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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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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：US20240230215A9
公开(公告)日：2024-07-11
申请号：US18266768
申请日：2021-11-12
Applicant: LG ELECTRONICS INC.
Inventor： Youngseung Song , Min Hyuk Park , Sangbok Choi , Yun Su Cho
IPC: F25D29/00
CPC classification number: F25D29/00 , F25D2500/04 , F25D2600/02 , F25D2700/02 , F25D2700/121
Abstract: According to the present disclosure, after a load operation is performed by satisfying a start condition of the load operation, the load operation is terminated when a compartment temperature of a storage compartment satisfies a termination condition when a door is opened or when a temperature change in the storage compartment satisfies the termination condition. Accordingly, excessive power consumption during the load operation may be prevented, and thus power consumption may be improved.
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公开(公告)号：US20240133621A1
公开(公告)日：2024-04-25
申请号：US18266768
申请日：2021-11-12
Applicant: LG ELECTRONICS INC.
Inventor： Youngseung Song , Min Hyuk Park , Sangbok Choi , Yun Su Cho
IPC: F25D29/00
CPC classification number: F25D29/00 , F25D2500/04 , F25D2600/02 , F25D2700/02 , F25D2700/121
Abstract: According to the present disclosure, after a load operation is performed by satisfying a start condition of the load operation, the load operation is terminated when a compartment temperature of a storage compartment satisfies a termination condition when a door is opened or when a temperature change in the storage compartment satisfies the termination condition. Accordingly, excessive power consumption during the load operation may be prevented, and thus power consumption may be improved.
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Patent Agency Ranking
公开(公告)号：US11867448B2
公开(公告)日：2024-01-09
申请号：US17032566
申请日：2020-09-25
Applicant: LG ELECTRONICS INC.
Inventor： Sangbok Choi , Kyongbae Park , Sungwook Kim , Sung Jhee
CPC classification number: F25D21/006 , F25D21/02 , F25D21/08 , F25D2700/02
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：US20230288124A1
公开(公告)日：2023-09-14
申请号：US18019764
申请日：2021-07-19
Applicant: LG ELECTRONICS INC.
Inventor： Kyong Bae Park , Sangbok Choi , Sungwook Kim
CPC classification number: F25D21/02 , F25D21/06 , F25D21/006
Abstract: A refrigerator is designed considering pressure distribution around a cooling fan with respect to a fluid outlet of a frost detecting device provided for frosting detection, so that the design may be efficiently perform with respect to the frost detecting device and precise frosting detection may be performed.
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公开(公告)号：US20230160625A1
公开(公告)日：2023-05-25
申请号：US17923485
申请日：2021-04-21
Applicant: LG ELECTRONICS INC.
Inventor： Youngseung Song , Kyongbae Park , Yunsu Cho , Sangbok Choi , Namsoo Cho
IPC: F25D21/08
CPC classification number: F25D21/08 , F25D2700/10 , F25D2321/00
Abstract: The present disclosure relates to a refrigerator. The refrigerator according to an embodiment of the present disclosure comprises: an evaporator; a defrost heater; a temperature sensor to sense ambient temperature around the evaporator; and a controller to control the defrost heater, wherein the controller is configured to: perform a defrost operation mode in a case of reaching a defrosting operation start time point; perform, based on the defrost operation mode, a continuous operation mode in which the defrost heater is continuously turned on, and a pulse operation mode in which the defrost heater is repeatedly turned on and off; and perform the continuous operation mode again after performing the pulse operation mode. Accordingly, defrosting efficiency may be improved, and power consumption may be reduced.
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公开(公告)号：US20210010738A1
公开(公告)日：2021-01-14
申请号：US17030888
申请日：2020-09-24
Applicant: LG Electronics Inc.
Inventor： Sangbok Choi , Kyongbae Park , Sungwook Kim , Sung Jhee
Abstract: A method for controlling a refrigerator includes operating, for a predetermined period of time, a heating element of a sensor disposed on a bypass passage which allows a portion of air to bypass an evaporator disposed in a heat-exchange space; sensing the temperature of the heating element in on or off state; and sensing the blockage of an air passage in the heat-exchange space 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：US10240841B2
公开(公告)日：2019-03-26
申请号：US14589479
申请日：2015-01-05
Applicant: LG ELECTRONICS INC.
Inventor： Sangbok Choi , Kibae Lee
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.
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