Quick-action bistable polarized electromagnetic actuator
US7898122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2006 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Mar 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1692
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an electromagnetic actuator comprised of a mobile assembly, a fixed ferromagnetic stator assembly, at least one electric field coil, and of at least one permanent magnet, having two stable positions of equilibrium without current at its ends of travel. The invention is characterized in that the mobile assembly has two distinct ferromagnetic armatures placed on both sides of the stator assembly and each forms, together with the stator assembly, at least one magnetic circuit, and is characterized in that the permanent magnet magnetically cooperates with one of the other ferromagnetic mobile parts in a stable position of equilibrium without current at the end of travel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.