Wireless Power Coil Feedback for Controlled Inductive Charging
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Solution Overview
Problem
Existing electrical appliances require physical connection to a power source via plugs and cords, leading to inconveniences such as clutter, frequent unplugging, and potential overload, and existing wireless power solutions lack refined control and feedback for varying power demands.
Innovation Solution
A system utilizing a secondary coil within an appliance and a primary coil in close proximity, isolated by a barrier, with infrared feedback to control power transfer, allowing for refined power control and compatibility through handshaking and feedback systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless power transfer is implemented without direct wiring, then convenience and mobility are improved, but power delivery control and monitoring become more difficult
Solution Approach 1:
The patent implements a feedback system using sensors (such as infrared transmitters and receivers) that communicate between the primary coil housing and the appliance. The sensor in the appliance transmits data indicators about power needs and operational status, which are received and processed by the controller in the primary coil housing to adjust power delivery accordingly. This closed-loop feedback mechanism enables precise control of wireless power transfer without requiring direct wiring.
Solution Approach 2:
The patent introduces sensors and controllers as intermediary components that mediate the wireless power transfer process. These intermediaries facilitate communication and control between the power source (primary coil) and the appliance (secondary coil) without direct physical connection. The sensor acts as a messenger carrying information about power requirements, while the controller processes this information and adjusts the power delivery, enabling convenient wireless operation while maintaining precise control.
2Ease of operation
If multiple appliances are powered wirelessly without plugs, then clutter is reduced, but power distribution management becomes more complex
Solution Approach 1:
The patent designs the primary coil housing and controller system to be universal and multi-functional, capable of serving multiple different appliances simultaneously. The controller can receive data indicators from various types of appliances through the sensor communication system and automatically adjust power delivery parameters for each device. This universal design eliminates the need for appliance-specific wiring or plugs while maintaining efficient power distribution management through intelligent control algorithms.
3Ease of operation
If wireless power transfer is implemented, then ease of appliance placement is improved, but power delivery precision and monitoring become more challenging
Solution Approach 1:
The patent employs continuous feedback through sensor communication to monitor power delivery precision despite varying appliance placements. The sensor in the appliance continuously transmits data indicators about its operational status and power reception, which the controller uses to real-time adjust and maintain precise power delivery regardless of the appliance's position or orientation. This feedback mechanism ensures accurate power monitoring and control even when appliances are freely placed without fixed wiring connections.
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 wireless power delivery with refined control and feedback, reducing clutter and enhancing mobility of devices, while supporting a wide range of power requirements from trickle charging to 4.5kW, and allowing interoperability and efficient power management.
Implementation Method 1
a primary coil within a housing that is physically separate from, and that at least partially provides mechanical and electrical isolation from, a secondary coil physically associated with the appliance, wherein the primary coil is suitable for inducing a current in the secondary coil when magnetically proximate to the second coil
Implementation Method 2
a secondary coil within a housing physically associated with the appliance and suitable for providing induced operative current from a primary coil magnetically proximate to, and at least partially isolated from, the secondary coil
Data Source
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AI summary
An apparatus, system and method for wirelessly powering a device. The apparatus, system and method may include a primary coil housing that houses a primary coil; a secondary coil housed within the device and suitable for having power induced therein responsive to the primary coil; an isolator that at least partially mechanically and electrically isolates the primary coil from the secondary coil; and a plurality of paired feedback sensors respectively communicatively and physically associated with, and paired as between, the primary coil housing and the device, wherein the plurality of paired feedback sensors exchanges indications regarding performance of the secondary coil, and wherein performance of the primary coil is modified responsively to the indications.