公开(公告)号：US11637462B2

公开(公告)日：2023-04-25

申请号：US17656191

申请日：2022-03-23

Applicant: LG INNOTEK CO., LTD.

Inventor： Jin Su Pyeon ,  Shung Hun Woo

IPC: H02K1/16 ,  H02K1/14 ,  H02K1/274

Abstract: An embodiment provides a stator comprising a stator core having a plurality of teeth and coils wound around the teeth, wherein the tooth includes a body around which the coil is wound and a shoe connected to the body, the shoe includes a plurality of grooves and a curvature center of the inner peripheral surface of the shoe is the same as the center of the stator core.

公开(公告)号：US10892661B2

公开(公告)日：2021-01-12

申请号：US16813153

申请日：2020-03-09

Applicant: LG INNOTEK CO., LTD.

Inventor： Shung Hun Woo ,  Seong Jin Lee

IPC: H02K3/487 ,  H02K5/04 ,  H02K1/18 ,  H02K5/16 ,  H02K7/08

Abstract: The present invention provides A motor comprising a housing; a stator disposed inside the housing; a rotor disposed inside the stator; a shaft coupled to the rotor; and a teeth support part come in contact with the teeth of the stator, wherein the teeth support part includes a guide is disposed between the teeth adjacent to each other, wherein a width of the guide in the circumferential direction corresponding to the length between the end surfaces of the adjacent teeth, wherein an outer upper surface of the guide and inner bottom surfaces of the adjacent teeth form a shape of an arc.

公开(公告)号：US09735658B2

公开(公告)日：2017-08-15

申请号：US14106182

申请日：2013-12-13

Applicant: LG INNOTEK CO., LTD.

Inventor： Shung Hun Woo

IPC: H02K11/00 ,  H02K11/215 ,  H02K11/20 ,  H02K11/21

CPC classification number: H02K11/215 ,  H02K11/20 ,  H02K11/21

Abstract: Provided are a motor and a sensing magnet of the motor. The sensing magnet includes a through hole that is positioned at a center portion thereof, and a plurality of poles which are formed along an outer periphery thereof. Here, the plurality of poles includes a first pole and a second pole extending from the first pole in a direction of the through hole.

公开(公告)号：US11658527B2

公开(公告)日：2023-05-23

申请号：US17133759

申请日：2020-12-24

Applicant: LG INNOTEK CO., LTD.

Inventor： Jung Kyu Lee ,  Shung Hun Woo

IPC: H02K16/02 ,  H02K1/278 ,  H02K1/30 ,  H02K21/14

CPC classification number: H02K1/278 ,  H02K1/30 ,  H02K21/14

Abstract: A rotor including a first rotor part and a second rotor part which are disposed in a shaft direction is provided. The first rotor part includes a first rotor core, a plurality of first magnets disposed on an outer circumferential surface of the first rotor core, and a first holder configured to fix the plurality of first magnets. The first holder includes a first body in a cylindrical shape, a first plate which is connected to the first body and configured to cover the plurality of first magnets, and a plurality of first coupling protrusions which protrude from an inner circumferential surface of the first body and are coupled to the first rotor core. A motor is also provided.

公开(公告)号：US11606014B2

公开(公告)日：2023-03-14

申请号：US17816131

申请日：2022-07-29

Applicant: LG INNOTEK CO., LTD.

Inventor： Shung Hun Woo ,  Nam Hoon Kim

IPC: H02K29/08 ,  H02K11/215 ,  G01D5/245 ,  G01D5/14

Abstract: The present invention provides an apparatus for sensing rotor location, the apparatus comprising: a central shaft; a magnet coupled to the central shaft; a sensor portion is disposed correspond to the magnet; wherein the sensor portion comprising a substrate, a first group including a first Hall sensor and a third Hall sensor disposed on the substrate, and a second group including a second Hall sensor and a fourth Hall sensor, the first Hall sensor and the third Hall sensor are arranged to overlap in a radial direction about the central shaft and the second Hall sensor and the fourth Hall sensor are arranged to overlap in a radial direction about the central shaft.

公开(公告)号：US11431214B2

公开(公告)日：2022-08-30

申请号：US16317744

申请日：2017-07-12

Applicant: LG INNOTEK CO., LTD.

Inventor： Shung Hun Woo ,  Jung Kyu Lee

IPC: H02K1/27 ,  H02K29/03 ,  H02K1/278

Abstract: The present invention provides rotor including: a rotor core having a cylindrical shape; and a plurality of magnets disposed to surround an outer circumferential surface of the rotor core, wherein the magnet includes an inner circumferential surface in contact with the outer circumferential surface of the rotor core, when a first angle is defined by dividing an angle formed by the outer circumferential surface of the rotor core by the number of magnets, a second angle is formed by a first extension line and a second extension line which extend from both end points of the inner circumferential surface of the magnet to a center point of the rotor core on cross sections of the rotor core and the magnet, and a ratio of the second angle to the first angle is in a range of 0.87 to 0.93, thereby providing an advantageous effect of greatly reducing a cogging torque by decreasing a width of the magnet to double a cogging main degree.

公开(公告)号：US11316389B2

公开(公告)日：2022-04-26

申请号：US16642280

申请日：2018-08-08

Applicant: LG INNOTEK CO., LTD.

Inventor： Jin Su Pyeon ,  Shung Hun Woo

IPC: H02K1/16 ,  H02K1/27 ,  H02K1/14 ,  H02K1/274

Abstract: An embodiment provides a stator comprising a stator core having a plurality of teeth and coils wound around the teeth, wherein the tooth includes a body around which the coil is wound and a shoe connected to the body, the shoe includes a plurality of grooves and a curvature center of the inner peripheral surface of the shoe is the same as the center of the stator core.

公开(公告)号：US11863034B2

公开(公告)日：2024-01-02

申请号：US18166098

申请日：2023-02-08

Applicant: LG INNOTEK CO., LTD.

Inventor： Shung Hun Woo ,  Nam Hoon Kim

IPC: H02K29/08 ,  H02K11/215 ,  G01D5/245 ,  G01D5/14

CPC classification number: H02K29/08 ,  G01D5/142 ,  G01D5/145 ,  G01D5/2451 ,  H02K11/215 ,  G01D5/2452 ,  G01D5/2457 ,  H02K2213/03

Abstract: The present invention provides an apparatus for sensing rotor location, the apparatus comprising: a central shaft; a magnet coupled to the central shaft; a sensor portion is disposed correspond to the magnet; wherein the sensor portion comprising a substrate, a first group including a first Hall sensor and a third Hall sensor disposed on the substrate, and a second group including a second Hall sensor and a fourth Hall sensor, the first Hall sensor and the third Hall sensor are arranged to overlap in a radial direction about the central shaft and the second Hall sensor and the fourth Hall sensor are arranged to overlap in a radial direction about the central shaft.

公开(公告)号：US10903731B2

公开(公告)日：2021-01-26

申请号：US16329620

申请日：2017-09-05

Applicant: LG INNOTEK CO., LTD.

Inventor： Shung Hun Woo ,  Nam Hoon Kim

IPC: H02K29/08 ,  H02K11/215 ,  H02K11/27 ,  G01D5/245 ,  G01D5/14

Abstract: A motor for sensing a rotor location is provided, the motor comprising a shaft, a sensing magnet including a main magnet and a sub-magnet coupled to the shaft and a substrate disposed on the sensing magnet. The substrate includes a plurality of first hall sensors and a plurality of second hall sensors spaced apart from the shaft by a first distance, and a plurality of third hall sensors and a plurality of fourth hall sensors spaced apart from the shaft by a second distance larger than the first distance.

公开(公告)号：US10850886B2

公开(公告)日：2020-12-01

申请号：US16322813

申请日：2017-08-01

Applicant: LG INNOTEK CO., LTD.

Inventor： Chung Jae Oh ,  Shung Hun Woo

IPC: H02K11/00 ,  B65D5/04 ,  H01R13/64 ,  H02K5/22 ,  H01R13/58 ,  H02K11/40 ,  H01R13/52 ,  H02K3/32 ,  H02K11/22

Abstract: The present invention may provide a rear holder comprising: a first body comprising a first groove; a second body comprising a second groove; a coupling portion for coupling the first body and the second body such that the first groove and the second groove are aligned, thereby constituting a cable hole; and a rib, wherein the rib is arranged so as to protrude along at least one selected from the boundary between the front surface of the first body and the first groove and the boundary between the front surface of the second body and the second groove.