Cable Retention Assembly for Head Mounted Display
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Solution Overview
Problem
Head mounted displays (HMDs) connected via data and power cables lack effective cable retention and strain relief, leading to potential disconnection and damage from tensile and torsional loads during use.
Innovation Solution
A cable retention assembly with a receptacle and retaining clip secures the cable connector, providing strain relief by reacting axial and torsional loads, thereby isolating the circuit board connectors from these forces and maintaining a stable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable retention assembly is added to secure the cable connector, then the reliability of the connection is improved, but the device complexity increases
Solution Approach 1:
The cable retention assembly merges multiple functions into a single integrated structure. The receptacle and retaining clip are combined into one assembly that simultaneously provides mechanical support, strain relief, and cable retention, thereby improving connection reliability without proportionally increasing overall device complexity
Solution Approach 2:
The cable retention assembly acts as an intermediary component between the cable connector and the front display module housing. This intermediary structure absorbs and manages tensile and torsional loads, protecting the electrical connection while adding only one additional component layer to the existing assembly
2Object-affected harmful factors
If strain relief is provided to react axial and torsional loads, then the cable protection is improved, but the structural complexity increases
Solution Approach 1:
The cable retention assembly segments the load management function from the electrical connection function. The retaining clip specifically handles axial and torsional loads through its resilient engagement, while the receptacle provides structural support, allowing each component to be optimized for its specific protective function without unnecessary complexity
Solution Approach 2:
The retaining clip utilizes flexible, resilient material properties to provide strain relief. The clip portion can elastically deform to absorb tensile and torsional forces while maintaining continuous engagement with the cable connector, providing cable protection through material flexibility rather than complex mechanical structures
Data Source
AI summary
Cable retention assemblies for use with head mounted displays are disclosed herein. In various embodiments, a head mounted display has a front display module containing a circuit board operatively coupled to the displays and having a first connector. A connection cable with a second connector is releasably connected to the first connector. A cable retention assembly attached to the front display module adjacent to the first connector has a cable receptacle releasably engaging the second connector and retaining the second connector in a substantially fix position relative to the first connector to substantially isolate the first connector from axial or torsional loads applied to the cable.