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公开(公告)号：US11346220B2
公开(公告)日：2022-05-31
申请号：US16790234
申请日：2020-02-13
Applicant: LG Electronics Inc.
Inventor： Sangbaek Park , Jungsun Choi , Cheolhwan Kim
Abstract: A compressor includes a rotation shaft, a drive unit, and a compression unit. The compression unit includes a fixed scroll, an orbiting scroll, a main frame that is disposed on the fixed scroll, and an Oldham's ring coupled to the orbiting scroll and the main frame and configured to restrict rotation of the orbiting scroll. The Oldham's ring includes a ring body disposed between the orbiting scroll and the main frame, keys that protrude from the ring body that are each coupled to the orbiting scroll or the main frame, and caps that are inserted into the main frame and that each have (i) a coupling hole that receives a key among the keys and (ii) a machined portion that faces the coupling hole and that is spaced apart from at least a portion of an outer surface of the key.
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公开(公告)号：US11927191B2
公开(公告)日：2024-03-12
申请号：US17566000
申请日：2021-12-30
Applicant: LG Electronics Inc.
Inventor： Nayoung Jeon , Sangbaek Park , Cheolhwan Kim
CPC classification number: F04C29/12 , F04C18/0215 , F04C23/008 , F04C29/026 , F04C2240/30 , F04C2240/40
Abstract: A scroll compressor includes a flow path guide disposed between a motor unit and a compression unit to separate a refrigerant flow path and an oil flow path. A guide discharge hole communicating with a discharge passage of the compression unit is formed axially through the flow path guide and a guide passage communicating with the guide discharge hole is annularly defined, such that a discharge guide protrusion surrounding the guide discharge hole extends toward the motor unit. Accordingly, inner and outer spaces of the flow path guide can communicate with each other while the refrigerant flow path and the oil flow path are separated, which results in securing a space of an oil recovery passage to allow quick oil recovery and simplifying a structure of the flow path guide to reduce manufacturing costs.
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公开(公告)号：US11560795B2
公开(公告)日：2023-01-24
申请号：US16817041
申请日：2020-03-12
Applicant: LG Electronics Inc.
Inventor： Kyungho Lee , Sangbaek Park , Cheolhwan Kim
Abstract: Disclosed is a scroll type compressor having an Oldham's ring having an asymmetrical structure with respect to a long or minor axis thereof.
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公开(公告)号：US12215684B2
公开(公告)日：2025-02-04
申请号：US18231878
申请日：2023-08-09
Applicant: LG ELECTRONICS INC.
Inventor： Howon Lee , Cheolhwan Kim , Sangbaek Park
Abstract: A scroll compressor may include an oil supply passage provided independent of an intermediate pressure chamber to allow an oil passage of a rotational shaft to communicate with a compression chamber, such that some of the oil suctioned through the oil passage is guided to the compression chamber. As an inner space of a casing communicates directly with the compression chamber without passing through the intermediate pressure chamber, even in a state in which an operating pressure ratio is, for example, 1.3 or less, namely, even if a differential pressure between the inner space and the compression chamber is not large, oil stored in the inner space may be smoothly supplied to the compression chamber.
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Patent Agency Ranking
公开(公告)号：US11927186B2
公开(公告)日：2024-03-12
申请号：US18150002
申请日：2023-01-04
Applicant: LG Electronics Inc.
Inventor： Yoonsung Choi , Sangbaek Park , Cheolhwan Kim
CPC classification number: F04C15/06 , F04C2/025 , F04C18/0269 , F04C18/0292 , F04C2210/26 , F04C2250/101 , F04C2250/20 , F04C2250/30
Abstract: Provided is a scroll compressor. The scroll compressor may be provided with at least one refrigerant accommodating groove recessed to a preset depth in at least one from a side surface of a fixed wrap constituting a compression chamber and a side surface of an orbiting wrap. Thus, a volume of the compression chamber in a discharge area may be increased in correspondence with a volume of the at least one refrigerant accommodating groove, and a space into which liquid refrigerant, etc. may escape may be ensured to resolve excessive compression in the compression chamber. Then, a stress exerted on the fixed wrap is reduced, and a damage to the fixed wrap due to pressure in the compression chamber may be suppressed.
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公开(公告)号：US11598337B2
公开(公告)日：2023-03-07
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：US11353026B2
公开(公告)日：2022-06-07
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：US11920595B2
公开(公告)日：2024-03-05
申请号：US18162215
申请日：2023-01-31
Applicant: LG Electronics Inc.
Inventor： Sangbaek Park , Nayoung Jeon , Cheolhwan Kim
CPC classification number: F04C29/026 , F04C18/0215 , F04C23/008
Abstract: The present disclosure relates to is a compressor. The compressor may be provided with a communication hole between an inlet and an outlet of a refrigerant discharge pipe coupled through an upper surface of a casing, the communication hole penetrating between an outer circumferential surface and an inner circumferential surface of the refrigerant discharge pipe. Thus, during oil sealing through the refrigerant discharge pipe, a flux path area of a driving motor may be ensured, and a number of winding wires and/or a coil diameter of a stator coil may be ensured. Thus, efficiency of the driving motor may be maintained and backflow or overflow of oil through the refrigerant discharge pipe may be suppressed. In addition, during operation of the compressor, oil may be suppressed from being excessively leaked through the refrigerant discharge pipe without having to include a separate oil separator inside or inside the casing.
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公开(公告)号：US11788531B2
公开(公告)日：2023-10-17
申请号：US18149994
申请日：2023-01-04
Applicant: LG Electronics Inc.
Inventor： Sangbaek Park , Yoonsung Choi , Cheolhwan Kim
CPC classification number: F04C29/124 , F04C18/0215
Abstract: Provided is a scroll compressor. The scroll compressor includes a reinforcing unit between an outlet end of a suction port and an outer circumferential surface of the fixed wrap facing the outlet end of the suction port. The reinforcing unit may overlap a part of the outlet end of the suction port in a radial direction when being projected in an axial direction. Accordingly, rigidity of a suction side of the fixed wrap is increased, and thus, deformation of the suction side of the fixed wrap during operation of the scroll compressor may be suppressed to increase reliability of the scroll compressor.
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