The invention discloses a
motor noise-reducing structure of a
dust collector. The
motor noise-reducing structure of the
dust collector comprises a motor inner cover, wherein the motor inner cover is installed at the outer side of a
dust collector motor, a first
airflow cavity is formed between the motor inner cover and the dust collector motor, and the first
airflow cavity is internally provided with a
spiral flow guide plate; a motor outer cover, wherein the motor outer cover is installed at the outer side of the motor inner cover, a second
airflow cavity is formed between the motor outer cover and the motor inner cover, the motor outer cover is a double-layer structure, the motor outer cover comprises an outer cover inner ring and an outer cover outer ring, a cavity is formed between theouter cover inner ring and the outer cover outer ring, the cavity is internally provided with a plurality of separating plates, and the separating plates are used for separating the cavity to form aplurality of
noise-reducing cavities; and a shock ring, wherein the shock ring is circle-shaped, the shock ring is installed between the motor outer cover and a dust collector housing. The solution uses the
noise-reducing structure, has the functions of sound insulation, shock absorption and
noise reduction, and is capable of solving the technical problem that the noise of a current dust collectoris larger.