A control method of a refrigerator includes: determining whether a first temperature of a refrigerating compartment satisfies a first temperature condition; based the first temperature satisfying the first temperature condition, determining whether a second temperature of a freezing compartment satisfies a second temperature condition; based on the second temperature satisfying the second temperature condition, determining (i) whether a third temperature of an ice making compartment satisfies a third temperature condition and (ii) whether a driving time for ice making has passed; maintaining operation of a compressor while determining (i) whether the second temperature satisfies the second temperature condition, (ii) whether the third temperature satisfies the third temperature condition, and (iii) whether the driving time has passed; and stopping operation of the compressor based on at least one of (i) a determination that the third temperature satisfies the third temperature condition or (ii) a determination that the driving time has passed.

A method of controlling a refrigerator includes starting a first cooling cycle to cool a first storage compartment by operating a compressor and a first fan, determining whether a start condition of a second cooling cycle to cool a second storage compartment is satisfied, operating a second fan for the second storage compartment when the start condition of the second cooling cycle is satisfied, determining whether an output change condition of the second fan is satisfied while the second fan operates, and changing a speed of the second fan when the output change condition of the second fan is satisfied.

A refrigerator includes a main body that includes an inner case having a storage chamber; a refrigerating chamber discharge duct that divides the storage chamber into a heat exchange chamber and a refrigerating chamber and has refrigerating chamber discharge ports for discharging cold air to the refrigerating chamber. A refrigerating chamber thermoelectric module has a first heat absorbing unit and a first heat dissipating unit, the first heat absorbing unit disposed in the heat exchange chamber. A refrigerating chamber cooling fan circulates cold air in the refrigerating chamber to the heat exchange chamber and the refrigerating chamber; and a refrigerating chamber heat dissipating fan blows external air to the first heat dissipating unit A freezing compartment is disposed in the refrigerating chamber and has a freezing chamber; a freezing compartment thermoelectric module has a second heat absorbing unit and a second heat dissipating unit, the second heating dissipating unit cooling the freezing chamber. An air guide has a channel for guiding cold air from the heat exchange chamber to the second heat dissipating unit; and a freezing compartment damper controls the cold air flowing toward the second heat dissipating unit through the channel.

A refrigerator includes a refrigerator cabinet, a fresh food compartment disposed within the cabinet, a freezer compartment disposed within the cabinet, an ice compartment disposed within the cabinet, and an electronic control system associated with the refrigerator and adapted to monitor and control the fresh food compartment, the freezer compartment and the ice compartment. The control system provides for energy efficient control and operation through various means, including by monitoring state of an ice maker associated with the ice compartment and controlling temperature within compartments of the refrigerator based on the ice maker state. A damper controls air flow between the fresh food and freezer compartments. The control system can direct heat to the damper if the damper becomes frozen.

A cooler including a cabinet defining an interior volume for storing a perishable product. A cold plate is disposed within the cabinet, and the cold plate is configured to absorb heat within the cabinet. The cooler further includes a defrosting system that includes a sensor configured to detect a presence of frost on a surface of the cold plate, a heating element affixed to the surface of the cold plate that is configured to at least partially melt frost on the cold plate, and a control unit configured to selectively activate and deactivate the heating element when the presence of frost is determined by the sensor.

An apparatus for cryostorage and manipulation of a plurality of container units includes a cryochamber having a cryo-access port. The cryochamber is electrically cooled at cryogenic temperatures. A unit holder is located inside the cryochamber and is configured to hold a plurality of container units. A user access area is provided for selectively permitting access to a chosen container unit by an authenticated user who has been authenticated by the apparatus. A motive grasper is provided for selectively removing the chosen container unit from the cryochamber through the cryo-access port, and selectively placing the chosen container unit into the user access area.

A refrigerator includes a control module which controls a first compressor, a second compressor, a first fan, a second fan, and a third fan, in which the control module performs a high-temperature initial simultaneous operation when the outside air temperature is at the outside air set temperature or more, performs a high-temperature initial alternation operation when the freezing compartment temperature is at the freezing compartment set temperature or less and the refrigerating compartment temperature is at the refrigerating compartment set temperature or less during the high-temperature initial simultaneous operation. The control module drives the first compressor and the second compressor together during the high-temperature initial simultaneous operation, and alternately drives the first compressor and the second compressor during the high-temperature initial alternation operation.

A temperature sensor, a temperature measuring device comprising the temperature sensor, and a temperature measuring method using the temperature sensor are disclosed. The temperature sensor is disposed at a measurement target having an extremely low temperature and transmits temperature measurement data to a temperature measurement output unit through a lead wire. The temperature sensor includes a housing, an electric resistor disposed in the housing, and a thermal anchor portion disposed inside or outside the housing and connected to the lead wire. Further, the lead wire extending from the thermal anchor portion is connected to the temperature measurement output unit.

A refrigerator, including a sealed refrigeration system, is provided herein. The sealed refrigeration system may include a compressor, a phase separator, and a rotatable heat exchanger. The phase separator may be in fluid communication with the compressor and include a separator body defining an inner face and an outer face. The inner face may define a refrigerant cavity. The outer face may be directed away from the refrigerant cavity opposite the inner face. The rotatable heat exchanger may include a thermally conductive body and a plurality of spaced planar fins. The thermally conductive body may be positioned about the outer face along a rotation axis. The planar fins may extend from the thermally conductive body in a radial direction away from the phase separator. The plurality of spaced planar fins may define an axial intake channel extending parallel to the rotation axis through one or more planar fins.

A refrigerator includes a storage space, a freezing chamber defining an insulating space configured to maintain a chamber temperature independent from the storage space, an evaporator in the storage space, a grille panel assembly that defines an evaporator space configured to accommodate the evaporator and at least a portion of the storage space, a thermoelectric element assembly including a thermoelectric element, a heat sink, and a cold sink to cool the freezing chamber to a temperature less than the temperature of the storage space, a module accommodation portion located at a side of the grille panel assembly, a defrost water guide that communicates with the module accommodation portion and the evaporator space and that is configured to discharge defrost water generated during a defrost operation of the freezing chamber, and a defrost heater located in the module accommodation portion and configured to melt ice during the defrost operation.