Electrical Connector Stabilizer for Vibration-Resistant Wire Retention
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Solution Overview
Problem
Electrical connectors experience violent wire motion due to high vibration exposure, leading to potential wire or terminal breakage and connection failure, with traditional strain reliefs increasing weight and eccentric loads.
Innovation Solution
An electrical connector assembly featuring a housing with axial channels and a stabilizer with support channels and tabs, where the stabilizer is coupled to the housing to secure wire assemblies, reducing wire movement through direct engagement and strain relief.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional strain reliefs are used to reduce wire motion, then wire motion is reduced, but weight increases and eccentric loads are created
Solution Approach 1:
The stabilizer is divided into multiple functional segments: support channels for wire stabilization, tabs for mounting attachment, and gaps for housing reception. This segmentation allows each part to perform its specific function efficiently without requiring a bulky single-component strain relief structure, thus reducing overall weight while maintaining wire motion reduction capability.
Solution Approach 2:
The stabilizer transitions from a traditional linear strain relief approach to a three-dimensional structure with support channels extending along the longitudinal axis. The tabs extend radially outward to provide mounting attachment, creating a multi-dimensional solution that reduces wire motion in multiple directions simultaneously without increasing weight proportionally.
2Reliability
If traditional strain reliefs are used to reduce wire motion, then wire motion is reduced, but eccentric loads increase due to eccentric length
Solution Approach 1:
The stabilizer employs asymmetric positioning of support channels relative to the longitudinal axis, with channels positioned to align with actual wire assembly locations rather than symmetric distribution. This asymmetric arrangement reduces eccentric moments and loads on the connector housing while effectively stabilizing wires, eliminating the need for heavy symmetric strain relief structures that create excessive eccentric loads.
Solution Approach 2:
The stabilizer acts as an intermediary component between the housing and wire assemblies, absorbing and distributing mechanical stresses. The support channels provide a transition zone that reduces wire motion gradually rather than through rigid constraint, minimizing shock loads and eccentric forces transmitted to the housing while still protecting against wire breakage.
3Reliability
If stabilizer support channels align with housing channels to secure wire assemblies, then wire stabilization is improved, but device complexity increases
Solution Approach 1:
The stabilizer integrates multiple functions into a single component: it provides structural support through the hub, stabilizes wires via support channels, attaches to the housing through tabs, and positions itself using gaps that receive housing portions. This multi-functionality eliminates the need for separate strain relief components, mounting brackets, and positioning features, reducing overall device complexity while improving wire stabilization.
Solution Approach 2:
The stabilizer merges the functions of wire support, mounting attachment, and positioning into a single integrated component. The support channels, tabs, and gaps are combined in one piece that attaches directly to the housing rearward end, eliminating the need for multiple separate components and simplifying the overall connector structure while providing comprehensive wire stabilization.
Data Source
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AI summary
An electrical connector assembly (100) includes a housing (120) having a front end (122) and a rear end (124) and including housing channels (126) extending axially from the front end to the rear end for holding a wire assembly (102). The connector assembly includes a stabilizer (104) having a front end and a rear end (154). The stabilizer (104) includes supports (158) extending from the front end with support channels (160) along a longitudinal axis of the stabilizer. The stabilizer is coupled to the rear end (124) of the housing (120) so that the support channels (160) align with the housing channels (126) to accept corresponding wire assemblies therein. A front retaining feature (130) holds the stabilizer to the housing. A rear retaining feature (132) holds the wire assemblies to the stabilizer.