公开(公告)号：US10826339B2

公开(公告)日：2020-11-03

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 ,  H02K3/52 ,  H02K1/14 ,  H02K29/08 ,  H02K37/14 ,  H02K1/27 ,  H02K21/24 ,  H02K11/215 ,  H02K11/33 ,  H02P6/15 ,  H02K21/14

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.