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公开(公告)号：US20210010473A1
公开(公告)日：2021-01-14
申请号：US16926042
申请日：2020-07-10
Applicant: LG Electronics Inc.
Inventor： Jungsun CHOI , Cheolhwan KIM , Sangbaek PARK
Abstract: A compressor, more particularly, a scroll compressor provides structures that may enhance centrifugal stiffness at a contact point between a fixed scroll and an orbiting scroll. The compressor may include an orbiting scroll having an orbiting scroll wrap wound around a radial-direction inner area from a radial-direction outer area; and a fixed scroll having a fixed scroll wrap wound around the radial-direction inner area from the radial-direction outer area. A surfacing part may be configured to narrow a distance between the orbiting scroll wrap and the fixed scroll wrap may be formed in a predetermined section of the orbiting scroll or fixed scroll wrap.
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公开(公告)号：US20220260074A1
公开(公告)日：2022-08-18
申请号：US17552939
申请日：2021-12-16
Applicant: LG Electronics Inc.
Inventor： Jungsun CHOI , Kyungho LEE , Minho LEE
Abstract: A scroll compressor includes a first oil supply passage communicating with a first compression chamber formed between an inner circumferential surface of a fixed wrap and an outer circumferential surface of an orbiting wrap, and a second oil supply passage separated from the first oil supply passage and communicating with a second compression chamber formed between an outer circumferential surface of the fixed wrap and an inner circumferential surface of the orbiting wrap, wherein the first oil supply passage includes an oil supply guide portion provided in a thrust surface of the fixed scroll in contact with the orbiting scroll to define a part of the first oil supply passage, whereby communication between the first and second compression chambers can be prevented, thereby suppressing leakage between the compression chambers, stabilizing behavior of the orbiting scroll, and facilitating formation of the orbiting scroll.
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公开(公告)号：US20200263691A1
公开(公告)日：2020-08-20
申请号：US16790247
申请日：2020-02-13
Applicant: LG Electronics Inc.
Inventor： Jungsun CHOI , Sangbaek PARK , Cheolhwan KIM
Abstract: Disclosed is a compressor including a compressing assembly having a decompressing structure to control an amount of oil. The decompressing structure is oriented in parallel with a length direction of the rotation shaft or in a direction toward a discharger from which the refrigerant is discharged.
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公开(公告)号：US20220034557A1
公开(公告)日：2022-02-03
申请号：US17344469
申请日：2021-06-10
Applicant: LG Electronics Inc.
Inventor： Jungsun CHOI , Kangwook LEE , Kyungho LEE
Abstract: A scroll compressor includes a refrigerant suction pipe coupled to a discharge cover or a fixed scroll through a casing in a radial direction, a suction passage communicating the refrigerant suction pipe with a compression chamber, and a suction passage opening and closing valve disposed inside the suction passage to be slidable in an axial direction so as to selectively open or close the suction passage. Accordingly, when the compressor is stopped, oil or refrigerant in the casing can be restricted quickly so as not to flow back to the refrigerant suction pipe through a compression unit.
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公开(公告)号：US20200340477A1
公开(公告)日：2020-10-29
申请号：US16914726
申请日：2020-06-29
Applicant: LG ELECTRONICS INC.
Inventor： Sang Baek PARK , Jungsun CHOI , Cheol Hwan KIM , Byeongchul LEE
Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.
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Patent Agency Ranking
公开(公告)号：US20180306187A1
公开(公告)日：2018-10-25
申请号：US15817515
申请日：2017-11-20
Applicant: LG ELECTRONICS INC.
Inventor： Jungsun CHOI , Yongkyu CHOI , Cheolhwan KIM
CPC classification number: F04C18/0215 , F04C18/0246 , F04C18/0276 , F04C18/0284 , F04C23/008 , F04C29/0057 , F04C29/12 , F04C2240/30 , F04C2240/60
Abstract: A scroll compressor is provided that may include a first wrap, and a second wrap engaged with the first wrap and coupled to be eccentric to a center of rotation of a rotational shaft to form a compression chamber, moving toward a central portion, together with the first wrap while performing an orbiting motion with respect to the first wrap. A height of at least one of the first wrap or the second wrap may be formed to have at least two inclination machining amounts which decrease toward the central portion, and the inclination machining amount of the central portion may be larger than the inclination machining amount of an edge portion or a wrap rigidity at a specific section, thereby preventing frictional loss or abrasion of the wrap and breakage of the wrap.
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公开(公告)号：US20170306953A1
公开(公告)日：2017-10-26
申请号：US15491009
申请日：2017-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Jungsun CHOI , Howon LEE , Cheolhwan KIM
Abstract: A scroll compressor is provided that may include a casing; a drive motor provided at an inner space of the casing; a rotational shaft coupled to a rotor of the drive motor, and rotated together with the rotor; a frame provided below the drive motor; a fixed scroll provided below the frame, and having a fixed wrap; and an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap se as to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the fixed wrap, and having a rotational shaft coupling portion that couples the rotational shaft thereto in a penetrating manner. In a state in which a center of the fixed scroll and a center of the orbiting scroll are substantially the same, an interval between the fixed wrap and the orbiting wrap gradually increases towards the suction chamber from the discharge chamber.
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公开(公告)号：US20230175509A1
公开(公告)日：2023-06-08
申请号：US17920262
申请日：2021-04-13
Applicant: LG Electronics Inc.
Inventor： Minho LEE , Kangwook LEE , Jungsun CHOI
CPC classification number: F04C29/023 , F04C18/0215
Abstract: The present invention relates to a scroll compressor having a regulating part, provided in a modular manner outside of a compression part, for determining whether to selectively supply oil from one oil-feeding path to a plurality of regions inside the compression part that compresses a refrigerant.
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公开(公告)号：US20230143495A1
公开(公告)日：2023-05-11
申请号：US17920639
申请日：2021-03-22
Applicant: LG Electronics Inc.
Inventor： Taekyoung KIM , Kangwook LEE , Jungsun CHOI
CPC classification number: F04C18/0215 , F04C29/021 , F04C29/124
Abstract: A compressor according to embodiments of the present invention may comprise: a first fluid channel provided to communicate with an oil supply fluid channel so as to allow oil to flow therethrough; a second fluid channel provided to extend from the first fluid channel so as to allow the oil to flow to the outside of a case; a third fluid channel extending from the second fluid channel and provided outside the case; and a main fluid channel extending from the third fluid channel and provided through a fixed scroll or a main frame. Accordingly, the oil is supplied to a compression part by passing along the outside of the case, so that oil can be effectively supplied when a high-pressure operation is performed. Moreover, the present invention may not have a facility such as a pressure reduction pin, so that oil can be effectively supplied when a low-pressure operation is performed.
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公开(公告)号：US20220056910A1
公开(公告)日：2022-02-24
申请号：US17350516
申请日：2021-06-17
Applicant: LG Electronics Inc.
Inventor： Kyungho LEE , Jungsun CHOI , Kangwook LEE
Abstract: A scroll compressor according to the present disclosure includes a fixed scroll, an orbiting scroll forming first and compression chambers with the fixed scroll, first and second compression chamber oil supply holes formed through the orbiting scroll to communicate with the first compression chamber and the second compression chamber, respectively, wherein when a section in which the first compression chamber oil supply hole is opened toward the first compression chamber is a first oil supply section and a section in which the second compression chamber oil supply hole is opened toward the second compression chamber, a non-overlap section between the first oil supply section and the second oil supply section may be longer than an overlap section between the first oil supply section and the second oil supply section, so as to prevent communication between the first and second compression chambers, thereby suppressing leakage between the compression chambers.
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