Combined axle structure of a stator assembly for a radiator fan

Abstract

A combined axle structure of a stator assembly for a radiator fan, of which said radiator fan comprises: a pedestal, a stator assembly, a rotor blade unit and a reverse axle. The pedestal includes a sustaining face and a stator assembly face. The stator assembly includes silicon-steel sheet, coil and insulated frame. The insulated frame is mated with a metal bearing block, which is designed like a cup, and includes a bottom wall and a circumferential wall. The top of the circumferential wall is positioned into the insulated frame. An axle socket is set at the center of the bottom wall, allowing for insertion of the bottom of the reverse axle. An embedded locator is set centrally into the stator assembly face of the pedestal, allowing for mating with the bottom of the metal bearing block.

1 . A combined axle structure of a stator assembly for a radiator fan, of which the radiator fan comprises: a pedestal, a stator assembly, a rotor blade unit and a reverse axle; the pedestal includes a sustaining face and a stator assembly face; a circuit board is set on the stator assembly face; the stator assembly includes silicon-steel sheet, coil and insulated frame; among which, the insulated frame is mated with a metal bearing block, which is formed like a cup, and includes a bottom wall and a circumferential wall; of which the top of the circumferential wall is positioned into the insulated frame; an axle socket is set at the center of the bottom wall, allowing for insertion of the bottom of the reverse axle; an embedded locator is set centrally into the stator assembly face of the pedestal, allowing for mating with the bottom of the metal bearing block. 
     
     
         2 . The structure defined in  claim 1 , wherein the embedded locator for the pedestal is a through-hole or a grooved pattern; when the embedded locator is a through-hole, an annular flange is protruded on the bottom of the metal bearing block, such that an expanded ring slot is set correspondingly at the bottom of the through-hole embedded locator, allowing for abutting and embedding of the annular flange. 
     
     
         3 . The structure defined in  claim 2 , wherein the annular flange at bottom of the metal bearing block and the embedded locator can be fixed by adhesive. 
     
     
         4 . The structure defined in  claim 1 , wherein the peripheral surface at bottom of the metal bearing block can be a rough surface correspondingly to the embedded locator. 
     
     
         5 . The structure defined in  claim 1 , wherein a ring groove or spacing groove is set at bottom of the metal bearing block, such that the pedestal made of plastics can be firmly mated with the ring groove or spacing groove at bottom of the metal bearing block by means of injection coating. 
     
     
         6 . The structure defined in  claim 1 , wherein a locating column is formed onto the insulated frame of the stator assembly and protruded towards the pedestal, such that a through-hole is set correspondingly to the pedestal for penetration of the locating column; and a hot-melt expanded end is formed onto the locating column for abutting onto the sustaining face of the pedestal.