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    MOTOR ASSEMBLY
    1.
    发明公开
    MOTOR ASSEMBLY 审中-公开

    公开(公告)号：US20230179031A1

    公开(公告)日：2023-06-08

    申请号：US17923848

    申请日：2020-09-16

    Applicant: LG Electronics Inc.

    Inventor： Jinwook CHA ,  Chaseung JUN ,  Jaehoon JEONG ,  Charyeom PARK

    IPC: H02K1/14 ,  H02K5/16 ,  H02K3/32 ,  H02K7/00 ,  H02K9/06

    CPC classification number: H02K1/14 ,  H02K5/161 ,  H02K3/325 ,  H02K7/003 ,  H02K9/06

    Abstract: The present specification discloses a motor assembly. An embodiment of the motor assembly disclosed in the present specification may comprise: a motor housing in which a motor is received; a shaft which forms the rotation axis of the motor; a rotor which is coupled to the shaft; a plurality of cores and coils which are provided along the circumference of the rotor to form a flux path; and insulators which are coupled to the cores to insulate the cores from the coils, wherein each of the insulators may comprise an insulating portion which covers the outer surface of the corresponding core and a fixing portion which protrudes outward from the insulating portion in the radial direction of the rotor, and the fixing portion may be coupled to the inner circumferential surface of the motor housing.

    MOTOR ASSEMBLY
    3.
    发明公开
    MOTOR ASSEMBLY 审中-公开

    公开(公告)号：US20230163645A1

    公开(公告)日：2023-05-25

    申请号：US17921843

    申请日：2020-09-16

    Applicant: LG Electronics Inc.

    Inventor： Jinwook CHA ,  Chaseung JUN ,  Jaehoon JEONG ,  Charyeom PARK

    IPC: H02K1/14 ,  H02K7/00 ,  H02K1/24

    CPC classification number: H02K1/14 ,  H02K7/003 ,  H02K1/24

    Abstract: The present invention relates to a motor assembly comprising a core with an improved structure. An embodiment of the present invention provides a motor assembly comprising: a shaft configured to form a rotational axis of a motor; a rotor coupled to the shaft; and a plurality of cores provided along the circumference of the rotor and configured to form a magnetic path. The cores are spaced apart from the outer circumferential surface of the rotor by a predetermined distance and configured to surround at least a portion of the outer circumferential surface of the rotor, and each comprise: a pole shoe having a first surface parallel to the radial direction of the rotor; and a pole arm extending from the pole shoe toward the radially outer side of the rotor. Among the plurality of cores, the first surfaces formed on the pole shoes of adjacent cores are symmetrical with respect to the radial direction of the rotor.

    TWO-PHASE MOTOR ASSEMBLY
    4.
    发明公开
    TWO-PHASE MOTOR ASSEMBLY 审中-公开

    公开(公告)号：US20230223882A1

    公开(公告)日：2023-07-13

    申请号：US18009585

    申请日：2020-06-18

    Applicant: LG Electronics Inc.

    Inventor： Sunku KWON ,  Chaseung JUN ,  Jaehoon JEONG ,  Jungik HA

    IPC: H02P27/06 ,  H02M7/5387 ,  H02P6/08

    CPC classification number: H02P27/06 ,  H02M7/5387 ,  H02P6/085 ,  H02P6/28

    Abstract: The present disclosure relates to a motor assembly, and more particularly, to a motor having a two-phase input power source and a power conversion device for driving a two-phase motor. The present disclosure relates to the motor assembly for driving the two-phase motor, the motor assembly configured to comprise: a motor including a first winding and a second winding having an electrically insulated parallel structure; a DC-link circuit for supplying a direct-current voltage; and an inverter connected to the DC-link circuit to convert the direct-current voltage into an alternating-current voltage to drive the motor, and including a first switching element set connected to the first winding and a second switching element set connected to the second winding.

    DEVICE FOR DRIVING A PLURALITY OF MOTORS AND ELECTRIC APPARATUS INCLUDING THE SAME
    5.
    发明申请
    DEVICE FOR DRIVING A PLURALITY OF MOTORS AND ELECTRIC APPARATUS INCLUDING THE SAME 有权

    公开(公告)号：US20210135606A1

    公开(公告)日：2021-05-06

    申请号：US17087789

    申请日：2020-11-03

    Applicant: LG ELECTRONICS INC.

    Inventor： Sunku KWON ,  Chaseung JUN ,  Jaehoon JEONG ,  Sehwa CHOE

    IPC: H02P5/505

    Abstract: A device for driving a plurality of motors and an electric apparatus includes a first and a second capacitor, an inverter connected to a DC terminal, a multi-phase motor connected to the inverter, a single-phase motor serially connected with the multi-phase motor, and a controller configured to control the inverter. For starting the single phase motor during operation of the multi-phase motor, the controller is configured to perform, during an alignment period, an alignment of a rotor of the single-phase motor and perform, during a voltage compensation period, a voltage compensation for compensating a voltage change of a DC terminal neutral point between the first capacitor and the second capacitor based on the alignment of the rotor of the single-phase motor.

    MOWING ROBOT
    6.
    发明申请
    MOWING ROBOT 审中-公开

    公开(公告)号：US20190223376A1

    公开(公告)日：2019-07-25

    申请号：US16251957

    申请日：2019-01-18

    Applicant: LG ELECTRONICS INC.

    Inventor： Jaehoon LEE ,  Seungin SHIN ,  Jaehoon JEONG

    IPC: A01D34/00 ,  A01D34/58 ,  B25J13/08

    Abstract: A mowing robot includes a body which forms an outer shape and an internal space; a first wheel and a second wheel which are independently rotatably provided at a first side and a second side respectively so that the body can rotate and move forward with respect to ground; a first motor which provides a rotational force to the first wheel; a second motor which provides a rotational force to the second wheel; and a sensor which is provided in the internal space, has a gyro sensing function for at least horizontal rotation, and has a magnetic field sensing function, wherein the sensor is provided between a wheel front end plane and a wheel rear end plane, and is provided above a first motor upper end plane and a second motor upper end plane.

    DRIVING UNIT AND LINEAR COMPRESSOR INCLUDING THE SAME
    8.
    发明公开
    DRIVING UNIT AND LINEAR COMPRESSOR INCLUDING THE SAME 审中-公开

    公开(公告)号：US20230336061A1

    公开(公告)日：2023-10-19

    申请号：US18094682

    申请日：2023-01-09

    Applicant: LG Electronics Inc.

    Inventor： Sangsub JEONG ,  Sungchul GONG ,  Jaehoon JEONG

    IPC: H02K16/04 ,  H02K3/52

    CPC classification number: H02K16/04 ,  H02K3/525 ,  H02K2203/12 ,  F25B31/023

    Abstract: A driving unit and a linear compressor including the same are provided. The driving unit includes an inner stator, a bobbin surrounding the inner stator in a circumferential direction, a coil wound on the bobbin, a plurality of stator cores surrounding the bobbin and spaced apart from each other in the circumferential direction, and a plurality of permanent magnets disposed between the inner stator and the plurality of stator cores. A cross section of the bobbin may include a pair of straight portions facing each other and a curved portion connecting the pair of straight portions.

    MOTOR ASSEMBLY
    9.
    发明公开
    MOTOR ASSEMBLY 审中-公开

    公开(公告)号：US20230188005A1

    公开(公告)日：2023-06-15

    申请号：US17923982

    申请日：2020-09-16

    Applicant: LG ELECTRONICS INC.

    Inventor： Jaehoon JEONG ,  Chaseung JUN ,  Jinwook CHA ,  Charyeom PARK

    IPC: H02K9/06 ,  H02K5/173 ,  H02K5/20 ,  H02K7/08

    CPC classification number: H02K9/06 ,  H02K5/1732 ,  H02K5/207 ,  H02K7/083

    Abstract: A motor assembly includes a motor housing having a shaft, a rotor coupled to the shaft, multiple core assemblies along the circumference of the rotor to form a magnetic path, and a first bearing housing supporting one side of the shaft, a housing cover coupled to the motor housing, an impeller installed on the shaft, a diffuser coupled to the housing cover between the impeller and the rotor, and a shroud containing the impeller and the diffuser. The multiple core assemblies are contained independently and spaced apart from each other along the circumference of the rotor. The housing cover includes a second bearing housing supporting the other side of the shaft. The motor housing includes core support portions for supporting the multiple core assemblies independently, and a first bridge extending from the core support portions to connect the core support portions and the first bearing housing.

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