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公开(公告)号：US20220341649A1
公开(公告)日：2022-10-27
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：US20220307718A1
公开(公告)日：2022-09-29
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：US20220074640A1
公开(公告)日：2022-03-10
申请号：US17529935
申请日：2021-11-18
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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公开(公告)号：US20210207874A1
公开(公告)日：2021-07-08
申请号：US17212521
申请日：2021-03-25
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：US20240044568A1
公开(公告)日：2024-02-08
申请号：US18266561
申请日：2021-11-12
Applicant: LG ELECTRONICS INC.
Inventor： Youngseung SONG , Min Hyuk PARK , Sangbok CHOI , Yun Su CHO
IPC: F25D23/02
CPC classification number: F25D23/028 , F25D2600/00
Abstract: In a refrigerator and control method thereof according to the present disclosure, when a load operation is terminated and a normal storage operation is performed, a re-input prevention control is performed to prevent the load operation from being performed even if an operation start condition of the load operation is satisfied. During the re-input prevention control, when a re-input prevention stop condition is satisfied, the re-input prevention control is controlled to be stopped. In this way, it is possible to prevent over-cooling of a first storage compartment, which may be caused by continuous input of the load operation, and respond smoothly to the corresponding load when a large load is input.
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Patent Agency Ranking
公开(公告)号：US20230280081A1
公开(公告)日：2023-09-07
申请号：US18019440
申请日：2021-07-19
Applicant: LG ELECTRONICS INC.
Inventor： Kyong Bae PARK , Sangbok CHOI , Sungwook KIM
CPC classification number: F25D21/004 , F25D21/02
Abstract: A refrigerator in which a performance cycle for a next frost detection operation according to a logic temperature (ΔHt) checked through a frost detection operation may be changed. Thus, unnecessary power consumption may be reduced and power consumption efficiency may be improved.
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公开(公告)号：US20230175757A1
公开(公告)日：2023-06-08
申请号：US17923730
申请日：2021-04-21
Applicant: LG ELECTRONICS INC.
Inventor： Youngseung SONG , Kyongbae PARK , Yunsu CHO , Kyunghun CHA , Sangbok CHOI
CPC classification number: F25D21/002 , F25D21/08 , F25D2700/121 , F25D2700/02
Abstract: The present disclosure relates to a refrigerator. The refrigerator includes an evaporator, a defrost heater, a temperature sensor to detect an ambient temperature of the evaporator, and controller to control the defrost heater, wherein, in response to a defrosting operation start time point arriving, the controller is configured to perform a defrost operation mode including a pre-defrost cooling mode, a heater operation mode, and post-defrost cooling mode, perform a pulse operation mode in which the defrost heater is repeatedly turned on and off based on the heater operation mode, and change a magnitude of cooling power supplied in the post-defrost cooling mode based on an ON period of the defrost heater or a temperature of a cooling compartment in the pulse operation mode. Accordingly, defrosting efficiency and power consumption may be improved, and cooling power after defrosting may be efficiently supplied.
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公开(公告)号：US20210025639A1
公开(公告)日：2021-01-28
申请号：US17032566
申请日：2020-09-25
Applicant: LG ELECTRONICS INC.
Inventor： Sangbok CHOI , Kyongbae PARK , Sungwook KIM , Sung JHEE
Abstract: A method for controlling a refrigerator includes operating, for a set duration, a heating element of a sensor which responds to changes in air flow; sensing the temperature of the heating element in on or off state; and sensing residual frost on an evaporator on the basis of the difference in value of the temperature between a first sensed temperature, which is the lowest value, and a second sensed temperature, which is the highest value, from among the sensed temperatures of the heating element.
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公开(公告)号：US20190285331A1
公开(公告)日：2019-09-19
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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公开(公告)号：US20150192337A1
公开(公告)日：2015-07-09
申请号：US14589479
申请日：2015-01-05
Applicant: LG ELECTRONICS INC.
Inventor： Sangbok CHOI , Kibae LEE
IPC: F25B49/02
CPC classification number: F25B49/025 , D06F25/00 , D06F33/02 , D06F39/005 , D06F2202/12 , D06F2204/10 , D06F2210/00 , D06F2216/00 , D06F2226/00 , F25B2500/19 , F25B2600/021 , F25B2600/024 , F25B2700/151 , F25D29/00 , Y02B30/741 , Y02B40/32
Abstract: A refrigerator includes a compressor, an input current detector to detect input current of alternating current (AC) power inputted to the refrigerator, a converter to convert the inputted AC power into direct current (DC) power, a capacitor to store the converted DC power, an inverter to output AC power using the converted DC power for driving of the compressor, a DC terminal voltage detector to detect voltage at two terminals of the capacitor, and a compressor microcomputer to control the inverter and to calculate refrigerator power consumption based on the detected input current and the detected DC terminal voltage. The refrigerator enables simplified power consumption calculation.
Abstract translation: 冰箱包括压缩机，输入电流检测器，用于检测输入到冰箱的交流电（AC）电力的输入电流，转换器将输入的AC电力转换为直流（DC）电力;电容器，用于存储转换后的直流电力 使用用于驱动压缩机的转换的DC电力来输出AC电力的逆变器，用于检测电容器的两端的电压的DC端子电压检测器以及压缩机微机来控制逆变器，并基于 检测到的输入电流和检测到的直流端子电压。 冰箱可以简化功耗计算。
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