Structure of rotation detector-equipped motor and a manufacturing method thereof
US8390158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Mar 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor is provided with a rotation detector including a detection rotor and a detection stator placed to face the detection rotor. The motor further includes a motor case and a motor shaft protruding out of the motor case. The detection rotor is fixed to an end of the motor shaft. The detection rotor includes a plate and a coil provided on the plate. The plate is fixed to the end of the motor shaft. Specifically, the motor shaft includes an opening in the end. The plate has a circular disc shape and a cylindrical portion protruding in the center from the back side. The cylindrical portion is press-fitted in the opening of the motor shaft to fix the plate to the end of the motor shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.