发明名称 |
Disk-rotating motor and disk-driving device |
摘要 |
A disk-rotating motor includes a rotor section including a rotor magnet attached to a rotor frame and a shaft fixed to a center of the rotor frame, and a stator section including a shaft-bearing which bears the shaft, wherein the stator section includes the shaft-bearing, a shaft-bearing housing which holds the shaft-bearing, a thrust plate which bears the shaft in an axis direction, a stator core which is arranged to face the rotor magnet and provided with wire-winding, a core holder which holds the stator core, and a bracket which holds the shaft-bearing housing. The bracket has a projecting part which fixes the shaft-bearing at a central part thereof, an inner diameter part of the shaft-bearing is press-fitted to be tightened to the projecting part, and an outer diameter part of the shaft-bearing housing is adhered to be tightened to an inner diameter part of the core holder. |
申请公布号 |
US8975797(B2) |
申请公布日期 |
2015.03.10 |
申请号 |
US201013520448 |
申请日期 |
2010.03.04 |
申请人 |
Minebea Co., Ltd. |
发明人 |
Nishikata Toshiyuki;Masuda Kumio |
分类号 |
H02K7/08;F16C33/10;F16C17/10;G11B19/20;H02K5/167;F16C35/02 |
主分类号 |
H02K7/08 |
代理机构 |
Carrier Blackman & Associates, P.C. |
代理人 |
Carrier Blackman & Associates, P.C. ;Carrier Joseph P.;Blackman William D. |
主权项 |
1. A disk-rotating motor comprising:
a rotor section including a rotor magnet attached to a rotor frame and a shaft fixed to a center of the rotor frame; and a stator section including a shaft-bearing which bears the shaft, wherein the stator section includes the shaft-bearing, a shaft-bearing housing which holds the shaft-bearing, a thrust plate which bears the shaft in an axis direction, a stator core which is arranged to face the rotor magnet and provided with wire-winding, a core holder which holds the stator core, and a bracket which holds the shaft-bearing housing, and wherein the bracket is formed with a projecting part which fixes the shaft-bearing at a central part thereof, an inner diameter part of the shaft-bearing is press-fitted to be tightened to the projecting part, and an outer diameter part of the shaft-bearing housing is adhered to be tightened to an inner diameter part of the core holder. |
地址 |
Nagano JP |