公开(公告)号：US20160028280A1

公开(公告)日：2016-01-28

申请号：US14337833

申请日：2014-07-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： THOMAS W. NEHL ,  LEI HAO ,  RAJEEV VYAS ,  CHANDRA S. NAMUDURI ,  MICHAEL G. REYNOLDS

IPC: H02K1/27

CPC classification number: H02K1/2773 ,  H02K1/246 ,  H02K1/276 ,  H02K1/2766

Abstract: A rotor of a permanent magnet synchronous machine includes a rotor core structure. A first set of apertures are formed in a first radial layer of the rotor core structure having a first set of permanent magnets disposed therein forming respective poles. A second set of apertures formed in a second radial layer of the rotor core structure of each pole. A third set of apertures is formed in a third radial layer of the rotor core structure. A second set of permanent magnets is inserted within the third set of apertures. A plurality of bridges each extends across a respective side of each of the third set of apertures in the third radial layer. The plurality of bridges provides structural support of the rotor core structure when operating. The plurality of bridges are integrally formed as single-piece laminations.

Abstract translation: 永磁同步电机的转子包括转子铁心结构。 第一组孔形成在转子芯结构的第一径向层中，其具有设置在其中的第一组永磁体，形成相应的极。 形成在每个极的转子芯结构的第二径向层中的第二组孔。 在转子芯结构的第三径向层中形成第三组孔。 第二组永磁体插入第三组孔内。 多个桥各自延伸穿过第三径向层中的第三组孔中的每一个的相应侧。 当操作时，多个桥提供转子芯结构的结构支撑。 多个桥整体形成为单件叠片。