发明名称 |
Brushless DC motor and a method of generation power therewith |
摘要 |
An improved 10-pole 9-slot brushless DC motor used as a spindle motor used in devices, such as a computer hard disk driver or a laser scanner, is provided which reduces cogging torque and improves driving torque. The motor includes a field magnet having an annular permanent magnet which is formed of 10 magnetic poles attached to each other in a radial orientation, for generating a flux field and an armature formed by winding an armature core formed of nine slots and nine salient-poles with windings connected in three phases. Also, the field magnet of the motor is rotated by the rotating magnetic field generated by the armature windings. Since the motor has a short cycle and low cogging torque, the motor is very stable. Also, torque ripple is low and the torque characteristics as a whole are improved, thus achieving high efficiency.
|
申请公布号 |
US5804904(A) |
申请公布日期 |
1998.09.08 |
申请号 |
US19970784869 |
申请日期 |
1997.01.16 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD.;JANG, GUN-HEE |
发明人 |
PARK, NO-YEOL;JANG, SEONG-MAN;JANG, GUN-HEE;YOON, JIN-YOOK |
分类号 |
H02K29/00;H02K3/18;H02K3/28;H02K21/22;H02K29/03;(IPC1-7):H02K1/22 |
主分类号 |
H02K29/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|