Wireless Charging Coil with Segmented Magnet Units for Multi-Device Positioning
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Solution Overview
Problem
Existing wireless charging systems face complexity, high cost, and inconvenience due to the need for separate charging coils and magnetic structures to accommodate different shapes and internal magnetic structures of mobile phones and watches, limiting their adaptability and usability.
Innovation Solution
A wireless power transmitting apparatus comprising a wireless power transmitting coil, first magnet units arranged around the coil, and a second magnet unit at its center, with specific magnetic pole configurations to magnetically attract and position various wireless power equipment for efficient charging, allowing the same apparatus to charge both mobile phones and watches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate charging coils are integrated to accommodate different device shapes and magnetic structures, then adaptability to various devices is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent implements a single wireless charging coil that can serve multiple device types (mobile phones and smartwatches) by combining it with multiple magnet units that can be independently activated. This universal approach eliminates the need for separate charging coils for different device shapes and sizes, reducing structural complexity while maintaining adaptability.
Solution Approach 2:
The patent divides the magnetic attraction function into multiple independent magnet units (first magnet unit and second magnet unit) that can be selectively activated based on the device being charged. This segmentation allows the single charging coil to adapt to different device configurations without requiring the entire magnetic structure to be reconfigured, simplifying the overall system design.
2Force
If multiple magnet units are added to attract different device types, then magnetic attraction capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent employs magnet units with controllable magnetic polarity that can be dynamically adjusted based on the device being charged. The controller can reverse the polarity of different magnet units to create appropriate magnetic attraction patterns for mobile phones or smartwatches, providing enhanced magnetic attraction capability without requiring permanent physical changes to the structure.
Solution Approach 2:
The patent changes the magnetic field parameters (polarity and activation state) of the magnet units to adapt to different charging scenarios. By controlling the magnetic polarity of the first and second magnet units independently, the system achieves versatile magnetic attraction capability while keeping the physical structure relatively simple.
3Ease of manufacture
If a single wireless charging coil is used for multiple devices, then manufacturing cost is reduced, but magnetic positioning accuracy for different devices deteriorates
Solution Approach 1:
The patent incorporates a controller that monitors the charging state and device positioning, and adjusts the magnetic field distribution accordingly. The controller receives feedback about which device is being charged and activates the appropriate magnet units with suitable polarity configurations, ensuring accurate magnetic positioning for both mobile phones and smartwatches while using a single charging coil.
Solution Approach 2:
The patent pre-configures multiple magnet units with specific polarity arrangements that are optimized for different device types. Before charging begins, the controller selects and activates the appropriate magnet configuration based on the detected device, enabling accurate magnetic positioning without requiring multiple physical charging coils.
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 provides a cost-effective, adaptable, and user-friendly wireless charging system that can efficiently charge multiple devices using the same wireless power transmitting coils, offering improved magnetic attraction and positioning for diverse wireless power equipment.
Implementation Method 1
a wireless power transmitting coil; a wireless power receiving coil
Implementation Method 2
first magnet units, arranged around the wireless power transmitting coil; and a second magnet unit, arranged at the center of the wireless power transmitting coil
Data Source
AI summary
Disclosed in embodiments of the present disclosure are a wireless power transmitting apparatus and a wireless charging system. The wireless power transmitting apparatus comprises a wireless power transmitting coil, first magnet units and a second magnet unit. The first magnet units arranged at intervals around the wireless power transmitting coil, and the second magnet unit arranged in the center of the wireless power transmitting coil. The wireless charging system comprises the wireless power transmitting apparatus and a wireless power receiving apparatus, which comprises a wireless power receiving coil and magnet units arranged around or at the center of the wireless power receiving coil. Therefore, the technical scheme of the embodiments of the present disclosure can magnetically attract a variety of wireless power equipment for wireless charging, and can provide good adaptability and strong usability.