公开(公告)号：US20220357079A1

公开(公告)日：2022-11-10

申请号：US17634185

申请日：2020-08-20

Applicant: LG ELECTRONICS INC.

Inventor： Minho SONG ,  Changho SEO ,  Kyeongyun KIM ,  Yongjoo PARK

IPC: F25B6/02 ,  F25B41/20

Abstract: A refrigerating apparatus may include a main body having an interior space in which an article is accommodated, a door configured to open and close an opening of the main body, a compressor configured to compress a non-azeotropic mixed refrigerant, a condenser configured to condense the compressed non-azeotropic mixed refrigerant, a hotline provided at a contact portion between the main body and the door through which the condensed non-azeotropic mixed refrigerant flows, an expander configured to expand the non-azeotropic mixed refrigerant, heat of which is radiated by the hotline, and an evaporator configured to evaporate the expanded non-azeotropic mixed refrigerant to supply cold air to the interior space. According to such structure, even when the non-azeotropic mixed refrigerant is used, a function of the hotline to prevent dew formation may be normally performed with hot refrigerant.

公开(公告)号：US20190186803A1

公开(公告)日：2019-06-20

申请号：US16222443

申请日：2018-12-17

Applicant: LG ELECTRONICS INC.

Inventor： Giseok SEONG ,  Kyungseok KIM ,  Kyeongyun KIM ,  Seunguk AHN ,  Myungjin CHUNG

IPC: F25D11/02 ,  F25B13/00 ,  F25B49/02 ,  F25D21/08

CPC classification number: F25D11/022 ,  F25B13/00 ,  F25B49/02 ,  F25B2600/2511 ,  F25D17/065 ,  F25D21/006 ,  F25D21/08 ,  F25D2331/803

Abstract: A refrigerator including a compressor, a condenser, a freezing chamber evaporator, a freezing chamber fan, a defrosting heater, a wine chamber evaporator, a wine chamber fan, a path switching device configured to guide the refrigerant condensed in the condenser to the freezing chamber evaporator in a freezing chamber mode and to guide the refrigerant condensed in the condenser to the wine chamber evaporator in a wine chamber mode, and a controller configured to turn on the defrosting heater to perform a freezing chamber defrosting mode for defrosting the freezing chamber evaporator, to control the path switching device to the wine chamber mode while the temperature of the wine chamber is dissatisfied when the temperature of the wine chamber is dissatisfied in the freezing chamber defrosting mode, and to drive the wine chamber fan.

公开(公告)号：US20220373232A1

公开(公告)日：2022-11-24

申请号：US17634917

申请日：2020-08-20

Applicant: LG ELECTRONICS INC.

Inventor： Yongjoo PARK ,  Changho SEO ,  Kyeongyun KIM ,  Minho SONG

IPC: F25B9/00 ,  F25B41/37 ,  F25B41/20

Abstract: A refrigerating system may include a compressor configured to compress a non-azeotropic mixed refrigerant, a condenser configured to condense the compressed non-azeotropic mixed refrigerant, a three-way valve configured to branch the non-azeotropic mixed refrigerant condensed by the condenser, a first evaporator configured to supply cold air to a first interior space, a second evaporator configured to supply cold air to a second interior space at a temperature higher than at a temperature of the first interior space, and a capillary tube configured to expand the non-azeotropic mixed refrigerant branched by the three-way valve and supply the expanded non-azeotropic mixed refrigerant to at least one of the first evaporator or the second evaporator. With such features, a high-efficiency refrigerating system to which the non-azeotropic mixed refrigerant is applied may be implemented.

公开(公告)号：US20180045433A1

公开(公告)日：2018-02-15

申请号：US15545559

申请日：2016-01-21

Applicant: LG Electronics Inc.

Inventor： Kyeongyun KIM ,  Kyungseok KIM ,  Kyunghun CHA

IPC: F25B5/04 ,  F25B7/00 ,  F25B49/02

CPC classification number: F25B5/04 ,  F25B7/00 ,  F25B25/005 ,  F25B49/02 ,  F25B49/022 ,  F25B2600/112 ,  Y02B30/743

Abstract: Disclosed is a refrigerator. The refrigerator includes a first compressor (100) configured to compress refrigerant, a first condenser (110) configured to condense the refrigerant compressed in the first compressor (100), a first expansion valve (120) configured to reduce a temperature and pressure of the refrigerant condensed in the first condenser (110), a first evaporator (140) configured to evaporate the refrigerant having passed through the first expansion valve (120), a second compressor (200) configured to compress refrigerant, a second condenser (210) configured to condense the refrigerant compressed in the second compressor (200), a second expansion valve (220) configured to reduce a temperature and pressure of the refrigerant condensed in the second condenser (210) and a second evaporator (230) configured to evaporate the refrigerant having passed through the second expansion valve (220). The refrigerator further includes a heat exchanger (130) located at a rear of the first expansion valve (120), and the heat exchanger (130) and the second condenser (210) undergo heat exchange therebetween.

公开(公告)号：US20180031301A1

公开(公告)日：2018-02-01

申请号：US15549932

申请日：2016-02-04

Applicant: LG Electronics Inc.

Inventor： Kyeongyun KIM ,  Kyungseok KIM ,  Kiho HONG

IPC: F25D19/04 ,  F28F1/32 ,  F25D11/02 ,  F25B39/00 ,  F25D23/00

CPC classification number: F25D19/04 ,  F25B39/00 ,  F25B39/04 ,  F25B2400/061 ,  F25D11/022 ,  F25D23/006 ,  F28F1/325

Abstract: A refrigerator is disclosed. The refrigerator includes a first compressor (110) for compressing refrigerant, a first condenser for condensing refrigerant compressed by the first compressor, a first expansion valve for lowering temperature and pressure of refrigerant condensed by the first condenser, a first evaporator for evaporating refrigerant passed through the first expansion valve, a second compressor (210) for compressing refrigerant, a second condenser for condensing refrigerant compressed by the second compressor, a second expansion valve for lowering temperature and pressure of refrigerant condensed by the second condenser, and a second evaporator for evaporating refrigerant passed through the second expansion valve. The first condenser and second condenser include refrigerant tubes arranged to hold cooling fins in common, thereby forming a common-fin-held condenser (300).

公开(公告)号：US20230114081A1

公开(公告)日：2023-04-13

申请号：US18078608

申请日：2022-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Myungjin CHUNG ,  Kyeongyun KIM ,  Kyungseok KIM ,  Soyoon KIM ,  Seunguk AHN ,  Kyunghun CHA

IPC: F25B49/02 ,  F25D17/06 ,  F25D29/00 ,  F25D19/00 ,  F25D17/04

Abstract: A control method for a refrigerator includes sensing a temperature of a storage room; operating a cool air supply at a cooling power when the sensed temperature of the storage room is equal to or above a first reference temperature; operating the cool air supply at a delay power, which is less than the cooling power, when the sensed temperature of the storage room is equal to or below a second reference temperature, which is less than the first reference temperature while the cool air supply is operating at the cooling power; and adjusting the cooling power or the delay power of the cool air supply according to the temperature of the storage room while the cool air supply is operating at the delay power, and operating the cool air supply at the determined adjusted cooling power or delay power.

公开(公告)号：US20220325158A1

公开(公告)日：2022-10-13

申请号：US17633777

申请日：2020-08-20

Applicant: LG ELECTRONICS INC.

Inventor： Changho SEO ,  Kyeongyun KIM ,  Yongjoo PARK ,  Minho SONG

IPC: C09K5/04 ,  F25B9/00 ,  F25B39/00

Abstract: A non-azeotropic mixed refrigerant and a refrigerating apparatus using a non-azeotropic mixed refrigerant are provided. The non-azeotropic mixed refrigerant may include isobutane and propane. The non-azeotropic mixed refrigerant may be provided in a weight ratio of 50%≤isobutane≤90%. Therefore, high efficiency may be obtained in a refrigerating system using the non-azeotropic mixed refrigerant.

公开(公告)号：US20220290900A1

公开(公告)日：2022-09-15

申请号：US17634492

申请日：2020-08-20

Applicant: LG ELECTRONICS INC.

Inventor： Yongjoo PARK ,  Changho SEO ,  Kyeongyun KIM ,  Minho SONG

IPC: F25B5/02 ,  F25B49/02 ,  C09K5/04

Abstract: A method for controlling a refrigerating system using a non-azeotropic mixed refrigerant is provided. The refrigerating system may include a first evaporator configured to supply cold air to a freezer compartment located upstream and a second evaporator configured to supply cold air to a refrigerating compartment located downstream, based on a flow direction of the non-azeotropic mixed refrigerant. The method may include a first operation comprising operating a compressor, a freezer compartment fan to blow air to the first evaporator, and a refrigerating compartment fan to blow air to the second evaporator; a second operation comprising when the freezer compartment reaches a target temperature or the refrigerating compartment reaches a target temperature, continuously operating the compressor, and stopping the freezer compartment fan or the refrigerating compartment fan corresponding to one of the freezer compartment or the refrigerating compartment that reaches the target temperature; and a third operation comprising when both the freezer compartment and the refrigerating compartment reach the target temperatures, turning off both of the refrigerating compartment fan and the freezer compartment fan and stopping the compressor.

公开(公告)号：US20220026134A1

公开(公告)日：2022-01-27

申请号：US17493154

申请日：2021-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Giseok SEONG ,  Kyungseok KIM ,  Kyeongyun KIM ,  Seunguk AHN ,  Myungjin CHUNG

IPC: F25D11/02 ,  F25D21/08 ,  F25B49/02 ,  F25B13/00 ,  F25D17/06 ,  F25D21/00

Abstract: A refrigerator including a compressor, a condenser, a freezing chamber evaporator, a freezing chamber fan, a defrosting heater, a wine chamber evaporator, a wine chamber fan, a path switching device configured to guide the refrigerant condensed in the condenser to the freezing chamber evaporator in a freezing chamber mode and to guide the refrigerant condensed in the condenser to the wine chamber evaporator in a wine chamber mode, and a controller configured to turn on the defrosting heater to perform a freezing chamber defrosting mode for defrosting the freezing chamber evaporator, to control the path switching device to the wine chamber mode while the temperature of the wine chamber is dissatisfied when the temperature of the wine chamber is dissatisfied in the freezing chamber defrosting mode, and to drive the wine chamber fan.

公开(公告)号：US20210055042A1

公开(公告)日：2021-02-25

申请号：US16961202

申请日：2019-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Myungjin CHUNG ,  Kyungseok KIM ,  Kyeongyun KIM ,  Giseok SEONG ,  Seunguk AHN ,  Jeongwon PARK ,  Yonghun SUH

IPC: F25D29/00 ,  F25D31/00 ,  F25D11/02

Abstract: A refrigerator includes a cabinet in which a storage chamber is formed, a cooler configured to cool the storage chamber, a heater configured to heat the storage chamber, a temperature sensor configured to sense a storage chamber temperature, and a controller configured to control the cooler and the heater, in which the controller selectively performs a plurality of modes, the plurality of modes include a cooling mode in which the cooler is operated or stopped, a heating mode in which the heater is operated or stopped, and a standby mode in which the cooler and the heater are stopped, and the plurality of modes are performed in the order of the cooling mode, the standby mode, and heating mode, or are performed in the order of the heating mode, the standby mode, and the cooling mode.