Structure of radiator for heating

Abstract

The invention concerns a radiator structure comprising several elements ( 10 ) for heating systems in households, offices and the like, where each radiator element is composed of a top and bottom head ( 11, 12 ) and of a set of parallel tubes ( 13 ) positioned and fixed between said heads, and the heads are made by injection moulding of a thermoplastic material and the tubes are extruded by co-injection of an external layer ( 13′ ) of a plastic material and an internal reinforcing fibre or glass beads layer ( 13″ ). The heads have cavities or lead-ins to insert the ends of the tubes into and to form the radiator they are welded side by side.

1 . A radiator structure comprising:
 a number of elements for heating systems in households, offices and the like, each element having a top head and a bottom head and a set of parallel tubes positioned and fixed between said top head and said bottom head, each of said top head and said bottom head being manufactured by injection molding of a plastic material and the tubes being extruded by co-injection of an external layer of plastic material and an internal reinforcing layer of fiber or glass beads.   
   
   
       2 . A radiator structure according to  claim 1 , wherein each head has a body forming a chamber and a plurality of base cavities or lead-ins, which are in communication with said chamber through respective conduits, and wherein opposite ends of said tubes are inserted into the cavities or lead-ins of the two heads and fixed to them by welding. 
   
   
       3 . A radiator structure according to  claim 2 , wherein the body of each head has an external finishing jacket to avoid being able to see the deformations caused by shrinkage of the material. 
   
   
       4 . A radiator structure according to  claim 1 , wherein said radiator elements are welded side by side and a predetermined number of radiator elements are provided. 
   
   
       5 . A radiator structure according to  claim 1 , wherein the heads of at least one end element of the assembled radiator are each provided with a projecting part, said projecting part forming a fitting to connect to feed and return pipes for water circulating in the heating system. 
   
   
       6 . A radiator structure according to  claim 1 , wherein the radiator elements can be equipped with an anti-knock protection. 
   
   
       7 . A radiator structure according to  claim 1 , wherein each head and the external layer of each tube are made of a thermoplastic material. 
   
   
       8 . A radiator structure according to  claim 1 , wherein the material is colored. 
   
   
       9 . A radiator structure according to  claim 1 , wherein the material is the iridescent color type when heated by the radiator.