Battery Bus Bar Layout for Multi-Row Cell Interconnection
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Solution Overview
Problem
Existing battery modules face complexities in connecting multiple battery cells across multiple rows to a single bus bar and in integrating multiple battery modules into a larger battery assembly.
Innovation Solution
The implementation of a bus bar system that allows battery cells in multiple longitudinally aligned rows to be coupled to a single bus bar, enabling enhanced flexibility in connecting multiple battery modules by arranging bus bars to connect battery cells from multiple physical rows in parallel and series configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional bus bars are used to connect battery cells in multiple rows, then each bus bar can only connect cells in a single row, but this results in increased device complexity and difficulty in integrating multiple battery modules
Solution Approach 1:
The bus bar is designed to perform multiple functions: it connects battery cells within a single row while also connecting cells across multiple adjacent rows. This multi-functional design eliminates the need for separate bus bars for each row, reducing the overall number of components and simplifying the integration of multiple battery modules into larger assemblies
2Quantity of substance
If battery cells are arranged in multiple physical rows, then more battery cells can be packed, but connecting them requires more bus bars which increases device complexity
Solution Approach 1:
The invention merges the functions of multiple bus bars into a single bus bar structure. By designing the bus bar with extended connection points that reach across multiple adjacent rows, it combines what would traditionally require separate bus bars into one integrated component, thereby reducing the total number of bus bars needed while maintaining the ability to connect a large number of battery cells
Data Source
AI summary
In one embodiment a battery module having a width and a length includes a plurality of battery cells and a plurality of bus bars. The plurality of battery cells can be arranged in a plurality of physical rows along the length of the battery module. The plurality of bus bars can be located along the length of the battery module and define a plurality of electrical rows. Each bus bar can be electrically coupled to battery cells of more than one physical row. The battery cells of each electrical row can be connected in parallel and the electrical rows can be connected in series.