Core and motor having the same
US8476802B2 · kind B2 · utility
1Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2011 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Jul 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/345
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a core including a plurality of core layers in a laminated structure formed through one-directional press shearing and having an insulating layer formed on the surface thereof prevented from being damaged by burrs formed through the press shearing when a winding coil is wound on and around the core, and a motor having the core. The core for a motor includes: a plurality of core plates having a laminated structure formed through one-directional press shearing; and a chamfered portion formed on at least some of the corners of a face opposed to one face of the core plate to which force is applied by the press shearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.