Folding Device Shaft Mechanism With Damping for Stable Housing Motion
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Solution Overview
Problem
Foldable electronic devices often experience shaky left and right housings during folding and unfolding, leading to an unsatisfactory user experience.
Innovation Solution
A rotating shaft mechanism with a supporting frame, a rotating member, and a resilient piece that applies a damping force to stabilize the rotation process, enabling smooth folding and unfolding of the electronic device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple rotating shaft mechanism is used for folding, then the device structure is simple, but the housing becomes shaky during folding and unfolding
Solution Approach 1:
The resilient piece is pre-installed on the supporting frame to provide cushioning force before the housing reaches unstable positions during folding. This beforehand cushioning counteracts shocks and vibrations proactively, preventing shakiness rather than reacting to it, thus maintaining housing stability without adding complex active control systems.
Solution Approach 2:
The resilient piece changes the mechanical parameters of the rotating shaft mechanism by introducing elastic deformation capabilities. This parameter change allows the system to absorb energy and dampen vibrations, transforming the rigid rotating shaft system into a more compliant system that maintains stability during folding and unfolding operations.
2Stability of the object's composition
If a resilient piece is added to apply damping force, then housing stability improves, but device complexity increases
Solution Approach 1:
The resilient piece is designed as a simple, inexpensive passive component that can be easily replaced if needed. This approach uses a low-cost element to solve the stability problem without investing in complex, expensive active damping systems, maintaining cost-effectiveness while improving performance.
Solution Approach 2:
The damping function is extracted as a separate, independent resilient piece rather than being integrated into the main rotating shaft mechanism. This extraction allows the damping function to be added independently, simplifying the overall design and maintenance while solving the stability issue.
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 rotating shaft mechanism enhances user comfort by ensuring stable and smooth movement of the electronic device during unfolding and folding processes, reducing shakiness and improving overall usage experience.
Implementation Method 1
a resilient piece configured to apply a damping force to the rotating member
Data Source
AI summary
A rotating shaft mechanism for folding an electronic device, a housing assembly and an electronic device are provided. The rotating shaft mechanism includes a supporting frame, a rotating member and a resilient piece. An end of the rotating member is rotatably disposed on the supporting frame; and the resilient piece is disposed on the supporting frame and is configured to apply a damping force to the rotating member.