公开(公告)号：US20230117552A1

公开(公告)日：2023-04-20

申请号：US17995654

申请日：2021-02-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTA SUZUKI ,  EIKI MORIMOTO ,  HAJIME UKAJI ,  TOSHIYUKI TAMAMURA ,  NORITAKA ASO

IPC: H02K1/276 ,  H02K1/16 ,  H02K1/28

Abstract: A rotor includes: a rotor core including a plurality of first holes and a plurality of second holes; and a plurality of first permanent magnets arranged in the plurality of first holes, wherein the first holes and the second holes are provided radially around a rotating shaft, the rotor core in each of the plurality of second holes has a radial length smaller than a radial length of the rotor core in each of the plurality of first holes, each of the plurality of second holes is located closer to an inner side in the radial direction of the rotor core with respect to a first hole adjacent to the second hole in a circumferential direction of the rotor core among the plurality of first holes, and includes a protrusion protruding toward the first hole adjacent to the second hole in the circumferential direction of the rotor core.

公开(公告)号：US20240275218A1

公开(公告)日：2024-08-15

申请号：US18568307

申请日：2022-05-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTA SUZUKI ,  NORITAKA ASO ,  TOSHIYUKI TAMAMURA ,  YUYA MAEDA

IPC: H02K1/14 ,  H02K3/32 ,  H02K3/34

CPC classification number: H02K1/146 ,  H02K3/325 ,  H02K3/34 ,  H02K2213/03

Abstract: Provided are a stator capable of substantially preventing a decrease in torque and a rotary electric machine including the stator. A stator includes a stator core, an insulator, and a coil. The stator core includes: a yoke having an annular shape; and teeth protruding from the yoke to the inside of the yoke. The insulator covers at least a part of the stator core. The insulator includes: a first face facing the coil wound around the teeth; and a second face facing the yoke. The first face is perpendicular to the protrusion direction of the teeth. The second face includes: a first perpendicular face perpendicular to the protrusion direction of the teeth; and a first inclined face inclined toward the first face with respect to the first perpendicular face. The yoke includes an inner circumferential face facing the second face.

公开(公告)号：US20210021167A1

公开(公告)日：2021-01-21

申请号：US17041019

申请日：2019-04-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUYA MAEDA ,  TOSHIYUKI TAMAMURA ,  MITSUOKI HISHIDA ,  KIYOMI KAWAMURA

IPC: H02K3/18 ,  H02K1/14 ,  H02K3/46

Abstract: A coil is a coil of a conductive wire that has a quadrangular cross section, that is spirally wound and laminated to have a series of turns including first to n-th turns (n is an integer of 3 or more), and that is provided, on at least some of the first to n-th turns in the coil, with deformed portions representing recesses each having a shape different from a shape of another portion of the conductive wire. In each of the first and n-th turns respectively lying at both ends of the series of turns, an outer surface lying on a side opposite to a center of the series of turns extends flush along with a plane intersecting the series of turns.