Refrigerator

A refrigerator, comprising:

• a main body having a first storage compartment;
• a first evaporation compartment provided within the main body in order to cool the first storage compartment;
• a first evaporator provided in the first evaporation compartment;
• a second storage compartment independently provided in the first storage compartment and the second storage compartment including:
• a case forming an insulation space so as to maintain a temperature lower than the first storage compartment;
• and
• a drawer to be received in or withdrawn from the insulation space and including a storage box and a door formed on a front surface of the storage box;
• a second evaporation compartment, independent from the first evaporation compartment, formed in the second storage compartment;
• a second evaporator provided in the second evaporation compartment;
• a cool air guide partitioning the case into the second evaporation compartment and a storage space to receive the drawer, the cool air guide having a cool air outlet and a cool air inlet;
• a cooling fan installed in the cool air inlet to take cool air of the storage space into the second evaporation compartment;
• and
• a heat exchange plate provided in the second evaporation compartment, the heat exchange plate configured to partition the second evaporation compartment into a first cool air passage and a second cool air passage, the first cool air passage being defined at a front of the heat exchange plate and the second cool air passage being defined at a rear portion of the heat exchange plate,
• wherein the heat exchange plate includes:
• a cool air inflow hole formed at one side thereof;
• and
• a cool air outflow hole formed at an other side thereof,
• wherein the second evaporator is a meandering coolant pipe and is disposed on a rear surface of the heat exchange plate to be exposed in the second cool air passage,
• wherein the cool air in the storage space is configured to be discharged by the cooling fan,
• wherein a portion of the cool air discharged by the cooling fan is introduced in the first cool air passage through the cool air inlet of the cool air guide to indirectly heat exchange with the second evaporator through a front surface of the heat exchange plate, and flows into the storage space through the cool air outlet of the cool air guide, and
• wherein an other portion of the cool air is introduced through the cool air inflow hole of the heat exchange plate to directly heat exchange with the second evaporator, and flows into the first cool air passage through the cool air outflow hole of the heat exchange plate.