公开(公告)号：US20180123434A1

公开(公告)日：2018-05-03

申请号：US15857373

申请日：2017-12-28

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki TAKEMOTO ,  Yusuke MORIMOTO ,  Masashi MATSUDA ,  Seiya YOKOYAMA

IPC: H02K16/00 ,  H02K21/14 ,  H02K1/27 ,  H02K3/52 ,  H02K1/14 ,  H02K1/24 ,  H02K15/02 ,  H02K21/04

CPC classification number: H02K16/00 ,  H02K1/145 ,  H02K1/243 ,  H02K1/2713 ,  H02K3/525 ,  H02K3/528 ,  H02K15/022 ,  H02K21/048 ,  H02K21/145 ,  H02K2201/06

Abstract: A rotor with four axially stacked rotor cores, and a plurality of field magnets interposed between them. Each rotor core includes a rotor-side claw-shaped magnetic pole. Each rotor-side claw-shaped magnetic poles are respectively extending from and formed on each rotor core at equal angle intervals. Tip end surfaces of the first and third rotor-side claw-shaped magnetic pole abut against or are closely opposed to each other axially. Tip end surfaces of the second and fourth rotor-side claw-shaped magnetic poles abut against or are closely opposed to each other in the axial direction. The plurality of field magnets are magnetized in the axial direction such that the field magnets causes the first and third rotor-side claw-shaped magnetic poles to function as first magnetic poles, and cause the second and fourth rotor-side claw-shaped magnetic poles to function as second magnetic poles.

公开(公告)号：US20180269729A1

公开(公告)日：2018-09-20

申请号：US15562928

申请日：2016-11-29

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki TAKEMOTO ,  Shigemasa KATO ,  Masashi MATSUDA ,  Hironari SUZUKI ,  Kazunori SHIMADA ,  Sho NAKANO ,  Takahiro TSUCHIYA

IPC: H02K1/14 ,  H02K21/22 ,  H02K15/02 ,  H02K3/52

CPC classification number: H02K1/145 ,  H02K1/146 ,  H02K3/525 ,  H02K11/215 ,  H02K15/022 ,  H02K15/03 ,  H02K21/22

Abstract: A motor comprises an A-phase stator unit, a B-phase stator unit, and a rotor. The phase stator unit and the B-phase stator unit respectively contain a coil unit and a pair of stator cores, each pair of stator cores having a plurality of claw-shaped magnetic poles. The rotor comprises at least two permanent magnets facing the claw-shaped magnetic poles of the A-phase stator unit and the claw-shaped magnetic poles of the B-phase stator unit, respectively. The A-phase stator unit and the B-phase stator unit are provided side by side in the axial direction, displaced from one another by a prescribed electrical angle. The two permanent magnets are arranged side by side in the axial direction, displaced from one another by a prescribed electrical angle. The direction of displacement between the A-phase stator unit and the B-phase stator unit is the opposite of the direction of displacement between the two permanent magnets.

公开(公告)号：US20180152064A1

公开(公告)日：2018-05-31

申请号：US15541139

申请日：2016-08-18

Applicant: ASMO CO., LTD.

Inventor： Yoko TATEISHI ,  Yoshiaki TAKEMOTO ,  Masashi MATSUDA ,  Hironari SUZUKI ,  Seiya YOKOYAMA ,  Shigemasa KATO ,  Kazunori SHIMADA ,  Takahiro TSUCHIYA

IPC: H02K1/24 ,  H02K1/27 ,  H02K1/14 ,  H02P6/15 ,  H02K11/33 ,  H02K11/215

Abstract: This motor includes a two-layer rotor, a two-layer stator and a control unit. An A-phase rotor includes a pair of rotor cores and a field magnet. A B-phase rotor includes a pair of rotor cores and a field magnet. An A-phase stator includes a pair of stator cores and an A-phase winding. A B-phase stator includes a pair of stator cores and a B-phase winding. The control unit controls an A-phase input voltage applied to the A-phase winding, and a B-phase input voltage applied to the B-phase winding. The relative arrangement angle of the A-phase stator and the A-phase rotor relative to the B-phase stator and the B-phase rotor is set to an electrical angle of 90 degrees. The control unit applies a leading phase angle to the basic voltage waveforms of the A-phase input voltage and the B-phase input voltage, to set the energization width to at most 180 degrees.

公开(公告)号：US20140203677A1

公开(公告)日：2014-07-24

申请号：US14160391

申请日：2014-01-21

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki TAKEMOTO ,  Yusuke MORIMOTO ,  Masashi MATSUDA ,  Seiya YOKOYAMA

IPC: H02K1/24 ,  H02K11/00 ,  H02K16/00 ,  H02K1/14 ,  H02K1/27

CPC classification number: H02K16/00 ,  H02K1/145 ,  H02K1/243 ,  H02K1/2713 ,  H02K3/525 ,  H02K3/528 ,  H02K15/022 ,  H02K21/048 ,  H02K21/145 ,  H02K2201/06

Abstract: A rotor with four axially stacked rotor cores, and a plurality of field magnets interposed between them. Each rotor core includes a rotor-side claw-shaped magnetic pole. Each rotor-side claw-shaped magnetic poles are respectively extending from and formed on each rotor core at equal angle intervals. Tip end surfaces of the first and third rotor-side claw-shaped magnetic pole abut against or are closely opposed to each other axially. Tip end surfaces of the second and fourth rotor-side claw-shaped magnetic poles abut against or are closely opposed to each other in the axial direction. The plurality of field magnets are magnetized in the axial direction such that the field magnets causes the first and third rotor-side claw-shaped magnetic poles to function as first magnetic poles, and cause the second and fourth rotor-side claw-shaped magnetic poles to function as second magnetic poles.

Abstract translation: 具有四个轴向堆叠的转子芯的转子和插在它们之间的多个磁场磁体。 每个转子芯包括转子侧爪形磁极。 每个转子侧爪形磁极分别以相等的角度间隔从每个转子铁心延伸并形成。 第一和第三转子侧爪形磁极的尖端表面轴向抵接或相互紧密地相对。 第二转子侧爪状磁极和第四转子侧爪形磁极的前端面在轴向上抵接或紧密相对。 多个场磁体沿轴向磁化，使得磁场磁体使第一和第三转子侧爪形磁极用作第一磁极，并且使第二和第四转子侧爪形磁极 用作第二磁极。