Symmetrical series fan structure

Abstract

A symmetrical series fan structure includes multiple frame bodies made with single mold. Each frame body has a first through hole, a second through hole and a base having multiple connection members. The base is positioned in the second through hole on one side of the frame body and connected to the frame body via the connection members. The frame body has multiple fixing members and multiple fixing holes on the same side of the frame body as the base. The frame bodies are serially connected by means of inserting the fixing members into the fixing holes with the bases and the connection members of the frame bodies attached to each other. Accordingly, the frame bodies can be made with single mold and assembled to form the symmetrical series fan structure. In this case, the mold development cost is saved and the manufacturing cost is lowered.

1 . A symmetrical series fan structure comprising multiple frame bodies, each frame body having a first through hole, a second through hole and a base, the base having multiple connection members, the base being positioned in the second through hole on one side of the frame body and connected to the frame body via the connection members, the frame body having multiple fixing members and multiple fixing holes on the same side of the frame body as the base, the frame bodies being serially connected by means of inserting the fixing members into the fixing holes with the connection members of the frame bodies attached to each other. 
     
     
         2 . The symmetrical series fan structure as claimed in  claim 1 , wherein the fixing members are diagonally disposed on the side of the frame body. 
     
     
         3 . The symmetrical series fan structure as claimed in  claim 2 , wherein the fixing holes are diagonally disposed on the side of the frame body on different corners thereof, whereby when serially connecting the frame bodies, the fixing members of one frame body are inserted into the fixing holes of another frame body. 
     
     
         4 . The symmetrical series fan structure as claimed in  claim 1 , wherein the fixing members are disposed on the same lateral side of the frame body. 
     
     
         5 . The symmetrical series fan structure as claimed in  claim 4 , wherein the fixing holes are disposed on another lateral side of the frame body opposite to the fixing members, whereby when serially connecting the frame bodies, the fixing members of one frame body are inserted into the fixing holes of another frame body. 
     
     
         6 . The symmetrical series fan structure as claimed in  claim 1 , wherein when serially connecting the frame bodies, the base and the connection members of one frame body are attached to the base and the connection members of another frame body. 
     
     
         7 . The symmetrical series fan structure as claimed in  claim 1 , wherein a fan impeller is disposed in the first through hole of each frame body. 
     
     
         8 . The symmetrical series fan structure as claimed in  claim 1 , wherein a flow way is formed between the first and second through holes. 
     
     
         9 . The symmetrical series fan structure as claimed in  claim 1 , wherein the base is connected to the frame body via the connection members in straight form.