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公开(公告)号：US20210278114A1
公开(公告)日：2021-09-09
申请号：US16482788
申请日：2018-02-01
Applicant: LG ELECTRONICS INC.
Inventor： Jaehwa JUNG , Daehyoung KIM , Junseong PARK , Pilhyun YOON
Abstract: The present invention relates to an outdoor system for an air conditioner. In an air conditioner which comprises at least one outdoor system, the at least one outdoor system comprises: a compressor; an outdoor heat exchanger; a pair of two-stage compression lines extending to the outside of the outdoor system; a pair of connection lines extending to the outside of the outdoor system and communicating with an indoor unit; and multiple valves for opening/closing the pair of two-stage compression lines and the pair of connection lines when the outdoor system is operated in a one-stage heating mode or two-stage heating mode.
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公开(公告)号：US20210055008A1
公开(公告)日：2021-02-25
申请号：US16979403
申请日：2018-08-31
Applicant: LG ELECTRONICS INC.
Inventor： Daehyoung KIM , IIyoong SHIN , Pilhyun YOON , Jaehwa JUNG
Abstract: An outdoor unit for an air conditioner may include a case, a controller disposed in the case, a coupling member configured to connect the case to the controller, and a cooling pipe coupled to one side of the controller so as to perform heat-exchange with the controller. The controller may include a first controller connected to the coupling member so as to be rotatably coupled to the case, and a second controller coupled to the cooling pipe so as to be fixedly installed inside of the case.
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公开(公告)号：US20240133605A1
公开(公告)日：2024-04-25
申请号：US18380291
申请日：2023-10-15
Applicant: LG ELECTRONICS INC.
Inventor： Daehyoung KIM , Yongcheol SA , Jiyoung JANG , Chiwoo SONG , Jisung LEE
CPC classification number: F25B49/022 , F25B41/34 , F25B2313/0233 , F25B2600/2513
Abstract: An air conditioner may include a controller; a compressor that compresses a refrigerant; an outdoor heat exchanger through which the refrigerant discharged from the compressor flows; a plurality of expansion valves that expands the refrigerant passed through the outdoor heat exchanger; a plurality of indoor heat exchangers through which the refrigerant passed through the plurality of expansion valves flows; a plurality of connection pipes that connects the plurality of indoor heat exchangers and the compressor; and a plurality of variable valves installed in the plurality of connection pipes. An opening degree of each of the plurality of variable valves may be adjustable via the controller.
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公开(公告)号：US20200309417A1
公开(公告)日：2020-10-01
申请号：US16785404
申请日：2020-02-07
Applicant: LG Electronics Inc.
Inventor： Donghwi KIM , Yongcheol SA , Jaehwa JUNG , Daehyoung KIM
Abstract: An air conditioning apparatus includes: an outdoor unit configured to circulated refrigerant; a first pipe and a second pipe that are connected to the outdoor unit; an indoor unit configured to circulate water; and a heat exchange device that connects the outdoor unit to the indoor unit. The heat exchange device includes a first heat exchanger and a second heat exchanger that are each configured to perform heat exchange between the refrigerant and the water, a plurality of connection pipes, a bypass pipe configured to guide the refrigerant passing through the first heat exchanger to the second heat exchanger, and a bypass valve installed at the bypass pipe.
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公开(公告)号：US20240230190A9
公开(公告)日：2024-07-11
申请号：US18380267
申请日：2023-10-16
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：US20240142131A1
公开(公告)日：2024-05-02
申请号：US18384084
申请日：2023-10-26
Applicant: LG Electronics Inc.
Inventor： Daehyoung KIM , Yongcheol SA , Jiyoung Jang , Chiwoo Song , Jisung Lee
IPC: F24F11/84 , F24F1/0035 , F24F11/46 , F24F11/63
CPC classification number: F24F11/84 , F24F1/0035 , F24F11/46 , F24F11/63 , F24F2140/12
Abstract: An air conditioner is provided that may include an outdoor unit provided with a compressor; a plurality of indoor units connected to the outdoor unit, each having an indoor heat exchanger, and each disposed in a different space; a low pressure pipe that connects the indoor heat exchanger and the compressor and in which low pressure gaseous refrigerant flows; a switching device provided with a low pressure valve disposed between the indoor heat exchanger and the low pressure pipe; an indoor temperature sensor that measures a temperature of a space in which an indoor unit of the respective indoor unit is disposed; and a controller that is electrically connected to the indoor temperature sensor and adjusts an opening degree of the low pressure valve. The controller may adjust the opening degree of the low pressure valve based on a difference between a value measured by the indoor temperature sensor and a previously input set temperature. By increasing an evaporation pressure in the indoor unit, noise from the air conditioner may be suppressed or prevented and comfort improved.
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公开(公告)号：US20210404689A1
公开(公告)日：2021-12-30
申请号：US17293249
申请日：2019-10-25
Applicant: LG ELECTRONICS INC.
Inventor： Daehyoung KIM , Donghwi KIM , Jaehwa JUNG
Abstract: The present disclosure is to provide an air conditioner, capable of performing constant air volume control regardless of the variation in a supply voltage and a method for operating the same.
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公开(公告)号：US20240230193A9
公开(公告)日：2024-07-11
申请号：US18380291
申请日：2023-10-16
Applicant: LG ELECTRONICS INC.
Inventor： Daehyoung KIM , Yongcheol SA , Jiyoung JANG , Chiwoo SONG , Jisung LEE
CPC classification number: F25B49/022 , F25B41/34 , F25B2313/0233 , F25B2600/2513
Abstract: An air conditioner may include a controller; a compressor that compresses a refrigerant; an outdoor heat exchanger through which the refrigerant discharged from the compressor flows; a plurality of expansion valves that expands the refrigerant passed through the outdoor heat exchanger; a plurality of indoor heat exchangers through which the refrigerant passed through the plurality of expansion valves flows; a plurality of connection pipes that connects the plurality of indoor heat exchangers and the compressor; and a plurality of variable valves installed in the plurality of connection pipes. An opening degree of each of the plurality of variable valves may be adjustable via the controller.
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公开(公告)号：US20220107126A1
公开(公告)日：2022-04-07
申请号：US17491603
申请日：2021-10-01
Applicant: LG ELECTRONICS INC.
Inventor： Hyungjoon KIM , Junseong PARK , Daehyoung KIM , Yongcheol SA
Abstract: The present disclosure provides a multi-air conditioner for heating/cooling operation including: at least one of indoor units for heating/cooling operation including an indoor heat exchanger respectively; and an outdoor unit for heating/cooling operation 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, wherein the outdoor unit for heating/cooling operation includes a receiver which 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 for heating/cooling operation using the receiver, the receiver that is not used in the heating mode can be converted and used for oil storage, thereby preventing oil burnout without adding a structure.
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公开(公告)号：US20200018501A1
公开(公告)日：2020-01-16
申请号：US16486081
申请日：2018-02-06
Applicant: LG Electronics Inc.
Inventor： Daehyoung KIM , Junseong PARK , Jaehwa JUNG
Abstract: The present invention relates to an air conditioner. The air conditioner comprises: an indoor unit having an indoor heat exchanger installed therein; a first outdoor unit having a first outdoor heat exchanger and a first compressor installed therein; a second outdoor unit having a second outdoor heat exchanger and a second compressor installed therein; an auxiliary module which connects the indoor unit, the first outdoor unit, and the second outdoor unit; a first connection line by which the auxiliary module is connected to the first outdoor unit; a second connection line by which the auxiliary module is connected to the second outdoor unit; and a two-stage compression line by which the first outdoor unit is connected to the second outdoor unit.
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