公开(公告)号：US06259176B1

公开(公告)日：2001-07-10

申请号：US09238917

申请日：1999-01-28

申请人： Kouki Isozaki ,  Naotugu Sato ,  Yuuichi Tsuda ,  Junji Rokunohe ,  Ayako Shimura

发明人： Kouki Isozaki ,  Naotugu Sato ,  Yuuichi Tsuda ,  Junji Rokunohe ,  Ayako Shimura

IPC分类号： H02K3700

CPC分类号： H02K37/12

摘要： A multi-phase outer-type permanent magnet stepping motor including a rotor constituted by a cylindrical permanent magnet assembly in which N (north) and S (south) poles are magnetized alternately on an inner circumferential surface of the rotor. Stator cores respectively having pole teeth are disposed in opposition to the N or S poles of the rotor through a predetermined gap. Further, excitation coils are wound in the stator cores for magnetizing the stator cores to thereby rotate the rotor such that, when a number of the stator cores is 3 and the magnetization pitch of the permanent magnet assembly is P, pole teeth of the stator cores are arranged so that the pole teeth of one stator core is shifted by an angle of 2P/3 from the pole teeth of an adjacent stator core.

摘要翻译： 一种多相外型永磁体步进电动机，其包括由N（北）和S（南）磁极在转子的内周面上交替磁化的圆柱形永久磁铁组件构成的转子。 分别具有极齿的定子芯通过预定间隙设置成与转子的N极或S极相对。 此外，励磁线圈缠绕在用于磁化定子铁心的定子铁芯中，从而使转子旋转，使得当多个定子铁芯为3，永磁体组件的磁化间距为P时，定子铁芯的极齿 被布置成使得一个定子芯的极齿与相邻的定子芯的极齿相差2P / 3的角度。

公开(公告)号：US06605883B2

公开(公告)日：2003-08-12

申请号：US10125381

申请日：2002-04-19

申请人： Kouki Isozaki ,  Yuichi Tsuda ,  Junji Rokunohe

发明人： Kouki Isozaki ,  Yuichi Tsuda ,  Junji Rokunohe

IPC分类号： H02K709

CPC分类号： H02K37/125 ,  H02P8/14

摘要： Disclosed is a multi-phase flat-type PM stepping motor comprising a first motor unit having a first stator unit and a first rotor unit, and a second motor unit having a second stator unit and a second rotor unit. The first stator unit has a plurality of air-core coils that are radially arranged on a first isolating magnetic disc. The first rotor unit has a plurality of permanent magnets that are alternatively magnetized in N-pole and S-pole and radially arranged on a second magnetic disc with a predetermined air gap with respect to the coil surface of the first stator unit. In the same manner, the second stator unit has a plurality of air-core coils that are radially arranged on a third isolating magnetic disc, and the second rotor unit has a plurality of permanent magnets arranged on a fourth magnetic disc. The first and second motor units are coaxial and symmetric with each other about a non-magnetic disc arranged therebetween.

公开(公告)号：US07843091B2

公开(公告)日：2010-11-30

申请号：US11459504

申请日：2006-07-24

申请人： Ayako Shimura ,  Junji Rokunohe ,  Naoyuki Kanamori

发明人： Ayako Shimura ,  Junji Rokunohe ,  Naoyuki Kanamori

IPC分类号： H02K15/12

CPC分类号： H02K7/116 ,  H02K1/145 ,  H02K3/325 ,  H02K5/08 ,  H02K5/163 ,  Y10T29/49009

摘要： A first part formed of a first material is positioned to a second part formed of a second material, which is different from the first material in degree of modification due to environmental variation, by contacting surfaces of the first and second parts. At least three projections are formed on the contact surface of the first part along a circle whose center is coincident with a reference point. Grooves are formed on the contact surface of the second part so that the respective projections are fitted therein and that have wall surfaces to which the projections can contact at the inner and outer sides of the projections. The width of the grooves is determined so that the projections contact the inner or outer wall surface of the grooves even when the first and second parts deform in different degrees due to environmental variation.

摘要翻译： 由第一材料形成的第一部分通过接触第一部分和第二部分的表面而定位到由第二材料形成的第二部分，该第二部分由于环境变化而与第一材料的改性程度不同。 在第一部分的接触面上形成有至少三个突出部，其中心与参考点重合。 沟槽形成在第二部分的接触表面上，使得各个突起嵌入其中，并且具有突起可以在突起的内侧和外侧与其接触的壁表面。 确定槽的宽度，使得即使当第一和第二部分由于环境变化而在不同程度上变形时，突起也接触凹槽的内壁或外壁表面。

公开(公告)号：US20070022597A1

公开(公告)日：2007-02-01

申请号：US11459504

申请日：2006-07-24

申请人： Ayako Shimura ,  Junji Rokunohe ,  Naoyuki Kanamori

发明人： Ayako Shimura ,  Junji Rokunohe ,  Naoyuki Kanamori

IPC分类号： H02K5/00 ,  H02K15/00

CPC分类号： H02K7/116 ,  H02K1/145 ,  H02K3/325 ,  H02K5/08 ,  H02K5/163 ,  Y10T29/49009

摘要： A first part formed of a first material is positioned to a second part formed of a second material, which is different from the first material in degree of modification due to environmental variation, by contacting surfaces of the first and second parts. At least three projections are formed on the contact surface of the first part along a circle whose center is coincident with a reference point. Grooves are formed on the contact surface of the second part so that the respective projections are fitted therein and that have wall surfaces to which the projections can contact at the inner and outer sides of the projections. The width of the grooves is determined so that the projections contact the inner or outer wall surface of the grooves even when the first and second parts deform in different degrees due to environmental variation.

摘要翻译： 由第一材料形成的第一部分通过接触第一部分和第二部分的表面而定位到由第二材料形成的第二部分，该第二部分由于环境变化而与第一材料的改性程度不同。 在第一部分的接触面上形成有至少三个突出部，其中心与参考点重合。 沟槽形成在第二部分的接触表面上，使得各个突起嵌入其中，并且具有突起可以在突起的内侧和外侧与其接触的壁表面。 确定槽的宽度，使得即使当第一和第二部分由于环境变化而在不同程度上变形时，突起也接触凹槽的内壁或外壁表面。