Hybrid Hinge Torque Control via Electromagnetic Actuation
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Solution Overview
Problem
Conventional hinge mechanisms in electronic devices lack sufficient torque control and stability, particularly in portable devices with touchscreens, leading to wear and increased thickness due to repetitive movements and varied user experience requirements.
Innovation Solution
A hybrid hinge integrating mechanical and electro-mechanical components, where an electro-magnetic or electro-mechanical auxiliary component dynamically adjusts torque by varying electrical power to the pivot, allowing configurable torque control based on user modes and operational conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If traditional friction-only hinge design is used, then device complexity is reduced, but torque control capability and stability deteriorate
Solution Approach 1:
The patent replaces traditional mechanical friction-based torque control with an electromagnetic actuation system. The electromagnetic component generates controllable electromagnetic forces to provide precise torque control, substituting the mechanical friction system while enabling dynamic adjustment of torque levels based on operational modes.
Solution Approach 2:
The patent implements variable torque control by changing the electrical parameters (current, voltage) supplied to the electromagnetic component. This allows dynamic adjustment of the electromagnetic force and consequently the hinge torque, enabling adaptation to different operational modes such as touchscreen usage versus keyboard input.
2Device complexity
If standard hinge mechanisms are used, then device complexity is minimized, but lid position stability deteriorates under touchscreen usage forces
Solution Approach 1:
The patent replaces passive mechanical friction stabilization with an active electromagnetic control system. The electromagnetic component can dynamically adjust forces to counteract external disturbances such as user pressure on the touchscreen, maintaining lid position stability that mechanical friction alone cannot provide.
Solution Approach 2:
The patent incorporates feedback control where the system monitors operational mode and adjusts electromagnetic force accordingly. When touchscreen usage is detected, the system increases electromagnetic holding force to maintain stability, creating a closed-loop control system that responds to actual usage conditions.
3Ease of manufacture
If friction washers or tensioners are used for hinge operation, then ease of manufacture is improved, but wear from repetitive movement increases
Solution Approach 1:
The patent substitutes mechanical friction elements (washers, tensioners) with an electromagnetic actuation system. This replacement eliminates repetitive mechanical contact wear while maintaining ease of manufacture through standardized electromagnetic components and mounting structures, thereby improving reliability without significantly complicating manufacturing.
4Adaptability or versatility
If configurable torque control is implemented, then adaptability to different operational modes is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal hinge mechanism where a single electromagnetic component serves multiple functions: torque control, position stabilization, and operational mode adaptation. This multi-functional design enables configurable torque control for different operational modes (touchscreen, keyboard, tablet) without requiring separate specialized mechanisms for each mode, thereby managing complexity while achieving versatility.
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 hybrid hinge provides stable and adjustable torque control, enhancing user experience by maintaining lid position stability across different usage modes, reducing wear, and optimizing device thickness, while minimizing power consumption by using the auxiliary component only when necessary.
Implementation Method 1
an electro-magnetic or electro-mechanical auxiliary component dynamically adjusts torque by varying electrical power to the pivot
Data Source
AI summary
A control mechanism and method for a hybrid hinge for electronic devices are disclosed. A particular embodiment includes: a hybrid hinge for an electronic device, the hybrid hinge comprising: a pivot; and an auxiliary component including one or more electro-magnetic or electro-mechanical devices and a variable electrical power source, the one or more electro-magnetic or electro-mechanical devices being configured to apply a variable degree of torque force to the pivot based on a degree of electrical power supplied by the electrical power source.