Cell Retainer Assembly With Grooved Adhesive for Battery Heat Dissipation
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Solution Overview
Problem
Existing battery packs face inefficiencies due to the use of adhesives for retaining cells, which lead to increased manufacturing and servicing costs, as well as reduced heat dissipation and operational capacity, as the adhesive affects neighboring cells during maintenance and replacement.
Innovation Solution
A cell retainer assembly with a cell holder unit featuring first and second members with through holes and grooves, where the adhesive is applied within the grooves to securely retain each cell individually, allowing for efficient retention and maintenance without disturbing neighboring cells and enhancing heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If adhesive is applied to retain battery cells within accommodation space, then cells are securely retained, but heat dissipation of battery cells is reduced
Solution Approach 1:
The accommodation space is divided into multiple individual retention structures (retaining walls and adhesive recesses) for each cell, rather than using a single continuous adhesive layer. This segmentation allows adhesive to be confined to specific locations around each cell, maintaining retention stability while leaving other surfaces exposed for heat dissipation.
Solution Approach 2:
Adhesive is applied locally in specific recesses at the corners or edges of each cell's accommodation space, rather than covering the entire surface. This localized application provides sufficient retention while preserving heat dissipation pathways across the majority of the cell surface area.
2Ease of manufacture
If adhesive is shared among neighboring cells, then manufacturing process is simplified, but servicing cost increases when cell damage occurs
Solution Approach 1:
The continuous adhesive layer is segmented into discrete portions, with each cell having its own dedicated adhesive recesses. This segmentation maintains manufacturing simplicity through automated application while enabling independent cell replacement during servicing, as damaged cells can be removed without disturbing adhesive for neighboring cells.
Solution Approach 2:
Adhesive is extracted from the continuous shared layer and placed into discrete recesses associated with each individual cell. This extraction allows the adhesive to remain simple to apply during manufacturing while enabling easy separation and replacement of individual cells during maintenance without affecting other cells.
3Stability of the object's composition
If continuous adhesive layer is used to retain all cells, then retention is comprehensive, but heat dissipation efficiency is reduced
Solution Approach 1:
The continuous adhesive coverage is segmented into discrete recesses positioned at strategic locations for each cell. This segmentation maintains comprehensive retention by securing each cell at multiple points while creating gaps between adhesive regions that allow heat to dissipate from the cell surfaces.
Solution Approach 2:
Adhesive coverage is concentrated in specific local regions (recesses at cell corners or edges) rather than distributed uniformly across the entire cell surface. This local quality approach ensures comprehensive retention through multi-point attachment while preserving heat dissipation efficiency by leaving the majority of cell surfaces exposed.
Data Source
AI summary
A cell retainer assembly includes a cell holder unit. The cell holder unit includes a first and a second member having a first and a second set of through holes respectively. The first and the second set of through holes is adapted to receive and position a plurality of cells therein. A groove is formed at a first and a second end of the first and second set of through holes. The groove is formed along an internal portion of one of the first and the second set of through holes. The groove has a length lesser than a length of each of the first and the second through holes. Further, the groove is adapted to receive adhesive therein to retain each of the plurality of cells within the first and the second set of through holes.