公开(公告)号：US20180226864A1

公开(公告)日：2018-08-09

申请号：US15887477

申请日：2018-02-02

Applicant: LG Electronics Inc.

Inventor： Jaeho KIM ,  Byungkuk KAM ,  Chisung PARK ,  Jihyun AHN

IPC: H02K15/02 ,  H02K1/16 ,  H02K16/04 ,  H02K1/14

CPC classification number: H02K15/024 ,  H02K1/14 ,  H02K1/143 ,  H02K1/146 ,  H02K1/148 ,  H02K1/165 ,  H02K3/524 ,  H02K16/04 ,  H02K21/14 ,  H02K2213/03

Abstract: A motor including a stator includes a first stator core, and a second stator core that is independent from the first stator core and that is symmetric to the first stator core with respect to a vertical line that passes through a center of the stator. Each of the first and second stator cores includes a yoke, a center tooth that extends from a center of the yoke toward the center of the stator, and outer teeth that extend from a first end of the yoke and a second end of the yoke, respectively. The center tooth is located between the outer teeth, and a length of the outer teeth is greater than a length of the center tooth.

公开(公告)号：US20240275224A1

公开(公告)日：2024-08-15

申请号：US18221606

申请日：2023-07-13

Applicant: LG Electronics Inc.

Inventor： Younggeun MIN ,  Hongsik HWANG ,  Kyungmo YU ,  Jaeho KIM ,  Kyungho HA

IPC: H02K1/276

CPC classification number: H02K1/2773 ,  H02K2213/03

Abstract: A flux concentrate type rotor includes a rotor core including an inner diameter portion core, a plurality of outer diameter portion cores, and a plurality of bridges connecting the plurality of outer diameter portion cores to the inner diameter portion core, and a plurality of arc type permanent magnets each inserted between two adjacent outer diameter portion cores. Each of the plurality of bridges includes a first straight portion extending in a radial direction of the rotor core, and a first angle θ1 between a first extension line connecting a center of the arc type permanent magnet and a center of the inner diameter portion core and a second extension line connecting a center of the first straight portion of the bridge and the center of the inner diameter portion core satisfies: θ1=5.75°±4°.

公开(公告)号：US20240266894A1

公开(公告)日：2024-08-08

申请号：US18221609

申请日：2023-07-13

Applicant: LG Electronics Inc.

Inventor： Younggeun MIN ,  Jaeho KIM ,  Hongsik HWANG ,  Kyungho HA

IPC: H02K1/276

CPC classification number: H02K1/2773 ,  H02K2213/03

Abstract: A flux concentrate type motor includes a rotor core including an inner diameter portion core, a plurality of outer diameter portion cores, and a plurality of bridges connecting the plurality of outer diameter portion cores to the inner diameter portion core; and a plurality of arc type permanent magnets each inserted between two adjacent outer diameter portion cores. A first angle θ1 formed between a first extension line connecting a center of the arc type permanent magnet and a center of the inner diameter portion core and a second extension line connecting a center of an outer arc of the outer diameter portion core and the center of the inner diameter portion core may satisfy: θ1=k1×PA (kl is 0.16 to 0.55, and PA=360°/(2×P(a number of pole of the permanent magnet)), where the first angle θ1 may be between 4° and 10°.

公开(公告)号：US20230120874A1

公开(公告)日：2023-04-20

申请号：US17885859

申请日：2022-08-11

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho KIM ,  Younggeun Min ,  Jiwan Lee ,  Kyungho Ha

IPC: H02K1/276

Abstract: A flux concentrate type rotor may include a shaft; a rotor core; and an arc type permanent magnet having an inner diameter portion and an outer diameter portion. The rotor core includes an annular ring-shaped inner diameter portion core having a shaft through hole, a plurality of outer diameter portion cores arranged along a circumferential direction of the inner diameter portion core on an outer circumferential surface of the inner diameter portion core, and spaced apart from each other to form permanent magnet insertion portion, and a plurality of bridges arranged along the circumferential direction of the inner diameter portion core to correspond to each of the outer diameter portion cores, and connect each of the outer diameter portion cores to the inner diameter portion core. The outer diameter portion core has a first cutout portion positioned at a lower end.

公开(公告)号：US20210344250A1

公开(公告)日：2021-11-04

申请号：US17142920

申请日：2021-01-06

Applicant: LG Electronics Inc.

Inventor： Jaeho KIM ,  Sunghyun KIM ,  Kyungho HA ,  Sunghoon KWAK

IPC: H02K5/173 ,  A45D20/12 ,  H02K5/22 ,  H02K7/14 ,  H02K11/33

Abstract: An electric motor assembly for, for example, a hair dryer, includes an impeller, an outer housing in which the impeller is accommodated, an inner housing concentrically disposed in the outer housing, a stator having one side thereof accommodated in the inner housing, a rotor provided with a rotating shaft having one end coupled to the impeller and rotatably accommodated in the stator, a first bearing disposed at one side of the rotor, a second bearing disposed at another side of the rotor, and a bracket coupled to the stator and the outer housing so as to support the second bearing. Accordingly, initial alignment of the stator and the rotor may be securely maintained.

公开(公告)号：US20170161868A1

公开(公告)日：2017-06-08

申请号：US15079240

申请日：2016-03-24

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho KIM ,  Dohyeon Kim ,  Namhyeon Choi

IPC: G06T3/20 ,  H05K5/00

CPC classification number: H05K5/0017 ,  G02F1/1333 ,  G09F9/00 ,  G09F9/301 ,  G09F11/30 ,  G09F15/0062

Abstract: A display device is disclosed. The display device includes: a housing; at least one roller configured to be positioned within the housing; a display portion including a display panel and a module cover; and a telescopic bar, one end of which is fixed to the interior of the housing and the other end is fixed to the bottom end of the display portion, wherein the display panel and the module cover are either in a first state where the display panel and the module cover are kept wound around the at least one roller or in a second state where the display panel and the module cover are kept unwound from the at least one roller, in contact with each other, and exposed out of the housing. The telescopic bar supports the back of a display portion in conjunction with the display portion, thereby allowing the display portion to remain flat.