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公开(公告)号：US20210231317A1
公开(公告)日：2021-07-29
申请号：US17143310
申请日：2021-01-07
Applicant: LG ELECTRONICS INC.
Inventor： Kakjoong KIM , Chiwoo SONG , IIyoong SHIN , Yongcheol SA
Abstract: An air conditioning apparatus may include an outdoor unit through which a first fluid, such as refrigerant circulates, an indoor unit through which a second fluid, such as water circulates, a heat exchange device which is configured to connect the outdoor unit to the indoor unit and in which the first fluid and the second fluid are heat-exchanged with each other, a first inner tube which is configured to connect the outdoor unit to the heat exchange device and through which the first fluid at high-pressure flows, a second inner tube which is configured to connect the outdoor unit to the heat exchange device and through which the first fluid at low-pressure flows, and a third inner tube which is configured to connect the outdoor unit to the heat exchange device and through which the first fluid in liquid form flows. The heat exchange device may include a bypass tube configured to bypass the second inner tube and a flow control valve provided in the bypass tube.
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公开(公告)号：US20180283751A1
公开(公告)日：2018-10-04
申请号：US15764113
申请日：2016-09-12
Applicant: LG ELECTRONICS INC.
Inventor： Chiwoo SONG , Pilhyun YOON , Kakjoong KIM , Jaehwa JUNG
CPC classification number: F25B49/02 , F25B13/00 , F25B47/022 , F25B2400/0409 , F25B2400/0411 , F25B2500/19 , F25B2600/2501 , F25B2700/151 , F25B2700/1933 , F25B2700/2101 , F25D21/06
Abstract: An air conditioner and a control method for an air conditioner are provided. The air conditioner may include a compressor, a flow switch installed at an outlet side of the compressor, a first guide pipe extending from the flow switch to an outdoor heat exchanger, a second guide pipe extending from the flow switch to an indoor unit, a third guide pipe extending from the outdoor heat exchanger to the indoor unit, a bypass passage extending from the second guide pipe to the third guide pipe to allow at least a portion of the refrigerant in the second guide pipe to be bypassed to the third guide pipe or to allow at least a portion of the refrigerant in the third guide pipe to be bypassed to the second guide pipe, and a bypass valve installed on the bypass passage.
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公开(公告)号：US20170108250A1
公开(公告)日：2017-04-20
申请号：US15296649
申请日：2016-10-18
Applicant: LG ELECTRONICS INC.
Inventor： Chiwoo SONG , Pilhyun YOON , Kakjoong KIM , Jaehwa JUNG
CPC classification number: F25B13/00 , F25B5/02 , F25B6/04 , F25B41/003 , F25B49/02 , F25B2313/007 , F25B2313/021 , F25B2313/023 , F25B2313/0252 , F25B2313/0253 , F25B2313/0254 , F25B2341/066 , F25B2400/0409 , F25B2400/23 , F25B2500/28 , F25B2600/2501 , F25B2600/2503
Abstract: An air conditioner is provided that may include at least one compressor that compresses a refrigerant to a high pressure; a plurality of heat exchanger that condenses the refrigerant compressed in the at least one compressor; a plurality of outdoor valves, respectively, provided at an outlet side pipe of the plurality of heat exchangers; a gas liquid separator that separates the refrigerant into gas and liquid refrigerants and supplies the gas refrigerant to the at least one compressor; and one or more bypass devices connected to the outlet side pipe of one or more of the plurality of heat exchangers and an inlet side pipe of the gas liquid separator, the one or more bypass devices controlling a flow of the liquid refrigerant. During a cooling low load operation in which a portion of the plurality of heat exchangers is operating, a liquid refrigerant loaded into a heat exchanger of the plurality of heat exchangers, which is not operated, may flow through the one or more bypass device.
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公开(公告)号：US20230074034A1
公开(公告)日：2023-03-09
申请号：US17797428
申请日：2020-11-13
Applicant: LG ELECTRONICS INC.
Inventor： IIyoong SHIN , Yongcheol SA , Chiwoo SONG , Kakjoong KIM
Abstract: An air conditioner includes an outdoor unit in which a refrigerant circulates; an indoor unit in which water circulates; a heat exchange device including a heat exchanger that connects the outdoor unit to the indoor unit and performs heat exchange between the refrigerant and the water; a first outdoor unit connection pipe configured to connect the outdoor unit and the heat exchange device, a high-pressure gaseous refrigerant flowing in the first outdoor unit connection pipe; a second outdoor unit connection pipe configured to connect the outdoor unit and the heat exchange device, a low-pressure gaseous refrigerant flowing in the second outdoor unit connection pipe; a third outdoor unit connection pipe configured to connect the outdoor unit and the heat exchange device, a liquid refrigerant lowing in the third outdoor unit connection pipe; a bypass pipe configured to communicate the third outdoor unit connection pipe and the second outdoor unit connection pipe; and a bypass valve provided in the bypass pipe.
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公开(公告)号：US20210231352A1
公开(公告)日：2021-07-29
申请号：US17134747
申请日：2020-12-28
Applicant: LG ELECTRONICS INC.
Inventor： Kakjoong KIM , Chiwoo SONG , Ilyoong SHIN , Yongcheol SA
Abstract: An air conditioning apparatus may include an outdoor unit through which a first fluid, such as refrigerant circulates, an indoor unit through which a second fluid, such as water circulates, a heat exchange device which is configured to connect the outdoor unit to the indoor unit and in which the first fluid and the second fluid are heat-exchanged with each other, first to third inner tubes configured to connect the outdoor unit to the heat exchange device, and a heat storage unit connected to the first to third inner tubes.
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Patent Agency Ranking
公开(公告)号：US20250067485A1
公开(公告)日：2025-02-27
申请号：US18811217
申请日：2024-08-21
Applicant: LG Electronics Inc.
Inventor： Eunjun CHO , Junseong PARK , Kakjoong KIM , Hyungjoon KIM , Dongkeun YANG
Abstract: The present disclosure relates to an oil separator. The oil separator according to the present disclosure includes: a body having a space therein; a refrigerant discharge pipe connected to one side of the body, and discharging refrigerant which exists in the space; a supply pipe connected to the other side of the body, and sending refrigerant including ejected from a compressor to the space; and an oil discharge pipe connected to another side of the body, and discharging oil which exists in the space. The supply pipe includes a first inner supply pipe extended from a circumferential surface of the body to an inside having the space, and a second inner supply pipe disposed in the space, disposed to be spaced apart from the circumferential surface of the body, and having a form bent in a central direction of the body.
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公开(公告)号：US20210199350A1
公开(公告)日：2021-07-01
申请号：US17088773
申请日：2020-11-04
Applicant: LG ELECTRONICS INC.
Inventor： Chiwoo SONG , Yongcheol SA , Kakjoong KIM , Ilyoong SHIN
Abstract: Provided is an air conditioning apparatus. The air conditioning apparatus includes a heat exchanger in which the refrigerant and the water are heat-exchanged with each other, a high-pressure guide tube extending from a high-pressure gas tube of an outdoor unit so as to be connected to one side of the heat exchanger, a low-pressure guide tube extending from a low-pressure gas tube of the outdoor unit so as to be combined with the high-pressure guide tube, a liquid guide tube extending from a liquid tube of the outdoor unit so as to be connected to the other side of the heat exchanger, a bypass tube configured to connect a bypass branch point of the high-pressure gas tube to a bypass combination point of the liquid guide tube to bypass a high-pressure refrigerant existing in the high-pressure tube to the liquid guide tube, and a bypass valve installed in the bypass tube.
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公开(公告)号：US20170219264A1
公开(公告)日：2017-08-03
申请号：US15415255
申请日：2017-01-25
Applicant: LG ELECTRONICS INC.
Inventor： Chiwoo SONG , Pilhyun YOON , Kakjoong KIM , Jaehwa JUNG
CPC classification number: F25B47/006 , F25B13/00 , F25B39/00 , F25B41/04 , F25B47/022 , F25B2313/005 , F25B2313/006 , F25B2313/0251 , F25B2313/02522 , F25B2313/0253 , F25B2313/02532 , F25B2313/02533 , F25B2313/02541 , F25B2313/02741 , F25B2313/0315 , F25B2400/075 , F25B2600/2501 , F25B2700/2117
Abstract: An air conditioner including a hot gas line for receiving a portion of refrigerant compressed in a compressor, an indoor heat exchanger, an outdoor expansion device for expanding the refrigerant having exchanged heat in the indoor heat exchanger, an outdoor heat exchanger functioning as a condenser in a cooling mode while functioning as an evaporator in a heating mode, and a 4-way valve for receiving a remaining portion of the compressed refrigerant, to guide the refrigerant emerging from the compressor to the outdoor heat exchanger in the cooling mode and to the indoor heat exchanger in the heating mode. The outdoor heat exchanger includes a main heat exchanger section functioning as a condenser in the cooling mode while functioning as an evaporator in the heating mode, and an auxiliary heat exchanger for receiving the refrigerant from the hot gas line in a frosting prevention mode.
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公开(公告)号：US20210239375A1
公开(公告)日：2021-08-05
申请号：US17089855
申请日：2020-11-05
Applicant: LG ELECTRONICS INC.
Inventor： Kakjoong KIM , Chiwoo Song , Ilyoong Shin , Yongcheol SA
IPC: F25B41/04
Abstract: Provided is an air conditioning apparatus. The air conditioning apparatus includes an outdoor unit through which a refrigerant is circulated, an indoor unit through which water is circulated, and a heat exchange device including a heat exchanger in which the refrigerant and the water are heat-exchanged with each other. The heat exchanger includes a high-pressure guide tube, a low-pressure guide tube, a liquid guide tube, a bypass tube configured to connect a bypass branch point of the high-pressure gas tube of the outdoor unit to a bypass combination point of the liquid guide tube to bypass a high-pressure refrigerant existing in the high-pressure tube to the liquid guide tube, and a bypass valve installed in the bypass tube. The outdoor unit includes a first valve device configured to guide a refrigerant compressed in the compressor to the outdoor heat exchanger and a second valve device configured to guide the refrigerant compressed in the compressor to the high-pressure guide tube of the heat exchange device.
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公开(公告)号：US20180259207A1
公开(公告)日：2018-09-13
申请号：US15762196
申请日：2016-05-09
Applicant: LG ELECTRONICS INC.
Inventor： Jiyoung JANG , Pilhyun YOON , Kakjoong KIM , Yongcheol SA
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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