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公开(公告)号：US11415374B2
公开(公告)日：2022-08-16
申请号：US16660372
申请日：2019-10-22
Applicant: LG Electronics Inc.
Inventor： Minsoo Kim , Jihyeong Ryu , Youngmin Lee , Eunjun Cho
Abstract: A hybrid heating system is disclosed. The hybrid heating system includes a compressor that is configured to compress refrigerant. The hybrid heating system further includes a first heat exchanger that is configured to adjust a temperature of water by exchanging heat between the water and refrigerant compressed by the compressor. The hybrid heating system further includes a second heat exchanger that is configured to evaporate refrigerant by exchanging heat exchange with exterior air. The hybrid heating system further includes a first boiler heat exchanger that is configured to increase a temperature of water using heat generated by combustion. The hybrid heating system further includes a second boiler heat exchanger that is configured to exchange heat between exhaust gas discharged from the first boiler heat exchanger and refrigerant flowing into the second heat exchanger.
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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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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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Patent Agency Ranking
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：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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公开(公告)号：US11649971B2
公开(公告)日：2023-05-16
申请号：US16660181
申请日：2019-10-22
Applicant: LG Electronics Inc.
Inventor： Minsoo Kim , Jihyeong Ryu , Youngmin Lee , Eunjun Cho
CPC classification number: F24D17/0036 , F24D19/1054 , F24H1/205 , F24H4/04 , F24H8/00
Abstract: 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
Applicant: LG ELECTRONICS INC.
Inventor： Jihyeong Ryu , Eunjun Cho , Minsoo Kim , Youngmin Lee , Hojin Seo
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 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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