Magnetic Docking Coupling With Auxiliary Magnet for Easy Release
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Solution Overview
Problem
Existing magnetic coupling systems for handheld devices and their bases face challenges in balancing low magnetic docking forces with stability, particularly in resisting gravitational forces and preventing sliding.
Innovation Solution
Incorporating an auxiliary magnet with opposite polarity, spaced apart from the primary magnetic coupling, creates a repulsive force that counteracts downward forces, enhancing stability and reducing the force required to separate the device from the base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a single magnetic coupling is used to dock the hand held device to the base, then the device can be held in position, but the force required to remove the device is high and stability against sliding is insufficient
Solution Approach 1:
The magnetic coupling system is segmented into multiple independent magnets: a first magnet for primary docking attraction and a second magnet for providing release assistance. This segmentation allows each magnet to perform a specific function, reducing the force needed for removal while maintaining docking stability.
Solution Approach 2:
A non-magnetic material is introduced as an intermediary between the hand held device and the base. This intermediary allows magnetic fields to pass through while providing a mechanical interface that facilitates easier removal by reducing direct magnetic contact resistance.
2Stability of the object's composition
If magnetic coupling strength is increased to prevent sliding, then stability improves, but the force required to separate the device from the base increases
Solution Approach 1:
The magnetic coupling is divided into multiple magnets with different functions: one magnet optimized for strong attraction to prevent sliding, and another magnet positioned to provide release assistance. This segmentation allows the system to achieve both high stability and easy removal without requiring a single strong magnet that would increase separation force.
Solution Approach 2:
The magnetic coupling system uses asymmetric positioning and polarity configuration of the magnets. The first magnet is positioned and polarized to maximize attraction for stability, while the second magnet is positioned and polarized to minimize resistance during removal, creating asymmetric magnetic field distribution that favors both stability and ease of separation.
3Device complexity
If a single magnet is used for docking, then the structure is simple, but stability against gravitational forces is insufficient
Solution Approach 1:
The magnetic coupling system is segmented into multiple magnets arranged in specific configurations. This segmentation provides distributed magnetic force that better counteracts gravitational forces and prevents sliding, while the modular design allows for compact integration that minimizes overall device complexity.
Solution Approach 2:
Multiple magnetic coupling elements are merged into a single integrated docking interface. The first and second magnets are combined within the base structure, working together to provide both strong attraction for stability and assisted release functionality, achieving enhanced stability without proportionally increasing device 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
This configuration reduces the undocking force, increases robustness against gravitational forces, and enhances the stability of the handheld device on its base, minimizing the risk of sliding or falling.
Implementation Method 1
the first magnet and second magnet have an attractive force between them in the first direction
Implementation Method 2
the first magnet and the auxiliary magnet have a repulsive force between them in a third direction
Data Source
AI summary
The present disclosure is directed to a magnetic coupling system to improve stability at low magnetic docking forces, such as docking between a hand held device (102) and its base (104), where the hand held device and the base each contain a magnet (112, 108) with the same direction of polarity, arranged so that the two magnets attract each other when the hand held device is docked to the base. An auxiliary magnet (114) is included in the magnetic coupling system. In one example, the auxiliary magnet may be arranged within the hand held device at a predetermined distance from the other magnet within the hand held device and is arranged with polarity in the opposite directions as the other two magnets. In another example, the auxiliary magnet may be arranged within the base at a predetermined distance from the other magnet within the base and is arranged with polarity in the opposite direction as the other two magnets.