Small wind tunnel structure with high rotation speed and low noise

Abstract

The utility model discloses a high -speed low noise's small -size air duct structure, including with the motor seat of accommodation cavity, air duct shell, fan, multiple fan blade and cut wind net. Air duct is equipped with in the air duct shell, and the fan includes motor and rotary drum, and the plane of the side edge of every fan blade is all with the cross section of rotary drum and has the angle of 10~15 degrees and is inclined, and the cut wind net includes fixed ring and 4~6 groups of guide vane group, and every guide vane group includes one high guide vane and two low guide vanes, and in the side near first end, high guide vane is higher than low guide vane, and all from the end near fixed ring to the end far from fixed ring along the direction far from second end and is inclined, thereby all with the cross section of rotary drum and has the angle of 10~15 degrees. The utility model can effectively carding airflow, reduce turbulence generation, reduce wind resistance and energy loss, thereby effectively improve the air outlet air velocity and air outlet distance, and reduce the operating noise.

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