Sealed Connector Housing With Protrusion to Prevent Rattle
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Solution Overview
Problem
Existing connector devices face challenges in achieving a waterproof structure while suppressing rattling between housings and preventing the detachment of sealing members, leading to a complex configuration.
Innovation Solution
A connector device with a protrusion on the outer peripheral surface of the housing body that fills the gap between the housing and the receptacle, allowing the protrusion to contact the sealing member from the front side, thereby suppressing rattling and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing member and retaining member are provided to achieve a waterproof structure, then waterproof performance is improved, but device complexity increases
Solution Approach 1:
The patent combines the sealing member and retaining member into a single integrated component. The sealing member includes an elastic portion that provides both sealing functionality and retaining functionality through its elastic deformation capability, eliminating the need for separate retaining members and reducing overall device complexity while maintaining waterproof performance
Solution Approach 2:
The sealing member is designed to perform multiple functions simultaneously: it provides waterproof sealing through close contact with the receptacle and prevents detachment of terminal fittings through the elastic retention mechanism. This multi-functional design reduces the number of components needed while achieving both sealing and retaining objectives
2Stability of the object's composition
If a retaining member is provided to suppress rattling between housings, then connection stability is improved, but device complexity increases
Solution Approach 1:
The patent integrates the rattling suppression function into the sealing member itself. The elastic portion of the sealing member deformably contacts the terminal fitting, providing retention and stability without requiring a separate retaining member, thus reducing device complexity while maintaining connection stability
Data Source
AI summary
A connector device (10) includes a connector (20) and a mating connector (30) connectable to the connector (20) from front. The mating connector (30) includes a tubular receptacle (33). The connector (20) includes a housing (40) having a housing body (41) to be fit into the receptacle (33), and a sealing member (60) to be held in close contact with the receptacle (33) by being mounted on an outer peripheral surface of the housing body (41). A protrusion (90) for filling a gap between the housing body (41) and the receptacle (33) is provided on the outer peripheral surface of the housing body (41). The protrusion (90) can face and contact the sealing member (60) from a front side.