公开(公告)号：US20200284257A1

公开(公告)日：2020-09-10

申请号：US16751422

申请日：2020-01-24

Applicant: LG Electronics Inc.

Inventor： Sangbaek PARK ,  Jungsun CHOI ,  Cheolhwan KIM

IPC: F04C18/02

Abstract: A scroll compressor includes a casing, a drive motor arranged in an inner space of the casing, a rotary shaft coupled to the drive motor to rotate, a main frame arranged under the drive motor, a fixed scroll arranged under the main frame, an orbiting scroll engaging with the orbiting scroll to make an orbiting motion, the rotary shaft being inserted into and eccentrically coupled to the orbiting scroll, a first bearing positioned between the main frame and the rotary shaft, and a second bearing positioned between the fixed scroll and the rotary shaft, where a gap between the first and second bearings and the rotary shaft varies with a vertical position. The scroll compressor may prevent the eccentric effect occurring during rotation from deteriorating performance of the bearings, thereby preventing compression performance from being lowered.

公开(公告)号：US20240376895A1

公开(公告)日：2024-11-14

申请号：US18691383

申请日：2022-07-29

Applicant: LG ELECTRONICS INC.

Inventor： Byungkil YOO ,  Jungsun CHOI ,  Seheon CHOI

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

Abstract: A scroll compressor includes a plurality of fixing protrusions that are provided spaced apart from each other in a key that constitutes an Oldham ring, and an orbiting scroll, to which the key is coupled, or a ring body of the Oldham ring may be provided with a plurality of fixing grooves which are spaced part from each other and into which the plurality of fixing protrusions are respectively inserted and fixed.

公开(公告)号：US20230358232A1

公开(公告)日：2023-11-09

申请号：US18066615

申请日：2022-12-15

Applicant: LG Electronics Inc.

Inventor： Byungkil YOO ,  Jungsun CHOI ,  Seheon CHOI

IPC: F04C18/02

CPC classification number: F04C18/0269 ,  F04C18/0215

Abstract: A scroll compressor is disclosed. The scroll compressor includes a rotating shaft coupling portion axially extending from a central portion of an orbiting end plate to radially overlap an orbiting wrap, such that an eccentric portion of a rotating shaft is coupled thereto, and a portion of the orbiting wrap may extend from an end surface of the rotating shaft coupling portion facing a fixed end plate. With the configuration, a distance between bearing reaction force and gas reaction force acting on the orbiting scroll can be reduced, to stabilize a behavior of the orbiting scroll and thus reduce back pressure, thereby decreasing friction loss between scrolls. Simultaneously, compression chambers can be formed even in a central portion of the orbiting scroll, which can increase a compression ratio and improve volumetric efficiency.

公开(公告)号：US20230213034A1

公开(公告)日：2023-07-06

申请号：US17991228

申请日：2022-11-21

Applicant: LG Electronics Inc.

Inventor： Jungsun CHOI ,  Byungkil YOO ,  Seheon CHOI

IPC: F04C18/02 ,  F04C29/00

CPC classification number: F04C18/0215 ,  F04C29/0042

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：US20210277897A1

公开(公告)日：2021-09-09

申请号：US17260098

申请日：2019-07-12

Applicant: LG Electronics Inc.

Inventor： Kangwook LEE ,  Jungsun CHOI ,  Cheolhwan KIM

IPC: F04C18/02

Abstract: Provided is a compressor apparatus comprising: a casing defining appearance of the apparatus; and a drive portion coupled to an inner circumferential surface of the casing and configured to rotate a rotatable shaft; a compression portion coupled to the rotatable shaft and configured to compress fluid, wherein the compression portion apparatus is characterized in that the drive portion and the compression portion are fixed to the fastening member which is detachably attached to at least one of the side face of the drive portion or the side face of the compression portion and thus, the combination of the drive portion and the compression portion is coupled to an inner circumferential surface of the casing. Further, provided is a manufacturing method of the compression portion apparatus.

公开(公告)号：US20200263544A1

公开(公告)日：2020-08-20

申请号：US16790234

申请日：2020-02-13

Applicant: LG Electronics Inc.

Inventor： Sangbaek PARK ,  Jungsun CHOI ,  Cheolhwan KIM

IPC: F01C17/06 ,  F01C21/08

Abstract: A compressor includes a rotation shaft, a drive unit, and a compression unit. The compression unit includes a fixed scroll, an orbiting scroll, a main frame that is disposed on the fixed scroll, and an Oldham's ring coupled to the orbiting scroll and the main frame and configured to restrict rotation of the orbiting scroll. The Oldham's ring includes a ring body disposed between the orbiting scroll and the main frame, keys that protrude from the ring body that are each coupled to the orbiting scroll or the main frame, and caps that are inserted into the main frame and that each have (i) a coupling hole that receives a key among the keys and (ii) a machined portion that faces the coupling hole and that is spaced apart from at least a portion of an outer surface of the key.