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    FAN MOTOR AND MANUFACTURING METHOD THEREFOR
    12.
    发明公开
    FAN MOTOR AND MANUFACTURING METHOD THEREFOR 审中-公开

    公开(公告)号：EP3618240A1

    公开(公告)日：2020-03-04

    申请号：EP18790307.5

    申请日：2018-04-19

    Applicant: LG Electronics Inc.

    Inventor： KIM, Taekyung ,  BAEK, Seungjo ,  SONG, Sungbae ,  LEE, Jeongho ,  JUNG, Younggyu ,  CHO, Seongho

    IPC: H02K7/14 ,  A47L9/22 ,  F01P11/10

    Abstract: A fan motor according to an embodiment includes a motor housing; a rotating shaft; a rotor mounted on the rotating shaft; a stator disposed within the motor housing to surround the rotor; an impeller having at least one blade formed on an outer surface of a hub connected to the rotating shaft; an impeller cover configured to surround an outer circumference of the impeller and having an air suction inlet formed therein, wherein the impeller cover includes a shroud with an inner diameter expands in an air flow direction; and a non-metallic coating layer coated on an inner circumferential surface of the shroud and having a lower strength than that of the blade, the non-metallic coating layer includes a first area having a first thickness; a second area having a second thickness thinner than the first thickness and having a stepped portion with the first area, thereby minimizing leakage flow caused by the pressure difference from a pressure-side surface to a suction-side surface of the blade to reduce flow path loss and improving efficiency of the fan motor.

    ELECTRIC MOTOR
    14.
    发明公开
    ELECTRIC MOTOR 审中-公开

    公开(公告)号：EP3979470A3

    公开(公告)日：2022-08-03

    申请号：EP21194448.3

    申请日：2021-09-02

    Applicant: LG Electronics Inc.

    Inventor： JUNG, Taeyong ,  LEE, Jeongho ,  CHOI, Joongkeun ,  CHO, Seongho

    IPC: H02K5/20 ,  H02K7/14 ,  H02K9/06 ,  H02K1/18 ,  H02K5/173 ,  H02K9/16

    Abstract: An electric motor includes an impeller, a stator assembly, a rotor assembly, an inner flow path, and a bypass flow path. The impeller creates a flow of air introduced into the housing. The stator assembly is accommodated inside the housing. The rotor assembly is rotatably mounted inside the stator assembly. The bypass flow path is defined between an inner side of the housing and an outer side of the stator assembly, allowing the air to bypass the stator assembly along the bypass flow path. This configuration may result in minimizing flow resistance and flow loss of the air passing through the inner flow path of the electric motor.

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