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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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公开(公告)号：US20240085071A1
公开(公告)日：2024-03-14
申请号：US18112661
申请日：2023-02-22
Applicant: LG ELECTRONICS INC.
Inventor： Junseong PARK , Eunjun CHO , Jihyeong RYU
CPC classification number: F25B41/20 , F25B7/00 , F25D21/002 , F25B2600/25
Abstract: An air conditioner may include a first compressor that compresses a refrigerant; a second compressor that compresses the refrigerant; an indoor heat exchanger that performs heat exchange between the refrigerant and air; a first four-way valve having a port connected to the first compressor; a first outdoor heat exchanger connected to a port of the first four-way valve; a first valve connected to a port of the first four-way valve; a second four-way valve having a port connected to the second compressor; a second outdoor heat exchanger connected to a port of the second four-way valve; a second valve connected to a port of the second four-way valve; a first valve pipe that connects a port of the first four-way valve and a port of the second four-way valve; a second valve pipe that connects the first valve and the second valve; and a third four-way valve having a port connected to the first valve pipe, a port connected to the second valve pipe, a port connected to the first compressor and the second compressor, and a port connected to the indoor heat exchanger.
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公开(公告)号：US20210218323A1
公开(公告)日：2021-07-15
申请号：US17037129
申请日：2020-09-29
Applicant: LG ELECTRONICS INC.
Inventor： Junseong PARK , Euisuk Jung , Seungjin OH , Hajeong LEE
Abstract: An electric motor and a compressor having an electric motor are disclosed herein. The electric motor may include a stator having a stator core and a stator coil, and a rotor provided with a rotational shaft and rotatably disposed with respect to the stator. The stator coil may include a main winding and an auxiliary winding connected to each other with a phase difference. The main winding may be divided into a plurality of main windings so as to be connected to each other and disconnected from each other, and the stator coil may further include a winding changeover switch configured to provide connection and disconnection between the plurality of main windings. Such a configuration may allow operating efficiency at a low load to be increased.
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公开(公告)号：US20160033179A1
公开(公告)日：2016-02-04
申请号：US14712600
申请日：2015-05-14
Applicant: LG ELECTRONICS INC.
Inventor： Donghwi KIM , Ilyoong SHIN , Junseong PARK
CPC classification number: F25B30/02 , F24F1/14 , F24F1/30 , F25B13/00 , F25B39/00 , F25B39/028 , F25B41/003 , F25B2313/025 , F25B2313/02533 , F25B2313/02541 , F25B2400/075 , F25B2400/13 , F28D1/0233 , F28D1/0477 , F28F9/0275 , F28F17/005
Abstract: An air conditioner includes a compressor, a flow switching part, an outdoor heat exchanger including a plurality of refrigerant tubes for guiding the refrigerant heat exchanged with outdoor air, a main expansion valve disposed at one side of the outdoor heat exchanger, a first inlet/outlet tube extending from the flow switching part to the outdoor heat exchanger, and a second inlet/outlet tube extending from the outdoor heat exchanger to the main expansion valve. The outdoor heat exchanger includes a header defining a flow space for the refrigerant, the header including an upper header and a lower header, a check valve disposed between the upper header and the lower header to guide the refrigerant to flow in one direction, and a bypass tube extending from the lower header to the second inlet/outlet tube to guide a discharge of a liquid refrigerant existing in the lower header.
Abstract translation: 一种空气调节机，包括压缩机，流量切换部，室外热交换器，该室外热交换器包括多个用于引导与室外空气交换的制冷剂的制冷剂管，设置在室外热交换器一侧的主膨胀阀，第一入口/ 出口管从流动切换部分延伸到室外热交换器，以及从室外热交换器延伸到主膨胀阀的第二入口/出口管。 室外热交换器包括限定用于制冷剂的流动空间的集管，集管包括上集管和下集管，止回阀，设置在上集管和下集管之间，以引导制冷剂沿一个方向流动， 旁路管从下集管延伸到第二入口/出口管，以引导存在于下集管中的液体制冷剂的排放。
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Patent Agency Ranking
公开(公告)号：US20250067485A1
公开(公告)日：2025-02-27
申请号：US18811217
申请日：2024-08-21
Applicant: LG Electronics Inc.
Inventor： Eunjun CHO , Junseong PARK , Kakjoong KIM , Hyungjoon KIM , Dongkeun YANG
Abstract: The present disclosure relates to an oil separator. The oil separator according to the present disclosure includes: a body having a space therein; a refrigerant discharge pipe connected to one side of the body, and discharging refrigerant which exists in the space; a supply pipe connected to the other side of the body, and sending refrigerant including ejected from a compressor to the space; and an oil discharge pipe connected to another side of the body, and discharging oil which exists in the space. The supply pipe includes a first inner supply pipe extended from a circumferential surface of the body to an inside having the space, and a second inner supply pipe disposed in the space, disposed to be spaced apart from the circumferential surface of the body, and having a form bent in a central direction of the body.
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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：US20160123645A1
公开(公告)日：2016-05-05
申请号：US14925499
申请日：2015-10-28
Applicant: LG ELECTRONICS INC.
Inventor： Donghwi KIM , Junseong PARK , Ilyoong SHIN
CPC classification number: F25B49/02 , F25B13/00 , F25B39/00 , F25B2313/02533 , F25B2313/02541 , F25B2313/0315 , F25B2600/2501 , F25B2700/04
Abstract: An air conditioner includes a compressor; a flow switching part disposed at an outlet side of the compressor to switch a flow direction of a refrigerant according to whether a cooling operation or heating operation is performed; an outdoor heat exchanger connected to the flow switching part and having a plurality of the refrigerant pipes to guide the refrigerant which heat-exchanges with outdoor air; and a main expansion valve connected to one side of the outdoor heat exchanger. A first inlet/outlet pipe connects the flow switching part to the outdoor heat exchanger; and a second inlet/outlet pipe connects the outdoor heat exchanger to the main expansion valve, where the outdoor heat exchanger includes a header to form a flowing space of the refrigerant and having an upper header and a lower header; a check valve disposed between the upper header and the lower header to guide the refrigerant to flow one way; and a bypass pipe connecting the lower header to the second inlet/outlet pipe and guiding a discharge of a liquid refrigerant located in the lower header, and a bypass pipe valve controlling an amount of the liquid refrigerant flowing through the bypass pipe.
Abstract translation: 空调机包括压缩机; 流量切换部，其设置在所述压缩机的出口侧，根据是否进行制冷运转或制热运转来切换制冷剂的流动方向; 室外热交换器，连接到流量切换部分，并具有多个制冷剂管道，以引导与室外空气进行热交换的制冷剂; 以及与室外热交换器的一侧连接的主膨胀阀。 第一入口/出口管将流量切换部分连接到室外热交换器; 并且第二入口/出口管将室外热交换器连接到主膨胀阀，其中室外热交换器包括集管，以形成制冷剂的流动空间并具有上集管和下集管; 止回阀，设置在上集管和下集管之间，以引导制冷剂单向流动; 以及旁通管，其将下集管连接到第二入口/出口管，并且引导位于下集管中的液体制冷剂的排出;以及旁通管阀，其控制流过旁通管的液体制冷剂的量。
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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.
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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.
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