公开(公告)号：US20200083789A1

公开(公告)日：2020-03-12

申请号：US16610949

申请日：2018-05-01

Applicant: MITSUBA Corporation

Inventor： Ryo OHORI ,  Naoki SHIODA ,  Tomoyasu SUGIYAMA ,  Masaki HAYATA

IPC: H02K29/08 ,  H02K11/215

Abstract: A brushless motor includes: a stator having a stator core and a winding; a rotor having a magnet; and a magnetic sensor for detecting the rotational position of the rotor. The rotor has a skew structure, and the magnet is skew-magnetized. The magnet has an overhang part. The magnetic sensor is disposed opposite to an axial end surface of the overhang part. The skew angle of the magnet is set in accordance with the angular deviation of sensor arrangement corresponding to motor specifications such as Δ-connection or sine wave drive in a state where the magnetic sensor is disposed at an optimum position less affected by a winding field.