Air outlet noise reduction structure of central air conditioner

The utility model relates to the technical field of noise reduction structures, in particular to a central air conditioner air outlet noise reduction structure which comprises a noise reduction box, the noise reduction box is of an integral structure formed by polyurethane materials through mold injection molding, the interior of the noise reduction box is of a hollow structure, and the interior of the hollow structure of the noise reduction box is filled with sound insulation materials. The type of the sound insulation material is melamine foam. The top end of the noise reduction box communicates with a central air conditioner air outlet pipe, and a square opening is formed in the top end of the noise reduction box. According to the noise reduction device, the driving mechanism is arranged, after air conditioner air is blown into the noise reduction box through the air outlet pipe of the central air conditioner, the fluted disc can be driven to rotate through rotation of the driving motor, and therefore the