Centrifugal fan applying grating type noise reduction current collector

The utility model discloses a centrifugal fan applying a grating type noise reduction current collector, and aims to provide the centrifugal fan applying the grating type noise reduction current collector, which can effectively solve the problem that the working noise is increased due to non-uniform airflow distribution of airflow entering an inlet of the centrifugal fan so as to effectively reduce the working noise of the centrifugal fan. The fan impeller assembly is rotationally arranged on the fan support, the first current collector and the second current collector are fixed to the fan support, and the fan impeller assembly comprises a fan impeller and a fan front disc located on the front side of the fan impeller. The first current collector, the second current collector, the fan front disc and the fan impeller are sequentially distributed in the axial direction of a rotating shaft of the fan impeller assembly, the first current collector comprises a first flow guide cover and a noise reduction grid arra