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公开(公告)号：US20220146191A1
公开(公告)日：2022-05-12
申请号：US17584624
申请日：2022-01-26
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：US10969155B2
公开(公告)日：2021-04-06
申请号：US15994538
申请日：2018-05-31
Applicant: LG ELECTRONICS INC.
Inventor： Sunam Chae , Kyungseok Kim , Soyoon Kim , Kyunghun Cha
Abstract: A refrigerator includes a cabinet including a storage compartment, a storage compartment door to open or close the storage compartment, a cool air duct provided in the storage compartment and positioned at an upper portion of the storage compartment to discharge cool air to the storage compartment, a damper to adjust an amount of cool air introduced into the cool air duct, and a door discharge duct communicating with the cool air duct and extending in a front-rear direction toward the storage compartment door to discharge cool air received from the cool air duct to the storage compartment door.
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公开(公告)号：US10145608B2
公开(公告)日：2018-12-04
申请号：US15304002
申请日：2015-04-14
Applicant: LG ELECTRONICS INC.
Inventor： Sunam Chae , Kyungseok Kim , Kyeongyun Kim
Abstract: A refrigerator including a refrigerator body including a refrigerating compartment and a freezing compartment, a refrigerating compartment cooling circuit including a refrigerating compartment compressor for compressing refrigerant, a refrigerating compartment condenser, a refrigerating compartment expansion unit, and a refrigerating compartment evaporator for causing the refrigerant to exchange heat with the refrigerating compartment; a freezing compartment cooling circuit including a freezing compartment compressor for compressing refrigerant, a freezing compartment condenser, a freezing compartment expansion unit, and a freezing compartment evaporator; a refrigerating compartment temperature sensor; a freezing compartment temperature sensor; and a control unit for controlling the refrigerating compartment compressor and the freezing compartment compressor to be concurrently operated so as to proceed to a concurrent operation mode when the refrigerating compartment and the freezing compartment are under a concurrent cooling condition, and for controlling one or both of the refrigerating compartment compressor and the freezing compartment compressor to be operated so as to proceed to a selective operation mode in consideration of a previous operation state when the refrigerating compartment and the freezing compartment are under a selective cooling condition.
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公开(公告)号：US11879681B2
公开(公告)日：2024-01-23
申请号：US17265068
申请日：2019-08-01
Applicant: LG ELECTRONICS INC.
Inventor： Seunguk Ahn , Kyunghun Cha , Sunam Chae
CPC classification number: F25D11/022 , F25B5/02 , F25B49/02 , F25D29/00 , F25B2400/19 , F25B2600/01 , F25B2600/2511 , F25B2700/2104 , F25D2700/121
Abstract: A refrigerator control method of the present embodiment comprises the steps of: operating a compressor by operating a first cooling cycle for cooling a first storage chamber, and operating a first cold air supply means for the first storage chamber; and operating the compressor by switching into a second cooling cycle for cooling a second storage chamber, and operating a second cold air supply means, when a stop condition of the first cooling cycle is satisfied, wherein the cooling capacity of the compressor in the current second cooling cycle is determined on the basis of the representative temperature of the second storage chamber during one operating cycle which includes the previous first cooling cycle and the previous second cooling cycle, and a control unit performs control such that the compressor is operated in the current second cooling cycle with the determined cooling capacity.
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公开(公告)号：US11150012B2
公开(公告)日：2021-10-19
申请号：US16621731
申请日：2018-06-12
Applicant: LG ELECTRONICS INC.
Inventor： Seunguk Ahn , Sunam Chae , Kyungseok Kim
Abstract: A method of controlling a refrigerator includes: controlling a cooling unit such that an output of the cooling unit becomes a first reference output for a first reference time previously determined; controlling the cooling unit such that the output of the cooling unit becomes a second reference output for a second reference time previously determined; calculating a representative value of a temperature of a storage compartment for an operating period, which is made by a sum of the first reference time and the second reference time, and comparing the calculated representative value with a specific temperature in a temperature satisfying range of the storage compartment; and varying, by a control unit, at least one of the first reference time and the second reference time depending on a comparison result between the specific temperature and the representative value and controlling operating of the cooling unit based on a varied reference time.
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Patent Agency Ranking
公开(公告)号：US20150068229A1
公开(公告)日：2015-03-12
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
IPC: F25B49/02
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：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：US12270598B2
公开(公告)日：2025-04-08
申请号：US17775399
申请日：2020-11-03
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghun Cha , Namsoo Cho , Sunam Chae
Abstract: According to the present disclosure, a method for controlling a refrigerator includes operating a cooling device at a previously-determined output for cooling a storage space; measuring, by a temperature sensor, a temperature of the storage space in unit times; determining a representative temperature of the storage space based on the temperature measured by the temperature sensor, and determining whether the determined representative temperature of the storage space falls within a convergence temperature range, when an output change time is reached after the output of the cooling device is previously determined; maintaining the output of the cooling device or determining the output of the cooling device according to one of a plurality of methods including a first method and a second method when the representative temperature of the storage space falls within the convergence temperature range, and determining the output of the cooling device according to the second method when the representative temperature of the storage space is out of the convergence temperature range; and operating the cooling device at the determined output.
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