公开(公告)号：US08253286B2

公开(公告)日：2012-08-28

申请号：US12719896

申请日：2010-03-09

申请人： Yuji Yabuuchi ,  Jumpei Kitamura ,  Atsushi Morita ,  Hiroyoshi Teshima ,  Takuya Teramoto

发明人： Yuji Yabuuchi ,  Jumpei Kitamura ,  Atsushi Morita ,  Hiroyoshi Teshima ,  Takuya Teramoto

IPC分类号： H02K7/00

CPC分类号： F04D25/062 ,  H02K5/163

摘要： A motor includes a coming-off preventing portion including an inner circumferential edge defining a through hole, inside which a substantially cylindrical bearing housing is inserted, and being arranged axially above an insulator. The inner circumferential edge has at least two different radial dimensions. A boss portion includes a columnar portion inserted inside the through hole, and a collar portion extending radially outward from a lower end of the columnar portion. The collar portion includes an outside surface having at least two different radial dimensions, and an upper surface arranged axially opposite a bottom portion of the inner circumferential edge. The radial dimensions of the inner circumferential edge and those of the collar portion are arranged to allow the collar portion to be axially inserted through the inner circumferential edge only when the inner circumferential edge and the collar portion are arranged in a predetermined circumferential orientation relative to each other.

摘要翻译： 电动机包括防脱部分，其包括限定通孔的内周边缘，其中插入有大致圆柱形的轴承壳体，并且轴向地布置在绝缘体上方。 内圆周边缘具有至少两个不同的径向尺寸。 凸台部分包括插入在通孔内的柱状部分和从柱状部分的下端径向向外延伸的凸缘部分。 套环部分包括具有至少两个不同径向尺寸的外表面和与内圆周边缘的底部轴向相对布置的上表面。 内圆周边缘和轴环部分的径向尺寸被布置成仅当内周边缘和凸缘部分相对于每个边缘以预定的圆周方向布置时才允许轴环部分轴向插入穿过内周边缘 其他。

公开(公告)号：US09028223B2

公开(公告)日：2015-05-12

申请号：US13293154

申请日：2011-11-10

申请人： Jumpei Kitamura

发明人： Jumpei Kitamura

IPC分类号： F01D5/14 ,  H02K1/06 ,  H02K5/08 ,  F04D19/00 ,  F04D25/06 ,  H02K1/18 ,  H02K1/30 ,  H02K7/14

CPC分类号： H02K5/08 ,  F04D19/002 ,  F04D25/0606 ,  H02K1/187 ,  H02K1/30 ,  H02K7/14

摘要： In a ventilation fan of inner rotor type in which a shaft is fixed to a motor supporting portion, the shaft is held by a shaft holding portion preferably provided by, for example, a metal member. The shaft holding portion includes a cylindrical portion which is fixed to a resin of the motor supporting portion preferably by being embedded through insert molding and into which the shaft is inserted, and a shaft holding flange portion extending outwards in the radial direction from either one of an upper end or a lower end of the cylindrical portion.

摘要翻译： 在将轴固定于马达支承部的内转子型换气风扇中，轴由轴保持部保持，优选由例如金属构件构成。 轴保持部分包括圆柱形部分，其优选地通过插入成型嵌入并且轴被插入其中而固定到电动机支撑部分的树脂;以及轴保持凸缘部分，其沿径向向外延伸， 圆筒部的上端或下端。