Shielded Cable Connector With Holding Ferrule
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Solution Overview
Problem
Existing connectors for shielded electric cables are complex to assemble and require fragile shielding to be cut or folded, leading to potential short circuits and difficulties in ensuring reliable electromagnetic protection.
Innovation Solution
A connector design featuring a conductive housing with a holding ferrule that clamps and directly connects the shielding, forming multiple connection areas for mechanical and electrical linkage, reducing the number of elements and simplifying assembly while maintaining electromagnetic protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shielding is cut or folded back to avoid short circuits during assembly, then short circuit risks are reduced, but the shielding becomes more difficult to handle and assembly complexity increases
Solution Approach 1:
The holding ferrule is designed with pre-formed engagement features that guide and secure the shielding in its natural state during assembly, eliminating the need for preliminary cutting or folding operations. The ferrule's structure anticipates the shielding's placement requirements and provides built-in positioning and securing mechanisms.
Solution Approach 2:
The holding ferrule acts as an intermediary component between the shielding and the connector housing, providing a controlled interface that prevents direct contact between shielding strands and conductors. This mediator component manages the shielding's position and electrical isolation without requiring modification to the shielding itself.
2Reliability
If multiple elements are used to ensure reliable mechanical links between shielding and connector components, then connection reliability is improved, but device complexity increases
Solution Approach 1:
The holding ferrule combines multiple functions into a single integrated component: it provides mechanical retention of the shielding, establishes electrical connection between shielding and connector housing, prevents shielding contact with conductors, and provides structural support. This merging eliminates the need for separate retention clips, connection elements, and positioning components.
Solution Approach 2:
The holding ferrule is designed as a multi-functional element that simultaneously performs mechanical fastening, electrical connection, insulation, and structural support functions. This universal component replaces what would traditionally require multiple specialized elements, reducing overall device complexity while maintaining reliability.
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 provides a simplified and reliable method for establishing electrical and mechanical connections between the shielding and the connector housing, enhancing electromagnetic protection and reducing the risk of short circuits, while minimizing the number of components and assembly complexity.
Implementation Method 1
a holding ferrule arranged around said shielding so as to hold said shielding in mechanical connection by clamping and in direct electrical connection with the connector housing
Data Source
AI summary
The invention relates to a connector for a shielded electric cable (1), said shielded electric cable (3) comprising at least one conductor and a shielding (5) that at least partially covers said shielded electric cable (3), said connector (1) comprising a connector housing (7) containing the conductor, the invention being characterized in that said shielding (5) is partially arranged around said connector housing (7), said connector housing (7) being electroconductive, and said connector (1) comprising a holding ferule (11) arranged around the shielding (5) in such a way as to maintain the connection of the shielding (5) to the connector housing (7) both mechanically by means of clamping and also by direct electrical connection. The invention also relates to a method for the assembly of such a connector for a shielded electric cable.