Monophase, short travel, electromagnetic actuator having a good electric power/force ratio
US6028499A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1996 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Feb 15, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/122
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A monophase electromagnetic actuator including at least a ferromagnetic part integral with a member movable along a direction Y, a fixed stator part made of soft magnetic material and including at least on electrical coil, and a thin transversely magnetized permanent magnet. The fixed stator part and the ferromagnetic part define between each other at least two air gaps arranged symmetrically with respect to the medial plane perpendicular to the axis of displacement of the movable member and passing through the middle of the permanent magnet. The length of the ferromagnetic part is approximately equal to the length of the permanent magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.