Threaded Post Coaxial Connector Installation
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Solution Overview
Problem
Existing coaxial cable connectors face difficulties in installation, particularly with stiff or mini cables, as they require excessive force, which can damage the cable, and rely on inadequate interference fits between the collar, cable sheath, and braided mesh.
Innovation Solution
A coaxial cable connector with a threaded post that engages between the cable braid and dielectric layer, allowing for installation via a twisting motion, which reduces the risk of damage and enhances the interference fit using a helical thread on the post.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If excessive force is applied to force the post under the braid of stiff cable, then the cable connector can be installed, but the cable may be damaged or buckled
Solution Approach 1:
The cable end is pre-prepared by cutting and stripping the outer jacket and braid to expose the dielectric layer before connector installation. This preliminary preparation creates the proper receiving structure for the threaded post, eliminating the need to force the post under the braid during installation and preventing cable damage
Solution Approach 2:
The traditional mechanical pushing/forcing action is replaced with a threading/screwing action. The threaded post engages with the dielectric layer through rotational threading rather than linear forcing, distributing the installation force over a longer distance and preventing cable buckling or damage
2Reliability
If traditional interference fits are used between the collar and cable sheath, then the connector structure is simple, but the fitment is inadequate for difficult cables
Solution Approach 1:
Instead of relying on a single interference fit between the collar and cable sheath, the invention creates multiple localized interference zones: the threaded post engages the dielectric layer with helical threads, the collar engages the cable sheath, and the compression ring engages the outer jacket. Each component provides localized securement at the appropriate position along the cable
3Ease of operation
If the threaded post engages the cable between the braid and dielectric layer, then installation is easier and safer, but the engagement position is more difficult to achieve precisely
Solution Approach 1:
The cable end is pre-prepared by cutting and stripping the outer jacket and braid to expose a precise length of dielectric layer before connector installation. This preliminary preparation creates the proper receiving structure for the threaded post, ensuring accurate engagement position without requiring difficult precision during the actual connector installation
Solution Approach 2:
The dielectric layer serves as an intermediary engagement surface between the threaded post and the conductive braid. The threaded post engages this non-conductive intermediate layer, which provides a precise engagement position while protecting the conductive braid from direct contact and potential damage during installation
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 threaded post design facilitates easier and safer installation of coaxial cables by distributing the force and improving the interference fit, effectively addressing the issues of cable damage and fitment in both 75 ohm and 50 ohm industries.
Implementation Method 1
at least one helical thread on the first end of the post, wherein the at least one thread assists in moving the post, with a twisting motion, between a braided layer of a coaxial cable and a dielectric layer of the coaxial cable
Data Source
AI summary
A compression-type coaxial cable connector includes a post with at least one helical thread thereon. A typical coaxial cable includes a dielectric layer and a cable braid. The threaded post engages the coaxial cable between the cable braid and the dielectric layer, and can be installed by screwing the threaded post into the coaxial cable end.