公开(公告)号：US07358637B2

公开(公告)日：2008-04-15

申请号：US11267110

申请日：2005-11-04

Applicant: Kevin Lee Tapper

Inventor： Kevin Lee Tapper

IPC: H02K1/27 ,  H02K1/28

CPC classification number: H02K1/2773

Abstract: The present invention is a method of compressing lamination stacks for a permanent magnet rotor. The method includes the steps of providing a plurality of stages of lamination stacks and magnet carriers on a rotor shaft to form an assembly; positioning a spacer between each of the lamination stacks of each of the plurality of stages; and fitting a retainer plate with a groove at each end of the assembly. The groove allows a centrifugal force to deflect a top of the retainer plate inward toward the spacers and the spacers are milled to a size that is slightly wider than an axial gap between the lamination stacks of each stage. The groove on the retainer plates has a depth and radial position that determines the extent to which the top of the retainer plate deflects towards the spacers.

Abstract translation: 本发明是一种用于压缩永久磁铁转子的叠片的方法。 该方法包括以下步骤：在转子轴上提供多层叠片和磁体载体以形成组件; 将间隔物定位在所述多个级中的每一个的每个叠片之间; 并在组件的每个端部装配具有凹槽的保持板。 凹槽允许离心力将保持板的顶部向内偏转到间隔件，并且间隔件被研磨成比每个层的层压叠层之间的轴向间隙稍宽的尺寸。 保持板上的凹槽具有深度和径向位置，其确定保持板的顶部朝向间隔件偏转的程度。