公开(公告)号：US20150145367A1

公开(公告)日：2015-05-28

申请号：US14556009

申请日：2014-11-28

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Chui You ZHOU ,  Jie CHAI ,  Kwong Yip POON ,  San Yuan XIAO ,  Han HE

IPC: H02K1/27 ,  H02K21/14

CPC classification number: H02K1/2773

Abstract: A rotor for a brushless motor includes a shaft, a rotor core and a number of permanent magnets. The rotor core includes inner and outer annular portions. The inner annular portion has a central hole for receiving the shaft. The outer annular portion includes a number of sector segments arranged in a ring, with adjacent sector segments defining a slot there between for receiving a corresponding permanent magnet. Radially outer ends of adjacent sector segments are interconnected by a connector. The sector segments include first sector segments and second sector segments arranged alternately. The first sector segments are separated from the inner annular portion. The second sector segments are each connected to the inner annular portion by connecting arms.

Abstract translation: 用于无刷电动机的转子包括轴，转子芯和多个永磁体。 转子芯包括内环和外环。 内环形部分具有用于容纳轴的中心孔。 外环形部分包括布置在环中的多个扇形段，相邻的扇形段在其间限定用于接收对应的永磁体的槽。 相邻扇形段的径向外端通过连接器相互连接。 扇区段包括交替布置的第一扇区段和第二扇区段。 第一扇区段与内环形部分分离。 第二扇区段通过连接臂连接到内环形部分。