Threaded Cable Connector Shielding Braid Current Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional threaded cable connectors fail to effectively dissipate electrical currents from the shielding braid to the housing, leading to potential shielding losses and electromagnetic compatibility issues.
Innovation Solution
A threaded cable connector design featuring a conductive base element with a contact surface that directly connects to the housing, a clamping element to secure the shielding braid, and a radial thread arrangement to minimize deformation and ensure reliable electrical contact, while allowing for radial deformation of the clamping element to accommodate excess braid and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional threaded cable connector is used to hold the cable, then the cable is mechanically secured, but electrical currents from the shielding braid are not effectively dissipated to the housing
Solution Approach 1:
The patent combines the mechanical holding function and electrical current dissipation function into a single integrated base element. The base element simultaneously provides structural support for cable fixation and conductive pathways for dissipating electrical currents from the shielding braid to the housing, eliminating the need for separate components and simplifying the overall connector design.
Solution Approach 2:
The base element is designed to perform multiple functions: it serves as the mechanical foundation for cable securing, provides electrical conductivity for current dissipation, and acts as a mounting interface for the shielding braid. This multi-functional design resolves the contradiction by improving reliability through effective current dissipation while maintaining ease of manufacture through design integration rather than added complexity.
2Reliability
If the clamping element is made rigid to ensure stable electrical contact, then contact reliability improves, but the ability to accommodate excess braid and prevent damage is reduced
Solution Approach 1:
The clamping element's rigidity parameter is changed by using a resilient or flexible material instead of a completely rigid material. This allows the element to maintain stable electrical contact through elastic deformation while simultaneously accommodating variations in braid length and preventing damage to the shielding braid, thus resolving the contradiction between contact stability and damage prevention.
3Reliability
If the base element is made fully conductive to improve current dissipation, then electromagnetic compatibility improves, but the risk of corrosion at contact points increases
Solution Approach 1:
The base element is designed as a composite structure with conductive regions for current dissipation and non-conductive regions for mechanical fastening. This composite design maintains electromagnetic compatibility through the conductive portions while protecting the fastening portions from corrosion, as non-conductive materials are generally more corrosion-resistant. The selective material distribution resolves the contradiction between EMI performance and corrosion resistance.
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 effectively directs electrical currents from the shielding braid to the housing, maintaining electromagnetic compatibility and reducing the risk of damage to the shielding braid during installation, while providing a secure and vibration-resistant connection.
Implementation Method 1
The base element (5) is composed at least in regions of an electrically conductive material in order to be able to produce an electrical connection between the contact surface (9) and the supporting surface (31)
Implementation Method 2
The first clamping element (12) is configured to be resilient in the radial direction and/or to be radially deformable
Data Source
AI summary
An example threaded cable connector for a cable with a conductor and a surrounding shielding braid, comprising a base element, a first tightening nut and a first clamping element is presented herein. The base element includes a base for fastening the base element to a housing and a passage opening for the passage of the cable about which an encircling first thread is oriented. On a side facing away from the housing, the base element has a contact surface encircling the passage opening. The first tightening nut comprises a second thread for operatively connecting the first tightening nut to the first thread of the base element. The first clamping element has a first clamping surface and, in the mounted state, is arranged between the contact surface and the first tightening nut. The first clamping element, in the mounted state, presses the shielding braid against the contact surface.