Magnetic Alignment Case Assembly for Inductive Coil Positioning
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Solution Overview
Problem
Existing portable electronic device charging methods, such as using charging cords, are prone to dust and moisture intrusion and require physical connection, while wireless charging systems face inefficiencies in aligning inductive coils for optimal power transfer.
Innovation Solution
A magnetic alignment system comprising annular alignment components and rotational magnetic alignment components that magnetically attract and align portable electronic devices and wireless charging devices, ensuring efficient wireless power transfer by aligning inductive coils and facilitating simultaneous power transfer between multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless charging is used to eliminate physical charging cords, then convenience and protection from dust/moisture intrusion are improved, but alignment precision between inductive coils deteriorates
Solution Approach 1:
The patent applies preliminary action by incorporating magnetic alignment components into the case before the charging process begins. These components pre-establish the magnetic field configuration that will guide the portable device into proper alignment with the charging surface, ensuring accurate coil positioning before power transfer starts.
Solution Approach 2:
The patent uses magnetic alignment components as an intermediary between the case and the portable device. These components create a magnetic field that acts as a mediator to attract and position the device's magnetic components, thereby achieving precise alignment without requiring manual positioning or complex mechanical guides.
2Measurement precision
If magnetic alignment components are added to the case, then alignment precision of inductive coils is improved, but device complexity increases
Solution Approach 1:
The patent merges the magnetic alignment functionality with the existing case structure. The magnetic alignment components are integrated into the case body, combining the protective function of the case with the alignment function in a single unified structure, thereby minimizing the increase in overall device complexity.
Solution Approach 2:
The case is designed to serve multiple functions: it provides physical protection for the portable device and simultaneously incorporates magnetic alignment components that enable precise wireless charging alignment. This multi-functionality reduces the need for separate alignment devices, thereby limiting the increase in 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
The magnetic alignment system enhances the efficiency of wireless power transfer by ensuring precise alignment of inductive coils, reducing the need for physical connections, and enabling simultaneous power transfer between devices, thus improving charging efficiency and convenience.
Implementation Method 1
A magnetic alignment system comprising annular alignment components and rotational magnetic alignment components that magnetically attract and align portable electronic devices and wireless charging devices
Implementation Method 2
A transmitter coil disposed below the charging surface may produce a time-varying magnetic flux that induces a current in a corresponding receiving coil in the portable electronic device
Data Source
AI summary
A magnetic alignment system can include a case with a magnetic alignment component that is configured to align with a magnetic alignment component of a wireless charging device. The case can support a portable electronic device, such as a smart phone and include an NFC coil for communicating with the portable electronic device. The magnetic alignment component and the NFC coil can be provided as an assembly that is embedded within a body of the case in a manner that provides a low profile and improved aesthetic appearance.