Shield Termination Ring With Extended Member For Vibration Strain Relief
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wire harness termination assemblies in vibration environments suffer from shield braid and wire insulation fatigue due to lack of strain relief between the cable clamp and shield termination ring, leading to excessive movement and potential failures.
Innovation Solution
A shield termination ring with an extended member joined to or integrally formed with a curved cable clamp insert provides additional support between the cable clamp and shield termination ring, reducing fatigue by stabilizing the wire harness in the region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cable clamp and shield termination ring assembly is used without additional support, then the device complexity is reduced, but shield braid and wire insulation fatigue failures occur due to excessive movement in vibration environments
Solution Approach 1:
An extension member is introduced as an intermediary component between the cable clamp and shield termination ring. This extension member provides additional support and reduces excessive movement of the wire harness in vibration environments, preventing shield braid and wire insulation fatigue failures without significantly complicating the overall device structure.
Solution Approach 2:
The extension member extends axially beyond the cable clamp, adding structural support in the axial dimension. This dimensional extension provides the necessary strain relief and movement restriction that prevents fatigue failures, while maintaining a simple linear structure that does not substantially increase device complexity.
2Reliability
If tape wrapping or rubber sleeving is used to prevent harness movement, then shield braid and wire insulation fatigue resistance is improved, but the installation time increases and the solution may not adequately prevent excess flexure
Solution Approach 1:
The extension member is integrally formed with or permanently joined to the cable clamp, creating a self-contained support structure. This eliminates the need for separate installation steps such as wrapping tape or installing rubber sleeving, as the support function is built into the device itself, reducing installation time while maintaining reliability.
Solution Approach 2:
The extension member is merged with the cable clamp through integral formation or permanent joining, combining the support function with the existing cable clamp structure. This integration eliminates the need for separate protective components and simplifies installation, while still providing adequate prevention of excess flexure.
3Ease of operation
If the wire harness and shield termination ring are allowed to move freely, then the ease of operation is improved, but shield braid and wire insulation fatigue failures occur due to excessive movement
Solution Approach 1:
The extension member provides localized support specifically in the region between the cable clamp and shield termination ring, where excessive movement causes fatigue failures. This localized reinforcement maintains ease of operation in other areas while preventing failures only where needed, achieving a balance between operational ease and reliability.
Data Source
AI summary
Methods and devices for providing strain relief in a region between a cable clamp and a shield termination ring of a wire harness termination assembly in a vibration environment. The devices are in the form of a shield termination ring having an extended member joined to or integrally formed with a curved cable clamp insert. The extended member in turn may be joined to or integrally formed with the shield termination ring. The purpose of the extended arm and curved cable clamp insert is to provide support to the portion of the wire harness disposed between the cable clamp and the shield termination ring, thereby reducing shield braid and wire insulation fatigue in that area.