公开(公告)号：US20160254713A1

公开(公告)日：2016-09-01

申请号：US15033239

申请日：2014-01-06

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Shinichi YAMAGUCHI ,  Yoshiki MAEDA ,  Kazuaki ANDO ,  Koki NAKA ,  Masaya HARAKAWA

IPC: H02K1/27

CPC classification number: H02K1/278 ,  H02K21/14 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

Abstract: A permanent magnet rotary electric machine includes: a stator in which a plurality of teeth and a plurality of slots are formed on an inner periphery of a cylindrical stator core, and a winding wire is wound around the teeth so as to be disposed in the slots; and a rotor disposed in a hollow portion of the stator with an air gap between the rotor and the stator. In the rotor, 2n or more (n is a natural number equal to or larger than 1) radial projections are provided on an outer periphery of a rotor core, and a ferrite magnet is disposed between adjacent projections. A radial height of the projection is less than a thickness of middle of the ferrite magnet.

Abstract translation: 一种永久磁铁旋转电机，其特征在于，具有：定子，其中在所述圆筒形定子铁芯的内周上形成有多个齿和多个狭缝，并且缠绕在所述齿周围的绕组线布置在所述槽中 ; 以及转子，其设置在定子的中空部分中，在转子和定子之间具有气隙。 在转子中，2n以上（n为1以上的自然数），在转子铁心的外周设有径向突起，铁素体磁铁配置在相邻突起之间。 突起的径向高度小于铁氧体磁体的中间厚度。

公开(公告)号：US20180019628A1

公开(公告)日：2018-01-18

申请号：US15548444

申请日：2016-01-28

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Kazumasa ITO ,  Shinichi YAMAGUCHI ,  Haruyuki KOMETANI ,  Masatsugu NAKANO ,  Norihiro ACHIWA ,  Yoshiki MAEDA ,  Masaya HARAKAWA

IPC: H02K1/24

CPC classification number: H02K1/246 ,  H02K1/22 ,  H02K1/24 ,  H02K1/276 ,  H02K29/03 ,  H02K2213/03

Abstract: With regard to an end portion shape of a slit formed in a rotor core in which flux barriers are formed in a circumferential direction in an identical number to the number of poles by arranging one or more slits and core layers alternately in a radial direction, an end portion of a slit is shaped such that, when mg is set as the number of slit end portions, ni is set as a natural number no smaller than 1, α and β are set as numbers within a range of −¼ to ¼, q is set as a natural number no smaller than 1, and Ns is set as the number of slots, intervals δgi and εgi from a first slit end to an ith slit end of a slit wall on an identical circumferential direction side satisfy specific mathematical formulae.