Self-Sealing Wire Terminal Structure for Compact Waterproofing
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Solution Overview
Problem
Existing terminal structures for electric wires face challenges with water ingress leading to electric corrosion and increased resistance, requiring larger waterproofing members that limit the size and flexibility of the terminal arrangement.
Innovation Solution
A terminal structure with a joining portion for the core wire and a sealing portion that surrounds the joining portion, featuring an opening for exposure, allowing the core wire to be in close contact with the sealing portion annularly, reducing the need for additional waterproofing members and enhancing flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproofing member is provided to seal the terminal member, then waterproof performance is improved, but the size of the waterproofing structure increases
Solution Approach 1:
The sealing portion is integrated into the terminal member structure itself, merging the sealing function with the terminal member. This eliminates the need for separate waterproofing members while maintaining waterproof performance, thereby reducing the overall size of the waterproofing structure.
Solution Approach 2:
The sealing function is extracted from a separate waterproofing member and incorporated directly into the terminal member through the sealing portion with the opening portion. This extraction allows the terminal member to perform both structural and sealing functions simultaneously, reducing redundant components and size.
2Reliability
If a waterproofing member is provided to seal the terminal member, then waterproof performance is improved, but the number of components increases
Solution Approach 1:
The sealing portion is merged with the terminal member to form an integrated structure. This combination reduces the number of separate components by making the terminal member self-sealing, eliminating the need for additional waterproofing members.
Solution Approach 2:
The terminal member is designed with multi-functionality by incorporating the sealing portion that provides both structural support and waterproof sealing. This universal design allows a single component to perform multiple functions, reducing the total number of parts in the system.
3Adaptability or versatility
If the terminal member is long to accommodate wiring, then wiring flexibility is improved, but sealing at the boundary becomes difficult
Solution Approach 1:
The sealing portion is designed with local quality by providing an opening portion at the specific location where sealing is needed, while the rest of the terminal member maintains its length for wiring flexibility. This localized sealing design allows the long terminal member to be effectively sealed without compromising its adaptability for wire routing.
Data Source
AI summary
The terminal structure includes an electric wire including a core wire and a terminal member attached to the electric wire. The terminal member includes a joining portion to which the core wire is joined and the sealing portion surrounding the joining portion and including an opening portion having the joining portion exposed therethrough. The core wire is joined to the joining portion through the opening portion and is in close contact with the sealing portion annularly around the opening portion.