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公开(公告)号：US11841014B1
公开(公告)日：2023-12-12
申请号：US18109559
申请日：2023-02-14
Applicant: LG ELECTRONICS INC.
Inventor： Changeol Jo , Jeonghun Kim , Nara Han , Jihoon Park
CPC classification number: F04C18/0261 , F04C18/0215 , F04C29/124
Abstract: A scroll compressor is provided. In the scroll compressor, a valve accommodating groove that accommodates a discharge port and bypass holes is recessed by a predetermined depth into a rear surface of a non-orbiting scroll, and a valve guide is disposed between the rear surface of the non-orbiting scroll and a rear surface of the back pressure chamber assembly facing the rear surface of the non-orbiting scroll. Bypass valve guide holes into which bypass valves that open and close the bypass holes are slidably inserted are formed in the valve guide. Accordingly, the bypass valves that suppress or prevent overcompression in compression chambers are not fastened to a non-orbiting end plate, which may allow the non-orbiting end plate to be reduced in thickness. As the non-orbiting end plate is reduced in thickness, lengths of the bypass holes may be reduced, thereby decreasing dead volumes in the bypass holes.
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公开(公告)号：US20210262469A1
公开(公告)日：2021-08-26
申请号：US17181109
申请日：2021-02-22
Applicant: LG ELECTRONICS INC.
Inventor： Changeol JO , Suchul KIM , Jeonghun Kim , Sung Yong Ahn
Abstract: A compressor may include a casing, and a compression device installed inside of the casing and that compresses the refrigerant while rotating by receiving a rotational force of an electric motor through a rotational shaft. A high/low pressure separation plate may be installed at an upper portion of the compression device, and an insulation plate may be provided to block the high/low pressure separation plate and the suction tube from each other by being located therebetween. The insulation plate may reduce heat transfer between a refrigerant discharge space having a high temperature located at the upper portion of the high/low pressure separation plate and a refrigerant suction space having a relatively low temperature located at a lower portion of the high/low pressure separation plate.
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公开(公告)号：US20230400022A1
公开(公告)日：2023-12-14
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: F04C28/26 , F04C18/0215
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：US11781546B1
公开(公告)日：2023-10-10
申请号：US18099004
申请日：2023-01-19
Applicant: LG ELECTRONICS INC.
Inventor： Changeol Jo , Jeonghun Kim , Nara Han , Kidae Kwon
CPC classification number: F04C18/0215 , F04C18/0261 , F04D27/0215
Abstract: A scroll compressor may include a block insertion groove recessed by a predetermined depth into a rear surface of a non-orbiting scroll to accommodate a discharge port and at least one bypass hole, and a retainer block having at least one bypass valve to open and close the at least one bypass hole may be fixedly inserted into the block insertion groove. Accordingly, the at least one bypass valve that suppresses or prevents overcompression in a compression chamber is not fastened to a non-orbiting end plate, which may allow the non-orbiting end plate to be formed thin. As the non-orbiting end plate is reduced in thickness, a length of the at least one bypass hole may be reduced, thereby decreasing a dead volume in the at least one bypass hole.
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Patent Agency Ranking
公开(公告)号：US11629714B2
公开(公告)日：2023-04-18
申请号：US17181109
申请日：2021-02-22
Applicant: LG ELECTRONICS INC.
Inventor： Changeol Jo , Suchul Kim , Jeonghun Kim , Sung Yong Ahn
Abstract: A compressor may include a casing, and a compression device installed inside of the casing and that compresses the refrigerant while rotating by receiving a rotational force of an electric motor through a rotational shaft. A high/low pressure separation plate may be installed at an upper portion of the compression device, and an insulation plate may be provided to block the high/low pressure separation plate and the suction tube from each other by being located therebetween. The insulation plate may reduce heat transfer between a refrigerant discharge space having a high temperature located at the upper portion of the high/low pressure separation plate and a refrigerant suction space having a relatively low temperature located at a lower portion of the high/low pressure separation plate.
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6.发明授权公开(公告)号：US12098723B2
公开(公告)日：2024-09-24
申请号：US18367576
申请日：2023-09-13
Applicant: LG ELECTRONICS INC.
Inventor： Jeonghun Kim , Changeol Jo , Nara Han , Juhwan Yun
CPC classification number: F04C28/26 , F04C18/0215 , F04C18/0246 , F04C27/005 , F04C29/128 , F04C23/008 , F04C2240/805 , F04C2270/185
Abstract: A scroll compressor is provided that may include a block insertion groove to accommodate a discharge port and at least one bypass hole disposed in a rear surface of a non-orbiting end plate of a non-orbiting scroll, and a retainer block including at least one bypass valve to open or close the bypass hole inserted into the block insertion groove. The bypass hole may include a first bypass hole and a second bypass hole. The bypass valve may include a first bypass valve to open or close the first bypass hole and a second bypass valve to open or close the second bypass hole, and may be disposed between the block insertion groove and the retainer block facing the block insertion groove. Accordingly, the first and second bypass valves are not fastened to the non-orbiting end plate, which may allow the non-orbiting end plate to be made thin.
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公开(公告)号：US12098724B2
公开(公告)日：2024-09-24
申请号：US18138920
申请日：2023-04-25
Applicant: LG ELECTRONICS INC.
Inventor： Changeol Jo , Jeonghun Kim , Nara Han , Jihoon Park
CPC classification number: F04C29/124 , F04C18/0215 , F04C18/0261 , F04C29/0035
Abstract: A scroll compressor is disclosed. The scroll compressor may include a back pressure hole formed through a non-orbiting scroll and a back pressure chamber assembly such that a compression chamber and a back pressure chamber communicate with each other. A back pressure valve may be disposed inside of the back pressure hole and move along a longitudinal direction of the back pressure hole by a pressure difference between the compression chamber and the back pressure chamber, to vary a flow path area of the back pressure hole. The back pressure valve may include a valve body that extends in an axial direction and a plurality of holes formed through the valve body in the axial direction. With the configuration, pressure pulsation in the back pressure chamber may be suppressed or prevented.
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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：US11415131B2
公开(公告)日：2022-08-16
申请号：US17502124
申请日：2021-10-15
Applicant: LG ELECTRONICS INC.
Inventor： Minjin Lee , Minjae Kim , Jeonghun Kim , Jinhak Choi , Youngbae Lee
Abstract: A scroll compressor may include a compressor chamber, a back pressure chamber, a first intermediate pressure hole, a second intermediate pressure hole, a third intermediate pressure hole, a back pressure switching unit configured to selectively connect the first intermediate pressure hole and the back pressure chamber or the second intermediate pressure hole and the back pressure chamber, a capacity variable unit configured to selectively open and close a capacity variable passage, and a mode switching unit provided outside of the casing and configured to control opening and closing operations of the back pressure switching unit and the capacity variable unit. This may simplify the structure of the back pressure switching unit and the mode switching unit, thereby maintaining compactness of the compressor while installing the back pressure switching unit inside of the casing, and thus, operation reliability of the mode switching unit may be secured and maintenance facilitated.
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