Provided is a sensor package in a refrigerator configured to provide information related to refrigerated food. The sensor package may include a body having a mark classified by a type of food allocated to the sensor package and indicating the type of food of a food to which the sensor package is coupled, a battery, an operation switch, a memory configured to store food information corresponding to the type of food corresponding to the mark, a sensor communication module that communicates with a display provided in the refrigerator, a sensing module that senses state information associated with the food, and a sensor control module that controls the sensor communication module to initiate communication between the sensor package and the display of the refrigerator based on the state information sensed by the sensing module.

Provided is a sensor package in a refrigerator configured to provide information related to refrigerated food. The sensor package may include a body having a mark classified by a type of food allocated to the sensor package and indicating the type of food of a food to which the sensor package is coupled, a battery, an operation switch, a memory configured to store food information corresponding to the type of food corresponding to the mark, a sensor communication module that communicates with a display provided in the refrigerator, a sensing module that senses state information associated with the food, and a sensor control module that controls the sensor communication module to initiate communication between the sensor package and the display of the refrigerator based on the state information sensed by the sensing module.

A refrigerator comprising a storeroom and a cold air supplier configured to supply cold air into the storeroom. Where the cold air supplier comprises a heat exchanger producing cold air, a duct accommodating the heat exchanger and defining a flow path for air to pass through the heat exchanger, and a fan generating an air flow inside the duct. Where the heat exchanger comprises a tube in which a refrigerant flows and a fin coupled to an outer surface of the tube. Where the tube is eccentrically arranged to a side of the duct.

A general purpose enclosure is provided. A general purpose enclosure for housing an internal unit and providing complete protection against an ingress of dust and water, comprising a first housing and a second housing. A plurality of cooling fins and one or more pressure ports along an exterior surface of the first housing and the second housing. One or more pressure ports comprising a pneumatic valve, pressure sensor cap and a vent membrane such that pressure venting, and pressure testing may be performed by the one or more pressure ports. A method of assembling a general purpose enclosure to an internal unit, comprising applying the first housing and the second housing to the internal unit such that the first housing and the second housing encompass the internal unit and fastening the first housing to the second house.

A general purpose enclosure is provided. A general purpose enclosure for housing an internal unit and providing complete protection against an ingress of dust and water, comprising a first housing and a second housing. A plurality of cooling fins and one or more pressure ports along an exterior surface of the first housing and the second housing. One or more pressure ports comprising a pneumatic valve, pressure sensor cap and a vent membrane such that pressure venting, and pressure testing may be performed by the one or more pressure ports. A method of assembling a general purpose enclosure to an internal unit, comprising applying the first housing and the second housing to the internal unit such that the first housing and the second housing encompass the internal unit and fastening the first housing to the second house.

Disclosed is a personal small refrigerator using a Peltier. The small refrigerator includes a body having storage space formed therein, a front door a door. And the small refrigerator includes a division shelf having a plurality of air ventilation holes for dividing the storage space into upper storage space and lower storage space for passing cold air therethrough. Further, the small refrigerator includes a duct cover disposed inside the Peltier and having a return portion and top and bottom outlet portions formed on top and bottom thereof to exhaust the cold air generated through the heat exchange with the heat absorber of the Peltier from the return portion to the upper and lower portions of the storage space.

Disclosed is a personal small refrigerator using a Peltier. The small refrigerator includes a body having storage space formed therein, a front door a door. And the small refrigerator includes a division shelf having a plurality of air ventilation holes for dividing the storage space into upper storage space and lower storage space for passing cold air therethrough. Further, the small refrigerator includes a duct cover disposed inside the Peltier and having a return portion and top and bottom outlet portions formed on top and bottom thereof to exhaust the cold air generated through the heat exchange with the heat absorber of the Peltier from the return portion to the upper and lower portions of the storage space.

An air conditioning system includes an air conditioner mounted on a mobile body having a cold storage. The air conditioner includes a compressor, a condenser, a decompression device, an evaporator, and a blower. The air conditioning system includes a charge display device configured to display a charge related to a use of the air conditioner; and a controller configured to control an air conditioning operation. The controller includes: a load calculation unit that calculates an air conditioning load of the air conditioner; a charge calculation unit that calculates a usage charge based on the air conditioning load; and a charge display unit that displays the usage charge on the charge display device.

An air-conditioning system includes: an air conditioner mounted on a mobile body having a cold storage; an internal temperature sensor configured to measure an internal temperature inside the cold storage; a notification device configured to notify an error of the air conditioner; and a control unit configured to control an air-conditioning operation. The control unit includes an acquisition unit configured to acquire the internal temperature, a setting unit configured to set an appropriate temperature range of the cold storage, a determination unit configured to determine whether the internal temperature is within the appropriate temperature range, and a notification control unit configured to control an error notification using the notification device and perform a temperature error notification when the internal temperature is out of the appropriate temperature range after a pre-cooling by the air conditioner is completed, and does not perform the temperature error notification before the pre-cooling is completed.

A method of providing information about an object in a refrigerator is provided. The method includes: obtaining, using a camera, an image of a plurality of objects stored in the refrigerator; displaying the image on a display of the refrigerator; receiving a first user input indicating a first object from among the plurality of objects included in the image; and displaying a substitute image of the first object on the display based on the first user input.