Multi-Pole Magnetic Structure for Attachment Without Sensor Interference
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Solution Overview
Problem
Existing inductive charging systems face challenges in interoperability between chargers and receivers due to different communication protocols, and they often interfere with magnetically sensitive components in devices.
Innovation Solution
The development of a multi-protocol system that enables interoperability between chargers and receivers, along with the use of multi-pole magnets that minimize magnetic interference with sensitive components, allowing for secure attachment and alignment of devices without affecting their operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If magnets are used for secure attachment and alignment of devices, then attachment strength is improved, but magnetic interference with sensitive components increases
Solution Approach 1:
The magnetic structure is divided into multiple opposing poles (north and south poles) arranged in alternating patterns on the charging surface. This segmentation allows the magnetic field to be distributed in a way that provides secure attachment while minimizing net magnetic interference with sensitive components, as opposing poles create localized field regions that cancel each other's harmful effects at distance.
Solution Approach 2:
Different regions of the magnetic structure have different pole orientations and field characteristics. By creating localized magnetic zones with specific pole configurations, the system provides strong local attachment forces where needed while minimizing magnetic field exposure to magnetically sensitive components in other regions.
2Adaptability or versatility
If multi-protocol communication system is implemented, then interoperability between chargers and receivers is improved, but system complexity increases
Solution Approach 1:
The charging system is designed with multi-protocol communication capability that allows a single charger or receiver to support multiple communication protocols (such as Qi, AirFuel, and other wireless power communication standards). This universal design enables interoperability between different charging systems without requiring separate dedicated systems for each protocol, thereby improving adaptability while managing complexity through standardized multi-functional architecture.
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 achieves maximum interoperability between different charging systems and minimizes interference with magnetically sensitive components, ensuring safe and efficient charging while maintaining the normal operation of devices.
Implementation Method 1
The first permanent magnetic structure generates magnetic flux densities having substantially similar magnitudes relative to the first and second surfaces as a function of distance from the first and second surfaces
Implementation Method 2
an inductive charger for charging a second electronic device inductively
Data Source
AI summary
An electronic device and a protective cover having a magnetic structure with multiple opposing poles on a surface for use with magnetically sensitive components is provided. The magnetic structure is configured for aligning the electronic device and the protective cover, and creating a separable magnetic attachment between the electronic device and the protective cover. The magnetic structure includes more than three magnetic sections arranged in a linear configuration, with each of the magnetic sections magnetized in a direction perpendicular to first and second surfaces of the magnetic structure. The magnetic structure generates flux densities having similar magnitudes relative to the first and second surfaces as a function of distance from each surface, respectively, along a perpendicular axis. Adjacent magnetic sections are magnetized in opposing directions such that the magnetic structure does not impair normal operation of a camera, a compass, and an inductive charger in the electronic device.