3D Resonator Standing Waves Wireless Power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless power transfer (WPT) techniques face inefficiencies and limitations in distance and power delivery, requiring close proximity and precise orientation for near-field methods, while far-field techniques are inefficient and power-limited, with complex control mechanisms needed for point-to-point systems.
Innovation Solution
A three-dimensional resonator structure with an energy storage mechanism produces standing electromagnetic waves, allowing for wireless power transmission by selecting a resonant frequency that uncouples electric and magnetic fields, enabling efficient energy transfer to receivers within the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If near-field WPT techniques are used, then power transfer efficiency is improved, but transmission distance is limited and requires close proximity
Solution Approach 1:
The patent applies resonance principles to the electromagnetic field, creating a resonant coupling between transmitter and receiver coils. By tuning both coils to the same resonant frequency, the system achieves enhanced power transfer efficiency over extended distances compared to conventional near-field methods. The resonant oscillation of the electromagnetic field enables energy to be transferred more effectively across the gap between transmitter and receiver.
Solution Approach 2:
The system changes the operating parameters by using resonant frequency matching between transmitter and receiver. This parameter adjustment allows the system to operate at optimal efficiency points, enabling power transfer at distances significantly greater than traditional near-field methods while maintaining high efficiency. The resonant frequency becomes the key parameter that extends the effective transmission distance.
2Length of stationary object
If far-field WPT techniques are used, then transmission distance is improved, but power transfer efficiency deteriorates to less than 0.1%
Solution Approach 1:
The patent employs resonant coupling to bridge the gap between near-field and far-field WPT. By establishing resonance between the transmitter and receiver coils, the system achieves efficient power transfer at distances that would normally be considered far-field. The resonant oscillation creates a strong electromagnetic coupling that maintains high efficiency even as distance increases, overcoming the severe efficiency losses of conventional far-field methods.
3Loss of energy
If point-to-point far-field WPT is used, then power transfer efficiency is improved, but device complexity increases due to complex control and tracking mechanisms
Solution Approach 1:
The resonant coupling system provides a universal solution that works effectively for both near-field and extended-distance applications without requiring complex control mechanisms. The same resonant frequency matching principle applies regardless of the specific distance or orientation, simplifying the control architecture compared to point-to-point far-field systems that require active tracking and beam steering.
Solution Approach 2:
The system dynamically adapts to changes in distance and orientation through resonant coupling, maintaining efficient power transfer without requiring active tracking mechanisms. The resonant frequency matching creates a robust connection that tolerates variations in positioning, eliminating the need for complex real-time control and tracking systems required by conventional point-to-point far-field methods.
4Loss of energy
If near-field WPT is used, then power transfer efficiency is improved, but receiver orientation requirements increase
Solution Approach 1:
The resonant coupling system dynamically maintains efficient power transfer across a wide range of orientations and distances. The resonant frequency matching creates a flexible coupling that adapts to changes in receiver position and orientation, eliminating the strict alignment requirements of conventional near-field methods. Users can place receivers at various orientations and distances while maintaining good power transfer efficiency.
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
This approach enables efficient wireless power transmission over longer distances with multiple receivers, maintaining high efficiency and power delivery within a structure, regardless of device orientation, using quasi-static resonance and directional magnetic fields.
Implementation Method 1
driving a resonator that produces an electromagnetic field in a three dimensional structure; tuning at least one receiver to a resonant frequency of the electromagnetic field
Implementation Method 2
producing, at the selected resonant frequency, an electromagnetic field within the three dimensional structure
Implementation Method 3
at least one energy storage mechanism operatively coupled to the three dimensional structure
Implementation Method 4
causing electric fields and magnetic fields of the electromagnetic waves to become substantially uncoupled
Data Source
AI summary
One embodiment provides an apparatus for wireless power transmission, comprising: a resonator comprising: a three dimensional structure; and an energy storage mechanism operatively coupled to the three dimensional structure; wherein the three dimensional structure and energy storage mechanism produce standing electromagnetic waves upon driving the resonator. Other systems, methods, apparatuses, and products are described and claimed.