Linear motor
US10224797B2 · kind B2 · utility
1Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2016 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | May 13, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear motor includes a field core, a stator that includes a plurality of permanent magnets disposed on the field core, and an armature core that includes an armature winding wire, the armature core being disposed via a magnetic void with the permanent magnets. Assuming that a length of the armature core in a traveling direction of the linear motor is Lc, a pitch of the permanent magnets is τp, and N is a natural number, the length Lc of the armature core is specified by (N×τp−0.2×τp)≤Lc≤(N×τp+0.2×τp).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.