Heat exchanger

A heat exchanger comprising:

• header tanks including a first header tank and a second header tank spaced apart from each other at a predetermined distance;
• a core part including tubes each having both ends fixed to the first header tank and the second header tank respectively;
• and
• a manifold including an insertion portion inserted into the first header tank at one side of the first header tank in a length direction and a connection portion bonded to end portions of an inlet pipe and an outlet pipe through which a heat exchange medium is introduced and discharged respectively,
• wherein the first header tank includes a fixing baffle formed at one side of the first header tank in the length direction, and configured to shield one open side of the first header tank,
• the fixing baffle includes a fixing baffle body for shielding one open side of the first header tank, and a fixing baffle hole formed to be hollow in the fixing baffle body,
• the insertion portion of the manifold is inserted and bonded into the fixing baffle hole of the fixing baffle, so that the manifold is coupled to one side of the first header tank in the length direction,
• the core part further includes a support disposed on an outermost side in a direction in which the tubes are arranged, and inserted and coupled into the header tanks,
• the support is inserted and fixed into the header tanks on a further outward side in the length direction of the header tank than the fixing baffle, and
• the support is disposed between the manifold and the fixing baffle.