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公开(公告)号：US11953222B2
公开(公告)日：2024-04-09
申请号：US17293249
申请日：2019-10-25
Applicant: LG ELECTRONICS INC.
Inventor： Daehyoung Kim , Donghwi Kim , Jaehwa Jung
IPC: F24F11/64 , F24F11/77 , F24F110/40
CPC classification number: F24F11/64 , F24F11/77 , F24F2110/40
Abstract: The present disclosure is to provide an air conditioner, capable of performing constant air volume control regardless of the variation in a supply voltage and a method for operating the same.
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公开(公告)号：US11300337B2
公开(公告)日：2022-04-12
申请号：US16482788
申请日：2018-02-01
Applicant: LG ELECTRONICS INC.
Inventor： Jaehwa Jung , Daehyoung Kim , Junseong Park , Pilhyun Yoon
Abstract: An outdoor system for an air conditioner may include at least one outdoor unit, the at least one outdoor unit including a compressor; an outdoor heat exchanger; a pair of two-stage compression lines that extends to outside of the outdoor system; a pair of connection lines that extends to the outside of the outdoor system and communicates with an indoor unit; and multiple valves that open/close the pair of two-stage compression lines and the pair of connection lines when the outdoor system is operated in a one-stage heating mode or a two-stage heating mode.
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公开(公告)号：US12111082B2
公开(公告)日：2024-10-08
申请号：US17792489
申请日：2020-11-18
Applicant: LG ELECTRONICS INC.
Inventor： Jaehwa Jung , Yongcheol Sa
IPC: F25B13/00
CPC classification number: F25B13/00 , F25B2313/003 , F25B2313/007 , F25B2313/0233 , F25B2313/02732
Abstract: Provided is an air conditioning apparatus. The air conditioning apparatus includes an outdoor unit through which a refrigerant circulates, a plurality of indoor units through which water circulates, the plurality of indoor units comprising a first indoor heat exchanger and a second indoor heat exchanger, and a heat-exchange device configured to connect the outdoor unit to the indoor unit, the heat exchange device including a first heat exchanger and a second heat exchanger, in which the refrigerant and water are heat exchanged with each other. The heat exchange device includes a first inflow tube extending from the first indoor heat exchanger toward the first heat exchanger to guide a flow of the water, a second inflow tube extending from the second indoor heat exchanger toward the second heat exchanger to guide the flow of the water, a first pump provided in the first inflow tube and a second pump provided in the second inflow tube. When a portion of the indoor unit performs a heating operation, and the other portion of the indoor unit performs a cooling operation, when a total capacity required for the indoor unit is equal to or less than a set capacity, the first pump or the second pump operates, and when the total capacity required for the indoor unit exceeds the set capacity, the first pump and the second pump operate.
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公开(公告)号：US11892209B2
公开(公告)日：2024-02-06
申请号：US17409929
申请日：2021-08-24
Applicant: LG ELECTRONICS INC.
Inventor： Jaehwa Jung , Yongcheol Sa , Chiwoo Song
CPC classification number: F25B41/24 , F24F11/36 , F25B40/02 , F25B41/31 , F25B49/022 , F25B41/20 , F25B2500/22 , F25B2500/222 , F25B2500/27 , F25B2600/0251 , F25B2600/2501 , F25B2600/2513 , F25B2600/2515 , F25B2600/2519
Abstract: A multi-air conditioner for heating and cooling may include at least one indoor unit, an outdoor unit, and at least one leak shut-off valve. The at least one indoor unit is installed in an indoor space and includes an indoor heat exchanger and an indoor expansion valve. The outdoor unit is connected to the at least one indoor unit via a refrigerant pipeline and includes an outdoor heat exchanger, a compressor, an outdoor expansion valve, and a four-way valve. The outdoor unit may decrease a pressure of the refrigerant pipeline when a refrigerant leak occurs from the refrigerant pipeline. The at least one leak shut-off valve is provided on the refrigerant pipeline and blocks a flow of refrigerant in the refrigerant pipeline when a refrigerant leak from the refrigerant pipeline occurs in the indoor space.
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公开(公告)号：US11614252B2
公开(公告)日：2023-03-28
申请号：US16875187
申请日：2020-05-15
Applicant: LG Electronics Inc.
Inventor： Jaehwa Jung , Yongcheol Sa
Abstract: An air conditioner includes an outdoor unit for circulating refrigerant, a plurality of indoor units for circulating water, and a heat exchange device configured to connect the outdoor unit to the plurality of indoor units and perform heat exchange between the refrigerant and the water. The heat exchange device includes a plurality of ports to which the plurality of indoor units are connected. The air conditioner further includes a controller configured to control flow of the water between the heat exchange device and the plurality of indoor units, and to search pipes respectively connected to the plurality of ports. The controller can control the flow of water such that water at a first temperature flows to some of the plurality of ports and the water at a second temperature lower than the first temperature flows to other some of the plurality of ports.
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Patent Agency Ranking
公开(公告)号：US11359842B2
公开(公告)日：2022-06-14
申请号：US16785404
申请日：2020-02-07
Applicant: LG Electronics Inc.
Inventor： Donghwi Kim , Yongcheol Sa , Jaehwa Jung , Daehyoung Kim
Abstract: An air conditioning apparatus includes: an outdoor unit configured to circulated refrigerant; a first pipe and a second pipe that are connected to the outdoor unit; an indoor unit configured to circulate water; and a heat exchange device that connects the outdoor unit to the indoor unit. The heat exchange device includes a first heat exchanger and a second heat exchanger that are each configured to perform heat exchange between the refrigerant and the water, a plurality of connection pipes, a bypass pipe configured to guide the refrigerant passing through the first heat exchanger to the second heat exchanger, and a bypass valve installed at the bypass pipe.
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公开(公告)号：US11079129B2
公开(公告)日：2021-08-03
申请号：US16486081
申请日：2018-02-06
Applicant: LG Electronics Inc.
Inventor： Daehyoung Kim , Junseong Park , Jaehwa Jung
Abstract: An air conditioner is disclosed. The air conditioner comprises: an indoor unit having an indoor heat exchanger installed therein; a first outdoor unit having a first outdoor heat exchanger and a first compressor installed therein; a second outdoor unit having a second outdoor heat exchanger and a second compressor installed therein; an auxiliary module which connects the indoor unit, the first outdoor unit, and the second outdoor unit; a first connection line by which the auxiliary module is connected to the first outdoor unit; a second connection line by which the auxiliary module is connected to the second outdoor unit; and a two-stage compression line by which the first outdoor unit is connected to the second outdoor unit.
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公开(公告)号：US10006647B2
公开(公告)日：2018-06-26
申请号：US14582450
申请日：2014-12-24
Applicant: LG ELECTRONICS INC.
Inventor： Jaehwa Jung , Chiwoo Song , Kakjoong Kim
CPC classification number: F24F3/065 , F25B13/00 , F25B2313/005 , F25B2313/006 , F25B2313/0231 , F25B2313/0233 , F25B2313/0252 , F25B2313/0253 , F25B2313/0272 , F25B2313/02741 , F25B2700/21152
Abstract: An air conditioning system may include an outdoor device disposed in an outdoor space, the outdoor device including a compressor and an outdoor heat exchanger, a plurality of indoor devices disposed in an indoor space, the plurality of indoor devices including an indoor heat exchanger, and a distributor that distributes and introduces a refrigerant into the plurality of indoor devices. The outdoor device may include an outdoor branch branched into a plurality of refrigerant paths, a first outdoor tube that extends from the outdoor branch to guide the refrigerant to a first heat exchanger of the outdoor heat exchanger, a second outdoor tube that extends from the outdoor branch to guide the refrigerant to a second heat exchanger of the outdoor heat exchanger, and a bypass tube that extends from the outdoor branch to allow the refrigerant to bypass the outdoor heat exchanger, thereby guiding the refrigerant to the compressor.
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公开(公告)号：US09861008B2
公开(公告)日：2018-01-02
申请号：US14661038
申请日：2015-03-18
Applicant: LG ELECTRONICS INC.
Inventor： Kakjoong Kim , Jaehwa Jung , Chiwoo Song
CPC classification number: H05K7/2039 , F24F1/24 , H05K7/20272
Abstract: An outdoor unit of an air conditioner is disclosed. The outdoor unit of the air conditioner includes an outdoor unit body, a printed circuit board having a heat generating element installed thereat, an electronic box mounted in the outdoor unit body, the electronic box having the printed circuit board installed therein, a heat dissipation module contacting the heat generating element, the heat dissipation module allowing refrigerant to flow therethrough, and a heat dissipation module support mounted in the outdoor unit body such that the heat dissipation module is fixed to the heat dissipation module support to support the heat dissipation module. Shaking of the heat dissipation module can be minimized when the electronic box is separated, thereby improving reliability of the heat dissipation module.
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公开(公告)号：US10401067B2
公开(公告)日：2019-09-03
申请号：US15415255
申请日：2017-01-25
Applicant: LG ELECTRONICS INC.
Inventor： Chiwoo Song , Pilhyun Yoon , Kakjoong Kim , Jaehwa Jung
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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