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1.发明申请公开(公告)号：US20200240409A1
公开(公告)日：2020-07-30
申请号：US16635956
申请日：2018-07-30
申请人： LG Electronics Inc.
发明人： Jaeha LEE , Jinho KIM , Sungyong AHN , Byeongchul LEE , Seheon CHOI
摘要： A bush bearing having an outer lubricating layer, a manufacturing method therefor and a scroll compressor having same applied thereto, according to the present disclosure, includes a bush bearing comprising: a base member which has a cylindrical shape having no separated surfaces along the circumferential direction; and a lubricating member which is formed from a material having a lower rigidity and more excellent lubricity than the base member, and has a cylindrical shape having no separated surfaces along the circumferential direction by being integrally provided to the outer circumferential surface of the base member, wherein the cylindricity of the outer circumferential surface of the lubricating member satisfies a value that is within 0.6% of the average thickness of the lubricating member, and the lubricating member has carbon fiber contained in a resin base, wherein the carbon fiber has cut surfaces exposed on both ends of the lubricating member.
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公开(公告)号：US20230204035A1
公开(公告)日：2023-06-29
申请号：US17919934
申请日：2021-03-08
申请人： LG Electronics Inc.
发明人： Jaeha LEE , Sungyong AHN , Howon LEE
CPC分类号： F04C29/124 , F04C18/0215 , F04C29/023 , F04C29/065
摘要： A compressor according to embodiments of the present disclosure comprises a discharge valve which is provided so as to be coupled to a fixed scroll and open/close a discharge hole. The discharge valve includes a coupling portion which is coupled to one surface of the fixed scroll, the surface facing a muffler, and a head portion extending from the coupling portion and opening/closing the discharge hole. The head portion may be provided with a communicating hole for allowing the discharge hole and the muffler to be in communication with each other. Accordingly, a backflow of a compressed refrigerant is prevented during the operation of the compressor, and thus over-compression of the refrigerant can be prevented. Also, when the compressor stops operating, only a certain amount of the discharged refrigerant is allowed to flow backward to prevent a reverse rotation of an orbiting scroll and a decrease in the oil level of the oil stored in a case.
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公开(公告)号：US20220178371A1
公开(公告)日：2022-06-09
申请号：US17506348
申请日：2021-10-20
申请人： LG Electronics Inc.
发明人： Jaeha LEE , Yongkyu CHOI , Minho LEE
摘要： A scroll compressor includes a motor portion fixed in an inner space of a casing, a compression portion fixed to the inner space of the casing at one side of the motor portion in an axial direction, a rotation shaft to transmit a driving force from the motor portion to the compression portion, and a flow path guide provided in a discharge space between the motor portion and the compression portion and provided with a guide outlet communicating with the discharge space and opened in a direction toward the rotation shaft. Therefore, most of refrigerant discharged to the discharge space through the flow path guide is moved toward an air gap to enhance an oil separation effect, and thus a normal operation point of the air conditioner can be accelerated.
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公开(公告)号：US20200032797A1
公开(公告)日：2020-01-30
申请号：US16526421
申请日：2019-07-30
申请人： LG Electronics Inc.
发明人： Jaeha LEE , Jinho KIM , Sungyong AHN , Yoonsung CHOI
摘要： A fluid compressor is provided. The fluid compressor includes a case including an inlet configured to introduce fluid to be compressed, a compression unit including a compression chamber configured to compress the fluid introduced into the case, and a discharge port configured to discharge the compressed fluid to the outside of the compression chamber, a motor configured to drive the compression unit, and a valve configured to open and close the discharge port. The valve includes a fastening portion coupled to the compression unit to be spaced a first distance from the discharge port.
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公开(公告)号：US20190390675A1
公开(公告)日：2019-12-26
申请号：US16330855
申请日：2017-09-06
申请人： LG ELECTRONICS INC.
发明人： Sungyong AHN , Jinho KIM , Junghoon PARK , Junchul OH , Byeongchul LEE , Jaeha LEE , Seheon CHOI
摘要： The present invention relates to a scroll compressor. A scroll compressor according to the present embodiment comprises a rotational shaft, wherein the rotational shaft comprises: a first frame support part having an inner circumferential surface portion, into which a boss part of a first scroll is inserted, and an outer circumferential surface portion for forming an outer surface thereof; and a guide hole penetrating from the inner circumferential surface portion toward the outer circumferential surface portion.
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公开(公告)号：US20230167820A1
公开(公告)日：2023-06-01
申请号：US17993417
申请日：2022-11-23
申请人： LG Electronics Inc.
发明人： Taekyoung KIM , Sungyong AHN , Junghoon PARK , Jaeha LEE
CPC分类号： F04C18/0215 , F04C29/12 , F04C18/0261 , F04C2210/206
摘要： A scroll compressor includes a casing having an oil storage space, a fixed scroll disposed inside the casing, an orbiting scroll disposed on one side of the fixed scroll and performing an orbiting motion relative to the fixed scroll so as to form a compression chamber, a discharge cover coupled to another side opposite to the one side of the fixed scroll and having a cover bottom surface, and an oil feeder coupled to the cover bottom surface to face a direction opposite to the fixed scroll, to communicate with the oil storage space. The cover bottom surface is disposed at an inner side of an inner circumference of the oil feeder and defines a discharge hole to communicate with the inner side of the oil feeder.
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公开(公告)号：US20220056908A1
公开(公告)日：2022-02-24
申请号：US17342168
申请日：2021-06-08
申请人： LG Electronics Inc.
发明人： Taekyoung KIM , Sungyong AHN , Jaeha LEE
摘要： A scroll compressor includes oil in an oil storage space that is brought into direct contact with and stirred with a discharge refrigerant. The scroll compressor includes a fixed scroll, an orbiting scroll coupled to one side of the fixed scroll, and a discharge cover coupled to another side of the fixed scroll and provided with a muffler hole communicating with a refrigerant discharge space and the oil storage space.
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公开(公告)号：US20190271311A1
公开(公告)日：2019-09-05
申请号：US16290099
申请日：2019-03-01
申请人： LG ELECTRONICS INC.
发明人： Yoonsung CHOI , Jinho KIM , Jaeha LEE
摘要： A scroll compressor includes a first scroll including a fixed wrap, a second scroll comprising an orbiting wrap, and a boss portion, a rotating shaft including an eccentric portion inserted into the boss portion of the second scroll to transfer a rotational force, a frame having a shaft hole, a first bearing provided between the shaft hole of the frame and an outer circumferential surface of the rotating shaft, and a second bearing provided between an inner circumferential surface of the boss portion and an outer circumferential surface of the eccentric portion of the rotating shaft, wherein a differential pressure space portion is formed between the first bearing and the second bearing in a radial direction, and has a radial cross section wider than a radial gap between an inner circumferential surface of the second bearing and the outer circumferential surface of the eccentric portion.
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公开(公告)号：US20170067467A1
公开(公告)日：2017-03-09
申请号：US15244543
申请日：2016-08-23
申请人： LG ELECTRONICS INC.
发明人： Jaeha LEE , Junchul OH , Seheon CHOI , Byeongchul LEE
CPC分类号： F04C29/026 , F04C18/0215 , F04C23/008 , F04C29/005 , F04C29/0085 , F04C29/12 , F04C2210/206 , F04C2210/26 , F04C2240/10 , F04C2240/20 , F04C2240/30 , F05C2201/021
摘要： A scroll compressor is provided that may include a casing; a drive motor; a fixed scroll that forms a compression space by being coupled to the orbiting scroll; and a discharge cover provided at an inner space of the casing, the discharge cover having a space that communicates with the compression space and separated from the inner space of the casing, and having one or more discharge hole on a side surface thereof, the one or more discharge hole providing communication between an inside and an outside of the space. With such a configuration, vibration noise of the scroll compressor may be more reduced in comparison with a case in which an oil separator is provided outside of the casing. Further, as an area of the one or more discharge hole and a volume of the space are optimized, efficiency of the scroll compressor may be enhanced.
摘要翻译： 提供一种可包括壳体的涡旋压缩机; 驱动电机; 固定涡卷，其通过联接到所述绕动涡旋件而形成压缩空间; 以及设置在所述壳体的内部空间处的排出盖，所述排出盖具有与所述压缩空间连通并与所述壳体的内部空间分离的空间，并且在其侧面具有一个或多个排出孔， 或更多的排出孔，其提供空间的内部和外部之间的连通。 通过这样的结构，与在壳体外部设置油分离器的情况相比，涡旋式压缩机的振动噪声可能会更多。 此外，随着一个或多个排放孔的区域和空间的体积被优化，可以提高涡旋压缩机的效率。
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