Wireless charging device, wireless charging system, and wireless charging method
US11381115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2021 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Mar 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The disclosure provides a wireless charging device including a metal frequency-selective box and an internal charging system disposed inside the metal frequency-selective box for wireless charging. The internal charging system includes a multi-antenna subsystem including N antenna units; N is an integer greater than 2, and the antenna units are dipole antennas, microstrip patch antennas, microstrip slot antennas, helical antennas, or dielectric resonator antennas. The N antenna units are evenly disposed, in a two-dimensional ring, on inner sides of four side faces of the metal frequency-selective box, or disposed on a three-dimensional curved surface of the entire inner side of the metal frequency-selective box. The device to be energized is disposed in the metal frequency-selective box and is surrounded by the N antenna units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.