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公开(公告)号：US20240133612A1
公开(公告)日：2024-04-25
申请号：US18278059
申请日：2022-03-11
Applicant: LG ELECTRONICS INC.
Inventor： Junghun LEE , Sungwook KIM , Namgyo Lee
IPC: F25D23/00
CPC classification number: F25D23/003 , F25D2323/0021 , F25D2323/00261 , F25D2323/00271
Abstract: Proposed is a home appliance in which each of air inlets and each of air outlets formed on a machine room cover are configured to have flow rates different from each other. Accordingly, a design for the volume of air introduced into a machine room and the volume of air discharged to the outside of the machine room from the inside thereof may be facilitated.
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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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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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Patent Agency Ranking
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：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：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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