A dehumidifier for operation within the 5° C. to 20° C. temperature range and 50 to 100 percent relative humidity range of air includes an evaporator, a condenser, a fan that draws humid air through the evaporator and condenser, and a compressor for pumping refrigerant fluid through both the evaporator and condenser. The evaporation temperature is maintained in the evaporator at least at −4° C., resulting in a temperature within the evaporator and at the outlet thereof being greater than 0° C., thereby preventing the formation of ice in the evaporator and allowing the operation of the evaporator to its full power all the time.

The present invention relates to a refrigerator controlling freshness on the basis of context awareness and artificial intelligence, a server, a portable device, and a method for controlling freshness. The refrigerator controlling freshness on the basis of context awareness, according to one embodiment of the present invention, comprises: one or more partitioned storage spaces; one or more freshness sensors for sensing the freshness in an outside area or the storage spaces; a communication unit for receiving operation instruction information from the server or the portable device, and transmitting, to the server or the portable device, freshness condition information generated by the freshness sensors; and a control unit for controlling the freshness sensors and the communication unit, and performing a freshness control operation according to operation instruction information instructing an operation that differs from pre-set operating condition information that is set for any one or more of the storage spaces.

A food cooling method includes: a dehumidifying step of performing mainly a dehumidifying process on food by cooling the food with cool air of a first blow-out temperature at which no frost is generated on fins of the heat exchanger; and a cooling step of performing mainly a cooling process on the food by cooling the food having undergone the dehumidifying step with cool air of a second blow-out temperature which is lower than the first blow-out temperature and at which frost may be generated on the fins.

Disclosed herein is a refrigerator having a storage box by which the humidity in a storage compartment is controllable. The refrigerator includes a body having a storage compartment, a storage box installed to be drawable in the storage compartment, a cover located above the storage box and provided to be rotatable, a cover frame configured to support the cover, and a knob configured to rotate the cover to adjust humidity inside the storage box.

An object of the present invention is to provide a low-temperature storage system that ensures minimal penetration of moisture into the low-temperature storage chamber from an external environment without involving an increase in size or complexity of the system configuration. The object is achieved by the configuration in this low-temperature storage system wherein a loading/unloading mechanism that carries storage objects into and out of the low-temperature storage chamber has an ancillary entry/exit preparation chamber. The entry/exit preparation chamber has a first anteroom with an interior space controlled to maintain a lower dew point than that of the external environment, and a second anteroom disposed between the first anteroom and the low-temperature storage chamber and having an interior space controlled to maintain a dew point that is between the dew point in the first anteroom and the dew point in the low-temperature storage chamber.

A method of reducing moisture content of a cooling compartment includes increasing a temperature of the cooling compartment to a minimum temperature level, decreasing the temperature of the cooling compartment to a maximum temperature level, and draining any condensed moisture from the cooling compartment. A system for reducing moisture content of a cooling compartment includes a coil assembly configured to increase a temperature of the cooling compartment to a minimum temperature level and decrease the temperature of the cooling compartment to a maximum temperature level, and a drain for draining any condensed moisture from the cooling compartment.

Device (10, 110) for renewing air in an enclosure, including a discharge means (14) for the air inside the enclosure containing harmful vapors and/or polluted air and/or humidity, a fan (22) being located within the discharge means and being suitable to convey this inside air through the discharge means, and a means (26) for opening the door of the enclosure that makes it possible to lock and unlock the door, the unlocking of the door being subsequent to a manual or automatic opening command from an opening control means, the door remaining locked when the opening means is activated, its deactivation being performed after unlocking conditions are met. The device additionally includes at least a means (17, 27) for purifying the air before it is evacuated through the exhaust duct.

An air duct assembly is provided that is configured to supply air to a compartment and including: an outer cover housing, configured to be fixed to an outer side of a compartment wall defining the compartment, an external accommodating cavity being defined inside the outer cover housing; an inner cover housing, configured to be disposed opposite to the outer cover housing on an inner side of the compartment wall, an internal accommodating cavity being defined inside the inner cover housing. An air inlet is formed in the outer cover housing, so as to allow external air to enter the external accommodating cavity via the air inlet. A vent is formed in the compartment wall, so that the external accommodating cavity communicates with the internal accommodating cavity. An air outlet is formed in the inner cover housing, so as to supply the air in the internal accommodating cavity to the inside of the compartment.

A drying chamber assembly and a refrigerator are provided. The drying chamber assembly consists of a drawer-type sealing container which includes a drawer body, a drawer door and a drawer upper cover. The drawer body has an upward top opening. The drawer door is disposed at a front end of the drawer body and configured to push and pull the drawer body. The drawer upper cover is disposed above the drawer body to seal the top opening when the drawer body is completely pushed into the storage compartment and defines a drying space together with the drawer body and the drawer door. An airflow inlet is formed in the drawer body and configured to supply an airflow to the drying space. The drying chamber assembly directly covers and seals the top opening of the drawer body through the drawer upper cover.

A refrigerating device includes a cabinet, a condenser and a dehumidifying device. The cabinet defines a compartment therein and includes a rear panel, and an inner wall of the compartment defines an air permeable hole. The condenser is disposed to the rear panel. The dehumidifying device includes a casing and a dehumidifying assembly disposed in the casing, the casing is disposed to the rear panel and located outside the cabinet, the casing defines a first air through hole and a second air through hole in communication with the casing respectively, the first air through hole is communicated with the air permeable hole through an air communication assembly, and the second air through hole is communicated with an external environment.