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公开(公告)号：US11549740B2
公开(公告)日：2023-01-10
申请号：US16965273
申请日：2018-12-21
Applicant: LG ELECTRONICS INC.
Inventor： Sungwook Kim , Kyongbae Park , Sangbok Choi , Yunsu Cho
Abstract: There is disclosed a controlling method for a refrigerator comprising: a first defrosting step of performing defrosting for an evaporator, the first defrosting step which ends when the temperature of the evaporator reaches a first temperature; a pressure difference sensing step of measuring a difference between the pressure in a first through-hole arranged between an inlet hole for drawing air from a storage compartment and the evaporator and the pressure in a second through-hole arranged between an outlet hole for discharging air towards the storage compartment and the evaporator by using one differential pressure sensor; and a second defrosting step of performing additional defrosting for the evaporator when the measured pressure difference is a preset pressure or more.
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公开(公告)号：US09746225B2
公开(公告)日：2017-08-29
申请号：US14146483
申请日：2014-01-02
Applicant: LG Electronics Inc.
Inventor： Yonghwan Eom , Kibae Lee , Sangbok Choi , Namki Lee , Chungill Lee
CPC classification number: F25B49/02 , F25B5/02 , F25B2700/151
Abstract: A refrigerator includes a motor to drive a compressor, an output current detector to detect an output current flowing to the motor, a compressor controller to calculate a power consumed in the compressor based on the detected output current, a plurality of power consuming units, and a main controller to receive the calculated compressor power consumption information, and when the plurality of power consuming units operate, to calculate a final power consumption using power consumption information stored for each power consuming unit and the calculated compressor power consumption information. Accordingly, computation of a power consumption may be simply performed.
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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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Patent Agency Ranking
公开(公告)号：US20200370814A1
公开(公告)日：2020-11-26
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 includes 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 at the cold air duct so as to allow a portion of the flow of air to bypass the evaporator; a sensor disposed in the bypass passage and including a sensor housing, a sensor PCB, a heating element, a temperature element for sensing a temperature of the heating element, and a molding material with which the sensor housing is filled; a defroster for removing frost formed on the surface of the evaporator; and a control unit for controlling the defroster on the basis of the value output from the sensor.
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公开(公告)号：US20150192346A1
公开(公告)日：2015-07-09
申请号：US14589383
申请日：2015-01-05
Applicant: LG ELECTRONICS INC.
Inventor： Kibae LEE , Yonghwan Eom , Sangbok Choi
Abstract: A refrigerator includes a compressor, a capacitor to store direct current (DC) power, an inverter to convert the DC power into alternating current (AC) power and to output the AC power for driving of the compressor, a defrosting heater to operate using the AC power from the inverter, a switching unit connected between the inverter and the defrosting heater to supply the AC power from the inverter to at least one of the defrosting heater or the compressor, and a compressor microcomputer to control the inverter. The refrigerator enables simplified driving of the defrosting heater using AC power output from the inverter.
Abstract translation: 冰箱包括压缩机，用于存储直流（DC）电力的电容器，将直流电力转换为交流（AC）电力并输出用于驱动压缩机的交流电力的逆变器，除霜加热器， 来自变频器的交流电源，连接在逆变器和除霜加热器之间的开关单元，用于将来自逆变器的交流电力提供给除霜加热器或压缩机中的至少一个，以及用于控制逆变器的压缩机微型计算机。 冰箱可以使用逆变器的交流电源输出简化驾驶除霜加热器。
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公开(公告)号：US12270593B2
公开(公告)日：2025-04-08
申请号：US18019730
申请日：2021-07-19
Applicant: LG ELECTRONICS INC
Inventor： Kyong Bae Park , Sangbok Choi , Sungwook Kim
Abstract: A refrigerator includes a first heater, a second heater, and a third heater, and the third heater is located inside a frost detection flow path and generates heat. Accordingly, during a defrosting operation, the inside of the frost detection flow path may be prevented from being blocked. Or freezing of the frost check sensor provided in the frost detection flow path may be prevented.
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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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