Foldable Phone Hinge Structure With Integrated Friction Damping
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Solution Overview
Problem
The hinge structure of foldable phones with concave-convex wheels and springs occupies excessive space, hindering the development of thinner and lighter designs.
Innovation Solution
A hinge structure incorporating a base, swing arm assembly, rotating shaft, friction plate, and compression spring, with damping plates and friction plates in surface contact, reducing overall volume while enhancing damping and rotational friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If concave-convex wheels and springs are used in the hinge structure, then damping function is improved, but volume of the hinge structure increases
Solution Approach 1:
The patent combines the damping function and rotational friction function into a single integrated structure. The swing arm assembly includes damping plates that work with friction plates to provide both damping and rotational friction, eliminating the need for separate concave-convex wheels and springs, thus reducing overall volume while maintaining functionality
Solution Approach 2:
The swing arm assembly is designed to perform multiple functions simultaneously: it provides damping through the damping plates and springs, rotational friction through the friction plates, and structural support. This multi-functional design replaces multiple specialized components with a single versatile assembly, reducing the hinge structure volume
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 provides improved damping and rotational friction, enhancing user experience and reducing the overall volume of the hinge structure compared to conventional designs.
Implementation Method 1
the compression spring abuts against the swing arm assembly
Implementation Method 2
the at least two damping plates are in contact with the friction plate
Data Source
AI summary
A hinge structure and an electronic device. The hinge structure includes a base, a swing arm assembly, a rotating shaft, a friction plate, and a compression spring. The rotating shaft is disposed on the base, both the swing arm assembly and the friction plate are disposed on the rotating shaft, and the swing arm assembly is rotatably connected to the rotating shaft. The swing arm assembly includes at least two damping plates, the at least two damping plates are sleeved on the rotating shaft, the at least two damping plates are rotatably connected to the rotating shaft, the friction plate is disposed between the at least two damping plates, the at least two damping plates are in contact with the friction plate.