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公开(公告)号:US10684049B2
公开(公告)日:2020-06-16
申请号:US14876048
申请日:2015-10-06
Applicant: LG ELECTRONICS INC.
Inventor: Pilhyun Yoon , Yongcheol Sa
Abstract: An oil separator and an air conditioner including an oil separator are provided. The oil separator may include a housing including a suction tube that guides a refrigerant, in which an oil may be mixed, into the housing and a discharge tube that discharges refrigerant separated from the refrigerant, in which the oil may be mixed, to the outside, a first collection tube that communicates with a lower portion of the housing to discharge the oil separated from the oil to a compressor, a second collection tube that communicates with a side surface of the housing to discharge the oil separated from the refrigerant to the compressor, and a control valve provided in communication with the first collection tube or the second collection tube to control a flow of the oil through the first collection tube or the second collection tube.
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公开(公告)号:US20180180317A1
公开(公告)日:2018-06-28
申请号:US15901689
申请日:2018-02-21
Applicant: LG Electronics Inc.
Inventor: Pilhyun Yoon , Yongcheol Sa , Chiwoo Song
IPC: F24F11/30 , F24F11/70 , F24F11/83 , F24F140/12 , F24F110/40 , F24F110/20 , F24F11/42 , F24F110/22 , F24F11/41 , F24F110/10 , F24F110/12 , F24F110/00
Abstract: An air conditioner and a method of controlling the same are provided. The air conditioner includes an outside unit, which is provided with a compressor and an evaporator, an outside temperature sensor attached to the outside unit to sense outside temperature, an outside humidity recognition part attached to the outside unit to recognize information about outside humidity, a low pressure sensor that senses an evaporation pressure of the evaporator, and a control part that controls an operation of the compressor, based on both information about dew-point temperature sensed from the outside temperature sensor and the outside humidity recognition part and information about the evaporation pressure sensed from the low pressure sensor. The control part changes an operation frequency of the compressor according to whether the evaporation pressure is not lower than a preset reference low pressure, to prevent frosting of the evaporator.
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公开(公告)号:US20170089628A1
公开(公告)日:2017-03-30
申请号:US15145875
申请日:2016-05-04
Applicant: LG ELECTRONICS INC.
Inventor: Jiyoung JANG , Yongcheol Sa
CPC classification number: F25B49/027 , F24F1/0011 , F24F1/06 , F24F1/16 , F24F1/50 , F24F1/56 , F24F11/43 , F24F11/81 , F24F2110/12
Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include a first guide provided on at least one surface of an outdoor device of the air conditioner to guide outdoor air to an air inlet, a second guide provided on one surface of the outdoor device to guide air discharged from an air outlet to an outside, and a third guide that guides the air discharged from the air outlet to flow from the second guide to the first guide.
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公开(公告)号:US20150136367A1
公开(公告)日:2015-05-21
申请号:US14590318
申请日:2015-01-06
Applicant: LG ELECTRONICS INC.
Inventor: Hongseong KIM , Sangyeul Lee , Yongcheol Sa , Hanchoon Lee
IPC: F28D7/10
Abstract: A heat exchanger is provided which may include a first heat exchange tube in a pipe shape, including a first fluid inlet, into which a first fluid may be introduced and flow, and a first fluid outlet, through which the first fluid may be discharged; a second heat exchange tube that passes through the first heat exchange tube, including a second fluid inlet, into which a second fluid may be introduced and flow, and a second fluid outlet, through which the second fluid may be discharged; and a third heat exchange tube that includes a third fluid inlet, into which the second fluid discharged through the second fluid outlet may be introduced and flow, and a third fluid outlet, through which the second fluid may be discharged, the third fluid outlet enclosing an external surface of the first heat exchange tube.
Abstract translation: 提供了一种热交换器,其可以包括管状的第一热交换管,包括第一流体入口和第一流体出口,第一流体入口可以被引入第一流体入口和第一流体出口,第一流体可以通过该第一流体出口排出; 第二热交换管,其穿过第一热交换管,包括第二流体入口,第二流体可以被引入并流动;第二流体出口,第二流体可以通过该第二流体出口排出; 以及第三热交换管,其包括第三流体入口,通过第二流体出口排出的第二流体可以被引入并流动到其中;第三流体出口,第二流体可以通过该第三流体出口排出,第三流体出口包围 第一换热管的外表面。
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公开(公告)号:US12117219B2
公开(公告)日:2024-10-15
申请号:US17546212
申请日:2021-12-09
Applicant: LG ELECTRONICS INC.
Inventor: Jiyoung Jang , Yongcheol Sa , Chiwoo Song
CPC classification number: F25B49/022 , F24F11/36 , F25B41/24 , F25B49/02 , F25B2500/22 , F25B2500/222 , F25B2600/0251 , F25B2600/2513 , F25B2600/2515 , F25B2600/2519 , F25B2700/19
Abstract: An air conditioner may include an outdoor unit having a compressor; at least one indoor unit having an indoor heat exchanger, an indoor expansion valve, and a leak sensor that senses leakage of the refrigerant; a gaseous line; a liquid line; a first shut-off valve disposed adjacent to the at least one indoor unit that opens and closes the gaseous line; a second shut-off valve disposed adjacent to the at least one indoor unit that opens and closes the liquid line; a subcooling pipe branched from the liquid line and connected to an inlet of the compressor; a subcooling expansion valve that expands refrigerant, flowing through the subcooling pipe; and a controller configured to control operation of the compressor and to control opening and closing of the first shut-off valve, the second shut-off valve, the indoor expansion valve, and the subcooling expansion valve.
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公开(公告)号:US12111082B2
公开(公告)日:2024-10-08
申请号:US17792489
申请日:2020-11-18
Applicant: LG ELECTRONICS INC.
Inventor: Jaehwa Jung , Yongcheol Sa
IPC: F25B13/00
CPC classification number: F25B13/00 , F25B2313/003 , F25B2313/007 , F25B2313/0233 , F25B2313/02732
Abstract: Provided is an air conditioning apparatus. The air conditioning apparatus includes an outdoor unit through which a refrigerant circulates, a plurality of indoor units through which water circulates, the plurality of indoor units comprising a first indoor heat exchanger and a second indoor heat exchanger, and a heat-exchange device configured to connect the outdoor unit to the indoor unit, the heat exchange device including a first heat exchanger and a second heat exchanger, in which the refrigerant and water are heat exchanged with each other. The heat exchange device includes a first inflow tube extending from the first indoor heat exchanger toward the first heat exchanger to guide a flow of the water, a second inflow tube extending from the second indoor heat exchanger toward the second heat exchanger to guide the flow of the water, a first pump provided in the first inflow tube and a second pump provided in the second inflow tube. When a portion of the indoor unit performs a heating operation, and the other portion of the indoor unit performs a cooling operation, when a total capacity required for the indoor unit is equal to or less than a set capacity, the first pump or the second pump operates, and when the total capacity required for the indoor unit exceeds the set capacity, the first pump and the second pump operate.
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公开(公告)号:US12078396B2
公开(公告)日:2024-09-03
申请号:US17378969
申请日:2021-07-19
Applicant: LG ELECTRONICS INC.
Inventor: Chiwoo Song , Yongcheol Sa , Jiyoung Jang
CPC classification number: F25B49/02 , F25B13/00 , F25B39/00 , F25B41/31 , F25B41/40 , F25B2313/02741 , F25B2600/2513 , F25B2700/02 , F25B2700/1931 , F25B2700/2103 , F25B2700/2104 , F25B2700/2106
Abstract: A multi-air conditioner for heating and cooling may include at least one indoor unit for both cooling and heating including an indoor heat exchanger, an outdoor unit, and a distributor disposed between the outdoor unit and the at least one indoor unit. The outdoor unit may include a compressor, a plurality of outdoor heat exchangers, and a switching unit disposed on a discharge side of the compressor to switch a flow of refrigerant. The plurality of outdoor heat exchangers may include a first heat exchanger, a second heat exchanger disposed under the first heat exchanger, and a third heat exchanger disposed under the second heat exchanger. A first end of the third heat exchanger may be connected to the discharge side of the compressor, and a second end of the third heat exchanger may be connected to the indoor unit.
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公开(公告)号:US20240230190A9
公开(公告)日:2024-07-11
申请号:US18380267
申请日:2023-10-16
Applicant: LG ELECTRONICS INC.
Inventor: Daehyoung KIM , Yongcheol Sa , Jiyoung Jang , Chiwoo Song , Jisung Lee
CPC classification number: F25B49/02 , F25B13/00 , F25B2313/007 , F25B2313/0233 , F25B2313/0291 , F25B2313/0292 , F25B2600/2513 , F25B2700/1933
Abstract: An air conditioner may include a controller; a compressor; an outdoor heat exchanger; a plurality of indoor heat exchangers; a switching valve that selectively guides a refrigerant discharged from the compressor to the outdoor heat exchanger or the plurality of indoor heat exchangers; high pressure pipes that connect the switching valve and the plurality of indoor heat exchangers; high pressure valves installed in the high pressure pipes; low pressure pipes that connect an inlet of the compressor and the high pressure pipes. low pressure valves installed in the low pressure pipes; indoor pipes, which are opposite to the high pressure pipes with respect to the plurality of indoor heat exchangers and connected to the plurality of indoor heat exchangers; indoor expansion valves installed in the indoor pipes; a liquid pipe that connects the outdoor heat exchanger and the indoor pipes; and an outdoor expansion valve installed in the liquid pipe.
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公开(公告)号:US11892209B2
公开(公告)日:2024-02-06
申请号:US17409929
申请日:2021-08-24
Applicant: LG ELECTRONICS INC.
Inventor: Jaehwa Jung , Yongcheol Sa , Chiwoo Song
CPC classification number: F25B41/24 , F24F11/36 , F25B40/02 , F25B41/31 , F25B49/022 , F25B41/20 , F25B2500/22 , F25B2500/222 , F25B2500/27 , F25B2600/0251 , F25B2600/2501 , F25B2600/2513 , F25B2600/2515 , F25B2600/2519
Abstract: A multi-air conditioner for heating and cooling may include at least one indoor unit, an outdoor unit, and at least one leak shut-off valve. The at least one indoor unit is installed in an indoor space and includes an indoor heat exchanger and an indoor expansion valve. The outdoor unit is connected to the at least one indoor unit via a refrigerant pipeline and includes an outdoor heat exchanger, a compressor, an outdoor expansion valve, and a four-way valve. The outdoor unit may decrease a pressure of the refrigerant pipeline when a refrigerant leak occurs from the refrigerant pipeline. The at least one leak shut-off valve is provided on the refrigerant pipeline and blocks a flow of refrigerant in the refrigerant pipeline when a refrigerant leak from the refrigerant pipeline occurs in the indoor space.
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公开(公告)号:US11614252B2
公开(公告)日:2023-03-28
申请号:US16875187
申请日:2020-05-15
Applicant: LG Electronics Inc.
Inventor: Jaehwa Jung , Yongcheol Sa
Abstract: An air conditioner includes an outdoor unit for circulating refrigerant, a plurality of indoor units for circulating water, and a heat exchange device configured to connect the outdoor unit to the plurality of indoor units and perform heat exchange between the refrigerant and the water. The heat exchange device includes a plurality of ports to which the plurality of indoor units are connected. The air conditioner further includes a controller configured to control flow of the water between the heat exchange device and the plurality of indoor units, and to search pipes respectively connected to the plurality of ports. The controller can control the flow of water such that water at a first temperature flows to some of the plurality of ports and the water at a second temperature lower than the first temperature flows to other some of the plurality of ports.
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