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公开(公告)号：US11512881B2
公开(公告)日：2022-11-29
申请号：US17089855
申请日：2020-11-05
Applicant: LG ELECTRONICS INC.
Inventor： Kakjoong Kim , Chiwoo Song , Ilyoong Shin , Yongcheol Sa
IPC: F25B41/20
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：US11415343B2
公开(公告)日：2022-08-16
申请号：US16775912
申请日：2020-01-29
Applicant: LG Electronics Inc.
Inventor： Chiwoo Song , Yongcheol Sa , Youngjoo Shin , Ilyoong Shin
Abstract: An air conditioning apparatus includes an outdoor device that is configured to circulate refrigerant and that includes a compressor and an outdoor heat exchanger, a plurality of indoor devices configured to circulate water, and a heat exchange device that connects the outdoor device with the indoor device. The heat exchange device includes a heat exchanger configured to exchange heat between the refrigerant and the water, and a switch device configured to control flow of refrigerant between the indoor device and the heat exchanger.
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公开(公告)号：US11274851B2
公开(公告)日：2022-03-15
申请号：US16792042
申请日：2020-02-14
Applicant: LG Electronics Inc.
Inventor： Ilyoong Shin , Yongcheol Sa , Chiwoo Song , Youngjoo Shin , Jisung Lee
IPC: F24F11/84 , F24F1/32 , F24F1/0007 , F24F13/30 , F24F140/20
Abstract: An air conditioning apparatus includes: an outdoor unit configured to circulate refrigerant; an indoor unit configured to circulate water; a heat exchange device that connects the indoor unit to the outdoor unit and that is configured to perform heat exchange between the refrigerant and the water; and a plurality of pipes and valves. The heat exchange device includes first and second heat exchangers. The air conditioning apparatus is configured to perform a cooling operation or a heating operation based on operating one or both of the first heat exchanger and the second heat exchanger and one or more of the valves.
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公开(公告)号：US11209011B2
公开(公告)日：2021-12-28
申请号：US16346390
申请日：2017-11-01
Inventor： Taejun Kim , Seokho Choi , Siyoung Oh , Yongcheol Sa , Haecheon Choi , Keuntae Park
Abstract: Disclosed is an air conditioner that suppresses generation of leakage vortices between a fan and a shroud. An air conditioner according to an embodiment of the present invention includes: an axial fan for blowing air; a shroud partially surrounding a circumference of the axial fan to guide air blown by the axial fan; and a fence ring provided in an inner surface of the shroud and protruding in a radial direction from the inner surface of the shroud. In addition, the fence ring is disposed between a downstream end of the axial fan and a downstream end of the shroud.
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公开(公告)号：US20240133602A1
公开(公告)日：2024-04-25
申请号：US18380267
申请日：2023-10-15
Applicant: LG ELECTRONICS INC.
Inventor： Daehyoung KIM , Yongcheol Sa , Jiyoung Jang , Chiwoo Song , Jisung Lee
CPC classification number: F25B49/02 , F25B13/00 , F25B2313/007 , F25B2313/0233 , F25B2313/0291 , F25B2313/0292 , F25B2600/2513 , F25B2700/1933
Abstract: An air conditioner may include a controller; a compressor; an outdoor heat exchanger; a plurality of indoor heat exchangers; a switching valve that selectively guides a refrigerant discharged from the compressor to the outdoor heat exchanger or the plurality of indoor heat exchangers; high pressure pipes that connect the switching valve and the plurality of indoor heat exchangers; high pressure valves installed in the high pressure pipes; low pressure pipes that connect an inlet of the compressor and the high pressure pipes. low pressure valves installed in the low pressure pipes; indoor pipes, which are opposite to the high pressure pipes with respect to the plurality of indoor heat exchangers and connected to the plurality of indoor heat exchangers; indoor expansion valves installed in the indoor pipes; a liquid pipe that connects the outdoor heat exchanger and the indoor pipes; and an outdoor expansion valve installed in the liquid pipe.
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Patent Agency Ranking
公开(公告)号：US11761697B2
公开(公告)日：2023-09-19
申请号：US17491603
申请日：2021-10-01
Applicant: LG ELECTRONICS INC.
Inventor： Hyungjoon Kim , Junseong Park , Daehyoung Kim , Yongcheol Sa
CPC classification number: F25B49/02 , F25B13/00 , F25B31/004 , F25B43/02 , F25B2313/0231 , F25B2313/0233 , F25B2313/02741
Abstract: A multi-air conditioner for heating/cooling operations, including at least one indoor unit for heating/cooling operations including an indoor heat exchanger; and an outdoor unit for heating/cooling operations including a compressor, an outdoor heat exchanger, and a switching unit configured to be disposed in a discharge side of the compressor to switch a flow of refrigerant. The outdoor unit includes a receiver that selectively stores refrigerant or oil according to a cooling or heating operation mode and provides the stored refrigerant or oil to the compressor. Accordingly, in the accumulator of the multi-air conditioner using the receiver, the receiver which is not used in the heating mode may be converted and used for oil storage, thereby preventing oil burnout without adding structure.
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公开(公告)号：US11739956B2
公开(公告)日：2023-08-29
申请号：US17143328
申请日：2021-01-07
Applicant: LG ELECTRONICS INC.
Inventor： Chiwoo Song , Yongcheol Sa , Ilyoong Shin , Jisung Lee
IPC: F24F3/06 , F25B25/00 , F25B13/00 , F25B41/325
CPC classification number: F24F3/065 , F25B13/00 , F25B25/005 , F25B41/325 , F25B2313/006 , F25B2313/007 , F25B2313/0231 , F25B2313/0272 , F25B2313/02732 , F25B2313/02741
Abstract: An air conditioning apparatus is provided that may include an outdoor unit including a compressor and an outdoor heat exchanger and through which a refrigerant is circulated, an indoor unit through which a fluid, such as water is circulated, and at least one heat exchange device including a heat exchanger in which the refrigerant and the fluid are heat-exchanged with each other. The at least one heat exchange device may include a high-pressure guide tube that extends from a high-pressure gas tube of the outdoor unit so as to be connected to a first side of the heat exchanger, a low-pressure guide tube that extends 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 that extends from a liquid tube of the outdoor unit so as to be connected to a second side of the heat exchanger, and a solenoid valve installed in the high-pressure guide tube or the low-pressure guide tube to perform an opening and closing operation so as to allow the refrigerant to flow in a first direction. The high-pressure gas tube and the low-pressure gas tube may be connected to each other by a single gas tube, and when the indoor unit performs a cooling operation or a heating operation, flow of refrigerant in the first direction may be blocked in a state in which power is applied to the solenoid valve.
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公开(公告)号：US11519645B2
公开(公告)日：2022-12-06
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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公开(公告)号：US20210247119A1
公开(公告)日：2021-08-12
申请号：US16996341
申请日：2020-08-18
Applicant: LG ELECTRONICS INC.
Inventor： Ahrae Jo , Chiwoo Song , Yongcheol Sa , Youngjoo Shin
Abstract: An air conditioning apparatus and a method for controlling an air conditioning apparatus are provided. The air conditioning apparatus may include a controller that performs an abnormal operation diagnosis of the air conditioning apparatus based on an output signal of a pump, thereby directly checking introduction of air into pipes or clogging of valves.
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公开(公告)号：US10465936B2
公开(公告)日：2019-11-05
申请号：US15901689
申请日：2018-02-21
Applicant: LG ELECTRONICS INC.
Inventor： Pilhyun Yoon , Yongcheol Sa , Chiwoo Song
IPC: F24F11/30 , F24F11/70 , F24F11/83 , F25B49/02 , F24F110/00 , F24F110/10 , F24F110/12 , F24F110/20 , F24F110/22 , F24F110/40 , F24F140/12 , F24F11/41 , F24F11/42
Abstract: A method of controlling an air conditioner, including inputting, by an operation command input part, an operation command for the air conditioner through which a refrigerating cycle circulates; sensing, by an outside temperature sensor, an outside temperature; sensing, by an outside humidity recognition part, an outside humidity; sensing, by a low pressure sensor, a low pressure of the refrigerating cycle; recognizing, by a controller, information about the outside temperature, the outside humidity, and the low pressure; entering, by the controller, a changing mode in which a first target high pressure of the refrigerating cycle is changed when the low pressure is less than a first reference low pressure; and changing, by the controller, an operation frequency of a compressor of the air conditioner in response to a range of the low pressure when the changing mode is performed.
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