Variable-Angle Bending Fixture for Flexible Circuit Board Testing
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Solution Overview
Problem
The existing methods for testing the flexibility of flexible circuit boards require multiple bending fixtures, leading to increased costs due to the need for different fixtures for various bending angles.
Innovation Solution
A bending fixture comprising a base, a rotating member, a pressing plate, and an adjusting assembly that allows the flexible circuit board to be bent to a range of angles from 0 to 160 degrees, with the rotating member and pressing plate designed to securely hold and bend the circuit board, enabling precise angle adjustment and fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple bending fixtures are used to test flexibility at different angles, then the testing capability covers more angle ranges, but the cost and device complexity increase
Solution Approach 1:
The bending fixture is designed with a rotatable pressing plate that can be adjusted to different angles (0-160 degrees), allowing a single fixture to perform multiple testing functions across various bending angles, replacing the need for multiple separate fixtures
Solution Approach 2:
The pressing plate is made rotatable around the bending axis, enabling dynamic adjustment of the bending angle during testing. This dynamic capability allows the same fixture to test different angle ranges by simply rotating the pressing plate to the desired position
2Adaptability or versatility
If multiple bending fixtures are used to test flexibility at different angles, then the testing capability covers more angle ranges, but the cost increases
Solution Approach 1:
A single bending fixture with a rotatable pressing plate serves multiple testing purposes across different angle ranges, eliminating the need to purchase multiple separate fixtures and thereby reducing overall testing equipment costs
Solution Approach 2:
The functionality of multiple angle-specific fixtures is merged into one universal fixture by incorporating a rotatable pressing plate mechanism, allowing one device to replace several and reduce total equipment investment
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces the need for multiple fixtures by allowing a single fixture to test the flexibility of flexible circuit boards across a wide range of angles, thereby decreasing costs and improving efficiency in testing processes.
Implementation Method 1
The rotating member 30 is rotatably connected to the base 10. The second portion 82 of the flexible circuit board 80 is placed on the rotating member 30. When the rotating member 30 rotates, an included angle between the rotating member 30 and the base 10 is changed.
Data Source
AI summary
A structure to apply flexing to an object to test resilience to being bent has a first portion and a second portion. The structure includes a base, a rotating member, a pressing plate, and an adjusting assembly. The base defines first and second receiving grooves, and the second receiving groove receives the first portion. The rotating member on the base is partially received in the first receiving groove. An abutting surface of the rotating member is recessed to form a third receiving groove which receives the second portion. The pressing plate on the base presses against the first portion. The adjusting assembly controls the rotating member to rotate towards the base about a desired angle, thereby causing the second portion to be bent with respect to the first portion.