-
公开(公告)号：US12270580B2
公开(公告)日：2025-04-08
申请号：US18015569
申请日：2021-07-12
Applicant: LG ELECTRONICS INC.
Inventor： Jihyeong Ryu , Eunjun Cho , Minsoo Kim , Youngmin Lee , Hojin Seo
Abstract: A heat pump and a control method thereof are provided. The heat pump includes an outdoor unit includes a compressor that compresses a first refrigerant, a first outdoor heat exchanger that exchanges heat between the first refrigerant and outdoor air, an expansion mechanism that expands the first refrigerant, and a second outdoor heat exchanger that exchanges heat between the first refrigerant and a second refrigerant; a first refrigerant pipe that connects the compressor, the first outdoor heat exchanger, and the expansion mechanism, and through which the first refrigerant flows; a pressure sensor disposed in the first refrigerant pipe; a second refrigerant pipe connected to the second outdoor heat exchanger, and through which the second refrigerant flows; an indoor heat exchanger that is disposed in the second refrigerant pipe, and exchanges heat between indoor air and the second refrigerant; and a controller that determines a supply of the second refrigerant by determining a flow rate of the second refrigerant based on surging occurring in a pressure of the first refrigerant measured by the pressure sensor, so that the flow rate of the second refrigerant flowing through the second refrigerant pipe is determined only by the pressure value of the first refrigerant measured by the pressure sensor disposed in the first pipe, thereby determining the flow rate of the second refrigerant without a separate flow sensor.
-
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.
-
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.
-
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.
-
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.
-
Patent Agency Ranking
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。
-
公开(公告)号：US20250123019A1
公开(公告)日：2025-04-17
申请号：US18917628
申请日：2024-10-16
Applicant: LG ELECTRONICS INC.
Inventor： Minsoo Kim , Eunjun Cho , Yejin Kim
IPC: F24F11/84
Abstract: An air conditioner of an embodiment of the present disclosure includes: a compressor; a first heat exchanger for heat-exchanging a refrigerant flowing from the compressor; a second heat exchanger for heat-exchanging the refrigerant flowing from the compressor; and a switching valve for sending the refrigerant discharged from the compressor to the first heat exchanger or the second heat exchanger. The first heat exchanger includes: a first refrigerant pipe; a second refrigerant pipe connected to the first refrigerant pipe; a third refrigerant pipe connected to the first refrigerant pipe and connected in parallel to the second refrigerant pipe; a connection band connecting the first refrigerant pipe, the second refrigerant pipe, and the third refrigerant pipe; and a separation tube connected to one side of the connection band so that a portion of the refrigerant flowing from the first refrigerant pipe flows. The connection band includes a first connection port connected to the first refrigerant pipe, a first branch port connected to the second refrigerant pipe, and a second branch port connected to the third refrigerant pipe. The separation tube is inserted into an inner side of the connection band by a predetermined length or more.
-
公开(公告)号：US12123606B2
公开(公告)日：2024-10-22
申请号：US17801956
申请日：2021-02-24
Applicant: LG ELECTRONICS INC.
Inventor： Seongho Hong , Eunjun Cho , Hojin Seo
IPC: F24F11/36
CPC classification number: F24F11/36
Abstract: A heat pump including a housing configured to be disposed outdoors; a compressor that compresses a refrigerant; a fluid refrigerant heat exchanger configured to perform heat exchange between the refrigerant and a fluid; an outdoor heat exchanger configured to perform heat exchange between the refrigerant and outdoor air; a pressure sensor configured to detect a pressure of the refrigerant flowing between the compressor and the fluid refrigerant heat exchanger; a first shut-off valve disposed in a pipe connected to a discharge of the compressor; a second shut-off valve disposed between the outdoor heat exchanger and the compressor; and a controller configured to: determine whether the refrigerant leaks, control the first shut-off valve to be closed, when the refrigerant leaks, and control the second shutoff valve to be closed, when the pressure sensed by the pressure sensor is less than a predetermined reference pressure.
-
公开(公告)号：US20240068686A1
公开(公告)日：2024-02-29
申请号：US18112612
申请日：2023-02-22
Applicant: LG ELECTRONICS INC.
Inventor： Ilyoong SHIN , Chiwoo Song , Ahrae Jo , Eunjun Cho
CPC classification number: F24F11/43 , F24F1/0068 , F24F5/0035 , F24F11/64 , F24F11/84 , F24F13/30 , F24F1/005
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.
-
公开(公告)号：US11680740B2
公开(公告)日：2023-06-20
申请号：US17067042
申请日：2020-10-09
Applicant: LG Electronics Inc.
Inventor： Eungsu Kim , Eunjun Cho , Sungheon Ryu , Jusang Kim
CPC classification number: F25B49/02 , F25B39/00 , F25B40/02 , F25B41/22 , F25B41/40 , F25B2400/0409 , F25B2400/23 , F25B2600/2515 , F25B2700/13 , F25B2700/2106 , F25B2700/2115 , F25B2700/2116
Abstract: Provided is a gas-liquid separator, including a connection pipe connected to a refrigerant pipe in the evaporator, the refrigerant pipe in which a two-phase refrigerant flows, a header connected to the connection pipe, wherein a gas refrigerant separated from the two-phase refrigerant flows inside the header, a bypass pipe connected to the header to guide a flow of the gas refrigerant to a compressor, a flow rate control valve installed at the bypass pipe, and a controller configured to control opening and closing of the flow rate control valve based on whether a preset condition is satisfied.
-
-
-
-
-
-
-
-
-
Search Results
25
records
(took 0.041 seconds)
