Pseudo-Random Magnet Array for Accessory Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic devices face challenges in aligning accessories properly due to space and power restrictions, often requiring complex mechanical mechanisms that increase parts and risk of failure, limiting size reduction and security against unauthorized use.
Innovation Solution
A pseudo-random magnet array is used around the electronic device interface and accessory to ensure proper alignment, with customizable polarity distributions using electromagnets and permanent magnets, allowing only a single secure orientation and preventing unauthorized use by creating unique polarity patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If mechanical alignment mechanisms are used to ensure proper accessory alignment, then alignment precision is improved, but device complexity increases and reliability decreases
Solution Approach 1:
The patent replaces complex mechanical alignment mechanisms with a magnetic field-based alignment system. Magnets embedded in the electronic device and accessory create magnetic attraction forces that automatically align the accessory with the device interface, eliminating the need for mechanical guides, slots, or interlocking structures.
Solution Approach 2:
The patent uses variations in magnetic field strength and polarity distribution to achieve precise alignment. By strategically positioning magnets with different polarities and strengths at specific locations around the interface, the system creates a unique magnetic signature that guides the accessory into the correct orientation without mechanical constraints.
2Manufacturing precision
If mechanical alignment mechanisms are used to ensure proper accessory alignment, then alignment precision is improved, but the number of parts increases
Solution Approach 1:
The patent extracts the alignment function from mechanical structures and transfers it to the magnetic field domain. This eliminates the need for separate mechanical alignment components such as guide rails, positioning pins, or shaped interfaces, reducing the total part count while maintaining alignment precision.
Solution Approach 2:
The patent combines the alignment function with the magnetic coupling function into a single integrated system. The same magnets that provide the holding force for accessory attachment also provide the alignment force, eliminating the need for separate alignment mechanisms and reducing the number of parts.
3Manufacturing precision
If mechanical alignment mechanisms are used to ensure proper accessory alignment, then alignment precision is improved, but reliability decreases
Solution Approach 1:
The patent replaces mechanical alignment components that are subject to wear, loosening, and failure with a magnetic field-based system. Magnetic fields do not degrade over time, have no moving parts to fail, and provide consistent alignment forces, thereby improving system reliability while maintaining alignment precision.
4Manufacturing precision
If mechanical alignment mechanisms are used to ensure proper accessory alignment, then alignment precision is improved, but the electronic device size cannot be reduced
Solution Approach 1:
The patent removes bulky mechanical alignment structures from the electronic device design. By using embedded magnets that generate alignment forces through the interface, the system eliminates the need for large mechanical guides or positioning features, allowing for a more compact device form factor while maintaining alignment precision.
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 magnet array effectively aligns and secures accessories while reducing the complexity of mechanical parts, enhancing user experience and security by ensuring only authorized accessories function with the device.
Implementation Method 1
The magnets can be disposed such that the polarity of the magnets creates a non-repeating pattern. The accessory device can include a corresponding series of magnets positioned adjacent to the portion of the accessory to be placed in contact with the electronic device such that the polarity of the corresponding magnets is the exact opposite of that of the magnets in the device.
Implementation Method 2
The electronic device or accessory can include one or more electromagnets for which the polarity can be selected by changing the direction of current flowing through a coil.
Data Source
AI summary
Systems and methods are providing for aligning an accessory to an electronic device interface. In particular, some accessories such as optical filters and lens require specific alignment to operative properly. Using a first magnet array positioned around the periphery of the interface and a second magnet array positioned within the accessory, a user can position an accessory on the electronic device and rotate the accessory until the magnets of each array exert a force on an opposing magnet of the other array. By distributing the magnets in a manner that includes no repeating segments, only a single alignment of the accessory relative to the interface can allow the magnet arrays to be properly in opposition.