公开(公告)号：US20240275229A1

公开(公告)日：2024-08-15

申请号：US18560423

申请日：2022-04-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YASUSHI KAMADA

IPC: H02K3/52 ,  H02K3/38 ,  H02K15/10 ,  H02K15/12

CPC classification number: H02K3/522 ,  H02K3/38 ,  H02K15/105 ,  H02K15/12 ,  H02K2203/09

Abstract: A stator includes a core, a plurality of molded coils, a bus bar, and an insulating resin. The core includes a yoke and a plurality of teeth. The plurality of teeth protrude from an inner peripheral surface of the yoke. The plurality of molded coils are arranged on the plurality of teeth. The bus bar is connected to the plurality of molded coils and can be connected to an external circuit. The insulating resin has insulation properties. The insulating resin includes a first resin portion, a second resin portion, and a third resin portion. The first resin portion molds the bus bar. The second resin portion is arranged between the plurality of teeth and the plurality of molded coils. The third resin portion molds the plurality of molded coils. The first resin portion, the second resin portion, and the third resin portion are integrally molded.

公开(公告)号：US20220255380A1

公开(公告)日：2022-08-11

申请号：US17608761

申请日：2020-04-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： NAOTO MIYAWAKI ,  TAKERU MAEKAWA ,  YASUSHI KAMADA

IPC: H02K1/28 ,  H02K1/278

Abstract: A rotor includes: a shaft; a rotor back yoke having a through hole defined in an axial center through which the shaft is inserted, the rotor back yoke being integrally and rotatably connected to the shaft; and magnets fixed to an outer peripheral surface of the rotor back yoke, the plurality of magnets being disposed with magnetic poles of different polarities being arranged alternately along a circumferential direction. The rotor back yoke includes a plurality of first cutout portions provided at predetermined intervals in the circumferential direction and extending from an inner peripheral surface of the rotor back yoke outward in a radial direction. Each of the plurality of first cutout portions extends along an axial direction, from one end surface to the other end surface of the rotor back yoke.