Wireless Charging System with Directional Beams for 50 cm Distance
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Solution Overview
Problem
Current wireless charging technologies are limited to charging devices within a few centimeters and fail to efficiently charge devices that are misaligned or require power at distances greater than a few centimeters, especially for devices with varying power needs like smartphones and IoT devices.
Innovation Solution
A wireless charging system that uses directional electromagnetic energy beams to charge devices at distances greater than 50 cm, with a system controller and base charger that determines device location and authorization, directing energy beams to authorized devices and storing energy in intermediary storage for efficient power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If magnetic near-field wireless charging is used, then wireless charging is enabled, but charging distance is limited to a few centimeters
Solution Approach 1:
The system segments the wireless charging process into two distinct stages: a first wireless charging stage using magnetic near-field coupling for short distances, and a second wireless charging stage using radiative near-zone or far-zone coupling for longer distances. This segmentation allows the system to overcome the distance limitation of magnetic near-field charging while maintaining power delivery capability through appropriate stage selection and transition.
Solution Approach 2:
The system dynamically switches between different wireless charging modes (magnetic near-field, radiative near-zone, and far-zone) based on the real-time distance between the transmitter and receiver. This dynamic adaptation enables the system to maintain effective power delivery across varying distances by selecting the most appropriate charging mode for the current separation distance.
2Adaptability or versatility
If wireless charging is implemented for devices with varying power needs, then versatility is improved, but system complexity increases
Solution Approach 1:
The system incorporates feedback mechanisms that monitor the power requirements of connected devices and the current charging state. Based on this feedback, the controller automatically adjusts charging parameters and selects appropriate wireless charging modes to match the specific power needs of different devices, whether smartphones, wearables, or IoT devices, without requiring manual configuration.
Solution Approach 2:
The wireless charging system is designed with multi-functionality to serve diverse device types with varying power requirements. By integrating multiple wireless charging modes (magnetic near-field, radiative near-zone, far-zone) and incorporating intelligent device detection and power management, the system provides universal charging capability across smartphones, wearables, IoT devices, and other electronic devices through a single unified platform.
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 wireless charging of devices at greater distances and varying power needs, ensuring authorized devices receive power while optimizing energy use and reducing the need for physical charging cords.
Implementation Method 1
directing one or more directional electromagnetic energy beams from at least one transmitting antenna to the location of the device receiver
Implementation Method 2
receive and convert one or more of the directional electromagnetic energy beams into electrical energy and store at least a portion of this electrical energy in an intermediary electrical storage device
Data Source
AI summary
Disclosed herein is a system controller in electronic communication with at least one wireless base charger system coupled to a power source, at least one transmitting antenna, the wireless charging system configured to determine a location of at least one device receiver located within a physical space and to provide wireless energy delivery comprising directing one or more directional electromagnetic energy beams from at least one transmitting antenna to the location of the device receiver at a distance greater than or equal to 50 cm from the transmitting antenna; each device receiver configured to receive and convert one or more of the directional electromagnetic energy beams into electrical energy and store at least a portion of the electrical energy in an intermediary electrical storage device, and to direct electrical energy from the intermediary electrical storage device to a connected electronic device in electrical connection with the device receiver, to charge and/or power the connected electronic device. Methods of using the system are also disclosed.