公开(公告)号：US20240301880A1

公开(公告)日：2024-09-12

申请号：US18277423

申请日：2022-01-18

Applicant: LG ELECTRONICS INC.

Inventor： Jehyeon MOON ,  Byungkil YOO

IPC: F04C18/02 ,  F04C29/00

CPC classification number: F04C18/0215 ,  F04C18/0292 ,  F04C29/0028

Abstract: A scroll compressor including an orbiting scroll that performs an orbiting motion; a fixed scroll coupled to the orbiting scroll so as to form a compression chamber; and a main frame that rotatably supports the orbiting scroll at an opposite side of the fixed scroll with the orbiting scroll interposed therebetween, and supportably connected to the fixed scroll. The fixed scroll is provided with a back pressure hole formed between a first back pressure chamber in which gas discharged from the compression chamber is received, and the compression chamber. The back pressure hole may communicate with the first back pressure chamber and the compression chamber on the basis of a predetermined pressure ratio of the compression chamber.

公开(公告)号：US20230175510A1

公开(公告)日：2023-06-08

申请号：US17980625

申请日：2022-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Kyungho LEE ,  Jehyeon MOON

IPC: F04C29/02 ,  F04C18/02

CPC classification number: F04C29/026 ,  F04C18/0215 ,  F04C29/025 ,  F04C2240/30 ,  F04C2240/806 ,  F04C2240/809

Abstract: A scroll compressor is provided that may include a casing having an oil storage space, a suction pipe and a discharge pipe being connected to the casing, a drive motor installed in an inner space of the casing and including a rotational shaft rotated by a generated drive force, a compression unit installed in the inner space of the casing and having a compression chamber operated by the drive motor to compress a refrigerant, an oil separator coupled to the discharge pipe, that receives refrigerant discharged after being compressed by the compression unit, separates oil from the refringent, and supplies the oil to an inside of the casing, and a subframe that rotatably supports the rotational shaft at one side of the rotational shaft. The subframe may be provided with an oil recovery flow path that extends in a radial direction and guides oil to be recovered toward the inside of the casing from the oil separator.

公开(公告)号：US20230304496A1

公开(公告)日：2023-09-28

申请号：US18004254

申请日：2021-07-06

Applicant: LG Electronics Inc.

Inventor： Byungkil YOO ,  Jehyeon MOON

IPC: F04C18/02

CPC classification number: F04C18/0215 ,  F05B2260/30 ,  F05B2280/1021 ,  F05B2280/101

Abstract: A scroll compressor having an orbiting scroll and an Oldham ring is disclosed. According to various embodiments of the present invention, if an orbiting scroll and an Oldham ring are made from the same material, the orbiting scroll has a first key made from a material different therefrom to improve friction characteristics, wherein the first key is accommodated so as to be slidable along a slot formed at the Oldham ring. The first key can be press-fitted into and coupled to the orbiting scroll. Therefore, the first key is supported by the orbiting scroll without a reduction in size of the cross sectional area thereof, and thus the support stiffness of the first key can be reinforced.

公开(公告)号：US20200370557A1

公开(公告)日：2020-11-26

申请号：US16796416

申请日：2020-02-20

Applicant: LG Electronics Inc.

Inventor： Jehyeon MOON ,  Bumsuk KIM ,  Yicheol CHOI ,  Sanghyun JOO

IPC: F04C18/02 ,  F04C23/02

Abstract: The present disclosure provides an electric compression and expansion apparatus comprising a main housing comprising a motor chamber, a motor part housed in the motor chamber, a rotary shaft part extending in a length direction and coupled to the motor part, a compression part coupled to one side of the rotary shaft part in the length direction, and an expansion part coupled to another side of the rotary shaft part in the length direction. The rotary shaft part is configured to rotate integrally with the motor part, and the compression part is configured to rotate integrally with the rotary shaft part to compress refrigerant. The expansion part is configured to rotate integrally with the rotary shaft part to expand the compressed refrigerant.

公开(公告)号：US20230407866A1

公开(公告)日：2023-12-21

申请号：US18337912

申请日：2023-06-20

Applicant: LG Electronics Inc.

Inventor： Jehyeon MOON ,  Kyungho LEE ,  Minho LEE

IPC: F04C18/02

CPC classification number: F04C18/0215 ,  F04C2240/30 ,  F04C2240/60 ,  F04C2240/40 ,  F04C2270/185

Abstract: A scroll compressor includes an orbiting scroll that is coupled to a rotating shaft in a casing and includes an orbiting end plate portion coupled to the rotating shaft and an orbiting wrap that has a spiral shape protruding from one surface of the orbiting end plate portion, a fixed scroll including a fixed wrap that is engaged with the orbiting wrap defines a compression chamber with the orbiting wrap therebetween, and a main frame that rotatably supports the orbiting scroll and defines a back pressure chamber with the orbiting scroll. The fixed scroll defines a fixed back pressure hole having a first end configured to communicate with the first back pressure chamber and a second end is located between outer and inner circumferences of the orbiting wrap. The orbiting wrap is configured to cover at least a portion of the fixed back pressure hole during the orbital motion.

公开(公告)号：US20200080557A1

公开(公告)日：2020-03-12

申请号：US16516550

申请日：2019-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Ilyoung PARK ,  Jehyeon MOON ,  Junyoung LIM ,  Sanghyun JOO

IPC: F04C18/02 ,  F04C29/12 ,  F04C27/00 ,  F04C29/00

Abstract: A motor-operated compressor includes a casing having a motor chamber that accommodates a driving motor. The compressor also includes a frame. A first scroll having a first spiral wrap is connected to one side of the frame. A second scroll is provided between the frame and the first scroll. The second scroll has a second spiral wrap that engages with the first spiral warp to form compression chambers between the first and second spiral wraps. The compressor also includes a rotation shaft connected at one end to the driving motor and at an opposite end to the second scroll. The compressor includes a back pressure space defined by a balance weight axially separated from a rear surface of the second scroll. A back pressure passage fluidly connects the compression chambers with the back pressure space.