Title:
モータの電機子、モータおよび記録ディスク駆動装置
Document Type and Number:
Japanese Patent JP4665593
Kind Code:
B2
Abstract:
The wire winding height of the first teeth over which the head portion moves is lower than the wire winding height of the second teeth over which is out of the moving range of the head portion. The first wire winding portion is formed so as to be radially longer than the second wire winding portion. With the configuration mentioned above, the number of winding of the wire around the first teeth (243a) is maintained without reducing the torque and varying the uniformity of the magnetic force in the circumferential direction which the stator generates.
Inventors:
Kento Tamaoka
Application Number:
JP2005118270A
Publication Date:
April 06, 2011
Filing Date:
April 15, 2005
Export Citation:
Assignee:
Nidec Corporation
International Classes:
H02K3/18; G11B19/20; H02K1/14; H02K21/16
Domestic Patent References:
| JP744991A | ||||
| JP11110896A | ||||
| JP4178153A | ||||
| JP2004282900A | ||||
| JP20018426A | ||||
| JP249374U | ||||
| JP1132466A | ||||
| JP200176417A | ||||
| JP2003324864A | ||||
| JP2006304397A | ||||
| JP2003324863A | ||||
| JP10225028A |
Foreign References:
| WO2002019498A1 |
Attorney, Agent or Firm:
Masahiro Matsusaka