公开(公告)号：US4568846A

公开(公告)日：1986-02-04

申请号：US546210

申请日：1983-10-28

申请人： Shailesh C. Kapadia

发明人： Shailesh C. Kapadia

IPC分类号： H02K1/27 ,  H02K21/46 ,  H02K21/12

CPC分类号： H02K1/2773 ,  H02K21/46

摘要： A permanent magnet rotor has a plurality of high performance permanent magnets supported in each set of a plurality of stacked rotor laminations of magnetic material, with holding laminations at each end of each set of the stacked rotor laminations enclosing the magnets. Bolts extend through aligned holes in all of the laminations to enable nuts to be attached, to form a stacked and bolted assembly. The magnets are preferably radially disposed and equiangularly spaced from each other. A groove is disposed in each of the laminations between a non-magnetic shaft and the inner end of each of the magnets to reduce flux leakage. An electrically conducting and non-magnetic material is disposed at the outer end of each of the magnets, to reduce flux leakage. In another embodiment, four high performance magnets are supported in each set of a plurality of stacked rotor laminations of magnetic material about a magnetic shaft, so that the two separate pairs of magnets of each set cooperate to produce two separate fields of flux.

摘要翻译： 永磁转子具有多个高性能永久磁铁，每个磁性材料叠层的转子叠层中每一组都支撑着高性能的永久磁铁，并且每个堆叠的转子叠层的每个端部都保持叠层。 螺栓延伸穿过所有叠片中的对准的孔，以使螺母能够被连接，以形成堆叠和螺栓连接的组件。 磁体优选地径向设置并且彼此等角地间隔开。 在非磁性轴和每个磁体的内端之间的每个叠片中设置有凹槽以减少漏磁。 在每个磁体的外端设置导电和非磁性材料，以减少漏磁。 在另一个实施例中，四个高性能磁体在磁性材料的多个层叠的转子叠片的每一组中围绕磁性轴被支撑，使得每一组的两个分开的磁体对共同产生两个分开的磁通场。