Semi-Flexible PCB Fixture with Segmented Support Gaps
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Solution Overview
Problem
Semi-flexible printed circuit board assemblies (PCBAs) with both rigid and flexible portions face damage during handling and transportation due to the vulnerability of the flexible portions.
Innovation Solution
A fixture with a body having arms and ridges is designed to support both flexible and rigid PCB portions, featuring angled front portions and gaps sized to securely hold the PCBAs, preventing flexing and minimizing damage during handling and transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If semi-flexible PCBAs include flexible PCBA portions to enable non-planar shapes during installation, then adaptability is improved, but the flexible portions are easier to damage during handling and transportation
Solution Approach 1:
The fixture segments the PCBA into two distinct support zones: the first gap supports the flexible PCBA portion while the second gap supports the rigid PCBA portion. This segmentation allows each portion to be supported according to its specific structural characteristics, preventing damage to the flexible portion while maintaining its ability to conform to non-planar shapes during installation.
Solution Approach 2:
The fixture acts as an intermediary device between the flexible PCBA portion and the handling/transportation environment. By providing dedicated support through the first gap with appropriate rigidity, the fixture protects the flexible portion from damage while allowing it to maintain its flexibility for non-planar configuration during installation.
2Reliability
If the fixture provides dedicated support for flexible PCBA portions, then damage resistance is improved, but device complexity increases
Solution Approach 1:
The fixture merges multiple support functions into a single integrated structure. The first arm with the first gap provides support for the flexible PCBA portion, while the second arm with the second gap supports the rigid PCBA portion. Both support functions are combined in one fixture body, simplifying the overall system while providing specialized protection for the flexible portion.
Solution Approach 2:
The fixture is designed with multi-functionality to handle both flexible and rigid PCBA portions simultaneously. The first gap is specifically configured to support flexible portions with appropriate rigidity, while the second gap supports rigid portions, allowing a single fixture to perform multiple support functions without requiring separate specialized devices.
Data Source
AI summary
A fixture and method are directed to releasably couple the fixture to a semi-flexible printed circuit board (PCB)/printed circuit board assembly (PCBA) at a flexible PCB/PCBA portion. The fixture includes a body with a first arm and a second arm extending from a base, an interior surface of the first arm facing an interior surface of the second arm. A first ridge extends from the interior surface of the first arm and defines a first gap between the first ridge and the interior surface of the second arm. The first gap is sized to receive and support a flexible PCB/PCBA portion. At least one second ridge extends from the interior surface of the first arm and defines a second gap between the at least one second ridge and the interior surface of the second arm. The second gap is sized to receive and support a rigid PCB/PCBA portion.