Heat exchanger

The utility model discloses a heat exchanger, include two pressure manifolds of parallel arrangement and install the flat pipe between two pressure manifolds, the end of flat pipe is provided with in the pressure manifold separated pair of baffle of two adjacent heat transfer system's flow path in inserting the pressure manifold, is provided with thermal -insulated space between two baffles, be equipped with the strengthening rib between two baffles. The utility model discloses adding between two baffles and establishing the strengthening rib, this strengthening rib can support two baffles completely in certain radial direction, increase the intensity at two baffles middle parts, reduces the baffle and warp, prevents that baffle and pressure manifold splice from tearing the leakage, satisfies the burst strength requirement of product.