Printed circuit board stator axial field rotary energy device with ferromagnetic yoke
US12224635B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2022 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Sep 10, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2211/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An axial field rotary energy device can include a housing and a rotor coupled to the housing. The rotor can include an axis of rotation and a rotor disk having a magnet. The device can include a stator that is coaxial with the rotor. The stator can include a printed circuit board having conductive layers laminated together with layers of an insulating material. Each conductive layer has coils that can carry electrical current when connected to an external voltage source. The stator is mechanically coupled to the housing, so the stator reacts to torque produced by the device. A ferromagnetic yoke is coaxial with the rotor and stator. The ferromagnetic yoke can be mechanically and thermally coupled to the stator and the housing to provide a path for magnetic flux produced by the magnet and a path to conduct heat generated by the stator from the stator to the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.