Refrigerator employing rotating magnetic array device and magnetic cooling apparatus

A refrigerator comprising:

• a main body provided with at least one storage chamber;
• and
• a cold air supply apparatus provided with a rotating magnetic array device and a cold energy extracting device for extracting cold energy generated by the rotating magnetic array device, and supplying the cold energy to the storage chamber,
• wherein the rotating magnetic array device comprises:
• a magnetic field generator including a plurality of magnetic poles generating a magnetic field, and being rotatable about a rotary shaft;
• and
• a plurality of magnetic material portions including a plurality of heat generators generating heat energy and the cold energy according to rotation of the magnetic field generator, and
• the plurality of magnetic material portions are arranged on a circumference based on the rotary shaft, so as to simultaneously include a first magnetic material portion facing a center of one of the plurality of magnetic poles, a second magnetic material portion facing one of the plurality of magnetic poles and not facing a center of the magnetic pole, and a third magnetic material portion facing a space between two of the plurality of magnetic poles.