Battery Module Sampling Bracket for Simpler Cell Terminal Assembly
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Solution Overview
Problem
Existing battery module assembly processes are complex and costly due to the need for welding wires to conductive sheets and electrode terminals, which complicates production and increases material usage.
Innovation Solution
A battery module design featuring a collection assembly with sampling members connected to electrode terminals, where the sampling members are fixed to a bracket portion, reducing process steps and material usage while enhancing connection strength and toughness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wire is welded to a conductive sheet and an electrode terminal is connected to the conductive sheet for sampling, then information collection is achieved, but the assembly process becomes complicated and costs increase
Solution Approach 1:
The patent combines the wire, conductive sheet, and electrode terminal into an integrated collection assembly where the wire is directly connected to the electrode terminal without requiring a separate conductive sheet and welding process. This merging of components simplifies the assembly process while maintaining the information collection function.
Solution Approach 2:
The patent extracts the unnecessary conductive sheet from the traditional assembly process, eliminating it entirely and directly connecting the wire to the electrode terminal. This removal of redundant components reduces assembly complexity and material usage while preserving the essential sampling function.
2Reliability
If a wire is welded to a conductive sheet and an electrode terminal is connected to the conductive sheet for sampling, then information collection is achieved, but material usage increases
Solution Approach 1:
The patent removes the conductive sheet from the assembly, eliminating unnecessary material usage. The wire is directly connected to the electrode terminal, reducing material consumption while maintaining the information collection capability.
Solution Approach 2:
By merging the wire and electrode terminal into a direct connection, the patent eliminates the need for additional conductive sheet materials, thereby reducing overall material usage while preserving functional reliability.
3Productivity
If the sampling member is connected to the electrode terminal, then process steps are reduced and materials are saved, but connection strength may be compromised
Solution Approach 1:
The patent applies local quality by providing a specific connection structure between the sampling member and electrode terminal that concentrates connection strength at the critical interface. The connection assembly is designed with enhanced local properties to ensure strong bonding while maintaining overall assembly simplicity.
Solution Approach 2:
The patent incorporates preliminary action by pre-configuring the connection structure between the sampling member and electrode terminal during manufacturing, ensuring that the connection is optimized for strength before assembly. This preliminary preparation allows for simplified assembly processes while maintaining strong connections.
Data Source
AI summary
A battery module includes a collection assembly and a plurality of cell units arranged along a first direction. Each cell unit includes a cell and a bracket, the cell includes a cell housing and an electrode terminal. The cell housing includes a body portion and a first sealing portion. The first sealing portion includes a first connection portion. The bracket includes a first portion, the first portion covers a part of the first connection portion, the electrode terminal extends from the first portion. The collection assembly includes a wire and a plurality of sampling members, the wire is connected to each sampling member. At least one bracket includes a second portion, the second portion is connected to the first portion, at least one electrode terminal is disposed at the second portion, the sampling member is connected to the electrode terminal, the sampling member is fixed to the second portion.