Pump

Abstract

A housing of a pump includes a fluid inlet and a fluid outlet. A rotor of the pump is disposed in the housing and includes a rotating portion, a magnet, and a bearing. The magnet is disposed on one side of the rotating portion. The bearing is disposed in the center of the rotating portion. A stator is disposed in the housing and corresponds to the magnet of the rotor, providing electromagnetic force required for rotation of the rotor. The rotating portion, magnet, and bearing are integrally formed as single unit by injection molding.

1 . A pump, comprising: 
 a housing having an inlet and an outlet;    a rotor disposed in the housing and comprising a rotating portion, a magnet, and a bearing, wherein the magnet is disposed on one side of the rotating portion, and the bearing is disposed in the center of the rotating portion;    and    a stator disposed in the housing and corresponding to the magnet of the rotor for providing electromagnetic force required for rotation of the rotor;    wherein the rotating portion, magnet, and bearing are integrally formed as a single unit.    
   
   
       2 . The pump as claimed in  claim 1 , wherein the rotor is integrally formed by plastic injection molding.  
   
   
       3 . The pump as claimed in  claim 1 , wherein the magnet is disposed in the interior of the rotating portion.  
   
   
       4 . The pump as claimed in  claim 3 , wherein the stator is disposed in the interior of the rotor.  
   
   
       5 . The pump as claimed in  claim 1 , wherein the magnet is disposed in the exterior of the rotating portion.  
   
   
       6 . The pump as claimed in  claim 5 , wherein the stator is disposed in the exterior of the rotor.  
   
   
       7 . The pump as claimed in  claim 1 , further comprising a shaft axially penetrating the rotor.  
   
   
       8 . The pump as claimed in  claim 7 , wherein the housing further comprises a top cover and a frame body, and an accommodation chamber is formed between the top cover and the frame body for accommodating the rotor.  
   
   
       9 . The pump as claimed in  claim 8 , wherein the housing further comprises a bottom cover, and a sealed chamber is formed between the bottom cover and the frame body for accommodating the stator.  
   
   
       10 . The pump as claimed in  claim 1 , wherein the stator comprises a plurality of stacked silicon steel sheets and a coil.  
   
   
       11 . The pump as claimed in  claim 1 , wherein the pump is a centrifugal pump.  
   
   
       12 . The pump as claimed in  claim 1 , wherein the rotor further comprises a plurality of blades on a top surface thereof.