公开(公告)号：US06700287B2

公开(公告)日：2004-03-02

申请号：US10020944

申请日：2001-12-19

Applicant: Jun Ohmura ,  Ichirou Arai

Inventor： Jun Ohmura ,  Ichirou Arai

IPC: H02K132

CPC classification number: H02K1/26 ,  H02K1/32 ,  H02K9/06

Abstract: Core sheets are progressively displaced one after the other by a predetermined displacement angle in a circumferential direction of a core in such a manner that stays of the core sheets form a plurality of stairstep-shaped guide walls. Each core sheet includes projections, recesses and a through hole, which are all arranged along a concentric circle that is concentric to a rotational axis of a rotatable shaft of a motor. The projections are arranged in a first axial end surface of the core sheet, and the recesses and the through hole are arranged in a second axial end surface of the core sheet in such a manner that each projection of the core sheet is opposed to a corresponding one of the recesses of the core sheet in the axial direction of the core.

Abstract translation: 芯片沿着芯的圆周方向一个接一个地逐渐移位预定的位移角，使得芯片的撑条形成多个阶梯形的引导壁。 每个芯片包括突起，凹槽和通孔，它们都沿着与电机的可旋转轴的旋转轴线同心的同心圆布置。 突出部布置在芯片的第一轴向端面上，并且凹部和通孔布置在芯片的第二轴向端面中，使得芯片的每个突起与相应的 芯片在芯部的轴向方向上的凹部之一。