Linear motor
US7582991B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2007 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Feb 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear motor for which armature core can readily be manufactured is provided.An armature 10 is constituted from an armature core main portion 19 and first magnetic pole constituent components 21A to 21C. The armature main core portion 19 comprises second magnetic pole portions 25A to 25D which are not wound with a winding conductor and magnetic pole connecting sections 27, and is constituted by stacking a plurality of magnetic steel sheets in an orthogonal direction D3. The first magnetic pole constituent portions 21A to 21C respectively include magnetic pole main portions 29 and winding portions 31. The magnetic pole main portion 29 includes a wound portion and a pair of non-wound portions integrally provided at each end of the wound portion. End portions of the wound portions of the first magnetic pole portion (20A to 20C) in the orthogonal direction D3 are located more inwardly than end surfaces of the second magnetic pole portions 25A to 25D in the orthogonal direction D3. A raised portion 27c of the magnetic pole connecting section 27 is engaged with a recess 29c of the non-wound portion to constitute the first magnetic pole portion (20A to 20C) from the magnetic pole main p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.