Impeller device

The invention discloses an impeller device. The impeller device comprises a shaft disc. The shaft disc is fixedly connected with a wheel disc. A plurality of blades evenly distributed in a circular array manner are arranged on the wheel disc with the center axis of the shaft disc as the reference axis and around the reference axis. The blades are in an arc shape. The blades are fixedly connected with an arc wheel cover. The included angle formed between the heads of the blades and the horizontal line ranges from 37 degrees to 39 degrees. The included angle between the tangent line of the joint of the tails of the blades and the wheel cover and the horizontal line ranges from 125 degrees to 127 degrees. The impeller device has the beneficial effects that due to the fact that the blades are in an arc shape, air can easily enter the impeller device through the blades in the arc shape, the collision between airflow and the blades can be greatly weakened, the resistance to the blades from the airflow is reduced, and the purpose of lowering noise is achieved. The included angle formed between the heads of the blades and the horizontal line ranges from 37 degrees to 39 degrees, and the included angle between the tangent line of the joint of the tails of the blades and the wheel cover and the horizontal line ranges from 125 degrees to 127 degrees. According to the design, air can further easily enter the blades and then flow out of the blades, the air flowing resistance is reduced, and the air outlet volume is increased.