公开(公告)号：US08133022B2

公开(公告)日：2012-03-13

申请号：US12345864

申请日：2008-12-30

申请人： Yusuke Yoshida ,  Hidenobu Takeshita ,  Hidefumi Kawakami

发明人： Yusuke Yoshida ,  Hidenobu Takeshita ,  Hidefumi Kawakami

IPC分类号： F01D1/00 ,  F01D1/04

CPC分类号： F04D29/522 ,  F04D25/0613

摘要： An axial fan includes a motor section, an impeller, a housing, and a plurality of supporting ribs. The motor section and the impeller are disposed on the inside of the housing. In a connecting region between an inner end portion of the supporting rib and the base section, a first corner portion and a second corner portion are formed on the side of a rotational direction of the impeller and on the side opposite to the rotational direction, respectively. A curvature radius of the first corner portion is larger than a curvature radius of the second corner portion.

摘要翻译： 轴流风扇包括马达部分，叶轮，壳体和多个支撑肋。 马达部分和叶轮设置在壳体的内侧。 在支撑肋的内端部和基部之间的连接区域中，分别在叶轮的旋转方向和与旋转方向相反的一侧分别形成第一角部和第二角部 。 第一角部的曲率半径大于第二角部的曲率半径。