Fragmented Magnetic Attachment Assembly for Slim Wireless Charging
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Solution Overview
Problem
Portable electronic devices with narrow form factors, such as personal grooming devices, face challenges in magnetically attaching to standard wireless charging devices due to lack of space for a full-sized magnetic ring, limiting compatibility and usability.
Innovation Solution
A fragmented magnetic attachment assembly comprising a plurality of magnets arranged in an annular shape without forming a complete annular array, allowing magnetic engagement with standard wireless charging devices while fitting within the device's narrow profile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complete annular magnetic ring is used for magnetic attachment, then secure magnetic engagement and alignment are achieved, but the device cannot accommodate narrow form factors due to insufficient space
Solution Approach 1:
The complete annular magnetic ring is divided into multiple discrete magnet segments arranged in an annular pattern. This segmentation allows the magnetic components to fit within the narrow profile of slim devices while collectively providing sufficient magnetic engagement force with the charging pad
Solution Approach 2:
Instead of requiring a complete 360-degree magnetic ring, the patent uses a partial annular arrangement of magnet segments that provides adequate magnetic attachment security for the device's narrow form factor, achieving sufficient engagement without the full circular configuration
2Adaptability or versatility
If a smaller magnetic ring is used to fit narrow devices, then device compatibility is improved, but magnetic engagement strength and alignment precision are reduced
Solution Approach 1:
The magnetic attachment system is segmented into multiple discrete magnets arranged annularly, allowing the total magnetic force to be distributed across multiple contact points with the charging pad, thereby maintaining adequate engagement strength despite the reduced overall size required for narrow devices
Solution Approach 2:
The magnet segments are strategically positioned and sized to concentrate magnetic force at critical engagement points with the charging pad, ensuring sufficient local magnetic strength and alignment precision even though the overall magnetic ring is smaller than conventional designs
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
Enables secure magnetic attachment and wireless charging of portable electronic devices with slim profiles on standard charging pads, enhancing compatibility and reducing clutter and costs by using a single charging device for multiple devices.
Implementation Method 1
a receiver coil adapted to wirelessly receive power from an electromagnetic field and generate current
Implementation Method 2
a magnetic attachment assembly comprising a plurality of magnets arranged in an annular shape without forming a complete annular array of magnets
Data Source
AI summary
The present disclosure is directed to an improved portable electronic device (e.g., a personal grooming device) having a fragmented (i.e., discontinuous) magnetic attachment assembly for supporting and aligning the device on a wireless charging pad or support pad for a wired recharging connection.