Bus Bar Non-Through Hole Mounting for Battery Module Terminals
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Solution Overview
Problem
Existing electricity storage modules face challenges in securely mounting bus bars to electrode external terminals without a complex structure.
Innovation Solution
The design involves a bus bar with non-through holes that fit securely over the positive and negative electrode external terminals of adjacent electricity storage devices, utilizing projections and controlled compressive forces to enhance the connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional welding methods are used to connect bus bar to electrode terminals, then connection strength is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent replaces the welding process (thermal/chemical system) with a mechanical pressing system. The bus bar includes pressing portions that, when pressed against the electrode terminals, create strong mechanical connections through friction and deformation without requiring welding equipment or processes.
Solution Approach 2:
The bus bar structure includes integrated pressing portions that automatically engage with the electrode terminals during assembly. The design allows the connection to be established through simple pressing action, where the components themselves facilitate the connection without requiring additional fastening mechanisms or complex assembly procedures.
2Reliability
If complex mounting structures are used to secure bus bar, then connection reliability is improved, but device simplicity is reduced
Solution Approach 1:
The patent merges the connection function and the structural support function into a single integrated bus bar design. The pressing portions are formed as integral parts of the bus bar body, eliminating the need for separate mounting brackets, fasteners, or additional connection components.
Solution Approach 2:
The bus bar serves multiple functions simultaneously: it provides electrical connection, mechanical support, and self-securing through the integrated pressing portions. This multi-functionality reduces the overall number of components needed in the battery module assembly.
Data Source
AI summary
To provide a technology allowing a bus bar to be mounted more strongly on an electrode external terminal using a simpler structure. An electricity storage module disclosed herein includes aligned electricity storage device, and a bus bar. The bus bar has two non-through holes formed at the same surface of the bus bar. A positive electrode external terminal of one electricity storage device of the adjacent two electricity storage devices is fitted in one non-through hole of the two non-through holes, and a negative electrode external terminal of the other electricity storage device of the adjacent two electricity storage devices is fitted in the other non-through hole of the two non-through holes. By this, the bus bar forms the electrical connection between the adjacent two electricity storage devices.