Battery Pack Heat Exchange Plate Mounting Without Locking Pieces
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Solution Overview
Problem
The existing battery pack assembly process is compromised by the small size and weakness of the position locking piece, leading to skewing and deformation, which affects the flatness and positioning tolerance of the heat exchange plate, thereby impairing the heat exchange effect.
Innovation Solution
A battery pack design where the heat exchange plate is directly fastened onto an upper support plate using a fastening member, eliminating the need for a position locking piece and ensuring stable positioning through mechanical fastening or adhesive methods, with sinking platforms at corners or central regions for enhanced stability and reduced contact area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a position locking piece is used to position the heat exchange plate, then the heat exchange plate can be positioned, but the position locking piece is small in size and prone to skew during production, and is often deformed due to its insufficient strength
Solution Approach 1:
The patent combines the position locking function and the support function into a single integrated upper support plate structure. The upper support plate serves both as a positioning element and a structural support, eliminating the need for separate position locking pieces. This integration resolves the contradiction by providing sufficient strength through the unified structure while maintaining positioning accuracy.
Solution Approach 2:
The patent extracts and eliminates the position locking piece from the assembly, replacing it with a simplified direct fastening structure. The heat exchange plate is directly fastened to the upper support plate without intermediate positioning components, removing the source of the strength and skewing problems while preserving the necessary positioning function.
2Manufacturing precision
If a position locking piece is used to position the heat exchange plate, then the heat exchange plate can be positioned, but flatness and positioning tolerance of the heat exchange plate are adversely affected
Solution Approach 1:
The patent merges the positioning and support functions into the upper support plate, which provides a stable, integrated structure. This unified approach ensures that the heat exchange plate maintains both flatness and positioning stability without the adverse effects caused by separate, weak positioning components.
Solution Approach 2:
By removing the position locking piece entirely and replacing it with direct fastening to the upper support plate, the patent eliminates the source of flatness and positioning tolerance problems while maintaining positioning stability through the robust support plate structure.
3Manufacturing precision
If a position locking piece is used to position the heat exchange plate, then the heat exchange plate can be positioned, but the heat exchange effect is adversely affected
Solution Approach 1:
The patent removes the position locking piece that was causing positioning tolerance issues, which in turn eliminates the adverse effect on heat exchange performance. The direct fastening structure ensures proper positioning without the deformation and skewing problems that compromised thermal contact.
Solution Approach 2:
By integrating the positioning function into the upper support plate structure, the patent ensures stable positioning that maintains optimal thermal contact between the heat exchange plate and battery modules, thereby improving heat exchange effect compared to the separate position locking piece approach.
Data Source
AI summary
A battery pack according to this application includes a lower support; a lower fastening member that is fastened onto the lower support and extending upwards along a height direction; an upper support plate provided above the lower fastening member; and a heat exchange plate directly fastened onto the upper support plate. In the battery pack according to this application, the heat exchange plate is directly fastened onto the upper support plate, which eliminates use of a position locking piece to position the heat exchange plate and ensures that flatness and positioning tolerance of the heat exchange plate are not affected.