公开(公告)号：US20120091845A1

公开(公告)日：2012-04-19

申请号：US13274082

申请日：2011-10-14

申请人： Yoshiaki TAKEMOTO ,  Shinji SANTO ,  Kenta GOTO ,  Shigemasa KATO

发明人： Yoshiaki TAKEMOTO ,  Shinji SANTO ,  Kenta GOTO ,  Shigemasa KATO

IPC分类号： H02K21/12

CPC分类号： H02K1/276 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

摘要： A brushless motor includes a rotor and a stator. The rotor is provided with a rotor core including a plurality of magnet poles and a plurality of core poles. A void is formed at a boundary between each core pole and an adjacent magnet pole in the circumferential direction. Each magnet pole includes a peripheral core portion located closer to the stator than the magnet in the radial direction of the rotor. The void formed in at least one of two circumferential sides of each magnet pole includes an extended void region that extends into the peripheral core portion toward a middle point of the magnet pole in the circumferential direction.

摘要翻译： 无刷电动机包括转子和定子。 转子设置有包括多个磁极和多个芯极的转子芯。 在圆周方向上的每个芯极和相邻磁极之间的边界处形成空隙。 每个磁极包括在转子的径向方向上比磁体更靠近定子的周边芯部。 形成在每个磁极的两个周向侧中的至少一个中的空隙包括延伸的空隙区域，其沿周向方向延伸到磁极的中点。

公开(公告)号：US20110204833A1

公开(公告)日：2011-08-25

申请号：US13028990

申请日：2011-02-16

申请人： Shinji SANTO ,  Seiya YOKOYAMA ,  Yoji YAMADA ,  Yoshiaki TAKEMOTO ,  Shigemasa KATO ,  Kenta GOTO

发明人： Shinji SANTO ,  Seiya YOKOYAMA ,  Yoji YAMADA ,  Yoshiaki TAKEMOTO ,  Shigemasa KATO ,  Kenta GOTO

IPC分类号： H02P6/10

CPC分类号： H02P21/05

摘要： A controller for use with a motor including a stator, around which three-phase coils are wound, and a rotor, which includes a magnet functioning as a first magnetic pole and a salient pole of a core functioning as a second magnetic pole. The controller supplies the three-phase coils with excitation currents having a predetermined phase difference from one another to drive and rotate the rotor. The controller includes a current adjustment unit that adjusts a fundamental wave current using high-order currents for third order and ninth order components in a q-axis to reduce torque ripple. The excitation current is generated based on the fundamental wave current adjusted by the current adjustment unit.

摘要翻译： 一种与电动机一起使用的控制器，其包括缠绕有三相线圈的定子和包括用作第一磁极的磁体和用作第二磁极的芯的凸极的转子。 控制器为三相线圈提供彼此具有预定相位差的励磁电流，以驱动和旋转转子。 该控制器包括电流调节单元，该电流调节单元使用q阶中的三阶和九阶分量的高次电流调节基波电流以减小转矩波动。 基于由电流调节单元调整的基波电流产生励磁电流。