公开(公告)号：US20170294813A1

公开(公告)日：2017-10-12

申请号：US15468789

申请日：2017-03-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seong-taek LIM ,  Sung-il KIM ,  Hyung-chul LEE ,  Jun-seok KIM ,  Tae-ho YOON

IPC: H02K1/27 ,  H02K3/32 ,  H02K21/14 ,  H02K1/14

CPC classification number: H02K1/2706 ,  H02K1/146 ,  H02K1/2766 ,  H02K3/325 ,  H02K21/145

Abstract: An interior permanent magnet motor includes a stator comprising a hollow and a plurality of coils provided around the hollow; and a rotor rotatably disposed in the hollow of the stator and comprising a plurality of permanent magnets therein. Each of the plurality of permanent magnets of the rotor comprises a central permanent magnet; a pair of side permanent magnets provided at opposite ends of the central permanent magnet to be inclined toward an outer circumferential surface of the rotor; and a pair of bathers provided between the central permanent magnet and the pair of side permanent magnets, a thickness of each of the pair of bathers is equal to or greater than a thickness of the central permanent magnet. The thickness of the central permanent magnet is greater than a thickness of each of the pair of side permanent magnets.