Method for manufacturing laminated iron core and apparatus for manufacturing laminated iron core
US10707015B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 16, 2017 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Aug 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2003/005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for manufacturing a laminated iron core includes setting a blanking position on a strip-shaped workpiece for iron core pieces each including a yoke piece part having a linear shape and a magnetic pole piece part extending from the yoke piece part, such that a pair of iron core pieces are opposed each other and the magnetic pole piece part of one iron core piece is arranged between adjacent magnetic pole piece parts of the other iron core piece among the pair of iron core pieces, simultaneously blanking a front end side of the magnetic pole piece part and a back surface side of the yoke piece part of the one iron core piece from the strip-shaped workpiece before simultaneously blanking those of the other iron core piece from the strip-shaped workpiece, and blanking the iron core pieces from the strip-shaped workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.