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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：US11761697B2
公开(公告)日：2023-09-19
申请号：US17491603
申请日：2021-10-01
Applicant: LG ELECTRONICS INC.
Inventor： Hyungjoon Kim , Junseong Park , Daehyoung Kim , Yongcheol Sa
CPC classification number: F25B49/02 , F25B13/00 , F25B31/004 , F25B43/02 , F25B2313/0231 , F25B2313/0233 , F25B2313/02741
Abstract: A multi-air conditioner for heating/cooling operations, including at least one indoor unit for heating/cooling operations including an indoor heat exchanger; and an outdoor unit for heating/cooling operations 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. The outdoor unit includes a receiver that 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 using the receiver, the receiver which is not used in the heating mode may be converted and used for oil storage, thereby preventing oil burnout without adding structure.
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公开(公告)号：US11499727B2
公开(公告)日：2022-11-15
申请号：US16738289
申请日：2020-01-09
Applicant: LG Electronics Inc.
Inventor： Donghwi Kim , Hyungjoon Kim , Junseong Park , Yongcheol Sa
IPC: F24F1/16 , F28F27/02 , F25B41/40 , F24F13/30 , F24F1/0063 , F25B13/00 , F25B41/26 , F25B41/31 , F25B41/34
Abstract: An air conditioning apparatus includes a heat exchange device that connects an outdoor unit to an indoor unit and that includes a heat exchanger configured to perform heat exchange between refrigerant and water. The heat exchanger reduces an amount of refrigerant used to perform a cooling operation or a heating operation.
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公开(公告)号：US11300337B2
公开(公告)日：2022-04-12
申请号：US16482788
申请日：2018-02-01
Applicant: LG ELECTRONICS INC.
Inventor： Jaehwa Jung , Daehyoung Kim , Junseong Park , Pilhyun Yoon
Abstract: An outdoor system for an air conditioner may include at least one outdoor unit, the at least one outdoor unit including a compressor; an outdoor heat exchanger; a pair of two-stage compression lines that extends to outside of the outdoor system; a pair of connection lines that extends to the outside of the outdoor system and communicates with an indoor unit; and multiple valves that open/close 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 a two-stage heating mode.
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公开(公告)号：US20130192809A1
公开(公告)日：2013-08-01
申请号：US13742866
申请日：2013-01-16
Applicant: LG Electronics Inc.
Inventor： Kakjoong Kim , Donghwi Kim , Yongcheol Sa , Junseong Park
IPC: F28F1/00
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.
Abstract translation: 空调机包括压缩机和热交换器。 所述热交换器包括：第一集管，其具有由所述压缩机压缩的制冷剂流入其中;热交换单元，包括多个第一制冷管和多个第二制冷管，以使制冷剂与空气热交换;多个第一 将所述第一集管与所述热交换单元中的对应的第一制冷管连接的集管分支管，具有在所述热交换单元中热交换的所述制冷剂在所述空气冷却运转中通过的旁通管，以及具有 通过旁通管的制冷剂在其中流动。 多个第二总管分支管将第二总管与相应的第二制冷管连接在热交换单元中，其中至少两个第一制冷管在其间具有至少一个第二制冷管。
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Patent Agency Ranking
公开(公告)号：US11735989B2
公开(公告)日：2023-08-22
申请号：US17037129
申请日：2020-09-29
Applicant: LG ELECTRONICS INC.
Inventor： Junseong Park , Euisuk Jung , Seungjin Oh , Hajeong Lee
CPC classification number: H02K17/08 , F25B31/026 , H02K17/165
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：US11079129B2
公开(公告)日：2021-08-03
申请号：US16486081
申请日：2018-02-06
Applicant: LG Electronics Inc.
Inventor： Daehyoung Kim , Junseong Park , Jaehwa Jung
Abstract: An air conditioner is disclosed. 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：US10443911B2
公开(公告)日：2019-10-15
申请号：US15220138
申请日：2016-07-26
Applicant: LG ELECTRONICS INC.
Inventor： Donghwi Kim , Junseong Park , Ilyoong Shin
Abstract: An air conditioner system including a compressor, a condenser, an expander, an evaporator, and a bypass pipeline that guides the evaporated refrigerant from the evaporator to the condenser, wherein the bypass pipeline includes: a first bypass pipe configured to guide at least some of the evaporated refrigerant from the evaporator to the condenser; a second bypass pipe attached to the first bypass pipe to allow heat exchange between refrigerant in the condenser and refrigerant therein; and a third bypass pipe coupled to the second bypass pipe to guide the refrigerant from the second bypass pipe out of the condenser.
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公开(公告)号：US10401059B2
公开(公告)日：2019-09-03
申请号：US15408228
申请日：2017-01-17
Applicant: LG ELECTRONICS INC.
Inventor： Donghwi Kim , Junseong Park , Ilyoong Shin
Abstract: An air conditioner including a compressor, an outdoor heat exchanger, an indoor heat exchanger, a switching valve for guiding refrigerant discharged from the compressor to the outdoor heat exchanger during a cooling operation and to the indoor heat exchanger during a heating operation, and an injection module for injecting a portion of the refrigerant discharged from the indoor heat exchanger to the compressor, performing heat exchange between a portion of the refrigerant discharged from the indoor heat exchanger and the refrigerant that moves from the outdoor heat exchanger to the indoor heat exchanger during the cooling operation, and injecting the refrigerant into the compressor.
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公开(公告)号：US09897351B2
公开(公告)日：2018-02-20
申请号：US14712600
申请日：2015-05-14
Applicant: LG ELECTRONICS INC.
Inventor： Donghwi Kim , Ilyoong Shin , Junseong Park
IPC: F25B30/02 , F25B39/00 , F28D1/02 , F25B13/00 , F24F1/14 , F24F1/30 , F28F17/00 , F28D1/047 , F25B39/02 , F25B41/00 , F28F9/02
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.
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