Centrifugal fan and air conditioner

Abstract

The invention relates to a centrifugal fan and an air conditioner in the technical field of air conditioners, the centrifugal fan comprises a volute and an impeller, the volute is provided with an air inlet and an air outlet, the impeller is arranged in the volute, an air duct structure comprises n partition plates, and n is larger than or equal to 2; n partition plates are designed to be arranged in the volute at different radial positions and extend in the unfolding direction of the volute molded line; the front ends, away from the air outlet, of the n partition plates are not located on the same circumferential angle, the closer the partition plates on the side wall of the volute are, the larger the circumferential angle of the partition plates on the side wall of the volute is, through the multi-layer and asymmetric flow channel division design of the n partition plates, the aerodynamic performance, efficiency and noise performance of the centrifugal fan are comprehensively improved, and the service life of the centrifugal fan is prolonged. And the complex three-dimensional flowing air flow in the volute is precisely regulated and controlled.

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