Shielded Keystone Punchdown Jack With Integrated Braid Bonding
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Solution Overview
Problem
Current market lacks a cost-competitive, shielded keystone jack with a rear wire cover assembly that effectively connects a shielded cable's braid to the jack's shield and secures conductors, utilizing the punch down style termination method.
Innovation Solution
A keystone style punchdown jack with a rear wire cover assembly featuring a shield wrap that moves perpendicular to the cable axis to enclose it and along the axis to engage the jack, allowing electrical connection and securement of the cable's braid and conductors to the jack's shield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shielded keystone jack with rear wire cover assembly is designed to connect braid to shield and secure conductors, then shielding effectiveness and conductor security are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the rear wire cover assembly with the shield wrap into a single integrated component. The rear wire cover is formed as an extension of the shield wrap, eliminating the need for separate parts and reducing assembly steps while maintaining both shielding effectiveness and conductor security functions
Solution Approach 2:
The shield wrap is designed to perform multiple functions: it provides electromagnetic shielding, secures the cable braid through the rear wire cover assembly, and anchors conductors to the jack's shield. This multi-functional design reduces the number of components needed while achieving reliable shielding and mechanical security
2Reliability
If a rear wire cover assembly is added to enable braid-to-shield connection, then electrical bonding reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The rear wire cover assembly is pre-formed as an integral part of the shield wrap during the molding process. This preliminary formation of the assembly eliminates the need for separate manufacturing and assembly steps for the wire cover, reducing manufacturing complexity while ensuring reliable electrical bonding between the braid and shield
3Object-affected harmful factors
If the shield wrap is designed to move perpendicular to cable axis to enclose cable, then cable enclosure and protection are improved, but device complexity increases
Solution Approach 1:
The shield wrap is designed with flexible movement capability perpendicular to the cable axis, allowing it to dynamically enclose and adapt to the cable during installation. This dynamic design provides effective cable protection and shielding while maintaining ease of assembly through simple snap-fit engagement with the jack housing
Data Source
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AI summary
A rear wire cover assembly for a keystone style punchdown jack has a shield wrap and an opening configured to allow the rear wire cover assembly to move in a direction perpendicular to an axis of a cable such as to partially enclose the cable and also such as to allow the rear wire cover assembly to move along the axis of the cable to engage a rear of the keystone style punchdown jack.