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公开(公告)号：US11953003B2
公开(公告)日：2024-04-09
申请号：US18100712
申请日：2023-01-24
Applicant: LG ELECTRONICS INC.
Inventor： Changeol Jo , Jeonghun Kim , Nara Han , Juhwan Yun
CPC classification number: F04C18/0215 , F04C28/26 , F04C29/124 , F04C29/128
Abstract: A scroll compressor is provided, the scroll compressor having a block insertion groove recessed by a predetermined depth into a rear surface of a non-orbiting scroll to accommodate a discharge port and a plurality of bypass holes, and a retainer block having a bypass valve that opens and closes the plurality of bypass holes fixedly inserted into the block insertion groove. The bypass valve may be fixed to a first axial side surface of the retainer block facing the block insertion groove. Through this, the bypass valve that suppresses or prevents overcompression of a compression chamber is not fastened to a non-orbiting end plate, which may allow the non-orbiting end plate to be reduced in thickness. This may shorten lengths of the plurality of bypass holes and the discharge port by the reduced thickness of the non-orbiting end plate, thereby decreasing a dead volume in the plurality of bypass holes and the discharge port.
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公开(公告)号：US11257970B2
公开(公告)日：2022-02-22
申请号：US15993201
申请日：2018-05-30
Applicant: LG ELECTRONICS INC.
Inventor： Yoonsuk Choi , Joongtae Kim , Juhwan Yun
IPC: H01L31/048 , H02S40/34 , H01L31/02 , H02S30/10 , H02S40/32
Abstract: Disclosed is a solar cell panel module including a solar cell panel; a wiring enclosure electrically connected to the solar cell panel and mounted on or at a back surface of the solar cell panel; and an adhesive member disposed between the wiring enclosure and the solar cell panel to attach the wiring enclosure and the solar cell panel. An air gap opened to an outside and having a thickness corresponding to a thickness of the adhesive member is provided between the solar cell panel and the wiring enclosure by the adhesive member.
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公开(公告)号：US10965245B2
公开(公告)日：2021-03-30
申请号：US16159204
申请日：2018-10-12
Applicant: LG ELECTRONICS INC.
Inventor： Dongho Han , Hyunho Do , Juhwan Yun
Abstract: According to an embodiment of the present invention, there is provided a photovoltaic module including a photovoltaic solar cell, a converter to convert a level of a direct current power from the photovoltaic solar cell, an inverter to convert the direct current power from the converter into an alternating current power, a controller to control the converter and the inverter, and a communication unit to perform electric power line communication with a gateway and at least one nearby photovoltaic module, in which the communication unit periodically transmits communication state information to the gateway and the at least one nearby photovoltaic module using the electric power line communication, and receives a message transmitted by the gateway along a path determined according to the communication state information.
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公开(公告)号：US09297383B2
公开(公告)日：2016-03-29
申请号：US13949307
申请日：2013-07-24
Applicant: LG ELECTRONICS INC.
Inventor： Honggyun Jin , Suchul Kim , Kiwon Park , Juhwan Yun
CPC classification number: F04C18/0261 , F04C18/0215 , F04C18/023 , F04C23/008 , F04C27/005 , F04C28/26
Abstract: An upper back pressure type scroll compressor is provided having a back pressure chamber. The scroll compressor may include a casing, a discharge cover, a main frame, a first scroll supported by the main frame, and a second scroll forming a suction chamber, an intermediate pressure chamber, and a discharge chamber together with the first scroll. The scroll compressor may also include a back pressure plate coupled to the second scroll. The back pressure plate may include a cavity with which the intermediate pressure chamber of the second scroll communicates. The scroll compressor may further include a floating plate movably coupled to the back pressure plate so as to seal an upper portion of the cavity.
Abstract translation: 提供具有背压室的上背压式涡旋压缩机。 涡旋式压缩机可以包括壳体，排出盖，主框架，由主框架支撑的第一涡卷，以及与第一涡旋件一起形成吸入室的第二涡卷，中间压力室和排出室。 涡旋压缩机还可以包括联接到第二涡旋件的背压板。 背压板可以包括与第二涡卷的中间压力室连通的空腔。 涡旋压缩机还可以包括可移动地联接到背压板的浮动板，以便密封空腔的上部。
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5.发明授权公开(公告)号：US11562844B2
公开(公告)日：2023-01-24
申请号：US16420455
申请日：2019-05-23
Applicant: LG ELECTRONICS INC.
Inventor： Younjong Kang , Myonghwan Kim , Yunsu Bae , Juhwan Yun
Abstract: Disclosed are a core, a transformer, a power converting apparatus, and a photovoltaic module including the same. The core includes: a base; outer wall formed on the base; a first protruding member protruding on the base and disposed within the outer wall; and a second protruding member protruding on the base, disposed within the outer wall, and separated from the first protruding member, wherein a length of an edge of the second protruding member opposing the first protruding member is less than an outer circumference of the first protruding member. Accordingly, the second protruding member may be machined so easily that a leakage inductance can be easily controlled according to design specification.
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Patent Agency Ranking
公开(公告)号：US11703053B2
公开(公告)日：2023-07-18
申请号：US17512967
申请日：2021-10-28
Applicant: LG ELECTRONICS INC.
Inventor： Juhwan Yun , Nara Han , Mose Kang , Jihoon Park
CPC classification number: F04C18/0215 , F04C18/0261 , F04C18/0269 , F04C23/008 , F04C29/068 , F04C2240/30
Abstract: A scroll compressor is provided that may include a casing, a drive motor, an orbiting scroll, a non-orbiting scroll, and a floating plate provided with a cover portion to cover an area between an outer wall portion and an inner wall portion of the non-orbiting scroll so as to form a back pressure chamber with the non-orbiting scroll, and a valve accommodating portion that extends from the cover portion so as to accommodate a discharge valve configured to open and close a discharge port. Accordingly, structure for forming a back pressure chamber is simplified to thereby reduce the number of components and man-hours required for assembly.
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公开(公告)号：US11271523B2
公开(公告)日：2022-03-08
申请号：US16125040
申请日：2018-09-07
Applicant: LG ELECTRONICS INC.
Inventor： Hyeonjae Lee , Joongtae Kim , Youngchan Park , Juhwan Yun , Suchang Lee
Abstract: A photovoltaic module includes: a photovoltaic solar cell module; a junction box disposed on a back surface of the photovoltaic solar cell module, and to convert a DC power from the photovoltaic solar cell module to an AC power; and a first cable electrically connected to the junction box and to output the AC power. The junction box includes an insulating case having an insulating material, and disposed on the back surface of the photovoltaic solar cell module, and a circuit board within the insulating case, and mounted thereon a converter for converting a level of the DC power from the photovoltaic solar cell module, and an inverter for converting a DC power from the converter into an AC power. Th first cable includes first and second conductive lines for outputting the AC power output from the circuit board to the outside, without a grounding line.
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公开(公告)号：US10715054B2
公开(公告)日：2020-07-14
申请号：US16435052
申请日：2019-06-07
Applicant: LG ELECTRONICS INC. , POSTECH ACADEMY-INDUSTRY FOUNDATION
Inventor： Suchang Lee , Youngchan Park , Hyeonseok Lee , Yoongeol Choi , Juhwan Yun , Bongkoo Kang
IPC: H02M7/00 , H02M7/5387 , H02M5/18 , H02M5/458 , H02J7/35 , H01L31/042 , H02J7/34 , H02S40/34 , H02M1/00
Abstract: A power conversion device includes a coupled inductor having a first inductor and second inductor, connected to a DC source; a full-bridge switching unit including a first leg having a first switching element and a second switching element serially connected to the first switching element, and a second leg having a third switching element and a fourth switching element serially connected to the third switching element, wherein the first leg connected to the first inductor and the second leg connected to the second inductor; a transformer connected to the full-bridge switching unit; a third inductor connected in parallel with the transformer; and a storage capacitor connected to the full-bridge switching unit.
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公开(公告)号：US10361641B2
公开(公告)日：2019-07-23
申请号：US15907901
申请日：2018-02-28
Applicant: LG ELECTRONICS INC. , POSTECH ACADEMY-INDUSTRY FOUNDATION
Inventor： Suchang Lee , Youngchan Park , Hyeonseok Lee , Yoongeol Choi , Juhwan Yun , Bongkoo Kang
IPC: H02M7/538 , H02M7/5387 , H02M5/18 , H02M5/458 , H02J7/35 , H01L31/042 , H02J7/34 , H02S40/34 , H02M1/00
Abstract: Disclosed are a power conversion device and a photovoltaic module including the same. The power conversion device includes a full-bridge switching unit including first to fourth switching elements, a first transformer having an input terminal connected between the first switching element and the second switching element in the full-bridge switching unit and an output terminal connected between the third switching element and the fourth switching element in the full-bridge switching unit, wherein the first switching element is serially connected to the second switching element, and the third switching element is serially connected to the fourth switching element, and a second transformer connected to the full-bridge switching unit as a half-bridge, wherein the full-bridge switching unit coverts a first DC power input to the first transformer into a first alternating current AC waveform, based on variable duty switching.
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公开(公告)号：US09222475B2
公开(公告)日：2015-12-29
申请号：US13949412
申请日：2013-07-24
Applicant: LG ELECTRONICS INC.
Inventor： Suchul Kim , Honggyun Jin , Juhwan Yun , Kiwon Park
CPC classification number: F04C18/0261 , F04C18/0215 , F04C18/023 , F04C23/008 , F04C27/005 , F04C28/26
Abstract: A scroll compressor having a back pressure discharge is provided. The scroll compressor may include a casing, a discharge cover, a main frame, a first scroll supported by the main frame, and a second scroll forming at least a discharge chamber together with the first scroll. The second scroll may include a discharge opening through which an operation fluid may be discharged. The scroll compressor may also include a back pressure chamber assembly fastened to the second scroll with a Efastener, a back pressure discharge opening that communicates with the back pressure chamber, and a discharge path by which the discharge chamber and the discharge space communicate with each other. The scroll compressor may further include a check valve disposed at the back pressure discharge opening to prevent the operation fluid from being introduced into the back pressure chamber.
Abstract translation: 提供具有背压放电的涡旋压缩机。 涡旋式压缩机可以包括壳体，排出盖，主框架，由主框架支撑的第一涡卷，以及与第一涡旋件一起形成至少排出室的第二涡旋件。 第二涡卷可以包括可以排出操作流体的排放口。 涡旋式压缩机还可以包括用Efastener固定到第二涡卷的背压室组件，与背压室连通的背压排放口，以及排放室和放电空间相互连通的排放路径 。 涡旋压缩机还可以包括设置在背压排出口处的止回阀，以防止操作流体被引入到背压室中。
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