公开(公告)号：US20160294240A1

公开(公告)日：2016-10-06

申请号：US15085297

申请日：2016-03-30

Applicant: NIDEC CORPORATION

Inventor： Tatsuro KAWAMOTO ,  Takayuki MIGITA ,  Takao ATARASHI ,  Masateru KAWAKAMI ,  Takahiro KIZU

IPC: H02K3/28 ,  H02K3/46 ,  H02K5/16

CPC classification number: H02K3/325 ,  H02K3/38 ,  H02K3/522 ,  H02K5/225

Abstract: A motor may include a rotor including a shaft having a central axis; a stator opposite to the rotor, and comprising coils; a bearing supporting the shaft; a metallic bearing holder covering the stator and supporting the bearing; at least one busbar on an opposite axial side of the bearing holder and including a connection terminal connected with a a coil wire extending from one of the coils; and a coil support between the stator and the bearing holder and fixed to the stator. The bearing holder may include at least one through hole. The coil support may include at least one insulating support portion comprising an opening portion. A portion of the opening portion of the insulating support portion having a smallest cross-sectional area in the opening portion lies inside of an edge of one of the through holes of the bearing holder.

Abstract translation: 马达可以包括具有中心轴的轴的转子; 与转子相对的定子，并且包括线圈; 支撑轴的轴承; 覆盖定子并支撑轴承的金属轴承座; 至少一个母线在所述轴承座的相对的轴向侧上，并且包括与从所述线圈中的一个延伸的线圈线连接的连接端子; 以及在定子和轴承座之间并固定在定子上的线圈支撑。 轴承座可以包括至少一个通孔。 线圈支撑件可以包括至少一个包括开口部分的绝缘支撑部分。 绝缘支撑部的开口部的开口部的截面积最小的部分位于轴承座的一个通孔的边缘的内侧。