Connector Shielding Sleeve With Friction-Fit Contact Modules
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Solution Overview
Problem
Existing electrical connectors face complexity in manufacturing and unreliable electrical contact between the contact sleeve and the outer housing due to the need for spot-welding, which complicates production and may not ensure good electrical contact.
Innovation Solution
A housing assembly for electrical connectors featuring a shielding sleeve and contact sleeve modules that are frictionally engaged, eliminating the need for welding, with components made of conductive materials like metal or conductive plastic, and utilizing projections and recesses for secure frictional engagement and improved electrical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spot-welding is used to connect the contact sleeve to the outer housing, then electrical contact is achieved, but manufacturing complexity increases and reliability is not always ensured
Solution Approach 1:
The patent replaces the welding process (thermal/mechanical system) with a friction-based mechanical connection system. The contact sleeve is connected to the outer housing through friction engagement between the contact section and the housing, eliminating the need for spot-welding equipment and processes while ensuring reliable electrical contact through direct mechanical contact of conductive surfaces.
2Ease of manufacture
If frictional engagement is used to affix the contact sleeve module, then manufacturing is simplified and assembly is easier, but electrical contact reliability must be maintained
Solution Approach 1:
The patent changes the physical parameters of the contact section by providing it with an electrically conductive coating or using electrically conductive material. This ensures that the frictional engagement surface also serves as an electrical contact surface, maintaining electrical conductivity while enabling simple friction-based assembly without welding or additional fastening steps.
3Reliability
If the shielding sleeve and contact sleeve module are made of metal, then electrical contact is ensured, but weight increases
Solution Approach 1:
The patent employs composite material structures where the shielding sleeve and contact sleeve modules use plastic materials that contain metal and/or are electrically conductive. This allows the components to maintain electrical conductivity for reliable contact while significantly reducing weight compared to solid metal construction. The composite structure combines the electrical properties of metal with the weight advantages of plastic.
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
Simplifies assembly, ensures reliable electrical contact, and reduces manufacturing complexity while providing effective electromagnetic shielding.
Implementation Method 1
the at least one contact sleeve module is affixed in the shielding sleeve in a frictionally engaged manner when in the assembled state
Implementation Method 2
the shielding sleeve and at least one contact sleeve module of the housing assembly can be made of metal, for example steel, copper or aluminum, in order to ensure reliable electrical contact
Data Source
AI summary
A housing assembly for an electrical connector having a shielding sleeve made of electrically conductive material. The shielding sleeve includes a central receptacle that axially penetrates the shielding sleeve for receiving at least one shielded cable. At least one contact sleeve module made of electrically conductive material is inserted into the central receptacle. The at least one contact sleeve module has at least one passage opening for the at least one shielded cable and is provided with at least one contact section for contacting a shielding of the at least one shielded cable and is frictionally affixed in the shielding sleeve when in the assembled state.