Wireless Power Assembly Using 500 Hz Frequency for Extended Range
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Solution Overview
Problem
Current wireless power transfer technologies face limitations in efficiently charging devices at a distance, particularly for applications like aerial vehicles, where traditional wired charging is impractical and existing wireless methods struggle with efficiency and range.
Innovation Solution
A wireless power transfer system utilizing a signal generator to produce an alternating current transmission signal of at least 500 Hz, coupled with a transmitter transducer assembly that creates an electromagnetic field, enabling power transfer to receivers equipped with dipole antennas or loop conductors, allowing for efficient charging of devices up to 20 meters away, including aerial vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional inductive charging pads are used, then devices can be charged wirelessly, but the charging efficiency decreases and range is limited when devices are placed at a distance
Solution Approach 1:
The patent changes the operating frequency parameter to at least 500 Hz, which significantly improves power transfer efficiency at extended distances compared to traditional inductive charging. This frequency parameter change enables the electromagnetic field to maintain sufficient strength over longer ranges while preserving charging efficiency.
Solution Approach 2:
The patent transitions from near-field inductive coupling to far-field electromagnetic radiation, representing a dimensional change in the operating regime. By using dipole antennas and operating at frequencies of at least 500 Hz, the system achieves power transfer over distances up to 20 meters, effectively moving from a contactless short-range solution to a long-range wireless power transmission system.
2Reliability
If wired charging connections are used, then charging reliability is high, but the method becomes impractical for aerial vehicles and mobile applications
Solution Approach 1:
The patent replaces the mechanical wired connection system with an electromagnetic field-based wireless power transmission system. By using signal generators and dipole antennas operating at frequencies of at least 500 Hz, the system achieves reliable power transfer without physical contact, making it suitable for aerial vehicles, drones, and other mobile applications where wired connections are impractical.
3Ease of operation
If existing wireless power methods are used, then wireless charging is achieved, but efficiency and range are insufficient for distances beyond close proximity
Solution Approach 1:
The patent implements a parameter change by operating at frequencies of at least 500 Hz, which fundamentally extends the effective power transfer distance from typical inductive charging ranges (centimeters to meters) to distances up to 20 meters or more. This frequency parameter adjustment, combined with dipole antenna design, maintains ease of wireless operation while dramatically increasing range.
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 system enables efficient wireless charging of devices and aerial vehicles at distances of up to 20 meters, providing a reliable and efficient power transfer solution for applications where traditional charging methods are inadequate.
Implementation Method 1
The transmitter transducer assembly may produce an electromagnetic field in a power transfer region by conducting the transmission signal
Implementation Method 2
The dipole antenna may be configured to receive a time varying electromagnetic flux in a power transfer region of an electromagnetic field transmitted from a transmitter transducer
Data Source
AI summary
A wireless power transfer system may include a transmitter transducer assembly, a signal generator and one or more power receivers. The transmitter transducer assembly may include at least one transmitter transducer. The signal generator may be operationally configured to generate an alternating current transmission signal. The one or more power receivers may be electrically connected to one or more respective loads. Each of the one or more power receivers may include a receiver transducer assembly. The receiver transducer assembly may include at least one receiver transducer. Each receiver transducer of the at least one receiver transducer may receive a time varying electromagnetic flux of the electromagnetic field transmitted from the transmitter transducer assembly and produce a second power signal. The power processor may convert the second power signal to a third power signal appropriate for the respective one or more loads.