Collapsible Insert Coaxial Connector for Multi-Layer Cable Termination
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Solution Overview
Problem
Standard coaxial cable connectors struggle to efficiently connect coaxial cables with multiple layers of conductive grounding foil and braided shields, such as head end cables, due to their larger diameter, making termination difficult or impossible using conventional methods.
Innovation Solution
A coaxial cable connector design featuring a collapsible insert with a rearward facing shoulder, a weakened portion, a bushing portion, and a forward conducting portion, which is longitudinally compressed to deform and engage the outer conductor, allowing secure connection without forcing the protective layer away from the outer conductor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If standard coaxial cable connectors are used, then typical coaxial cables can be connected, but head end cables with multiple layers of conductive grounding foil and braided shield cannot be connected due to larger diameter
Solution Approach 1:
The insert is designed to change its dimensional parameters through compression - transitioning from an uncompressed state with larger internal diameter to a compressed state with reduced internal diameter, enabling it to accommodate thicker head end cables while maintaining proper contact with the outer conductor
Solution Approach 2:
The connector incorporates a dynamically deformable insert that transitions between uncompressed and compressed states during installation, allowing the internal diameter to adapt from a larger value (accommodating cable insertion) to a smaller value (securing the cable and maintaining electrical contact)
2Ease of operation
If the protective layer is forced away from the outer conductor during connection, then the connector can be installed, but electrical connectivity and signal integrity are compromised
Solution Approach 1:
The insert features a localized gripping surface that applies compression force specifically to the outer conductor at the point of contact, while the rest of the protective layer remains undisturbed and maintains its natural position, ensuring both secure mechanical attachment and preserved electrical integrity
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
Enables reliable and efficient termination of coaxial cables with multiple layers by securely gripping the outer conductor without displacing the protective layer, facilitating easier installation and improved electrical connectivity.
Implementation Method 1
longitudinally compressing the insert, thereby causing the insert to collapse
Implementation Method 2
causing the rear ferrule portion to engage the protective layer, and causing the forward conducting portion to engage the exposed outer conductor
Data Source
AI summary
A connector for coaxial cable is disclosed herein that has an outer body and a collapsible insert. The insert grips the outermost protective layer of the cable when the insert is fully compressed. A related method for connecting the coaxial cable and connector is also disclosed.