Battery Module Holding Plates with Coupling Tabs for Assembly
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Solution Overview
Problem
Conventional battery module assembly processes are complex and inefficient due to the need for specialized jigs and expertise to align and secure battery stacks, hindering production efficiency.
Innovation Solution
A battery module design featuring holding plates with tabs and a coupling member that includes projecting portions on an insulating member, allowing for easy assembly without additional jigs, and a configuration that includes a hollow space for gas discharge, reducing weight and improving assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If binding plates and bar-shaped connection members are used to hold the battery stack, then the stack is tightly secured, but the assembly process becomes complicated and production efficiency decreases
Solution Approach 1:
The binding structure is divided into modular components: holding plates with integrated tabs and a coupling member with projecting portions. This segmentation allows each component to perform its function independently while simplifying the overall assembly process, as components can be attached separately without requiring complex jigging or specialized expertise.
Solution Approach 2:
The holding plates include tabs that automatically engage with the coupling member's projecting portions during assembly. This self-aligning, self-securing mechanism eliminates the need for additional binding components or complex assembly procedures, allowing workers to simply place components together without specialized training or equipment.
2Strength
If multiple binding components are used to secure the battery stack, then the structural integrity is improved, but the number of assembly steps increases
Solution Approach 1:
The holding plate integrates multiple functions into a single component: it provides structural support, includes tabs for mechanical connection, and incorporates the coupling member interface. This merging eliminates the need for separate binding plates, connection members, and additional fastening components, reducing assembly complexity while maintaining structural integrity.
Solution Approach 2:
The coupling member serves multiple purposes: it connects holding plates together, provides structural support for the battery stack, and includes projecting portions that enable automatic alignment and attachment. This multi-functionality reduces the total number of components needed while ensuring robust structural integrity.
3Reliability
If conventional binding structures are used, then the battery stack is securely held, but additional jigs are required for assembly
Solution Approach 1:
The holding plates are pre-formed with tabs and the coupling member is pre-formed with projecting portions during manufacturing. This preliminary preparation of alignment features eliminates the need for additional jigs or positioning tools during assembly, as the components are designed to self-align and secure together through their pre-integrated features.
Data Source
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AI summary
A battery pack (470) includes a stack including a plurality of battery cells (50) aligned, holding plates (411R, 411L) respectively provided on side faces of the stack for holding the stack, a coupling member (440) disposed along a direction in which the battery cells (50) are aligned and fixed to the holding plates (411R, 411L) to bind the plurality of battery cells (50), and an insulating member (450) provided between the coupling member (440) and the plurality of battery cells (50). The insulating member (450) includes projecting portions (452a, 452b) disposed adjacent to and along at least one of side faces of the coupling member (440) and projecting toward the coupling member (440).