Manifold assembly and heat exchanger

Abstract

Disclosed in the present invention are a manifold assembly and a heat exchanger. The manifold assembly includes a manifold and a connecting tube assembly. The connecting tube assembly includes an adapter and a steering member. The adapter includes: a tubular part located outside the manifold; and a step part protruding inward from the inner surface of the tubular part at the end portion of the tubular part facing the manifold. The steering member includes: an end wall, a connecting wall extending from the end wall along a direction intersecting the axial direction of the manifold, and a step part protruding outward from the connecting wall at the end portion of the connecting wall away from the end wall. The steering member is inserted into a through hole of the manifold by means of an inner hole of the adapter; the side of the step part of the steering member facing the end wall abuts against the step part of the adapter; and the part of the connecting wall inserted into the manifold is provided with openings that penetrate through the connecting wall. According to the manifold assembly of the present invention, direct impact of a fluid from an inlet on a flat tube is avoided, and the manufacturing and assembly processes are simple and the costs are low.