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公开(公告)号：US20230288125A1
公开(公告)日：2023-09-14
申请号：US18019941
申请日：2021-07-19
Applicant: LG ELECTRONICS INC.
Inventor： Kyong Bae PARK , Sangbok CHOI , Sungwook KIM
IPC: F25D21/02
CPC classification number: F25D21/02
Abstract: A refrigerator includes a flow path exit of a fluid introduction part and a flow path entrance of the frost detection duct that have a same size. Thus, defrost water flowing down into the fluid introduction part through a guide flow path may more efficiently flow downward without becoming stagnant and freezing of the stagnant water may be prevented.
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公开(公告)号：US20220011043A1
公开(公告)日：2022-01-13
申请号：US17483112
申请日：2021-09-23
Applicant: LG Electronics Inc.
Inventor： Kyongbae PARK , Sungwook KIM , Wookyung BAIK , Soonkyu LEE , Sangbok CHOI
Abstract: A method for controlling a refrigerator includes: a step for determining whether or not a defrosting initiation condition is satisfied with respect to an evaporator; a step for, if the defrosting initiation condition is satisfied, detecting a pressure differential by means of one differential pressure sensor for measuring the pressure differential between a first through hole, which is positioned between the evaporator and an inlet port having air flowing in from a storage chamber, and a second through hole which is positioned between the evaporator and a discharge port having air discharged to the storage chamber; and a defrosting step for variably defrosting in accordance with the measured pressure differential.
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公开(公告)号：US20210071931A1
公开(公告)日：2021-03-11
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：US20190285332A1
公开(公告)日：2019-09-19
申请号：US16349046
申请日：2017-11-10
Applicant: LG Electronics Inc.
Inventor： Sungwook KIM , Sangbok CHOI , Kyongbae PARK , Soonkyu LEE
Abstract: The present invention provides a refrigerator comprising: a cabinet provided with a storage compartment; a chamber provided with an evaporator for supplying cold air, a discharge duct through which the cold air having gone through a heat exchange by means of the evaporator is supplied to the storage compartment, and an introduction duct guiding the air in the storage compartment to the evaporator; a first temperature sensor for measuring the temperature of the evaporator; a second temperature sensor for measuring the temperature of the storage compartment; a third temperature sensor for measuring the temperature of the air supplied from the chamber to the storage compartment; and a control unit for determining the time for defrosting the evaporator on the basis of the temperatures measured by the first temperature sensor, the second temperature sensor and the third temperature sensor.
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公开(公告)号：US20240077245A1
公开(公告)日：2024-03-07
申请号：US17766645
申请日：2020-10-15
Applicant: LG ELECTRONICS INC.
Inventor： Sungwook KIM , Sangbok CHOI , Namsoo CHO
CPC classification number: F25D17/065 , F25D11/02
Abstract: A method for controlling the refrigerator includes turning off a cold air transmission unit and operating a cold air generator with cooling power, which is previously determined, as the temperature of the second storage compartment is equal to or less than a second reference temperature, turning on the cold air transmission unit and operating the cold air generator with the cooling power, which is previously determined, when the temperature of the storage compartment is equal to or greater than a first reference temperature, calculating, by a controller, an operating ratio of the cold air transmission unit based on an ON time and an OFF time of the cold air transmission unit, upon determining that the temperature of the storage compartment is equal to or less than the second reference temperature and adjusting the cooling power of the compressor based on the operating ratio of the cold air transmission unit.
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Patent Agency Ranking
公开(公告)号：US20210325103A1
公开(公告)日：2021-10-21
申请号：US17360531
申请日：2021-06-28
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：US20190072310A1
公开(公告)日：2019-03-07
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：US20180313597A1
公开(公告)日：2018-11-01
申请号：US15964387
申请日：2018-04-27
Applicant: LG Electronics Inc.
Inventor： Soonkyu LEE , Sungwook KIM , Kyongbae PARK , Sangbok CHOI
CPC classification number: F25D21/08 , F25D21/002 , F25D2600/02
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：US20230304723A1
公开(公告)日：2023-09-28
申请号：US18019337
申请日：2021-07-19
Applicant: LG ELECTRONICS INC.
Inventor： Kyong Bae PARK , Sangbok CHOI , Sungwook KIM
CPC classification number: F25D17/08 , F25D21/02 , F25D2700/121
Abstract: A refrigerator is configured such that a controller may control the frost detecting operation to be differently performed on the basis of at least one of a room temperature and a set reference temperature. Thus, precise frosting detection may be performed and power consumption due to the frosting detection may be minimized, and power consumption efficiency may be improved.
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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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