Wireless charging apparatus using multiple coils and wireless charging system comprising the same
US11469621B2 · kind B2 · utility
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20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2019 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Jul 29, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0013
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are a wireless charging apparatus in which multiple coils overlaps with one another on separated cores, and a wireless charging system including such wireless charging apparatus. According to an embodiment of the present disclosure, the wireless charging apparatus includes a plurality of plate coils spaced apart from one another, a first coil disposed on the plurality plate coils, and a second coil disposed on the first coil to partially overlap with the first coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.