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公开(公告)号：US20200018526A1
公开(公告)日：2020-01-16
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：US20180266735A1
公开(公告)日：2018-09-20
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
CPC classification number: F25B21/04 , F25B21/02 , F25B47/02 , F25B2321/0211 , F25B2321/0212 , F25B2321/0251 , F25B2700/2104 , F25B2700/2106 , F25B2700/2107 , F25D17/062 , F25D21/06 , F25D2700/12 , F25D2700/14
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：US20240353163A1
公开(公告)日：2024-10-24
申请号：US18762962
申请日：2024-07-03
Applicant: LG Electronics Inc.
Inventor： Minkyu OH , Heayoun SUL , Hyoungkeun LIM , Jeehoon CHOI
CPC classification number: F25D17/062 , F25B21/02 , F25D23/006 , F25B2321/023 , F25B2321/0251 , F25D2317/066 , F25D2317/0671
Abstract: A refrigerator includes: an inner case having a storage chamber; a thermoelectric module including a thermoelectric element and a cooling sink; a fan configured to circulate air, to the storage chamber; a fan cover configured to cover the fan and having an upper discharge hole, a lower discharge hole, and an inner suction hole formed between the upper discharge hole and the lower discharge hole; a first receiving member disposed in the storage chamber; and a second receiving member disposed over the first receiving member to be spaced apart from the first receiving member. At least a portion of each of the inner suction hole and the lower discharge hole faces a portion between the first receiving member and the second receiving member, and at least a portion of the upper discharge hole faces a portion between a top surface of the storage chamber and the second receiving member.
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公开(公告)号：US20180266736A1
公开(公告)日：2018-09-20
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
CPC classification number: F25B21/04 , F25B21/02 , F25B47/02 , F25B2321/0211 , F25B2321/0212 , F25B2321/0251 , F25B2500/19 , F25B2600/11 , F25B2700/02 , F25B2700/2104 , F25D17/062 , F25D21/06 , F25D21/08 , F25D2700/12
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：US20180112895A1
公开(公告)日：2018-04-26
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
CPC classification number: F25B21/02 , F25B2321/023 , F25B2321/0251 , F28D15/0275 , H01L35/28
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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Patent Agency Ranking
公开(公告)号：US20230194142A1
公开(公告)日：2023-06-22
申请号：US18113232
申请日：2023-02-23
Applicant: LG Electronics Inc.
Inventor： Minkyu OH , Heayoun SUL , Hyoungkeun LIM , Jeehoon CHOI
CPC classification number: F25D17/062 , F25B21/02 , F25D23/006 , F25B2321/023 , F25B2321/0251 , F25D2317/066 , F25D2317/0671
Abstract: A refrigerator include: an inner case having a storage chamber; a thermoelectric module including a thermoelectric element and a cooling sink; a fan configured to circulate air, to the storage chamber; a fan cover configured to cover the fan and having an upper discharge hole, a lower discharge hole, and an inner suction hole formed between the upper discharge hole and the lower discharge hole; a first receiving member disposed in the storage chamber; and a second receiving member disposed over the first receiving member to be spaced apart from the first receiving member. At least a portion of each of the inner suction hole and the lower discharge hole faces a portion between the first receiving member and the second receiving member, and at least a portion of the upper discharge hole faces a portion between a top surface of the storage chamber and the second receiving member.
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公开(公告)号：US20220333842A1
公开(公告)日：2022-10-20
申请号：US17859309
申请日：2022-07-07
Applicant: LG ELECTRONICS INC.
Inventor： Minkyu OH , Heayoun SUL , Hyoungkeun LIM , Jeehoon CHOI
Abstract: A refrigerator include: an inner case having a storage chamber; a thermoelectric module including a thermoelectric element and a cooling sink; a fan configured to circulate air, to the storage chamber; a fan cover configured to cover the fan and having an upper discharge hole, a lower discharge hole, and an inner suction hole formed between the upper discharge hole and the lower discharge hole; a first receiving member disposed in the storage chamber; and a second receiving member disposed over the first receiving member to be spaced apart from the first receiving member. At least a portion of each of the inner suction hole and the lower discharge hole faces a portion between the first receiving member and the second receiving member, and at least a portion of the upper discharge hole faces a portion between a top surface of the storage chamber and the second receiving member.
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公开(公告)号：US20200056827A1
公开(公告)日：2020-02-20
申请号：US16496296
申请日：2018-03-06
Applicant: LG Electronics Inc.
Inventor： Minkyu OH , Heayoun SUL , Hyoungkeun LIM , Jeehoon CHOI
Abstract: A refrigerator according to an embodiment of the present invention may include: an inner case having a storage chamber; a thermoelectric module configured to cool the storage chamber and including a thermoelectric element and a cooling sink; a fan configured to circulate air, which has exchanged heat with the cooling sink, to the storage chamber; a fan cover configured to cover the fan and having an upper discharge hole, a lower discharge hole, and an inner suction hole formed between the upper discharge hole and the lower discharge hole; a first receiving member disposed in the storage chamber; and a second receiving member disposed over the first receiving member to be spaced apart from the first receiving member. At least a portion of each of the inner suction hole and the lower discharge hole may face a portion between the first receiving member and the second receiving member, and at least a portion of the upper discharge hole may face a portion between a top surface of the storage chamber and the second receiving member.
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公开(公告)号：US20200003462A1
公开(公告)日：2020-01-02
申请号：US16570473
申请日：2019-09-13
Applicant: LG ELECTRONICS INC.
Inventor： Heayoun SUL , Minkyu OH , Jeehoon CHOI , Hyoungkeun LIM
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.
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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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