Cooling fan nave seat with air guide effect is arranged in air channel between two opposing sides of frame and has body and shoulder

摘要

The cooling fan nave seat with air guide effect is arranged in an air channel (113) between opposing sides (111,112) of the frame (11) and has a body (131) and a shoulder (132). The shoulder extends to the side (111) and evolves into a narrowing concave area (133) around the middle axis, which in the center forms a peak (134). The blade wheel is rotatably located on the body of the nave seat (13). The shoulder is flow line-shaped. The nave seat is connected by a number of ribs with the inner wall of the frame and is held in the air channel of the frame. On the inner wall of the frame a number of air guides are provided, which have a connecting end and a free end. The connecting ends of the air guides are connected with the inner wall of the frame and the free ends of the air guides are directed to the nave seat. Between the free ends and the nave seat a first free space is formed.