公开(公告)号：US4642502A

公开(公告)日：1987-02-10

申请号：US855344

申请日：1986-04-24

申请人： Keith H. Carpenter ,  Jon E. Miller ,  John W. Murphy

发明人： Keith H. Carpenter ,  Jon E. Miller ,  John W. Murphy

IPC分类号： H02K1/27 ,  H02K1/18

CPC分类号： H02K1/278 ,  H02K2201/06

摘要： A dynamoelectric machine has a rotor or stator which comprises a core with axial groups of flat, rectangular magnet mounting surfaces, each successive magnet mounting surface of a group being circumferentially offset by a common angle of axial rotation from the previous magnet mounting surface. A magnet is mounted on each magnet mounting surface; and each magnet has a flat surface for mounting and an opposing arcuate surface to help form a cylindrical surface. Each of the magnets has the shape, when viewed radially, of a parallelogram forming a skew angle with the axis corresponding with the rotational offset of the magnet mounting surfaces to define skewed slots between skewed magnetic poles extending the substantial axial length of the core. The core may comprise polygonal lamina with the flat polygon sides grouped to form the magnet mounting surfaces; or it may comprise circular lamina with a non-magnetic sleeve having the magnet mounting surfaces. The latter provides a larger but more even air gap.

摘要翻译： 电动机具有转子或定子，该转子或定子包括具有平坦矩形磁体安装表面的轴向组的芯，每个连续的磁体安装表面周向地偏离与先前的磁体安装表面的共同的轴向旋转角度。 磁体安装在每个磁体安装表面上; 并且每个磁体具有用于安装的平坦表面和相对的弓形表面以帮助形成圆柱形表面。 每个磁体在径向观察时具有形成与磁体安装表面的旋转偏移相对应的轴线的偏斜角的平行四边形的形状，以在延伸磁芯的实质轴向长度的倾斜磁极之间形成倾斜的狭槽。 芯可以包括多边形层，其中平面多边形被分组以形成磁体安装表面; 或者其可以包括具有带有磁体安装表面的非磁性套筒的圆形薄片。 后者提供更大但更均匀的气隙。