Ventilation Assembly

Abstract

A ventilation assembly for a vehicle has a stationary load-bearing structure, including an outer frame and an inner annular support element connected to the frame by means of a plurality of spokes. The support element has a cylindrical outer skirt. An electric motor has an inner stator fixed to the annular support element and an outer rotor which extends around the stator. A fan fixed to the rotor, has a hollow hub from which a plurality of blades extend. The hub extends around the rotor and has a front wall and an annular, side wall which surrounds the motor. The side wall of the hub of the fan partially penetrates inside the skirt of the annular support element in the axial direction.

1 . Ventilation assembly, for a heat exchanger of a motor vehicle, comprising:
 a stationary load-bearing structure, including an outer frame and an inner support element connected to the frame by means of a plurality of spokes, the support element having a skirt;   an electric motor, including an inner stator fixed to the annular support element of the load-bearing structure and an outer rotor which extends around the stator; and   a fan, fixed to the rotor of the motor and having a hollow hub from which a plurality of blades extend; the hub and having a front wall and a side wall which extends around the rotor of the motor,   wherein the skirt of the support element and the side wall of the hub partially penetrate one inside the other in the axial direction.   
     
     
         2 . The ventilation assembly of  claim 1 , wherein the side wall of the hub of the fan extends radially inside the skirt of the support element of the stationary load-bearing structure. 
     
     
         3 . The ventilation assembly of  claim 1 , wherein the side wall of the hub of the fan and the skirt of the support element have respective wall extensions made of molded plastic. 
     
     
         4 . The ventilation assembly of  claim 1 , wherein the electric motor is a brushless motor. 
     
     
         5 . The ventilation assembly of  claim 1 , wherein the inner support element is annular and the skirt is a cylindrical, outer skirt. 
     
     
         6 . The ventilation assembly of  claim 1 , wherein the side wall of the hub extends axially from a periphery of the front wall. 
     
     
         7 . The ventilation assembly of  claim 1 , wherein the side wall is annular. 
     
     
         8 . The ventilation assembly of  claim 1 , wherein the side wall is cylindrical.