Centrifugal fan
    11.
    发明授权

    公开(公告)号:US10465696B2

    公开(公告)日:2019-11-05

    申请号:US15080440

    申请日:2016-03-24

    Abstract: Disclosed herein are a centrifugal fan and a refrigerator. The centrifugal fan according to an aspect of the present disclosure has a structure in which a plurality of blades disposed along a circumferential direction are disposed in two lines in a radial direction of a hub, such that the noise of the fan is reduced and the flow rate of air is increased, and the efficiency of the fan is improved, and the centrifugal fan includes a middle guide member inducing an inflow in the center of the fan, such that the inflow to the fan is prevented from being concentrated in a lower part of the fan, and a total height of a discharge port is efficiently used. Therefore, the uniformity of a component of a discharging flow at the discharge port is improved and thus the noise of the fan is reduced.

    CLEANING DEVICE
    17.
    发明申请
    CLEANING DEVICE 有权
    清洁装置

    公开(公告)号:US20150173577A1

    公开(公告)日:2015-06-25

    申请号:US14524603

    申请日:2014-10-27

    Abstract: A cleaning device includes an improved structure in which cleaning performance can be improved. The cleaning device includes an inhalation unit to generate inhalation force to inhale air into a main body, wherein the inhalation unit includes: an impeller that is rotatable; an impeller cover having an inlet damper formed therein; and a return channel coupled to the impeller cover so that the impeller can be accommodated in the return channel, wherein the return channel includes: an inner frame; and an outer frame placed at an outer side of the inner frame so as to be spaced apart from the inner frame, and a plurality of wings are disposed between the inner frame and the outer frame.

    Abstract translation: 清洁装置包括改进的结构,其中可以提高清洁性能。 清洁装置包括吸入单元以产生将空气吸入主体的吸入力,其中吸入单元包括:可旋转的叶轮; 其中形成有入口阻尼器的叶轮盖; 以及联接到所述叶轮盖的返回通道,使得所述叶轮可以容纳在所述返回通道中,其中所述返回通道包括:内框架; 以及设置在所述内框架的外侧以与所述内框架间隔开的外框架,并且在所述内框架和所述外框架之间设置有多个翼片。

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