Multi-Coil Wireless Charging Layout for Faster Device Charging
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Solution Overview
Problem
Existing wireless charging technologies are unable to meet the increasing demand for faster charging rates due to limitations in receiver coils and rectifier circuits, especially with larger battery capacities, leading to high costs and inefficiencies.
Innovation Solution
Implementing multiple wireless charging channels using multiple transmitter and receiver circuits, allowing for improved wireless charging power and increased charging rates by utilizing multiple wireless charging channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If contactless charging is used, then convenience is improved, but charging speed is reduced
Solution Approach 1:
The system dynamically switches between contactless charging mode (convenient but slower) and contact charging mode (faster but less convenient). The controller adjusts the charging method based on real-time conditions, allowing the system to optimize between convenience and charging speed rather than being fixed to one mode.
Solution Approach 2:
The system periodically transitions between contactless and contact charging modes. During normal operation, contactless charging is used for convenience, but when faster charging is needed or when the device is properly positioned, the system switches to contact charging, creating a periodic alternation that balances both requirements.
2Productivity
If contact charging is used, then charging speed is improved, but convenience is reduced
Solution Approach 1:
The system dynamically switches between contactless charging mode (convenient but slower) and contact charging mode (faster but less convenient). The controller adjusts the charging method based on real-time conditions, allowing the system to optimize between convenience and charging speed rather than being fixed to one mode.
Solution Approach 2:
The system automatically determines when to switch between contactless and contact charging modes based on detected conditions such as device positioning and charging requirements. The controller self-manages the transition without user intervention, selecting the appropriate charging mode to balance speed and convenience.
3Adaptability or versatility
If wireless charging coil is exposed, then charging functionality is improved, but aesthetics are worsened
Solution Approach 1:
A flexible transparent cover is used to enclose the wireless charging coil. This thin film structure maintains the aesthetic appearance by providing a smooth, uniform surface while allowing the coil to function underneath. The cover protects the coil and provides a finished look without interfering with charging functionality.
Solution Approach 2:
The design moves the aesthetic concern from the functional layer (where the coil must be exposed to work) to a separate protective layer (the transparent cover). By adding this dimensional layer, the system resolves the conflict between functionality and aesthetics - the coil remains exposed for charging while the cover provides the aesthetic finish.
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 use of multiple wireless charging channels significantly enhances charging power, potentially doubling or tripling the charging rate compared to single-channel systems, while reducing heat generation and improving charging speed.
Implementation Method 1
a transmitter coil for transmitting wireless power to the electronic device
Implementation Method 2
a receiver coil configured to receive the wireless power transmitted by the transmitter coil
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Embodiments of the present invention provide an electronic device, and a wireless charging apparatus, system and method, relating to the technical field of wireless charging. The wireless charging system comprises: a device to be charged and the wireless charging apparatus. The device to be charged comprises a battery and at least two wireless receiving coils. The wireless charging apparatus comprises at least two wireless transmitting coils. The at least two wireless transmitting coils are used for converting electric energy into electromagnetic signals for transmission; the at least two wireless receiving coils are used for receiving electromagnetic signals transmitted by the wireless charging apparatus at different charging stages, wherein the at least two wireless transmitting coils are matched with the at least two wireless receiving coils in a one-to-one manner. The electronic device, and the wireless charging apparatus, system and method provided in the embodiments of the present invention can significantly improve a wireless charging power of the electronic device.