3D RF Power Pocket Transmitter for Selective Wireless Charging
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Solution Overview
Problem
Current wireless power transmission methods are inefficient and cumbersome, requiring extra chargers or plugs, and are not suitable for portable devices due to the need for direct alignment and are affected by distance and interference, limiting mobility and portability.
Innovation Solution
A transmitter that creates a three-dimensional pocket of energy using RF signals, controlled by a micro-controller to direct and focus the waveform, allowing receivers to convert the energy into electricity without the need for wires, enabling wireless charging of multiple devices with selective range and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electromagnetic power transmission is used to charge devices wirelessly, then charging convenience is improved, but energy efficiency deteriorates due to 1/r2 power attenuation over distance
Solution Approach 1:
The patent segments the transmitted power into multiple discrete pockets distributed in three-dimensional space, each targeted at specific receiver locations. This allows the transmitter to concentrate energy precisely where needed rather than broadcasting uniformly in all directions, thereby improving energy efficiency while maintaining wireless charging convenience.
Solution Approach 2:
The patent creates localized pockets of power at specific spatial locations and depths, providing high energy density only where receivers are present. This local quality approach ensures that energy is transmitted efficiently to targeted devices without wasteful omnidirectional radiation, resolving the contradiction between convenience and energy efficiency.
2Length of stationary object
If high transmission power is used to extend charging range, then charging distance is improved, but harmful effects increase due to interference with other electronics and potential tissue heating
Solution Approach 1:
By segmenting power transmission into discrete, location-specific pockets, the system can extend charging range to multiple distances simultaneously without requiring uniformly high power levels. Each pocket contains energy at the minimum necessary level for its specific target, reducing overall harmful effects while maintaining extended operational distance.
Solution Approach 2:
The patent dynamically adjusts power transmission parameters (frequency, amplitude, phase) to create pockets at different distances and depths. This allows the system to achieve extended charging range by varying transmission parameters rather than simply increasing overall power, thereby minimizing harmful effects associated with high-power transmission.
3Ease of operation
If traditional wireless charging methods are used, then wireless power transmission is achieved, but device mobility is limited due to requirement for direct alignment between transmitter and receiver
Solution Approach 1:
The patent extends power transmission from two-dimensional planar pockets to three-dimensional volumetric pockets, allowing receivers to be powered at various depths and spatial positions around the transmitter. This dimensional expansion enables devices to move freely in three-dimensional space while maintaining wireless power reception, eliminating the need for precise alignment.
Solution Approach 2:
The patent creates a universal power field that can simultaneously serve multiple receivers at different locations, orientations, and distances. This multi-functional approach allows any device within the three-dimensional power pockets to receive power without requiring specific alignment, thereby enhancing device mobility and system adaptability.
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 transmission to multiple devices without the need for direct alignment, maintaining mobility and reducing energy wastage, while being adaptable to various environments and device locations.
Implementation Method 1
accumulating, by the transmitter, the power transmission waves at the location, thereby forming a constructive interference pattern at the location, wherein the constructive interference pattern establishes a pocket of energy
Data Source
AI summary
The embodiments described herein include a transmitter that transmits a power transmission signal (e.g., radio frequency (RF) signal waves) to create a three-dimensional pocket of energy. At least one receiver can be connected to or integrated into electronic devices and receive power from the pocket of energy. The transmitter can locate the at least one receiver in a three-dimensional space using a communication medium (e.g., Bluetooth technology). The transmitter generates a waveform to create a pocket of energy around each of the at least one receiver. The transmitter uses an algorithm to direct, focus, and control the waveform in three dimensions. The receiver can convert the transmission signals (e.g., RF signals) into electricity for powering an electronic device. Accordingly, the embodiments for wireless power transmission can allow powering and charging a plurality of electrical devices without wires.