Battery Pack Holder Case Fixing Ribs Vibration Protection
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Solution Overview
Problem
Existing battery packs lack effective protection against vibration, shock, and drops, which can lead to battery cell displacement and electrical connection issues, compromising durability and safety.
Innovation Solution
The battery pack incorporates fixing ribs and a holder case with guide grooves and protrusions to securely position battery cells and manage connecting wires, preventing lateral movement and ensuring electrical connections remain intact under external stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery cells are mounted in a case without fixing structures, then the battery pack structure is simple, but the battery cells are vulnerable to vibration, shock, and drops causing displacement and connection issues
Solution Approach 1:
The holder case is segmented into multiple functional components: fixing ribs for securing battery cells, guide grooves for wire management, and protrusions for positional guidance. This segmentation allows each component to perform its specific function independently, improving reliability without creating a monolithic complex structure.
Solution Approach 2:
Multiple protective functions are merged into a single holder case structure. The fixing ribs, guide grooves, and protrusions are integrated into one unified component that simultaneously provides mechanical support, vibration resistance, and wire management, reducing overall structural complexity while improving durability.
2Reliability
If fixing ribs and guide grooves are added to the holder case, then protection against vibration and shock is improved, but the manufacturing complexity increases
Solution Approach 1:
The holder case is designed with pre-formed fixing ribs, guide grooves, and protrusions that are integrated during the molding process. This preliminary action of incorporating all protective features into the base structure eliminates the need for separate assembly steps, reducing manufacturing complexity despite the enhanced protective functions.
3Reliability
If wire management structures (guide grooves and protrusions) are implemented, then electrical connection stability is improved, but the device complexity increases
Solution Approach 1:
The holder case serves multiple functions simultaneously: it provides mechanical support for battery cells, manages wire routing through guide grooves, and secures electrical connections. This multi-functionality reduces the need for separate wire management components, maintaining simplicity while improving electrical connection stability.
Data Source
Figure 1A
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Figure 1C
AI summary
A battery pack having improved durability and safety has fixing ribs in a holder case mounted on a plurality of battery cells to fix the battery cells and a lead wire. The battery pack may comprise a battery holder, a plurality of battery cells in the battery holder, one or more connecting tabs for connecting the battery cells to one another, a protection circuit module and a wire extending from each of the one or more connecting tabs for connecting the tab to the protection circuit module, wherein the battery holder comprises a plurality of fixing members each arranged to engage with respective ones of the battery cells to hold them in position and to receive and hold the wires from the one or more connecting tabs.