Moving magnet-type actuator
US5434549A · kind A · utility
226Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1993 |
| Grant date | Jul 18, 1995 |
| Priority date | — |
| Expiry date | Jul 20, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a moving magnet type actuator, a magnet moving body including at least two permanent magnets of which same poles are confronting each other and an intermediate magnetic substance. The magnet moving body is movably arranged inside at least three coils. The at least three coils are connected so that current flows in different directions with a zone between the permanent magnets as a boundary. Whereby thrust and efficiency of the moving magnet type actuator is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.