Noise reduction outer rotor fan

The utility model relates to the technical field of fans, in particular to a noise reduction outer rotor fan. According to the technical scheme, the device comprises a shell, a supporting frame and a mounting plate, a fan assembly is movably mounted in the shell, a sound absorption plate is fixedly connected to the position, on the periphery of the fan assembly, in the shell, a fixing seat is fixedly mounted at the bottom of the shell, a damping pad is fixedly connected to the bottom of the fixing seat, and a connecting plate is fixedly mounted at the bottom of the damping pad; a supporting frame is movably mounted at the bottom of the connecting plate, an inserting block is fixedly connected to the top of the supporting frame, a mounting plate is movably mounted at the bottom of the supporting frame, and a limiting block is fixedly connected to the top of the mounting plate. Through the combination of various structures, noise pollution generated during operation of the device can be effectively reduced, the