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公开(公告)号：EP4279742A1
公开(公告)日：2023-11-22
申请号：EP23173708.1
申请日：2023-05-16
Applicant: LG Electronics Inc.
Inventor： NOH, Kiyoul , CHOI, Yongkyu , LEE, Minho
IPC: F04C18/344 , F04C29/04 , F04C29/12 , F04C18/356
Abstract: A rotary compressor is provided that may include a casing, a cylinder having an inner circumferential surface in an annular shape, a roller rotatably disposed in a compression space of the cylinder, a rotational shaft coupled to an inner circumference of the roller, main and sub bearings defining surfaces of the compression space, and a sub bearing cover coupled to the sub bearing to cover one end of the sub bearing and defining a discharge chamber with the sub bearing to communicate with the compression space so as to accommodate compressed refrigerant to be discharged. The sub bearing or the sub bearing cover may include a first barrier rib that protrudes from a surface thereof located inside of the discharge chamber. The first barrier rib may be spaced apart from a surface opposite to the surface within the discharge chamber by a predetermined distance.
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公开(公告)号：EP3974652A1
公开(公告)日：2022-03-30
申请号：EP21163597.4
申请日：2021-03-19
Applicant: LG Electronics Inc.
Inventor： CHOI, Yongkyu , PARK, Junghoon , KIM, Taekyoung
Abstract: A scroll compressor according to an implementation of the present disclosure may include an oil circulation pipe having one end inserted through a casing to be connected to an oil storage space inside the casing and another end connected to a suction passage for supplying refrigerant from outside of the casing to a compression chamber, an oil circulation valve disposed between the both ends of the oil circulation pipe to selectively open or close the oil circulation pipe, and a control unit to control an opening or closing operation of the oil circulation pipe, whereby frictional loss due to a shortage of oil can be prevented by adjusting an oil level of the oil storage space at an initial operation.
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公开(公告)号：EP3239529B1
公开(公告)日：2018-11-28
申请号：EP17166250.5
申请日：2017-04-12
Applicant: LG Electronics Inc.
Inventor： LEE, Kangwook , CHOI, Yongkyu , KIM, Cheolhwan
CPC classification number: F04C29/0071 , F04C18/0215 , F04C18/0269 , F04C23/008 , F04C29/0085 , F04C29/02 , F04C29/023 , F04C2240/30 , F04C2240/603
Abstract: A scroll compressor includes: a casing (1) configured to contain oil at a lower part thereof; a driving motor (2) provided at an inner space (1a) of the casing; a rotation shaft (5) coupled to a rotor (22) of the driving motor (2), and having an oil supply passage (5a) in order to guide the oil contained in the casing to an upper side; a frame provided below the driving motor; a fixed scroll (32) provided below the frame, and having a fixed wrap (323); and an orbiting scroll (33) disposed between the frame and the fixed scroll, having an orbiting wrap (332) to form a compression chamber by being engaged with the fixed wrap, and having a rotation shaft coupling portion (333) for coupling the rotation shaft thereto in a penetrating manner, wherein one or more oil dimples (336) are formed at a peripheral end surface positioned between an inner circumferential part and an outer circumferential part of the rotation shaft coupling portion.
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公开(公告)号：EP4067657A3
公开(公告)日：2022-10-12
申请号：EP22164307.5
申请日：2022-03-25
Applicant: LG Electronics Inc.
Inventor： CHOI, Yongkyu , LEE, Kangwook , LEE, Jaeha
Abstract: Air conditioner and scroll compressor for an air conditioner including: a refrigerant discharge tube (116) through which refrigerant discharged to an inner space (110a) of a casing (110) is discharged into a refrigeration cycle; a venturi tube (191) disposed adjacent to the refrigerant discharge tube (116) in the inner space of the casing; and a liquid refrigerant discharge tube (192) having a first end connected to the venturi tube (191) and a second end opposite to the first end and communicating with the inner space of the casing at a lower side of the refrigerant discharge tube, whereby liquid refrigerant can be suppressed from excessively stagnating in the inner space of the casing.
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公开(公告)号：EP3623631A1
公开(公告)日：2020-03-18
申请号：EP19197658.8
申请日：2019-09-17
Applicant: LG ELECTRONICS INC.
Inventor： YOO, Byungkil , PARK, Kyoungjun , LEE, Byeongchul , CHOI, Yongkyu
IPC: F04C29/00
Abstract: A scroll type compressor includes a motor including a rotor; a rotatable shaft coupled to the rotor; a frame disposed adjacent to the motor to support the rotatable shaft; a fixed scroll coupled to the frame; an orbiting scroll eccentrically coupled to the rotatable shaft, wherein the orbiting scroll is engaged with the fixed scroll to orbit relative to the fixed scroll; and a balance weight including: a coupled portion having an inner opening defined therein receiving the rotatable shaft, wherein the coupled portion is coupled to and between the rotor and the frame; and a weight portion extending from an outer periphery of the coupled portion.
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Patent Agency Ranking
公开(公告)号：EP3239529A3
公开(公告)日：2017-11-15
申请号：EP17166250.5
申请日：2017-04-12
Applicant: LG Electronics Inc.
Inventor： LEE, Kangwook , CHOI, Yongkyu , KIM, Cheolhwan
CPC classification number: F04C29/0071 , F04C18/0215 , F04C18/0269 , F04C23/008 , F04C29/0085 , F04C29/02 , F04C29/023 , F04C2240/30 , F04C2240/603
Abstract: A scroll compressor includes: a casing (1) configured to contain oil at a lower part thereof; a driving motor (2) provided at an inner space (1a) of the casing; a rotation shaft (5) coupled to a rotor (22) of the driving motor (2), and having an oil supply passage (5a) in order to guide the oil contained in the casing to an upper side; a frame provided below the driving motor; a fixed scroll (32) provided below the frame, and having a fixed wrap (323); and an orbiting scroll (33) disposed between the frame and the fixed scroll, having an orbiting wrap (332) to form a compression chamber by being engaged with the fixed wrap, and having a rotation shaft coupling portion (333) for coupling the rotation shaft thereto in a penetrating manner, wherein one or more oil dimples (336) are formed at a peripheral end surface positioned between an inner circumferential part and an outer circumferential part of the rotation shaft coupling portion.
Abstract translation: 一种涡旋式压缩机，包括：壳体（1），其构造成在其下部容纳油; 设置在壳体的内部空间（1a）处的驱动马达（2） 与驱动电动机2的转子22连接并具有供油通道5a以便将容纳在壳体中的油引导到上侧的旋转轴5; 设置在驱动马达下方的框架; 固定涡卷（32），其设置在所述框架的下方，具有固定卷（323）。 以及设置在所述框架和所述固定涡旋盘之间的动涡旋盘，所述动涡旋盘具有通过与所述固定涡卷啮合而形成压缩室的绕动涡卷，并具有旋转轴联接部分， 其中一个或多个油凹坑（336）形成在位于旋转轴联接部分的内圆周部分和外圆周部分之间的外围端表面处。
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公开(公告)号：EP3239528A3
公开(公告)日：2017-11-08
申请号：EP17166246.3
申请日：2017-04-12
Applicant: LG Electronics Inc.
Inventor： CHOI, Yongkyu , LEE, Kangwook , KIM, Cheolhwan , LEE, Byeongchul
Abstract: A scroll compressor comprises: an orbiting scroll (33) having an orbiting wrap (332), and which performs an orbiting motion; a fixed scroll (32) having a fixed wrap (323) to form a compression chamber (V) of a suction chamber, an intermediate pressure chamber and a discharge chamber, by being engaged with the orbiting wrap; and an offset portion (323b, 332b) formed on a side surface of at least one of the fixed wrap and the orbiting wrap so as to have a distance between the two wraps (δ') greater than an orbiting radius (r) defined as a distance between the two wraps in a concentric state between the orbiting scroll and the fixed scroll.
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公开(公告)号：EP3239529A2
公开(公告)日：2017-11-01
申请号：EP17166250.5
申请日：2017-04-12
Applicant: LG Electronics Inc.
Inventor： LEE, Kangwook , CHOI, Yongkyu , KIM, Cheolhwan
CPC classification number: F04C29/0071 , F04C18/0215 , F04C18/0269 , F04C23/008 , F04C29/0085 , F04C29/02 , F04C29/023 , F04C2240/30 , F04C2240/603
Abstract: A scroll compressor includes: a casing (1) configured to contain oil at a lower part thereof; a driving motor (2) provided at an inner space (1a) of the casing; a rotation shaft (5) coupled to a rotor (22) of the driving motor (2), and having an oil supply passage (5a) in order to guide the oil contained in the casing to an upper side; a frame provided below the driving motor; a fixed scroll (32) provided below the frame, and having a fixed wrap (323); and an orbiting scroll (33) disposed between the frame and the fixed scroll, having an orbiting wrap (332) to form a compression chamber by being engaged with the fixed wrap, and having a rotation shaft coupling portion (333) for coupling the rotation shaft thereto in a penetrating manner, wherein one or more oil dimples (336) are formed at a peripheral end surface positioned between an inner circumferential part and an outer circumferential part of the rotation shaft coupling portion.
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公开(公告)号：EP4488524A1
公开(公告)日：2025-01-08
申请号：EP23767190.4
申请日：2023-03-09
Applicant: LG Electronics Inc.
Inventor： LEE, Kangwook , CHOI, Yongkyu , KIM, Cheolhwan , LEE, Howon
Abstract: The present invention provides a scroll compressor comprising: a casing forming the outer appearance and having an oil storage space; an electromotive part installed inside the casing to generate power; a rotation shaft rotatably installed in the electromotive part; a compression part having an orbiting scroll installed to be capable of orbital rotation around the rotation shaft and a fixation scroll coupled to and engaged with the orbiting scroll to form a compression chamber between the orbiting scroll and the fixation scroll; and a bushing disposed between the fixation scroll and the rotation shaft and coupled to the outer circumference of the rotation shaft so as to rotate with the rotation shaft, wherein the bushing is supported by one surface provided inside the fixation scroll.
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公开(公告)号：EP4443004A1
公开(公告)日：2024-10-09
申请号：EP22901484.0
申请日：2022-07-05
Applicant: LG Electronics Inc.
Inventor： LEE, Minho , CHOI, Yongkyu , SA, Bumdong
IPC: F04C18/344 , F04C29/12
CPC classification number: F04C29/12 , F04C18/344
Abstract: In a rotary compressor according to the present embodiment, at least any one of a main bearing and a sub-bearing may have at least one axial-direction support part which extends from the outer circumferential surface of a back pressure pocket and is formed to have at a predetermined depth. The compressor can raise an oil film pressure supporting a roller in the axial direction thereof to stably support the roller including a rotation shaft in the axial direction, thereby effectively suppressing friction loss and abrasion between the roller and the main bearing facing the roller and between the roller and the sub-bearing.
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