Remote power supply, position sensor and wireless communication device for an extendable door handle
US10689880B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 7, 2018 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Jun 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for remotely supplying power, through magnetic induction, to a secondary module able to move in relation to a primary module along a predetermined path. An advantageous arrangement of the primary coils of the primary module and of a secondary coil of the secondary module furthermore allows the device to estimate the position of the secondary module. The primary coils are arranged such that: the primary coils form respective magnetic fields oriented in the same direction along their respective axes, during the movement, the inductive coupling between the first primary coil and the secondary coil evolves in the opposite way to the inductive coupling between the second primary coil and the secondary coil, the total inductive coupling existing between the primary coils and the secondary coil is substantially constant regardless of the position of the secondary coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.