公开(公告)号：US20240183593A1

公开(公告)日：2024-06-06

申请号：US18136015

申请日：2023-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Jusu KIM ,  Sungoh CHOI ,  Beomchan KIM ,  Hyeri PARK ,  Hyungsoon KIM

IPC: F25B41/26 ,  F25B41/40 ,  F25B47/02

CPC classification number: F25B41/26 ,  F25B41/40 ,  F25B47/022 ,  F25B2313/027

Abstract: An air conditioner includes an outdoor unit comprising a compressor and an outdoor heat exchanger, and an indoor unit connected to the outdoor unit and provided with an indoor heat exchanger. The indoor unit includes a first refrigerant flow tube configured to connect an inlet side of the indoor heat exchanger to the outdoor unit, a second refrigerant flow tube configured to connect an outlet side of the indoor heat exchanger to the outdoor unit, a first bypass tube branched from a first branch point of the first refrigerant flow tube and joined to a first joining point of the second refrigerant flow tube, a second bypass tube branched from a second branch point of the first refrigerant flow tube and joined to a second joining point of the second refrigerant flow tube, and a flow switching valve disposed between the first joining point and the second joining point of the second refrigerant flow tube.

公开(公告)号：US20240175599A1

公开(公告)日：2024-05-30

申请号：US18504347

申请日：2023-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Beomchan KIM ,  Sungoh CHOI ,  Hyeri PARK ,  Jusu KIM ,  Hyungsoon KIM

IPC: F24F11/84

CPC classification number: F24F11/84

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include an outdoor unit including a compressor and an outdoor heat exchanger; and an indoor unit connected to the outdoor unit through a gas pipe and a liquid pipe and having an indoor heat exchanger including a first coil and a second coil branched from the gas pipe and connected in series, in which the indoor unit may include a first manifold and a second manifold connected by refrigerant pipes to enable refrigerant flow to the indoor heat exchanger, an expansion valve connected in parallel to the liquid pipe and configured to block flow of refrigerant or expand the refrigerant to reduce a pressure thereof, a distributor in which expansion valves are connected in series and connected by a refrigerant pipe to enable refrigerant flow to the first coil, a refrigerant flow pipe that connects a gas pipe side of the first manifold and the second coil, a gas-liquid separator installed in the refrigerant flow pipe to phase-separate the refrigerant, a bypass pipe installed between the gas pipe and the gas-liquid separator to bypass the gas-phase refrigerant separated in the gas-liquid separator and circulate the gas-phase refrigerant to the outdoor unit through the gas pipe, and a control valve installed on the gas pipe to block flow of refrigerant.

公开(公告)号：US20240183559A1

公开(公告)日：2024-06-06

申请号：US18504239

申请日：2023-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Jusu KIM ,  Sungoh CHOI ,  Beomchan KIM ,  Hyeri PARK ,  Hyungsoon KIM

IPC: F24F11/64 ,  F24F11/65 ,  F24F110/12

CPC classification number: F24F11/64 ,  F24F11/65 ,  F24F2110/12

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include an air handling unit; a return duct connected to the air handling unit to supply ventilation air to the air handling unit; an outside air introduction duct connected to the air handling unit to introduce outdoor air into a room; a damper module installed at a position at which the return duct and the outside air introduction duct are connected to each other and including a damper that opens or closes the return duct and the outside air introduction duct; a detector installed in the damper module to detect a temperature, humidity, enthalpy, and air pressure of air flowing through the damper module; and a controller that selectively and variably controls an opening amount of the damper based on a measured value and a set value of the detector.

公开(公告)号：US20240167742A1

公开(公告)日：2024-05-23

申请号：US18135441

申请日：2023-04-17

Applicant: LG ELECTRONICS INC.

Inventor： Beomchan KIM ,  Sungoh CHOI ,  Hyeri PARK ,  Jusu KIM ,  Hyungsoon KIM

IPC: F25B41/31 ,  F24F13/30 ,  F25B41/40

CPC classification number: F25B41/31 ,  F24F13/30 ,  F25B41/40

Abstract: An air conditioner comprises an outdoor unit including a compressor and an outdoor heat exchanger; and an indoor unit connected to the outdoor unit by a gas pipe and a liquid pipe and having an indoor heat exchanger including a first coil and a second coil branched from the gas pipe and connected in parallel, a first manifold and a second manifold connected by refrigerant pipes to enable refrigerant to flow to the indoor heat exchanger, a first expansion valve and a second expansion valve connected in parallel to the liquid pipe and that block or expand the refrigerant, refrigerant flow pipes connecting a gas pipe side of the first manifold and an outlet side of the second expansion valve, a third expansion valve installed on the refrigerant flow pipe to block or expand the refrigerant, and a control valve installed on the gas pipe to block the refrigerant.