公开(公告)号：US20170040880A1

公开(公告)日：2017-02-09

申请号：US15213863

申请日：2016-07-19

Applicant: NIDEC SANKYO CORPORATION

Inventor： Masaaki ANDO ,  Tadashi TAKEDA ,  Shinichi YOSHIKAWA ,  Toshifumi TSURUTA

IPC: H02K49/10 ,  H02K7/116

CPC classification number: H02K49/102 ,  H02K7/116 ,  H02K7/1185

Abstract: A planetary gear speed reduction device may include a magnetic sun gear; a plurality of magnetic planetary gears which each revolve around the magnetic sun gear while rotating; and a magnetic internal gear arranged surrounding the multiple magnetic planetary gears from an outer circumferential side. An outside diameter of the magnetic sun gear and an outside diameter of the magnetic planetary gears may be equal.

Abstract translation: 行星齿轮减速装置可以包括磁性太阳齿轮; 多个磁性行星齿轮，其旋转时围绕磁性太阳齿轮旋转; 以及从外周侧围绕多个磁性行星齿轮布置的磁性内齿轮。 磁性太阳齿轮的外径和磁性行星齿轮的外径可以相等。