Patent ID: 8707722

Claim:
A heat exchanger, comprising: an upper header tank and a lower header tank, the lower header tank including an uppermost portion that defines a plurality of openings; a plurality of tubes communicating with both the upper header tank and the lower header tank, each tube received within a different one of the plurality of openings in the lower header tank; a plurality of fins provided between neighboring tubes; and condensed water drain units provided with respective fitting parts closely fitted onto ends of the tubes, each condensed water drain unit is separate from and located atop the uppermost portion of the lower header tank to extend over the uppermost portion, wherein the condensed water drain units drain condensed water collected in a space defined by the lower header tank, the tubes and the fins, wherein each of the condensed water drain units is provided with a protrusion rib, which extends downwards from an associated fitting part and is in direct contact both with part of an upper surface and with a front surface of the lower header tank.