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公开(公告)号：US20240133602A1
公开(公告)日：2024-04-25
申请号：US18380267
申请日：2023-10-15
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：US10544952B2
公开(公告)日：2020-01-28
申请号：US15762196
申请日：2016-05-09
Applicant: LG ELECTRONICS INC.
Inventor： Jiyoung Jang , Pilhyun Yoon , Kakjoong Kim , Yongcheol Sa
IPC: F24F11/30 , F24F11/72 , F24F1/0003 , F24F110/12 , F24F110/20
Abstract: An air conditioner and a method of controlling the same are disclosed. The air conditioner includes a controller configured to determine a target evaporation pressure based on information sensed by an outdoor temperature sensor. The controller determines whether the determined target evaporation pressure is changed, based on a difference between a value sensed by an indoor temperature sensor and a set temperature of an indoor space and a value sensed by an indoor humidity sensor.
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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：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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Patent Agency Ranking
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：US20240142131A1
公开(公告)日：2024-05-02
申请号：US18384084
申请日：2023-10-26
Applicant: LG Electronics Inc.
Inventor： Daehyoung KIM , Yongcheol SA , Jiyoung Jang , Chiwoo Song , Jisung Lee
IPC: F24F11/84 , F24F1/0035 , F24F11/46 , F24F11/63
CPC classification number: F24F11/84 , F24F1/0035 , F24F11/46 , F24F11/63 , F24F2140/12
Abstract: An air conditioner is provided that may include an outdoor unit provided with a compressor; a plurality of indoor units connected to the outdoor unit, each having an indoor heat exchanger, and each disposed in a different space; a low pressure pipe that connects the indoor heat exchanger and the compressor and in which low pressure gaseous refrigerant flows; a switching device provided with a low pressure valve disposed between the indoor heat exchanger and the low pressure pipe; an indoor temperature sensor that measures a temperature of a space in which an indoor unit of the respective indoor unit is disposed; and a controller that is electrically connected to the indoor temperature sensor and adjusts an opening degree of the low pressure valve. The controller may adjust the opening degree of the low pressure valve based on a difference between a value measured by the indoor temperature sensor and a previously input set temperature. By increasing an evaporation pressure in the indoor unit, noise from the air conditioner may be suppressed or prevented and comfort improved.
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公开(公告)号：US11898782B2
公开(公告)日：2024-02-13
申请号：US17474346
申请日：2021-09-14
Applicant: LG ELECTRONICS INC.
Inventor： Chiwoo Song , Yongcheol Sa , Jiyoung Jang
CPC classification number: F25B41/40 , F25B41/24 , F25B49/02 , F25B2345/002 , F25B2500/222 , F25B2600/2515
Abstract: A multi-air conditioner for heating/cooling operation may include: at least one indoor unit which is installed in a room, and includes an indoor heat exchanger; an outdoor unit which is connected to the indoor unit through a refrigerant pipe, and includes an outdoor heat exchanger, a compressor, an outdoor expansion valve, and a four-way valve; at least one leakage blocking valve which is formed on the refrigerant pipe, and blocks a refrigerant flow in the refrigerant pipe when a refrigerant leak occurs from the refrigerant pipe in the room; and a buffer unit which is installed on the refrigerant pipe between the indoor unit and the outdoor unit, and collects refrigerant leaking from the refrigerant pipe. Accordingly, when the refrigerant leaks into the room, it is possible to minimize the amount of the leaking refrigerant by collecting the refrigerant in the buffer tank.
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公开(公告)号：US11486591B2
公开(公告)日：2022-11-01
申请号：US16963300
申请日：2019-01-18
Applicant: LG ELECTRONICS INC.
Inventor： Eunjun Cho , Minsoo Kim , Hyungyul Yum , Jiyoung Jang
Abstract: A multi-type air conditioner is provided including an outdoor unit and a plurality of indoor units connected to the outdoor unit by a liquid pipe and a gas pipe. The plurality of indoor units includes a first indoor unit including first and second heat exchangers and first and second heat exchanger connecting pipes, and a second indoor unit. An indoor heat exchanger connecting pipe connects the first and second indoor units, and a liquid pipe connecting tube connects the first indoor unit and the liquid pipe. Opening amounts of a first indoor expansion valve, and first and second bypass expansion valves provided in the first indoor unit are opened selectively to operate the first heat exchanger as a condenser and the second heat exchanger as an evaporator to continuously drive a dehumidification mode while maintaining a room temperature within a predefined range.
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公开(公告)号：US11448408B2
公开(公告)日：2022-09-20
申请号：US16962929
申请日：2019-01-18
Applicant: LG ELECTRONICS INC.
Inventor： Eunjun Cho , Yongcheol Sa , Jiyoung Jang
Abstract: A multi-type air conditioner is provided that includes an outdoor unit having a liquid pipe through which a liquid refrigerant flows, and a gas pipe through which a gas refrigerant flows; a plurality of indoor units including a first indoor unit and a second indoor unit each connected to the liquid pipe and the gas pipe to circulate a refrigerant; a gas pipe connecting tube connecting the gas pipe and the plurality of indoor units so that a gas refrigerant flows therethrough; and a liquid pipe connecting tube connecting the liquid pipe and the plurality of indoor units so that a liquid refrigerant flows therethrough.
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