Heat exchange unit, heat exchange assembly, filter element, air treatment device and vehicle

The utility model provides a heat exchange unit, a heat exchange assembly, a filter element, an air processing device and a vehicle. The heat exchange unit comprises a corrugated heat exchange partition plate with a corrugated structure and a corrugated supporting partition plate with a corrugated structure. The corrugation pitch of the corrugation heat exchange partition plate is the same as that of the corrugation supporting partition plate, and the corrugation height of the corrugation heat exchange partition plate is smaller than that of the corrugation supporting partition plate; the corrugated heat exchange partition plates and the corrugated supporting partition plates are arranged in a stacked mode in the direction that the wave troughs are concave downwards or the wave crests are convex upwards, and the wave crests of the corrugated heat exchange partition plates abut against the wave crests of the corrugated supporting partition plate layer, or the wave troughs of the corrugated heat exchange partition plates abut against the wave troughs of the corrugated supporting partition plates. The heat exchange area can be increased, meanwhile, the strength of the whole structure can be improved, and follow-up installation and use are facilitated.