High-efficiency low-noise high-pressure ventilator

The utility model relates to the technical field of fans, in particular to a high-efficiency low-noise high-pressure fan, which overcomes the problems of low efficiency and high noise of the existing fan and is provided with a motor and a rotating vane, the motor is fixed on an air duct through a support, the rotating vane is positioned in the air duct and takes the air flow blowing-out direction as the front, and the rotating vane is positioned behind the motor. The bracket is positioned at the front opening part of the air duct, the bracket is provided with an inner ring plate for mounting the motor, a plurality of rib plates which are circumferentially and equally divided into the outer ring of the inner ring plate and radially extend out, and a fixing lug arranged at the outer end of a single rib plate or a fixing ring arranged on the outer rings of all rib plates, and the bracket is mounted on the air duct through the fixing lug or the fixing ring; the rib plate is close to the rotating vane in the axial