Diagonal Battery Cell Holder for Flexible Pack Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery packs with cylindrical secondary batteries require different fixing devices for varying numbers of cells, necessitating multiple designs due to the shape of the cells.
Innovation Solution
A battery cell holder design featuring upper and lower covers that extend diagonally and horizontally, with coupling projections and grooves, allowing for flexible assembly and strong fastening through sloped contact surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different fixing devices are designed for varying numbers of battery cells, then the battery pack can accommodate different configurations, but the device complexity and manufacturing cost increase
Solution Approach 1:
The holder is designed with a universal structure that can accommodate different numbers and configurations of cylindrical battery cells. The parting sides with diagonal extensions and complementary support structures create a standardized interface that works across multiple configurations, eliminating the need for different fixing device designs for different battery arrangements.
Solution Approach 2:
The holder is divided into an upper cover and a lower cover with defined parting sides. This segmentation allows the holder to adapt to different battery cell arrangements while maintaining a consistent overall structure. The modular design with coupling projections and grooves enables flexible assembly for various battery configurations without requiring completely different fixing devices.
2Ease of manufacture
If cylindrical secondary batteries are used, then the battery pack can be formed with standard cell types, but the batteries require additional fixing devices to maintain arrangement
Solution Approach 1:
The holder structure is merged with the battery pack assembly, integrating the fixing function directly into the pack structure. The upper and lower covers with coupling projections and grooves form a unified assembly that both secures the cylindrical battery cells and maintains their arrangement, eliminating the need for separate fixing devices.
Solution Approach 2:
The holder serves multiple functions: it secures the cylindrical battery cells in place, maintains their spatial arrangement, and provides structural support for the battery pack. The parting sides with diagonal extensions and complementary support structures enable this multi-functionality while working with standard cylindrical cell types.
3Strength
If the upper and lower covers are coupled together with diagonal parting sides, then the assembly strength and durability are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The parting sides are designed with diagonal extensions rather than simple horizontal or vertical interfaces. This asymmetric geometry creates complementary support structures that interlock the upper and lower covers, enhancing assembly strength through mechanical interlocking while the specific diagonal angles provide tolerance compensation during manufacturing.
Solution Approach 2:
The coupling projections on one cover are designed to fit into corresponding grooves on the other cover before final tightening. This preliminary action establishes the correct alignment and position of the diagonal parting sides, making the assembly process more forgiving of manufacturing variations and reducing the stringency of precision requirements.
Data Source
AI summary
A battery cell holder for accommodating a battery cell includes: an upper cover configured to extend around an upper portion of a battery cell while exposing a first electrode terminal of the battery cell; and a lower cover configured to extend around a lower portion of the battery cell while exposing a second electrode terminal of the battery cell, the lower cover and the upper cover being coupled to each other. A pair of parting sides of the upper cover and the lower cover that contact each other when the upper cover and the lower cover are coupled together extend diagonally.