Bent Connection Part for Compact Rechargeable Battery Pack
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Solution Overview
Problem
Existing rechargeable battery packs face challenges in connecting multiple batteries efficiently without causing short circuits, while maintaining a compact and portable design.
Innovation Solution
A rechargeable battery pack design featuring a connection part that connects first and second electrode terminals through a bent structure with a groove along the boundary, utilizing coverlays and a protective circuit module to ensure safe and efficient electrical connection between batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple rechargeable batteries are connected using conventional connection methods, then electrical connection between batteries is achieved, but the structure becomes complex and the charge travel distance increases
Solution Approach 1:
The connection part integrates both electrical connection and mechanical positioning functions into a single component. The bent structure with groove combines the conductive path for charge flow with the structural element for battery alignment, eliminating the need for separate connection terminals and positioning features.
Solution Approach 2:
The connection part employs a bent structure with a groove instead of a straight rigid connection. This curved configuration allows the connection to follow an optimized path that reduces charge travel distance while accommodating the spatial arrangement of batteries, and the groove provides mechanical guidance for proper battery insertion.
2Power
If batteries are connected in series and/or parallel, then the battery pack provides sufficient power, but the risk of short circuit increases
Solution Approach 1:
The connection part acts as an intermediary element between batteries that enables controlled electrical connection. The groove structure serves as a mediator that guides the contact parts into proper alignment, ensuring that connections are made only at intended points and preventing unintended contact between electrode terminals of different polarities.
Solution Approach 2:
The connection part has differentiated regions: the groove provides mechanical guidance and positioning, while specific contact areas enable electrical connection. This local differentiation ensures that electrical connection occurs only where intended, preventing short circuits while maintaining the desired series/parallel configuration for sufficient power output.
3Volume of moving object
If a compact battery pack design is implemented, then portability is improved, but the space for proper battery connection and insulation is reduced
Solution Approach 1:
The connection part performs multiple functions simultaneously: it provides electrical connection between batteries, mechanical positioning through the groove, and insulation through its material composition. This multi-functionality eliminates the need for separate components for each function, reducing the overall space required while maintaining manufacturability.
Solution Approach 2:
The groove in the connection part creates a nested structure where contact parts are positioned within the groove. This nesting arrangement optimizes space utilization by having components fit within each other, reducing the overall volume of the battery pack while maintaining proper connection geometry and insulation clearances.
Data Source
AI summary
A rechargeable battery pack includes a first rechargeable battery including a first electrode terminal and a first contact part that are on a first upper surface of the first rechargeable battery; a second rechargeable battery including a second electrode terminal and a second contact part that are on a second upper surface of the second rechargeable battery; a first coverlay connected to the first contact part; a second coverlay connected to the second electrode terminal; and a connection part connecting the first electrode terminal and the second contact part. The connection part includes a first part connected to the first electrode terminal and a second part connected to the second contact part. The first upper surface of the first rechargeable battery and the second upper surface of the second rechargeable battery face each other. The connection part is bent such that the first and second parts face each other.