Heat-power conversion magnetism devices

Abstract

The invention discloses a heat-power conversion magnetism device. The heat-power conversion magnetism device includes a magneto caloric effect material so that the magnetic filed thereof can be changed according to the temperature difference. The heat-power conversion magnetism device rotates by changing the magnetic filed of magneto caloric effect material. The magnetic field is enhanced with rotating permanent magnet.

What is claimed is: 
     
         1 . A heat-power conversion magnetism device comprising:
 a sleeve;   a magnet disposed at a center area of the sleeve and having at least one pair of magnetic poles;   a plurality of magneto caloric effect material units disposed between the sleeve and the magnet; and   a plurality of rotating magnets disposed in the sleeve.   
     
     
         2 . The heat-power conversion magnetism device as recited in  claim 1 , wherein the magneto caloric effect material units are disposed on an inner surface of the sleeve. 
     
     
         3 . The heat-power conversion magnetism device as recited in  claim 1 , wherein the magneto caloric effect material units are disposed on an outer surface of the magnet. 
     
     
         4 . A heat-power conversion magnetism device comprising:
 a sleeve;   a plurality of rotating magnets disposed at an inner surface of the sleeve; and   a plurality of magneto caloric effect material units disposed in the sleeve, wherein the rotating magnets and the magneto caloric effect material units are alternately disposed.   
     
     
         5 . A heat-power conversion magnetism device comprising:
 a sleeve;   a core disposed at a center area of the sleeve;   a plurality of rotating magnets disposed on an outer face of the core; and   a plurality of magneto caloric effect material units disposed between the sleeve and the magnet.   
     
     
         6 . The heat-power conversion magnetism device as recited in  claim 5 , wherein the plurality of magneto caloric effect material units are disposed on an inner face of the sleeve. 
     
     
         7 . The heat-power conversion magnetism device as recited in  claim 6  further comprising a plurality of magnets disposed on the inner face. 
     
     
         8 . The heat-power conversion magnetism device as recited in  claim 6 , wherein the magneto caloric effect material units and the magnets are alternately disposed.