Foldable Hinge Assembly for Precise Synchronous Housing Motion
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Solution Overview
Problem
Conventional folding terminal products face issues with complex components and degraded synchronous movement performance due to multi-stage gears, affecting user experience.
Innovation Solution
A folding assembly with a simplified rotating mechanism featuring a small number of components and a symmetrical, staggered layout of shafts, utilizing hole-shaft cooperation for precise synchronization of housing movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multi-stage gears are used to transfer motion in the rotating mechanism, then the housing can be folded or unfolded, but the synchronous movement performance is degraded and the structure becomes complex
Solution Approach 1:
The patent removes the complex multi-stage gear transmission mechanism from the rotating mechanism, extracting only the essential motion transfer function. The simplified design uses direct mechanical connection between the first and second housings through a rotating assembly, eliminating unnecessary intermediate gears while preserving the folding and unfolding functionality.
Solution Approach 2:
Instead of using gears to transfer motion from one housing to another, the patent inverts the approach by having the rotating mechanism directly couple the two housings through a shared rotation axis. The motion is transferred through the rotating assembly itself rather than through intermediate gear stages, simplifying the overall structure.
2Power
If multi-stage gears are used in the rotating mechanism, then motion can be transferred between housings, but synchronous movement performance is degraded
Solution Approach 1:
The rotating mechanism is segmented into distinct functional components: a first housing, a second housing, and a rotating assembly that couples them. Each segment has a specific function, and their coordinated interaction through the shared rotation axis ensures synchronous movement without the cumulative errors that would arise from multiple gear stages.
Solution Approach 2:
The rotating assembly serves multiple functions simultaneously: it transfers motion between housings, maintains synchronous movement, and enables both folding and unfolding operations. This multi-functional design eliminates the need for separate gear mechanisms dedicated to each function, improving reliability through reduced component count.
3Adaptability or versatility
If a large quantity of components is used in the rotating mechanism, then complex motion transfer is achieved, but synchronous movement performance is degraded
Solution Approach 1:
The patent merges the motion transfer function, the folding mechanism, and the synchronization function into a single integrated rotating assembly. This consolidation reduces the total number of components while maintaining the flexibility needed for complex motion transfer between housings during folding and unfolding operations.
Data Source
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AI summary
This application provides a folding assembly and an electronic device. The folding assembly includes a first bracket, a second bracket, and a rotating mechanism. The rotating mechanism includes a fastening structure, a first synchronous arm, a second synchronous arm, and a connecting structure. The first synchronous arm is connected to the first bracket, and is rotatably connected to the fastening structure by using the first shaft. The second synchronous arm is connected to the second bracket, and is rotatably connected to the fastening structure by using the second shaft. The connecting structure is rotatably connected to the first synchronous arm by using the third shaft and is rotatably connected to the second synchronous arm by using the fourth shaft, where the third shaft and the first shaft are spaced from each other, and the fourth shaft and the second shaft are spaced from each other. The first synchronous arm can rotate relative to the fastening structure and drive, by using the connecting structure, the second synchronous arm to rotate relative to the fastening structure, so that the first bracket and the second bracket are folded or unfolded relative to each other. The technical solutions of this application involve a small quantity of components, and can ensure synchronous movement of the two housings in a deformation process. Therefore, user experience is improved.