公开(公告)号：US20210348797A1

公开(公告)日：2021-11-11

申请号：US17212220

申请日：2021-03-25

Applicant: LG ELECTRONICS INC.

Inventor： Youngjoo SHIN ,  Chiwoo Song ,  Jaewon Lee ,  Soyoon Kim

IPC: F24F11/84 ,  F24F1/0068

Abstract: A heat pump and a method for operating a heat pump are provided. The heat pump may include an outdoor unit including a compressor that compresses a refrigerant and an outdoor heat exchanger that exchanges heat between the refrigerant and outdoor air, a hybrid unit including at least one fluid-refrigerant heat exchanger that exchanges heat between the refrigerant supplied from the outdoor unit and a fluid, such as water, and at least one refrigerant control valve that controls an amount of refrigerant flowing through the at least one fluid-refrigerant heat exchanger, a plurality of indoor units each including an indoor heat exchanger that exchanges heat between the fluid supplied from the hybrid unit and indoor air, and a controller. The controller may calculate operation loads of the plurality of indoor units and control an opening degree of the at least one refrigerant control value based on the operation loads of the plurality of indoor units.

公开(公告)号：US20220154965A1

公开(公告)日：2022-05-19

申请号：US17523055

申请日：2021-11-10

Applicant: LG ELECTRONICS INC.

Inventor： Jukyoung LEE ,  Youngjoo SHIN

IPC: F24F11/65 ,  F24F7/08

Abstract: A ventilation system according to an embodiment of the present disclosure includes: a plurality of dedicated outdoor air systems, each having one or more temperature sensors and configured to cause outdoor air to flow into an indoor space and indoor air to flow outside thereof; and a controller configured to control the plurality of dedicated outdoor air systems based on temperature data sensed by temperature sensors included in the plurality of dedicated outdoor air systems, wherein the controller: in response to temperature uniformity of the indoor space, in which the plurality of dedicated outdoor air systems are installed, satisfying a predetermined temperature uniformity criterion, controls all the dedicated outdoor air systems to operate in a first operation mode in which the dedicated outdoor air systems operate according to a set temperature; and in response to the temperature uniformity not satisfying the predetermined temperature uniformity criterion, controls the dedicated outdoor air systems to operate in a second operation mode in which at least one dedicated outdoor air system operates in a mode different from that of other dedicated outdoor air systems.

公开(公告)号：US20200370794A1

公开(公告)日：2020-11-26

申请号：US16775912

申请日：2020-01-29

Applicant: LG Electronics Inc.

Inventor： Chiwoo SONG ,  Yongcheol SA ,  Youngjoo SHIN ,  Ilyoong SHIN

IPC: F25B13/00

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：US20210080140A1

公开(公告)日：2021-03-18

申请号：US16772637

申请日：2019-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Jaewon LEE ,  Woojoo CHOI ,  Jinhyoung PARK ,  Youngjoo SHIN

IPC: F24F11/42 ,  F25B6/02 ,  F25B47/02

Abstract: An air conditioner includes an outdoor heat exchanger in which N heat exchange units are spaced apart from one another sequentially in a vertical direction N expansion valves respectively connected to the N heat exchange units; N hot gas pipes respectively connected to the N heat exchange units; N hot gas valves respectively installed in the N hot gas pipes; and a controller configured to control the N expansion valves and the N hot gas valves to defrost the N heat exchange units, wherein the controller is configured to defrost a bottom heat exchange unit first, then defrost a top heat exchange unit, and defrost the heat exchange units located under the top heat exchange unit sequentially from a second highest heat exchange unit to the bottom heat exchange unit after defrosting the top heat exchange unit.

公开(公告)号：US20200263889A1

公开(公告)日：2020-08-20

申请号：US16757948

申请日：2019-07-10

Applicant: LG ELECTRONICS INC.

Inventor： Youngjoo SHIN ,  Jaewon LEE ,  Ilyoong SHIN

IPC: F24F11/30 ,  F24F11/63

Abstract: An air conditioning system according to an embodiment may include an outdoor unit including a compressor; at least one distributor connected to the outdoor unit and including a condenser and an evaporator that exchange heat between a refrigerant and water with each other; a plurality of heating pipes in communication with the condenser; a plurality of cooling pipes in communication with the evaporator; a plurality of fan coil units connected to the heating pipes or the cooling pipes; and a controller configured to perform a heating pipe search operation for matching a portion of the plurality of fan coil units with the plurality of heating pipes, and a cooling pipe search operation for matching another portion of the plurality of fan coil units with the plurality of cooling pipes, in parallel.

公开(公告)号：US20200326091A1

公开(公告)日：2020-10-15

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

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.