Provided is a refrigerator. The refrigerator includes a cabinet including an inner case defining a storage compartment, an outer case surrounding the outside of the inner case, and an insulation material provided between the inner case and the outer case, a storage compartment door opening and closing the storage compartment, a cold air duct provided in the storage compartment and disposed in an upper side of the storage compartment to discharge cold air to the storage compartment, and a guide duct disposed outside the inner case to communicate with the cold air duct and extending to the storage compartment door to guide the cold air received from the cold air duct to the storage compartment door.

Systems and methods to distribute airflow in an internal space of a transport unit are described. The airflow distribution system may include an airflow distributor forming an airflow passage with a roof of the transport unit. The airflow distribution system may be also configured to allow airflow to discharge from a gap between the airflow distributor and the roof. The gap may be provided by at least one spacer between the airflow distributor and the roof. A back end of the airflow distribution system may be configured to provide a back pressure to the airflow passage while allowing the airflow to discharge. In operation, a front end of the airflow distribution system may be configured to receive airflow. The airflow can be distributed along the airflow passage and be discharged from the gap and the back end.

A refrigerator includes a liner and a wall covering assembly to create a false wall within a refrigerator cabinet. The wall covering assembly includes a top wall spaced-apart from a top wall of the liner, and a rear wall spaced-apart from a rear wall of the liner. The rear wall of the wall covering assembly includes a ventilated portion for providing outwardly directed air to the refrigerator cabinet. A duct assembly is disposed between the wall covering assembly and the liner and is configured to deliver air through the ventilated portion of the wall covering assembly and also deliver air in the form of a downwardly directed air curtain at the front portion of the refrigerator cabinet. The air curtain disrupts the outward flow of air from the ventilated portion of the wall covering assembly at the front portion of the refrigerator cabinet.

The invention is a refrigerator with a detachable heat exchange unit, and includes a refrigerator body 11 having upper openings 23 on the top or lower openings 30; a heat exchange unit 13 provided on the upper surface or the lower surface of the refrigerator body 11; a base plate 18 on which the heat exchange unit 13 is mounted, is detachably attached on the refrigerator body 11; and an evaporator box 21 mounted on the base plate 18, enclosing the evaporator 7 and having box openings 24 on the floor corresponding to the upper openings 23 or the lower openings 30 of the refrigerator body 11.

A method for freeze protection for a temperature control system, and a temperature control system for controlling the temperature of a temperature-controlled space at a set point temperature. The method includes monitoring a discharge air temperature, monitoring a return air temperature, setting a target temperature to equal the set point temperature, controlling the return air temperature at the target temperature, and adjusting the target temperature based on the return air temperature when the discharge air temperature drops to one of at or below freezing.

A refrigerated storage unit 1 includes: a refrigeration chamber S2, a refrigeration part 3 for cooling air inside the refrigeration chamber S2, a fan 4 for sending cold air cooled by the refrigeration part 3 into the refrigeration chamber S2, a temperature sensor 5 for detecting a temperature inside the refrigeration chamber S2, an infrared sensor 8 for detecting a temperature of a content provided inside the refrigeration chamber S2, and a control part 7 for controlling driving of the fan based on a result detected by at least one of the temperature sensor 5 and the infrared sensor 8.

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 an evaporator, a first fan, a first duct, a first return duct, a second fan, a second duct, and a second return duct. A first temperature sensor measures a first temperature in a first enclosed space. A second temperature sensor measures a second temperature in a second enclosed space. The first duct is mounted between the evaporator and the first enclosed space to receive air from the first duct and move it into the first enclosed space. The first return duct is mounted between the first enclosed space and the evaporator. The second duct is mounted between the evaporator and the second enclosed space to receive air from the second duct and move it into the second enclosed space. The second return duct is mounted between the second enclosed space and the evaporator. A refrigerator controller controls the evaporator and independent operation of both fans.

A refrigerator includes a main body that has a storage chamber and a drying chamber; a thermoelectric module that includes a heat absorber and a heat dissipater; a cooling fan that circulates air in the storage chamber to the heat absorber and the storage chamber; a heat-dissipating fan that blows air to the heat dissipater; an air guide that has a passage for guiding air heated by the heat dissipater to the drying chamber; a heater that is disposed in the passage; and a damper that controls a flow of air in the passage between the heat-dissipating fan and the heater. Heat of the heat dissipater transfers to the drying chamber through the passage of the air guide and the damper, thereby being able to dry an object to be dried.

The present disclosure relates to a refrigerator with an improved structure capable of improving cooling efficiency. A refrigerator according to an embodiment of the present disclosure includes a main body; a storage room formed in the main body, wherein a front part of the storage room is opened; a door configured to open or close the opened front part of the storage room; an evaporator installed in a back part of the storage room; an evaporator cover configured to partition the storage room into a storage area and a cool air generating area in which the evaporator is disposed; a first flow path formed between the evaporator and a back surface of the storage room; and a second flow path formed between the evaporator and the evaporator cover.