公开(公告)号：US20200309418A1

公开(公告)日：2020-10-01

申请号：US16808047

申请日：2020-03-03

Applicant: LG Electronics Inc.

Inventor： Ilyoong SHIN ,  Yongcheol SA ,  Chiwoo SONG ,  Jisung LEE

IPC: F25B13/00

Abstract: An air conditioning apparatus includes an outdoor unit configured to circulate refrigerant, an indoor unit configured to circulate water, and 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. The heat exchange device includes a first heat exchanger and a second heat exchanger, a first refrigerant pipe and a second refrigerant pipe that are connected to the first heat exchanger, a third refrigerant pipe and a fourth refrigerant pipe that are connected to the second heat exchanger, a first expansion valve disposed at the second refrigerant pipe, a second expansion valve disposed at the fourth refrigerant pipe, a bypass pipe that connects the second refrigerant pipe to the third refrigerant pipe, and a bypass valve disposed at the bypass pipe.

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

IPC: F25B49/02 ,  F25B47/02

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.

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

IPC: F25B13/00 ,  F25B49/02

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.