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公开(公告)号：US20230304706A1
公开(公告)日：2023-09-28
申请号：US18013230
申请日：2021-07-01
Applicant: LG ELECTRONICS INC.
Inventor： Changgook MOON , Junchul OH , Hyojo BAE , Seheon CHOI , Kyungmin KIM , Jinhyeok MUN , Byeongchul LEE
IPC: F25B31/00 , F04D29/42 , F04D25/06 , F04D29/056 , F04D29/053 , F04D17/10 , F25B31/02
CPC classification number: F25B31/006 , F04D17/10 , F04D25/06 , F04D29/053 , F04D29/056 , F04D29/4206 , F25B31/026
Abstract: A turbo compressor and a refrigeration cycle device having a turbo compressor are provided. The turbo compressor includes a housing having a motor chamber; a drive motor having a stator and a rotor in the motor chamber of the housing; a first compression portion and a second compression portion, respectively, provided on opposite ends of a rotary shaft; a connecting passage that connects an exit of the first compression portion and an entrance of the second compression portion; an inlet passage that penetrates a first side of the housing to communicate with an inside of the motor chamber and guide a refrigeration fluid to the motor chamber; and an outlet passage that penetrates a second side of the housing to communicate with the inside of the motor chamber and guide the refrigeration fluid in the motor chamber out of the housing. Thus, a gas foil bearing provided in the motor chamber may be quickly actuated by supplying the refrigeration fluid to the motor chamber, and at a same time, heat generated from the motor chamber may be quickly dissipated even in a highspeed operation, thereby improving efficiency of the turbo compressor and a refrigeration cycle device having a turbo compressor.
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公开(公告)号：US20200217316A1
公开(公告)日：2020-07-09
申请号：US16733384
申请日：2020-01-03
Applicant: LG ELECTRONICS INC.
Inventor： Jongtae HER , Dongwoo MIN , Gyeongbeom LEE , Byeongchul LEE
Abstract: A motor-operated compressor includes a compression part including a fixed scroll and an orbiting scroll that form a compression chamber configured to compress fluid by an orbiting motion of the orbiting scroll relative to the fixed scroll. A motor part is disposed at one side of the compression part, and configured to generate a drive force to cause the orbiting scroll to make the orbiting motion. A rotary shaft is connected to the motor part and the orbiting scroll to transmit the drive force generated by the motor part to the orbiting scroll. A main frame is disposed between the compression part and the motor part in an axial direction of the rotary shaft, and configured to support the fixed scroll in the axial direction of the rotary shaft. A discharge chamber is formed between the fixed scroll and the main frame, and fluid discharged from the compression part passes through the discharge chamber to outside of the motor-operated compressor.
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3.发明申请公开(公告)号：US20200088199A1
公开(公告)日：2020-03-19
申请号：US16692112
申请日：2019-11-22
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：US20180298901A1
公开(公告)日：2018-10-18
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：US20170306955A1
公开(公告)日：2017-10-26
申请号：US15491051
申请日：2017-04-19
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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Patent Agency Ranking
公开(公告)号：US20160146208A1
公开(公告)日：2016-05-26
申请号：US14945567
申请日：2015-11-19
Applicant: LG ELECTRONICS INC.
Inventor： Sanghun SEONG , Kitae JANG , lnho WON , Jaesang LEE , Byeongchul LEE
CPC classification number: F04C29/005 , F04C18/0215 , F04C29/0021 , F04C29/02 , F04C2240/807
Abstract: A scroll compressor is provided, in which a balancing space may be formed on a sub frame to accommodate at least one balance weight, and an oil discharge hole may be formed on a main frame, thereby suppressing, all from being introduced into or remaining in the balancing space to minimize agitation loss due to oil agitation in the balancing space, and forming a thrust surface of the main frame adjacent to an axial center of the drive shaft to suppress axial leakage at a central portion of the orbiting scroll, reducing a size of the main frame to reduce a total weight of the compressor, facilitating a centering operation of the sub frame, and suppressing an outer diameter of the sub frame from being increased, thereby accomplishing miniaturization of the scroll compressor.
Abstract translation: 提供一种涡旋压缩机，其中可以在副框架上形成平衡空间以容纳至少一个平衡重，并且可以在主框架上形成排油孔，从而抑制全部不被引入或保留在 平衡空间，以使平衡空间中由于油搅动而引起的搅拌损失最小化，并且与主动轴的轴心相邻地形成主框架的推力面，以抑制绕动涡卷的中心部分处的轴向泄漏， 的主框架以减小压缩机的总重量，便于子框架的对中操作，并且抑制副框架的外径增加，从而实现涡旋压缩机的小型化。
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公开(公告)号：US20220282731A1
公开(公告)日：2022-09-08
申请号：US17750740
申请日：2022-05-23
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu CHOI , Cheolhwan KIM , Byeongchul LEE
Abstract: A compressor is provided. The compressor may include a fixed wrap, and an orbiting scroll having an orbiting wrap engaged with the fixed wrap to form compression chambers. The fixed wrap and the orbiting wrap may have irregular wrap curves. At least one interference avoiding portion at which a spacing between the wraps is greater than an orbiting radius or at least one gap compensating portion at which the spacing between the wraps is smaller than the orbiting radius, in a state in which a center of the fixed scroll and a center of the orbiting scroll are aligned with each other, may be provided on a sidewall surface of the fixed wrap or the orbiting wrap, whereby frictional loss or abrasion due to interference between the wraps or a refrigerant leakage due to a gap between the wraps may be prevented.
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公开(公告)号：US20210156374A1
公开(公告)日：2021-05-27
申请号：US17059411
申请日：2019-05-28
Applicant: LG ELECTRONICS INC.
Inventor： Yoonsung CHOI , Jinho KIM , Sungyong AHN , Seheon CHOI , Mitsuhiro FUKUTA , Masaaki MOTOZAWA , Byeongchul LEE
Abstract: An oil detecting device for a compressor and a compressor including an oil detecting device are provided. A casing in which oil is received has a plurality of capillary tubes in an inner space of the casing, and a condition of oil is detected on the basis of a result of a measured pressure from the plurality of capillary tubes.
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公开(公告)号：US20210071663A1
公开(公告)日：2021-03-11
申请号：US17013064
申请日：2020-09-04
Applicant: LG ELECTRONICS INC.
Inventor： Honghee PARK , Junghoon PARK , Kyoungjun PARK , Byeongchul LEE
Abstract: A motor operated compressor according to the present embodiment may include a main housing; an electric motor unit; a rotation shaft; a fixed scroll coupled to an inner space of the main housing; an orbiting scroll provided that performs an orbiting movement with respect to the fixed scroll; a rear housing provided on an opposite side to the fixed scroll with the orbiting scroll therebetween and coupled to the main housing, and disposed with a first space to communicate with a discharge side of the compression chamber; and a first sealing portion provided to surround the first space to form a second space on an outer edge of the first space, wherein the second space includes a first region and a second region in fluid communication with each other. Accordingly, a horizontal motor operated compressor in which a frame and a fixed scroll are integrated may be provided.
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公开(公告)号：US20200300245A1
公开(公告)日：2020-09-24
申请号：US16748896
申请日：2020-01-22
Applicant: LG ELECTRONICS INC.
Inventor： Junghoon PARK , Honghee PARK , Gyeongbeom LEE , Byeongchul LEE
Abstract: A motor-operated compressor is provided and includes an orbiting scroll and a rear housing supporting a rear surface of the orbiting scroll. The rear housing includes a discharge space communicating with a discharge port of the orbiting scroll formed at a central portion of a surface facing the orbiting scroll, an oil separation space formed at one side of the discharge space to communicate with the discharge space, and an oil storage space formed at an edge portion of the surface facing the orbiting scroll. An oil return passage is provided between the oil separation space and the oil storage space, so as to guide oil separated in the oil separation space to the oil storage space. Accordingly, a space for storing oil separated from a discharged refrigerant is sufficiently secured while allowing the rear housing defining the oil storage space to be easily fabricated.
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