Invention Grant
US08213114B2 Disk drive hub with motor coil wiring arrangement to reduce thickness and suppressed torque decrease
失效
具有电机线圈布线布置的磁盘驱动器集线器，以减小厚度并抑制转矩减小
- Patent Title: Disk drive hub with motor coil wiring arrangement to reduce thickness and suppressed torque decrease
- Patent Title (中): 具有电机线圈布线布置的磁盘驱动器集线器，以减小厚度并抑制转矩减小
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Application No.: US12545751Application Date: 2009-08-21
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Publication No.: US08213114B2Publication Date: 2012-07-03
- Inventor: Takanori Watanabe , Hiroshi Iwai , Tomoyuki Tashiro
- Applicant: Takanori Watanabe , Hiroshi Iwai , Tomoyuki Tashiro
- Applicant Address: JP Fujieda-shi, Shizuoka
- Assignee: Alphana Technology Co., Ltd.
- Current Assignee: Alphana Technology Co., Ltd.
- Current Assignee Address: JP Fujieda-shi, Shizuoka
- Agency: Fulwider Patton LLP
- Main IPC: G11B17/02
- IPC: G11B17/02
Abstract:
The disk drive device includes a base member, a hub, a bearing unit which is arranged on the base member and which rotatably supports the hub, and a spindle drive unit which drives the hub to rotate. The spindle drive unit includes a stator core having a salient pole, a coil wound around the salient pole and a magnet opposed to the salient pole. The hub formed of magnetic material includes an outer cylinder portion engaged with an inner circumference of a recording disk and an inner cylinder portion to which an outer circumference of the magnet is fixed. The diameter of the inner cylinder portion is larger than the diameter of the outer cylinder portion.
Public/Granted literature
- US20110043948A1 DISK DRIVE DEVICE WITH HUB Public/Granted day:2011-02-24
Information query
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