Liquid-cooled pump

Abstract

The invention relates to a liquid-cooled pump, including a top cover, a hub, a base, a driving element and a bottom cover. The base is divided into a top space and a bottom space therein by a partition seat. The hub is disposed in the top space and the driving element is disposed in the bottom space. The hub is centrally disposed a spindle therein and a permanent magnet on the inner wall thereof. A ferromagnetic material is disposed underneath the partition seat where corresponds to the ferromagnetic material. While the pressure difference is born on the hub upon rotating, an attraction force between the permanent magnet and the ferromagnetic material can limit the hub to float off so that the friction between the blades of the hub and the top cover is avoidable and the issue that the fastener rubs against bearing won't occur.

1 . A liquid-cooled pump, comprising: 
 a base having a top space and a bottom space therein separated by a partition seat;    a hub disposed in said top space;    a driving element disposed in said bottom space;    a top cover fixed on top of said base and having an inlet pipe and an outlet pipe therein; and    a bottom cover fixed underneath said base; wherein said partition seat is disposed a bearing therein, a spindle is sleeved in said bearing which is centrally positioned in said base and is rotated therein, a permanent magnet is disposed on an inner wall of said hub, and a ferromagnetic material is disposed underneath said partition seat where corresponds to said permanent magnet.    
   
   
       2 . The liquid-cooled pump of  claim 1 , wherein a downwardly-attracting magnet is disposed underneath said hub where is around said spindle and a ferromagnetic material is disposed underneath said partition seat of said base where corresponds to said downwardly-attracting magnet.  
   
   
       3 . The liquid-cooled pump of  claim 1 , wherein said ferromagnetic material is a sheetmetal.  
   
   
       4 . The liquid-cooled pump of  claim 2 , wherein said ferromagnetic material is a sheetmetal.  
   
   
       5 . The liquid-cooled pump of  claim 1 , wherein a shaft guide is disposed in said partition seat, a groove is located on a bottom side of shaft guide, said bearing is sleeved in said shaft guide, and a friction plate is inserted in said groove.  
   
   
       6 . The liquid-cooled pump of  claim 5 , wherein a plurality of axial ribs are on an inner wall of said shaft guide.  
   
   
       7 . The liquid-cooled pump of  claim 1 , wherein both ends of said spindle are in spherical shape.  
   
   
       8 . The liquid-cooled pump of  claim 5 , wherein a plurality of spiral blades protrude beyond a top surface of said hub.  
   
   
       9 . The liquid-cooled pump of  claim 1 , wherein said driving element comprises a circuit board and a stator set.  
   
   
       10 . The liquid-cooled pump of  claim 1 , wherein said inlet pipe and said outlet pipe are connected to a pipe loop to supply water or circulate cooling liquid.  
   
   
       11 . A liquid-cooled pump, comprising: 
 a base having a top space and a bottom space therein separated by a partition seat;    a hub disposed in said top space;    a driving element disposed in said bottom space;    a top cover fixed on top of said base and having an inlet pipe and an outlet pipe therein; and    a bottom cover fixed underneath said base; wherein said partition seat is disposed a bearing therein, a spindle is sleeved in said bearing which is centrally positioned in said base and is rotated therein, a downwardly-attracting magnet is disposed underneath said hub where is around said spindle, and a ferromagnetic material is disposed underneath said partition seat where corresponds to said downwardly-attracting magnet.    
   
   
       12 . The liquid-cooled pump of  claim 11 , wherein a ferromagnetic material is disposed underneath said partition base of said base where corresponds to said permanent magnet.  
   
   
       13 . The liquid-cooled pump of  claim 11 , wherein said ferromagnetic material is sheetmetal.  
   
   
       14 . The liquid-cooled pump of  claim 12 , wherein said ferromagnetic material is sheetmetal.  
   
   
       15 . The liquid-cooled pump of  claim 11 , wherein a shaft guide is disposed in said partition seat, a groove is located on a bottom side of shaft guide, said bearing is sleeved in said shaft guide, and a friction plate is inserted in said groove.  
   
   
       16 . The liquid-cooled pump of  claim 15 , wherein a plurality of axial ribs are on an inner wall on said shaft guide.  
   
   
       17 . The liquid-cooled pump of  claim 11 , wherein both ends of said spindle are in spherical shape.  
   
   
       18 . The liquid-cooled pump of  claim 11 , wherein a plurality of spiral blades protrude beyond a top surface of said hub and a permanent is disposed on an inner wall thereof.  
   
   
       19 . The liquid-cooled pump of  claim 11 , wherein said driving element comprises a circuit board and a stator set.  
   
   
       20 . The liquid-cooled pump of  claim 11 , wherein said inlet pipe and outlet pipe are connected to a pipe loop to supply water or circulate cooling liquid.