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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
申请人： LG ELECTRONICS INC.
发明人： Eunjun Cho , Jungmin Park , Pilhyun Yoon , Seongho Hong , Yejin Kim
CPC分类号： F25B43/043 , F25B13/00 , F25B39/00 , F25B41/31 , F25B2400/0403 , F25B2400/0409 , F25B2400/23
摘要： 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
申请人： LG ELECTRONICS INC.
发明人： Yejin Kim , Jihyeong Ryu , Eunjun Cho , Pilhyun Yoon
CPC分类号： F25B13/00 , F24D3/18 , F25B2313/003 , F25B2313/0231 , F25B2313/0233 , F25B2313/02741 , F25B2313/0314
摘要： 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
申请人： LG ELECTRONICS INC.
发明人： Youngmin Lee , Jihyeong Ryu , Eunjun Cho
IPC分类号： F25B49/02 , F25B30/02 , F25B41/20 , F25B33/00 , F25B25/00 , F24D3/08 , F24D3/18 , F24D17/02 , F24D12/02
摘要： 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：US11739993B2
公开(公告)日：2023-08-29
申请号：US17184156
申请日：2021-02-24
申请人： LG ELECTRONICS INC.
发明人： Jihyeong Ryu , Eunjun Cho , Minsoo Kim , Youngmin Lee , Hojin Seo
CPC分类号： F25B30/02 , F24D19/1006 , F24H15/16 , F25B49/022 , F25B2313/0315 , F25B2313/0316 , F25B2333/002 , F25B2333/003
摘要： 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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公开(公告)号：US11649971B2
公开(公告)日：2023-05-16
申请号：US16660181
申请日：2019-10-22
申请人： LG Electronics Inc.
发明人： Minsoo Kim , Jihyeong Ryu , Youngmin Lee , Eunjun Cho
CPC分类号： F24D17/0036 , F24D19/1054 , F24H1/205 , F24H4/04 , F24H8/00
摘要： A heat pump boiler is disclosed. The heat pump boiler includes a compressor. The heat pump boiler further includes an exterior heat exchanger that is configured to transfer heat between refrigerant and exterior air. The heat pump boiler further includes an interior heat exchanger that is configured to transfer heat between refrigerant and water. The heat pump boiler further includes a channel change valve that is configured to provide refrigerant compressed by the compressor to the exterior heat exchanger or the interior heat exchanger. The heat pump boiler further includes a first boiler heat exchanger that is configured to heat water that has passed through the interior heat exchanger from heat generated through combustion. The heat pump boiler further includes a second boiler heat exchanger that is configured to transfer heat between refrigerant and gas discharged from the first boiler heat exchanger.
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公开(公告)号：US11624532B2
公开(公告)日：2023-04-11
申请号：US17184059
申请日：2021-02-24
申请人： LG ELECTRONICS INC.
发明人： Jihyeong Ryu , Eunjun Cho , Minsoo Kim , Youngmin Lee , Hojin Seo
摘要： 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 that performs indoor heating and configured to detect a temperature of fluid flowing through the heating pipes, an outdoor heat exchanger configured to perform heat exchange between outdoor air and a refrigerant, a third temperature sensor configured to detect a temperature of the outdoor heat exchanger, and a controller. The controller may be configured to: control power to a boiler and/or to the compressor based on sensing values of the first, second, and third temperature sensors, calculate an expected efficiency of the heat pump based on the sensing value of the first temperature sensor and an initial target temperature, and control power to the boiler based on the expected efficiency.
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公开(公告)号：US11441793B2
公开(公告)日：2022-09-13
申请号：US16678510
申请日：2019-11-08
申请人： LG Electronics Inc.
发明人： Eunjun Cho , Kiwoong Park , Hyungyul Yum , Pilhyun Yoon
IPC分类号： F24F1/16 , F24F11/81 , F24F1/0068 , F24F1/0003 , F24F1/08 , F24F1/14 , F25B41/20
摘要： Provided is an air conditioner capable of improving heating performance in a cold region by reducing a refrigerant pressure loss in an outdoor heat exchanger in a heating operation. The air conditioner includes a compressor, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger. The outdoor heat exchanger may include a plurality of unit channels into which a refrigerant channel is partitioned, and a separating device installed in each of the plurality of unit channels and configured to separate a liquid refrigerant component and a vapor refrigerant component in each of the plurality of unit channels in a heating operation. The air conditioner may further include a compressor suction channel connecting a heating-operation outlet of the outdoor heat exchanger and an inlet of the compressor, and a bypass pipe connecting the separating device and the compressor suction channel.
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公开(公告)号：US20220011029A1
公开(公告)日：2022-01-13
申请号：US17370114
申请日：2021-07-08
申请人： LG ELECTRONICS INC.
发明人： Eunjun Cho , Jungmin Park , Pilhyun Yoon , Seongho Hong , Yejin Kim
摘要： An air conditioner is provided that may include a compressor that compresses a refrigerant; a condenser that condenses the refrigerant discharged from the compressor; at least one expansion valve that expands the refrigerant passing through the condenser; a gas-liquid separator, through which the refrigerant passed through the at least one expansion valve flows, 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 each of the refrigerant inflow pipe, the bypass pipe, and the refrigerant discharge pipe may be disposed; a first partition wall, which is disposed in an internal space of the housing and includes a first opening formed by cutting out a portion of an outer surface thereof disposed adjacent to the refrigerant inflow pipe, and a second partition wall, which is spaced apart from the first partition wall and disposed in the internal space of the housing and includes a second opening formed by cutting out a portion of an outer surface thereof disposed adjacent to the refrigerant discharge pipe.
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公开(公告)号：US10161656B2
公开(公告)日：2018-12-25
申请号：US14688246
申请日：2015-04-16
申请人： LG ELECTRONICS INC.
发明人： Eunjun Cho , Beomsoo Seo , Kiwoong Park
摘要： An air conditioner includes a heat exchanger including a plurality of refrigerant tubes, a distributor disposed on one side of the heat exchanger to divide a refrigerant so that the refrigerant flows into a plurality of flow paths, a plurality of capillary tubes extending from the distributor toward the plurality of refrigerant tubes, a guide tube guiding an introduction of the refrigerant into the distributor, an inlet tube connected to an inlet-side of the distributor, and a bending part disposed between the guide tube and the inlet tube to switch a flow direction of the refrigerant. The inlet tube extends in a horizontal direction or an inclined direction to guide a liquid refrigerant of a two-phase liquid refrigerant so that the liquid refrigerant flows into a lower portion of the inlet tube.
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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
申请人： LG ELECTRONICS INC.
发明人： Eunjun Cho , Minsoo Kim , Hojin Seo , Dongkeun Yang
CPC分类号： F25B43/006 , F25B41/40 , F25B2400/04 , F25B2400/23 , F25B2500/26 , F25B2600/2501
摘要： 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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