Fan motor structure

Abstract

A fan motor structure includes a fan frame, a rotor, at least one magnetic element, and a stator. The fan frame includes a frame body and a frame cover that are closed to each other to define a receiving space between them; and a shaft seat mounted on a bottom of the frame body to locate in the receiving space. The rotor includes a hub rotatably connected to the shaft seat, and a plurality of blades outward extended from an outer surface of the hub. The magnetic element is connected to each of the blades in a continuous manner or in a discontinuous manner. The stator is arranged in the receiving space between a bottom of the frame body and the blades. With the fan motor structure, a fan can have increased air intake, produce more air flows and be assembled with reduced time and labor.

What is claimed is: 
     
         1 . A fan motor structure, comprising:
 a fan frame internally defining a receiving space and having a shaft seat located at a center of the receiving space;   a rotor being rotatably connected to the shaft seat, and including a hub and a plurality of blades outward extended from and spaced along an outer surface of the hub;   at least one magnetic element being arranged on the blades; and   a stator being arranged in the receiving space between a bottom of the fan frame and the blades at a position corresponding to the magnetic element.   
     
     
         2 . The fan motor structure as claimed in  claim 1 , wherein the fan frame includes a frame cover and a frame body, which are closed to each other to together define the receiving space in between them; the frame cover having a first air inlet communicating with the receiving space; and the frame body being provided at a lateral side with an air outlet communicating with the first air inlet and the receiving space. 
     
     
         3 . The fan motor structure as claimed in  claim 2 , wherein the frame body is provided on a bottom facing the frame cover with a second air inlet, which communicates with the receiving space, the air outlet, and the first air inlet. 
     
     
         4 . The fan motor structure as claimed in  claim 2 , wherein the stator includes a plurality of windings and a circuit board; the circuit board being located on a bottom of the frame body, and the windings being wound on the circuit board to electrically connect to the circuit board. 
     
     
         5 . The fan motor structure as claimed in  claim 3 , wherein the stator includes a plurality of windings and a circuit board; the circuit board being located on the bottom of the frame body, and the windings being wound on the circuit board to electrically connect to the circuit board. 
     
     
         6 . The fan motor structure as claimed in  claim 4 , wherein each of the blades includes a fixed end and a free end outward extended from the fixed end; the fixed end being fixedly connected to the outer surface of the hub; and the magnetic element being a continuous annular member connected to the free ends of the blades in a continuous manner to axially correspond to the windings, so that the windings can be excited via magnetic induction. 
     
     
         7 . The fan motor structure as claimed in  claim 4 , wherein each of the blades includes a fixed end and a free end outward extended from the fixed end; the fixed end being fixedly connected to the outer surface of the hub; and the magnetic element being separately provided on each of the free ends of the blades in a discontinuous manner to axially correspond to the windings, so that the windings can be excited via magnetic induction. 
     
     
         8 . The fan motor structure as claimed in  claim 4 , wherein each of the blades includes a fixed end and a free end outward extended from the fixed end; the fixed end being fixedly connected to the outer surface of the hub; and the magnetic element being a continuous annular member connected to the blades between the free ends and the fixed ends thereof in a continuous manner to axially correspond to the windings, so that the windings can be excited via magnetic induction. 
     
     
         9 . The fan motor structure as claimed in  claim 4 , wherein each of the blades includes a fixed end and a free end outward extended from the fixed end; the fixed end being fixedly connected to the outer surface of the hub; and the magnetic element being separately provided on each of the blades between the free end and the fixed end thereof in a discontinuous manner to axially correspond to the windings, so that the windings can be excited via magnetic induction. 
     
     
         10 . The fan motor structure as claimed in  claim 1 , wherein the magnetic element is selected from the group consisting of a magnet and a type of magnetic powder. 
     
     
         11 . The fan motor structure as claimed in  claim 1 , wherein the magnetic element is integrally formed with the blades by way of injection molding. 
     
     
         12 . The fan motor structure as claimed in  claim 6 , wherein the magnetic element is connected to the free ends of the blades in a manner selected from the group consisting of bonding, adhering, inserting, snapping and clamping. 
     
     
         13 . The fan motor structure as claimed in  claim 8 , wherein the magnetic element is connected to the blades between the free ends and the fixed ends thereof in a manner selected from the group consisting of bonding, adhering, inserting, snapping and clamping. 
     
     
         14 . The fan motor structure as claimed in  claim 1 , wherein the magnetic element and the blades are integrally formed by way of injection molding to provide a plurality of magnetic blades.