Range hoods and vehicles

Abstract

Disclosed are a range hood and a vehicle. The range hood includes a box, a fan, and a first baffle ring. The box is provided with an accommodation cavity, and an air inlet and an air outlet communicating with the accommodation cavity. The fan is at least partially housed in the accommodation cavity, and includes an impeller and a motor which is connected to and configured to drive the impeller. In the axial direction of the impeller, projection of the impeller is within projection of the air inlet. There is a gap between the projection of the impeller and the projection of the air inlet. A projection of the first baffle ring covers the gap in the axial direction of the impeller.

What is claimed is: 
     
         1 . A range hood comprising:
 a box provided with an accommodation cavity, and an air inlet and an air outlet communicating with the accommodation cavity;   a fan at least partially housed in the accommodation cavity, the fan comprising an impeller and a motor which is connected to and configured to drive the impeller, wherein a projection of the impeller is within a projection of the air inlet in an axial direction of the impeller, a gap existing between the projection of the impeller and the projection of the air inlet; and   a first baffle ring, wherein a projection of the first baffle ring covers the gap in the axial direction of the impeller.   
     
     
         2 . The range hood according to  claim 1 , wherein the impeller comprises an impeller body which is connected to and driven by the motor and a second baffle ring connected to a peripheral edge of the impeller body, the second baffle ring extending along the axial direction of the impeller, the first baffle ring extending along a radial direction of the impeller, and an inner ring of the first baffle ring being connected to the second baffle ring. 
     
     
         3 . The range hood according to  claim 2 , wherein the first baffle ring has a side located opposite to the accommodation cavity which is connected in a smooth transition way to an inner ring of the second baffle ring. 
     
     
         4 . The range hood according to  claim 3 , wherein the inner ring of the first baffle ring extends to form a guide arc ring facing away and protruding beyond the motor, and the guide arch ring is connected to the second baffle ring. 
     
     
         5 . The range hood according to  claim 2 , wherein the first baffle ring is connected to the outer peripheral edge of the impeller, and the first baffle ring and the box define an air passage communicating with the gap. 
     
     
         6 . The range hood according to  claim 5 , wherein a depth of the air passage in the axial direction of the impeller ranges from 3 mm to 8 mm. 
     
     
         7 . The range hood according to  claim 2 , wherein the first baffle ring, the second baffle ring and the impeller are integrally formed. 
     
     
         8 . The range hood according to  claim 1 , wherein the box comprises a box body provided with the accommodation cavity and the air outlet, and a first housing detachably connected to the box body, the first housing provided with the air inlet which tapers toward the fan. 
     
     
         9 . The range hood according to  claim 1 , further comprising:
 a motor bracket detachably connected to an outer surface of the box,   wherein the motor bracket extends from the air inlet into the accommodation cavity, and the motor is provided on the motor bracket.   
     
     
         10 . The range hood according to  claim 9 , wherein the motor bracket is locked to the box body through screws. 
     
     
         11 . The range hood according to  claim 1 , wherein an extending direction of the air inlet is different from an extending direction of the air outlet. 
     
     
         12 . The range hood according to  claim 1 , wherein the fan is configured as an axial flow fan. 
     
     
         13 . A vehicle comprising the range hood according to  claim 1 .