertical Fins
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery modules with cooling plates face insufficient cooling due to their structure, which only addresses the lower ends of battery cells, limiting the overall cooling effect.
Innovation Solution
A battery module design featuring a first metal portion on the upper ends of battery cells and second metal portions extending between them, with a resin insert portion formed by insert molding, enhancing cooling by addressing both ends and spaces between cells, while preventing electrical conduction between adjacent cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a conventional cooling plate structure facing only lower ends of battery cells is used, then the structure is simple, but the cooling effect is insufficient
Solution Approach 1:
The cooling plate is segmented into a first metal portion (base plate) and multiple second metal portions (cooling fins) that extend between battery cells. This segmentation allows the cooling structure to contact multiple surfaces of the battery cells simultaneously, expanding the cooling area without requiring a completely new cooling system design.
Solution Approach 2:
The cooling structure transitions from a two-dimensional plate facing only the lower ends of battery cells to a three-dimensional structure with vertical fins extending between the cells. This adds a vertical dimension to the cooling contact area, significantly increasing the effective cooling surface area while maintaining structural integration.
2Temperature
If second metal portions are disposed between battery cells to expand cooling range, then cooling effect improves, but electrical conduction between cells may occur
Solution Approach 1:
A resin insert portion is introduced as an intermediary material between the metal cooling fins and the battery cells. This resin layer maintains thermal contact for cooling while providing electrical insulation, preventing unwanted electrical conduction between adjacent battery cells through the cooling structure.
Solution Approach 2:
The cooling structure combines metal portions (for thermal conductivity) with resin insert portions (for electrical insulation). This composite material approach allows the cooling plate to simultaneously achieve high thermal performance for cooling while maintaining electrical isolation between battery cells.
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 significantly expands the cooling range and improves the cooling effect, maintaining the structural integrity and preventing electrical conduction issues, thus enhancing the battery module's cooling capacity.
Implementation Method 1
a cooling portion for cooling a plurality of battery cells. The cooling portion includes a first metal portion disposed on another ends of the plurality of battery cells and having an upper surface facing the other ends of the plurality of battery cells, and a plurality of second metal portions extending from the upper surface of the first metal portion to the one ends of the plurality of battery cells and disposed between the plurality of battery cells
Implementation Method 2
since a part of the resin insert portion is provided in the second metal portions by insert molding, conduction between adjacent battery cells is prevented
Data Source
AI summary
A battery pack includes a battery module, a case accommodating the battery module, and a cover covering the case. The battery module includes a plurality of battery cells each having an electrode at upper end, a cell accommodating portion made of resin and accommodating the plurality of battery cells, and a cooling portion for cooling the plurality of battery cells. The cooling portion includes a first metal portion disposed on a side facing a bottom end of each of the plurality of battery cells, a second metal portion extending from the other end facing surface of the first metal portion to the upper ends of the battery cells and disposed between the plurality of battery cells. The cell accommodating portion includes a resin insert portion formed by insert molding at least the other end facing surface of the first metal portion and the plurality of second metal portions.