公开(公告)号：US20240077080A1

公开(公告)日：2024-03-07

申请号：US18138920

申请日：2023-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Changeol JO ,  Jeonghun KIM ,  Nara HAN ,  Jihoon PARK

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

CPC classification number: F04C29/124 ,  F04C18/0215 ,  F04C29/0035

Abstract: A scroll compressor is disclosed. The scroll compressor may include a back pressure hole formed through a non-orbiting scroll and a back pressure chamber assembly such that a compression chamber and a back pressure chamber communicate with each other. A back pressure valve may be disposed inside of the back pressure hole and move along a longitudinal direction of the back pressure hole by a pressure difference between the compression chamber and the back pressure chamber, to vary a flow path area of the back pressure hole. The back pressure valve may include a valve body that extends in an axial direction and a plurality of holes formed through the valve body in the axial direction. With the configuration, pressure pulsation in the back pressure chamber may be suppressed or prevented.

公开(公告)号：US20230400024A1

公开(公告)日：2023-12-14

申请号：US18109559

申请日：2023-02-14

Applicant: LG ELECTRONICS INC.

Inventor： Changeol JO ,  Jeonghun KIM ,  Nara HAN ,  Jihoon PARK

IPC: F04C18/02 ,  F04C29/12

CPC classification number: F04C18/0261 ,  F04C18/0215 ,  F04C29/124

Abstract: A scroll compressor is provided. In the scroll compressor, a valve accommodating groove that accommodates a discharge port and bypass holes is recessed by a predetermined depth into a rear surface of a non-orbiting scroll, and a valve guide is disposed between the rear surface of the non-orbiting scroll and a rear surface of the back pressure chamber assembly facing the rear surface of the non-orbiting scroll. Bypass valve guide holes into which bypass valves that open and close the bypass holes are slidably inserted are formed in the valve guide. Accordingly, the bypass valves that suppress or prevent overcompression in compression chambers are not fastened to a non-orbiting end plate, which may allow the non-orbiting end plate to be reduced in thickness. As the non-orbiting end plate is reduced in thickness, lengths of the bypass holes may be reduced, thereby decreasing dead volumes in the bypass holes.

公开(公告)号：US20240102469A1

公开(公告)日：2024-03-28

申请号：US18367576

申请日：2023-09-13

Applicant: LG ELECTRONICS INC.

Inventor： Jeonghun KIM ,  Changeol JO ,  Nara HAN ,  Juhwan YUN

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

CPC classification number: F04C18/0215 ,  F04C28/26 ,  F04C29/128 ,  F04C2270/185

Abstract: A scroll compressor is provided that may include a block insertion groove configured to accommodate a discharge port and at least one bypass hole disposed in a rear surface of a non-orbiting end plate of a non-orbiting scroll, and a retainer block including at least one bypass valve configured to open or close the at least one bypass hole inserted into the block insertion groove. The at least one bypass hole may include a first bypass hole and a second bypass hole. The at least one bypass valve may include a first bypass valve configured to open or close the first bypass hole and a second bypass valve configured to open or close the second bypass hole, and may be disposed between the block insertion groove and the retainer block facing the block insertion groove. Accordingly, the first and second bypass valves that suppress or prevent overcompression in a compression chamber are not fastened to the non-orbiting end plate, which may allow the non-orbiting end plate to be made thin. As the non-orbiting end plate may be reduced in thickness, a length of the first and second bypass holes may be reduced, thereby decreasing a dead volume in the first and second bypass holes.

公开(公告)号：US20220136501A1

公开(公告)日：2022-05-05

申请号：US17512967

申请日：2021-10-28

Applicant: LG ELECTRONICS INC.

Inventor： Juhwan YUN ,  Nara HAN ,  Mose KANG ,  Jihoon PARK

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

Abstract: A scroll compressor is provided that may include a casing, a drive motor, an orbiting scroll, a non-orbiting scroll, and a floating plate provided with a cover portion to cover an area between an outer wall portion and an inner wall portion of the non-orbiting scroll so as to form a back pressure chamber with the non-orbiting scroll, and a valve accommodating portion that extends from the cover portion so as to accommodate a discharge valve configured to open and close a discharge port. Accordingly, structure for forming a back pressure chamber is simplified to thereby reduce the number of components and man-hours required for assembly.

公开(公告)号：US20210262467A1

公开(公告)日：2021-08-26

申请号：US17181140

申请日：2021-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Jun Ha PARK ,  Nara HAN ,  Hae Jin PARK ,  Sangjin OH

IPC: F04C18/02

Abstract: A compressor may include a casing; an electric motor provided in the casing and that operates a rotational shaft; and a compression device. A flow path guide may be installed between the electric motor and the compression device, and may separate a refrigerant flow path from an oil flow path. The flow path guide may have a first partition wall and a second partition wall which are spaced apart from each other. In addition, the flow path guide may have an oil discharge port formed in at least a section of the flow path guide along a circumferential direction thereof, the oil discharge port allowing a guide space between the first partition wall and the second partition wall to be open toward the inner surface of the casing.

公开(公告)号：US20150316058A1

公开(公告)日：2015-11-05

申请号：US14703159

申请日：2015-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun JIN ,  Munyoung LEE ,  Nara HAN

IPC: F04C27/00

CPC classification number: F04C18/0215 ,  F04C23/008 ,  F04C27/005 ,  F04C27/008 ,  F04C28/26 ,  F04C29/02 ,  F04C29/122 ,  F05C2225/04 ,  F05C2251/14 ,  F05C2253/04

Abstract: A scroll compressor is provided that may include a first scroll, a second scroll that defines a plurality of compression chambers together with the first scroll, the second scroll having a discharge hole that communicates with a compression chamber among the plurality of compression chambers, a back pressure plate that defines a back pressure chamber to accommodate a refrigerant discharged from the discharge hole, a floating plate to define the back pressure chamber, and a sealing member to prevent the refrigerant from flowing between a first surface, which may be a sliding surface of the floating plate, and a second surface, which may face the first surface, of the back pressure plate. The sealing member may include a seal cover that contacts the other one of the first and second surfaces, and a seal, a portion of which may be accommodated in the seal cover. The seal cover may have a friction coefficient less than a friction coefficient of the seal.

Abstract translation: 提供一种涡旋式压缩机，其可以包括第一涡旋件，与第一涡旋件一起限定多个压缩室的第二涡旋件，第二涡旋件具有与多个压缩室中的压缩室连通的排出孔， 限定背压室以容纳从排出孔排出的制冷剂的压力板，限定背压室的浮动板和用于防止制冷剂在第一表面之间流动的密封构件，第一表面可以是 浮板和可能面向第一表面的第二表面的背压板。 密封构件可以包括接触第一和第二表面中的另一个的密封盖，以及密封件，其一部分可以容纳在密封盖中。 密封盖可具有小于密封件的摩擦系数的摩擦系数。

公开(公告)号：US20150316053A1

公开(公告)日：2015-11-05

申请号：US14693946

申请日：2015-04-23

Applicant: LG ELECTRONICS INC.

Inventor： Nara HAN ,  Kiuk LEE ,  Kiwon PARK

IPC: F04C18/02 ,  F04C29/00

CPC classification number: F04C18/0223 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/005 ,  F04C2240/52 ,  Y10T29/49242

Abstract: A scroll compressor and a method for assembling a scroll compressor are provided. The scroll compressor may include a casing including a rotational shaft, a main frame coupled to an inside of the casing, a first scroll that revolves due to rotation of the rotational shaft, the first scroll being supported by the main frame, and a second scroll disposed on or at a side of the first scroll to define a plurality of compression chambers together with the first scroll. The second scroll may include a head plate including a wrap, and at least one coupling guide that extends from the head plate. The at least one coupling guide may include a first reference pin coupling hole, into which a reference pin may be inserted, and a guide hole, into which a coupling member may be inserted.

Abstract translation: 提供了一种涡旋压缩机和一种用于组装涡旋压缩机的方法。 涡旋压缩机可以包括壳体，其包括旋转轴，联接到壳体的内部的主框架，由于旋转轴的旋转而旋转的第一涡旋盘，第一涡旋盘被主框架支撑，第二涡旋件 设置在第一涡旋件的一侧或侧面，以与第一涡旋件一起限定多个压缩室。 第二涡卷可以包括包括涡卷的头板和从头板延伸的至少一个联接引导件。 所述至少一个联接引导件可以包括可以插入参考销的第一参考销联接孔和可以插入联接构件的引导孔。