Motor assembly structure

Abstract

A motor assembly structure including a first bracket and a second bracket which together form a coil unit. The first bracket has a hub integrally extending from the first bracket into the second bracket. The motor assembly structure further includes a silicon steel plate unit fitted around the hub and sandwiched between the first bracket and the second bracket. The first bracket and the hub are integrally formed as a module so that the assembling procedure of the motor assembly structure is facilitated.

1 . A motor assembly structure comprising: 
 a first bracket and a second bracket arranged side by side, the first bracket having a hub integrally extending from the first bracket to the second bracket, the hub having a connecting end connected with the first bracket, the connecting end being formed with an opening, the hub further having a close end distal from the opening, the hub being formed with a shaft cavity communicating with the opening;    a silicon steel plate unit fitted around the hub and sandwiched between the first bracket and the second bracket;    a circuit board fitted around the hub and adjacent to the second bracket;    a rotor including an annular magnet arranged around the locator of the motor, the rotor having a central shaft rotatably fitted in the shaft cavity of the hub; and    a base seat connected with the close end of the hub.    
   
   
       2 . The motor assembly structure as claimed in  claim 1 , wherein a wall of the shaft cavity is formed with an annular protrusion adjacent to the opening of the shaft cavity, an outer circumference of the central shaft being formed with an annular groove complementary to the annular protrusion, whereby the annular protrusion of the shaft cavity is snugly inlaid in the annular groove of the central shaft.  
   
   
       3 . The motor assembly structure as claimed in  claim 1 , wherein a magnet is embedded in the close end of the hub.  
   
   
       4 . The motor assembly structure as claimed in  claim 1 , wherein the rotor further includes several vanes.