Guarded Coaxial Cable Assembly for Window Gap Compression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing coaxial cables face issues when passing through narrow gaps between windows and doors, such as deformation, signal interference, and damage from repeated impacts, which affect signal quality and integrity.
Innovation Solution
A guarded coaxial cable assembly featuring a micro-coaxial cable and adjacent rails or bumpers that can deform to fit through confined spaces while maintaining signal quality and integrity, allowing multiple 90-degree bends and protecting against compression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a typical 6 to 7 mm diameter coaxial cable is used to pass through the gap between window/door and frame, then the cable can transmit signals effectively, but the cable will be squeezed and damaged due to the narrow gap space
Solution Approach 1:
The cable system is divided into two segments: a flexible extender cable with small diameter (3-4 mm) for passing through the narrow gap, and a rigid main cable with larger diameter (6-7 mm) for stable signal transmission inside the building. The connectors serve as interface elements joining these segments, allowing each to perform its specialized function without compromise
Solution Approach 2:
The extender cable acts as an intermediary element between the narrow gap environment and the main cable system. It absorbs the mechanical stress of fitting through the 3 mm gap while the main cable remains protected inside, transferring both mechanical and electrical functions between the two environments
2Reliability
If a 6 to 7 mm coaxial cable is passed through the window/door gap, then signal transmission is possible, but the cable will be deformed by impact and compression from window/door operation
Solution Approach 1:
The extender cable is designed with high flexibility to dynamically adapt its shape as the window or door operates. It can bend, compress, and deform with the moving parts while maintaining electrical continuity, whereas the main cable remains static and protected in its optimal configuration
Solution Approach 2:
The extender cable uses a flexible construction with smaller diameter and more compliant materials that allow it to withstand repeated compression and impact from window/door operation. This flexibility protects the conductor spacing and impedance characteristics from permanent deformation
3Strength
If the cable diameter is reduced to 3 mm or smaller to fit the gap, then the cable can pass through without damage, but the signal transmission capability is reduced
Solution Approach 1:
The system separates the functions of physical protection and signal transmission into two cable segments. The small-diameter extender cable (3-4 mm) handles the mechanical challenge of fitting through the gap, while the large-diameter main cable (6-7 mm) handles the electrical challenge of high-quality signal transmission over distance
Solution Approach 2:
The cable diameter parameter is optimized differently for each segment: the extender cable uses smaller diameter (3-4 mm) to fit the mechanical constraints, while the main cable uses larger diameter (6-7 mm) to minimize signal loss and maintain transmission quality. Connectors provide the interface where these parameter transitions occur
Data Source
AI summary
Embodiments of a guarded coaxial cable assembly include one or more conductors, one or more rails, and an outer jacket covering these parts, the orientation of the rail and the conductor(s) within the outer jacket operative to limit conductor or conductor jacket deformations such as deformations due to bends and transverse loads when the cable assembly is squeezed between a sash and a jamb.