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公开(公告)号：US20170292517A1
公开(公告)日：2017-10-12
申请号：US15363287
申请日：2016-11-29
Applicant: LG ELECTRONICS INC.
Inventor： Junggu LEE , Taekyoung KIM , Yicheol CHOI , Joohyung KIM , Ilyoung PARK , Bumsuk KIM , Junyoung LIM
CPC classification number: F04C29/047 , F04C18/0215 , F04C27/005 , F04C29/0085 , F04C29/028 , F04C29/12 , F04C2240/30 , F04C2240/40 , F04C2240/50 , F04C2240/60 , F04C2240/807 , F04C2240/808
Abstract: A motor-operated compressor includes a casing having an inner space in which a driving motor, an orbiting scroll and a fixed scroll are accommodated, and a controller provided outside the casing. The casing includes an intake hole formed at a side adjacent to the controller and an exhaust hole formed at a side adjacent to the fixed scroll on the basis of the driving motor. The casing includes a communication passage formed between the casing and a stator of the driving motor, such that a refrigerant introduced into the inner space through the intake hole is introduced into the suction chamber through the driving motor. A back pressure space supporting the orbiting scroll is sealed by oil. The stator has teeth on its inner circumferential surface and protrusions on its outer circumferential surface, each protrusion being located within a width range of each tooth.
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公开(公告)号：US20220235510A1
公开(公告)日：2022-07-28
申请号：US17557955
申请日：2021-12-21
Applicant: LG Electronics Inc.
Inventor： Yicheol CHOI , Ilyoung PARK , Sanghyun JOO , Jangseok LEE
Abstract: A washing machine is configured to perform washing using carbon dioxide and includes a first housing that defines an inner space and an opening, a drum disposed in the inner space of the first housing and configured to accommodate laundry, a barrier that covers the opening of the first housing and is coupled to the first housing, a second housing that covers a surface of the barrier and is coupled to the first housing, and a motor assembly coupled to the barrier. The motor assembly includes a stator, a rotor configured to rotate the drum, a bearing housing, a rotary shaft disposed in the bearing housing, the rotary shaft having a first end coupled to the rotor and a second end coupled to the drum, and a first sealing part and a second sealing part that are disposed in the bearing housing and coupled to the rotary shaft.
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公开(公告)号：US20200348050A1
公开(公告)日：2020-11-05
申请号：US16794902
申请日：2020-02-19
Applicant: LG Electronics Inc.
Inventor： Joohyung KIM , Ochang GWON , Bumsuk KIM , Yicheol CHOI
Abstract: The present disclosure provides an electric compressor comprising a main housing, a motor part disposed in the main housing and comprising a stator comprising a rotor accommodating portion and a rotor rotatably disposed in the rotor accommodating portion, a compression part rotatably connected to the motor part, and an inverter part electrically connected to the motor part. The motor part is disposed in a motor room formed inside the main housing, the stator comprises a plurality of insulating protrusions protruding from an outer circumferential surface of the stator, and the plurality of insulating protrusions is configured to be brought into contact with an inner circumferential surface of the motor room.
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Patent Agency Ranking
公开(公告)号：US20200248691A1
公开(公告)日：2020-08-06
申请号：US16776937
申请日：2020-01-30
Applicant: LG ELECTRONICS INC.
Inventor： IL Young PARK , Yicheol CHOI , Sang Hyun JOO , Junyoung LIM
Abstract: A scroll compressor includes a main housing. A driving part configured to generate torque and a compression part driven by the driving part are accommodated in the main housing. The compression part includes a fixed scroll and an orbiting scroll that engages with the fixed scroll to form a compression chamber in which a refrigerant is compressed. The torque of the driving part is transmitted to the compression part by a driving shaft. The driving shaft is rotatably supported by a main bearing positioned in a low pressure region adjacent to the driving part. Accordingly, since the main bearing is disposed in a low pressure region, a load applied to the main bearing may be decreased.
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公开(公告)号：US20200232462A1
公开(公告)日：2020-07-23
申请号：US16693940
申请日：2019-11-25
Applicant: LG ELECTRONICS INC.
Inventor： Ilyoung PARK , Yicheol CHOI , Sanghyun JOO , Junyoung LIM
Abstract: A motor operated compressor includes an orbiting scroll that defines a compression chamber together with a fixed scroll. The compressor includes a main frame disposed around and supporting the orbiting scroll. The main frame defines a back-pressure chamber together with the orbiting scroll. The compressor includes a groove disposed in one of the orbiting scroll and the main frame. A first sealing member is inserted into the groove. A second sealing member is inserted into the groove to elastically press the first sealing member into close contact with the orbiting scroll or the main frame. A radial distance (a) between an outer wall of the groove and the first sealing member is 6 to 8% (0.06≤a/W≤0.08) of a difference (W) between an outer radius (OR) and an inner radius (IR) of the first sealing member (W=OR−IR).
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公开(公告)号：US20200032795A1
公开(公告)日：2020-01-30
申请号：US16438903
申请日：2019-06-12
Applicant: LG ELECTRONICS INC.
Inventor： Joohyung KIM , Sanghoon NAM , Taesang PARK , Yicheol CHOI
Abstract: An electric compressor includes a main housing including a motor chamber. The motor chamber includes a driving motor. The compressor includes a frame fixed to one end of the main housing, a first scroll supported by one side surface of the frame, and a second scroll provided between the frame and the first scroll. The second scroll, supported by the frame, makes an orbiting motion upon receiving a rotational force from the driving motor. The second scroll also forms a compression chamber with the first scroll and a back pressure space with the frame. A rear cover coupled to the main housing forms a discharge space with the first scroll. A back pressure flow channel extends through the first scroll and the frame to guide a refrigerant and oil from the compression chamber to the discharge and back pressure spaces. The compressor also includes a plurality of decompression portions.
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公开(公告)号：US20220154388A1
公开(公告)日：2022-05-19
申请号：US17527740
申请日：2021-11-16
Applicant: LG Electronics Inc.
Inventor： Sanghun BAE , Bongjae KIM , Sanghyuk KWON , Yicheol CHOI , Jangseok LEE
Abstract: A washing machine is configured to perform washing using carbon dioxide. The washing machine includes a first housing that defines an opening and an inner space, a drum disposed in the inner space of the first housing and configured to receive laundry, a barrier that is coupled to the first housing and seals the opening of the first housing, and a second housing that faces a surface of the barrier and is coupled to the first housing. The barrier defines (i) a first space between the first housing and the barrier from leaking and (ii) a second space between the second housing, where the barrier is configured to block liquid carbon dioxide injected into the first space from leaking into the second space.
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8.发明申请公开(公告)号：US20200370557A1
公开(公告)日：2020-11-26
申请号：US16796416
申请日：2020-02-20
Applicant: LG Electronics Inc.
Inventor： Jehyeon MOON , Bumsuk KIM , Yicheol CHOI , Sanghyun JOO
Abstract: The present disclosure provides an electric compression and expansion apparatus comprising a main housing comprising a motor chamber, a motor part housed in the motor chamber, a rotary shaft part extending in a length direction and coupled to the motor part, a compression part coupled to one side of the rotary shaft part in the length direction, and an expansion part coupled to another side of the rotary shaft part in the length direction. The rotary shaft part is configured to rotate integrally with the motor part, and the compression part is configured to rotate integrally with the rotary shaft part to compress refrigerant. The expansion part is configured to rotate integrally with the rotary shaft part to expand the compressed refrigerant.
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