Laundry treatment apparatus
    1.
    发明授权

    公开(公告)号:US11674259B2

    公开(公告)日:2023-06-13

    申请号:US17031251

    申请日:2020-09-24

    CPC classification number: D06F39/12 D06F37/22 D06F2103/54

    Abstract: An apparatus for laundry treatment includes: a cabinet defining an entrance at one side, a drum defining a space for receiving laundry therein, a duct connected to the drum, a fan configured to move air in the drum into the duct, a heat exchange part including a heat absorption part configured to remove moisture from the air moved into the duct and a heating part configured to heat the air having passed through the heat absorption part, a compressor configured to increase a temperature of the air by compressing a refrigerant having passed through the heat absorption part, a water collecting part configured to receive the moisture removed by the heat exchange part, and a soundproof panel provided at a bottom of a base part that is located at a bottom of the cabinet.

    Outdoor fan motor driving device and air conditioner including an outdoor fan motor driving device

    公开(公告)号:US10215426B2

    公开(公告)日:2019-02-26

    申请号:US15078129

    申请日:2016-03-23

    Abstract: An outdoor fan motor driving device and an air conditioner including an outdoor fan motor driving device are provided, which may include an inverter to convert DC power into AC power according to a switching operation and to output the converted AC power to an outdoor fan motor, an output current detector to detect phase currents flowing in the outdoor fan motor, and a controller to control the inverter based on the detected phase currents. When the outdoor fan motor is rotated by external wind, in a state in which all of lower arm switching elements, among upper arm switching elements and lower arm switching elements of the inverter, are turned on before the outdoor fan motor is driven, with the result that levels of the phase currents flowing in the outdoor fan motor are between a first level and a second level, the controller may control the outdoor fan motor such that a rotational speed of the outdoor fan motor is increased while the outdoor fan motor is rotated in a first direction and then rotated in a second direction opposite to the first direction during a speed increase period of the outdoor fan motor after an alignment period during which a rotor of the outdoor fan motor is aligned when the outdoor fan motor is driven.

    CENTRIFUGAL FAN
    3.
    发明申请
    CENTRIFUGAL FAN 审中-公开

    公开(公告)号:US20170089356A1

    公开(公告)日:2017-03-30

    申请号:US15274729

    申请日:2016-09-23

    Abstract: A centrifugal fan includes: an impeller configured to suction or discharge air; a motor configured to rotate the impeller; a housing configured to accommodate the impeller and have a suction port through which air is suctioned by rotation of the impeller and a discharge port through which air is discharged by rotation of the impeller; and a cut-off portion formed on one side of the discharge port. A flow cross-sectional area of air flowing in the housing is gradually increased from the cut-off portion to the discharge port in an air flow direction, and a distance from a lower portion of the impeller to an inner peripheral surface of the housing in a rotational axis direction of the impeller is gradually increased in at least a portion from the cut-off portion to the discharge port in the air flow direction.

    Centrifugal fan
    5.
    发明授权
    Centrifugal fan 审中-公开

    公开(公告)号:US10670047B2

    公开(公告)日:2020-06-02

    申请号:US15274729

    申请日:2016-09-23

    Abstract: A centrifugal fan includes: an impeller configured to suction or discharge air; a motor configured to rotate the impeller; a housing configured to accommodate the impeller and have a suction port through which air is suctioned by rotation of the impeller and a discharge port through which air is discharged by rotation of the impeller; and a cut-off portion formed on one side of the discharge port. A flow cross-sectional area of air flowing in the housing is gradually increased from the cut-off portion to the discharge port in an air flow direction, and a distance from a lower portion of the impeller to an inner peripheral surface of the housing in a rotational axis direction of the impeller is gradually increased in at least a portion from the cut-off portion to the discharge port in the air flow direction.

    Centrifugal fan
    6.
    发明授权

    公开(公告)号:US10428838B2

    公开(公告)日:2019-10-01

    申请号:US15277714

    申请日:2016-09-27

    Abstract: A centrifugal fan includes: a housing; an impeller which is mounted in the housing; a hub which is provided in the impeller and is rotated by a driving force of a motor; and a plurality of blades which radially extend at the hub. Each of the plurality of blades is formed to have a shape curved from a leading edge to a trailing edge in a rotational direction of the impeller in each of the plurality of blades. A farthest point from a plane connecting the leading edge and the trailing edge is defined as a peak portion. The peak portion is placed closer to the leading edge than the trailing edge.

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