Ironless linear motor with parallel yokes separated by a spacer with uninterrupted bore secured with a sleeve and a screw in the sleeve
US10931188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2019 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Jul 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A secondary part of an ironless linear motor includes a spacer and two yoke plates, which are arranged in parallel to each other and carry magnets having an alternating polarity. The yoke plates are maintained at a defined distance by the spacer. The spacer has at least two uninterrupted bore holes. Sleeves having a first screw head and an internal thread are inserted through one of the yoke plates and through a respective uninterrupted bore hole, the first screw heads securing the yoke plate in place on the spacer. A screw, having a second screw head, is screwed through the other yoke plate into each sleeve so that the second screw heads secure the other yoke plate in place on the spacer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.