Guarded Coaxial Cable Assembly for Narrow Window Gap Routing
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Solution Overview
Problem
Coaxial cables face challenges when passing through narrow spaces between windows and doors, including deformation, damage from impacts, and maintaining signal integrity, particularly in transporting RF signals and DC currents while making sharp bends and withstanding repeated operations.
Innovation Solution
A guarded coaxial cable assembly featuring a micro-coaxial cable and adjacent rail or bumper members that can deform to fit through confined spaces and maintain signal quality, using a flat cableway with protective materials and conductive rails to absorb loads and prevent compression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a 7 mm coaxial cable is used to maintain signal quality, then RF signal transmission is improved, but the cable cannot pass through narrow window/door gaps of approximately 3 mm
Solution Approach 1:
The cable system is segmented into two parts: a flexible micro-coaxial cable (3-4 mm diameter) for passing through narrow gaps, and a larger 7 mm coaxial cable for main signal transmission. The micro-cable connects to the larger cable via connectors, allowing the system to navigate narrow spaces while maintaining RF signal quality through the larger cable portion.
2Reliability
If a 7 mm coaxial cable is passed through narrow spaces, then signal transmission is possible, but the cable suffers deformation and damage from window/door operation impacts
Solution Approach 1:
The micro-coaxial cable is enclosed in a flexible protective jacket that allows it to bend and deform elastically when subjected to compression from window or door operation. This flexible protection enables the cable to absorb impact forces without permanent deformation or damage to the internal conductors.
Solution Approach 2:
The cable assembly includes protective elements positioned beforehand to cushion against anticipated impacts from window and door operation. The flexible jacket and routing configuration provide pre-established protection that absorbs compression forces before they can damage the cable conductors or degrade signal transmission.
3Adaptability or versatility
If the cable is routed through window/door gaps, then building modification is avoided, but the cable experiences repeated compression and deformation from operation
Solution Approach 1:
The cable assembly is designed with dynamic characteristics that allow it to move and deform elastically in response to repeated compression from window and door operation. The flexible micro-coaxial cable can dynamically adjust its position and shape within the confined gap, absorbing operational stresses while maintaining electrical connectivity and signal transmission reliability.
Data Source
AI summary
A guarded coaxial cable assembly provides at least one bundled electrical cable with first and second concentrically aligned conductors, the bundle encapsulated in a flexible jacket that is abrasion resistant and wherein with respect to a jacket cross-section a height of the jacket is smaller than a width of the jacket.