Fan wheel for a blower module

Abstract

The invention relates to a fan wheel ( 6 ) for a blower module ( 2 ), comprising a hub ( 5 ) and a radial fan ring ( 8 ) composed of a plurality of fan blades ( 12 ) and further comprising means for resolving imbalances in the fan wheel ( 6 ). According to the invention, balancing weights ( 18 ) can be fastened to the radial ends of the fan blades ( 12 ).

1 . A fan wheel ( 6 ) for a blower module ( 2 ), having a hub ( 5 ) and having a radial fan ring ( 10 ), which is made up of a multiplicity of fan blades ( 12 ), and having means for eliminating imbalances in the fan wheel ( 6 ), characterized in that balancing weights ( 18 ) are arranged at radial ends of the fan blades ( 12 ). 
     
     
         2 . The fan wheel as claimed in  claim 1 , characterized in that the balancing weights are clip elements ( 18 ) plugged in a force-fitting manner onto the ends of the fan blades ( 12 ). 
     
     
         3 . The fan wheel as claimed in  claim 2 , characterized in that an inside and an outside of the fan blades ( 12 ) contain grooves ( 20 ,  22 ), in which the clip elements ( 18 ) engage in a form-fitting manner by way of clamping edges. 
     
     
         4 . The fan wheel as claimed in  claim 3 , characterized in that the radial fan ring ( 10 ) comprises short and long fan blades ( 14 ,  16 ), wherein the grooves ( 20 ,  22 ) are formed at the end of the long fan blades ( 14 ). 
     
     
         5 . The fan wheel as claimed in  claim 3 , characterized in that the fan wheel ( 6 ) is produced by injection molding, wherein the grooves ( 20 ,  22 ) are demolded from the mold without any additional outlay. 
     
     
         6 . A blower module with a drive unit comprising an electric motor, on a drive shaft of which a fan wheel ( 6 ) according to  claim 1  is arranged in a rotationally fixed manner. 
     
     
         7 . The fan wheel as claimed in  claim 1 , characterized in that the balancing weights are designed as clip elements ( 18 ) which can be plugged in a form-fitting manner onto the ends of the fan blades ( 12 ). 
     
     
         8 . The fan wheel as claimed in  claim 7 , characterized in that the balancing weights are designed as clip elements ( 18 ) which can be plugged in a force-fitting manner onto the ends of the fan blades ( 12 ). 
     
     
         9 . The fan wheel as claimed in  claim 7 , characterized in that an inside and an outside of the fan blades ( 12 ) contain grooves ( 20 ,  22 ), in which the clip elements ( 18 ) engage in a form-fitting manner by way of clamping edges. 
     
     
         10 . The fan wheel as claimed in  claim 8 , characterized in that an inside and an outside of the fan blades ( 12 ) contain grooves ( 20 ,  22 ), in which the clip elements ( 18 ) engage in a form-fitting manner by way of clamping edges. 
     
     
         11 . The fan wheel as claimed in  claim 9 , characterized in that the radial fan ring ( 10 ) comprises short and long fan blades ( 14 ,  16 ), wherein the grooves ( 20 ,  22 ) are formed at the end of the long fan blades ( 14 ). 
     
     
         12 . The fan wheel as claimed in  claim 10 , characterized in that the radial fan ring ( 10 ) comprises short and long fan blades ( 14 ,  16 ), wherein the grooves ( 20 ,  22 ) are formed at the end of the long fan blades ( 14 ). 
     
     
         13 . The fan wheel as claimed in  claim 4 , characterized in that the fan wheel ( 6 ) is produced by injection molding, wherein the grooves ( 20 ,  22 ) are demolded from the mold without any additional outlay. 
     
     
         14 . The fan wheel as claimed in  claim 11 , characterized in that the fan wheel ( 6 ) is produced by injection molding, wherein the grooves ( 20 ,  22 ) are demolded from the mold without any additional outlay. 
     
     
         15 . The fan wheel as claimed in  claim 12 , characterized in that the fan wheel ( 6 ) is produced by injection molding, wherein the grooves ( 20 ,  22 ) are demolded from the mold without any additional outlay. 
     
     
         16 . A blower module as claimed in  claim 6 , characterized in that the balancing weights are clip elements ( 18 ) plugged in a force-fitting manner onto the ends of the fan blades ( 12 ). 
     
     
         17 . A blower module as claimed in  claim 16 , characterized in that an inside and an outside of the fan blades ( 12 ) contain grooves ( 20 ,  22 ), in which the clip elements ( 18 ) engage in a form-fitting manner by way of clamping edges. 
     
     
         18 . A blower module as claimed in  claim 17 , characterized in that the radial fan ring ( 10 ) comprises short and long fan blades ( 14 ,  16 ), wherein the grooves ( 20 ,  22 ) are formed at the end of the long fan blades ( 14 ). 
     
     
         19 . A blower module as claimed in  claim 17 , characterized in that the fan wheel ( 6 ) is produced by injection molding, wherein the grooves ( 20 ,  22 ) are demolded from the mold without any additional outlay. 
     
     
         20 . A blower module as claimed in  claim 6 , characterized in that the balancing weights are designed as clip elements ( 18 ) which can be plugged in a form-fitting manner onto the ends of the fan blades ( 12 ).