Movable Wireless Charging Coil and Magnet for Mixed Device Compatibility
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Solution Overview
Problem
Existing wireless charging devices struggle to charge both magnet-compatible and non-magnet compatible terminal devices simultaneously, as the magnetic force from the magnet in the charging device can interfere with non-magnet compatible devices, preventing charging.
Innovation Solution
A charging device equipped with a first charging coil, a magnet, and a moving mechanism that allows the charging coil and magnet to be moved along a placement surface within a chargeable region. This device can determine whether a terminal device is magnet-compatible or not and adjust its configuration accordingly to prevent magnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a magnet is arranged together with the charging coil in the charging device to enable magnet attraction type charging, then charging compatibility with magnet-equipped terminal devices is improved, but magnetic force interference prevents charging of non-magnet compatible terminal devices
Solution Approach 1:
The charging device employs a movable mechanism that allows the charging coil and magnet to dynamically change their relative positions. The system can switch between a first position (where the coil and magnet are aligned for magnet-compatible devices) and a second position (where they are offset for non-magnet compatible devices), enabling adaptability to different device types without permanent structural modification
Solution Approach 2:
The invention changes the spatial parameters of the charging components by moving the charging coil and magnet between different positions. By adjusting the positional parameters of the coil and magnet relative to each other and to the placement surface, the system optimizes charging performance for different terminal device types, transforming fixed-parameter design into variable-parameter operation
2Reliability
If the charging coil and magnet are fixed in position to maintain stable charging performance, then charging efficiency is improved, but the device cannot adapt to different terminal device types
Solution Approach 1:
The system transitions from a static fixed-position design to a dynamic movable design, where the charging coil and magnet can be repositioned based on the detected terminal device type. This maintains stable charging performance for each device type while enabling adaptation across different device categories
Solution Approach 2:
The charging device achieves multi-functionality by incorporating a movable mechanism that allows the same charging components to serve different purposes: aligning with magnet-compatible devices for magnetic attraction charging, and positioning away from non-magnet compatible devices for standard wireless charging, thus one system serves multiple charging modes
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 enables the charging device to effectively charge both magnet-compatible and non-magnet compatible terminal devices without interference, improving charging efficiency and compatibility.
Implementation Method 1
a first charging coil configured to transmit power to the terminal device
Implementation Method 2
The magnet is provided outside the first charging coil
Data Source
AI summary
A charging device according to the present disclosure is a charging device wirelessly charging a terminal device that is placed on a placement surface to receive wirelessly transmitted power. The charging device includes a first charging coil, a magnet, and a moving mechanism. The first charging coil is configured to transmit power to the terminal device. The magnet is provided outside the first charging coil. The moving mechanism is configured to move the first charging coil and the magnet along the placement surface within a chargeable region corresponding to the placement surface.