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公开(公告)号：US10781817B2
公开(公告)日：2020-09-22
申请号：US15830135
申请日：2017-12-04
Applicant: LG ELECTRONICS INC.
Inventor： Kangwook Lee , Taekyoung Kim , Cheol Hwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided capable of supplying oil stored in an oil storage chamber upward through a rotary shaft to supply the oil to a compression device and to lubricate a bearing portion. The scroll compressor may include a casing, a drive motor, a rotary shaft, a main frame, a fixed scroll, and an orbiting scroll. A medium pressure chamber may be formed in or at a middle of the main frame, the fixed scroll, and the orbiting scroll. A pocket groove configured to guide oil discharged through the oil hole to the medium pressure chamber may be formed in an upper surface of the orbiting scroll, and a differential pressure path configured to guide the oil guided to the medium pressure chamber to the compression chamber may be provided in the fixed scroll.
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公开(公告)号：US20200088194A1
公开(公告)日：2020-03-19
申请号：US16692088
申请日：2019-11-22
Applicant: LG ELECTRONICS INC.
Inventor： Yong Kyu CHOI , Cheol Hwan Kim , Kangwook Lee , Jungsun Choi
Abstract: A scroll compressor, and more particularly, to a scroll compressor including a communication groove which may decrease discharge resistance is provided. The scroll compressor may include a fixed scroll having a fixed end plate and a fixed wrap, and an orbiting scroll configured to perform an orbiting movement about the fixed scroll and having an orbiting end plate and an orbiting wrap. A communication groove in the form of a recessed groove may be formed in an inner surface of the orbiting end plate, and a refrigerant may flow through the communication groove according to a state in which the fixed wrap overlaps the communication groove such that there is an effect in that an opening efficiency of a discharge hole is improved at an initial stage of discharge.
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公开(公告)号：US20190024664A1
公开(公告)日：2019-01-24
申请号：US15830290
申请日：2017-12-04
Applicant: LG Electronics Inc.
Inventor： Cheol Hwan Kim , Kangwook Lee , Byeongchul Lee , Yong Kyu Choi
CPC classification number: F04C29/025 , F04C18/0215 , F04C23/008 , F04C29/0057 , F04C29/023 , F04C2240/30 , F04C2240/50 , F04C2240/60
Abstract: A scroll compressor is provided which is capable of supplying oil stored in an oil storage chamber upward through a rotary shaft to lubricate a bearing portion. The scroll compressor may include a casing in which oil is stored in an oil storage chamber formed at a lower portion of the casing, a drive motor provided in an inner space of the casing, a rotary shaft coupled to the drive motor and including an oil supply path configured to guide the oil stored in the oil storage chamber and at least one oil hole that passes from the oil supply path to an outer circumferential surface of the rotary shall a main frame coupled to the rotary shaft and provided under the drive motor, a fixed scroll coupled to the rotary shaft and provided under the main frame, and an orbiting scroll provided between the main frame and the fixed scroll, into which the rotary shaft is inserted and to which the rotary shaft is eccentrically coupled, the orbiting scroll performing an orbiting movement to form a compression chamber with the fixed scroll. The oil guided upward through the oil supply path may be discharged through the at least one oil hole and supplied to the outer circumferential surface of the rotary shaft.
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公开(公告)号：US10132314B2
公开(公告)日：2018-11-20
申请号：US15817531
申请日：2017-11-20
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim
Abstract: A scroll compressor is provided that may include a first compression chamber, a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber, a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet, and a second discharge port separated from the first discharge port, communicating with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the second discharge inlet having a larger sectional area than the first discharge inlet. This configuration may prevent a discharge delay in advance in each compression chamber, and thus, preventing a compression loss.
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公开(公告)号：US20220364560A1
公开(公告)日：2022-11-17
申请号：US17874485
申请日：2022-07-27
Applicant: LG Electronics Inc.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. In a state in which the orbiting scroll and the fixed scroll are concentric with each other, when a distance between the orbiting wrap and the fixed wrap is defined as an orbiting radius, there exists an offset section having an interval larger than the orbiting radius, between a side surface of the orbiting wrap and a side surface of the fixed wrap which faces the orbiting wrap. With such a configuration, even if the fixed scroll or the orbiting scroll is transformed due to thermal expansion, interference between the fixed wrap and the orbiting wrap at a portion having a large transformation amount may be prevented. This may prevent a frictional loss or abrasion between the fixed wrap and the orbiting wrap. Further, this may restrict or minimize a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction chamber, resulting in enhanced compression efficiency.
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Patent Agency Ranking
公开(公告)号：US11434909B2
公开(公告)日：2022-09-06
申请号：US17260098
申请日：2019-07-12
Applicant: LG Electronics Inc.
Inventor： Kangwook Lee , Jungsun Choi , Cheolhwan Kim
IPC: F04C18/02
Abstract: Provided is a compressor apparatus comprising: a casing defining appearance of the apparatus; and a drive portion coupled to an inner circumferential surface of the casing and configured to rotate a rotatable shaft; a compression portion coupled to the rotatable shaft and configured to compress fluid, wherein the compression portion apparatus is characterized in that the drive portion and the compression portion are fixed to the fastening member which is detachably attached to at least one of the side face of the drive portion or the side face of the compression portion and thus, the combination of the drive portion and the compression portion is coupled to an inner circumferential surface of the casing. Further, provided is a manufacturing method of the compression portion apparatus.
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公开(公告)号：US11078908B2
公开(公告)日：2021-08-03
申请号：US16692088
申请日：2019-11-22
Applicant: LG ELECTRONICS INC.
Inventor： Yong Kyu Choi , Cheol Hwan Kim , Kangwook Lee , Jungsun Choi
Abstract: A scroll compressor, and more particularly, to a scroll compressor including a communication groove which may decrease discharge resistance is provided. The scroll compressor may include a fixed scroll having a fixed end plate and a fixed wrap, and an orbiting scroll configured to perform an orbiting movement about the fixed scroll and having an orbiting end plate and an orbiting wrap. A communication groove in the form of a recessed groove may be formed in an inner surface of the orbiting end plate, and a refrigerant may flow through the communication groove according to a state in which the fixed wrap overlaps the communication groove such that there is an effect in that an opening efficiency of a discharge hole is improved at an initial stage of discharge.
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公开(公告)号：US10816000B2
公开(公告)日：2020-10-27
申请号：US15830290
申请日：2017-12-04
Applicant: LG ELECTRONICS INC.
Inventor： Cheol Hwan Kim , Kangwook Lee , Byeongchul Lee , Yong Kyu Choi
IPC: F01C1/02 , F03C2/00 , F03C4/00 , F04C18/00 , F04C2/00 , F04C29/02 , F04C18/02 , F04C29/00 , F04C23/00
Abstract: A scroll compressor is provided which is capable of supplying oil stored in an oil storage chamber upward through a rotary shaft to lubricate a bearing portion. The scroll compressor may include a casing in which oil is stored in an oil storage chamber formed at a lower portion of the casing, a drive motor provided in an inner space of the casing, a rotary shaft coupled to the drive motor and including an oil supply path configured to guide the oil stored in the oil storage chamber and at least one oil hole that passes from the oil supply path to an outer circumferential surface of the rotary shall a main frame coupled to the rotary shaft and provided under the drive motor, a fixed scroll coupled to the rotary shaft and provided under the main frame, and an orbiting scroll provided between the main frame and the fixed scroll, into which the rotary shaft is inserted and to which the rotary shaft is eccentrically coupled, the orbiting scroll performing an orbiting movement to form a compression chamber with the fixed scroll. The oil guided upward through the oil supply path may be discharged through the at least one oil hole and supplied to the outer circumferential surface of the rotary shaft.
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公开(公告)号：US10570899B2
公开(公告)日：2020-02-25
申请号：US15491059
申请日：2017-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Kangwook Lee , Yongkyu Choi , Cheolhwan Kim
Abstract: A scroll compressor may include a casing configured to contain oil at a lower portion; a drive motor provided in the casing; a rotational shaft coupled to the drive motor, and having an oil supply passage in order to guide oil contained in the casing to an upper side; 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 to form a compression chamber with the fixed wrap, and having rotational shaft coupling portion. One or more oil dimples may be formed at a peripheral end surface of the rotational shaft coupling portion. With such a configuration, as oil may be smoothly supplied to an end surface of the orbiting wrap near the rotational shaft coupling portion, abrasion may be prevented.
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公开(公告)号：US10208752B2
公开(公告)日：2019-02-19
申请号：US15817657
申请日：2017-11-20
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim
Abstract: A scroll compressor is provided that may include a first compression chamber, a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber, a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet, and a second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the discharge outlet of at least one of the first discharge port or the second discharge port may have a larger sectional area than the discharge inlet. Accordingly, a discharge delay in each compression chamber may be prevented in advance, thereby suppressing compression loss.
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