Wirelessly powered door lock systems and methods
US9876386B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 2016 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Apr 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Example wireless power transfer systems and methods are described. In one implementation, a rechargeable battery is electrically coupled to an electronic lock module. An electronic control module that is physically separate from the electronic lock module generates a wireless charging link between the electronic control module and the electronic lock module. The electronic control module transmits a charging signal to the electronic lock module via the wireless charging link, and the electronic lock module uses this charging signal to charge the rechargeable battery. The transmission frequency of the charging signal can be varied over a predetermined frequency range by a numerically controlled oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.