CENTRIFUGAL FAN
    3.
    发明申请
    CENTRIFUGAL FAN 审中-公开
    离心风扇

    公开(公告)号:US20130164158A1

    公开(公告)日:2013-06-27

    申请号:US13611510

    申请日:2012-09-12

    IPC分类号: F04B35/04

    摘要: A side wall of a centrifugal fan includes a gap expanding portion arranged to gradually expand a gap between an impeller and the side wall from an upstream end toward a downstream end with respect to a rotation direction of a rotating portion. In the centrifugal fan, an electronic component arranging portion of a board is arranged in an area surrounded by the gap expanding portion, the impeller, and an air outlet, and accordingly does not overlap with a motor or the impeller in an axial direction. The electronic component arranging portion is arranged in an area extending, in a circumferential direction about a central axis, from a position 180 degrees upstream from a middle of the air outlet downstream to the middle of the air outlet, that is, in an area where a wind channel has a large width.

    摘要翻译: 离心式风扇的侧壁包括间隙扩张部,该间隙扩大部布置成相对于旋转部的旋转方向从上游端向下游端逐渐扩大叶轮与侧壁之间的间隙。 在离心风扇中,电子部件配置部分布置在由间隙扩展部分,叶轮和空气出口包围的区域中,因此在轴向上不与电动机或叶轮重叠。 电子部件配置部配置在从中心轴的周向延伸的区域中,从空气出口下游的中途向空气出口的中央向上游180度的位置,即在 风道宽度较大。