公开(公告)号：US20200256600A1

公开(公告)日：2020-08-13

申请号：US16788966

申请日：2020-02-12

Applicant: LG Electronics Inc.

Inventor： Nayoung JEON ,  Taekyoung KIM ,  Cheolhwan KIM

IPC: F25B43/02 ,  F04C29/02

Abstract: A compressor include a casing, a drive unit including a stator and a rotor accommodated in the stator, a rotation shaft coupled to the rotor and configured to be rotated by the rotor, a compression unit that is coupled to the rotation shaft, that is lubricated with the oil, and that is configured to compress and discharge the refrigerant, and an oil-separator that is disposed between the discharge part and the drive unit and that is configured to separate the oil from the refrigerant and guide the refrigerant to the discharge part. The oil-separator includes a centrifugal separator configured to rotate together with the rotation shaft and configured to generate a centrifugal force to separate the oil from the refrigerant, and a coupler coupled to the rotor or the rotation shaft and configured to rotate the centrifugal separator based on rotation of the rotating shaft.

公开(公告)号：US20200227959A1

公开(公告)日：2020-07-16

申请号：US16550941

申请日：2019-08-26

Applicant: LG ELECTRONICS INC.

Inventor： Woogyong YIM ,  Jehoon KIM ,  Ochang GWON ,  Taekyoung KIM

IPC: H02K1/27 ,  F04B17/03 ,  H02K15/03

Abstract: A driving motor includes a stator having an accommodating space formed therein and a rotor having a magnetic member. The rotor is rotatably supported in the accommodating space, and rotated by a magnetic interaction with the stator. The rotor may include a plurality of stacked bodies, with the stacked bodies including at least two magnetic members having different magnetic forces from each other.

公开(公告)号：US20200149548A1

公开(公告)日：2020-05-14

申请号：US16680937

申请日：2019-11-12

Applicant: LG Electronics Inc.

Inventor： Taekyoung KIM ,  Kangwook LEE ,  Cheolhwan KIM

IPC: F04D29/42 ,  F25B49/02 ,  B01D45/16 ,  H02K5/22

Abstract: A compressor includes a case, a driving motor including a stator mounted inside the case and a rotor disposed radially inward of the stator and rotatable, a centrifugation space defined inside the case by one side of the driving motor and the case, a discharge pipe passing through the case and having a distal end defining a refrigerant inlet hole extending into the centrifugation space, a rotation shaft coupled to the rotor to rotate, a compressing portion defined at the other side of the driving motor, wherein the refrigerant is compressed by rotation of the rotation shaft, and a terminal disposed on a side of the case that is a side of the centrifugation space, where the terminal is connected to a coil of the stator.

公开(公告)号：US20200032803A1

公开(公告)日：2020-01-30

申请号：US16510464

申请日：2019-07-12

Applicant: LG Electronics Inc.

Inventor： Howon LEE ,  Taekyoung KIM ,  Cheolhwan KIM

IPC: F04C29/12 ,  F04C18/02

Abstract: Disclosed herein is a scroll compressor in which the discharge hole is formed to have an axial length less than an axial length of the fixed shaft accommodation portion, thereby increasing efficiency.

公开(公告)号：US20190309753A1

公开(公告)日：2019-10-10

申请号：US16378653

申请日：2019-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Nayoung JEON ,  Taekyoung KIM ,  Cheolhwan KIM

IPC: F04C29/12 ,  F04C18/02

Abstract: A scroll compressor may include a second scroll provided between a frame and a first scroll and forming compression chambers with the first scroll while orbiting relative to the first scroll; a discharge port provided in the first scroll to allow refrigerant compressed in the compression chamber to a lower side of the first scroll; a discharge passage formed through the first scroll and the frame to guide the refrigerant discharged through the discharge port to an upper side of the frame; and a discharge cover coupled to the first scroll and having a space to accommodate end portions of the discharge port and the discharge passage to guide the refrigerant discharged through the discharge port to the discharge passage. A volume of a discharge space defined in the space by the first scroll may be 4.5 or more, obtained by dividing a volume of the discharge space by a total volume of an initial compression chamber among the compression chambers.

公开(公告)号：US20180328364A1

公开(公告)日：2018-11-15

申请号：US15975806

申请日：2018-05-10

Applicant: LG ELECTRONICS INC.

Inventor： Cheolhwan KIM ,  Kangwook LEE ,  Taekyoung KIM ,  Byeongchul LEE

IPC: F04C29/02 ,  F04C29/00 ,  F04C18/02 ,  B01D45/14 ,  B01D50/00

CPC classification number: F04C29/026 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/045 ,  F04C29/12

Abstract: A scroll compressor includes a casing, and an internal sealed space in the casing; a drive motor configured with a stator and a rotor which rotates within the stator, and that has an internal flow passage and an external flow passage; a rotation shaft connected to the rotor; a compression unit that includes a first scroll, and a second scroll which is engaged with the first scroll to form a compression chamber, with which the rotation shaft is eccentrically combined; a discharge pipe that communicates with an upper space of the internal space; an oil separation member disposed in the upper space; and a guidance member that is provided between an upper end of the drive motor and a lower end of the discharge pipe and guides the refrigerant with which the oil is mixed, to the oil separation member.

公开(公告)号：US20170306964A1

公开(公告)日：2017-10-26

申请号：US15448955

申请日：2017-03-03

Applicant: LG ELECTRONICS INC.

Inventor： Taekyoung KIM ,  Kangwook LEE ,  Cheolhwan KIM ,  Byeongchul LEE

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

CPC classification number: F04C29/026 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/0085 ,  F04C29/023 ,  F04C29/12 ,  F04C2210/22 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/603

Abstract: A scroll compressor is provided that may include a casing that contains oil in a lower space thereof; a drive motor provided at a position spaced from an upper end of the casing by a predetermined gap, such that an upper space is formed in the casing; a rotational shaft coupled to a rotor of the drive motor, and having an oil supply passage to guide the oil contained in the casing to an upper side of the drive motor; a frame provided below the drive motor; a fixed scroll provided below the frame, and having a fixed wrap; an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap so as to form a compression chamber by being engaged with the fixed wrap, and a rotational shaft coupling portion to couple the rotational shaft to the orbiting scroll in a penetrating manner; and an oil collection unit including an oil separator provided at the upper space of the casing, and an oil guide having a first end that communicates with the oil separator and a second end that communicates with a lower space of the fixed scroll.