Connector Holder Limits Eccentricity for Sealing
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Solution Overview
Problem
Existing connectors face issues with maintaining the sealing performance over time due to eccentricity between the inserting part and the hole part, leading to deterioration of the sealing member's effectiveness.
Innovation Solution
A connector design featuring a holder with an abutting part that limits relative movement between the inserting part and the hole part, with a gap between the holder and the hole part being narrower than the gap between the bolt and the through hole, ensuring proper alignment and reducing eccentricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the inserting part is inserted into the hole part without a holder, then the assembly is simpler, but the sealing performance deteriorates due to eccentricity
Solution Approach 1:
The holder acts as an intermediary component between the inserting part and the hole part. It includes an abutting part that contacts the wall surface of the hole part to limit relative movement, and a positioning part that fits into a positioning hole to ensure precise alignment. This mediator structure reduces eccentricity without significantly complicating the assembly process.
2Ease of manufacture
If the gap between the bolt and through hole is large, then the assembly is easier to manufacture, but the positioning precision is insufficient
Solution Approach 1:
The positioning function is segmented from the bolt-Through hole connection and assigned to a separate positioning mechanism. The holder includes a positioning part that fits into a positioning hole with a smaller gap, while the bolt-Through hole connection maintains a larger gap for ease of assembly. This segmentation allows each connection to be optimized for its specific function.
3Productivity
If the inserting part is allowed to move freely, then the assembly process is faster, but the sealing performance deteriorates
Solution Approach 1:
The holder is pre-assembled with the inserting part before insertion into the hole part. The positioning part and abutting part are already in place to provide positioning and movement limitation functions. This preliminary action ensures that when the assembly is inserted, the positioning and sealing functions are immediately activated without requiring additional adjustment steps.
Data Source
AI summary
A connector can include a bolt, a housing, a sealing member, and a holder. The housing can include a fixing part having a through hole into which the bolt is inserted, and an inserting part. The fixing part can be fixed to a wall part by the bolt and the inserting part can have a tubular shape that projects from the fixing part to be inserted into a hole part of the wall part. The sealing member can be mounted on an outer surface of the inserting part to seal between the inserting part and the hole part. The holder can include an abutting part that is positioned between an outer surface of the inserting part and the hole part, and the holder can be fixed to a distal end part of the inserting part.