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公开(公告)号：US10088216B2
公开(公告)日：2018-10-02
申请号：US15398769
申请日：2017-01-05
Applicant: LG ELECTRONICS INC.
Inventor： Sunam Chae , Kyungseok Kim , Soyoon Kim , Heekwon Ryu
Abstract: A refrigerator that includes a compressor configured to compress a refrigerant; a condenser configured to condense the refrigerant; a first evaporator that is configured to evaporate the refrigerant, the evaporated refrigerant being configured to cool a refrigerating compartment; a second evaporator that is configured to evaporate the refrigerant, the evaporated refrigerant being configured to cool a freezing compartment; a first heat exchanger; a refrigerating-compartment expansion device that is coupled to the first heat exchanger and that is configured to expand the refrigerant and provide the expanded refrigerant to the first heat exchanger; a second heat exchanger coupled to the second evaporator; and a freezing-compartment expansion device that is coupled to the second heat exchanger and that is configured to expand the refrigerant and provide the expanded refrigerant to the second heat exchanger, wherein the first heat exchanger is configured to cool the second heat exchanger is disclosed.
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公开(公告)号：US11906243B2
公开(公告)日：2024-02-20
申请号：US17955937
申请日：2022-09-29
Applicant: LG ELECTRONICS INC.
Inventor： Seunguk Ahn , Kyungseok Kim , Sunam Chae
CPC classification number: F25D29/00 , F25D11/02 , F25D17/067 , F25D2700/122
Abstract: A method of controlling a refrigerator that includes: operating a cool air supply means with a predetermined output; a controller determining the output of the cool air supply means based on a current temperature of a storage compartment sensed by a temperature sensor while the cool air supply means operates with the predetermined output; and the controller operating the cool air supply means with the determined output. The controller determines that the output of the cool air supply means is decreased or increased when an absolute value of a difference between a previous temperature and a current temperature of the storage compartment is equal to or greater than a first reference value, and wherein the output of the cool air supply means is decreased or increased again when the absolute value of the difference between a current temperature of the storage compartment sensed again after a predetermined time has elapses and the previous temperature of the storage compartment is equal to or greater than the first reference value.
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公开(公告)号：US20230022847A1
公开(公告)日：2023-01-26
申请号：US17955937
申请日：2022-09-29
Applicant: LG ELECTRONICS INC.
Inventor： Seunguk AHN , Kyungseok Kim , Sunam Chae
Abstract: A method of controlling a refrigerator that includes: operating a cool air supply means with a predetermined output; a controller determining the output of the cool air supply means based on a current temperature of a storage compartment sensed by a temperature sensor while the cool air supply means operates with the predetermined output; and the controller operating the cool air supply means with the determined output. The controller determines that the output of the cool air supply means is decreased or increased when an absolute value of a difference between a previous temperature and a current temperature of the storage compartment is equal to or greater than a first reference value, and wherein the output of the cool air supply means is decreased or increased again when the absolute value of the difference between a current temperature of the storage compartment sensed again after a predetermined time has elapses and the previous temperature of the storage compartment is equal to or greater than the first reference value.
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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：US11835291B2
公开(公告)日：2023-12-05
申请号：US17584624
申请日：2022-01-26
Applicant: LG ELECTRONICS INC.
Inventor： Seunguk Ahn , Sunam Chae , Kyunghun Cha
CPC classification number: F25D29/003 , F25B49/022 , F25D11/022 , F25D17/065 , F25D17/067 , F25D2317/0671 , F25D2317/0682 , F25D2700/121
Abstract: The method for controlling the refrigerator includes operating a first cooling cycle for cooling the first storage compartment to operate the compressor and operating a first fan for the first storage compartment, and switching the first cooling cycle to a second cooling cycle for cooling the second storage compartment to operate the compressor and operating a second fan when a stop condition of the first cooling cycle is satisfied. A temperature of each storage compartment is sensed at sampling time intervals in each cooling cycle. Further, a cooling power of the compressor is determined for each sampling time based on a sensed current temperature of the storage compartment, and the compressor is operated at the determined cooling power.
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Patent Agency Ranking
公开(公告)号：US11732948B2
公开(公告)日：2023-08-22
申请号：US17265311
申请日：2019-08-01
Applicant: LG ELECTRONICS INC.
Inventor： Seunguk Ahn , Kyunghun Cha , Sunam Chae
CPC classification number: F25D11/022 , F25B5/02 , F25B49/022 , F25D29/00 , F25B2400/19 , F25B2500/15 , F25B2600/01 , F25B2600/02 , F25B2600/0253 , F25B2600/2511 , F25B2700/2104 , F25D2600/02 , F25D2700/12
Abstract: A method for controlling a refrigerator comprises: as a first refrigeration cycle for refrigeration of a first storage chamber is operated, operating a compressor and operating a first cold air supply; when the first refrigeration cycle has been operated for a first run time, converting to a second refrigeration cycle for refrigeration of a second storage chamber, and operating a second cold air supply; and if the second refrigeration cycle has been operated for a second run time, stopping the second refrigeration cycle. A first reference time is determined using a representative value obtained based on the temperature of the first storage chamber during a single run cycle, which includes a previous first refrigeration cycle and a previous second refrigeration cycle. A second reference time period is determined using a representative value obtained on the basis of the temperature of the second storage chamber during the single run cycle.
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公开(公告)号：US11493267B2
公开(公告)日：2022-11-08
申请号：US16628310
申请日：2018-07-05
Applicant: LG ELECTRONICS INC.
Inventor： Seunguk Ahn , Kyungseok Kim , Sunam Chae
Abstract: A method of controlling a refrigerator is disclosed. The method includes: operating a cool air supply means with a predetermined output; a controller determining the output of the cool air supply means based on a current temperature of a storage compartment sensed by a temperature sensor while the cool air supply means operates with the predetermined output; and the controller operating the cool air supply means with the determined output. The controller determines that the output of the cool air supply means is decreased or increased when an absolute value of a difference between a previous temperature and a current temperature of the storage compartment is equal to or greater than a first reference value, and wherein the output of the cool air supply means is decreased or increased again when the absolute value of the difference between a current temperature of the storage compartment sensed again after a predetermined time has elapses and the previous temperature of the storage compartment is equal to or greater than the first reference value.
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公开(公告)号：US11340009B2
公开(公告)日：2022-05-24
申请号：US17067057
申请日：2020-10-09
Applicant: LG Electronics Inc. , IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
Inventor： Sunam Chae , Kyungseok Kim , Dongrip Kim , Hanmin Jang , Heungsoo Lee
IPC: B05D5/00 , B05D3/02 , B05D3/14 , B05D1/06 , B05D1/18 , B05D5/08 , B05D7/24 , F25D23/08 , F25D21/04 , F25D11/00 , F25D17/08 , F25D21/08 , F25D23/04 , C09D5/03 , C09D5/16 , C09D167/00 , F25C5/20 , B05D3/00 , C09D5/00 , B05D5/10
Abstract: A method of manufacturing a dew formation preventing member having a super water repellent surface of the present invention comprises the steps of: mixing a particular paint and polytetrafluorethylene at a predetermined ratio; particulate painting the mixed paint on a substrate surface; and heat treating the particulate painted substrate. A method of manufacturing a dew formation preventing member having a super water repellent surface according to another aspect of the present invention comprises the steps of: immersing a substrate in an electro deposition paint, and applying a direct current to conduct electro deposition painting; heat treating the substrate that has undergone the electro deposition painting; and plasma treating the surface of the substrate that has undergone the electro deposition painting.
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公开(公告)号：US11268751B2
公开(公告)日：2022-03-08
申请号：US16571603
申请日：2019-09-16
Applicant: LG ELECTRONICS INC.
Inventor： Seunguk Ahn , Sunam Chae , Kyunghun Cha
Abstract: The method for controlling the refrigerator includes operating a first cooling cycle for cooling the first storage compartment to operate the compressor and operating a first fan for the first storage compartment, and switching the first cooling cycle to a second cooling cycle for cooling the second storage compartment to operate the compressor and operating a second fan when a stop condition of the first cooling cycle is satisfied. A temperature of each storage compartment is sensed at sampling time intervals in each cooling cycle. Further, a cooling power of the compressor is determined for each sampling time based on a sensed current temperature of the storage compartment, and the compressor is operated at the determined cooling power.
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公开(公告)号：US10330351B2
公开(公告)日：2019-06-25
申请号：US15545576
申请日：2016-01-21
Applicant: LG Electronics Inc.
Inventor： Kyeongyun Kim , Sunam Chae , Kyungseok Kim
Abstract: A refrigerator includes a first compressor configured to compress first refrigerant, a first condenser configured to condense the compressed first refrigerant, a first expansion valve configured to reduce a temperature and a pressure of the condensed first refrigerant, a first evaporator configured to evaporate the first refrigerant having passed through the first expansion valve, a second compressor configured to compress second refrigerant, a second condenser configured to condense the compressed second refrigerant, a second expansion valve configured to reduce a temperature and a pressure of the condensed second refrigerant, a second evaporator configured to evaporate the second refrigerant having passed through the second expansion valve, a first heat exchanger arranged after and connected to the first expansion valve, and a second heat exchanger arranged after and connected to the second expansion valve. The first heat exchanger and the second heat exchanger are configured to exchange heat with each other.
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