Foldable Screen Hinge Cover Mechanism for Concealing Internal Parts
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Solution Overview
Problem
Foldable screen devices face issues with internal moving parts being exposed due to insufficient overlap between housings and shaft covers, affecting appearance and quality as they thin and develop towards a more compact design.
Innovation Solution
A rotating shaft mechanism with a swing arm and drive mechanism that moves the shaft cover upward, compensating for the gap between the shaft cover and the middle frame, ensuring the internal moving parts remain concealed without increasing the device's thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the foldable screen device is thinned to achieve a more compact design, then the device thickness is reduced and portability is improved, but the overlap amount between the housings and shaft cover becomes insufficient, causing internal moving parts to be exposed when folded
Solution Approach 1:
The shaft cover is transformed from a static component to a dynamic one that can move relative to the rotating shaft base. During the folding process, the shaft cover moves upward along the thickness direction to compensate for the reduced overlap amount, ensuring continuous coverage of internal moving parts while maintaining the thinned device profile
Solution Approach 2:
The shaft cover movement is activated in advance during the folding process before the housings completely overlap. The drive mechanism initiates the shaft cover's upward movement when the foldable screen device enters the folding state, proactively compensating for the insufficient overlap that would otherwise expose internal parts
2Reliability
If a drive mechanism is added to move the shaft cover upward, then the exposure problem of internal parts is solved, but the device complexity increases
Solution Approach 1:
The drive mechanism is designed to serve multiple functions: it drives the shaft cover upward to prevent exposure, simultaneously maintains the thinned device profile, and integrates with the existing folding structure. The first swing arm and drive mechanism work together to achieve both the coverage function and the thinning goal without requiring separate independent systems
Solution Approach 2:
The drive mechanism components are nested within the existing rotating shaft mechanism structure. The first swing arm is rotatably connected to the rotating shaft base and integrates with the housing structure, while the drive mechanism is positioned within the space between the shaft cover and the rotating shaft base, minimizing additional space requirements
Data Source
AI summary
A rotating shaft mechanism, a support apparatus, and a foldable screen device, and relates to the field of foldable screen device technologies. The rotating shaft mechanism includes a rotating shaft base, a shaft cover, a first swing arm, and a first drive mechanism. The shaft cover is located on a back side of the rotating shaft base, the first swing arm is rotatably connected to the rotating shaft base, and the first swing arm can rotate between an unfolded position and a folded position relative to the rotating shaft base. The first drive mechanism is connected between the first swing arm and the shaft cover, and when rotating from the unfolded position to the folded position, the first swing arm drives, by using the first drive mechanism, the shaft cover to move toward the rotating shaft base.