Wireless charging device
US9762081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2013 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Sep 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides wireless charging techniques and devices for charging electronic device(s) within a closed space defined by a substantially hollow housing containing an antenna arrangement and configured to define an inner cavity for propagation of electromagnetic radiation from the antenna arrangement. The housing has an inner surface, encompassing the inner cavity, which geometry and material composition selected to define a general propagation path for the predetermined electromagnetic radiation from the antenna arrangement towards a charging zone. The inner cavity of the housing operates as a waveguide for directionally guiding the electromagnetic radiation to the charging zone and providing substantially maximal intensity of the electromagnetic radiation within the charging zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.