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公开(公告)号：US11578898B2
公开(公告)日：2023-02-14
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.
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公开(公告)号：US11359842B2
公开(公告)日：2022-06-14
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：US20220065505A1
公开(公告)日：2022-03-03
申请号：US17409929
申请日：2021-08-24
Applicant: LG Electronics Inc.
Inventor： Jaehwa JUNG , Yongcheol Sa , Chiwoo Song
Abstract: A multi-air conditioner for heating and cooling may include at least one indoor unit installed in an indoor space and comprising an indoor heat exchanger and an indoor expansion valve; an outdoor unit connected to the at least one indoor unit via a refrigerant pipeline and comprising an outdoor heat exchanger, a compressor, an outdoor expansion valve, and a four-way valve; and at least one leak shut-off valve provided on the refrigerant pipeline, that blocks a flow of refrigerant in the refrigerant pipeline when a refrigerant leak from the refrigerant pipeline occurs in the indoor space. The outdoor unit may decrease a pressure of the refrigerant pipeline when a refrigerant leak occurs from the refrigerant pipeline. Therefore, it is possible to minimize an amount of refrigerant leakage when there is a refrigerant leak in the indoor space.
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公开(公告)号：US20210278095A1
公开(公告)日：2021-09-09
申请号：US17143328
申请日：2021-01-07
Applicant: LG ELECTRONICS INC.
Inventor： Chiwoo Song , Yongcheol Sa , Ilyoong Shin , Jisung Lee
Abstract: An air conditioning apparatus is provided that may include an outdoor unit including a compressor and an outdoor heat exchanger and through which a refrigerant is circulated, an indoor unit through which a fluid, such as water is circulated, and at least one heat exchange device including a heat exchanger in which the refrigerant and the fluid are heat-exchanged with each other. The at least one heat exchange device may include a high-pressure guide tube that extends from a high-pressure gas tube of the outdoor unit so as to be connected to a first side of the heat exchanger, a low-pressure guide tube that extends from a low-pressure gas tube of the outdoor unit so as to be combined with the high-pressure guide tube, a liquid guide tube that extends from a liquid tube of the outdoor unit so as to be connected to a second side of the heat exchanger, and a solenoid valve installed in the high-pressure guide tube or the low-pressure guide tube to perform an opening and closing operation so as to allow the refrigerant to flow in a first direction. The high-pressure gas tube and the low-pressure gas tube may be connected to each other by a single gas tube, and when the indoor unit performs a cooling operation or a heating operation, flow of refrigerant in the first direction may be blocked in a state in which power is applied to the solenoid valve.
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公开(公告)号：US10443872B2
公开(公告)日：2019-10-15
申请号：US14850739
申请日：2015-09-10
Applicant: LG ELECTRONICS INC.
Inventor： Pilhyun Yoon , Yongcheol Sa , Chiwoo Song
IPC: F25B49/02 , F24F11/30 , F24F11/70 , F24F11/83 , F24F110/00 , F24F110/10 , F24F110/12 , F24F110/20 , F24F110/22 , F24F110/40 , F24F140/12 , F24F11/41 , F24F11/42
Abstract: An air conditioner including an outside unit, which includes 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.
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Patent Agency Ranking
公开(公告)号：US10108159B2
公开(公告)日：2018-10-23
申请号：US14851333
申请日：2015-09-11
Applicant: LG ELECTRONICS INC.
Inventor： Pilhyun Yoon , Jaewon Lee , Yongcheol Sa
IPC: G05B21/00 , G01M1/38 , G05B13/00 , G05B15/00 , G05D23/00 , G05B15/02 , F25B49/02 , F24F11/30 , F24F11/62 , F24F11/70 , F24F110/10 , F24F110/12 , F24F110/20 , F24F110/22 , F24F11/64
Abstract: An air conditioner having an outdoor unit provided with a compressor, an outdoor temperature sensor, an outdoor humidity recognition part, and a control part, wherein the outdoor temperature sensor is installed on the outdoor unit to sense outdoor temperature, wherein the outdoor humidity recognition part is installed on the outdoor unit to recognize outdoor humidity information, and wherein the control part controls an operation of the compressor based information sensed from the outdoor temperature sensor and the outdoor humidity recognition part, whereby when the outdoor temperature has a preset value, the control part determines target evaporation temperature such that the target evaporation temperature is decreased as outdoor humidity increases, and the control part drives the compressor at an operation frequency corresponding to the determined target evaporation temperature.
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公开(公告)号：US09726408B2
公开(公告)日：2017-08-08
申请号：US14582477
申请日：2014-12-24
Applicant: LG Electronics Inc.
Inventor： Pilhyun Yoon , Yongcheol Sa
CPC classification number: F25B43/02 , F25B31/004 , F25B2313/0233 , F25B2500/16 , F25B2600/2515 , F25B2700/03
Abstract: An air conditioner is provided. The air conditioner may include a compressor to compress a refrigerant, at least one oil sensor disposed in the compressor to detect oil stored in the compressor, an oil separator to separate the oil from the refrigerant discharged from the compressor, a first collection tube to collect the oil separated by the oil separator into the compressor, a second collection tube disposed at a height different from a height of the first collection tube, an oil valve disposed in the second collection tube, and a controller to control the oil valve on the basis of information detected by the oil sensor.
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公开(公告)号：US09625217B2
公开(公告)日：2017-04-18
申请号：US13742866
申请日：2013-01-16
Applicant: LG Electronics Inc.
Inventor： Kakjoong Kim , Donghwi Kim , Yongcheol Sa , Junseong Park
CPC classification number: F28F1/00 , F25B13/00 , F25B39/00 , F25B39/028 , F28F9/0275 , F28F2250/06
Abstract: An air conditioner includes a compressor and a heat exchanger. The heat exchanger includes a first header pipe to have a refrigerant compressed by the compressor to flow therein, a heat exchange unit including a plurality of first refrigeration tubes and a plurality of second refrigeration tubes to thermally exchange the refrigerant with air, a plurality of first header branch pipes coupling the first header pipe with corresponding first refrigeration tubes in the heat exchange unit, a bypass pipe to have the refrigerant, thermally exchanged in the heat exchange unit, passing therethrough in the air cooling operation, and a second header pipe to have the refrigerant passing through the bypass pipe to flow therein. A plurality of second header branch pipes couples the second header pipe with corresponding second refrigeration tubes in the heat exchange unit, where at least two first refrigeration tubes have at least one second refrigeration tube therebetween.
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公开(公告)号：US09500396B2
公开(公告)日：2016-11-22
申请号：US13975637
申请日：2013-08-26
Applicant: LG ELECTRONICS INC.
Inventor： Pilhyun Yoon , Yongcheol Sa
CPC classification number: F25B43/02 , F25B31/004 , F25B2500/16 , F25B2600/2515
Abstract: An oil separator and an air conditioner using the same are provided. The air conditioner may include at least one indoor unit connected to an outdoor unit by a refrigerant tube. The outdoor unit may include a compressor and an oil separator including a plurality of oil recovery tubes introducing oil into the compressor. The oil separator may include a housing, a suction tube guiding oil-mixed refrigerant into the housing, a discharge tube discharging refrigerant separated from the oil-mixed refrigerant, and first and second recovery tubes discharging oil separated from the oil-mixed refrigerant. At least one of the first or second recovery tubes may include an oil valve guiding a movement direction of the oil.
Abstract translation: 提供了一种油分离器和使用该分离器的空调机。 空调机可以包括通过制冷剂管连接到室外单元的至少一个室内单元。 室外机可以包括压缩机和油分离器，其包括将油引入压缩机的多个油回收管。 油分离器可以包括壳体，将油混合制冷剂引导到壳体中的吸入管，排出与油混合制冷剂分离的制冷剂的排出管，以及排出与油混合制冷剂分离的油的第一回收管和第二回收管。 第一或第二回收管中的至少一个可以包括引导油的运动方向的油阀。
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公开(公告)号：US09377225B2
公开(公告)日：2016-06-28
申请号：US13756913
申请日：2013-02-01
Applicant: LG Electronics Inc.
Inventor： Chiwoo Song , Yongcheol Sa
CPC classification number: F25B39/00 , F24F1/14 , F25B13/00 , F25B30/02 , F25B47/022 , F25B2313/0251 , F25B2400/13 , F28D2021/0068 , F28F27/02 , F28F2250/06
Abstract: The present invention relates to an outdoor heat exchanger and air conditioner in which the passage of a refrigerant is varied in an air cooling operation and an air heating operation. An outdoor heat exchanger according to an embodiment of the present invention includes a first header pipe configured to have a refrigerant, compressed by a compressor, to flow therein in the air cooling operation, a first heat exchange unit coupled to the first header pipe and configured to thermally exchange the refrigerant with air, a bypass pipe configured to have the refrigerant, thermally exchanged in the first heat exchange unit, to flow therein in the air cooling operation, a first distribution pipe coupled to the bypass pipe, a second header pipe configured to have the refrigerant, passing through the bypass pipe, to flow therein in the air cooling operation, a second heat exchange unit coupled to the second header pipe and configured to thermally exchange the refrigerant with air, a second distribution pipe configured to have the refrigerant, thermally exchanged in the second heat exchange unit, to flow therein in the air cooling operation, a second hot gas pipe configured to couple the compressor and the second distribution pipe, and a second hot gas control valve disposed in the second hot gas pipe to control a flow of the refrigerant.
Abstract translation: 本发明涉及一种室外热交换器和空气调节器，其中制冷剂的通道在空气冷却操作和空气加热操作中变化。 根据本发明的实施例的室外热交换器包括：第一集管，被配置为具有在空气冷却操作中由压缩机压缩的制冷剂流入其中;第一热交换单元，连接到第一集管，并配置 为了与空气热交换制冷剂，将在第一热交换单元中热交换的制冷剂配置成在空气冷却运转中流通的旁通管，与旁通管连接的第一分配管，配置在第二配管 使制冷剂通过旁通管以在空气冷却操作中流入;第二热交换单元，其联接到第二总管并且构造成用空气热交换制冷剂;第二分配管，其被配置为具有制冷剂 在所述第二热交换单元中进行热交换，在所述空气冷却运转中流通，构成为第二热气管 联接压缩机和第二分配管，以及设置在第二热气管中的第二热气控制阀，以控制制冷剂的流动。
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