Multi-channel cooling for extended distance wireless power transmitter
US11310934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2020 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Apr 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power transmitter includes a transmitter antenna includes at least one coil configured to transmit the power signal to the power receiver, the at least one coil and a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the at least one coil. The power transmitter includes a housing configured for housing, at least, the transmitter antenna. The housing defines an airflow opening configured to provide an airflow to a first airflow channel and to a second airflow channel. The first and second airflow channels configured to provide the airflow to one or more of a top face of a mobile device thereon and a bottom face of the mobile device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.