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

IPC: F25D21/00 ,  F25D21/08 ,  F25D21/02

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.

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

IPC: F25D21/00 ,  F25D17/06 ,  F25D29/00 ,  F25D21/08 ,  F25D21/02

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.

公开(公告)号：US20160356539A1

公开(公告)日：2016-12-08

申请号：US15029227

申请日：2016-01-21

Applicant: LG ELECTRONICS INC.

Inventor： Myungjin CHUNG ,  Namsoo CHO ,  Kyongbae PARK ,  Jangseok LEE

IPC: F25D21/04 ,  F25D29/00 ,  F25D23/06 ,  F25D11/02 ,  F25D23/02

CPC classification number: F25D21/04 ,  F25D11/02 ,  F25D23/02 ,  F25D23/069 ,  F25D29/00 ,  F25D29/003 ,  F25D2323/021 ,  F25D2323/023 ,  F25D2400/02 ,  F25D2700/00 ,  F25D2700/12 ,  F25D2700/14

Abstract: Provided are a refrigerator and a method for controlling the same. The refrigerator includes a cabinet defining a storage compartment, a door selectively opening or closing the storage compartment, a heater disposed in the cabinet or door to prevent dew from being formed on a surface of the cabinet or door, a refrigerator temperature sensor detecting a temperature of the storage compartment of the refrigerator, and a control unit adjusting an operation factor or output of the heater on the basis of a temperature value detected by the refrigerator temperature sensor.

Abstract translation: 提供一种冰箱及其控制方法。 冰箱包括限定储藏室的橱柜，选择性地打开或关闭储藏室的门，设置在橱柜或门中以防止在柜子或门的表面上形成露水的加热器，检测温度的冰箱温度传感器 以及控制单元，其基于由冰箱温度传感器检测到的温度值来调节加热器的运行系数或输出。

公开(公告)号：US20230175758A1

公开(公告)日：2023-06-08

申请号：US17923710

申请日：2021-04-21

Applicant: LG ELECTRONICS INC.

Inventor： Youngseung SONG ,  Kyongbae PARK ,  Yunsu CHO ,  Namsoo CHO ,  Kyunghun CHA ,  Sangbok CHOI

IPC: F25D21/00 ,  F25D21/08

CPC classification number: F25D21/006 ,  F25D21/08

Abstract: The present disclosure relates to a refrigerator. According to an embodiment of the present disclosure, the refrigerator comprises: an evaporator; a defrost heater; a temperature sensor to sense a temperature around the evaporator; and a controller to control the defrost heater. In response to reaching a defrost operation starting point, the controller is configured to perform a defrost operation mode, perform a continuous operation mode, in which the defrost heater continuously turns on, and a pulsed operation mode, in which the defrost heater switches between on and off, based on the defrost operation mode, wherein in response to performing the pulsed operation mode, the controller is configured to change the ON duration or power level of the defrost heater. Accordingly, defrosting efficiency may be improved, and power consumption may be reduced.

公开(公告)号：US20200370815A1

公开(公告)日：2020-11-26

申请号：US16991479

申请日：2020-08-12

Applicant: LG ELECTRONICS INC.

Inventor： Sungwook KIM ,  Kyongbae PARK ,  Sangbok CHOI ,  Sung JHEE

IPC: F25D21/00 ,  F25D21/02

Abstract: A refrigerator includes an inner case defining a storage chamber; a cold-air duct for guiding air flowing in the storage chamber and forming a heat exchange space, together with the inner case; an evaporator positioned in the heat exchange space; a bypass passage disposed at the cold-air duct and allowing air to flow while bypassing the evaporator; a sensor disposed in the bypass passage and having an output value which changes according to the flow rate of the air flowing through the bypass passage; a defroster for removing frost generated on a surface of the evaporator; and a controller for controlling the defroster on the basis of the value output by the sensor.

公开(公告)号：US20200056833A1

公开(公告)日：2020-02-20

申请号：US16348765

申请日：2017-11-10

Applicant: LG Electronics Inc.

Inventor： Kyongbae PARK ,  Sungwook KIM ,  Wookyung BAIK ,  Soonkyu LEE ,  Sangbok CHOI

IPC: F25D29/00 ,  F25D21/00 ,  F25D21/02 ,  F25D21/08

Abstract: The present invention provides a method for controlling a refrigerator comprising: 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.

公开(公告)号：US20190277554A1

公开(公告)日：2019-09-12

申请号：US16349103

申请日：2017-11-10

Applicant: LG ELECTRONICS INC.

Inventor： Kyongbae PARK ,  Wookyung BAIK ,  Sangbok CHOI ,  Sungwook KIM

IPC: F25D21/00 ,  F25B13/00

Abstract: The resent invention provides a refrigerator comprising: a cabinet having a storage chamber; a door for opening and closing the storage chamber; a case having a discharge port through which air is discharged to the storage chamber; an evaporator provided inside the case and for supplying cold air by means of heat exchange with air; a fan installed on the discharge port and for generating the airflow discharging to the storage chamber the air which has been heat exchanged in the evaporator; and a differential pressure sensor having a first pipe, of which one end is positioned on a part where the air is withdrawn to the fan, and a second pipe of which one end is positioned on a part where the air is discharged from the fan.

公开(公告)号：US20180313596A1

公开(公告)日：2018-11-01

申请号：US15964379

申请日：2018-04-27

Applicant: LG Electronics Inc.

Inventor： Soonkyu LEE ,  Sungwook KIM ,  Kyongbae PARK ,  Sangbok CHOI

IPC: F25D21/00 ,  F25D17/04 ,  F25D21/08

CPC classification number: F25D21/08 ,  F25D21/006 ,  F25D2600/02 ,  F25D2700/10

Abstract: A method for controlling a refrigerator includes operating a heater of the refrigerator in a first mode to increase a temperature of an evaporator of the refrigerator to a predetermined temperature, the first mode comprising a continuous operation of the heater, 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, maintaining operation of the heater in the first mode based on a determination that the period of time is outside of the reference period of time, and operating the heater in a second mode that is different from the first mode based on a determination that the period of time is within the reference period of time.