Title:
軸流ファンおよびそれを備えた電子機器
Document Type and Number:
Japanese Patent JP5636792
Kind Code:
B2
Abstract:
In an axial fan, a housing includes a side wall arranged to surround an outer circumference of an impeller, and a substantially square or substantially rectangular flange arranged to project radially outward from an outer circumferential surface of the side wall. The side wall preferably includes three slit groups each including a plurality of slits arranged in a circumferential direction and arranged to extend through the side wall from an inner circumferential surface to the outer circumferential surface thereof. Two of the slit groups are defined in portions of the side wall which correspond to two adjacent corner portions in an upper half portion of the flange, while the remaining slit group is defined in a portion of the side wall which corresponds to a lower half portion of the flange. The upper and lower half portions are divided at a line parallel or substantially parallel to two opposing sides of the flange and passing through a central axis.
Inventors:
竹本 心路
大熊 仁明
石田 亮介
大熊 仁明
石田 亮介
Application Number:
JP2010171407A
Publication Date:
December 10, 2014
Filing Date:
July 30, 2010
Export Citation:
Assignee:
日本電産株式会社
International Classes:
F04D29/52