公开(公告)号：US10808698B2

公开(公告)日：2020-10-20

申请号：US15830222

申请日：2017-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Yong Kyu Choi ,  Cheol Hwan Kim ,  Kangwook Lee ,  Jungsun Choi

IPC: F04C28/26 ,  F04C18/02 ,  F04C28/10 ,  F04C23/00 ,  F04C29/12 ,  F01C21/00 ,  F04C15/00 ,  F04C29/00

Abstract: A scroll compressor, and more particularly, to a scroll compressor including a communication groove which may decrease discharge resistance is provided. The scroll compressor may include a fixed scroll having a fixed end plate and a fixed wrap, and an orbiting scroll configured to perform an orbiting movement about the fixed scroll and having an orbiting end plate and an orbiting wrap. A communication groove in the form of a recessed groove may be formed in an inner surface of the orbiting end plate, and a refrigerant may flow through the communication groove according to a state in which the fixed wrap overlaps the communication groove such that there is an effect in that an opening efficiency of a discharge hole is improved at an initial stage of discharge.

公开(公告)号：US10711782B2

公开(公告)日：2020-07-14

申请号：US15817515

申请日：2017-11-20

Applicant: LG ELECTRONICS INC.

Inventor： Jungsun Choi ,  Yongkyu Choi ,  Cheolhwan Kim

IPC: F04C18/02 ,  F01C1/02 ,  F04C29/00 ,  F04C29/12 ,  F04C23/00

Abstract: A scroll compressor is provided that may include a first wrap, and a second wrap engaged with the first wrap and coupled to be eccentric to a center of rotation of a rotational shaft to form a compression chamber, moving toward a central portion, together with the first wrap while performing an orbiting motion with respect to the first wrap. A height of at least one of the first wrap or the second wrap may be formed to have at least two inclination machining amounts which decrease toward the central portion, and the inclination machining amount of the central portion may be larger than the inclination machining amount of an edge portion or a wrap rigidity at a specific section, thereby preventing frictional loss or abrasion of the wrap and breakage of the wrap.

公开(公告)号：US12071951B2

公开(公告)日：2024-08-27

申请号：US17920262

申请日：2021-04-13

Applicant: LG Electronics Inc.

Inventor： Minho Lee ,  Kangwook Lee ,  Jungsun Choi

IPC: F04C29/02 ,  F04C18/02

CPC classification number: F04C29/023 ,  F04C18/0215

Abstract: A scroll compressor has a regulating part, provided in a modular manner outside of a compression part, for determining whether to selectively supply oil from one oil-feeding path to a plurality of regions inside the compression part that compresses a refrigerant.

公开(公告)号：US12025127B2

公开(公告)日：2024-07-02

申请号：US17991228

申请日：2022-11-21

Applicant: LG Electronics Inc.

Inventor： Jungsun Choi ,  Byungkil Yoo ,  Seheon Choi

IPC: F04C18/02 ,  F01C17/06 ,  F04C29/00 ,  F04C29/02

CPC classification number: F04C18/0215 ,  F01C17/066 ,  F04C18/0253 ,  F04C29/0042 ,  F04C29/028

Abstract: A scroll compressor includes a casing, a main frame, a rotating shaft, an orbiting scroll, a fixed scroll configured to engage the orbiting scroll to form a compression chamber, and an Oldham ring slidably coupled to the orbiting scroll to prevent rotation of the orbiting scroll. The Oldham ring includes: a ring body provided between the main frame and the orbiting scroll to be supported in an axial direction of the rotating shaft, and a key portion extending in the axial direction from the ring body and slidably inserted into a key accommodating portion provided in the orbiting scroll, the main frame, or the fixed scroll. The ring body or the key portion includes an oil supply passage for guiding oil accumulated in a member on which the ring body is supported to between the key portion and the key accommodating portion.

公开(公告)号：US11441565B2

公开(公告)日：2022-09-13

申请号：US16409138

申请日：2019-05-10

Applicant: LG Electronics Inc.

Inventor： Sang Baek Park ,  Jungsun Choi ,  Cheol Hwan Kim

IPC: F04C29/00 ,  F01C17/06 ,  F04C18/02

Abstract: A scroll compressor includes a drive motor, a rotary shaft coupled to the drive motor, a main frame disposed below the drive motor, a fixed scroll disposed below the main frame, an orbiting scroll disposed between the main frame and the fixed scroll and eccentrically coupled to the rotary shaft, and an Oldham's ring coupled to the main frame and the orbiting scroll and configured to restrict rotation of the orbiting scroll relative to the fixed scroll. The Oldham's ring includes: a ring body, a first key that receives a first fixing boss of the ring body and that is configured to couple to the main frame, and a second key that receives a second fixing boss of the ring body and that is configured to couple to the orbiting scroll.

公开(公告)号：US10697456B2

公开(公告)日：2020-06-30

申请号：US15451803

申请日：2017-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Howon Lee ,  Jungsun Choi ,  Cheolhwan Kim

IPC: F04C27/00 ,  F04C23/00 ,  F04C18/02

Abstract: A scroll compressor is provided that may include a motor; an orbiting scroll; a fixed scroll coupled to the orbiting scroll, and forming a compression chamber together with the orbiting scroll; a frame coupled to the fixed scroll, and configured to support the orbiting scroll; a sealing member mounting groove having a ring shape, and formed on a first surface of the frame contacting the orbiting scroll, or a second surface of the orbiting scroll contacting the frame; and a sealing member including a first sealing portion formed in a ring shape, inserted into the sealing member mounting groove so as to be moveable in an axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in the axial direction and including a second sealing portion extending from the first sealing portion in the axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in a radial direction by contacting an outer side wall surface of the sealing member mounting groove A thickness of the second sealing portion in the radial direction may be smaller than a thickness of the first sealing portion in the axial direction.

公开(公告)号：US20180372098A1

公开(公告)日：2018-12-27

申请号：US15830184

申请日：2017-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Sang baek PARK ,  Jungsun Choi ,  Cheol Hwan Kim ,  Byeongchul Lee

IPC: F04C18/02 ,  F04C29/12 ,  F04C23/00

Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.

公开(公告)号：US20170306957A1

公开(公告)日：2017-10-26

申请号：US15451803

申请日：2017-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Howon LEE ,  Jungsun Choi ,  Cheolhwan Kim

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

Abstract: A scroll compressor is provided that may include a motor; an orbiting scroll; a fixed scroll coupled to the orbiting scroll, and forming a compression chamber together with the orbiting scroll; a frame coupled to the fixed scroll, and configured to support the orbiting scroll; a sealing member mounting groove having a ring shape, and formed on a first surface of the frame contacting the orbiting scroll, or a second surface of the orbiting scroll contacting the frame; and a sealing member including a first sealing portion formed in a ring shape, inserted into the sealing member mounting groove so as to be moveable in an axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in the axial direction and including a second sealing portion extending from the first sealing portion in the axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in a radial direction by contacting an outer side wall surface of the sealing member mounting groove A thickness of the second sealing portion in the radial direction may be smaller than a thickness of the first sealing portion in the axial direction.

公开(公告)号：US11668303B2

公开(公告)日：2023-06-06

申请号：US16693467

申请日：2019-11-25

Applicant: LG ELECTRONICS INC.

Inventor： Jungsun Choi ,  Howon Lee ,  Cheolhwan Kim

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C18/02 ,  F01C21/10 ,  F04C23/00 ,  F04C29/02

CPC classification number: F04C18/0269 ,  F01C21/102 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/023 ,  F04C29/025 ,  F04C2240/603 ,  F05C2201/02 ,  F05C2201/021 ,  F05C2201/0439

Abstract: A scroll compressor is provided that may include a casing; a drive motor provided at an inner space of the casing; a rotational shaft coupled to a rotor of the drive motor, and rotated together with the rotor; a frame provided below the drive motor; a fixed scroll provided below the frame, and having a fixed wrap; and an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap so as to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the fixed wrap. In a state in which a center of the fixed scroll and a center of the orbiting scroll are substantially the same, an interval between the fixed wrap and the orbiting wrap gradually increases towards the suction chamber from the discharge chamber.

公开(公告)号：US11603840B2

公开(公告)日：2023-03-14

申请号：US17350516

申请日：2021-06-17

Applicant: LG Electronics Inc.

Inventor： Kyungho Lee ,  Jungsun Choi ,  Kangwook Lee

IPC: F04C18/02 ,  F04C29/02 ,  F04C23/00

Abstract: A scroll compressor according to the present disclosure includes a fixed scroll, an orbiting scroll forming first and compression chambers with the fixed scroll, first and second compression chamber oil supply holes formed through the orbiting scroll to communicate with the first compression chamber and the second compression chamber, respectively, wherein when a section in which the first compression chamber oil supply hole is opened toward the first compression chamber is a first oil supply section and a section in which the second compression chamber oil supply hole is opened toward the second compression chamber, a non-overlap section between the first oil supply section and the second oil supply section may be longer than an overlap section between the first oil supply section and the second oil supply section, so as to prevent communication between the first and second compression chambers, thereby suppressing leakage between the compression chambers.