Rotary motor and production method thereof, and laminated core and production method thereof
US6323571A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Jul 11, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2211/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to provide a low cost, high performance, thin structure rotary motor for driving medium used in magnetic disk drive unit, optical disk drive unit or the like, in order to improve the productivity of terminating processing and the reliability of the coils. Magnetic materials which are divided to a plurality of blocks or divided corresponding to respective magnetic pole teeth are connected by means of thin portions. The respective magnetic pole teeth are wound continuously with wire without cutting the wire at the positions in which the thin portions are connected. When a stator is assembled, a plurality of blocks or magnetic pole teeth are disposed on a substrate by separating or bending the thin portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.