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    Rotor and motor including the same
    1.
    发明授权
    Rotor and motor including the same 有权

    公开(公告)号：US10326325B2

    公开(公告)日：2019-06-18

    申请号：US15258878

    申请日：2016-09-07

    Applicant: LG ELECTRONICS INC.

    Inventor： Jangwon Lee ,  Seungsuk Oh ,  Heon Lee ,  Junho Ahn ,  Jaemin Kim ,  Dosun Kim ,  Hyounguk Nam

    IPC: H02K21/12 ,  H02K1/27 ,  H02K1/30 ,  H02K1/32

    Abstract: Disclosed are a rotor that is capable of more efficiently using magnetic flux from magnets and a motor including the same. The rotor includes a plurality of rotor cores, a plurality of magnets magnetized such that magnetic flux is formed in the circumferential direction, the magnets and the rotor cores being alternately arranged in the circumferential direction, a coupler connected to a shaft, and a rotor frame including a coupler base connected to the coupler, an extension base extending from the coupler base in the radial direction, and a rotary base extending from the extension base in the axial direction of the shaft for supporting the rotor cores and the magnets while surrounding the rotor cores and the magnets, wherein the coupler base, the extension base, and the rotary base are integrally formed by injection molding, and the rotor frame is coupled to the coupler, the rotor cores, and the magnets, and wherein the extension base is provided with crossing ribs that cross in the radial direction.

    Apparatus and method for initially driving a sensorless BLDC motor
    2.
    发明授权
    Apparatus and method for initially driving a sensorless BLDC motor 有权
    用于初始驱动无传感器BLDC电机的装置和方法

    公开(公告)号：US09479097B2

    公开(公告)日：2016-10-25

    申请号：US14221439

    申请日：2014-03-21

    Applicant: LG ELECTRONICS INC.

    Inventor： Kyelyong Kang ,  Jaemin Kim ,  Jinseok Hu ,  Shinhyun Park

    IPC: H02P6/04 ,  H02P6/20

    CPC classification number: H02P6/21 ,  H02P21/34

    Abstract: Provided is a sensorless BLDC motor apparatus for providing a drive current allowing the rotor of the BLDC motor to be aligned in a predetermined direction during an initial position setting section (or for a first period of time), and providing a drive current allowing a frequency thereof to be varied at predetermined time intervals so as to accelerate the rotational speed of the BLDC motor during an open loop section (or for a second period of time), and a method using the same.

    Abstract translation: 提供了一种无传感器BLDC电动机装置，用于提供驱动电流，其允许BLDC电动机的转子在初始位置设定部分（或第一时间段）期间沿预定方向对齐，并且提供允许频率 以规定的时间间隔进行变化，以便在开环部（或第二时间段）期间加速BLDC电动机的转速，以及使用该旋转速度的方法。

    MOTOR
    3.
    发明申请
    MOTOR 有权

    公开(公告)号：US20210313858A1

    公开(公告)日：2021-10-07

    申请号：US17135276

    申请日：2020-12-28

    Applicant: LG ELECTRONICS INC.

    Inventor： Wonjung Sung ,  Jaemin Kim ,  Gyeongjae Park ,  Jeongmin Lee

    IPC: H02K5/20 ,  H02K9/193

    Abstract: A motor according to an embodiment of the present disclosure may include a housing comprising an accommodation space and a refrigerant supply hole; a stator core disposed in the accommodation space and coupled to an inner circumferential surface of the housing; a rotor core rotatably disposed in the accommodation space; a shaft coupled to a central portion of the rotor core; and a refrigerant supply groove formed as a recess in a portion of the inner circumferential surface of the housing adjacent to a location where the inner circumferential surface of the housing is coupled to the stator core. The refrigerant supply groove may comprise a main groove communicating with the refrigerant supply hole and extending in a circumferential direction of the stator core; and a plurality of branched grooves extending in an axial direction from both sides of the main groove.

    Rotor and motor including the same
    4.
    发明授权
    Rotor and motor including the same 有权

    公开(公告)号：US10594178B2

    公开(公告)日：2020-03-17

    申请号：US15258825

    申请日：2016-09-07

    Applicant: LG ELECTRONICS INC.

    Inventor： Seungsuk Oh ,  Dosun Kim ,  Hyounguk Nam ,  Jangwon Lee ,  Heon Lee ,  Jaemin Kim

    IPC: H02K21/12 ,  H02K1/27

    Abstract: Disclosed are a rotor that is capable of more efficiently using magnetic flux from magnets and a motor including the same. The rotor includes a plurality of rotor cores, a plurality of magnets magnetized such that magnetic flux is formed in the circumferential direction, the magnets and the rotor cores being alternately arranged in the circumferential direction, a coupler connected to a shaft, and a rotor frame formed by injection molding, the rotor frame being integrally coupled to the rotor cores, the magnets, and the coupler, wherein each of the rotor cores includes a pole shoe for defining a gap between each of the rotor cores and a stator and a rotor core body having a depression formed in the side opposite to the pole shoe in the radial direction, and portions of side surfaces of corresponding ones of the magnets located at opposite sides of each of the rotor cores are exposed by the depression to define an aperture formed in the circumferential direction.

    Switching mode power supply apparatus
    6.
    发明授权
    Switching mode power supply apparatus 有权
    开关电源设备

    公开(公告)号：US09252668B2

    公开(公告)日：2016-02-02

    申请号：US13691409

    申请日：2012-11-30

    Applicant: LG Electronics Inc.

    Inventor： Jinseok Hu ,  Kyelyong Kang ,  Shinhyun Park ,  Gunil Park ,  Buhwan Ahn ,  Jaemin Kim

    IPC: H02M3/24 ,  H02M3/335 ,  H02M1/00

    CPC classification number: H02M3/24 ,  H02M3/33523 ,  H02M2001/0032 ,  Y02B70/1433 ,  Y02B70/16

    Abstract: A switching mode power supply apparatus is provided. The switching mode power supply apparatus may include a switch unit configured to switch an input voltage to a transformer and a controller configured to select an operation mode having a switching frequency according to a size of a load applied to a secondary side of the transformer and control a switching operation of the switch unit. The switching mode power supply apparatus may include a transformer. A refrigerator having the switching mode power supply apparatus is also provided.

    Abstract translation: 提供了开关模式电源装置。 开关模式电源装置可以包括：开关单元，被配置为将输入电压切换到变压器;以及控制器，被配置为根据施加到变压器的次级侧的负载的大小来选择具有开关频率的操作模式，并且控制 开关单元的切换操作。 开关模式电源装置可以包括变压器。 还提供了具有开关模式电源装置的冰箱。

    Robot cleaner
    9.
    发明授权
    Robot cleaner 有权

    公开(公告)号：US12251075B2

    公开(公告)日：2025-03-18

    申请号：US17597368

    申请日：2020-07-02

    Applicant: LG ELECTRONICS INC.

    Inventor： Jaemin Kim

    IPC: A47L9/28 ,  A47L9/00 ,  A47L11/40 ,  B60L53/36

    Abstract: The present disclosure relates to a robot cleaner, and more particularly, to a robot cleaner that replaces a battery charged in a charging base and a discharged battery of the cleaning robot simply by using power of a cleaning robot of the robot cleaner. According to the present disclosure, the cleaning robot of the robot cleaner may include at least two driving wheels, and the charging base may include a replacement unit mechanically connected to one of the driving wheel to replace batteries and a docking unit mechanically connected to the other of the driving wheel to dock the cleaning robot. Therefore, as the cleaning robot and the charging base are mechanically connected, there is an effect of exchanging batteries only by using a control unit and the driving motor of the cleaning robot.

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