公开(公告)号：US20030201137A1

公开(公告)日：2003-10-30

申请号：US10431263

申请日：2003-05-07

Inventor： Alan D. Crapo ,  Todd A. Walls ,  Richard E. Hartsfield JR.

IPC: B62D005/04

CPC classification number: H02K29/03 ,  B62D5/0403 ,  H02K1/2733 ,  H02K1/2773 ,  H02K1/278 ,  H02K21/16 ,  H02K2201/03 ,  H02K2201/06

Abstract: An electric power steering system for a vehicle includes a steering wheel and a steering shaft that is connected to the steering wheel. A worm gear is connected to the steering shaft. A worm is threadably engaged to the worm gear. A permanent magnet motor is connected to the worm. The permanent magnet motor includes a stator with twelve slots and a rotor with ten poles. The rotor includes one or more axial rotor sections. If more than one axial rotor section is employed, the axial rotor sections are rotationally offset. The axial rotor sections are rotationally offset by an offset angle that is equal to a cogging angle divided by the number of axial rotor sections. The rotor includes breadloaf, spoke, radial or arc permanent magnets.

公开(公告)号：US06329736B1

公开(公告)日：2001-12-11

申请号：US09446224

申请日：2000-03-24

Applicant: Christof Bernauer ,  Wofgang Krauth

Inventor： Christof Bernauer ,  Wofgang Krauth

IPC: H02K2902

CPC classification number: H02P6/08 ,  H02K3/28 ,  H02K29/03 ,  H02K2201/03

Abstract: An electronically commutated motor is described that has a stator, carrying at least two winding phases, multiple magnet poles and grooves and a rotor, in which a defined position between the rotor and the stator can be detected by way of a position sensing device. A rotation speed and power output of the motor can easily be influenced by the fact that the magnet poles have regions with air gaps of different heights from the rotor; and that onset times of a temporally successively occurring energization of the at least two winding phases can be varied in terms of the position between the rotor and the stator and/or the energization duration of the at least two winding phases.

Abstract translation: 描述了一种电子换向电动机，其具有定子，承载至少两个绕组相，多个磁极和沟槽以及转子，其中可以通过位置感测装置检测转子和定子之间的限定位置。 电动机的转速和动力输出可以容易地受到磁极具有与转子不同高度的气隙的区域的影响; 并且所述至少两个绕组相的时间上连续发生的通电的开始时间可以根据所述转子和所述定子之间的位置和/或所述至少两个绕组相的通电持续时间而变化。

公开(公告)号：US20010038253A1

公开(公告)日：2001-11-08

申请号：US09892029

申请日：2001-06-26

Applicant: MABUCHI MOTOR CO., LTD.

Inventor： Kenji Furuya ,  Toshiya Yui ,  Kazuaki Takayama ,  Hiroshi Otsubo

IPC: H02K001/24

CPC classification number: H02K15/0018 ,  H02K1/24 ,  H02K15/024 ,  H02K15/06 ,  H02K29/03 ,  H02K2201/03 ,  Y10T29/49012

Abstract: A miniature motor includes: a plurality of magnets serving as stator poles and attached to an inner surface of a motor casing having a closed-bottomed cylindrical shape; a salient-pole rotor having a core mounted on a rotor shaft and windings placed on the core; and a commutator mounted on the rotor shaft. The core includes a center portion having a hole formed therein at the center for engagement with the rotor shaft, a plurality of leg portions extending integrally and radially from the center portion in equal number with the salient poles, and a plurality of wing portions, each extending integrally and symmetrically from an end of each of the leg portions. The core comprises core laminations blanked from sheet steel and assembled together and is formed through deformation of the entire wing portions such that the radius of a circumcircle of the core coincides with a designed final radius of curvature of outer circumferential surfaces of the salient poles of the rotor.

Abstract translation: 微型电动机包括：多个用作定子极的磁体，并且附接到具有闭合圆筒形状的电动机壳体的内表面; 具有安装在转子轴上的芯和放置在芯上的绕组的凸极转子; 以及安装在转子轴上的换向器。 该芯部包括：中心部，其中央形成有与转子轴接合的中心部;多个支腿部，与中心部分一体地延伸，与凸极相等数量;以及多个翼部， 从每个腿部的端部整体地和对称地延伸。 芯部包括从薄钢板冲切并组装在一起的芯片，并且通过整个翼部的变形而形成，使得芯的外接圆的半径与设计的圆极的外圆周表面的设计的最终曲率半径重合 转子。

公开(公告)号：US6034462A

公开(公告)日：2000-03-07

申请号：US196606

申请日：1998-11-20

Applicant: Richard C. Woodward, Jr.

Inventor： Richard C. Woodward, Jr.

IPC: H02K1/06 ,  H02K1/12

CPC classification number: H02K1/06 ,  H02K2201/03

Abstract: A cylindrical or radial air gap, electrical machine is defined which comprises a circular rotor section having a serrated circular surface area mounted on a shaft with rotation means, two or more circular stator sub sections having circular serrated surface areas are assembled around the circular rotor section, which define an air gap between them. Normally after stator sub sections are assembled around the circular rotor section, end brackets or housings units are usually clamped around them.

Abstract translation: 定义了圆柱形或径向气隙，电机，其包括圆形转子部分，其具有安装在具有旋转装置的轴上的锯齿形圆形表面区域，具有圆形锯齿状表面区域的两个或多个圆形定子子部分围绕圆形转子部分 ，它们之间限定了气隙。 通常在定子子部分围绕圆形转子部分组装之后，通常将端部托架或壳体单元夹在其周围。