公开(公告)号：US20240266891A1

公开(公告)日：2024-08-08

申请号：US18567046

申请日：2022-05-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKIHIRO OCHIAI

IPC: H02K1/18 ,  H02K15/02 ,  H02K15/12

CPC classification number: H02K1/18 ,  H02K15/026 ,  H02K15/12

Abstract: A stator unit includes: a stator core that faces a rotor included in a molded motor; a coil that is wound around the stator core; and a molded resin that covers the stator core and the coil, in which the stator core has a rotor facing surface that faces the rotor, and the molded resin covers the rotor facing surface.

公开(公告)号：US20190068091A1

公开(公告)日：2019-02-28

申请号：US16079903

申请日：2017-02-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKIHIRO OCHIAI ,  YASUSHI KATO ,  MASAHIRO YASOHARA

IPC: H02P6/16 ,  H02K29/08

CPC classification number: H02P6/16 ,  H02K29/08 ,  H02P6/182

Abstract: A motor drive circuit includes; a rotor position detector that detects a position of a rotor and outputs a rotor position detection signal; a rotor position signal generator that generates signals P1, P2, P3, P4, P5, and P6 as a rotor position signal based on the rotor position detection signal output from the rotor position detector; a rotation direction recognition unit that recognizes a rotation direction of the rotor each time one of signals P1, P2, P3, P4, P5, and P6 is input and replaces the rotor position signal with a corrected rotor position signal; and a winding current output unit that outputs a current to a winding based on the corrected rotor position signal.