公开(公告)号：US11725855B2

公开(公告)日：2023-08-15

申请号：US17088773

申请日：2020-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Chiwoo Song ,  Yongcheol Sa ,  Kakjoong Kim ,  Ilyoong Shin

IPC: F25B13/00 ,  F24F3/06 ,  F25B25/00

CPC classification number: F25B13/00 ,  F24F3/065 ,  F25B25/005 ,  F25B2313/0231 ,  F25B2600/2501

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.

公开(公告)号：US11629864B2

公开(公告)日：2023-04-18

申请号：US17394595

申请日：2021-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Chiwoo Song ,  Yongcheol Sa ,  Ilyoong Shin ,  Ahrae Jo

IPC: F24F3/10 ,  F24F11/84 ,  F24F1/0007 ,  F24F1/0038 ,  F24F1/0063 ,  F24F13/10

Abstract: A multi-type air conditioner may include three pipes, including a high-pressure pipe, a low-pressure pipe, and a liquid line which may be connected to a plurality of indoor units, in which some of the indoor units may be operated in a cooling mode and the rest of the indoor units may be operated in a heating mode, such that waste heat from the indoor units operated in the heating mode may be recovered to be used for the indoor units operated in the cooling mode.

公开(公告)号：US11506427B2

公开(公告)日：2022-11-22

申请号：US17088760

申请日：2020-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Jisung Lee ,  Ahrae Jo ,  Yongcheol Sa ,  Chiwoo Song ,  Ilyoong Shin

IPC: F25B13/00 ,  F24F1/0059 ,  F24F1/32 ,  F25B40/00

Abstract: Provided is an air conditioning apparatus. The air conditioning apparatus includes an outdoor unit which includes a compressor and an outdoor heat exchanger and through which a refrigerant is circulated, an indoor unit through which water is circulated, a heat exchanger in which the refrigerant and the water are heat-exchanged with each other, a water tube configured to guide the water circulated through the indoor unit and the heat exchanger, a pump installed in the water tube, and a controller configured to analyze an output signal of the pump so as to calculate a ration of an air layer in the water tube, the controller being configured to control a target supercooling degree or target superheating degree of the heat exchanger according to the calculated ratio of the air layer.

公开(公告)号：US20210222918A1

公开(公告)日：2021-07-22

申请号：US17088760

申请日：2020-11-04

Applicant: LG Electronics Inc.

Inventor： Jisung Lee ,  Ahrae Jo ,  Yongcheol Sa ,  Chiwoo Song ,  Ilyoong Shin

IPC: F25B13/00 ,  F24F1/0059 ,  F24F1/32 ,  F25B40/00

Abstract: Provided is an air conditioning apparatus. The air conditioning apparatus includes an outdoor unit which includes a compressor and an outdoor heat exchanger and through which a refrigerant is circulated, an indoor unit through which water is circulated, a heat exchanger in which the refrigerant and the water are heat-exchanged with each other, a water tube configured to guide the water circulated through the indoor unit and the heat exchanger, a pump installed in the water tube, and a controller configured to analyze an output signal of the pump so as to calculate a ration of an air layer in the water tube, the controller being configured to control a target supercooling degree or target superheating degree of the heat exchanger according to the calculated ratio of the air layer.

公开(公告)号：US20210199349A1

公开(公告)日：2021-07-01

申请号：US17108423

申请日：2020-12-01

Applicant: LG ELECTRONICS INC.

Inventor： Jisung LEE ,  Yongcheol Sa ,  Chiwoo Song ,  Ilyoong Shin

IPC: F25B5/02 ,  F25B41/22

Abstract: An air conditioner includes a bypass pipe connecting a first bypass branch of a first connection pipe, through which high-pressure refrigerant flows, with a second bypass branch of a third connection pipe, through which low-pressure refrigerant flows, to allow bypassing of high-pressure refrigerant in the first connection pipe to the third connection pipe, and a bypass valve mounted in the bypass pipe. During a cooling operation of an indoor unit, the bypass valve is opened to allow bypassing of high-pressure refrigerant of the first connection pipe to the third connection pipe.

公开(公告)号：US12228300B2

公开(公告)日：2025-02-18

申请号：US18112612

申请日：2023-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Ilyoong Shin ,  Chiwoo Song ,  Ahrae Jo ,  Eunjun Cho

IPC: F24F11/43 ,  F24F1/0068 ,  F24F5/00 ,  F24F11/64 ,  F24F11/84 ,  F24F13/30 ,  F24F1/005 ,  F24F1/0063 ,  F24F110/10 ,  F24F140/20

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：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.

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

IPC: F25B5/02 ,  F25B13/00 ,  F25B41/20

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.

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.

公开(公告)号：US10443911B2

公开(公告)日：2019-10-15

申请号：US15220138

申请日：2016-07-26

Applicant: LG ELECTRONICS INC.

Inventor： Donghwi Kim ,  Junseong Park ,  Ilyoong Shin

IPC: F25B41/04 ,  F25B13/00

Abstract: An air conditioner system including a compressor, a condenser, an expander, an evaporator, and a bypass pipeline that guides the evaporated refrigerant from the evaporator to the condenser, wherein the bypass pipeline includes: a first bypass pipe configured to guide at least some of the evaporated refrigerant from the evaporator to the condenser; a second bypass pipe attached to the first bypass pipe to allow heat exchange between refrigerant in the condenser and refrigerant therein; and a third bypass pipe coupled to the second bypass pipe to guide the refrigerant from the second bypass pipe out of the condenser.