Coaxial Plug Connector Sealing via Segmented Tensioning Sleeve
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Solution Overview
Problem
Existing coaxial plug-in connector systems, such as QMA, are not adequately protected from external influences like water or moisture due to restrictive conditions in the contact region, particularly by the tensioning sleeve and axially displaceable actuating sleeve, which hinder effective sealing.
Innovation Solution
Incorporating one or more seals within the tensioning means, such as an O-ring in an annular groove between the contact sleeve and the through-hole of the female plug-in connector, or on the tensioning sleeve itself, to create a reliable seal in the contact region without altering the contact geometry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a tensioning sleeve and actuating sleeve are used in the QMA connector system, then rapid plug-in and detachment without screwing operation is achieved, but the contact region is not adequately protected from external influences like water or moisture
Solution Approach 1:
The connector is divided into distinct functional zones: a contact region for electrical connection and a sealing region with an O-ring seal. The tensioning sleeve and actuating sleeve are positioned in the sealing region, while the contact region remains accessible and sealed by the O-ring between the contact sleeve and through-hole, allowing rapid operation while protecting contacts from moisture
Solution Approach 2:
An O-ring seal acts as an intermediary element between the contact sleeve and the through-hole of the female connector. This seal creates a barrier that protects the contact region from external influences like water or moisture, while allowing the tensioning and actuating sleeves to function in the sealing region without compromising contact integrity
Data Source
AI summary
A coaxial plug-type connector arrangement includes two plug-type connectors, which can be plugged one inside the other so as to latch in along a plug axis. Each plug-type connector includes a housing that extends in the direction of the plug axis and acts as an outer conductor. The housing has a drilled through-hole in which an inner conductor contact is held in insulated fashion with a coaxial arrangement. A coaxial contact sleeve is formed on the housing of the first plug-type connector, with which contact sleeve the plug-type connector enters the second plug-type connector so as to make contact when the two plug-type connectors are plugged one inside the other. A detachable tensioning sleeve for prestressing the two plug-type connectors with respect to one another in the plugged-in state is provided on the second plug-type connector.