Thinned Hinge With Crossed Helical Gears For Flexible Screens
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Solution Overview
Problem
Existing hinges for flexible screens face design complexity and assembly challenges due to the need for a torsion assembly, which complicates the folding mechanism.
Innovation Solution
A thinned hinge design incorporating a rotating part with arc-shaped tracks and movable members, coupled with a torsion supply part featuring crossed helical gear structures and torsion springs, allowing for smooth torsion generation without altering the overall design architecture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a torsion assembly is arranged in a hinge structure to improve torsion when the screen is folded, then the torsion requirement is met, but the design difficulty and assembly complexity are greatly improved
Solution Approach 1:
The patent combines the torsion supply function with the existing hinge structure by integrating torsion springs into the rotating shaft assembly. The torsion springs are positioned within the hinge mechanism itself, allowing the hinge to both rotate and supply torsion simultaneously without requiring a separate, independent torsion assembly. This merging approach maintains the necessary torsion supply capability while significantly reducing overall assembly complexity.
Solution Approach 2:
The hinge structure is designed to perform multiple functions: it provides the rotating motion for screen folding and simultaneously generates the torsion force through integrated torsion springs. The rotating shaft serves dual purposes as both the rotation axis and the mounting structure for the torsion springs. This multi-functionality eliminates the need for separate specialized components, thereby reducing design difficulty and assembly complexity while maintaining reliable torsion supply.
2Reliability
If a torsion assembly is added to the hinge, then the torsion required for screen folding is supplied, but the overall design difficulty increases
Solution Approach 1:
The patent merges the torsion supply mechanism with the hinge's rotating shaft structure. The torsion springs are integrated into the shaft assembly, allowing the same component to serve both as the rotation axis and the torsion generation mechanism. This integration simplifies the overall design by eliminating the need for separate torsion assemblies, thereby reducing design difficulty while maintaining reliable torsion supply for screen folding.
Solution Approach 2:
The hinge structure is designed to be self-sufficient, where the rotating shaft itself serves the dual function of enabling rotation and generating torsion through the integrated springs. The system does not require external or separate torsion mechanisms, as the hinge's own structural elements are utilized to provide the necessary torsion force. This self-service approach simplifies manufacturing design by reducing the number of separate components that need to be coordinated.
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 thinned hinge effectively supplies the necessary torsion for folding flexible screens, enhancing the hinge's functionality and assembly simplicity by utilizing crossed helical gear structures and torsion springs, ensuring smooth operation and stability.
Implementation Method 1
the torsion supply part includes two torsion spring sets respectively arranged at one end of each of the two rotating shafts
Implementation Method 2
two gears and the idle gear are crossed helical gear structures
Data Source
AI summary
A thinned hinge includes a rotating part and a torsion supply part. The rotating part includes a base and two movable members arranged on the base, the base includes two tracks for the movable members to displace along arc-shaped trajectories to generate opening and closing actions, and ends of the two movable members where extend outward from the two tracks are provided with driving members. The torsion supply part supplies torsion required by the rotating part, the torsion supply part includes a support, two rotating shafts arranged in parallel on the support, and an idle gear arranged between the two rotating shafts, the two rotating shafts are provided with connecting pieces assembled with the driving members to enable the torsion supply part and the rotating part to simultaneously act and gears engaged with the idle gear, and the gears and the idle gear are crossed helical gear structures.