Air conditioner
    9.
    发明授权

    公开(公告)号:US11466873B2

    公开(公告)日:2022-10-11

    申请号:US16593913

    申请日:2019-10-04

    Abstract: An air conditioner according to the disclosure includes a blowing fan including a suction port, a bell mouth formed along a circumferential direction of the suction port, and a fan guard extending from an inner circumferential surface of the bell mouth and covering the suction port, wherein the fan guard includes a plurality of annular ribs arranged concentrically with a gap from a center of the fan guard corresponding to a rotation axis of the blowing fan, the plurality of annular ribs includes a first annular rib adjacent the outermost edge of the fan guard and the first annular rib is arranged to be inclined to the rotation axis in a direction corresponding to the tangent line of the bell mouth.

    Centrifugal fan and air conditioner having the same

    公开(公告)号:US09624932B2

    公开(公告)日:2017-04-18

    申请号:US14220809

    申请日:2014-03-20

    Abstract: An air blowing unit of an air conditioner includes a housing to guide suction and discharge of air, a centrifugal fan positioned inside the housing, and a motor to drive the centrifugal fan. The centrifugal fan includes a base coupled to a motor shaft coupled to the motor, a plurality of blades disposed spaced apart from each other in a circumferential direction of the base to guide air introduced in an axial direction of the base to the circumferential direction, a leading edge provided to the blades and arranged close to the motor shaft, a trailing edge provided to the blades and facing in an outer circumferential direction of the base, and at least one first blade of the blades, the leading edge of the first blade being shorter than the leading edge of the other blades.

Patent Agency Ranking