Microprojection Device Magnetic Suspension Base
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Solution Overview
Problem
Current wearable microprojector technologies, such as the ring projector, lack a practical implementation for a magnetic suspension base that effectively suspends and stabilizes the microprojector for improved user experience.
Innovation Solution
A microprojection device comprising a microprojector fixed to a main suspension magnet with a vertical magnetic field direction, and an auxiliary magnet system that maintains stable orientation and allows for wireless charging, along with a magnetic suspension base featuring a housing with base magnets forming a combined vertical magnetic field to suspend the device, and an electromagnet control unit for real-time adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a magnetic suspension base is added to the ring projector, then the user experience is improved through stable suspension and orientation, but the device complexity increases
Solution Approach 1:
The magnetic suspension system is divided into separate components: base magnets in the housing and suspension magnets in the projector, allowing independent optimization and simplification of each part while achieving stable suspension through their interaction
Solution Approach 2:
The magnetic field acts as an intermediary between the base magnets and suspension magnets, enabling contactless force transmission for stable suspension and orientation without mechanical connections
2Stability of the object's composition
If auxiliary magnets are added for orientation control, then the orientation stability is improved, but the device complexity increases
Solution Approach 1:
Auxiliary magnets are strategically positioned at specific locations on the suspension board to provide localized magnetic field control, enabling precise orientation adjustment without requiring a complete redistribution of magnetic components throughout the device
Solution Approach 2:
The auxiliary magnets are arranged in an asymmetric pattern relative to the main suspension magnet, creating directional magnetic field gradients that enable stable orientation control in specific directions while maintaining suspension stability
3Reliability
If the magnetic field intensity is increased for better suspension, then the suspension stability is improved, but the energy consumption increases
Solution Approach 1:
The system uses adjustable electromagnets instead of fixed permanent magnets, allowing the magnetic field intensity to be dynamically optimized to match the actual suspension requirements, thereby minimizing energy consumption while maintaining stable suspension
Solution Approach 2:
The magnetic field parameters (intensity, distribution) are optimized through design to achieve the minimum necessary field strength for stable suspension, reducing unnecessary energy consumption while maintaining reliability
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 enables stable suspension and orientation of the microprojector, ensuring a stable image projection and extended battery life through wireless charging, while allowing for flexible adjustment of the suspension height and orientation.
Implementation Method 1
a magnetic field direction at a magnetic field center of the main suspension magnet is in a vertical direction, so that the microprojector can be driven to be suspended in a magnetic field environment
Implementation Method 2
the microprojector can be driven to be suspended in a magnetic field environment
Implementation Method 3
at least three base magnets disposed in the housing. A magnetic field direction of a center of a combined magnetic field formed by the at least three base magnets is in a vertical direction
Implementation Method 4
magnetic intensity at the center of the combined magnetic field is less than magnetic intensity of the combined magnetic field near the base magnets
Implementation Method 5
a straight line in which the magnetic field direction at a magnetic field center of each auxiliary magnet is disposed is perpendicular to a straight line in which the magnetic field direction at the magnetic field center of the main suspension magnet is disposed
Data Source
AI summary
A microprojection device and a magnetic suspension base are provided. The microprojection device comprises a microprojector and a main suspension magnet. The microprojector is fixed to the main suspension magnet. The magnetic field direction at a magnetic field center of the main suspension magnet is in the vertical direction so the microprojector can be driven to be suspended in a magnetic field environment. The magnetic suspension base comprises: a housing and at least three base magnets disposed therein. The magnetic field direction at the center of a combined magnetic field formed by the at least three base magnets is in the vertical direction; the magnetic intensity at the center of the combined magnetic field is less than the magnetic intensity near the base magnets; and the microprojector can be driven to be suspended under the magnetic field environment by being fixed on the magnet.