Magnetic Coupling Stabilizes Hinge Arm During Touch
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Solution Overview
Problem
Conventional hinge structures in portable computing devices, such as notebook computers, fail to provide sufficient support and stability during touch operations, leading to shaking and operation difficulties when the screen is unfolded.
Innovation Solution
An electronic device design incorporating a first coupling member in the body and a second coupling member in the supporting arm, which are attracted to each other when the supporting arm rotates, providing additional support and stability by adjusting their positions and profiles to maintain stability within a specific angle range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional hinge structure is used to connect the supporting arm and the body, then the device can be unfolded and the screen can be displayed, but the supporting arm shakes and waves during touch operation due to insufficient support
Solution Approach 1:
The patent replaces part of the mechanical hinge support system with a magnetic coupling system. The first coupling member (magnet) in the body and the second coupling member (magnet) in the supporting arm create magnetic attraction force that provides additional support to the supporting arm during touch operation, eliminating shaking and waving without requiring additional mechanical support structures
Solution Approach 2:
The patent changes the physical state of the support mechanism by introducing magnetic field interaction. The magnetic coupling members generate attraction force that varies with distance, providing dynamic support that adapts to the supporting arm's position during rotation and touch operation, thereby improving stability without compromising rotation smoothness
2Stability of the object's composition
If the supporting arm is made more rigid to prevent shaking, then stability improves, but the rotation smoothness and convenience deteriorate
Solution Approach 1:
Instead of using a rigid mechanical support structure that would constrain rotation, the patent uses magnetic attraction force to provide support. The magnetic force acts along the line connecting the two coupling members and naturally adapts to the supporting arm's rotation angle, providing stability without interfering with rotation smoothness
Solution Approach 2:
The magnetic coupling system provides dynamic support that automatically adjusts to the supporting arm's position. As the supporting arm rotates, the magnetic attraction force direction and magnitude change accordingly, maintaining optimal support throughout the rotation range without requiring active control or rigid constraints
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 attraction between the coupling members enhances the stability and smooth rotation of the supporting arm, preventing shaking and ensuring a stable touch operation experience by providing additional support during external forces.
Implementation Method 1
the first coupling member and the second coupling member are attracted by each other
Data Source
AI summary
An electronic device includes a first body, a supporting arm, at least one first hinge, a first coupling member and at least one second coupling member. The first hinge is connected between the first body and the supporting arm. The supporting arm can rotate relatively to the first body through the first hinge. The first coupling member is disposed in the first body. The second coupling member is disposed in the supporting arm. When the second coupling member moves to at least one predetermined position, the first coupling member and the second coupling member are attracted by each other.