公开(公告)号：US12038219B2

公开(公告)日：2024-07-16

申请号：US17434338

申请日：2020-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Seokjun Yun ,  Hyoungkeun Lim ,  Junghun Lee ,  Hoyoun Lee

IPC: F25D11/02 ,  F25B21/04 ,  F25D17/06

CPC classification number: F25D11/025 ,  F25B21/04 ,  F25D17/062

Abstract: In a refrigerator control method according to an embodiment of the present invention, a control unit intermittently turns on a temperature sensor on a predetermined cycle when a deep-freezing chamber mode is turned off, so that the temperature sensor senses the internal temperature of a deep-freezing chamber for a first set time, and the sensed internal temperature of the deep-freezing chamber is transmitted to the control unit so as to minimize power consumption.

公开(公告)号：US11852387B2

公开(公告)日：2023-12-26

申请号：US17433567

申请日：2020-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyoungkeun Lim ,  Seokjun Yun ,  Junghun Lee ,  Hoyoun Lee

IPC: F25B21/04 ,  F25D13/04 ,  F25D23/06

CPC classification number: F25B21/04 ,  F25D13/04 ,  F25D23/069

Abstract: A refrigerator according to an embodiment of the present invention comprises an inlet port and an outlet port which are formed in a sink body forming a heat sink, so as to guide coolant inflow and coolant outflow respectively, wherein the center line of the inlet port passes through the center of a thermoelectric element attached to the heat sink.

公开(公告)号：US11280526B2

公开(公告)日：2022-03-22

申请号：US16570473

申请日：2019-09-13

Applicant: LG ELECTRONICS INC.

Inventor： Heayoun Sul ,  Minkyu Oh ,  Jeehoon Choi ,  Hyoungkeun Lim

IPC: F25B21/02 ,  F25D15/00 ,  F25D17/06 ,  F25D23/00 ,  F25D23/02 ,  F25D23/06 ,  F25D25/02 ,  F25D27/00

Abstract: A refrigerator includes a cabinet, a thermoelectric element module, a support disposed at a lower surface of the cabinet, and a heat dissipation cover coupled to a rear side of the cabinet. The thermoelectric element module includes a thermoelectric element including a heat absorption portion and a heat dissipation portion, a first heat sink contacting the heat absorption portion, a first fan facing the first heat sink, a second heat sink contacting the heat dissipation portion, a second fan exposed to an outside of the heat dissipation cover, and an insulating member between the first heat sink and the second heat sink. The heat dissipation cover is configured to guide air from the second fan in a vertical direction, and the support defines an air passage between the lower surface and a floor to allow air to be discharged to a front side through a lower side of the cabinet.

公开(公告)号：US11041663B2

公开(公告)日：2021-06-22

申请号：US16494192

申请日：2017-12-29

Applicant: LG Electronics Inc.

Inventor： Minkyu Oh ,  Heayoun Sul ,  Hyoungkeun Lim ,  Seokhyun Kim ,  Jeehoon Choi

IPC: F25B21/02 ,  F25D11/00 ,  F25D17/06 ,  F25D21/00 ,  F25D21/08 ,  F25D29/00

Abstract: A refrigerator includes a thermoelectric element module, and a defrosting temperature sensor, and a controller configured to control operation of the thermoelectric element module. The thermoelectric element module includes a thermoelectric element including a heat absorption portion and a heat dissipation portion, a first heat sink in contact with the heat absorption portion, a first fan facing the first heat sink, a second heat sink in contact with the heat dissipation portion, and a second fan facing the second heat sink. The controller is configured to initiate a natural defrosting operation for removing frost on the thermoelectric element module at every preset period, and terminate the natural defrosting operation based on a temperature measured by the defrosting temperature sensor corresponding to a reference temperature. The controller is configured to control operation of the thermoelectric element and rotation of the first and second fans in the natural defrosting operation.

公开(公告)号：US10704812B2

公开(公告)日：2020-07-07

申请号：US15918292

申请日：2018-03-12

Applicant: LG ELECTRONICS INC.

Inventor： Seokhyun Kim ,  Minkyu Oh ,  Heayoun Sul ,  Jeehoon Choi ,  Hyoungkeun Lim

IPC: F25B21/02 ,  F25B21/04 ,  F25D21/08 ,  F25B47/02 ,  F25D17/06 ,  F25D21/06

Abstract: A refrigerator may include a sensor configured to measure temperature, a thermoelectric device module having at least one fan and configured to cool the storage compartment; and a controller that controls a rotation speed of the fan. The rotation speed of the fan may be determined based on at least one of whether a storage compartment temperature condition measured by the sensor exists or whether an initial power input condition exists. The thermoelectric device module may be controlled differently in a first temperature region, in a second temperature region, and in a third temperature region of the storage compartment. When an initial power condition exist such that power is initially supplied to the refrigerator, the fan is controlled to spin at a rotation speed that exceeds a rotation speed corresponding to the third temperature region until a preset temperature within the second temperature region is reached.

公开(公告)号：US20180274825A1

公开(公告)日：2018-09-27

申请号：US15924741

申请日：2018-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Jeehoon CHOI ,  Seokhyun Kim ,  Heayoun Sul ,  Minkyu Oh ,  Hyoungkeun Lim

IPC: F25B21/02 ,  F25D17/06 ,  F25D11/00 ,  F25D23/06

CPC classification number: F25B21/02 ,  F25B2321/0251 ,  F25B2321/0252 ,  F25D11/00 ,  F25D17/062 ,  F25D19/00 ,  F25D23/003 ,  F25D23/066 ,  F25D2500/02

Abstract: A refrigerator including an inner case having a storage chamber defined therein; a thermoelectric module configured to cool the storage chamber, wherein the thermoelectric module includes a thermoelectric element and a heat sink; a heat-dissipation fan assembly provided adjacent to the heat sink; a heat-dissipation cover spaced apart from the inner case, wherein the heat-dissipation cover has at least one outer intake hole defined therein and wherein the intake hole faces the heat-dissipation fan assembly; and a gasket configured to block a gap between the heat-dissipation cover and the heat-dissipation fan assembly.

公开(公告)号：US10041716B2

公开(公告)日：2018-08-07

申请号：US15030038

申请日：2015-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Sangbong Lee ,  Hyoungkeun Lim ,  Myungjin Chung

IPC: F25D11/02 ,  F25B5/02 ,  F25B41/06 ,  F16K11/00 ,  F25B41/04

Abstract: Provided is a refrigerator. The refrigerator includes a main body including a refrigerating compartment and a freezing compartment, a machine room defined in a lower portion of the main body and in which a base is disposed, a compressor placed on the base to compress a refrigerant, a condenser placed on the base, the condenser being disposed at one side of the compressor, a valve device into which the refrigerant condensed in the condenser is introduced, the valve device including a plurality of discharge parts for discharging the refrigerant, a plurality of expansion devices connected to the plurality of discharge parts, and a plurality of evaporators including a first evaporator and a second evaporator which are connected to the plurality of expansion devices. The valve device is disposed inclined at a set angle toward one discharge part of the plurality of discharge parts with respect to a virtual line that is perpendicular to the base.

公开(公告)号：US09982927B2

公开(公告)日：2018-05-29

申请号：US14531431

申请日：2014-11-03

Applicant: LG ELECTRONICS INC.

Inventor： Sangbong Lee ,  Jangseok Lee ,  Hyoungkeun Lim ,  Myungjin Chung

IPC: F25D17/06 ,  F25B39/02 ,  F25B49/02 ,  F25B5/02 ,  F25D11/02 ,  F25D29/00 ,  F25B1/00 ,  F25D11/00 ,  F25B1/10

CPC classification number: F25B49/02 ,  F25B1/005 ,  F25B1/10 ,  F25B5/02 ,  F25B2600/01 ,  F25B2600/0251 ,  F25B2600/2507 ,  F25D11/00 ,  F25D11/022 ,  F25D29/00 ,  F25D2700/12 ,  Y02B40/32

Abstract: Provided are a refrigerator and a method of controlling the refrigerator. The method includes driving a refrigerating cycle that includes a first evaporator and a second evaporator by activating a compressor and simultaneously supplying cold air to a refrigerator compartment and a freezer compartment by supplying refrigerant to the first and second evaporators according to the driving of the refrigerating cycle. The method may further include preventing the refrigerant from being introduced into the second evaporator by more than a first prescribed amount by increasing, for a first prescribed amount of time, a flow rate of the refrigerant supplied to the first evaporator; and preventing the refrigerant from being introduced into the first evaporator by more than a second prescribed amount by increasing, for a second prescribed amount of time, a flow rate of the refrigerant supplied to the second evaporator.

公开(公告)号：US09933188B2

公开(公告)日：2018-04-03

申请号：US14453324

申请日：2014-08-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyoungkeun Lim ,  Sangbong Lee ,  Jangseok Lee ,  Myungjin Chung

IPC: F25B5/02 ,  F25B49/02 ,  F25B41/06 ,  F25D11/02 ,  F25B1/10

CPC classification number: F25B5/02 ,  F25B1/10 ,  F25B41/062 ,  F25B49/02 ,  F25B2341/0661 ,  F25B2600/112 ,  F25B2600/21 ,  F25B2600/2511 ,  F25D11/022 ,  Y02B30/743 ,  Y02B40/32

Abstract: Provided are a refrigerator and a control method thereof. The refrigerator includes a compressor, a condenser, a refrigerant tube guiding a flow of the refrigerant condensed in the condenser, a plurality of expansion devices, a plurality of evaporators including first and second evaporators to evaporate the refrigerant decompressed in the plurality of expansion devices, a plurality of first evaporation passages in which a portion of the plurality of expansion devices is disposed, the plurality of first evaporation passages guiding introduction of the refrigerant into the first evaporator of the plurality of evaporators, a second evaporation passage in which the other portion of the plurality of expansion devices is disposed, the second evaporation passage guiding introduction of the refrigerant into the second evaporator and a flow adjusting unit to branch the refrigerant into the plurality of first evaporation passages and the second evaporation passage.

公开(公告)号：US09733009B2

公开(公告)日：2017-08-15

申请号：US14531286

申请日：2014-11-03

Applicant: LG Electronics Inc.

Inventor： Sangbong Lee ,  Jangseok Lee ,  Hyoungkeun Lim ,  Myungjin Chung ,  Minkyu Oh

IPC: F25D11/02 ,  F25B5/02 ,  F25B43/00 ,  F25D29/00 ,  F25B1/00 ,  F25B49/02 ,  F25B1/10

CPC classification number: F25D11/022 ,  F25B1/005 ,  F25B1/10 ,  F25B5/02 ,  F25B43/00 ,  F25B49/02 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2600/2507 ,  F25D29/00

Abstract: A refrigerant is provided that may include at least one compressor that compresses a refrigerant, a condenser that condenses the refrigerant compressed in the at least one compressor, a first expansion device that decompresses the refrigerant condensed in the condenser, a gas/liquid separator that separates the refrigerant decompressed in the first expansion device into a liquid refrigerant and a gaseous refrigerant, first and second evaporators, to which the liquid refrigerant separated in the gas/liquid separator may be introduced, and a second expansion device disposed at an inlet-side of the second evaporator to decompress the refrigerant.