Swing fan structure

Abstract

A swing fan structure includes a main body and multiple blades. The main body has an upper face and a lower face. The main body also has a long side and a short side. The blades are side by side disposed on the upper face of the main body in parallel to each other. The blades define therebetween a flow way. The blades are drivable by the main body to reciprocally move along the long side to create an air volume. The swing fan structure has a greatly minified volume. Also, the swing fan structure overcomes the shortcoming of unstable operation of the conventional fan caused by deflection of the blades in rotation.

What is claimed is: 
     
         1 . A swing fan structure comprising:
 a main body having an upper face and a lower face opposite to the upper face, the main body also having a long side and a short side; and   multiple blades side by side disposed on the upper face of the main body in parallel to each other, the blades defining therebetween a flow way, the blades being drivable by the main body to reciprocally move along the long side.   
     
     
         2 . A swing fan structure comprising:
 a main body having an upper face and a lower face opposite to the upper face, the main body also having a long side and a short side; and   multiple blades side by side disposed on the upper face of the main body in parallel to each other, each blade having a locating section disposed on the upper face and a first end extending from the locating section along the short side of the main body, the blades defining therebetween a flow way, the blades being drivable by the main body to reciprocally move along the long side.   
     
     
         3 . The swing fan structure as claimed in  claim 2 , further comprising a case having at least one bottom board and two sidewalls disposed on two opposite sides of the bottom board, the bottom board and the sidewalls together defining a receiving space for receiving the main body and the blades, the receiving space communicating with the flow way between the blades. 
     
     
         4 . The swing fan structure as claimed in  claim 1 , wherein the blades are wing-shaped. 
     
     
         5 . The swing fan structure as claimed in  claim 3 , wherein the upper face of the main body has multiple assembling sections arranged along the long side, the locating section of the blade having a connection section connected to the assembling section. 
     
     
         6 . The swing fan structure as claimed in  claim 5 , wherein the assembling section is an insertion hole or a threaded hole and the connection section is an insertion pin or a screw, the connection section being connected to the assembling section by means of insertion or screwing. 
     
     
         7 . The swing fan structure as claimed in  claim 6 , wherein multiple blades are further disposed under the lower face of the main body, the blades being side by side disposed under the lower face of the main body in parallel to each other. 
     
     
         8 . The swing fan structure as claimed in  claim 2 , wherein the blade further has a second end extending from the locating section along the short side of the main body in a direction reverse to the first end. 
     
     
         9 . The swing fan structure as claimed in  claim 8 , wherein the first and second ends of the blade are made of flexible material. 
     
     
         10 . The swing fan structure as claimed in  claim 3 , further comprising a power member connected to the main body for driving the main body, whereby the blades can be driven by the main body to reciprocally move along the long side. 
     
     
         11 . The swing fan structure as claimed in  claim 10 , wherein the power member has a cam and a connection member connected to the cam, multiple slide rails being disposed on inner sides of the sidewalls of the case corresponding to four corners of the main body, the four corners of the main body being slidably disposed on the slide rails, whereby the main body can be driven to reciprocally move within the receiving space.