Magnetic assembly system and method

Abstract

A magnetic assembly having a magnetic field mechanism is proposed. The magnetic assembly includes a central limb and a top and bottom yoke. At least a first coil is disposed on a first side of one of the top and bottom yoke and at least a second coil is disposed on a second side. The magnetic assembly further includes a first magnetocaloric unit disposed on the first side between the top and bottom yoke and a second magnetocaloric unit disposed on the second side wherein the first magnetocaloric unit and the second magnetocaloric unit are alternately magnetized and demagnetized to generate thermal units.

1 . A magnetic assembly comprising:
 a magnetic field mechanism comprising a central limb and a top and bottom yoke;   at least a first coil disposed on a first side of one of the top and bottom yoke;   at least a second coil disposed on a second side;   a first magnetocaloric unit disposed on the first side between the top and bottom yoke; and   a second magnetocaloric unit disposed on the second side wherein the first magnetocaloric unit and the second magnetocaloric unit are alternately magnetized and demagnetized to generate thermal units.   
     
     
         2 . The magnetic assembly of  claim 1 , wherein the first coil and the second coil is energized by an excitation current. 
     
     
         3 . The magnetic assembly of  claim 2 , wherein the energized coils produce a magnetic flux. 
     
     
         4 . The magnetic assembly of  claim 3 , wherein the magnetic flux passes through the first magnetocaloric unit and the second magnetocaloric unit. 
     
     
         5 . The magnetic assembly of  claim 4 , wherein the first magnetocaloric unit and the second magnetocaloric unit are configured for a heating cycle or a cooling cycle. 
     
     
         6 . The magnetic assembly of  claim 1  further comprising a permanent magnet on the central limb. 
     
     
         7 . The magnetic assembly of  claim 1 , wherein the first magnetocaloric unit is configured for a heating or a cooling cycle. 
     
     
         8 . The magnetic assembly of  claim 1 , wherein the second magnetocaloric unit is configured for a heating or a cooling cycle. 
     
     
         9 . The magnetic assembly of  claim 1 , wherein the generated thermal units effects a heat transfer. 
     
     
         10 . The magnetic assembly of  claim 9 , wherein a refrigeration cycle is provided via the generated thermal units. 
     
     
         11 . A magnetic assembly comprising:
 a magnetic field mechanism comprising a central limb and a top and bottom yoke, wherein the central limb comprises a permanent magnet;   at least a first coil disposed on a first side of one of the top and bottom yoke;   a second coil disposed on an opposite side relative to the first coil;   a first magnetocaloric unit disposed on the first side between the top and bottom yoke; and   a second magnetocaloric unit disposed on the opposite side relative the first magnetocaloric unit wherein the first magnetocaloric unit and the second magnetocaloric unit are alternately magnetized and demagnetized to generate thermal units.   
     
     
         12 . A magnetic assembly comprising:
 a cylindrical magnetic field mechanism having a core defining a hollow inner surface and at least one coil disposed within the hollow inner surface;   at least one magnetocaloric unit disposed in the hollow inner surface, wherein the magnetocaloric unit are alternately magnetized and demagnetized to generate thermal units.   
     
     
         13 . The magnetic assembly of  claim 12 , wherein the coil is energized by a current. 
     
     
         14 . The magnetic assembly of  claim 13 , wherein current carrying coil produces magnetic field. 
     
     
         15 . The magnetic assembly of  claim 14 , wherein the magnetic field magnetize the at least one magnetocaloric unit. 
     
     
         16 . The magnetic assembly of  claim 12 , wherein the generated thermal units effects a heat transfer. 
     
     
         17 . A magnetic cooling system comprising:
 a cylindrical magnetic field mechanism having a core defining a hollow inner surface and at least a coil disposed in the hollow inner surface, wherein the coil produce magnetic field upon excitation;   at least one magnetocaloric unit disposed in the hollow inner surface, wherein the magnetocaloric unit are alternately magnetized and demagnetized to generate thermal units;   a heat exchange fluid coupled to the magnetocaloric unit to exchange heat.   
     
     
         18 . A magnetic cooling system comprising:
 a magnetic field system comprising:
 a magnetic field mechanism comprising a central limb and a top and bottom yoke; 
 at least a first coil disposed on a first side of one of the top and bottom yoke; 
 a second coil disposed on an opposite side relative to the first coil; 
 a first magnetocaloric unit disposed on the first side between the top and bottom yoke; 
 a second magnetocaloric unit disposed on the opposite side relative the first magnetocaloric unit wherein the first magnetocaloric unit and the second magnetocaloric unit are alternately magnetized and demagnetized to generate thermal units; 
   a heat exchange fluid configured to exchange heat from the generated thermal units;   a pump to circulate the heat exchange fluid;   a thermal sink to remove heat from the heat exchange fluid; and   a thermal source configured to refrigerate via the heat exchange fluid.   
     
     
         19 . A method to generate magnetic field in a magnet assembly, the method comprising:
 creating an alternating magnetic field by energizing and de-energizing a coil;   orienting the alternating magnetic field via a magnetic field mechanism through a magnetocaloric material;   generating thermal units via the alternating magnetic field; and   exchanging the generated thermal units via a heat transfer fluid coupled to the magnetocaloric material and a thermal source and a thermal sink.