Blower device for a respirator

Abstract

A blower device for a respiratory protection system comprises a fan for generating an airflow, further comprises at least one filter element which is configured to be flown through by the airflow, comprises a housing unit accommodating the fan and the at least one filter element and comprises an air conveying channel, which accommodates the filter element and is configured for guiding an airflow between the filter element and the fan, wherein the air conveying channel is configured for a deflection of an airflow between the fan and the filter element,wherein the air conveying channel is embodied separately from the housing unit and the at least one filter element is fixedly integrated in the air conveying channel.

1 . A blower device for a respiratory protection system, with a fan for generating an airflow, with at least one filter element which is configured to be flown through by the airflow, with a housing unit accommodating the fan and the at least one filter element, and with an air conveying channel, which accommodates the filter element and is configured for guiding the airflow between the filter element and the fan, wherein the air conveying channel is configured for a deflection of an airflow between the fan and the filter element,
 wherein the air conveying channel is embodied separately from the housing unit and the at least one filter element is fixedly integrated in the air conveying channel, and wherein the filter element is arranged along the airflow fluidically upstream of the fan,   wherein   the housing unit has a thickness d of less than 70 mm, wherein the air conveying channel is realized so as to be removable from the housing unit, and wherein the at least one filter element is connected to the air conveying channel at least partly by substance-to-substance bond.   
     
     
         2 . The blower device according to  claim 1 ,
 wherein   the air conveying channel and the at least one filter element form a filter exchange module.   
     
     
         3 . (canceled) 
     
     
         4 . The blower device according to  claim 1 ,
 wherein   the air conveying channel forms a filter frame of the at least one filter element.   
     
     
         5 . The blower device according to  claim 1 ,
 wherein   a flow-in direction of the airflow into the air conveying channel is substantially different from a flow-out direction of the airflow out of the air conveying channel.   
     
     
         6 . The blower device according to  claim 1 ,
 wherein   the air conveying channel has an inlet opening and an outlet opening, an opening cross section of the inlet opening being substantially larger than an opening cross section of the outlet opening ( 114   a ;  114   b ).   
     
     
         7 . The blower device according to  claim 1 ,
 comprising a further filter element, which is situated next to the fan and which is fixedly integrated in the air conveying channel.   
     
     
         8 . The blower device according to  claim 7 ,
 wherein   the air conveying channel, the filter element and the further filter element form a filter exchange module, in particular an alternative filter exchange module.   
     
     
         9 . (canceled) 
     
     
         10 . The blower device according to  claim 1 ,
 wherein   the fan is configured to create a volume flow of the airflow of at least 50 l/min and maximally 250 l/min.   
     
     
         11 . A respiratory protection system, in particular a blower respiratory protection system, with a blower device according to  claim 1  and with at least one mouth protection device. 
     
     
         12 . The respiratory protection system according to  claim 11 ,
 wherein   the at least one blower device is configured to create a positive pressure in the mouth protection device.