Wireless Power Antenna Array Layout for Continuous Moving Power Transfer
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Solution Overview
Problem
Existing wireless power transmission systems require precise control to switch between power feeding elements, complicating device configuration due to variations in rise and fall times and detection accuracy, which can lead to power interruptions and reduced efficiency.
Innovation Solution
A wireless power transmission system using multiple power transmitting and receiving antennas arranged to minimize coupling, with a combiner to combine power, ensuring continuous power supply without instantaneous interruptions by setting antenna intervals and lengths to optimize coupling coefficients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If switching between power feeding elements is implemented to supply power to moving objects, then power can be supplied to different positions, but device complexity increases due to precise control requirements for rise and fall times and detection accuracy
Solution Approach 1:
The patent combines multiple power feeding elements into a continuous array that overlaps in their power transmission zones. This merging approach eliminates the need for switching between discrete elements, as the overlapping fields create a continuous power supply zone that naturally follows the moving object without requiring complex switching control.
Solution Approach 2:
The patent ensures continuous power supply by designing the power feeding elements to have overlapping transmission zones, creating a continuous power field along the movement path. This continuity eliminates gaps and switching transitions, maintaining uninterrupted power delivery to the moving object throughout its motion.
2Adaptability or versatility
If switching between power feeding elements is implemented, then power can be supplied to different positions, but reliability decreases due to power interruptions from switching delays
Solution Approach 1:
The patent prepares for continuous power supply in advance by designing overlapping power transmission zones before the moving object reaches transition points. The adjacent power feeding elements are already positioned and activated to provide power, eliminating the need for last-minute switching and preventing power interruptions.
Solution Approach 2:
The patent ensures continuous power supply by designing the power feeding elements to have overlapping transmission zones, creating a continuous power field along the movement path. This continuity eliminates gaps and switching transitions, maintaining uninterrupted power delivery to the moving object throughout its motion.
3Loss of energy
If antenna intervals are reduced to minimize coupling, then power transmission efficiency increases, but detection accuracy of facing state decreases
Solution Approach 1:
The patent applies different spatial characteristics to different regions of the power transmission system. The overlapping zones are strategically positioned to provide strong power transmission where needed, while maintaining sufficient separation in detection zones to ensure accurate facing state detection. This local differentiation allows both high efficiency and accurate detection.
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 ensures efficient power transmission to moving objects by reducing coupling between antennas, maintaining high efficiency and continuous power supply without interruptions.
Implementation Method 1
at least one of the power receiving antennas and at least one of the power transmitting antennas are coupled by one of an electric field and a magnetic field
Implementation Method 2
a combiner configured to combine power transmitted to the power receiving antennas
Data Source
AI summary
A wireless power transmission system includes a plurality of power transmitting antennas, a plurality of power receiving antennas, and a combiner configured to combine power transmitted to the power receiving antennas. At least one of a group of the plurality of power transmitting antennas and a group of the plurality of power receiving antennas is translated in a first direction relative to the other. During the translation, at least one of the power receiving antennas and at least one of the power transmitting antennas are coupled by one of an electric field and a magnetic field.