Patent application number | Description | Published |
20120023978 | REFRIGERATOR AND DRIVING METHOD THEREOF - A refrigerator and a driving method thereof are disclosed. A primary compressor and a secondary compressor can form independent cycles together with corresponding evaporators so as to reduce unnecessary power consumption. Also, a backflow prevention valve is installed between the primary and secondary compressors to prevent an increase in pressure of the secondary compressor, or an auxiliary heat exchanger is installed at the outlet side of a second evaporator with high temperature to allow heat exchange of an outlet side pipe of a first evaporator with low temperature so as to shift a load of a freezing chamber into a relatively large refrigerating chamber, thereby improving efficiency of the refrigerator. In addition, an oil separator or an oil collection pipe is installed at the outlet sides of the compressors or an oil balancing pipe and an oil balancing valve are installed between the compressors, so as to uniformly maintain an oil amount between the compressors. | 02-02-2012 |
20120023980 | REFRIGERATOR AND CONTROLLING METHOD OF THE SAME - Disclosed are a refrigerator and a controlling method of the same. A change amount of a refrigerating chamber temperature, or a change amount of a freezing chamber temperature may be calculated per time period, and a load corresponding driving may be executed based on the calculated change amount. This may allow the load corresponding driving to be executed more precisely, reduce power consumption, and enhance stability and efficiency of a system. | 02-02-2012 |
20120023981 | REFRIGERATOR AND DRIVING METHOD THEREOF - A refrigerator and a driving method thereof are disclosed. The number of vibration of each compressor, evaporation temperature of each evaporator, or an open time of a refrigerant switching valve is detected to determine whether the flow of refrigerant is biased so as to adjust a cooling capability of the compressor or an open value or open time of a refrigerant switching valve, thereby uniformly distributing the refrigerant into first and second evaporators. Accordingly, the refrigerator can be driven with an independent refrigeration cycle corresponding to a load of a freezing chamber or a refrigerating chamber, resulting in reduction of unnecessary power consumption of the refrigerator. | 02-02-2012 |
20120023986 | REFRIGERATOR - A refrigerator includes a heat transfer unit, which transfers heat generated from a machine room within a refrigerator main body to a periphery of a home bar so as to remove dew formed at the periphery of the home bar, and an insulating unit for surrounding an outer circumference of the heat transfer unit. The refrigerator further includes a heating unit installed to be thermally conductive with the heat transfer unit, and a non-conductive cover for covering the heat transfer unit and the heating unit. Consequently, waste heat generated from the machine room, other than a separate power supply unit, can be used to prevent dew formation at the periphery of the home bar, so as to remarkably reduce power consumption. | 02-02-2012 |
20120067075 | REFRIGERATOR - A refrigerator includes a refrigerator main body having a storage space to store foods and a machine room to accommodate a part of a refrigerant compression cycle apparatus, a condenser disposed between a bottom surface of the refrigerator main body and a lower surface of the storage space, at least one compressor disposed within the machine room, and a blow fan to form an air passage through which external air passed through the condenser is supplied into the compressor and discharged out of the machine room. | 03-22-2012 |
20150027678 | HEAT EXCHANGER AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME - A heat exchanger and a method and apparatus for manufacturing the same are provided. The heat exchanger may include a refrigerant tube, through which a refrigerant may flow, at least one heat-exchange fin, into which the refrigerant tube may be inserted, a plurality of tube treatments provided on a surface of the refrigerant tube, and a plurality of fin treatments provided on a surface of the at least one heat-exchange fin. | 01-29-2015 |
20150059370 | REFRIGERATOR AND METHOD OF CONTROLLING A REFRIGERATOR - A refrigerator and a method of controlling a refrigerator are provided. The refrigerator may include a machine room defined in or at one side of a storage compartment, a base that defines a bottom surface of the machine room, a compressor seated on the base to compress a refrigerant, a condenser that condenses a refrigerant compressed in the compressor, the condenser being disposed on or at one side of the compressor, a drain pan disposed on the base to store condensed water generated in the condenser, and a fan assembly coupled to the base to generate an air flow within the machine room. The fan assembly may include a plurality of condensation fans. | 03-05-2015 |
20160047593 | REFRIGERATOR COMPRISING VACUUM SPACE - The refrigerator includes a body having a storage space for storing a predetermined storage object, wherein the body includes an inner case having the storage space, an outer case having an inside surface spaced a predetermined gap from an inside surface of the inner case to house the inner case, a vacuum space provided between the inner case and the outer case enclosed to maintain a vacuum state for heat insulating between the inner case and the outer case, and a sealing unit for sealing a front of the vacuum space formed between a front of the inner case and a front of the outer case and reducing a heat transfer rate between the inner case and the outer case. | 02-18-2016 |