Sliding Rotary Hinge Assembly for Concealed Foldable Terminals
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Solution Overview
Problem
In foldable mobile terminals, the exposure of a rotation shaft compromises user handling and appearance performance due to increased overall size and visibility.
Innovation Solution
A rotation connection component comprising a first base, a second base, and a connection clamp that allows for rotational connection between the two bases, enabling the foldable mobile terminal to switch between unfolded and folded states without exposing the rotation shaft, utilizing a guide rail and locking mechanisms for stability and secure sliding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a rotation shaft is used to connect two folding portions, then the mobile terminal can be folded to reduce size, but the rotation shaft is exposed which affects appearance performance and user handling
Solution Approach 1:
The connection clamp is nested within the first base and second base structures. The clamp's connecting portion fits into凹槽 (recesses) formed by the guide rails on both bases, allowing the rotation mechanism to be concealed within the overall structure rather than exposed externally, thus improving appearance while maintaining folding functionality
2Volume of moving object
If a rotation shaft is used to connect two folding portions, then the mobile terminal can be folded to reduce size, but the exposed rotation shaft affects user holding comfort
Solution Approach 1:
The connection clamp and rotation mechanism are nested within the base structures, eliminating exposed mechanical parts that could interfere with user grip. The entire rotation assembly is concealed within the housing contours, providing a smooth surface for comfortable holding
3Shape
If a connection clamp with sliding mechanism is used, then the rotation shaft can be concealed, but the structure becomes more complex
Solution Approach 1:
The connection clamp integrates multiple functions into a single component: it provides rotational connection between bases, incorporates sliding movement along guide rails, includes locking capability through limiting blocks, and conceals the rotation mechanism. This merging reduces the number of separate parts and simplifies the overall structure despite the enhanced functionality
4Stability of the object's composition
If guide rails and locking mechanisms are added to the connection clamp, then structural stability is improved, but the device complexity increases
Solution Approach 1:
The guide rails are integrated directly onto the surfaces of the first and second bases, eliminating the need for separate guide structures. The limiting blocks are incorporated as integral features of the connection clamp, providing automatic mechanical stopping without additional locking mechanisms. This integration maintains stability while minimizing structural complexity
Data Source
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AI summary
Disclosed in the present invention is a rotary connection assembly, comprising: a first base, a second base, and a connection support, wherein the second base is rotatably connected to the first base by means of the connection support; the connection support is slidably connected to the first base; the rotary connection assembly has an unfolding state and a folding state; under the folding state, the connection support slides into the first base; and under the unfolding state, at least part of the connection support slides from the first base, and the second base rotates for a preset angle with respect to the first base.