公开(公告)号：US20150061442A1

公开(公告)日：2015-03-05

申请号：US14313097

申请日：2014-06-24

申请人： Tokyo Parts Industrial Co., Ltd.

发明人： Masahisa TUCHIYA

IPC分类号： H02K11/00

CPC分类号： H02K11/215 ,  H02K1/2786 ,  H02K21/22 ,  H02K29/08 ,  H02K2213/03

摘要： A rotor type brushless motor comprises a drive magnet having an indexing pole part that extends on one axial side thereof. This indexing pole part is formed at least in the range from the circumferential center of one north pole to the circumferential center of one adjacent south pole, and over no greater than the range from one circumferential end of the one north pole to the other circumferential end of the one south pole. A magnetic flux detector is arranged at a position axially facing the indexing pole part.

摘要翻译： 一种转子式无刷电动机包括具有在其一个轴向侧上延伸的转位磁极部分的驱动磁体。 该分度极部至少形成在从一个北极的圆周中心到相邻的南极的圆周中心的范围内，并且不大于从一个北极的一个圆周端到另一个圆周端的范围 的一个南极。 磁通检测器布置在轴向面向分度极部分的位置处。

公开(公告)号：US20170167537A1

公开(公告)日：2017-06-15

申请号：US15287029

申请日：2016-10-06

申请人： Tokyo Parts Industrial Co., Ltd.

发明人： Masahisa TUCHIYA

IPC分类号： F16C33/12 ,  H02K5/167 ,  F16C17/10

CPC分类号： F16C33/128 ,  F16C17/107 ,  F16C33/104 ,  F16C2226/12 ,  F16C2380/26 ,  H02K5/1675

摘要： A double bearing comprising an inner bearing and an outer bearing, which has a greater oil content than the inner bearing, is used as a bearing for a brushless motor. The inner bearing has an upper bearing part, a lower bearing part, and a central relief part. Gaps are provided between the bearing parts and a bearing housing, along the entire axial length of all of the bearing parts of the inner bearing.