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公开(公告)号：US10684045B2
公开(公告)日：2020-06-16
申请号：US15788164
申请日：2017-10-19
Applicant: LG ELECTRONICS INC.
Inventor： Jeehoon Choi , Heayoun Sul , Seokhyun Kim , Minkyu Oh , Hyoungkeun Lim
Abstract: A thermoelectric module that has a thermoelectric element, an axial flow fan, and a heat sink and that is installed at a rear wall of the storage chamber to cool the storage chamber. The heat sink has a base configured to come in surface contact with the thermoelectric element, fins protruding from the base toward the axial flow fan and spaced apart from each other, and heat pipes having base passing portions passing through the base and fin passing portions passing through the fins and configured to transfer heat from the base to the fins. Each of the fins includes a first part arranged opposite to the hub and a second part disposed at one of both sides of the first part to face the vanes and protruding further from the base toward the axial flow fan than the first part.
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公开(公告)号：US11105541B2
公开(公告)日：2021-08-31
申请号：US15918063
申请日：2018-03-12
Applicant: LG ELECTRONICS INC.
Inventor： Seokhyun Kim , Minkyu Oh , Heayoun Sul , Hyoungkeun Lim , Jeehoon Choi
Abstract: A refrigerator may include a temperature sensor, a thermoelectric device module having a thermoelectric device, and at least one fan and configured to cool a storage compartment, and a controller that controls the output power of the thermoelectric device based on the temperature of the storage compartment, a set temperature, and the outside temperature. The output power of the thermoelectric device may be determined based on whether the temperature of the storage compartment is within a first temperature region including the set temperature, a second temperature region, or a third temperature region. In the first and second temperature regions, the thermoelectric device may operate at different output power and which gradually increases as the outside temperature increases. In the third temperature region, the thermoelectric device may operate at a third output power which exceeds the first output power and is greater than or equal to the second output power.
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公开(公告)号：US10859294B2
公开(公告)日：2020-12-08
申请号：US15926177
申请日：2018-03-20
Applicant: LG ELECTRONICS INC.
Inventor： Seokhyun Kim , Heayoun Sul , Minkyu Oh , Jeehoon Choi , Hyoungkeun Lim
Abstract: A refrigerator includes: a main body having a storage chamber; a door for opening and closing the storage chamber; a thermoelectric module for cooling the storage chamber; an outside temperature sensor for detecting an outside temperature; a storage chamber temperature sensor for detecting the storage chamber temperature; and a control unit for applying a voltage within a range between the maximum voltage and the minimum voltage to the thermoelectric module. The control unit applies the set voltage, not the maximum voltage, to the thermoelectric module when the outside temperature is the uppermost outside temperature range among the plurality of outside temperature ranges and thus the temperature of the control is lowered and power consumption is reduced.
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公开(公告)号：US11885538B2
公开(公告)日：2024-01-30
申请号：US17299705
申请日：2019-12-06
Applicant: LG ELECTRONICS INC.
Inventor： Junseong Jeong , Seokhyun Kim , Sangoh Kim
CPC classification number: F25B39/02 , F25D23/065
Abstract: A refrigerator comprising a fan to operate for supplying cold air to a cooling chamber; an RF output device disposed in the cooling chamber, and for outputting an RF signal into a cavity in the cooling chamber; and a controller for controlling the RF output device, wherein the controller is configured to output the RF signal to goods in the cavity, and to operate in a first section in which temperature of the goods falls, and a second section in which the temperature of the increases after the first section and maintains, wherein when the RF output device operates, a temperature of the cavity is higher than a temperature of other area in the cooling chamber. Accordingly, the freshness of the goods in the refrigerator can be maintained by using the RF signal.
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公开(公告)号：US11300331B2
公开(公告)日：2022-04-12
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 , F25D11/00 , F25D19/00 , F25D21/14 , F25D23/00 , F25D23/06 , F25D17/06 , F25D15/00 , F25D23/02
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.
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Patent Agency Ranking
公开(公告)号：US10731900B2
公开(公告)日：2020-08-04
申请号：US15926553
申请日：2018-03-20
Applicant: LG ELECTRONICS INC.
Inventor： Seokhyun Kim , Heayoun Sul , Minkyu Oh , Jeehoon Choi , Hyoungkeun Lim
Abstract: A refrigerator includes: a control unit for controlling a thermoelectric module, a cooling fan, and a heat-radiation fan, in which when the outside temperature exceeds the set temperature, the control unit rotates each of the cooling fan and the heat-radiation fan at a high-speed, in which, when the outside temperature is equal to or lower than the set temperature and the storage chamber temperature is in the upper limit range, the control unit rotates each of the cooling fan and the heat-radiation fan at a medium-speed lower than a high-speed, and in which, when the outside temperature is equal to or lower than the set temperature and the storage chamber temperature is lower than the upper limit range, the control unit rotates each of the cooling fan and the heat-radiation fan at a low-speed lower than a medium-speed.
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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
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.
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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
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.
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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
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.
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公开(公告)号：US12247775B2
公开(公告)日：2025-03-11
申请号：US17600266
申请日：2020-04-01
Applicant: LG ELECTRONICS INC.
Inventor： Seokhyun Kim , Sangoh Kim , Junseong Jeong
Abstract: The present disclosure relates to a refrigerator. The refrigerator according to an embodiment of the present disclosure includes: a compressor configured to compress a refrigerant; an evaporator configured to perform heat exchange using the refrigerant compressed by the compressor; an RF output device configured to output an RF signal to the evaporator for removing frost on the evaporator; and a controller configured to control the RF output device, wherein the controller is configured to: based on the RF signal, control the frost to phase change into a liquid by heat radiated from a plurality of metal fins of the evaporator; and after the phase change, control temperature of the phase changed liquid to increase by a water molecule movement based on the RF signal. Accordingly, defrosting may be performed using the RF signal.
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