Wireless Power Transfer Coil Array for Flexible Placement
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Solution Overview
Problem
Traditional wireless power transfer systems require precise alignment of transmitter and receiver coils, limiting the freedom of placement for devices or batteries being charged, and are not efficient for charging multiple devices with different power and voltage requirements.
Innovation Solution
The development of systems and methods that enable wireless power transfer with freedom of placement in one or multiple dimensions, using inductive or magnetic charging, and allowing for charging of various devices with different power and voltage needs, including the use of flexible charger surfaces and coils, and communication protocols for efficient power regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional wireless power transfer systems use aligned transmitter and receiver coils of comparable size, then power transfer efficiency is maintained, but placement freedom is restricted
Solution Approach 1:
The transmitter is divided into multiple independently controllable coil segments arranged in an array. Each coil can be individually activated or deactivated based on the receiver's position, allowing the system to maintain efficient power transfer while accommodating various placement configurations.
Solution Approach 2:
The system dynamically selects and activates specific coil segments based on real-time receiver position detection. This dynamic adaptation allows the transmitter to optimize power transfer efficiency for any receiver placement without requiring precise alignment.
2Device complexity
If a single wireless power transmitter serves multiple devices with different power requirements, then system simplicity is maintained, but power regulation precision deteriorates
Solution Approach 1:
The transmitter coil array is segmented into multiple independently controllable units. By activating different numbers and combinations of coils, the system can precisely regulate power output to match different device requirements while maintaining a relatively simple overall system architecture.
Solution Approach 2:
Different coil segments can be activated with different power levels to provide localized power regulation. This allows the system to deliver appropriate power to multiple devices with different requirements simultaneously, achieving precise power control without significantly increasing system complexity.
3Adaptability or versatility
If transmitter and receiver coils are of comparable size and aligned, then coupling efficiency is maximized, but adaptability to different device configurations is reduced
Solution Approach 1:
The transmitter is segmented into multiple coils of varying sizes and positions. This segmentation allows the system to adapt to different receiver configurations by selectively activating appropriate coil segments, maintaining good coupling efficiency without requiring the receiver to be precisely positioned.
Solution Approach 2:
The coil array is designed to serve multiple functions: it can charge single or multiple devices simultaneously, accommodate different device sizes and positions, and provide varying power levels. This universality achieves adaptability to different configurations while minimizing energy loss through optimized coil selection.
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 efficient and flexible wireless power transfer to multiple devices with varying power and voltage requirements, allowing for charging without precise alignment and supporting a wide range of applications, including electric vehicles and industrial uses.
Implementation Method 1
Traditional wireless technologies, for powering or charging mobile or other electronic or electric devices, generally use a wireless power transmitter and wireless power receiver in combination, to provide a means for transfer of power across a distance
Implementation Method 2
In accordance with various embodiments, applications include inductive or magnetic charging and power
Data Source
AI summary
Systems and methods for enabling efficient wireless power transfer, and charging of devices and batteries, in a manner that allows freedom of placement of the devices or batteries in one or multiple (e.g., one, two or three) dimensions. In accordance with various embodiments, applications include inductive or magnetic charging and power, and wireless powering or charging of, e.g., mobile, electronic, electric, lighting, batteries, power tools, kitchen, military, medical or dental, industrial applications, vehicles, trains, or other devices or products. In accordance with various embodiments, the systems and methods can also be generally applied, e.g., to power supplies or other power sources or charging systems, such as systems for transfer of wireless power to a mobile, electronic or electric device, vehicle, or other product.