公开(公告)号：US20230383747A1

公开(公告)日：2023-11-30

申请号：US18149973

申请日：2023-01-04

Applicant: LG Electronics Inc.

Inventor： Honghee PARK ,  Jaesang LEE ,  Byeonghun YU ,  Sooho JANG

IPC: F04C2/02 ,  F04C15/00

CPC classification number: F04C2/025 ,  F04C15/0088 ,  F04C2240/603

Abstract: A scroll compressor is disclosed. The scroll compressor may include an oil supply hole penetrating from an oil passage to an outer circumferential surface of a rotating shaft, and an oil supply groove communicating with the oil supply hole and formed along the outer circumferential surface of the rotating shaft. The oil supply groove may be provided in plurality axially spaced apart by a preset distance. This can prevent the oil supply groove from invading an oil film section and increase centrifugal force against oil in the oil supply groove, thereby suppressing friction loss and wear between a main frame and the rotating shaft.

公开(公告)号：US20190316587A1

公开(公告)日：2019-10-17

申请号：US16381064

申请日：2019-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Sanghun SEONG ,  Honghee PARK ,  Bumjune SEO ,  Jinyong JANG

IPC: F04C29/02 ,  F04C18/02

Abstract: A motor-operated compressor includes a casing having an inner space including a suction space and a discharge space. A first scroll is disposed in the inner space of the casing. A second scroll is configured to orbit in engagement with the first scroll to form a pair of two compression chambers between the first scroll and the second scroll. A rotary shaft is coupled to the second scroll and configured to transfer a rotational force of a driving motor to the second scroll. An intermediate pressure space is formed on one side of the second scroll and in fluid communication with the discharge space. Oil entering the intermediate pressure space from the discharge space forms back pressure supporting the second scroll toward the first scroll, and a portion of the oil flows into the suction space.

公开(公告)号：US20230167819A1

公开(公告)日：2023-06-01

申请号：US17987446

申请日：2022-11-15

Applicant: LG Electronics Inc.

Inventor： Jinyong JANG ,  Sanghun SEONG ,  Honghee PARK ,  Byeonghun YU

IPC: F04C18/02 ,  F04C29/12

CPC classification number: F04C18/0215 ,  F04C29/12

Abstract: A scroll compressor includes a discharge guide disposed in a high-pressure part to guide refrigerant discharged from a compression part to a refrigerant discharge pipe, and the discharge guide may extend by a preset height from an inner circumferential surface of a casing constituting the high-pressure part toward one side surface of a high and low pressure separation plate. This can guide discharge refrigerant discharged to the high-pressure part to quickly flow to the refrigerant discharge pipe before being spread in an entire space of the high-pressure part, thereby preventing the high and low pressure separation plate from being overheated by discharge refrigerant of high temperature. This can result in preventing suction refrigerant of a low-pressure part from being heated by heat of discharge refrigerant transferred through the high and low pressure separation plate, thereby reducing a specific volume of the suction refrigerant and improving compressor efficiency.

公开(公告)号：US20210071663A1

公开(公告)日：2021-03-11

申请号：US17013064

申请日：2020-09-04

Applicant: LG ELECTRONICS INC.

Inventor： Honghee PARK ,  Junghoon PARK ,  Kyoungjun PARK ,  Byeongchul LEE

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

Abstract: A motor operated compressor according to the present embodiment may include a main housing; an electric motor unit; a rotation shaft; a fixed scroll coupled to an inner space of the main housing; an orbiting scroll provided that performs an orbiting movement with respect to the fixed scroll; a rear housing provided on an opposite side to the fixed scroll with the orbiting scroll therebetween and coupled to the main housing, and disposed with a first space to communicate with a discharge side of the compression chamber; and a first sealing portion provided to surround the first space to form a second space on an outer edge of the first space, wherein the second space includes a first region and a second region in fluid communication with each other. Accordingly, a horizontal motor operated compressor in which a frame and a fixed scroll are integrated may be provided.

公开(公告)号：US20200300245A1

公开(公告)日：2020-09-24

申请号：US16748896

申请日：2020-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Junghoon PARK ,  Honghee PARK ,  Gyeongbeom LEE ,  Byeongchul LEE

IPC: F04C29/02 ,  F04C18/02

Abstract: A motor-operated compressor is provided and includes an orbiting scroll and a rear housing supporting a rear surface of the orbiting scroll. The rear housing includes a discharge space communicating with a discharge port of the orbiting scroll formed at a central portion of a surface facing the orbiting scroll, an oil separation space formed at one side of the discharge space to communicate with the discharge space, and an oil storage space formed at an edge portion of the surface facing the orbiting scroll. An oil return passage is provided between the oil separation space and the oil storage space, so as to guide oil separated in the oil separation space to the oil storage space. Accordingly, a space for storing oil separated from a discharged refrigerant is sufficiently secured while allowing the rear housing defining the oil storage space to be easily fabricated.

公开(公告)号：US20230193902A1

公开(公告)日：2023-06-22

申请号：US17987529

申请日：2022-11-15

Applicant: LG Electronics Inc.

Inventor： Jaesang LEE ,  Sanghun SEONG ,  Honghee PARK ,  Sooho JANG

IPC: F04C18/02 ,  F04C29/12

CPC classification number: F04C18/0215 ,  F04C29/12

Abstract: In a scroll compressor, a discharge chamber is provided in an inner space of a back pressure chamber inner wall, a discharge port is provided inside the discharge chamber, a bypass hole is provided around the discharge port, and a communicating recess portion allowing the discharge chamber to communicate with the bypass hole is provided on an inner circumferential surface of the back pressure chamber inner wall forming the discharge chamber. Through this, the bypass hole may be easily configured in addition to the discharge port, thereby increasing an operation range of the compressor and suppressing overcompression.

公开(公告)号：US20210017992A1

公开(公告)日：2021-01-21

申请号：US16704518

申请日：2019-12-05

Applicant: LG Electronics Inc.

Inventor： Junghoon PARK ,  Honghee PARK ,  Bunjune SEO ,  Jinyong JANG

IPC: F04C29/00 ,  F04C18/02

Abstract: The present disclosure relates to an electrical compressor, comprising a housing, a compression part, a motor part, a first journal bearing coupled between a frame and a rotating shaft, a second journal bearing coupled between an eccentric part and an orbit scroll, and a ball bearing coupled to another end of the rotating shaft. The compression part comprises a fixed scroll disposed at an internal side of the housing, an orbit scroll configured to compress a refrigerant while orbiting the fixed scroll, and a frame configured to support the fixed scroll. The motor part comprises a rotating shaft comprising an eccentric part coupled to the orbit scroll at one end thereof, a stator disposed at another internal side of the housing, and a rotor rotatably disposed with respect to the stator and configured to rotate around the rotating shaft.

公开(公告)号：US20200332798A1

公开(公告)日：2020-10-22

申请号：US16796457

申请日：2020-02-20

Applicant: LG Electronics Inc.

Inventor： Junghoon PARK ,  Honghee PARK ,  Gyeongbeom LEE ,  Byeongchul LEE

IPC: F04C29/02 ,  F04C18/02 ,  F04C29/04 ,  F04C23/02

Abstract: The present disclosure provides a motor-operated compressor, comprising a main housing, a motor unit disposed at one end of the main housing, a rotating shaft coupled to the motor unit, a fixed scroll disposed at another end of the main housing facing the motor unit, an orbiting scroll coupled to the rotating shaft, and a rear housing disposed to face one side surface of the orbiting scroll opposite to a side of the orbiting scroll facing the fixed scroll. The rotating shaft may be rotatably coupled to the fixed scroll, and the orbiting scroll may be configured to perform an orbiting motion with respect to the fixed scroll. The orbiting scroll may be configured to form a compression space together with the fixed scroll and may comprise a discharge port. The rear housing may comprise a space portion configured to communicate with the discharge port of the orbiting scroll.

公开(公告)号：US20200158108A1

公开(公告)日：2020-05-21

申请号：US16547705

申请日：2019-08-22

Applicant: LG ELECTRONICS INC.

Inventor： Yongkyu CHOI ,  Honghee PARK ,  Bumjune SEO ,  Byeongchul LEE

IPC: F04C18/02

Abstract: A motor operated compressor has a housing having a motor chamber and a driving motor located in the motor chamber. The compressor also has a first scroll and a second scroll coupled to the first scroll to form a compression chamber. A rotating shaft is coupled to a rotor of the driving motor and eccentrically coupled to the first scroll. A rear housing of the motor forms a discharge chamber with the second scroll. A shaft receiving portion that radially supports the rotating shaft is located either in the second scroll or in the rear housing. An oil supply guide flow path located either in the second scroll or in the rear housing connects the discharge chamber and the shaft receiving portion. A decompression member inserted into the oil supply guide flow path, reduces a pressure of a fluid passing through the oil supply guide flow path.

公开(公告)号：US20240318653A1

公开(公告)日：2024-09-26

申请号：US18588301

申请日：2024-02-27

Applicant: LG ELECTRONICS INC.

Inventor： Honghee PARK ,  Wooyoung Kim ,  Byeonghun Yu

IPC: F04C18/02 ,  F04C29/00

CPC classification number: F04C18/0215 ,  F04C18/0261 ,  F04C29/0035 ,  F04C29/12

Abstract: A scroll compressor is provided that may include an orbiting scroll, a non-orbiting scroll, a back pressure chamber assembly, a back pressure passage, and a flow resistance portion. The back pressure passage may provide communication between a compression chamber and a back pressure chamber, and the flow resistance portion may be disposed at a middle portion of the back pressure passage to reduce an amount of refrigerant flowing through the back pressure passage. This may reduce a substantial cross-sectional area of the back pressure passage while improving machining of the back pressure passage, thereby decreasing an amount of refrigerant flowing between the compression chamber and the back pressure chamber. Accordingly, pressure pulsation in the back pressure chamber may be lowered and sealing stability between the orbiting scroll and the non-orbiting scroll may be enhanced, thereby improving compression performance.