Battery Pack End Connections for Higher Cell Density
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Solution Overview
Problem
Conventional battery packs have low energy density due to the need for space reservation for high-voltage copper bars and low-voltage sampling wire harnesses between battery cells, limiting available space and overall charge capacity.
Innovation Solution
Integration of high-voltage copper bars and low-voltage sampling wire harnesses into electrical connection components arranged on the ends of battery cells, reducing clearance between cells and enabling automatic mounting, thereby improving energy density and reducing assembly time and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-voltage copper bars and low-voltage sampling wire harnesses are arranged between battery cells, then electrical connection is achieved, but space occupation increases and energy density decreases
Solution Approach 1:
The patent merges the high-voltage copper bar and low-voltage sampling wire harness into a single integrated electrical connection component. This component includes both the high-voltage connection structure and the low-voltage sampling structure, allowing them to occupy the same spatial region and perform multiple functions simultaneously, thereby reducing overall space occupation while maintaining reliable electrical connections.
2Reliability
If space is reserved for copper bars and wire harnesses between battery cells, then electrical connection is ensured, but available space for battery cells decreases
Solution Approach 1:
By combining the high-voltage and low-voltage connection functions into one integrated component, the patent eliminates the need for separate spaces for copper bars and wire harnesses. This integration allows battery cells to be arranged more closely, increasing the number of cells that can fit in the battery pack and thereby improving energy density while ensuring both high-voltage and low-voltage connections are maintained.
3Reliability
If conventional separate arrangement of copper bars and wire harnesses is used, then electrical connection is achieved, but assembly time and cost increase
Solution Approach 1:
The integrated electrical connection component combines the high-voltage copper bar and low-voltage wire harness into a single pre-assembled unit. This allows the entire electrical connection system to be installed as one component rather than requiring separate installation steps for copper bars and wire harnesses, significantly reducing assembly time and labor costs while maintaining reliable electrical connections for both high-voltage and low-voltage circuits.
Data Source
AI summary
The present invention discloses a battery pack and a vehicle. The battery pack comprises a plurality of battery cells and electrical connection components. the plurality of battery cells are arranged side by side; the electrical connection components are arranged on the ends of the plurality of battery cells, and have electrode receiving sockets and FPC receiving sockets arranged thereon, wherein the electrode receiving sockets are adapted to be electrically connected with a plurality of electrode posts of the plurality of battery cells, and the FPC receiving sockets are adapted to be electrically connected with a plurality of FPC corresponding to the plurality of battery cells. In the battery pack, the conventional high-voltage copper bars and low-voltage sampling wire harness are integrated into electrical connection components, and the electrical connection components are arranged on the ends of the battery cells, so as to effectively reduce the clearance between the battery cells, thereby effectively improve the energy density of the battery pack; moreover, the electrical connection components can be mounted automatically, and thereby the assembling time and cost are reduced.