Efficiencies and flexibilities in inductive (wireless) charging
US11201500B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2018 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Aug 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2300/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charger or power supply is provided that effects substantially continuous charging to one or more devices and/or batteries, on a surface of the charger or power supply. The charger or power supply comprises: a plurality of coils arrayed in one or multiple layers to provide substantially continuous charging or to supply wireless power over an effective charging area of the surface of the charger or power supply, wherein the effective charging area is larger than a single coil surface area, and the coils are arrayed such that any location on the effective charging area is at a distance equal to or less than a radius or a side-to-center length of at least one coil. Ferromagnetic and/or electrically conductive layers or structures positioned within the charger or power supply shield components within the charger or power supply (or shield the nearby environment of the charger or power supply).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.