公开(公告)号：US11293439B2

公开(公告)日：2022-04-05

申请号：US16600023

申请日：2019-10-11

Applicant: LG ELECTRONICS INC.

Inventor： Seungmock Lee ,  Cheolhwan Kim

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

Abstract: A compressor includes: a case including a discharge part configured to discharge refrigerant and defining a reservoir space configured to store oil; a drive unit including a stator and a rotor; a rotary shaft coupled to the rotor; a compression unit coupled to the rotary shaft and lubricated with oil, the compression unit being configured to compress refrigerant and discharge compressed refrigerant in a direction away from the discharge part; a muffler coupled to the compression unit and configured to guide refrigerant to the discharge part; a separator coupled to at least one of the rotor or the rotary shaft and configured to separate oil from refrigerant guided to the discharge part; and a coupling unit that fixes the separator to the at least one of the rotor or the rotary shaft.

公开(公告)号：US11486397B2

公开(公告)日：2022-11-01

申请号：US17274031

申请日：2019-09-04

Applicant: LG Electronics Inc.

Inventor： Seungmock Lee ,  Jonghun Ha ,  Cheolhwan Kim

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

Abstract: Disclosed herein is a scroll compressor having a shaft balancer capable of attenuating vibration while preventing deformation of the rotary shaft during operation at a high speed.

公开(公告)号：US11585344B2

公开(公告)日：2023-02-21

申请号：US17125181

申请日：2020-12-17

Applicant: LG Electronics Inc.

Inventor： Seungmock Lee ,  Cheolhwan Kim

IPC: F04C29/06 ,  F04C2/02 ,  F04C15/06 ,  F04C18/02 ,  F04C23/00

Abstract: The present disclosure relates to a compressor including a branch part for reducing vibration and noise caused by a refrigerant flowing inside a muffler by expanding an enclosed space formed by a compression part and the muffler in the direction of a rotation axis.

公开(公告)号：US11566623B2

公开(公告)日：2023-01-31

申请号：US17834264

申请日：2022-06-07

Applicant: LG Electronics Inc.

Inventor： Seungmock Lee ,  Jonghun Ha ,  Cheolhwan Kim

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

Abstract: Disclosed herein is a scroll compressor having a shaft balancer capable of attenuating vibration while preventing deformation of the rotary shaft during operation at a high speed.

公开(公告)号：US11454238B2

公开(公告)日：2022-09-27

申请号：US17153431

申请日：2021-01-20

Applicant: LG Electronics Inc.

Inventor： Taeksu Jung ,  Jonghun Ha ,  Kangwook Lee ,  Seungmock Lee

IPC: F04C18/02 ,  F04C2/02 ,  F01C17/06 ,  F04C29/06 ,  F04C29/00

Abstract: A compressor includes a deformable groove spaced apart from a key groove and deformable to reduce an impact force or stress generated at an Oldham's ring.

公开(公告)号：US12129854B2

公开(公告)日：2024-10-29

申请号：US17274037

申请日：2019-09-04

Applicant: LG Electronics Inc.

Inventor： Seungmock Lee ,  Jonghun Ha ,  Cheolhwan Kim ,  Kangwook Lee

IPC: F04C29/06 ,  F04C2/02 ,  F04C23/00 ,  F04C29/12

CPC classification number: F04C29/061 ,  F04C2/025 ,  F04C23/008 ,  F04C29/065 ,  F04C29/066 ,  F04C29/12 ,  F05D2260/963

Abstract: The present invention relates to a compressor comprising: a muffler that provides a sealed space for guiding a refrigerant; and a resonator provided in the muffler and forming cavities separate from the sealed space to decrease vibration and noise caused by the refrigerant.

公开(公告)号：US20220228587A1

公开(公告)日：2022-07-21

申请号：US17536222

申请日：2021-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Jonghun Lee ,  Seoungmin Kang ,  Seungmock Lee

IPC: F04C2/356

Abstract: A rotary compressor is provided that may include a cylinder having an inner circumferential surface with an annular shape to form a compression space; a roller having a plurality of vane slots disposed at predetermined intervals along an outer circumferential surface thereof, and rotatably inserted into the compression space of the cylinder; and a plurality of vanes slidably inserted into the respective vane slots to rotate together with the roller and by which the compression space is divided into a plurality of compression chambers. At least one of the vane slots is unequally spaced in a circumferential direction. Accordingly, periodicity of noise may be reduced to thereby increase the effect of noise reduction of the compressor.

公开(公告)号：US10047748B2

公开(公告)日：2018-08-14

申请号：US14591410

申请日：2015-01-07

Applicant: LG ELECTRONICS INC.

Inventor： Youngboo Son ,  Jonghun Ha ,  Seungmock Lee

IPC: F04C23/00 ,  F04C29/00 ,  F04C18/02 ,  F04C18/08 ,  F04C11/00 ,  F04C18/00

Abstract: A rotary compressor, a method of manufacturing a rotary compressor, and an apparatus for manufacturing a rotary compressor are provided. The rotary compressor may include a case having an inner space, a stator to which power may be applied, the stator being disposed in the case, and a compression mechanism disposed on or at one side of the stator to generate a compression force of a refrigerant. The compression mechanism may include a rotational shaft, a cylinder that accommodates a roller coupled to the rotational shaft, a main bearing coupled a first side of the cylinder, and a sub bearing coupled to a second side of the cylinder. The main bearing may be press-fitted and fixed to an inner surface of the case.

公开(公告)号：US11732584B2

公开(公告)日：2023-08-22

申请号：US17536222

申请日：2021-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Jonghun Lee ,  Seoungmin Kang ,  Seungmock Lee

IPC: F01C21/08 ,  F04C18/344

CPC classification number: F01C21/0809 ,  F04C18/3446 ,  F04C2240/10 ,  F04C2250/30

Abstract: A rotary compressor is provided that may include a cylinder having an inner circumferential surface with an annular shape to form a compression space; a roller having a plurality of vane slots disposed at predetermined intervals along an outer circumferential surface thereof, and rotatably inserted into the compression space of the cylinder; and a plurality of vanes slidably inserted into the respective vane slots to rotate together with the roller and by which the compression space is divided into a plurality of compression chambers. At least one of the vane slots is unequally spaced in a circumferential direction. Accordingly, periodicity of noise may be reduced to thereby increase the effect of noise reduction of the compressor.

公开(公告)号：US11441562B2

公开(公告)日：2022-09-13

申请号：US16811764

申请日：2020-03-06

Applicant: LG Electronics Inc.

Inventor： Seungmock Lee ,  Cheolhwan Kim

IPC: F04C15/06 ,  F04C18/02 ,  F04C29/06 ,  F04C29/12 ,  F04C23/00

Abstract: Disclosed herein is a scroll compressor including a casing, a drive motor arranged in the casing, a shaft coupled to the drive motor, a main frame arranged under the drive motor, a fixed scroll arranged under the main frame, an orbiting scroll arranged between the main frame and the fixed scroll and engaged with the fixed scroll to form a compression chamber with the shaft eccentrically coupled to the orbiting scroll, a discharge cover coupled to the fixed scroll to form a closed space, a discharge port formed in the fixed scroll to connect the compression chamber and the closed space, and a discharge hole passing through the main frame and the fixed scroll, wherein an inlet and an inner portion of the discharge hole have different cross-sectional areas. The scroll compressor can reduce the noise caused by movement of the refrigerant by improving the structure of the discharge holes.