Abstract: A header box includes a first bottom plate and an unperforated cover plate. The first bottom plate includes a first surface and a second surface opposite to the first surface. The first bottom plate is of a one-piece configuration. The first surface is recessed inwardly to form a straight first hole extending along a length direction. The second surface is recessed inwardly to form at least two straight second holes extending along a width direction perpendicular to the length direction. The first hole is communicated with the at least two second holes. The cover plate is connected to the first surface to block an opening of the first hole on the first surface. A heat exchanger having the header box is also disclosed.

Abstract: The present disclosure discloses a header box and a heat exchanger. The header box includes a cover plate and a bottom plate. The cover plate is provided with a groove extending along a length direction of the cover plate. The groove includes an opening portion. The bottom plate is provided with a number of openings for inserting flat tubes. The opening extends through an upper surface and a lower surface of the bottom plate. The opening includes a first opening close to the cover plate and a second opening away from the cover plate. A cross-sectional area of the first opening is larger than a cross-sectional area of the second opening. The opening portion of the groove is provided toward the bottom plate. As a result, high pressure resistant performance of the header box and the heat exchanger can be achieved.

Abstract: A heat exchanger can include a plurality of flat tubes each having a heat exchange channel for a flow of a heat exchange medium, and a first collector pipe and a second collector pipe connected to distal sections of the plurality of flat tubes and disposed side by side. Chambers of the first collector pipe and the second collector pipe can be in communication with the heat exchange channels of the flat tubes. The flat tube includes a main body section, a distal section, and a torsion section connected therebetween. The main body section and the distal sections can be straight sections. The first collector pipe and the second collector pipe can be provided with mounting holes for the distal section being inserted into. A length direction of the mounting hole can be inclined to the axis of the first collector pipe or the axis of the second collector pipe.