Electromagnetic force driving device
US9214266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Sep 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/0289
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic force driving device having reduced size and weight, and easily changeable electromagnetic characteristics and holding force, is provided. The device includes: a first housing; a second housing installed under the first housing; a partitioning wall partitioning the first and second housings; a first mover installed on a top of the first housing; a coil unit installed at a lower portion of the second housing to be movable according to a direction of current supplied; a second mover including one end combined with the coil unit, and another end passing through the partitioning wall and connected to the first mover to operate the first mover according to a movement of the coil unit; an upper magnet installed in the first housing to maintain a predetermined position of the first mover; and a lower magnet arranged in the second housing to form a magnetic field at the coil unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.