Cable Retention Frame for Electronic Assembly
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Solution Overview
Problem
In electronic assemblies, electrical cables like coaxial cables often get pinched between enclosure portions during manufacturing, preventing proper seating and causing interference with radio frequency coupling, which affects the assembly's performance and reliability.
Innovation Solution
The use of a frame with arcuate members and longitudinal grooves to securely retain coaxial cables, ensuring they do not interfere with the seating of enclosure portions and maintaining a stable, defined path to minimize electromagnetic coupling and maintain consistent radio frequency characteristics, even under vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrical cable is routed between connector and internal circuitry during manufacturing, then electrical connection is achieved, but cable becomes pinched between enclosure portions preventing proper seating
Solution Approach 1:
The frame is segmented into multiple retainers (first retainer, second retainer, third retainer) that are distributed at different locations along the cable path. Each retainer independently manages cable positioning at critical points, preventing pinching without requiring a single complex constraint mechanism that would interfere with enclosure seating.
Solution Approach 2:
The frame act as an intermediary structure between the cable and the enclosure portions. The retainers on the frame provide intermediate support and positioning for the cable, preventing direct contact and pinching between the cable and enclosure mating surfaces, thus enabling proper enclosure seating while maintaining cable routing.
2Ease of manufacture
If cable is retained by frame with retainers, then cable pinching is prevented and enclosure seating is achieved, but radio frequency coupling may be affected
Solution Approach 1:
The retainers are designed with specific local qualities suitable for their function: the first retainer has a channel for cable routing, the second retainer has a groove for cable positioning, and the third retainer has a recess for cable support. Each retainer's geometry is optimized for its specific location and cable management requirement, providing effective retention while minimizing RF interference through localized, function-specific design.
3Stability of the object's composition
If multiple retainers are used to secure cable, then cable stability is improved, but device complexity increases
Solution Approach 1:
Multiple retainers (first, second, and third retainers) are merged into a single integrated frame structure. The retainers are formed as part of the same frame component rather than being separate parts, which provides distributed cable support and stability while avoiding the complexity of assembling multiple separate retainer components. The frame unifies the cable management function across multiple locations.
Data Source
AI summary
An electronic assembly comprises a circuit board having one or more electronic components mounted on the circuit board. The circuit board has a first side and a second side opposite the first side. The electronic assembly has a lower enclosure and an upper enclosure for mating with the lower enclosure to form a housing to hold the circuit board. A frame overlies the first side or the second side of the circuit board. The frame comprises a first retainer for retaining coaxial cable. The first retainer comprises a first pair of opposing arcuate members extending from the frame.