Noncontact power transmitting apparatus
US5923544A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Jul 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A noncontact power transmitting apparatus which makes it possible to rapidly charge a secondary cell of a part to be charged with large electric power and realize a lightweight and compact part to be charged. A power-transmitting coil of a charging part is divided into two sets, and the power-transmitting coils of the sets are respectively wound around cores, and are formed as a first power-transmitting coil portion 26 and a second power-transmitting coil portion 27 which are separate and independent as the two sets. Meanwhile, a power-receiving coil of a part to be charged is wound around a core, and is formed as a single power-receiving coil portion 28. In a chargeable state in which the part to be charged is placed on the charging part, the power-receiving coil portion 28 is inserted in a space between the first power-transmitting coil portion 26 and the second power-transmitting coil portion 27, and the first power-transmitting coil portion 26, the power-receiving coil portion 28, and the second power-transmitting coil portion 27 are arranged in such a manner as to be aligned with each other. Windings are wound such that the polarities of the windings are adjusted so that the d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.