公开(公告)号：WO2018230876A1

公开(公告)日：2018-12-20

申请号：PCT/KR2018/006371

申请日：2018-06-04

Applicant: LG ELECTRONICS INC.

Inventor： SEONG, Sanghun ,  YOO, Byungkil ,  JEON, Nayoung

IPC: F04C18/02 ,  F04C28/26 ,  F04C28/22 ,  F04C29/12

CPC classification number: F04C28/18 ,  F04C18/0215 ,  F04C18/0261 ,  F04C23/008 ,  F04C27/005 ,  F04C28/26 ,  F04C28/265 ,  F04C2210/26 ,  F04C2240/20 ,  F04C2240/30

Abstract: A scroll compressor includes a casing accommodating a rotary shaft and a driving unit, a first scroll making an orbiting movement by the rotary shaft, a second scroll engaged with the first scroll to form a compression chamber and having a bypass hole bypassing a refrigerant sucked into the compression chamber to an internal space of the casing, and a back-pressure chamber assembly pressing the second scroll toward the first scroll, wherein the back-pressure chamber assembly includes: a back-pressure space, a first valve unit allowing the bypass hole and the internal space of the casing to selectively communicate with each other, and a second valve unit opened and closed to selectively supply the refrigerant of the back-pressure space to the first valve unit to operate the first valve unit, and positioned to be fixed to the casing.

公开(公告)号：EP3569863B1

公开(公告)日：2020-11-11

申请号：EP19175017.3

申请日：2019-05-17

Applicant: LG ELECTRONICS INC.

Inventor： JEON, Nayoung ,  KIM, Taekyoung ,  KIM, Cheolhwan

IPC: F04C18/02 ,  F04C23/00 ,  F04C29/02 ,  F04C29/04

公开(公告)号：EP3553318A1

公开(公告)日：2019-10-16

申请号：EP19167778.0

申请日：2019-04-08

Applicant: LG Electronics Inc.

Inventor： JEON, Nayoung ,  KIM, Taekyoung ,  KIM, Cheolhwan

IPC: F04C23/00 ,  F04C29/00 ,  F04C29/06 ,  F04C18/02 ,  F04C29/12

Abstract: A scroll compressor according to the present invention includes: 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 part for accommodating end portions of the discharge port and the discharge passage to guide the refrigerant discharged through the discharge port to the discharge passage, wherein a volume of a discharge space defined in the space part by the first scroll is 4.5 or more, obtained by dividing the volume of the discharge space by a stroke volume as a total volume of an initial compression chamber among the compression chambers.

公开(公告)号：EP3696416A1

公开(公告)日：2020-08-19

申请号：EP20156884.7

申请日：2020-02-12

Applicant: LG Electronics Inc.

Inventor： JEON, Nayoung ,  KIM, Taekyoung ,  KIM, Cheolhwan

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

Abstract: Compressor including a casing (100) configured to include a discharge part (121) for discharging a refrigerant on one side and a reservoir space for storing oil, a driver (200) including a stator (210) coupled to an inner circumferential surface of the casing and generating a rotating magnetic field, and a rotor (220) accommodated in the stator and rotated by the rotating magnetic field, a rotation shaft (230) coupled to the rotor (220) and rotating together with the rotor, a compression unit (300) coupled to the rotation shaft (230) and lubricated with the oil, wherein the compression unit (300) compresses and discharges the refrigerant, and an oil-separator (600) disposed between the discharge part (121) and the driver (200) for separating the oil from the refrigerant to be guided to the discharge part , wherein the oil-separator includes a centrifugal separator (620) rotating together with the rotation shaft (230) to provide a centrifugal force for separating the oil from the refrigerant, and a coupler (610) for coupling the centrifugal separator (620) to the driver (200) such that the centrifugal separator and the rotation shaft (230) rotate together, and wherein the coupler is coupled to the rotor (220) or the rotation shaft (230).

公开(公告)号：EP3584445A1

公开(公告)日：2019-12-25

申请号：EP19180799.9

申请日：2019-06-18

Applicant: LG Electronics Inc.

Inventor： JEON, Nayoung ,  KIM, Taekyoung ,  KIM, Cheolhwan

IPC: F04C23/00 ,  F04C18/02

Abstract: A compressor is disclosed. The compressor includes a case having an oil reservoir space for storing oil in a lower portion of the case and a refrigerant discharge pipe for discharging a compressed refrigerant in an upper portion of the case, a drive motor provided in the case, a rotary shaft rotatably coupled to the drive motor, a compression unit coupled to the rotary shaft to compress the refrigerant, and a discharge cover hermetically coupled to a lower end of the compression unit and configured to guide an oil-containing refrigerant compressed by the compression unit toward the refrigerant discharge pipe, wherein a guide is provided between the compression unit and the discharge cover and configured to guide an oil-containing refrigerant discharged from the compression unit toward the refrigerant discharge pipe.

公开(公告)号：EP3647594A1

公开(公告)日：2020-05-06

申请号：EP19206206.5

申请日：2019-10-30

Applicant: LG Electronics Inc.

Inventor： LEE, Kangwook ,  JEON, Nayoung ,  KIM, Cheolhwan

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

Abstract: There is disclosed a compressor comprising a case comprising a discharging part provided one side and configured to discharge a refrigerant, the case defining a predetermined space for storing oil; a drive part comprising a rotor coupled to an inner circumferential surface of the case and having coils wounded there around and configured to generate a rotation magnetic field, and a rotor mounted in the rotor and configured to be rotatable by the rotation magnetic field; a shaft extending in a state of being coupled to the rotor; a compression part lubricated by the oil in a state of being coupled to the shaft and configured to compress and discharge the refrigerant; and a sealing part extending from the stator towards the compression part and configured to induce the winding of the coil.

公开(公告)号：EP4279743A1

公开(公告)日：2023-11-22

申请号：EP22217268.6

申请日：2022-12-30

Applicant: LG Electronics, Inc.

Inventor： PARK, Sangbaek ,  JEON, Nayoung ,  KIM, Cheolhwan

IPC: F04C29/02 ,  F04C29/12 ,  F04C18/02 ,  F04C18/356 ,  F04C23/00

Abstract: The present disclosure relates to is a compressor. The compressor may be provided with a communication hole (1161) between an inlet (116a) and an outlet (116b) of a refrigerant discharge pipe (116) coupled through an upper surface of a casing (110), the communication hole penetrating between an outer circumferential surface and an inner circumferential surface of the refrigerant discharge pipe. Thus, during oil sealing through the refrigerant discharge pipe, a flux path area of a driving motor (120) may be ensured, and a number of winding wires and/or a coil diameter of a stator coil may be ensured. Thus, efficiency of the driving motor may be maintained and backflow or overflow of oil through the refrigerant discharge pipe may be suppressed. In addition, during operation of the compressor, oil may be suppressed from being excessively leaked through the refrigerant discharge pipe without having to include a separate oil separator inside or inside the casing.

公开(公告)号：EP4043694A1

公开(公告)日：2022-08-17

申请号：EP21217247.2

申请日：2021-12-23

Applicant: LG Electronics Inc.

Inventor： JEON, Nayoung ,  PARK, Sangbaek ,  KIM, Cheolhwan

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

Abstract: The present disclosure relates to a scroll compressor and an air conditioner having the same, and the scroll compressor includes a flow path guide disposed between a motor unit and a compression unit to separate a refrigerant flow path and an oil flow path. A guide discharge hole communicating with a discharge passage of the compression unit is formed axially through the flow path guide and a guide passage communicating with the guide discharge hole is annularly defined, such that a discharge guide protrusion surrounding the guide discharge hole extends toward the motor unit. Accordingly, inner and outer spaces of the flow path guide can communicate with each other while the refrigerant flow path and the oil flow path are separated, which results in securing a space of an oil recovery passage to allow quick oil recovery and simplifying a structure of the flow path guide to reduce manufacturing costs.

公开(公告)号：EP3569863A1

公开(公告)日：2019-11-20

申请号：EP19175017.3

申请日：2019-05-17

Applicant: LG ELECTRONICS INC.

Inventor： JEON, Nayoung ,  KIM, Taekyoung ,  KIM, Cheolhwan

IPC: F04C18/02 ,  F04C23/00 ,  F04C29/02 ,  F04C29/04

Abstract: Disclosed is a scroll compressor with a refrigerant discharge flow passage and an oil recovery flow passage separated from each other to improve efficiency and reliability of the compressor. The scroll compressor includes a flow passage separation unit configured to separate an intermediate space between a drive unit and a compression unit into an inner space communicating with the refrigerant flow passage and an outer space communicating with the oil flow passage to separate the refrigerant discharge path from the oil recovery path. Accordingly, the present invention may prevent the oil from being mixed with the discharged refrigerant, thereby reducing an oil discharge amount.