Fan frame seat and fan thereof

Abstract

A fan frame seat and a fan thereof. The fan frame seat includes a main body having a first open face and a second open face. A base seat is disposed on the second open face. At least one recess is formed on the second open face and positioned in the base seat. The fan includes the fan frame seat, a stator assembly and a rotor assembly. The stator assembly is fitted around the bearing cup. The rotor assembly is inserted in the bearing cup corresponding to the stator assembly. The above structure is able to resist against impact and restrain vibration.

What is claimed is: 
     
         1 . A fan frame seat comprising:
 a main body having a first open face and a second open face, a base seat being disposed on the second open face; and   at least one recess formed on the second open face and positioned in the base seat.   
     
     
         2 . The fan frame seat as claimed in  claim 1 , wherein a bearing cup is disposed on the base seat, the bearing cup having a first end and a second end, the first end extending toward the first open face, the second end being connected with the base seat. 
     
     
         3 . The fan frame seat as claimed in  claim 1 , wherein the first open face is positioned on a first reference face and the second open face is positioned on a second reference face, the base seat being positioned between the first reference face and the second reference face. 
     
     
         4 . The fan frame seat as claimed in  claim 1 , wherein the configuration of the recess is selected from a group consisting of triangular configuration, semicircular configuration, flat circular configuration, double-elliptic configuration and trapezoidal configuration. 
     
     
         5 . A fan comprising:
 a frame seat including:   a main body having a first open face and a second open face, a base seat being disposed on the second open face, a bearing cup being disposed on the base seat; and   at least one recess formed on the second open face and positioned in the base seat;   a stator assembly fitted around the bearing cup; and   a rotor assembly inserted in the bearing cup corresponding to the stator assembly.   
     
     
         6 . The fan as claimed in  claim 5 , wherein the bearing cup has a first end and a second end, the first end extending toward the first open face, the second end being connected with the base seat. 
     
     
         7 . The fan as claimed in  claim 5 , wherein the first open face is positioned on a first reference face and the second open face is positioned on a second reference face, the base seat being positioned between the first reference face and the second reference face. 
     
     
         8 . The fan as claimed in  claim 5 , wherein the configuration of the recess is selected from a group consisting of triangular configuration, semicircular configuration, flat circular configuration, double-elliptic configuration and trapezoidal configuration. 
     
     
         9 . The fan as claimed in  claim 5 , wherein at least one bearing is disposed in the bearing cup. 
     
     
         10 . The fan as claimed in  claim 9 , wherein the rotor assembly includes a central shaft, the central shaft being inserted in the bearing cup through the bearing.