Lg Electronics Inc.

Kyeongyun Kim

Kyungseok Kim

Myungjin Chung

Seunguk Ahn

Giseok Seong

Kyunghun Cha

Soyoon Kim

Yongjoo Park

Changho Seo

Minho Song

Sunam Chae

Yonghwan Eom

Seojung Kim

Jeongwon Park

Yonghun Suh

Juyeong Heo

Kiho Hong

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.

Refrigerating system using non-azeotropic mixed refrigerant

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.

Method for controlling refrigerating system using non-azeotropic mixed refrigerant

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.

Refrigerating apparatus using non-azeotropic mixed refrigerant

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.

Refrigerator having a cold air supply means and control method therefore

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.

Refrigerator

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.

A refrigerator includes a wine chamber, a wine chamber evaporator, a compressor, a wine chamber heater, a valve, a wine chamber temperature sensor, and a controller. The controller selectively performs a cooling mode and a heating mode.

A refrigerator includes a compressor, a condenser, a first evaporator connected with a first evaporator inlet path and a first evaporator outlet path, a second evaporator connected with a second evaporator inlet path and a second evaporator outlet path, a third evaporator connected with a third evaporator inlet path and a third evaporator outlet path, a path switching device, and a controller for controlling the compressor and the path switching device based on at least one mode.

A refrigerator includes a freezing compartment and a refrigerating compartment. The refrigerator also includes a first refrigeration cycle system and a second refrigeration cycle system, the first refrigeration cycle system configured to cool the freezing compartment of the refrigerator and the second refrigeration cycle system configured to cool the refrigerating compartment of the refrigerator. The refrigerator also includes an auxiliary evaporator configured to supply cool air into the refrigerating compartment based on a portion of refrigerant circulating within the first refrigeration cycle that cools the freezing compartment.

Refrigerator and method of controlling the same

A refrigeration cycle of a refrigerator includes a first refrigeration cycle in which a first refrigerant flows along a first refrigerant tube and a second refrigeration cycle in which a second refrigerant flows along a second refrigerant tube. First and second compressors compress each of the first and second refrigerants, and a combined condenser condenses each of the first and second refrigerants. First and second expansion valves phase-change each of the first and second refrigerants passing through the combined condenser, and first and second evaporators change the refrigerant passing through each of the first and second expansion valves into a low-temperature low-pressure gaseous refrigerant.

Refrigeration cycle comprising a common condensing section for two separate evaporator-compressor circuits

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

A refrigerator includes a first compressor configured to compress first refrigerant, a first condenser configured to condense the compressed first refrigerant, a first expansion valve configured to reduce a temperature and a pressure of the condensed first refrigerant, a first evaporator configured to evaporate the first refrigerant having passed through the first expansion valve, a second compressor configured to compress second refrigerant, a second condenser configured to condense the compressed second refrigerant, a second expansion valve configured to reduce a temperature and a pressure of the condensed second refrigerant, a second evaporator configured to evaporate the second refrigerant having passed through the second expansion valve, a first heat exchanger arranged after and connected to the first expansion valve, and a second heat exchanger arranged after and connected to the second expansion valve. The first heat exchanger and the second heat exchanger are configured to exchange heat with each other.

Growing community of inventors

Seoul, South Korea

Kyeongyun Kim