公开(公告)号：US20160215793A1

公开(公告)日：2016-07-28

申请号：US15003231

申请日：2016-01-21

Applicant: LG Electronics Inc.

Inventor： Bonchang Hwang ,  Beomsoo Seo ,  Jihye Oh

IPC: F04D29/66 ,  F04D29/28

CPC classification number: F04D29/666 ,  F04D29/281 ,  F04D29/667 ,  F04D29/681

Abstract: A centrifugal fan having improved efficiency and noise reduction includes a hub configured to have a central part combined with a rotary shaft, a shroud spaced apart from the hub, and a plurality of blades provided between the hub and the shroud. The shroud includes outer circumferential parts each connecting the trailing edges of a plurality of respective adjacent blades. Each outer circumferential part is asymmetrically formed based on the center of the outer circumferential part.

Abstract translation: 具有改进的效率和噪声降低的离心式风扇包括：毂，其配置成具有与旋转轴组合的中心部分，与轮毂间隔开的护罩，以及设置在轮毂和护罩之间的多个叶片。 护罩包括每个连接多个相应的相邻叶片的后缘的外圆周部分。 每个外圆周部分基于外圆周部分的中心不对称地形成。