Waterproof Connector Sealing Member Positional Stability
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Solution Overview
Problem
Existing waterproof connectors with rectangular sealing members are prone to positional deviations, which can reduce their sealing performance due to external interference and improper deformation, especially when connected to mating connectors.
Innovation Solution
A waterproof connector design featuring a ring-shaped sealing member with sandwiched portions on its outer peripheral surface, held by a holding member that prevents circumferential positional deviations and protects the sealing member from external interference, ensuring resilient deformation and maintaining sealing integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sealing member is exposed on the outer periphery of the housing, then the sealing member can be easily installed, but the sealing member may be positionally deviated in a circumferential direction by external matter
Solution Approach 1:
The holding member is pre-installed on the housing to resiliently sandwich the sealing member, creating a preliminary constraint that prevents circumferential positional deviation before connection occurs
Solution Approach 2:
The holding member acts as an intermediary component between the housing and the sealing member, providing resilient support that maintains the sealing member's positional stability without interfering with its sealing function
2Reliability
If the sealing member is a substantially rectangular frame, then it can seal the clearance effectively, but it may not resiliently deform properly when positionally deviated
Solution Approach 1:
The holding member is designed to automatically resiliently sandwich the sealing member when the connector is assembled, providing self-positioning functionality without requiring additional adjustment mechanisms
3Reliability
If external matter interferes with the sealing member, then the sealing member may positionally deviate, but adding protection may increase device complexity
Solution Approach 1:
The holding member combines multiple functions into a single component: it provides resilient support to prevent positional deviation, protects the sealing member from external matter interference, and maintains the sealing member's contact with the housing
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents positional deviations of the sealing member, maintaining the sealing performance and preventing improper deformation, thus ensuring a liquid-tight seal between the connector and the mating device.
Implementation Method 1
a holding member mounted on the housing for resiliently sandwiching the sandwiched portion between the outer peripheral surface of the housing and the holding member
Data Source
AI summary
A waterproof connector (A) includes a housing (10), a sealing member (30) including a ring-shaped seal functioning portion (31) to be fit externally on the housing (10) and sandwiched portions (36L, 36S) projecting along an outer peripheral surface of the housing (10) from the seal functioning portion (31), and a holding member 40 for resiliently sandwiching the sandwiched portions (36L, 36S) between the outer peripheral surface of the housing (10) and the holding member (40) by being mounted on the housing (10). Since the sandwiched portions (36L, 36S) of the sealing member (30) are resiliently squeezed and sandwiched between the outer periphery of the housing (10) and the holding member (40), there is no possibility that the sealing member (30) is positionally deviated from the housing (10) in a circumferential direction.