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：US20200088195A1

公开(公告)日：2020-03-19

申请号：US16573480

申请日：2019-09-17

Applicant: LG Electronics Inc.

Inventor： Byungkil YOO ,  Kyoungjun PARK ,  Byeongchul LEE ,  Yongkyu CHOI

IPC: F04C29/00 ,  F04C23/02

Abstract: A scroll type compressor includes a motor including a rotor; a rotatable shaft coupled to the rotor; a frame disposed adjacent to the motor to support the rotatable shaft; a fixed scroll coupled to the frame; an orbiting scroll eccentrically coupled to the rotatable shaft, wherein the orbiting scroll is engaged with the fixed scroll to orbit relative to the fixed scroll; and a balance weight including: a coupling portion having an inner opening defined therein receiving the rotatable shaft, wherein the coupling portion is coupled to and between the rotor and the frame; and a weight portion extending from an outer periphery of the coupling portion.

公开(公告)号：US20190309749A1

公开(公告)日：2019-10-10

申请号：US16352111

申请日：2019-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Byungkil YOO ,  Jaesang LEE ,  Jinyong JANG ,  Soonyong CHOI

IPC: F04C18/02 ,  F04C29/02

Abstract: A motor operated compressor according to the present invention has a driving motor having a stator and a rotor. A rotation shaft of the motor is coupled to the rotor. The compressor also has a frame, a fixed scroll positioned on one side of the frame, and an orbiting scroll supported on the frame and positioned between the fixed scroll and the frame. The fixed scroll forms a compression chamber together with the orbiting scroll. The driving motor, the fixed scroll, the orbiting scroll, and the frame are positioned within a casing of the compressor. The rotation shaft rotatably passes through the fixed scroll and the frame and is to eccentrically coupled to the orbiting scroll, allowing the orbiting scroll to perform an orbiting motion relative to the fixed scroll. One end portion of the rotation shaft is supported by the fixed scroll while the other end is supported by the casing.

公开(公告)号：US20190242384A1

公开(公告)日：2019-08-08

申请号：US16261794

申请日：2019-01-30

Applicant: LG ELECTRONICS INC.

Inventor： Byungkil YOO ,  Honghee PARK ,  Jinyong JANG ,  Jongtae HER

IPC: F04C29/12 ,  F04C18/02

CPC classification number: F04C29/124 ,  F04C18/0215

Abstract: An electric compressor includes a first scroll, a second scroll engaged with the first scroll and configured to form a compression chamber between portions of the second scroll and the first scroll during orbiting motion of the second scroll relative to the first scroll, and a frame fixed on an opposite side of the second scroll from the first scroll. A back-pressure space is formed between the frame and the second scroll, and pressure in the back-pressure space pushes the second scroll toward the first scroll. A back-pressure passage connects the compression chamber and the back-pressure space, and a valve member is disposed in the back-pressure passage and selectively blocks movement of a fluid from the back-pressure space to the compression chamber.

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：US20200224659A1

公开(公告)日：2020-07-16

申请号：US16735811

申请日：2020-01-07

Applicant: LG ELECTRONICS INC.

Inventor： Byungkil YOO ,  Kyoungjun PARK ,  Yongkyu CHOI ,  Sanghun SEONG

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

Abstract: A compressor includes a main housing having an internal space, a motor provided in the main housing and comprising a stator and a rotor, a shaft coupled to the rotor, and a shaft mounting portion provided at one end of the shaft and having a smaller diameter than the shaft. A sub-ball bearing is coupled to the shaft mounting portion, and a fixing latch is coupled to the shaft mounting portion. The fixing latch includes a latching portion configured to constrain the sub-ball bearing in the shaft mounting portion.

公开(公告)号：US20190277289A1

公开(公告)日：2019-09-12

申请号：US16207380

申请日：2018-12-03

Applicant: LG ELECTRONICS INC.

Inventor： Byungkil YOO ,  Sanghun SEONG ,  Jinyong JANG ,  Dongwoo MIN ,  Kyoungjun PARK ,  Junghoon PARK ,  Byeongchul LEE

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

Abstract: A scroll compressor is disclosed. The scroll compressor includes a first scroll and a second scroll engaged with the first scroll and configured to perform an orbiting movement. The second scroll forms a compression chamber between the first scroll and the second scroll. The scroll compressor includes a frame positioned opposite the first scroll with the second scroll interposed therebetween. The scroll compressor also includes an oldham ring that has an annular ring portion and a key portion protruding from the ring portion. The key portion is slidably coupled to a key groove provided in the frame or in the second scroll to allow the second scroll to perform an orbiting movement with respect to the first scroll. The scroll compressor also include a reinforcing member coupled to the key portion. The reinforcing member is positioned between the key groove and the key portion.

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.