Wireless charging device, automatic alignment method, and charging dock
US11764624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2022 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jan 21, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless charging device is provided in this application, which includes: a transmitter coil, a controller, and at least two detection coils. The at least two detection coils are located on a side of a plane on which the transmitter coil is located, and a plane on which the detection coils are located is parallel to the plane on which the transmitter coil is located. The controller is configured to: separately control the at least two detection coils to sequentially connect to an excitation power source, obtain parameters of the detection coils connected to the excitation power source, and control, based on a value difference between the parameters of the at least two detection coils, the transmitter coil to move, so that the transmitter coil aligns with a receiver coil in an electronic device. Furthermore, an automatic alignment method and a charging dock are also provided in this application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.