Replaceable Battery Case Layout for Cell Stack Clearance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing replaceable batteries face inefficiencies in space utilization due to the need to position the cell stack away from fastening members, limiting the available space for other components.
Innovation Solution
A replaceable battery design featuring a case with L-shaped members that fasten overhanging regions, allowing the cell stack to be positioned closer to one side plate without interference, thereby creating space for additional components like a battery monitoring apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cell stack is arranged distant from the fastening member to prevent interference, then the reliability is improved, but the space efficiency in the case deteriorates
Solution Approach 1:
The fastening members are positioned in the spatial region above the cell stack rather than adjacent to it, utilizing the vertical dimension to resolve the conflict between preventing interference and maximizing space efficiency. This allows the cell stack to be arranged closer to side plates while maintaining reliable fastening.
Solution Approach 2:
The case is divided into multiple members (side plates, top plate, bottom plate) with fastening members selectively positioned only in regions that do not interfere with the cell stack. This segmentation allows optimal arrangement of the cell stack while maintaining structural integrity through strategic fastening.
2Volume of moving object
If the cell stack is arranged close to one side plate to improve space efficiency, then the space efficiency is improved, but the risk of fastening member interference with the cell stack increases
Solution Approach 1:
Different regions of the case have different fastening arrangements: regions above the cell stack have fastening members, while regions adjacent to the cell stack do not. This local differentiation allows the cell stack to be positioned close to side plates for space efficiency while preventing interference through selective fastening placement.
Data Source
AI summary
A replaceable battery including: a cell stack; and a case for accommodating the cell stack, in which the case includes: a first member having an L-shaped cross section that includes a bottom plate for supporting the cell stack; a second member having an L-shaped cross section that is arranged to face the first member; a first lid part for closing one opening part of the main body part; and a second lid part having a connector for closing the other opening part of the main body part, and in which the cell stack is arranged closer to a side plate of the first member, the case has a spatial region above the cell stack, and a region of the side plate of the first member overhanging the spatial region and a top plate of the second member are fastened together with a fastening member.