Magnetic Hinge Mechanism for Display Angle Stability
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Solution Overview
Problem
Electronic devices with rotatable displays often experience unintended rotation when users input data through touch screens, leading to preferred angles being disrupted, resulting in either forced angle adjustments or incomplete input reception.
Innovation Solution
A hinge mechanism with variable torque is introduced, utilizing a magnetic attraction force that increases with rotation, providing resistance to maintain the desired display angle during user input, preventing unwanted rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a hinge mechanism is used to allow display rotation, then the display can be viewed at various angles, but the display rotates unintentionally when users touch the screen for input
Solution Approach 1:
The hinge mechanism incorporates a spring that provides variable torque based on the display's angular position. The spring is pre-loaded to create a restoring force that counteracts unintended rotation while allowing intentional angle adjustments. This dynamic mechanical system automatically adapts the torque required for rotation at different angles, maintaining stability during touch input while preserving adaptability for viewing angle changes.
2Stability of the object's composition
If the display is held firmly at a fixed angle, then unwanted rotation is prevented, but the display cannot be easily adjusted to preferred viewing angles
Solution Approach 1:
The spring-loaded hinge provides a dynamic balancing act: at the equilibrium position (preferred viewing angle), the spring force creates stable holding without requiring manual intervention. When the display is displaced from this position, the spring generates variable torque that guides the display back to the equilibrium position, making angle adjustment intuitive and easy while maintaining stability when needed.
3Stability of the object's composition
If variable torque is applied through a spring mechanism, then the display maintains preferred angles during input, but the hinge structure becomes more complex
Solution Approach 1:
The spring mechanism is self-regulating and requires no external control systems, sensors, or power sources. The spring's physical properties automatically provide the variable torque needed to maintain display angle stability during user input. This passive mechanical system eliminates the need for complex electronic controls while achieving the desired stability, thus minimizing added complexity.
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 hinge effectively maintains the display at the user's preferred angle, ensuring accurate input reception while minimizing the need for manual adjustments, thereby enhancing user interaction with electronic devices.
Implementation Method 1
A hinge mechanism with variable torque is introduced, utilizing a magnetic attraction force that increases with rotation, providing resistance to maintain the desired display angle during user input
Data Source
AI summary
Examples herein relate to a hinge. In some examples, a hinge can include a first bracket connected to a shaft, a second bracket connected to the first bracket, a member connected to the shaft and magnetically attracted to a magnet at a first position, where the member translates relative to the magnet to a second position as the shaft rotates about an axis of the shaft, and the magnet to generate a magnetic attraction force between the member and the magnet, where the magnetic attraction force is higher at the second position than the first position.