To provide a sensing magnet assembly for a motor improved in a coupling structure between a sensing magnet and a plate in order to avoid separation of the sensing magnet even for use at a high temperature for a long time or use under an environmental condition of drastic temperature changes.
A sensing magnet assembly for a motor comprises: a disk-shaped plate 6 into whose center a rotating shaft 3 is inserted; and a ring-shaped sensing magnet 7 which is injection-molded integrally with the plate 6 while the plate 6 is inserted in a mold, and comprises a main magnet formed in the vicinity of a peripheral surface and a sub-magnet formed in the vicinity of a through hole. The sensing magnet 7 is formed to be concentric with the plate 6 and wrap both a front surface and a rear surface of the plate 6 through the insert injection molding process.
| JP3900172 | MOTOR |
| JP2010105492 | HYBRID DRIVE DEVICE |
| JPS53805 | FAILURE DETECTOR FOR ROTARY RECTIFIER |
CHANG DONG GEUN
| JP2008206354A | 2008-09-04 | |||
| JP2009254022A | 2009-10-29 | |||
| JPH0344157Y2 | 1991-09-17 | |||
| JP3738966B2 | 2006-01-25 | |||
| JP2008253121A | 2008-10-16 |
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kenichi Nakamura