Method of magnetizing rotor of motor
US4748535A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1987 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Jan 30, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F13/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of magnetizing a rotor of a motor including the rotor made of an integrated magnet member and a stator is provided. Predetermined magnetic fields are preliminarily applied to the rotor to form magnetic paths and thereafter, the rotor is demagnetized. Then, the rotor is assembled into the stator. The rotor and stator are positioned such that the directions of the magnetic fields which are generated from the stator winding of the stator coincide with the directions of the magnetic paths of the rotor. Subsequently, in the state in which both of the rotor and stator are positioned, a current is supplied to the stator winding and the magnetic fields are generated, thereby magnetizing the rotor by the magnetic fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.