公开(公告)号：US11581766B2

公开(公告)日：2023-02-14

申请号：US16567754

申请日：2019-09-11

Applicant: LG Electronics Inc.

Inventor： Woogyong Yim ,  Jehoon Kim ,  Ochang Gwon ,  Kyoungjun Park

IPC: H02K1/276

Abstract: A drive motor includes a stator having an accommodating space and a rotor rotatably provided in the accommodating space and rotated by a magnetic interaction with the stator, wherein the rotor includes a rotor core into which a magnetic member is inserted and first and second flux barriers formed to penetrate through the rotor core and extending along a circumferential direction of the rotor core from both sides of the magnetic member, wherein a length of the first flux barrier and a length of the second flux barrier are different from each other.

公开(公告)号：US11549510B2

公开(公告)日：2023-01-10

申请号：US16516598

申请日：2019-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Bumjune Seo ,  Ochang Gwon ,  Yongsoo Cho ,  Jongtae Her

IPC: F04C18/02

Abstract: A motor-operated compressor includes a compression unit including a compression chamber formed by a plurality of scrolls engaged with each other. The compressor includes a rotation shaft having one end coupled to one of the scrolls and a rotor coupled with another end of the rotation shaft. The compressor includes a stator radially separated from the rotor by a predetermined gap. The compressor includes a casing having a motor chamber. The stator is inserted in the motor chamber and divides the motor chamber into a first space and a second space. The casing includes an inlet port coupled to the first space to guide a refrigerant toward the motor chamber. The casing also includes a suction guide passage coupled to the second space to guide the refrigerant sucked through the inlet port toward the compression unit. A communication passage portion in the rotation shaft communicates the first and second spaces.

公开(公告)号：US10989183B2

公开(公告)日：2021-04-27

申请号：US15627567

申请日：2017-06-20

Applicant: LG ELECTRONICS INC.

Inventor： Sangsub Jeong ,  Ochang Gwon ,  Jungsik Park ,  Jongkoo Lee

IPC: F04B35/04 ,  F04B39/00 ,  F04B39/10 ,  F04B39/12 ,  H02K33/16

Abstract: A reciprocating motor and a reciprocating compressor having a reciprocating motor are provided. The reciprocating motor may include a stator having a magnet coil, provided with an air gap respectively formed at both sides in an axial direction by interposing the magnet coil therebetween; a mover inserted into the stator, reciprocating with respect to the stator as at least one magnet is arranged at any one of the air gaps formed at both sides and a non-magnet is arranged at the other one of the air gaps; and a magnetic resonance spring that resonates the mover with respect to the stator using a force for moving toward low magnetic resistance between the mover and the stator. The reciprocating motor and the reciprocating compressor having a reciprocating motor may be downsized and lightweight, and may obtain high efficiency.

公开(公告)号：US10050506B2

公开(公告)日：2018-08-14

申请号：US14812244

申请日：2015-07-29

Applicant: LG ELECTRONICS INC.

Inventor： Sangsub Jeong ,  Jehoon Kim ,  Ochang Gwon

IPC: H02K1/02 ,  H02K1/34 ,  H02K3/38 ,  H02K33/16 ,  F04B35/04 ,  F04B39/12 ,  F04B53/14 ,  H02K7/14

CPC classification number: H02K33/16 ,  F04B35/04 ,  F04B35/045 ,  F04B39/121 ,  F04B39/122 ,  F04B53/14 ,  H02K1/34 ,  H02K3/38 ,  H02K7/14

Abstract: Provided is a linear compressor. The linear compressor includes a cylinder defining a compression space for a refrigerant, a piston reciprocated in an axis direction within the cylinder, and a linear motor providing power to the piston. The linear motor includes an inner stator disposed outside the cylinder, the inner stator including a center core and a side core disposed on at least one side of the center core, an outer stator disposed to be spaced outward from the inner stator in a radius direction, and a magnet movably disposed in an airgap defined between the inner stator and the outer stator. The side core includes a core body and a lead-out guide device coupled to the core body to expose or lead out a power line to the outside of the side core.

公开(公告)号：US11536492B2

公开(公告)日：2022-12-27

申请号：US16794902

申请日：2020-02-19

Applicant: LG Electronics Inc.

Inventor： Joohyung Kim ,  Ochang Gwon ,  Bumsuk Kim ,  Yicheol Choi

IPC: H02K1/20 ,  H02K5/08 ,  H02K5/22 ,  H02K5/24 ,  H02K7/14 ,  H02K9/22 ,  F25B1/00 ,  H02K11/33

Abstract: The present disclosure provides an electric compressor comprising a main housing, a motor part disposed in the main housing and comprising a stator comprising a rotor accommodating portion and a rotor rotatably disposed in the rotor accommodating portion, a compression part rotatably connected to the motor part, and an inverter part electrically connected to the motor part. The motor part is disposed in a motor room formed inside the main housing, the stator comprises a plurality of insulating protrusions protruding from an outer circumferential surface of the stator, and the plurality of insulating protrusions is configured to be brought into contact with an inner circumferential surface of the motor room.

公开(公告)号：US10107276B2

公开(公告)日：2018-10-23

申请号：US14814562

申请日：2015-07-31

Applicant: LG ELECTRONICS INC.

Inventor： Sangsub Jeong ,  Jongkoo Lee ,  Jehoon Kim ,  Ochang Gwon

IPC: F04B35/04 ,  F04B17/04 ,  F04B39/12

Abstract: A linear compressor includes a cylinder defining a compression space for a refrigerant, a piston reciprocated in an axis direction within the cylinder, and a linear motor providing power to the piston. The linear motor includes an inner stator disposed outside the cylinder, the inner stator including a center core and a side core disposed on at least one side of the center core, an outer stator disposed to be spaced outward from the inner stator in a radius direction, a permanent magnet movably disposed in an air gap defined between the inner stator and the outer stator, and a deformation prevention device for preventing the inner stator from being deformed.