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公开(公告)号：US09377231B2
公开(公告)日：2016-06-28
申请号：US14503756
申请日：2014-10-01
Applicant: LG ELECTRONICS INC.
Inventor： Minkyu Oh , Jangseok Lee , Myungjin Chung , Chanho Jeon , Sunam Chae , Juyeong Heo , Kwangwook Kim , Hoyoun Lee
CPC classification number: F25B49/022 , F25B1/10 , F25B31/004 , F25B43/02 , F25B2400/073 , F25B2600/02 , F25B2600/2511 , F25B2700/03
Abstract: A refrigerating cycle apparatus and a method of operating the same are provided. For a refrigerating cycle having a plurality of compressors connected in series for multi-stage compression, an inner space of each compressor and a pipe of the refrigerating cycle may be connected via an oil collection pipe, and oil may be discharged into the refrigerating cycle by pressure reversal during a pressure balancing operation, so as to allow the discharged oil to be collected into a high-stage compressor or a low-stage compressor. Accordingly, an amount of oil may be uniformly maintained in each of the plurality of compressors to prevent losses due to friction and/or increases in power consumption due to a lack of oil in one or more of the compressors. The structure of a device and pipes for performing oil balancing between the compressors may be simplified to enhance efficiency of the compressors.
Abstract translation: 提供了一种制冷循环装置及其操作方法。 对于具有串联连接多级压缩的多台压缩机的制冷循环，每个压缩机的内部空间和制冷循环的管道可以经由采油管连接，并且可以通过以下方式将油排出到制冷循环中： 在压力平衡操作期间的压力反转，以便将排放的油收集到高级压缩机或低级压缩机中。 因此，可以在多个压缩机的每一个中均匀地保持一定量的油，以防止由于一个或多个压缩机中的油不足而导致的摩擦损失和/或功率消耗增加。 可以简化用于在压缩机之间执行油平衡的装置和管道的结构，以提高压缩机的效率。
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公开(公告)号：US11692770B2
公开(公告)日：2023-07-04
申请号：US16725271
申请日：2019-12-23
Applicant: LG ELECTRONICS INC.
Inventor： Jeongwon Park , Giseok Seong , Myungjin Chung , Kyungseok Kim , Jinho Kim , Tackwon Han
CPC classification number: F25D31/005 , F25D11/02 , F25D17/062 , F25D17/067 , F25D17/08 , F25D23/028 , F25D2317/061
Abstract: A refrigerator includes a cabinet formed with a chamber, a partition wall configured to partition the chamber into a storage space and an air flow path and including a discharge port and a suction port, and a heat exchanger provided in the air flow path, in which the air flow path includes a discharge flow path to guide air discharged to the discharge port, the discharge flow path has an inlet closer to a first side edge of the partition wall, and the suction port is formed closer to a vertical centerline of the partition wall than either of a first or second side edge of the partition wall.
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公开(公告)号：US11480382B2
公开(公告)日：2022-10-25
申请号：US16725071
申请日：2019-12-23
Applicant: LG ELECTRONICS INC.
Inventor： Giseok Seong , Jeongwon Park , Myungjin Chung , Kyungseok Kim , Tackwon Han , Jinho Kim , Yonghun Suh
IPC: F25D17/06 , F25D23/02 , F25D29/00 , F25D31/00 , F25D11/02 , F25D23/04 , F25B47/02 , F25D21/00 , F25D21/08 , F25D21/06
Abstract: A refrigerator includes a cabinet configured to form a first storage chamber and a second storage chamber, a first evaporator configured to cool the first storage chamber, a first fan configured to circulate air in the first storage chamber to the first evaporator and the first storage chamber, a second evaporator configured to cool the second storage chamber, a compressor configured to be connected to the first evaporator and the second evaporator, a second fan configured to circulate air in the second storage chamber to the second evaporator and the second storage chamber; a refrigerant valve configured to guide refrigerant to the first evaporator or the second evaporator, and a controller configured to perform a plurality of modes sequentially to defrost the second evaporator.
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公开(公告)号：US10941969B2
公开(公告)日：2021-03-09
申请号：US15780587
申请日：2016-12-12
Applicant: LG ELECTRONICS INC.
Inventor： Myungjin Chung , Kyeongyun Kim , Kyungseok Kim , Soyoon Kim , Seunguk Ahn , Kyunghun Cha
Abstract: A control method for a refrigerator includes sensing a temperature of a storage room; operating a cool air supply at a cooling power when the sensed temperature of the storage room is equal to or above a first reference temperature; operating the cool air supply at a delay power, which is less than the cooling power, when the sensed temperature of the storage room is equal to or below a second reference temperature, which is less than the first reference temperature while the cool air supply is operating at the cooling power; and adjusting the cooling power or the delay power of the cool air supply according to the temperature of the storage room while the cool air supply is operating at the delay power, and operating the cool air supply at the determined adjusted cooling power or delay power.
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公开(公告)号：US10928126B2
公开(公告)日：2021-02-23
申请号：US16238808
申请日：2019-01-03
Applicant: LG ELECTRONICS INC.
Inventor： Myungjin Chung , Kyungseok Kim , Kyeongyun Kim , Giseok Seong , Seunguk Ahn
Abstract: A refrigerator includes a wine chamber, a wine chamber evaporator, a compressor, a wine chamber heater, a valve, a wine chamber temperature sensor, and a controller. The controller selectively performs a cooling mode and a heating mode.
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Patent Agency Ranking
公开(公告)号：US10775094B2
公开(公告)日：2020-09-15
申请号：US15947069
申请日：2018-04-06
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghun Cha , Soyoon Kim , Myungjin Chung , Kyungseok Kim
Abstract: A refrigerator according to an embodiment includes: a duct dividing the inside of a storage compartment body into a storage compartment and an air channel and having a main discharge port and a sub-discharge port; an air guide dividing the air channel into a first channel communicating with the main discharge port and a second channel guiding air in the first channel to the sub-discharge port; a heat exchanger provided in the first channel; and a fan suctioning air in the storage compartment and sending the air to the first channel. According to the refrigerator, it is possible to maximize the volume of the storage compartment and separately discharge air to the main discharge port and the sub-discharge port, using a simple structure.
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公开(公告)号：US10041716B2
公开(公告)日：2018-08-07
申请号：US15030038
申请日：2015-06-18
Applicant: LG ELECTRONICS INC.
Inventor： Sangbong Lee , Hyoungkeun Lim , Myungjin Chung
Abstract: Provided is a refrigerator. The refrigerator includes a main body including a refrigerating compartment and a freezing compartment, a machine room defined in a lower portion of the main body and in which a base is disposed, a compressor placed on the base to compress a refrigerant, a condenser placed on the base, the condenser being disposed at one side of the compressor, a valve device into which the refrigerant condensed in the condenser is introduced, the valve device including a plurality of discharge parts for discharging the refrigerant, a plurality of expansion devices connected to the plurality of discharge parts, and a plurality of evaporators including a first evaporator and a second evaporator which are connected to the plurality of expansion devices. The valve device is disposed inclined at a set angle toward one discharge part of the plurality of discharge parts with respect to a virtual line that is perpendicular to the base.
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公开(公告)号：US09982927B2
公开(公告)日：2018-05-29
申请号：US14531431
申请日：2014-11-03
Applicant: LG ELECTRONICS INC.
Inventor： Sangbong Lee , Jangseok Lee , Hyoungkeun Lim , Myungjin Chung
IPC: F25D17/06 , F25B39/02 , F25B49/02 , F25B5/02 , F25D11/02 , F25D29/00 , F25B1/00 , F25D11/00 , F25B1/10
CPC classification number: F25B49/02 , F25B1/005 , F25B1/10 , F25B5/02 , F25B2600/01 , F25B2600/0251 , F25B2600/2507 , F25D11/00 , F25D11/022 , F25D29/00 , F25D2700/12 , Y02B40/32
Abstract: Provided are a refrigerator and a method of controlling the refrigerator. The method includes driving a refrigerating cycle that includes a first evaporator and a second evaporator by activating a compressor and simultaneously supplying cold air to a refrigerator compartment and a freezer compartment by supplying refrigerant to the first and second evaporators according to the driving of the refrigerating cycle. The method may further include preventing the refrigerant from being introduced into the second evaporator by more than a first prescribed amount by increasing, for a first prescribed amount of time, a flow rate of the refrigerant supplied to the first evaporator; and preventing the refrigerant from being introduced into the first evaporator by more than a second prescribed amount by increasing, for a second prescribed amount of time, a flow rate of the refrigerant supplied to the second evaporator.
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公开(公告)号：US09933188B2
公开(公告)日：2018-04-03
申请号：US14453324
申请日：2014-08-06
Applicant: LG ELECTRONICS INC.
Inventor： Hyoungkeun Lim , Sangbong Lee , Jangseok Lee , Myungjin Chung
CPC classification number: F25B5/02 , F25B1/10 , F25B41/062 , F25B49/02 , F25B2341/0661 , F25B2600/112 , F25B2600/21 , F25B2600/2511 , F25D11/022 , Y02B30/743 , Y02B40/32
Abstract: Provided are a refrigerator and a control method thereof. The refrigerator includes a compressor, a condenser, a refrigerant tube guiding a flow of the refrigerant condensed in the condenser, a plurality of expansion devices, a plurality of evaporators including first and second evaporators to evaporate the refrigerant decompressed in the plurality of expansion devices, a plurality of first evaporation passages in which a portion of the plurality of expansion devices is disposed, the plurality of first evaporation passages guiding introduction of the refrigerant into the first evaporator of the plurality of evaporators, a second evaporation passage in which the other portion of the plurality of expansion devices is disposed, the second evaporation passage guiding introduction of the refrigerant into the second evaporator and a flow adjusting unit to branch the refrigerant into the plurality of first evaporation passages and the second evaporation passage.
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公开(公告)号：US09733009B2
公开(公告)日：2017-08-15
申请号：US14531286
申请日：2014-11-03
Applicant: LG Electronics Inc.
Inventor： Sangbong Lee , Jangseok Lee , Hyoungkeun Lim , Myungjin Chung , Minkyu Oh
CPC classification number: F25D11/022 , F25B1/005 , F25B1/10 , F25B5/02 , F25B43/00 , F25B49/02 , F25B2341/0662 , F25B2400/13 , F25B2400/23 , F25B2600/2507 , F25D29/00
Abstract: A refrigerant is provided that may include at least one compressor that compresses a refrigerant, a condenser that condenses the refrigerant compressed in the at least one compressor, a first expansion device that decompresses the refrigerant condensed in the condenser, a gas/liquid separator that separates the refrigerant decompressed in the first expansion device into a liquid refrigerant and a gaseous refrigerant, first and second evaporators, to which the liquid refrigerant separated in the gas/liquid separator may be introduced, and a second expansion device disposed at an inlet-side of the second evaporator to decompress the refrigerant.
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