Frame Structure Of A Cooling Fan, The Cooling Fan And Heat Generating Device Having The Fan

Abstract

A cooling fan, frame structure of the cooling fan, and a heat generating device comprising the fan are provided. The frame structure comprises a body with an air inlet and outlet. The body has at least one set of assembling holes which are spaced a certain distance apart from each other either along the inner peripheral of the outlet or along the two outer opposite edges. The frame structure further comprises at least one active anti-dust baffle with two pins that are disposed in the assembling holes. The active anti-dust baffle is adapted to automatically rotate into a closed position when the cooling fan shuts down to effectively prevent the undesired outside objects from getting into the heat generating device.

1 . A frame structure for use in a cooling fan, comprising:
 a body, including an air inlet and an air outlet,   wherein the frame structure further comprises at least one active anti-dust baffle, adapted to rotate to a closed position in order to at least partially cover the air outlet when the cooling fan is shut down.   
   
   
       2 . The frame structure of  claim 1 , wherein the at least one active anti-dust baffle electrically connects to the cooling fan, and the at least one active anti-dust baffle is adapted to automatically rotate to the closed position when the cooling fan shuts down. 
   
   
       3 . The frame structure of  claim 1 , wherein the at least one active anti-dust baffle is adapted to be operated manually to the closed position when the cooling fan shuts down. 
   
   
       4 . The frame structure of  claim 1 , wherein the at least one active anti-dust baffle is adapted to be operated by its weight, thereby the at least one active anti-dust baffle is adapted to automatically move to the closed position. 
   
   
       5 . The frame structure of  claim 4 , wherein the at least one active anti-dust baffle is adapted to be operated by its weight to perform a rotating motion. 
   
   
       6 . The frame structure of  claim 5 , wherein the body comprises at least one set of assembling holes, disposed along a peripheral of the air outlet, the at least one active anti-dust baffle comprises two pin axes, disposed on an upper end of two sides thereof, the at least one active anti-dust baffle is individually fastened to the at least one set of assembling holes so that each the at least one active anti-dust baffle can rotate about the pin axes in front of the air outlet. 
   
   
       7 . The frame structure of  claim 6 , wherein the peripheral is an inner peripheral of the air outlet. 
   
   
       8 . The frame structure of  claim 6 , wherein the peripheral is an outer peripheral of the air outlet. 
   
   
       9 . The frame structure of  claim 1 , wherein the at least one active anti-dust baffle has two edges which are configured to conform to an inner peripheral of the air outlet. 
   
   
       10 . The frame structure of  claim 1 , wherein the at least one active anti-dust baffle is made of light and rigid materials. 
   
   
       11 . The frame structure of  claim 1 , further comprising a plurality of active anti-dust baffles, adapted to rotate to a closed position in order to substantially completely cover the air outlet when the cooling fan shuts down. 
   
   
       12 . The frame structure of  claim 11 , wherein the plurality of active anti-dust baffles are arranged subsequently and each baffle has two edges which is configured to conform to an inner peripheral of the air outlet at a position it is located when the active anti-dust baffles are in the closed position. 
   
   
       13 . A cooling fan used in a heat generating device, comprising a frame structure as claimed in  claim 1 . 
   
   
       14 . A heat generating device, comprising a cooling fan which includes a frame structure as claimed in  claim 1 . 
   
   
       15 . The heat generating device of  claim 14 , further comprising a housing, including a sidewall, wherein the cooling fan is disposed in the housing and is adjacent to the sidewall, and the at least one active anti-dust baffle is disposed on the housing.