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公开(公告)号：USRE48826E1
公开(公告)日：2021-11-23
申请号：US16850303
申请日：2020-04-16
Applicant: LG ELECTRONICS INC.
Inventor： Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
Abstract: A compressor is provided that may include a passage separator provided between an electric motor drive and a compression device to separate a refrigerant passage from an oil passage. The passage separator may include a first partition wall and a second partition wall. The first partition wall may be disposed between an inner circumferential surface of a casing and a discharge hole of the compression device, and the second partition wall may be disposed between the discharge hole and a balance weight. Accordingly, the refrigerant passage may be separated from the oil passage between the compression device and electric motor drive, thereby efficiently recovering oil to an oil storage space.
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公开(公告)号：US10590931B2
公开(公告)日：2020-03-17
申请号：US16016303
申请日：2018-06-22
Applicant: LG Electronics Inc.
Inventor： Hansaem Park , Soojin Kang , Kangwook Lee , Hojong Jeong , Cheolhwan Kim
Abstract: A scroll compressor according to the present disclosure and an air conditioner having the scroll compressor may include a drive motor provided in an inner space of a casing; a rotation shaft coupled to the drive motor; a frame provided on a lower side of the drive motor; a first scroll provided on a lower side of the frame, one side of which is formed with a first wrap; a second scroll in which a second wrap engaged with the first wrap is formed, and the rotation shaft is eccentrically coupled to the second wrap to overlap therewith in a radial direction, a compression chamber is formed between the first scroll and the second scroll while being orbitally moved with respect to the first scroll, and the compression chamber is connected to an evaporator outlet side of the cooling cycle; and an injection unit one end of which is branched from a refrigerant pipe between the condenser and the evaporator, and the other end of which is connected to the compression chamber through the first scroll.
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公开(公告)号：US11920590B2
公开(公告)日：2024-03-05
申请号：US17874485
申请日：2022-07-27
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
CPC classification number: F04C18/0269 , F04C18/0215 , F04C28/28 , F04C29/0085 , F04C29/12 , F04C2240/30 , F04C2240/60
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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公开(公告)号：US11686307B2
公开(公告)日：2023-06-27
申请号：US17235289
申请日：2021-04-20
Applicant: LG Electronics Inc.
Inventor： Kyungho Lee , Minho Lee , Kangwook Lee
CPC classification number: F04C18/0253 , F04C18/0215 , F04C18/0261 , F04C18/0292 , F04C29/02 , F04C29/023 , F04C29/12 , F04C23/008 , F04C2210/26 , F04C2240/30 , F04C2240/603 , F04C2240/809 , F04C2250/102 , F05B2260/98
Abstract: A scroll type compressor includes an orbiting scroll including an orbiting wrap and a fixed scroll including a fixed wrap, in which first and second oil channels are respectively configured to supply oil to inner and outer oil channels formed by the orbiting wrap and the fixed wrap. Thus, the scroll type compressor has an oil channel structure that allows oil feeding into to the scrolls.
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公开(公告)号：US11603840B2
公开(公告)日：2023-03-14
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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Patent Agency Ranking
公开(公告)号：US20220316474A1
公开(公告)日：2022-10-06
申请号：US17707382
申请日：2022-03-29
Applicant: LG Electronics Inc.
Inventor： Yongkyu Choi , Kangwook Lee , Jaeha Lee
IPC: F04C18/02
Abstract: A scroll compressor of an air conditioner includes a refrigerant discharge tube through which refrigerant discharged to an inner space of a casing is discharged into a refrigeration cycle, a venturi tube disposed adjacent to the refrigerant discharge tube in the inner space of the casing, and a liquid refrigerant discharge tube having a first end connected to the venturi tube and a second end opposite to the first end and communicating with the inner space of the casing at a lower side of the refrigerant discharge tube, where liquid refrigerant can be suppressed from excessively stagnating in the inner space of the casing.
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公开(公告)号：US11408423B2
公开(公告)日：2022-08-09
申请号：US16655587
申请日：2019-10-17
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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公开(公告)号：US11384771B2
公开(公告)日：2022-07-12
申请号：US16668815
申请日：2019-10-30
Applicant: LG Electronics Inc.
Inventor： Kangwook Lee , Nayoung Jeon , Cheolhwan Kim
IPC: F04D29/12 , F04D29/10 , F04D29/063 , F04D5/00 , F04D29/049 , F16J15/34 , F04D29/62 , F04D31/00 , F04D29/046 , F04D29/08
Abstract: There is disclosed a compressor comprising a case comprising a discharging part provided one side and configured to discharge a refrigerant, the case defining a predetermined space for storing oil; a drive part comprising a rotor coupled to an inner circumferential surface of the case and having coils wound there around and configured to generate a rotation magnetic field, and a rotor mounted in the rotor and configured to be rotatable by the rotation magnetic field; a shaft extending in a state of being coupled to the rotor; a compression part lubricated by the oil in a state of being coupled to the shaft and configured to compress and discharge the refrigerant; and a sealing part extending from the stator towards the compression part and configured to induce the winding of the coil.
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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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