Electronic lockset with multi-source energy harvesting circuit
US9644401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2016 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | May 2, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic lockset with a radio frequency harvesting circuit. In one embodiment, the electronic lockset includes a mechanical locking portion movable between a locked position and an unlocked position. One or more energy consumption devices are provided that actuate the mechanical locking portion between the locked position and the unlocked position. A rechargeable battery provides electrical power to the energy consumption devices. A radio frequency (“RF”) transmitter and RF energy harvesting circuit are used to wirelessly recharge the battery. Typically, the RF transmitter is configured to transmit at a predetermined frequency. The RF energy harvesting circuit is tuned to the predetermined frequency and is electrically coupled with the rechargeable battery to recharge the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.