Foldable Screen Hinge Assembly for Flat Panel Support
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Solution Overview
Problem
Existing rotating shaft assemblies in foldable terminals have complex structures with gaps that cause panels to float, affecting the flatness and light and shadow effect of flexible screens.
Innovation Solution
A rotating shaft assembly with a rotatable support mechanism featuring a swing arm, fixed structure, limit part, and support structure, where limit portions abut to constrain movement and prevent floating, ensuring panel stability and flatness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex structure with numerous parts is used in the rotating shaft assembly, then the support function is enhanced, but gaps between movable parts cause panel floating and poor flatness
Solution Approach 1:
The patent combines the support function and limiting function into a single integrated support structure. The support structure includes a support arm rotatably connected to a fixed structure, and a limiting structure that limits the rotation angle of the support arm. By merging these functions into one structure rather than using separate components, the patent reduces the number of parts and eliminates gaps between components while maintaining reliable support and flatness control.
2Ease of operation
If gaps are left between movable parts for rotation, then the rotating function is enabled, but panel floating occurs affecting flatness and light and shadow effect
Solution Approach 1:
The patent employs a dynamic limiting mechanism where the limiting structure includes a limiting ball and a limiting groove. The limiting ball can freely move along the limiting groove during rotation, dynamically adapting to the rotation movement. This dynamic design allows smooth rotation without fixed gaps, while the limiting groove's curvature ensures the panel maintains consistent flatness throughout the rotation range by controlling the support arm's movement trajectory.
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
The solution ensures stable support of panels in unfolded states, maintaining screen flatness and improving light and shadow effects by preventing panel arching and sinking, while allowing smooth folding without additional parts.
Implementation Method 1
the first limit portion abuts against the second limit portion... the second limit portion of the limit part is able to abut against the first limit portion of the swing arm, thereby implementing mutual constraint
Data Source
AI summary
A rotating shaft assembly and an electronic device, where the rotating shaft assembly includes a panel and a rotatable support mechanism. The rotatable support mechanism includes a swing arm, a fixed structure, a limit part, and a support structure. The support structure is provided with a mounting plane, and the panel is fastened to the mounting plane; a first limit portion is formed on the swing arm; and the limit part is connected to the support structure, and a second limit portion is formed on the limit part. When the screen is in a folded state, the limit part is separated from the swing arm. When the screen is in an unfolded state, the second limit portion of the limit part can abut against the first limit portion of the swing arm, thereby implementing mutual constraint between the swing arm and the support structure.