Rotation type regenerator and magnetic refrigerator using the regenerator

Abstract

The present invention relates to a regenerator using a rotation type magnet member and an active magnetic regenerator, and a magnetic refrigerator using the same.

1 . A rotational regenerator, comprising:
 a first AMR and a second AMR including a magnetocaloric material for passing through a flow of a heat transfer fluid;   a magnet; and   a magnet rotating assembly for applying or erasing a magnetic field to the magnetocaloric material by disposing the magnet at the first AMR or the second AMR, wherein each of the first AMR and the second AMR comprises an AMR bed disposed in a lengthwise direction of a through-hole being filled up with the magnetocaloric material, and cold-side and hot-side AMR nozzles coupled to the AMR bed and connected to the through-hole, and wherein at least one of the AMR nozzles includes a distribution chamber for uniformly distributing the heat transfer fluid to an entirety of a cross-section of the through-hole.   
   
   
       2 . The rotational regenerator in accordance with  claim 1 , wherein the magnet rotating assembly comprises a body for supporting the magnet disposed upper and lower sides of the first AMR or the second AMR, a rotating plate for supporting the body, and a rotational power transfer member for transferring a rotational power to the rotating plate, and wherein each of the first AMR and the second AMR is supported in a horizontal direction perpendicular to a vertical tower. 
   
   
       3 . The rotational regenerator in accordance with  claim 2 , wherein the distribution chamber is connected to a first end of the AMR nozzle, and an inlet/outlet is formed at a second end thereof, and wherein the inlet/outlet of the AMR nozzle is right-angled such that the inlet/outlet is on a same plane with the first AMR and the second AMR. 
   
   
       4 . The rotational regenerator in accordance with  claim 1 , wherein the first AMR and the second AMR include plastic, respectively. 
   
   
       5 . The rotational regenerator in accordance with  claim 4 , wherein the through-hole comprises an upper through-hole and a lower through-hole divided by a ribbed compartment. 
   
   
       6 . The rotational regenerator in accordance with  claim 5 , wherein a mesh and a packing are disposed between the AMR bed and the AMR nozzle. 
   
   
       7 . A magnetic refrigerator, comprising:
 a first AMR and a second AMR including a magnetocaloric material for passing through a flow of a heat transfer fluid;   a magnet;   a magnetic rotating assembly for applying or erasing a magnetic field to the magnetocaloric material by disposing the magnet at the first AMR or the second AMR; and   cold-side and hot-side heat exchangers thermally connected to the first AMR and the second AMR,   
     wherein each of the first AMR and the second AMR comprises an AMR bed disposed in a lengthwise direction of a through-hole being filled up with the magnetocaloric material, and cold-side and hot-side AMR nozzles coupled to the AMR bed and connected to the through-hole, and wherein one of the AMR nozzles includes a distribution chamber for uniformly distributing the heat transfer fluid to an entirety of a cross-section of the through-hole. 
   
   
       8 . The magnetic refrigerator in accordance with  claim 7 , wherein the magnet rotating assembly comprises a body for supporting the magnet disposed upper and lower sides of the first AMR or the second AMR, a rotating plate for supporting the body, and a rotational power transfer member for transferring a rotational power to the rotating plate, and wherein each of the first AMR and the second AMR is supported in a horizontal direction perpendicular to a vertical tower. 
   
   
       9 . The magnetic refrigerator in accordance with  claim 8 , wherein the distribution chamber is connected to a first end of the AMR nozzle, and an inlet/outlet is formed at a second end thereof, and wherein the inlet/outlet of the AMR nozzle is right-angled such that the inlet/outlet is on a same plane with the first AMR and the second AMR. 
   
   
       10 . The magnetic refrigerator in accordance with  claim 7 , wherein the first AMR and the second AMR include plastic, respectively, and wherein a mesh and a packing are disposed between the AMR bed and the AMR nozzle. 
   
   
       11 . The magnetic refrigerator in accordance with  claim 10 , wherein the through-hole comprises an upper through-hole and a lower through-hole divided by a ribbed compartment.