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公开(公告)号：US11448214B2
公开(公告)日：2022-09-20
申请号：US17185392
申请日：2021-02-25
Applicant: LG Electronics Inc.
Inventor： Taekyoung Kim , Kangwook Lee , Nayoung Jeon
Abstract: A compressor includes a casing that defines an oil storage space and an opening that discharges refrigerant to an outside of the casing, a rotatable shaft disposed in the casing, a driver coupled to an inner circumferential surface of the casing and configured to rotate the rotatable shaft, a compression assembly coupled to the rotatable shaft and configured to compress and discharge the refrigerant to an inside of the casing, a muffler coupled to the compression assembly and configured to guide the refrigerant discharged from the compression assembly toward the opening, where the muffler being is configured to exchange heat with the refrigerant, and a heat radiating member that is coupled to the muffler and extends to the oil storage space and contacts the oil in the oil storage space. The muffler is configured to exchange heat with the oil through the heat radiating member.
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公开(公告)号：US11353027B2
公开(公告)日：2022-06-07
申请号：US16791511
申请日：2020-02-14
Applicant: LG Electronics Inc.
Inventor： Taekyoung Kim , Kangwook Lee , Cheolhwan Kim
Abstract: A compressor includes a casing configured to accommodate refrigerant and oil, a discharger disposed at a side of the casing and configured to discharge the refrigerant, a driver including a stator and a rotor, a rotation shaft that is coupled to the rotor and that extends in a direction away from the discharger, a compressing assembly that is coupled to the rotation shaft, that is configured to be lubricated with the oil, and that is configured to compress the refrigerant and discharge the compressed refrigerant in the direction away from the discharger, a muffler coupled to the compressing assembly and configured to guide the refrigerant to the discharger, and a bypassing portion disposed outside the casing and configured to transfer the refrigerant or the oil from the muffler to the discharger.
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公开(公告)号：US11306719B2
公开(公告)日：2022-04-19
申请号：US16444369
申请日：2019-06-18
Applicant: LG Electronics Inc.
Inventor： Nayoung Jeon , Taekyoung Kim , Cheolhwan Kim
Abstract: A compressor is disclosed. The compressor includes a case having an oil reservoir space for storing oil in a lower portion of the case and a refrigerant discharge pipe for discharging a compressed refrigerant in an upper portion of the case, a drive motor provided in the case, a rotary shaft rotatably coupled to the drive motor, a compression unit coupled to the rotary shaft to compress the refrigerant, and a discharge cover hermetically coupled to a lower end of the compression unit and configured to guide an oil-containing refrigerant compressed by the compression unit toward the refrigerant discharge pipe, wherein a guide is provided between the compression unit and the discharge cover and configured to guide an oil-containing refrigerant discharged from the compression unit toward the refrigerant discharge pipe.
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公开(公告)号：US11209001B2
公开(公告)日：2021-12-28
申请号：US16693450
申请日：2019-11-25
Applicant: LG ELECTRONICS INC.
Inventor： Cheolhwan Kim , Yongkyu Choi , Taekyoung Kim
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. A wrap thickness of the fixed wrap may be greater than a wrap thickness of the orbiting wrap within a range which forms the suction chamber. With such a configuration, even if the fixed scroll or the orbiting scroll is thermally-expanded, a transformation of the fixed wrap at a suction side may be prevented. This may prevent a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction side, thereby enhancing compression efficiency.
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公开(公告)号：US11181109B2
公开(公告)日：2021-11-23
申请号：US16414110
申请日：2019-05-16
Applicant: LG Electronics Inc.
Inventor： Nayoung Jeon , Taekyoung Kim , Cheolhwan Kim
Abstract: A scroll compressor includes a refrigerant discharge flow passage and an oil recovery flow passage that are separated from each other. The scroll compressor further includes a flow passage separation unit configured to separate an intermediate space between a drive portion and a compression portion into an inner space communicating with the refrigerant flow passage and an outer space communicating with the oil flow passage to separate the refrigerant discharge path from the oil recovery path.
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Patent Agency Ranking
公开(公告)号：US11408426B2
公开(公告)日：2022-08-09
申请号：US16788966
申请日：2020-02-12
Applicant: LG Electronics Inc.
Inventor： Nayoung Jeon , Taekyoung Kim , Cheolhwan Kim
Abstract: A compressor include a casing, a drive unit including a stator and a rotor accommodated in the stator, a rotation shaft coupled to the rotor and configured to be rotated by the rotor, a compression unit that is coupled to the rotation shaft, that is lubricated with the oil, and that is configured to compress and discharge the refrigerant, and an oil-separator that is disposed between the discharge part and the drive unit and that is configured to separate the oil from the refrigerant and guide the refrigerant to the discharge part. The oil-separator includes a centrifugal separator configured to rotate together with the rotation shaft and configured to generate a centrifugal force to separate the oil from the refrigerant, and a coupler coupled to the rotor or the rotation shaft and configured to rotate the centrifugal separator based on rotation of the rotating shaft.
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公开(公告)号：US11293442B2
公开(公告)日：2022-04-05
申请号：US16378653
申请日：2019-04-09
Applicant: LG ELECTRONICS INC.
Inventor： Nayoung Jeon , Taekyoung Kim , Cheolhwan Kim
Abstract: A scroll compressor may include a first scroll and a second scroll orbiting relative to the first scroll to form compression chambers, a discharge port provided in the first scroll to discharge refrigerant compressed in the compression chamber, a discharge passage formed through the first discharged through the discharge to an upper side of the frame, and a discharge cover coupled to the first scroll and having a space to accommodate end portions of the discharge port and the discharge passage to guide the refrigerant discharged through the discharge port to the discharge passage. A volume of a discharge space defined in the space by the first scroll may be 4.5 or more, obtained by dividing a volume of the discharge space by a total volume of an initial compression chamber among the compression chambers.
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公开(公告)号：US11187230B2
公开(公告)日：2021-11-30
申请号：US15949890
申请日：2018-04-10
Applicant: LG ELECTRONICS INC.
Inventor： Kangwook Lee , Taekyoung Kim , Byeongchul Lee , Cheolhwan Kim
Abstract: A scroll compressor having a casing, a drive motor which is held in place within the casing and has an internal flow passage and an external flow passage to pass through, a rotation shaft which is combined with the drive motor for rotation, a frame that is provided under the drive motor and through which the rotation shaft passes for support, a first scroll which is provided under the frame and on whose one flank surface a first wrap is formed, a second scroll which is provided between the frame and the first scroll, on which a second wrap that is engaged with the first wrap is formed, with which the rotation shaft is eccentrically combined and which forms a compression chamber, and a flow passage separation unit which separates a space between the drive motor and the frame into an internal space and an external space is provided.
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公开(公告)号：US10895260B2
公开(公告)日：2021-01-19
申请号：US15975806
申请日：2018-05-10
Applicant: LG ELECTRONICS INC.
Inventor： Cheolhwan Kim , Kangwook Lee , Taekyoung Kim , Byeongchul Lee
Abstract: A scroll compressor includes a casing, and an internal sealed space in the casing; a drive motor configured with a stator and a rotor which rotates within the stator, and that has an internal flow passage and an external flow passage; a rotation shaft connected to the rotor; a compression unit that includes a first scroll, and a second scroll which is engaged with the first scroll to form a compression chamber, with which the rotation shaft is eccentrically combined; a discharge pipe that communicates with an upper space of the internal space; an oil separation member disposed in the upper space; and a guidance member that is provided between an upper end of the drive motor and a lower end of the discharge pipe and guides the refrigerant with which the oil is mixed, to the oil separation member.
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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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