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    FAN MOTOR
    2.
    发明公开
    FAN MOTOR 审中-公开

    公开(公告)号：US20240093689A1

    公开(公告)日：2024-03-21

    申请号：US18356549

    申请日：2023-07-21

    Applicant: LG Electronics Inc.

    Inventor： Eunji HWANG ,  Byungjik KIM ,  Sunggi KIM ,  Jisu HWANG

    IPC: F04D25/06 ,  F04D17/16 ,  F04D25/08 ,  F04D29/049 ,  F04D29/58

    CPC classification number: F04D25/0606 ,  F04D17/165 ,  F04D25/082 ,  F04D29/049 ,  F04D29/584

    Abstract: A fan motor is disclosed. The fan motor includes a heat dissipation fin. The heat dissipation fin includes an outer ring part, an inner ring part disposed inside the outer ring part, and a connection part connecting the outer ring part and the inner ring part. The inner ring part is elastically deformed to be inclined in parallel to a rotational shaft which is inclined when axial alignment between bearings is not made. Accordingly, the heat dissipation fin can reduce a temperature of the bearing while enclosing the bearing, and improve concentricity (axial alignment) of the bearing.

    BLOWER
    5.
    发明公开
    BLOWER 审中-公开

    公开(公告)号：US20240003360A1

    公开(公告)日：2024-01-04

    申请号：US18368847

    申请日：2023-09-15

    Applicant: MAKITA CORPORATION

    Inventor： Fumitoshi NUMATA

    IPC: F04D29/42 ,  F04D17/16 ,  F04D25/08

    CPC classification number: F04D29/4253 ,  F04D25/086 ,  F04D17/165

    Abstract: A blower includes a body, a motor, and a single fan configured to rotate in response to rotation of a motor shaft to discharge air through a discharge opening. The maximum rotational speed of the motor shaft is within a range of 50,000 rpm to 120,000 rpm. An area of the discharge opening is changeable by a user. The blower is configured to selectively operate in a first mode or in a second mode according to the area of the discharge opening. In the first mode, the maximum blowing force of the air discharged through the opening is within a range of 2.5 N to 5.0 N when the motor is driven at the maximum rotational speed. In the second mode, the maximum dynamic pressure of the air discharged is within a range of 30 kPa to 65 kPa when the motor is driven at the maximum rotational speed.

    BLOWER AND VACUUM CLEANER
    6.
    发明申请
    BLOWER AND VACUUM CLEANER 审中-公开

    公开(公告)号：US20180263446A1

    公开(公告)日：2018-09-20

    申请号：US15911422

    申请日：2018-03-05

    Applicant: Nidec Corporation

    Inventor： Ryosuke HAYAMITSU

    IPC: A47L9/22 ,  F04D25/08 ,  F04D25/06 ,  A47L5/22 ,  H02K11/33

    CPC classification number: A47L9/22 ,  A47L5/22 ,  F04D17/165 ,  F04D25/0606 ,  F04D25/082 ,  F04D29/4253 ,  F04D29/5813 ,  F04D29/584 ,  H02K11/33

    Abstract: A blower includes a motor that includes a shaft; an impeller; a motor housing; a blower housing that is disposed on an outer side of the impeller in a radial direction, and that opposes an outer surface of the motor housing in the radial direction with a gap therebetween; a circuit board that is disposed below the motor in an axial direction; and a circuit-board case that is disposed below the motor in the axial direction and that surrounds the circuit board. The circuit-board case includes a circuit-board-case inlet that communicate between an outer side and an inner side of the circuit-board case at an upper end portion of a circuit-board-case cylindrical portion that extends in a direction of a central axis.

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