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公开(公告)号：US12235005B2
公开(公告)日：2025-02-25
申请号：US17637256
申请日：2020-08-20
Applicant: LG ELECTRONICS INC.
Inventor： Sungwook Kim , Sangbok Choi , Namsoo Cho
IPC: F24F11/63
Abstract: A method of controlling a refrigerator including a cold air generator and a cold air transmission unit includes, when a temperature of the storage compartment becomes equal to or greater than a first reference temperature, operating the cold air generator with predetermined cooling power and turning on and operating the cold air transmitter with predetermined output, upon determining that the temperature of the storage compartment becomes equal to or less than a second reference temperature lower than the first reference temperature, turning off the cold air transmitter, and, upon determining that the temperature of the storage compartment becomes equal to or greater than the first reference temperature, turning on the cold air transmitter again, wherein a controller determines operation output of the cold air transmitter based on the cooling power of the cold air generator.
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公开(公告)号：US11530866B2
公开(公告)日：2022-12-20
申请号：US16992669
申请日：2020-08-13
Applicant: LG ELECTRONICS INC.
Inventor： Sungwook Kim , Kyongbae Park , Sangbok Choi , Sung Jhee
Abstract: A refrigerator of the present invention comprises: an inner case forming a storage compartment; a cold air duct guiding the flow of air within the storage compartment and forming a heat exchange space with the inner case; an evaporator disposed in the heat exchange space between the inner case and the cold air duct; a bypass passage disposed in the cold air duct so as to allow the flow of air to bypass the evaporator; a sensor disposed in the bypass flow channel and comprising a sensor housing, a sensor PCB received in the sensor housing, a heating element installed on the sensor PCB so as to generate heat when an electric current is applied thereto, a temperature element for sensing the temperature of the heating element, and a molding material with which the sensor housing is filled; a drfrosting means for removing frost formed on the surface of the evaporator; and a control unit for controlling the defrosting means on the basis of the value output from the sensor.
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公开(公告)号：US11231219B2
公开(公告)日：2022-01-25
申请号：US16348711
申请日：2017-11-10
Applicant: LG Electronics Inc.
Inventor： Sungwook Kim , Sangbok Choi , Wookyung Baik , Kyongbae Park
Abstract: The present invention provides a control method of a refrigerator, comprising: a first defrosting step of defrosting an evaporator and terminating the defrosting when the evaporator reaches a first temperature; a step of detecting pressure difference by means of a differential pressure sensor for measuring pressure difference between a first thru-hole, disposed between the evaporator and an inlet through which air flows in from a storage compartment, and a second thru-hole disposed between the evaporator and an outlet through which the air is discharged into the storage compartment; and a second defrosting step of additionally defrosting the evaporator if the measured pressure difference is greater than a configured pressure.
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Patent Agency Ranking
公开(公告)号：US11079162B2
公开(公告)日：2021-08-03
申请号：US16072342
申请日：2017-01-25
Applicant: LG Electronics Inc.
Inventor： Sangbok Choi , Yonghwan Eom , Kyongbae Park , Juyeong Heo , Cholok Han , Sungwook Kim , Wookyung Baik
Abstract: The present invention provides a refrigerator comprising: a cabinet having a storage chamber; a door for opening or closing the storage chamber; a case in which an inlet through which air flows from the storage chamber and an outlet through which the air is discharged to the storage chamber are formed; an evaporator provided inside the case for exchanging heat with the air to supply cool air; and a differential pressure sensor provided inside the case.
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公开(公告)号：US10976095B2
公开(公告)日：2021-04-13
申请号：US15964387
申请日：2018-04-27
Applicant: LG Electronics Inc.
Inventor： Soonkyu Lee , Sungwook Kim , Kyongbae Park , Sangbok Choi
Abstract: A method for controlling a refrigerator includes providing an initial input value to a heater configured to supply heat to an evaporator, performing a continuous operation of the heater based on the initial input value to increase a temperature of the evaporator to a predetermined temperature, determining a period of time taken to increase the temperature of the evaporator to the predetermined temperature, determining whether the period of time is within a reference period of time, operating the heater based on a first input value that is equal to the initial input value based on a determination that the period of time is outside of the reference period of time, and operating the heater based on a second input value that is less than the initial input value based on a determination that the period of time is within the reference period of time.
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公开(公告)号：US12169089B2
公开(公告)日：2024-12-17
申请号：US17773980
申请日：2020-10-12
Applicant: LG ELECTRONICS INC.
Inventor： Sungwook Kim , Sangbok Choi , Namsoo Cho
Abstract: A method for controlling a refrigerator, includes turning off a cold air transmission unit as a temperature of a storage compartment becomes equal to or less than a second reference temperature while a cold air generator is operated, turning on the cold air transmission unit, upon determining that the temperature of the storage compartment is equal to or greater than a first reference temperature which is greater than the second reference temperature, and calculating, by a controller, an operating ratio of the cold air transmission unit based on ON and OFF time of the cold air transmission unit, determining an output of the cold air transmission unit based on the operating ratio of the cold air transmission unit, and operating the cold air transmission unit with the determined output, upon determining that the temperature of the storage compartment is equal to or less than the second reference temperature.
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公开(公告)号：US11668512B2
公开(公告)日：2023-06-06
申请号：US17212521
申请日：2021-03-25
Applicant: LG Electronics Inc.
Inventor： Soonkyu Lee , Sungwook Kim , Kyongbae Park , Sangbok Choi
CPC classification number: F25D21/004 , F25D17/067 , F25D21/002 , F25D21/08 , F25D2321/1413 , F25D2600/02 , F25D2700/10
Abstract: A method for controlling a refrigerator includes providing an initial input value to a heater configured to supply heat to an evaporator, performing a continuous operation of the heater based on the initial input value to increase a temperature of the evaporator to a predetermined temperature, determining a period of time taken to increase the temperature of the evaporator to the predetermined temperature, determining whether the period of time is within a reference period of time, operating the heater based on a first input value that is equal to the initial input value based on a determination that the period of time is outside of the reference period of time, and operating the heater based on a second input value that is less than the initial input value based on a determination that the period of time is within the reference period of time.
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公开(公告)号：US20210055034A1
公开(公告)日：2021-02-25
申请号：US17012993
申请日：2020-09-04
Applicant: LG ELECTRONICS INC.
Inventor： Sangbok Choi , Kyongbae Park , Sungwook Kim , Sung Jhee
Abstract: A control method of a refrigerator includes the steps in which: a heating element of a sensor which is responsive to a change in the flow rate of air is turned off after being turned on for a predetermined period of time; a first sensing temperature (Ht1) of the heating element is sensed in a state in which the heating element is on, and a second sensing temperature (Ht2) of the heating element is sensed in a state in which the heating element is off; and a defrosting operation of removing frost on an evaporator is determined on the basis of the temperature difference value between the first sensing temperature (Ht1) and the second sensing detection temperature (Ht2).
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