Battery Module Clamp Portions Insulating Member Integration
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Solution Overview
Problem
Existing battery module electrode designs face challenges in easily and securely combining current-carrying members with insulating members, leading to instability under external forces and potential wobbling.
Innovation Solution
The electrode constituent member incorporates a current-carrying member with a fastener and an insulating member, where the insulating member is integrated between the fastener and the electricity-storage cell, using clamp portions and engagement holes to securely attach the insulating member to the current-carrying member, preventing the fastener from moving into the case and enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the insulating member is temporarily attached to the terminal plate using a bolt and movement restriction member, then the insulating member can be positioned between the terminal plate and electricity-storage cell, but the assembly wobbles easily when external force acts on it
Solution Approach 1:
The insulating member is divided into multiple insulating plates that are stacked together. This segmentation allows the assembly to distribute external forces across multiple layers, preventing wobbling while maintaining the insulating function. The segmented structure provides better mechanical stability compared to a single solid insulating member.
Solution Approach 2:
Multiple insulating plates are nested within each other, with each plate having a slightly smaller dimension than the one below it. This nesting arrangement creates a stepped structure that enhances stability by providing a broader base and distributing loads effectively, preventing the assembly from wobbling under external forces.
2Ease of manufacture
If the insulating member is integrated with the current-carrying member using clamp portions and engagement portions, then the integration is easier and more appropriate, but the structure becomes more complex
Solution Approach 1:
The clamp portions are integrated directly into the current-carrying member as integral structures, eliminating the need for separate fastening components. The engagement portions on the insulating member mate with these clamp portions, creating a unified assembly that is easier to manufacture while maintaining structural simplicity.
Solution Approach 2:
The clamp portions are designed to automatically engage with the engagement portions on the insulating member during assembly. This self-aligning feature eliminates the need for complex fastening operations or additional adjustment steps, making the integration process simpler and more straightforward.
Data Source
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AI summary
An electrode constituent member for a battery module includes a current-carrying member including an internal connection portion relative to a tab-shaped terminal of an electricity-storage cell, and an external connection portion exposed to an outside of the battery module; a fastener member for fastening a member electrically connecting electrodes of a plurality of battery modules to the external connection portion of the current-carrying member; and an insulating member positioned between the external connection portion of the current-carrying member and the electricity-storage cell. In an inner side of the external connection portion, clamp portions receiving the insulating member in between are formed. In the clamp portions and the insulating member, respectively, engagement portions, engaging with each other when the insulating member is received, are formed.