Tubular linear motor
US9379599B2 · kind B2 · utility
1Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2013 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Nov 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The tubular linear motor includes an armature having a coil and a magnetic exciter having a permanent magnet provided to face the coil. The armature has a yoke that blocks a magnetic flux, teeth that partition a slot for storing the coil, and the coil that is arranged to extend over the teeth from an inner side of the slot toward the magnetic exciter while a mechanical gap is reserved between the magnetic exciter and the coil. The magnetic exciter has a plurality of permanent magnets by interposing a soft magnetic body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.