Delivery device

Abstract

A delivery device, for example a fan, may include a drive, a rotor, and an impeller connected rotationally conjointly to a rotor hub of the rotor. The impeller may be coupled to the rotor via one or more detent connections. According to an implementation, the rotor may have a pot-shaped structure.

1 . A delivery device comprising: a drive, a rotor, and an impeller connected rotationally conjointly to a rotor hub of the rotor, wherein the impeller is coupled to the rotor via a detent connection. 
     
     
         2 . The delivery device according to  claim 1 , wherein the rotor hub has a pot-shaped structure, and further including at least three detent hooks arranged on the impeller and projecting in an axial direction, wherein the at least three detent hooks engage behind an edge of the rotor hub when the impeller is installed. 
     
     
         3 . The delivery device according to  claim 1 , further comprising a spring element provided on at least one of the rotor hub and the impeller, wherein the spring element braces the impeller against the rotor hub. 
     
     
         4 . The delivery device according to  claim 2 , wherein the impeller and at least the at least three detent hooks are structured as a unipartite plastics injection-moulded part. 
     
     
         5 . The delivery device according to  claim 1 , wherein the rotor hub has a pot-shaped structure and includes at least three first openings and at least three second openings; and
 further including at least three hook elements and at least three clip elements arranged on the impeller, wherein the at least three hook elements engage behind an edge of an associated one of the at least three first openings when the impeller is installed, and the at least three clip elements engage into an associated one of the at least three second openings and fix the impeller rotationally conjointly to the rotor hub.   
     
     
         6 . The delivery device according to  claim 5 , wherein the at least three hook elements are oriented in a circumferential direction. 
     
     
         7 . The delivery device according to  claim 5 , wherein the at least three first openings narrow in a circumferential direction. 
     
     
         8 . The delivery device according to  claim 5 , wherein the at least three hook elements and the at least three clip elements are oriented oppositely to one another. 
     
     
         9 . The delivery device according to  claim 5 , wherein the impeller and at least the at least three hook elements are structured as a unipartite plastics injection-moulded part. 
     
     
         10 . The delivery device according to  claim 1 , wherein at least one of:
 the rotor hub is a plastics injection-moulded part, and   the delivery device is configured as a fan.   
     
     
         11 . The delivery device according to  claim 1 , further comprising a plurality of axially projecting detent hooks arranged on the impeller, wherein the plurality of axially projecting detent hooks engage behind an edge of the rotor hub when the impeller is installed. 
     
     
         12 . The delivery device according to  claim 1 , wherein the rotor hub includes a plurality of first openings and a plurality of second openings; and
 further including a plurality of hook elements and a plurality of clip elements arranged on the impeller;   wherein the plurality of hook elements engage behind an edge of a corresponding one of the plurality of first openings and the plurality of clip elements engage into a corresponding one of the plurality of second openings when the impeller is installed.   
     
     
         13 . The delivery device according to  claim 12 , wherein at least one of the plurality of hook elements is oriented oppositely to at least one of the plurality of clip elements. 
     
     
         14 . The delivery device according to  claim 2 , further comprising a spring element arranged to brace the impeller against the rotor hub. 
     
     
         15 . The delivery device according to  claim 14 , wherein the impeller and the at least three detent hooks are structured as a unipartite plastics injection-moulded part. 
     
     
         16 . The delivery device according to  claim 5 , wherein the rotor hub is structured as a plastics injection-moulded part. 
     
     
         17 . The delivery device according to  claim 6 , wherein the at least three hook elements and the at least three clip elements are oriented oppositely to one another. 
     
     
         18 . A delivery device, comprising:
 a drive;   a rotor including a rotor hub; and   an impeller connected rotationally conjointly to the rotor hub of the rotor;   wherein the impeller is coupled to the rotor at a detent connection including at least one detent mechanism.   
     
     
         19 . The delivery device according to  claim 18 , wherein the at least one detent mechanism includes a plurality of detent hooks arranged on the impeller and projecting in an axial direction of the rotor, and wherein the plurality of detent hooks engage behind an edge of the rotor hub when the impeller is installed. 
     
     
         20 . The delivery device according to  claim 18 , wherein the at least one detent mechanism includes a plurality of hook elements and a plurality of clip elements arranged on the impeller;
 wherein the rotor hub includes a plurality of first openings and a plurality of second openings; and   wherein the plurality of hook elements engage behind an edge of a corresponding one of the plurality of first openings and the plurality of clip elements engage into a corresponding one of the plurality of second openings when the impeller is coupled to the rotor.