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.