Rechargeable Battery Connecting Pole Labyrinth Sealing
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Solution Overview
Problem
Existing connecting poles for rechargeable batteries are heavy due to excessive material usage, which increases weight and cost, and lack efficient material distribution for optimal mechanical stability and sealing.
Innovation Solution
The connecting pole design features a reduced outer circumference in the upper labyrinth section with a conical or hyperboloid outer wall expansion away from the connecting section, allowing for material savings while maintaining mechanical stability, and includes a hollow interior with a conically increasing inner wall to optimize weight reduction and sealing efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the outer circumference of the connecting pole is reduced in the upper labyrinth section, then weight and material usage are reduced, but mechanical stability may be compromised
Solution Approach 1:
The connecting pole features varying outer circumferences along its length, with the upper labyrinth section having a reduced circumference compared to the lower section. This local variation optimizes material distribution - thicker walls where structural support is needed (lower section) and thinner walls where weight reduction is prioritized (upper section), thereby resolving the contradiction between weight reduction and mechanical stability.
2Loss of substance
If material usage is reduced in the connecting pole, then cost and weight are reduced, but sealing efficacy may be compromised
Solution Approach 1:
The labyrinth section incorporates circumferential projections that create sealing chambers with the housing plastic. By strategically placing these projections at critical sealing locations rather than uniformly thickening the entire pole, the design achieves effective sealing with minimized material usage, resolving the contradiction between material reduction and sealing efficacy.
3Stability of the object's composition
If the outer circumference is increased away from the connecting section, then material distribution is optimized for stability, but manufacturing complexity increases
Solution Approach 1:
The transition between different circumference sections is achieved through conical or frustoconical geometries rather than abrupt changes. These smooth transitional surfaces are easier to manufacture using conventional molding techniques compared to complex multi-stage forming processes, thereby optimizing structural stability while minimizing manufacturing complexity.
Data Source
AI summary
A connecting pole for a rechargeable battery is disclosed. The connecting pole (1) has a connecting section (2) in which a pole terminal can be attached to the connecting pole (1). The connecting pole (1) has an attachment section (3) in which the connecting pole (1) can be attached in a housing part (5) of the battery. The attachment section (3) has a labyrinth section (4). The outer wall (6) of the connecting pole (1) has at least one circumferential projection (7, 8) in the labyrinth section (4). The circumference of outer wall (6) of the connecting pole (1) increases in the direction pointing away from the connecting section (2) in a section of the labyrinth section (4) which is not provided with a circumferential projection (7, 8). Also disclosed is a rechargeable battery housing or a part of said rechargeable battery housing having at least one connecting pole.