Fan impeller mechanism for automobile air conditioner

The invention discloses a fan impeller mechanism for an automobile air conditioner. The fan impeller mechanism comprises an impeller and a motor hub, the impeller is formed by curved blades and a front disc, the motor hub is arranged at the other end and connected with the blades, an outer circle is formed by enclosing of the outer end portions of the blades, an inner circle is formed by enclosingof the inner end portions of the blades, the fan impeller mechanism is characterized in that the front rake of the impeller 7-8.5 degrees, and the inclined angle is an included angle formed between the diameter from the impeller circle center of the same plane on the same blade to the outer end portion of the corresponding blade and the diameter from the impeller circle center to the inner end portions of the blades; the flow inlet angle is 60-80 degrees, and the flow inlet angle is an included angle formed between the tangent on the inner circle at the inner end portions of the blades and the tangent of the arc line