-
公开(公告)号：US20230074034A1
公开(公告)日：2023-03-09
申请号：US17797428
申请日：2020-11-13
Applicant: LG ELECTRONICS INC.
Inventor： IIyoong SHIN , Yongcheol SA , Chiwoo SONG , Kakjoong KIM
Abstract: An air conditioner includes an outdoor unit in which a refrigerant circulates; an indoor unit in which water circulates; a heat exchange device including a heat exchanger that connects the outdoor unit to the indoor unit and performs heat exchange between the refrigerant and the water; a first outdoor unit connection pipe configured to connect the outdoor unit and the heat exchange device, a high-pressure gaseous refrigerant flowing in the first outdoor unit connection pipe; a second outdoor unit connection pipe configured to connect the outdoor unit and the heat exchange device, a low-pressure gaseous refrigerant flowing in the second outdoor unit connection pipe; a third outdoor unit connection pipe configured to connect the outdoor unit and the heat exchange device, a liquid refrigerant lowing in the third outdoor unit connection pipe; a bypass pipe configured to communicate the third outdoor unit connection pipe and the second outdoor unit connection pipe; and a bypass valve provided in the bypass pipe.
-
公开(公告)号：US20220187001A1
公开(公告)日：2022-06-16
申请号：US17546212
申请日：2021-12-09
Applicant: LG ELECTRONICS INC.
Inventor： Jiyoung JANG , Yongcheol SA , Chiwoo SONG
Abstract: An air conditioner is provided that may include an outdoor unit having a compressor configured to compress a refrigerant; at least one indoor unit having an indoor heat exchanger, in which the refrigerant is heat exchanged, an indoor expansion valve that expands the refrigerant by adjusting an opening thereof, and a leak sensor that senses leakage of the refrigerant; a gaseous line that connects the outdoor unit and the at least one indoor unit and through which gaseous refrigerant flows; a liquid line that connects the outdoor unit and the at least one indoor unit and through which liquid refrigerant flows; a first shut-off valve disposed adjacent to the at least one indoor unit that opens and closes the gaseous line; a second shut-off valve disposed adjacent to the at least one indoor unit that opens and closes the liquid line; a supercooling pipe branched from the liquid line and connected to an inlet of the compressor; a supercooling expansion valve that expands refrigerant, flowing through the supercooling pipe, by adjusting an opening thereof; and a controller configured to control operation of the compressor and to control opening and closing of the first shut-off valve, the second shut-off valve, the indoor expansion valve, and the supercooling expansion valve. When the leak sensor senses the leakage of the refrigerant, the controller closes the first shut-off valve and the second shut-off valve.
-
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.
-
公开(公告)号：US20210231352A1
公开(公告)日：2021-07-29
申请号：US17134747
申请日：2020-12-28
Applicant: LG ELECTRONICS INC.
Inventor： Kakjoong KIM , Chiwoo SONG , Ilyoong SHIN , Yongcheol SA
Abstract: An air conditioning apparatus may include an outdoor unit through which a first fluid, such as refrigerant circulates, an indoor unit through which a second fluid, such as water circulates, a heat exchange device which is configured to connect the outdoor unit to the indoor unit and in which the first fluid and the second fluid are heat-exchanged with each other, first to third inner tubes configured to connect the outdoor unit to the heat exchange device, and a heat storage unit connected to the first to third inner tubes.
-
公开(公告)号：US20160131376A1
公开(公告)日：2016-05-12
申请号：US14850739
申请日：2015-09-10
Applicant: LG ELECTRONICS INC.
Inventor： Pilhyun YOON , Yongcheol SA , Chiwoo SONG
IPC: F24F11/00
Abstract: An air conditioner and a method of controlling the same are provided. The air conditioner includes an outside unit, which is provided with a compressor and an evaporator, an outside temperature sensor attached to the outside unit to sense outside temperature, an outside humidity recognition part attached to the outside unit to recognize information about outside humidity, a low pressure sensor that senses an evaporation pressure of the evaporator, and a control part that controls an operation of the compressor, based on both information about dew-point temperature sensed from the outside temperature sensor and the outside humidity recognition part and information about the evaporation pressure sensed from the low pressure sensor. The control part changes an operation frequency of the compressor according to whether the evaporation pressure is not lower than a preset reference low pressure, to prevent frosting of the evaporator.
Abstract translation: 提供一种空调及其控制方法。 空调机包括外部单元，其具有压缩机和蒸发器，附接到外部单元的外部温度传感器以感测室外温度，外部湿度识别部分附接到外部单元以识别关于外部湿度的信息， 基于从外部温度传感器和外部湿度识别部分感测的露点温度的信息以及关于蒸发的信息的两个信息来控制蒸发器的蒸发压力的低压传感器和控制压缩机的操作的控制部件 从低压传感器感测的压力。 控制部根据蒸发压力是否不低于设定的基准低压来改变压缩机的运转频率，以防止蒸发器结霜。
-
Patent Agency Ranking
公开(公告)号：US20160116196A1
公开(公告)日：2016-04-28
申请号：US14876048
申请日：2015-10-06
Applicant: LG ELECTRONICS INC.
Inventor： Pilhyun YOON , Yongcheol SA
Abstract: An oil separator and an air conditioner including an oil separator are provided. The oil separator may include a housing including a suction tube that guides a refrigerant, in which an oil may be mixed, into the housing and a discharge tube that discharges refrigerant separated from the refrigerant, in which the oil may be mixed, to the outside, a first collection tube that communicates with a lower portion of the housing to discharge the oil separated from the oil to a compressor, a second collection tube that communicates with a side surface of the housing to discharge the oil separated from the refrigerant to the compressor, and a control valve provided in communication with the first collection tube or the second collection tube to control a flow of the oil through the first collection tube or the second collection tube. The second collection tube may be sloped or extend in a downward direction and then sloped or extend in an upward direction away from a position at which the second collection tube communicates with the housing, and ends of the first and second collection tubes may be coupled.
Abstract translation: 提供了一种油分离器和包括油分离器的空调。 油分离器可以包括壳体，该壳体包括将其中可以混合油的制冷剂引导到壳体中的抽吸管和将其中可以混合的制冷剂分离的制冷剂排出到外部的排出管 第一收集管，其与壳体的下部连通以将从油分离的油排出到压缩机;第二收集管，其与壳体的侧表面连通以将从制冷剂分离的油排出到压缩机 以及与第一收集管或第二收集管连通地设置的控制阀，以控制通过第一收集管或第二收集管的油的流动。 第二收集管可以向下倾斜或延伸，然后沿着向上的方向倾斜或延伸，远离第二收集管与壳体连通的位置，并且第一和第二收集管的端部可以联接。
-
公开(公告)号：US20230228469A1
公开(公告)日：2023-07-20
申请号：US18022873
申请日：2021-08-27
Applicant: LG ELECTRONICS INC.
Inventor： Daehyoung KIM , Yongcheol SA , Eunjun CHO , Junseong PARK
CPC classification number: F25B41/42 , F25B39/028 , B01D19/0042 , B01D19/0068 , F25B2400/0409 , F25B2400/23
Abstract: Disclosed is an air conditioner. The air conditioner of the present disclosure for achieving the above or other object, there is provided an air conditioner including: a compressor which compresses refrigerant; an accumulator which supplies refrigerant to the compressor; a condenser which condenses refrigerant discharged from the compressor; an expansion valve which expands refrigerant passing through the condenser; an evaporator which has a heat exchange pipe through which refrigerant passing through the expansion valve flows, and evaporates refrigerant flowing through the heat exchange pipe; a gas-liquid separation pipe which connects a first point and a second point located between one end and the other end of the heat exchange pipe; and a bypass pipe which has one end connected to the gas-liquid separation pipe and the other end connected to the accumulator, wherein the gas-liquid separation pipe comprises: a first part which has one end connected to the first point and the other end connected to one end of the bypass pipe; and a second part which extends from the first part at between one end and the other end of the first part, and is connected to the second point.
-
公开(公告)号：US20220090816A1
公开(公告)日：2022-03-24
申请号：US17474218
申请日：2021-09-14
Applicant: LG ELECTRONICS INC.
Inventor： Junseong PARK , Daehyoung KIM , Hyungjoon KIM , Yongcheol SA
Abstract: A multi-air conditioner for cooling and heating is provided to remove latent heat and sensible heat by using a single outdoor unit. The multi-air conditioner includes: at least one indoor unit installed in a room, that comprises an indoor heat exchanger and an indoor expansion valve; an outdoor unit connected to the indoor unit via a refrigerant pipeline, that comprises an outdoor heat exchanger, a plurality of compressors, an outdoor expansion valve, and a four-way valve; and a dedicated outdoor air ventilation unit connected to the indoor unit and the outdoor unit via the refrigerant pipeline, that dehumidifies and ventilates outdoor air and supplies the outdoor air to the room, wherein the outdoor unit provides a refrigerant to both the dedicated outdoor air ventilation unit and the indoor unit by controlling the compressors depending on an operation mode of the dedicated outdoor air ventilation unit and the indoor unit. Accordingly, it is possible to run an air conditioner for cooling and heating and a dedicated outdoor air conditioner simultaneously by using a single outdoor unit. Moreover, the handling of sensible and latent heats can be controlled by a single outdoor unit, thereby minimizing facility costs and enhancing control reliability.
-
公开(公告)号：US20210239375A1
公开(公告)日：2021-08-05
申请号：US17089855
申请日：2020-11-05
Applicant: LG ELECTRONICS INC.
Inventor： Kakjoong KIM , Chiwoo Song , Ilyoong Shin , Yongcheol SA
IPC: F25B41/04
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：US20210131695A1
公开(公告)日：2021-05-06
申请号：US16962929
申请日：2019-01-18
Applicant: LG ELECTRONICS INC.
Inventor： Eunjun CHO , Yongcheol SA , Jiyoung JANG
Abstract: Provided is a multi-type air conditioner, including: an outdoor unit having a liquid pipe through which a liquid refrigerant flows, and a gas pipe through which a gas refrigerant flows; a plurality of indoor units comprising a first indoor unit and a second indoor unit each connected to the liquid pipe and the gas pipe to circulate a refrigerant; a gas pipe connecting tube connecting the gas pipe and the plurality of indoor units so that a gas refrigerant flows therethrough; and a liquid pipe connecting tube connecting the liquid pipe and the plurality of indoor units so that a liquid refrigerant flows therethrough. The first indoor unit may include: a first indoor heat exchanger comprising a first heat exchanger configured to perform heat exchange between indoor air and a refrigerant, and a second heat exchanger configured to perform heat exchange between indoor air and a refrigerant and arranged in a stacked fashion with the first heat exchanger; a first indoor fan configured to blow air to the first heat exchanger and the second heat exchanger; a first liquid branch pipe connecting the liquid pipe connecting tube and the first heat exchanger so that a refrigerant flows therethrough; a first gas branch pipe connecting the gas pipe connecting tube and the second heat exchanger so that a refrigerant flows therethrough; a first heat exchanger connecting pipe connected to the first heat exchanger so that a refrigerant flows therethrough; a second heat exchanger connecting pipe connected to the second heat exchanger so that a refrigerant flows therethrough; a return pipe having one side connected to the first gas branch pipe and the other side connected to the first heat exchanger connecting pipe and the second heat exchanger connecting pipe; a first indoor expansion valve disposed at the second heat exchanger connecting pipe, wherein an opening amount of the first indoor expansion valve is adjusted in response to an input signal from a controller to selectively expand a flowing refrigerant; and a first expansion valve disposed in the return pipe, wherein an opening amount of the first expansion valve is adjusted in response to an input signal from the controller to selectively expand a flowing refrigerant.
Since the multi-type air conditioner according to the present disclosure can operate the first heat exchanger as a condenser and the second heat exchanger as an evaporator among the indoor heat exchangers, it is possible to constantly operate the dehumidifying mode while maintaining a room temperature within a predetermined range.
-
-
-
-
-
-
-
-
-
Search Results
31
records
(took 0.016 seconds)
