公开(公告)号：US20040207280A1

公开(公告)日：2004-10-21

申请号：US10419620

申请日：2003-04-21

Applicant: Eaton Corporation

Inventor： Jian Luo ,  Jose Antonio Hernandez ,  Maria Hernandez ,  John Laskowsky

IPC: H02K021/12

CPC classification number: H02K1/278 ,  H02K29/03 ,  H02K2201/06

Abstract: A brushless DC permanent magnet motor having a step skewed rotor including a rotor shaft having a portion having a substantially uniform cross sectional configuration defined by N planar sides of substantially equal length and width wherein N is equal to the number of poles of the motor, first and second annular sets of N number of substantially identically shaped bread loaf magnets one of which is attached to each of the N planar sides of the rotor shaft wherein the magnets of the first set have their orientation reversed with respect to the magnets of the second set and the magnets of the first set are offset or skewed by a predetermined skew angle from the magnets of the second set of magnets to form a stepped skewed rotor.

Abstract translation: 一种无刷直流永磁电动机，其具有阶梯式偏转转子，其包括转子轴，该转子轴具有由基本相等的长度和宽度的N个平面侧限定的基本上均匀的横截面构造的部分，其中N等于电动机的极数， 以及N个基本上相同形状的面包磁铁的第二环形组，其中一个安装在转子轴的N个平面侧中的每一个上，其中第一组的磁体相对于第二组的磁体具有相反的方向 并且第一组的磁体与第二组磁体的磁体偏移或倾斜预定的倾斜角度，以形成阶梯式偏斜转子。