Composite heat exchanger for electric vehicle

A composite heat exchanger comprising:

• a plurality of tubes disposed in two front and rear rows;
• first and second header tanks connected to two opposite ends of the overall tube rows and each having a partition wall that divides a fluid flow space into a front space and a rear space;
• a front core defined by a front tube row and configured to communicate with the front spaces of the first and second header tanks;
• and
• a rear core defined by a rear tube row and configured to communicate with the rear spaces of the first and second header tanks,
• wherein a part of the front core defines a first heat exchange part in which a coolant flows,
• wherein the remaining part of the front core defines a second heat exchange part in which a refrigerant flows, and
• wherein the rear core defines a third heat exchange part in which a separate heat exchange medium flows.