Heating-pressurizing zig for manufacturing 5-layer MEA

Abstract

The present invention provides a heating-pressurizing jig for manufacturing a 5-layer membrane electrode assembly (MEA), in which: metal plates are formed integrally with heating plates to obviate the difficulty in increasing the temperature of the metal plates to a normal state every time when manufacturing a plurality of 5-layer MEAs; an MEA is mounted to external guides while being spaced apart from lower guides at predetermined intervals to prevent the MEA from being dried, contracted and deformed by the heated metal plates; and the lower guides and upper plate supports are elastically supported by springs, respectively, so that the external guides can respond in real time to the change in the thickness caused when upper and lower gas diffusion layers are compressed, thus preventing the MEA from being bent.

1 . A heating-pressurizing jig for manufacturing a 5-layer membrane electrode assembly, the jig comprising:
 a lower metal plate installed on the top surface of a lower heating plate, on which a lower gas diffusion layer is stacked;   a lower guide installed on both sides of the lower metal plate to guide the lower gas diffusion layer to a predetermined position accurately;   a guide spring installed below the lower guide to elastically support the lower guide;   an external guide mounted on the top of the lower guide to fix a membrane electrode assembly and an upper gas diffusion layer;   an upper metal plate mounted on the bottom surface of an upper heating plate, which pressurizes the upper gas diffusion layer when a press is moved down; and   an upper plate support installed on both sides of the upper metal plate, which comes in contact with the external guide when the press is moved down.   
     
     
         2 . The heating-pressurizing jig for manufacturing a 5-layer membrane electrode assembly of  claim 1 , wherein the upper plate support is elastically supported by an upper plate spring. 
     
     
         3 . The heating-pressurizing jig for manufacturing a 5-layer membrane electrode assembly of  claim 1 , wherein an insulating material is disposed between the guide spring and the lower heating plate. 
     
     
         4 . The heating-pressurizing jig for manufacturing a 5-layer membrane electrode assembly of  claim 1 , wherein a projection is formed on the bottom of the external guide and an insertion groove corresponding to the projection is formed on the top of the lower guide.