Foldable Hinge Sliding Assembly for Unfolded-State Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hinge mechanisms in foldable electronic devices experience shaking when subjected to slight external forces in the unfolded state, affecting the reliability of the device structure and user experience.
Innovation Solution
The hinge mechanism incorporates a design with increased lap amounts in the sliding assemblies, utilizing perpendicular and angled sliding grooves and rotating members to enhance stability, and includes features like rollers and accommodating grooves to reduce friction and prevent collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional hinge mechanism with a single sliding groove is used, then the structure is simple, but the hinge mechanism shakes when subjected to slight external force in the unfolded state
Solution Approach 1:
The single sliding groove is segmented into two sliding grooves (first sliding groove and second sliding groove) that are disposed at different locations and orientations. The first sliding groove extends in a first direction while the second sliding groove extends in a second direction that is angled relative to the first direction. This segmentation provides multi-directional constraints on the slider, preventing shaking movements while maintaining reasonable structural complexity.
Solution Approach 2:
The sliding grooves are arranged in different spatial dimensions and orientations. The first sliding groove is disposed at a first location while the second sliding groove is disposed at a second location, with their extension directions forming an angle. This multi-dimensional arrangement creates a more rigid constraint system that eliminates shaking in the unfolded state.
2Reliability
If the sliding groove is made longer to increase lap amount, then the shake phenomenon is reduced, but the device size increases
Solution Approach 1:
Instead of extending the sliding groove in a single direction, the solution uses two sliding grooves disposed at different locations and orientations. The first sliding groove extends in a first direction and the second sliding groove extends in a second direction at an angle to the first direction. This multi-dimensional arrangement increases the effective lap amount and stability without proportionally increasing the overall device volume.
Solution Approach 2:
The lap amount requirement is segmented into two separate sliding grooves rather than one long groove. Each groove can be optimized independently for length and orientation, allowing the system to achieve sufficient total lap amount while minimizing the volume occupied by the sliding assembly.
Data Source
AI summary
A hinge mechanism and an electronic device are provided. The hinge mechanism includes a main shaft, a mounting bracket, a rotation support member, and a sliding assembly. The mounting bracket is rotatably connected to the main shaft through the rotation support member. The sliding assembly is located between the main shaft and the mounting bracket. The sliding assembly includes a slider and a rotating member. One end of the slider is rotatably connected to the main shaft, and the other end is slidably connected to the mounting bracket through a first sliding groove. One end of a first rotating member is rotatably connected to an end that is of a first slider and that is away from the main shaft, and the other end is slidably connected to a first mounting bracket through a second sliding groove.