Heat dissipation structure of heating ventilation air conditioner

The utility model discloses a heat dissipation structure of a heating ventilation air conditioner, and relates to the technical field of heating ventilation air conditioners. The main body assembly comprises a mounting plate, a fan clamped at the central position of the end surface of the mounting plate, and clamping blocks respectively connected to the peripheries of the front end surface and the rear end surface of the mounting plate in a sliding manner; the mounting assembly comprises sleeve rods rotationally connected to the upper portion and the lower portion of the mounting plate through mounting bases correspondingly, inner rods with one ends in threaded connection with the inner sides of the sleeve rods in a sleeving mode, and abutting plates rotationally connected to the other ends of the inner rods. Through the arrangement of the main body assembly, the fan is fixed on the mounting plate through the clamping blocks which are installed in a sliding mode, the problem that in the prior art, the fan is