A cryogenic freezer features a dewar defining a storage space. A reservoir is positioned within or adjacent to the storage space and is configured to contain a cryogenic liquid with a headspace above the cryogenic liquid in a reservoir interior space that is sealed with respect to the storage space. A refrigeration module is in heat exchange relationship with the reservoir. A sensor is configured to determine a temperature or pressure within the reservoir. A system controller is connected to the sensor and the refrigeration module and configured so that the refrigeration module is adjusted to provide additional cooling to the reservoir when a pressure or temperature within the headspace increases.

The refrigerator and freezer conversion system addresses the problem described above. The refrigerator and freezer conversion system is configured for use with a refrigerator. The refrigerator and freezer conversion system incorporates an insulating cabinet and a refrigeration system. The refrigeration system maintains the temperature within the insulating cabinet. The insulating cabinet is organized into a plurality of chambers. The refrigeration system independently maintains the temperature within each of the plurality of chambers. By independently maintained is meant that the temperature maintained in any initial chamber selected from the plurality of chambers is not affected by the temperature of any subsequent chamber selected from the plurality of chambers.

A multiple drawer refrigerator, where each drawer is separately controllable to a temperature for a refrigerator or a freezer. Each drawer is isolated from all the other drawers, so that items in one drawer do not leech smells to another drawer, and so that opening one drawer does not release cold air from the other drawers.

A thermally insulated package for transporting a temperature sensitive payload. The thermally insulated package comprises a payload retention volume for said temperature sensitive payload; at least one layer of insulation surrounding the payload retention volume; an outer casing enclosing the at least one layer of insulation and the payload retention volume; and a recess for accommodating at least one functional device, the recess arranged between the at least one layer of insulation and the outer casing. The recess suitably provides a specific storage volume within the thermally insulated package but outside of the insulation and the payload retention volume for said the functional device, such as a temperature monitoring device, in order to conveniently transport said device with the package and protect said device from physical impacts and environmental factors. A thermally insulated package kit is also disclosed.

The present disclosure relates to a refrigerator and a control method thereof in one embodiment. The refrigerator in one embodiment may include a storage part including a compressor and an evaporator and configured to store a food item at a low temperature using air cooled by the evaporator, an ice making compartment configured to make or store ice using air cooled by the evaporator, and a fan for making ice allowing air cooled by the evaporator to flow to the ice making compartment, wherein a rotation speed of the fan for making ice changes while the fan for making ice continues to operate during operation of the compressor.

Exemplary embodiments provide a refrigeration system having an interior space cooled by a plurality of cooling. Each cooling unit is capable of operating either synchronously when in communication with a control panel or under independent operation. Each cooling unit is modularly and replaceable without the use of tools by means of a quick connect system. The cooling units use a heat exchanger cooled by chilled water and make use of an electronic super heat control and electronic expansion valve to regulate the flow of refrigerant for improved efficiency.

A food holding apparatus and associated components and methods. The food holding apparatus includes at least one food receiver and a refrigeration system. First and second cooling conduits are arranged with respect to the receiver and configured to receive refrigerant to refrigerate a tray of food disposed in a cavity of the receiver. A metering valve is fluidly coupled to the second cooling conduit to selectively block and permit flow of refrigerant to the second cooling coil.

The method for controlling the refrigerator includes operating a first cooling cycle for cooling the first storage compartment to operate the compressor and operating a first fan for the first storage compartment, and switching the first cooling cycle to a second cooling cycle for cooling the second storage compartment to operate the compressor and operating a second fan when a stop condition of the first cooling cycle is satisfied. A temperature of each storage compartment is sensed at sampling time intervals in each cooling cycle. Further, a cooling power of the compressor is determined for each sampling time based on a sensed current temperature of the storage compartment, and the compressor is operated at the determined cooling power.

The method for controlling the refrigerator includes operating a first cooling cycle for cooling the first storage compartment to operate the compressor and operating a first fan for the first storage compartment, and switching the first cooling cycle to a second cooling cycle for cooling the second storage compartment to operate the compressor and operating a second fan when a stop condition of the first cooling cycle is satisfied. A temperature of each storage compartment is sensed at sampling time intervals in each cooling cycle. Further, a cooling power of the compressor is determined for each sampling time based on a sensed current temperature of the storage compartment, and the compressor is operated at the determined cooling power.

A refrigerator has a temperature-controlled drawer within a fresh food compartment that includes: a temperature sensor within the temperature-controlled drawer and/or the fresh food compartment; a display coupled to the drawer, wherein the display receives an output from the temperature sensor, determines what food type would be best suited for the temperature based on said temperature sensor output, and indicates what type of food it has determined is best for storage therein; at least one light within said drawer, wherein the at least one light changes to a first color, based on the food type indicated by the display, and turns off and on depending on whether the fresh food compartment door is closed or open, respectively.