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公开(公告)号：US11698212B2
公开(公告)日：2023-07-11
申请号：US17370114
申请日：2021-07-08
Applicant: LG ELECTRONICS INC.
Inventor： Eunjun Cho , Jungmin Park , Pilhyun Yoon , Seongho Hong , Yejin Kim
CPC classification number: F25B43/043 , F25B13/00 , F25B39/00 , F25B41/31 , F25B2400/0403 , F25B2400/0409 , F25B2400/23
Abstract: An air conditioner may include a compressor that compresses refrigerant; a condenser that condenses the refrigerant; at least one expansion valve that expands the refrigerant; a gas-liquid separator that separates and discharges the refrigerant into gas refrigerant and liquid refrigerant; an evaporator that evaporates the liquid refrigerant discharged from the gas-liquid separator; a refrigerant inflow pipe that connects the expansion valve and the gas-liquid separator; a bypass pipe that connects the gas-liquid separator and the compressor; and a refrigerant discharge pipe that connects the gas-liquid separator and the evaporator. The gas-liquid separator may include a housing in which a portion of the refrigerant inflow pipe, the bypass pipe, and the refrigerant discharge pipe may be disposed, and first and second partition walls disposed in the housing.
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公开(公告)号：US11906208B2
公开(公告)日：2024-02-20
申请号：US17531307
申请日：2021-11-19
Applicant: LG ELECTRONICS INC.
Inventor： Yejin Kim , Jihyeong Ryu , Eunjun Cho , Pilhyun Yoon
CPC classification number: F25B13/00 , F24D3/18 , F25B2313/003 , F25B2313/0231 , F25B2313/0233 , F25B2313/02741 , F25B2313/0314
Abstract: A hybrid multi-air conditioning system with no receiver is provided for optimal valve control. The hybrid multi-air conditioning system includes: a hot-water unit for exchanging heat between refrigerant and water; at least one indoor unit installed indoors and comprising an indoor heat exchanger and an indoor unit expansion valve; and an outdoor unit connected to the indoor unit and the hot-water unit via a refrigerant pipeline and comprising an outdoor heat exchanger, a compressor, and an outdoor unit expansion valve, wherein, when an abnormal refrigerant enters either the at least one indoor unit or the outdoor unit according to an operation mode, the abnormal refrigerant is shut off from the hot-water unit and the at least one indoor unit or the outdoor unit which operates as a condenser. Accordingly, the hybrid multi-air conditioning system improves heat exchange efficiency via direct heat transfer between refrigerant and water by having a coil wound on the water tank to transfer heat between refrigerant and water.
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公开(公告)号：US11619425B2
公开(公告)日：2023-04-04
申请号：US17162785
申请日：2021-01-29
Applicant: LG ELECTRONICS INC.
Inventor： Youngmin Lee , Jihyeong Ryu , Eunjun Cho
IPC: F25B49/02 , F25B30/02 , F25B41/20 , F25B33/00 , F25B25/00 , F24D3/08 , F24D3/18 , F24D17/02 , F24D12/02
Abstract: A heat pump may include a compressor configured to compress a refrigerant, a first temperature sensor provided in heating pipes connected to a heating device that heats an indoor space to sense a temperature of fluid flowing through the heating pipes, and a controller. The controller may be configured to determine whether a boiler is operating to heat an indoor space or is operating to supply hot water based on a sensing value of the first temperature sensor. The compressor may operate when the controller determines that the boiler is not operating to heat the indoor space and/or determines that the boiler is operating to supply hot water.
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公开(公告)号：US11988424B2
公开(公告)日：2024-05-21
申请号：US17836133
申请日：2022-06-09
Applicant: LG ELECTRONICS INC.
Inventor： Eunjun Cho , Minsoo Kim , Hojin Seo , Dongkeun Yang
CPC classification number: F25B43/006 , F25B41/40 , F25B2400/04 , F25B2400/23 , F25B2500/26 , F25B2600/2501
Abstract: A device is provided that may include a compressor configured to compress a refrigerant, a condenser configured to condense the compressed refrigerant, an expander configured to expand the refrigerant condensed by the condenser, an evaporator configured to evaporate the refrigerant expanded by the expander, a separation mechanism connected to an outlet pipe of the evaporator to separate liquid refrigerant and gaseous refrigerant discharged from the evaporator, a bypass pipe to guide the gaseous refrigerant separated from the liquid refrigerant to the compressor, a first pipe connected to the separation mechanism and through which the liquid refrigerant discharged from the separation mechanism flows, an accumulator connected to the first pipe to separate the gaseous refrigerant, which is not separated from the liquid refrigerant by the separation mechanism, from the liquid refrigerant and discharge the separated gaseous refrigerant, and a second pipe configured to guide the gaseous refrigerant discharged from the accumulator to the compressor.
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公开(公告)号：US20230094976A1
公开(公告)日：2023-03-30
申请号：US17949532
申请日：2022-09-21
Applicant: LG Electronics Inc.
Inventor： Woojoo Choi , Yejin Kim , Eunjun Cho , Jihyeong Ryu
Abstract: An air conditioner and a method for controlling an air conditioner. The method may include detecting an outlet temperature of a compressor; detecting a change in temperature of a hot water supply pipe; determining a system error based on the outlet temperature of the compressor; and determining an abnormality in an adjustment valve based on the temperature of the hot water supply pipe when a system error is determined.
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Patent Agency Ranking
公开(公告)号：US11466908B2
公开(公告)日：2022-10-11
申请号：US16837469
申请日：2020-04-01
Applicant: LG Electronics Inc.
Inventor： Eunjun Cho , Pilhyun Yoon , Sungheon Ryu , Kiwoong Park , Jungmin Park , Hyungyul Yum , Yejin Kim
IPC: F25B13/00 , F25B39/00 , F25B40/02 , F25B41/385
Abstract: A heat exchanger includes heat exchange fins, refrigerant pipes are arranged across the heat exchange fins, and connecting pipes connected to the refrigerant pipes to thereby define refrigerant passages. The connecting pipes include a first pipe portion having a first end connected to one of the refrigerant pipes, a branch pipe portion that is branched from the first pipe portion, that extends parallel to the first pipe portion, and that is connected to another of the refrigerant passages, and a second pipe that is connected to the first pipe portion and that is configured to guide gas-phase refrigerant separated from the refrigerant in the first pipe portion. The second pipe includes an inner insert portion inserted into a second end of the first pipe portion and an outlet portion that extends from the inner insert portion in direction opposite to the second end of the first pipe portion.
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公开(公告)号：US20220163241A1
公开(公告)日：2022-05-26
申请号：US17531307
申请日：2021-11-19
Applicant: LG ELECTRONICS INC.
Inventor： Yejin Kim , Jihyeong Ryu , Eunjun Cho , Pilhyun Yoon
Abstract: A hybrid multi-air conditioning system with no receiver is provided for optimal valve control. The hybrid multi-air conditioning system includes: a hot-water unit for exchanging heat between refrigerant and water; at least one indoor unit installed indoors and comprising an indoor heat exchanger and an indoor unit expansion valve; and an outdoor unit connected to the indoor unit and the hot-water unit via a refrigerant pipeline and comprising an outdoor heat exchanger, a compressor, and an outdoor unit expansion valve, wherein, when an abnormal refrigerant enters either the at least one indoor unit or the outdoor unit according to an operation mode, the abnormal refrigerant is shut off from the hot-water unit and the at least one indoor unit or the outdoor unit which operates as a condenser. Accordingly, the hybrid multi-air conditioning system improves heat exchange efficiency via direct heat transfer between refrigerant and water by having a coil wound on the water tank to transfer heat between refrigerant and water.
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公开(公告)号：US20140366564A1
公开(公告)日：2014-12-18
申请号：US14364114
申请日：2012-12-14
Applicant: LG ELECTRONICS INC.
Inventor： Eunjun Cho , Beomsoo Seo
IPC: F24F11/00 , F24F11/053 , F24F11/02
CPC classification number: F24F11/30 , F24F1/50 , F24F1/56 , F24F11/74 , F24F11/81 , F24F2110/10 , F24F2140/20
Abstract: The present invention relates to an air-conditioning apparatus which is capable of performing a cooling operation in a stable manner in an environment having a low outside temperature. The air-conditioning apparatus according to the present invention comprises: a housing including an inlet, a bypass inlet, and an outlet; a fan configured to introduce air into the housing and discharge the air from the housing; a heat-exchange flow path deposed between the inlet and the outlet; a heat exchanger disposed at the heat exchange flow path; and a bypass flow path disposed between the bypass inlet and the outlet.
Abstract translation: 本发明涉及一种能够在外部温度低的环境中稳定地进行制冷运转的空调装置。 根据本发明的空调装置包括：壳体，包括入口，旁路入口和出口; 风扇，其构造成将空气引入所述壳体并从所述壳体排出空气; 在入口和出口之间放置的热交换流路; 设置在所述热交换流路上的热交换器; 以及设置在旁路入口和出口之间的旁通流路。
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公开(公告)号：US12228300B2
公开(公告)日：2025-02-18
申请号：US18112612
申请日：2023-02-22
Applicant: LG ELECTRONICS INC.
Inventor： Ilyoong Shin , Chiwoo Song , Ahrae Jo , Eunjun Cho
IPC: F24F11/43 , F24F1/0068 , F24F5/00 , F24F11/64 , F24F11/84 , F24F13/30 , F24F1/005 , F24F1/0063 , F24F110/10 , F24F140/20
Abstract: An air conditioner may include a case through which outdoor air flows into an indoor space is formed; a first heat exchanger that exchanges heat between the air and refrigerant; a second heat exchanger disposed downstream of the first heat exchanger, through which the refrigerant selectively flows, and that exchanges heat between the air and the refrigerant; a liquid pipe connected to each of the first and second heat exchangers; a high-pressure gas pipe connected to each of the first and second heat exchangers; a low-pressure gas pipe through which the gaseous refrigerant discharged from the first and second heat exchangers flows; a high-pressure gas pipe valve; a low-pressure gas pipe valve; an expansion valve installed in the liquid pipe; and a controller configured to control an opening degree of the low-pressure gas pipe valve, based on a temperature of the refrigerant flowing through the first heat exchanger.
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公开(公告)号：US11739993B2
公开(公告)日：2023-08-29
申请号：US17184156
申请日：2021-02-24
Applicant: LG ELECTRONICS INC.
Inventor： Jihyeong Ryu , Eunjun Cho , Minsoo Kim , Youngmin Lee , Hojin Seo
CPC classification number: F25B30/02 , F24D19/1006 , F24H15/16 , F25B49/022 , F25B2313/0315 , F25B2313/0316 , F25B2333/002 , F25B2333/003
Abstract: A heat pump may include a compressor configured to compress a refrigerant, a first temperature sensor configured to detect an outdoor temperature, a second temperature sensor provided in heating pipes connected to a heating device, and a controller. Based on a first sensing value of the first temperature sensor, the controller may be configured to control a compressor, control power to a boiler, and/or calculate an expected efficiency of the heat pump. Based on the expected efficiency and/or a second sensing value of a second temperature sensor, the controller may be configured to control power to the boiler.
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