Ferrite-Tilted Planar Resonator for Wireless Power Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless power transmission/reception systems face inefficiencies due to varying magnetic field alignments between primary and secondary resonators, leading to degraded power transmission/reception efficiency, especially when the resonators are perpendicular to each other, making it inconvenient to charge multiple devices with stable performance.
Innovation Solution
Incorporating ferrite members on planar resonators to tilt or parallelize the magnetic field distribution, ensuring efficient electromagnetic field coupling between primary and secondary resonators, regardless of their orientation, thereby maintaining stable power transmission/reception efficiency across different device positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If wireless power transmission/reception is implemented without ferrite members, then device complexity is reduced, but power transmission/reception efficiency degrades when resonators are perpendicular to each other
Solution Approach 1:
Ferrite members are introduced as intermediary elements between the primary and secondary resonators. These ferrite members mediate the magnetic field interaction, enabling efficient power transmission even when the resonators are positioned perpendicular to each other, thus solving the alignment sensitivity problem without requiring complex control mechanisms
Solution Approach 2:
The magnetic permeability parameter is enhanced by introducing ferrite members into the resonator structure. This parameter change allows the system to maintain strong magnetic coupling and high power transmission efficiency across a wider range of relative orientations between primary and secondary resonators
2Adaptability or versatility
If multiple charging devices are provided for different electronic devices, then each device can be charged, but user burden and inconvenience increase
Solution Approach 1:
The wireless charging device is designed with universal applicability through the ferrite member configuration, enabling it to efficiently charge multiple types of electronic devices regardless of their specific orientation or position on the charging surface, thus eliminating the need for multiple device-specific charging accessories
3Adaptability or versatility
If resonators are positioned perpendicular to each other, then device placement flexibility is improved, but power transmission/reception efficiency sharply degrades
Solution Approach 1:
Ferrite members serve as magnetic field mediators that enable effective coupling between perpendicular resonators. The ferrite material concentrates and directs the magnetic flux, allowing power transmission to maintain high efficiency even when the primary and secondary resonators are positioned at right angles to each other
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 configuration ensures consistent and stable wireless power transmission/reception efficiency even when secondary resonators are disposed vertically relative to primary resonators, improving charging performance by maintaining efficiency across various device orientations and positions.
Implementation Method 1
the distribution of magnetic fields (H-fields) formed by the primary resonator and the distribution of magnetic fields formed by the secondary resonator(s)
Implementation Method 2
ensuring efficient electromagnetic field coupling between primary and secondary resonators
Implementation Method 3
Incorporating ferrite members on planar resonators to tilt or parallelize the magnetic field distribution
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Apparatuses, systems, and methods of wireless power transmission/reception are described. In one wireless power transmission/reception device, a planar resonator capable of generating magnetic fields has one or more ferrite members mounted thereon such that the magnetic fields generated by the planar resonator have an overall direction substantially tilted or parallel to its opening/face, i.e., to the plane of the planar resonator. In a wireless power reception device, the planar resonator generates magnetic fields and an induced current when being resonated by external magnetic fields; in a wireless power transmission device, the planar resonator generates magnetic fields when being supplied with power.