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：US06531803B2

公开(公告)日：2003-03-11

申请号：US10102854

申请日：2002-03-22

Applicant: Haruyuki Kometani ,  Yoshihito Asao ,  Masahiko Fujita ,  Katsumi Adachi

Inventor： Haruyuki Kometani ,  Yoshihito Asao ,  Masahiko Fujita ,  Katsumi Adachi

IPC: H02K122

CPC classification number: H02K1/243 ,  H02K19/22 ,  H02K2201/06

Abstract: The generator comprises a stator core 4 in which a three-phase stator coil 5 is wound and inserted into slots, a first rotor core 8 and a second rotor core 9 which are provided in the side of an inner diameter of this stator core 4 and rotate with a rotating shaft 7, a field coil 10 for magnetizing these first and second rotor cores 8 and 9 in different magnetic poles, and a plurality of magnetic poles 23 and 24 which are provided so as to extend to an axial direction of the rotating shaft 7 from the first and second rotor cores 8 and 9 and are arranged so as to have engagement alternately through predetermined gaps 25 and 26 between the magnetic poles and are opposite to the surface of the inner diameter of the stator core 4, and it is configured so that these magnetic poles 23 and 24 have a plurality of parts 23a, 24a and 23b, 24b in the axial direction and are stepwise formed and the respective parts are set to different widths in a rotational direction.

公开(公告)号：US20020096964A1

公开(公告)日：2002-07-25

申请号：US10102854

申请日：2002-03-22

Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

Inventor： Haruyuki Kometani ,  Yoshihito Asao ,  Masahiko Fujita ,  Katsumi Adachi

IPC: H02K001/22

CPC classification number: H02K1/243 ,  H02K19/22 ,  H02K2201/06

Abstract: The generator comprises a stator core 4 in which a three-phase stator coil 5 is wound and inserted into slots, a first rotor core 8 and a second rotor core 9 which are provided in the side of an inner diameter of this stator core 4 and rotate with a rotating shaft 7, a field coil 10 for magnetizing these first and second rotor cores 8 and 9 in different magnetic poles, and a plurality of magnetic poles 23 and 24 which are provided so as to extend to an axial direction of the rotating shaft 7 from the first and second rotor cores 8 and 9 and are arranged so as to have engagement alternately through predetermined gaps 25 and 26 between the magnetic poles and are opposite to the surface of the inner diameter of the stator core 4, and it is configured so that these magnetic poles 23 and 24 have a plurality of parts 23a 24a and 23b, 24b in the axial direction and are stepwise formed and the respective parts are set to different widths in a rotational direction.

Abstract translation: 发电机包括定子铁芯4，其中三相定子线圈5被卷绕并插入槽中，第一转子铁芯8和第二转子铁芯9设置在该定子铁心4的内径侧; 用旋转轴7旋转，用于将这些第一和第二转子铁芯8和9磁化在不同磁极中的励磁线圈10以及设置成沿旋转轴线方向延伸的多个磁极23和24 轴7从第一转子芯8和第二转子芯9延伸，并且被布置成在磁极之间通过预定的间隙25和26交替地形成并且与定子铁心4的内径的表面相反， 被配置为使得这些磁极23和24在轴向上具有多个部分23a 24a和23b，24b并且被逐步形成，并且各个部分在旋转方向上设定为不同的宽度。

公开(公告)号：US20020047426A1

公开(公告)日：2002-04-25

申请号：US09850477

申请日：2001-05-07

Inventor： Stephen L. Pop SR.

IPC: H02K021/12

CPC classification number: H02K1/2773 ,  H02K5/173 ,  H02K5/225 ,  H02K7/04 ,  H02K7/20 ,  H02K15/03 ,  H02K21/14 ,  H02K2201/06 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49078 ,  Y10T29/53143

Abstract: An electric motor including a permanent-magnet rotor having embedded magnets held in place by several segments. The embedded magnets are secured by segments including non-circular openings near their centers. Several non-magnetic, non-conductive bars extend through the non-circular openings of the segments to secure the segments in relation to the shaft. The motor is capable of producing high torque while only requiring a minimum amount of space.

Abstract translation: 一种电动机，其包括永磁转子，其具有通过若干段保持在适当位置的嵌入式磁体。 嵌入式磁体通过其中心附近的非圆形开口的片段固定。 几个非磁性非导电棒延伸穿过段的非圆形开口，以将段相对于轴固定。 电机能够产生高扭矩，而只需要最小的空间。

公开(公告)号：USRE37576E1

公开(公告)日：2002-03-12

申请号：US09573469

申请日：2000-05-17

Applicant: Charles M. Stephens ,  Wen Liang Soong

Inventor： Charles M. Stephens ,  Wen Liang Soong

IPC: H02K112

CPC classification number: H02P25/04 ,  F23N1/062 ,  F23N3/082 ,  F23N5/18 ,  F23N2025/04 ,  F23N2025/06 ,  F23N2033/04 ,  G05D13/30 ,  H02K1/146 ,  H02K1/148 ,  H02K3/18 ,  H02K29/03 ,  H02K29/08 ,  H02K2201/06 ,  H02M5/458 ,  H02P6/08 ,  H02P6/085 ,  H02P6/20 ,  H02P6/26

Abstract: A motor with positive torque parking positions. The motor includes a rotor which is rotatable about an axis of rotation and a stator in magnetic coupling relation with the rotor. The stator includes a plurality of teeth each having a radially extending shaft and an axially extending face. The faces of the stator teeth define an aperture for receiving the rotor and the faces of the stator teeth and the rotor define a air gap therebetween. Each stator tooth has a notch in its face that is approximately at least as wide as the shaft of the stator tooth so that the stator has a magnetic configuration relative to the rotor for parking the rotor in a rest position corresponding to a positive torque starting position. The motor also includes a winding on the shafts of the stator teeth and a control circuit for controlling current in the winding whereby an electromagnetic field is produced for rotating the rotor at a desired speed or torque during the operation of the motor.

Abstract translation: 具有正扭矩停车位置的电机。 电动机包括可绕旋转轴线旋转的转子和与转子呈磁耦合关系的定子。 定子包括多个齿，每个齿具有径向延伸的轴和轴向延伸的面。 定子齿的表面限定用于接收转子的孔，并且定子齿和转子的表面之间限定了气隙。 每个定子齿在其表面上具有大致至少与定子齿的轴一样宽的切口，使得定子具有相对于转子的磁性构造，用于将转子停放在对应于正转矩起始位置的静止位置 。 电动机还包括定子齿的轴上的绕组和用于控制绕组中的电流的控制电路，由此在电动机的操作期间产生用于以期望的速度或转矩旋转转子的电磁场。

公开(公告)号：US06342746B1

公开(公告)日：2002-01-29

申请号：US09364701

申请日：1999-07-30

Applicant: Charles J. Flynn

Inventor： Charles J. Flynn

IPC: H02K100

CPC classification number: H02K21/04 ,  H01F2007/208 ,  H02K1/12 ,  H02K21/44 ,  H02K33/12 ,  H02K41/03 ,  H02K2201/06

Abstract: A permanent magnet device includes a permanent magnet having north and south pole faces with a first pole piece positioned adjacent one pole face thereof and a second pole piece positioned adjacent the other pole face thereof so as to create at least two potential magnetic flux paths. A first control coil is positioned along one flux path and a second control coil is positioned along the other flux path, each coil being connected to a control circuit for controlling the energization thereof. The control coils may be energized in a variety of ways to achieved desirable motive and static devices, including linear reciprocating devices, linear motion devices, rotary motion devices and power conversion.

Abstract translation: 一种永久磁铁装置，具有：具有北极面和南​​极面的永久磁铁，具有邻近其一个极面的第一极靴和与其另一个极面相邻的第二极靴，以产生至少两个潜在的磁通路径。 第一控制线圈沿着一个磁通路径定位，第二控制线圈沿着另一磁通路径定位，每个线圈连接到用于控制其通电的控制电路。 控制线圈可以以各种方式被激励以实现期望的动力和静态装置，包括线性往复运动装置，线性运动装置，旋转运动装置和电力转换。

公开(公告)号：US06323571B1

公开(公告)日：2001-11-27

申请号：US09614126

申请日：2000-07-11

Applicant: Yuji Nakahara ,  Ken-ichi Azuma ,  Masaru Matsumoto ,  Youichi Fujita ,  Satoru Akutsu ,  Akira Hashimoto ,  Yasunori Takai ,  Tadashi Hasegawa ,  Hiroshi Miyazaki ,  Junji Kawada

Inventor： Yuji Nakahara ,  Ken-ichi Azuma ,  Masaru Matsumoto ,  Youichi Fujita ,  Satoru Akutsu ,  Akira Hashimoto ,  Yasunori Takai ,  Tadashi Hasegawa ,  Hiroshi Miyazaki ,  Junji Kawada

IPC: H02K346

CPC classification number: H02K29/03 ,  H02K1/14 ,  H02K1/146 ,  H02K1/148 ,  H02K1/185 ,  H02K3/18 ,  H02K3/28 ,  H02K3/522 ,  H02K3/524 ,  H02K5/225 ,  H02K7/14 ,  H02K11/40 ,  H02K15/022 ,  H02K15/095 ,  H02K21/14 ,  H02K21/22 ,  H02K2201/06 ,  H02K2201/09 ,  H02K2201/15 ,  H02K2203/03 ,  H02K2203/06 ,  H02K2203/12 ,  H02K2211/03

Abstract: An object of the present invention is to provide a low cost, high performance, thin structure rotary motor for driving medium used in magnetic disk drive unit, optical disk drive unit or the like, in order to improve the productivity of terminating processing and the reliability of the coils. Magnetic materials which are divided to a plurality of blocks or divided corresponding to respective magnetic pole teeth are connected by means of thin portions. The respective magnetic pole teeth are wound continuously with wire without cutting the wire at the positions in which the thin portions are connected. When a stator is assembled, a plurality of blocks or magnetic pole teeth are disposed on a substrate by separating or bending the thin portions.

Abstract translation: 本发明的目的是提供一种用于驱动磁盘驱动单元，光盘驱动单元等中使用的介质的低成本，高性能，薄结构的旋转电机，以提高终止处理的生产率和可靠性 的线圈。 被分割成多个块或对应于各个磁极齿分割的磁性材料通过薄的部分连接。 各个磁极齿连续地用线缠绕，而不会在连接薄部分的位置切断电线。 当组装定子时，通过分离或弯曲薄部分将多个块或磁极齿设置在基板上。

公开(公告)号：US06259181B1

公开(公告)日：2001-07-10

申请号：US09635849

申请日：2000-08-11

Applicant: Shinichiro Kawano ,  Hiroyuki Kiriyama ,  Yukio Honda ,  Hiroshi Sawada ,  Noriyoshi Nishiyama

Inventor： Shinichiro Kawano ,  Hiroyuki Kiriyama ,  Yukio Honda ,  Hiroshi Sawada ,  Noriyoshi Nishiyama

IPC: H02K1900

CPC classification number: H02K1/246 ,  H02K2201/06

Abstract: This invention pertains to a rotor core (6) in which a plurality of core sheets (1) are laminated on one another on a rotor shaft (4). A plurality of slits (3, 7) and a plurality of strips (2) are alternately arranged in a radial direction of each of the core sheets (1) so as to convexly confront a center of each of the core sheets (1) such that an outer peripheral rim (10) is formed between an outer peripheral edge of each of the core sheets (1) and each of opposite ends of each of the slits (3, 7). A stress concentration portion (11) which is provided at a portion (10a) of the outer peripheral rim (10) and has a width (L1) larger than that of the remaining portions of the outer peripheral rim (10).

公开(公告)号：US06252323B1

公开(公告)日：2001-06-26

申请号：US09538033

申请日：2000-03-29

Applicant: Yoshihito Nishikawa ,  Mikitsugu Suzuki ,  Takanori Ozawa ,  Mitsuhiko Matsushita

Inventor： Yoshihito Nishikawa ,  Mikitsugu Suzuki ,  Takanori Ozawa ,  Mitsuhiko Matsushita

IPC: H02K2100

CPC classification number: H02K1/278 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/06

Abstract: A revolving magnetic field type motor has a rotor and a stator. The rotor has a plurality of permanent magnets. The permanent magnets defines a plurality of rotor magnetic poles. The number of the rotor magnetic poles is “P”. The rotor has a plurality of blocks aligned in the rotor's axial direction. The number of the blocks is “m”. Each block has a set of the rotor permanent magnets. One set of the permanent magnets is offset relative to an adjacent set of the permanent magnets by a predetermined offset angle in the rotor's rotational direction. The stator has a plurality of coils, the coils defining a plurality of stator magnetic poles around the axis of the stator, the number of the stator magnetic poles being “T”. The predetermined offset angle is selected from within a range from about zero degrees/((m−1)×n) to about 22.5 degrees/((m−1)×n). The number of the rotor magnetic poles “P” is 8n (n is an integer equal to or greater than one). The number of the stator magnetic poles “T” is 9n (n is an integer equal to or greater than one). This motor reliably decreases cogging torque.

Abstract translation: 旋转磁场型电动机具有转子和定子。 转子具有多个永磁体。 永磁体限定多个转子磁极。 转子磁极的数量为“P”。 转子具有沿转子的轴向排列的多个块。 块的数量为“m”。 每块具有一组转子永磁体。 一组永磁体相对于相邻的一组永磁体在转子旋转方向上偏移预定的偏移角度而偏移。 定子具有多个线圈，线圈围绕定子的轴线限定多个定子磁极，定子磁极的数量为“T”。 从约零度/（（m-1）×n）至约22.5度/（（m-1）×n）的范围内选择预定的偏移角。 转子磁极“P”的数量为8n（n为1以上的整数）。 定子磁极“T”的数量是9n（n是等于或大于1的整数）。 该电动机可靠地减小齿槽转矩。

公开(公告)号：US06223417B1

公开(公告)日：2001-05-01

申请号：US09220257

申请日：1998-12-23

Applicant: Daniel M. Saban ,  James J. Holich ,  Harold C. Kingrey ,  Michael A. Cook ,  Peter J. Klug ,  Robert Sirois ,  Vijay P. Chahar

Inventor： Daniel M. Saban ,  James J. Holich ,  Harold C. Kingrey ,  Michael A. Cook ,  Peter J. Klug ,  Robert Sirois ,  Vijay P. Chahar

IPC: H02K1502

CPC classification number: H02K15/024 ,  H02K1/06 ,  H02K2201/06 ,  H02K2201/09 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49078

Abstract: A method for making a core for one of a rotor and a stator for use in an electric motor, the core being formed from a plurality of laminations, includes forming a predetermined number of through-material slots in a first portion of a material stock, forming at least one angled interlocking projection in the material stock, the projection having a circumferential length and being formed so that at least a portion of the projection remains integral with the material stock, cutting the material stock to define a receiving opening corresponding to the interlocking projection, the receiving opening positioned relative to the projection at an angle &phgr; that is a whole number multiple of &bgr;, where &bgr; is an angle defined as a ratio of 360 degrees to the number of slots and cutting the material stock to form a first substantially circular lamination. Second and third laminations are formed in kind. The second lamination is rotated relative to the first lamination and positioned on the first lamination such that the projection from the first lamination engages the receiving opening in the second lamination. The third lamination is positioned on and rotated relative to the second lamination in kind to form the core.

Abstract translation: 一种用于制造用于电动机的转子和定子中的一个的芯的方法，所述芯由多个叠片形成，包括在材料原料的第一部分中形成预定数量的贯穿材料槽， 在所述材料坯料中形成至少一个成角度的互锁突起，所述突起具有圆周长度并且被形成为使得所述突起的至少一部分与所述材料坯料保持一体，切割所述材料坯料以限定对应于所述互锁的接收开口 所述接收开口以β的整数倍的角度phi相对于所述突起定位，其中β是被定义为360度与所述槽数之比的角度，并且切割所述材料原料以形成第一基本上 圆形层压。 第二和第三叠片是实物形成的。 第二层压体相对于第一层压体旋转并且定位在第一层压件上，使得来自第一层压件的突起在第二层压件中接合接收开口。 第三层压体相对于第二层压体定位在其上并相对于第二层压体旋转以形成芯部。