公开(公告)号：US12281653B2

公开(公告)日：2025-04-22

申请号：US18691383

申请日：2022-07-29

Applicant: LG ELECTRONICS INC.

Inventor： Byungkil Yoo ,  Jungsun Choi ,  Seheon Choi

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

Abstract: A scroll compressor includes a plurality of fixing protrusions that are provided spaced apart from each other in a key that constitutes an Oldham ring, and an orbiting scroll, to which the key is coupled, or a ring body of the Oldham ring may be provided with a plurality of fixing grooves which are spaced part from each other and into which the plurality of fixing protrusions are respectively inserted and fixed.

公开(公告)号：US11692547B2

公开(公告)日：2023-07-04

申请号：US17696236

申请日：2022-03-16

Applicant: LG Electronics Inc.

Inventor： Junghoon Park ,  Sungyong Ahn ,  Taekyoung Kim ,  Seheon Choi

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

CPC classification number: F04C18/0215 ,  F04C23/008 ,  F04C29/02 ,  F04C29/12 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/50 ,  F04C2240/60

Abstract: A hermetic compressor according to the present disclosure may include an oil guide disposed on a rotating shaft between a driving motor and a main frame, the oil guide may include an oil block surrounding a main bearing surface between the main frame and the rotating shaft, and one end of the oil block may radially overlap a shaft support protrusion of the main frame. This can suppress oil returned after lubricating a compression unit from being scattered, thereby reducing a leakage of the oil to outside of a casing through a refrigerant discharge pipe.

公开(公告)号：US09605675B2

公开(公告)日：2017-03-28

申请号：US14299077

申请日：2014-06-09

Applicant: LG ELECTRONICS INC.

Inventor： Inwon Park ,  Seheon Choi ,  Byeongchul Lee ,  Byungkil Yoo

IPC: F04C18/04 ,  F04C18/02 ,  F01C1/02

CPC classification number: F04C18/04 ,  F01C1/0246 ,  F04C18/0215 ,  F04C18/0269 ,  F04C18/0284 ,  F04C2250/20 ,  F04C2250/301

Abstract: A scroll compressor is provided which is configured such that an arcuate section may be formed from a suction end of a wrap to a first point to increase a suction volume, and a logarithmic spiral section in which a wrap thickness increases may be formed from a second point to a discharge end of the wrap. This may increase a volume ratio of the compressor so as to increase a capacity of the compressor and prevent damage to the wrap due to a high compression ratio operation, thereby enhancing reliability of the compressor.

公开(公告)号：US09291164B2

公开(公告)日：2016-03-22

申请号：US14293028

申请日：2014-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Sungyong Ahn ,  Seheon Choi ,  Byeongchul Lee ,  Byoungchan Kim ,  Junghoon Park

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C18/02 ,  F04C23/00 ,  F04C29/00

CPC classification number: F04C18/0215 ,  F04C23/008 ,  F04C29/0057 ,  F04C29/0071 ,  F04C2230/91 ,  F04C2240/56 ,  F05C2225/12 ,  F05C2251/14

Abstract: A scroll compressor is provided in which a boss of an orbiting scroll is inserted into and coupled to a boss coupling recess of a crank shaft, so that friction loss of a bearing portion of the crank shaft may be reduced, compression efficiency and reliability of the compressor may be enhanced, and noise and material costs may be reduced. A bush bearing may be formed as a coating on the boss of the orbiting scroll, so that a thickness of the bearing portion of the crank shaft may be reduced. Since an outer circumferential surface of the bearing portion is in contact with an inner circumferential surface of the boss coupling recess, damage to the bearing portion may be prevented.

Abstract translation: 提供一种涡旋压缩机，其中绕动涡旋盘的凸台插入并联接到曲轴的凸台联接凹槽，使得曲轴的轴承部分的摩擦损失可能降低，压缩效率和可靠性 可以增强压缩机，并且可以降低噪声和材料成本。 衬套轴承可以形成为绕动涡旋盘的凸台上的涂层，使得可以减小曲柄轴承部分的厚度。 由于轴承部的外周面与凸台接合凹部的内周面接触，所以可以防止对轴承部的损伤。

公开(公告)号：US12025127B2

公开(公告)日：2024-07-02

申请号：US17991228

申请日：2022-11-21

Applicant: LG Electronics Inc.

Inventor： Jungsun Choi ,  Byungkil Yoo ,  Seheon Choi

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

CPC classification number: F04C18/0215 ,  F01C17/066 ,  F04C18/0253 ,  F04C29/0042 ,  F04C29/028

Abstract: A scroll compressor includes a casing, a main frame, a rotating shaft, an orbiting scroll, a fixed scroll configured to engage the orbiting scroll to form a compression chamber, and an Oldham ring slidably coupled to the orbiting scroll to prevent rotation of the orbiting scroll. The Oldham ring includes: a ring body provided between the main frame and the orbiting scroll to be supported in an axial direction of the rotating shaft, and a key portion extending in the axial direction from the ring body and slidably inserted into a key accommodating portion provided in the orbiting scroll, the main frame, or the fixed scroll. The ring body or the key portion includes an oil supply passage for guiding oil accumulated in a member on which the ring body is supported to between the key portion and the key accommodating portion.

公开(公告)号：US11480179B2

公开(公告)日：2022-10-25

申请号：US16591120

申请日：2019-10-02

Applicant: LG Electronics Inc.

Inventor： Jinho Kim ,  Sungyong Ahn ,  Jaeha Lee ,  Seheon Choi ,  Yoonsung Choi

IPC: F01C17/06 ,  F04C23/00 ,  F04C18/02

Abstract: A fluid compressor includes a case, a fixed scroll, an orbiting scroll, a motor, and at least one anti-rotation unit. The case is configured to form an external appearance thereof. The fixed scroll is fixed in the case. The orbiting scroll is engaged with the fixed scroll at one side of the fixed scroll, and performs partitioning of a compression chamber. The motor provides the orbiting scroll with drive power. The anti-rotation unit is coupled to a side surface of the orbiting scroll so as to prevent rotation of the orbiting scroll.

公开(公告)号：US11460041B2

公开(公告)日：2022-10-04

申请号：US16828688

申请日：2020-03-24

Applicant: LG Electronics Inc.

Inventor： Hyojo Bae ,  Junchul Oh ,  Seheon Choi

IPC: F04D29/62 ,  F04D29/42 ,  F04D25/06 ,  F04D17/12 ,  F04D29/58

Abstract: Provided is a turbo compressor. The turbo compressor includes a driving shaft, a first impeller, a second impeller, a first shroud, a second shroud, a first-stage outflow passage, and a second-stage outflow passage. Also, the turbo compressor includes a gap adjustment passage that is branched from at least one of the first-stage outflow passage or the second-stage outflow passage to extend to the first shroud.

公开(公告)号：US11293434B2

公开(公告)日：2022-04-05

申请号：US16635956

申请日：2018-07-30

Applicant: LG Electronics Inc.

Inventor： Jaeha Lee ,  Jinho Kim ,  Sungyong Ahn ,  Byeongchul Lee ,  Seheon Choi

IPC: F16C17/02 ,  F16C33/20 ,  F04C18/02 ,  F04C29/00

Abstract: A bush bearing having an outer lubricating layer, a manufacturing method therefor and a scroll compressor having same applied thereto, according to the present disclosure, includes a bush bearing comprising: a base member which has a cylindrical shape having no separated surfaces along the circumferential direction; and a lubricating member which is formed from a material having a lower rigidity and more excellent lubricity than the base member, and has a cylindrical shape having no separated surfaces along the circumferential direction by being integrally provided to the outer circumferential surface of the base member, wherein the cylindricity of the outer circumferential surface of the lubricating member satisfies a value that is within 0.6% of the average thickness of the lubricating member, and the lubricating member has carbon fiber contained in a resin base, wherein the carbon fiber has cut surfaces exposed on both ends of the lubricating member.

公开(公告)号：US09689388B2

公开(公告)日：2017-06-27

申请号：US14782393

申请日：2014-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Yoonsung Choi ,  Byungkil Yoo ,  Seheon Choi ,  Jinho Kim ,  Chuljig Bae ,  Byeongchul Lee

IPC: F01C21/10 ,  F04C23/00 ,  F04C18/02 ,  F04C18/356 ,  F04C29/00 ,  F04C29/12

CPC classification number: F04C23/005 ,  F04C18/0215 ,  F04C18/0253 ,  F04C18/3564 ,  F04C23/008 ,  F04C29/0057 ,  F04C29/12 ,  F04C2240/56 ,  F05C2225/00

Abstract: A compressor according to the present disclosure may include a container; a drive motor provided in the container; a crankshaft coupled to a rotor of the drive motor; a first scroll coupled to the crankshaft to receive a rotational force of the drive motor to perform an orbiting movement; a second scroll coupled to the first scroll to form a first compression unit and a second compression unit along with the first scroll; and a vane provided in the first scroll or second scroll to be brought into contact with the other side scroll to form the second compression unit, wherein the first compression unit is carried out in a scroll compression mode and the second compression unit is carried out in a rotary compression mode.

公开(公告)号：USRE46091E1

公开(公告)日：2016-08-02

申请号：US14711163

申请日：2015-05-13

Applicant: LG ELECTRONICS INC.

Inventor： Inho Won ,  Seheon Choi ,  Byeongchul Lee

IPC: F25B31/00 ,  F25B43/02 ,  F04B39/02 ,  F04C29/02 ,  F04C23/00 ,  F04C18/02

CPC classification number: F04B39/0207 ,  F04B39/023 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/02 ,  F04C2240/81 ,  F04C2270/24 ,  F04C2270/86

Abstract: An oil level detecting device for a compressor and an air conditioning system having the same are provided. The oil level detecting device may be provided in a compressor including a compression device that introduces and compresses a working fluid, a driving device mechanically connected to the compression device that operates the compression device, and a case that accommodates the compression device and the driving device thereinside and having an oil storage space that stores oil at a lower portion thereof. The oil level detecting device may include a detector including a supporting portion configured to be attached to the case and a detecting portion that protrudes inside the case. At least one property of the detecting portion may vary according to an oil level inside the case. The oil level detecting device may also include a signal processor including an electronic element having at least one reference property. The signal processor may compare the at least one property of the detecting portion with the at least one reference property of the electronic element and outputs a control signal according to the result.

Abstract translation: 提供了一种用于压缩机的油位检测装置和具有该油位检测装置的空调系统。 油位检测装置可以设置在压缩机中，该压缩机包括引入和压缩工作流体的压缩装置，机械连接到操作压缩装置的压缩装置的驱动装置，以及容纳压缩装置和驱动装置的壳体 并且具有在其下部存储油的储油空间。 油位检测装置可以包括检测器，其包括构造成附接到壳体的支撑部分和在壳体内突出的检测部分。 检测部分的至少一个特性可以根据壳体内的油位而变化。 油位检测装置还可以包括信号处理器，其包括具有至少一个参考特性的电子元件。 信号处理器可以将检测部分的至少一个属性与电子元件的至少一个参考属性进行比较，并根据结果输出控制信号。