Ventilation unit

Abstract

A ventilation unit includes an axial fan having an axis of rotation; an electric motor for driving the axial fan and comprising a casing, a cap coupled to the casing to form a sealed enclosure and an electronic control system at least partly housed in the enclosure; a shroud supporting the electric motor and having an outer frame for mounting the ventilation unit, an inner collar supporting the electric motor, a plurality of spokes for connecting the inner collar to the outer frame; a first spoke of the shroud comprises a compartment for housing at least one electronic component forming part of the electronic control system.

1 . A ventilation unit comprising
 an axial fan having an axis of rotation   an electric motor for driving the axial fan and comprising a casing, a cap coupled to the casing to form a sealed enclosure and an electronic control system at least partly housed in the enclosure and comprising a plurality of electronic components, the ventilation unit further comprising   a shroud supporting the electric motor and having an outer mounting frame, an inner collar supporting the electric motor, a plurality of spokes for connecting the inner collar to the outer frame; the ventilation unit being wherein a first spoke of the spokes comprises means for housing a first electronic component of the electronic components, the first electronic component being mounted in the housing means.   
     
     
         2 . The ventilation unit according to  claim 1 , wherein the housing means are formed in the first spoke. 
     
     
         3 . The ventilation unit according to  claim 1 , wherein the housing means comprise a compartment at least for the first electronic component. 
     
     
         4 . The ventilation unit according to  claim 3 , wherein the compartment is located in the vicinity of the inner collar. 
     
     
         5 . The ventilation unit according to  claim 3 , wherein the compartment extends mainly parallel to the axis of rotation. 
     
     
         6 . The ventilation unit according to  claim 3 , wherein along the axis of rotation the size of the compartment is comparable to the size of the inner collar along the same axis of rotation. 
     
     
         7 . The ventilation unit according to  claim 1 , wherein the first electronic component mounted in the housing means is an electrolytic capacitor. 
     
     
         8 . The ventilation unit according to  claim 7 , wherein the electrolytic capacitor is mounted in the compartment, the electrolytic capacitor and the compartment each having a main direction of extension which is parallel to the axis of rotation. 
     
     
         9 . The ventilation unit according to  claim 1 , wherein the first electronic component is an inductor. 
     
     
         10 . The ventilation unit according to  claim 9 , wherein the inductor is mounted in the housing means in such a way that its main direction of extension is parallel to the main direction of extension of the first spoke. 
     
     
         11 . The ventilation unit according to  claim 10 , wherein the first spoke has a groove, the inductor being mounted inside the groove. 
     
     
         12 . The ventilation unit according to  claim 1 , wherein the first electronic component mounted in the housing means is an electrolytic capacitor, the electrolytic capacitor being mounted in the housing means in such a way that its main direction of extension is parallel to the axis of rotation, the electronic system comprising a second electronic component, being an inductor, mounted in the housing means in such a way that its main direction of extension is parallel to the main direction of extension of the first spoke. 
     
     
         13 . The ventilation unit according to  claim 3 , wherein it comprises a cover for closing the compartment, the compartment being sealed by the cover. 
     
     
         14 . A shroud comprising an outer mounting frame, an inner collar for supporting an electric fan having an axis of rotation, a plurality of spokes for connecting the inner collar to the outer frame, the shroud being wherein a first spoke of the spokes comprises means for housing at least one electronic component of an electronic control system for the electric fan, the housing means being formed in the first spoke and comprising a compartment for the electronic component. 
     
     
         15 . The shroud according to  claim 14 , wherein the compartment is located in the vicinity of the inner collar, extends mainly parallel to the axis of rotation and, along the axis of rotation, its size is comparable to the size of the inner collar along the same axis of rotation.