Riveting apparatus for thin heat sink fin and thin cover plate

Abstract

A riveting structure for a thin heat sink fin and a thin cover plate is disclosed. The riveting structure includes a plurality of thin heat sink fins and a thin cover plate. The top of each thin heat sink fin is provided with a raised portion, the thin cover plate is formed with a plurality of riveting holes, and the raised portion is riveted and fixed to a corresponding one of the riveting holes in a rolling manner by a rolling device, instead of the traditional manual welding method. This improves the assembly efficiency greatly, reduces the labor cost, and reduces the product defect rate effectively.

What is claimed is: 
     
         1 . A riveting structure for a thin heat sink fin and a thin cover plate, comprising a plurality of thin heat sink fins and a thin cover plate; the plurality of thin heat sink fins being vertically disposed, the thin cover plate being disposed on top of the thin heat sink fins; each of the thin heat sink fins having a raised portion extending from a top thereof; the thin cover plate being formed with a plurality of riveting holes, the raised portion of each thin heat sink fin passing through a corresponding one of the riveting holes to extend upward, the raised portion of each thin heat sink fin being riveted and fixed to the corresponding riveting hole in a rolling manner by a rolling device. 
     
     
         2 . The riveting structure as claimed in  claim 1 , wherein the top of each thin heat sink fin is provided with a plurality of evenly spaced raised portions. 
     
     
         3 . The riveting structure as claimed in  claim 1 , wherein the raised portion has a flat top surface. 
     
     
         4 . The riveting structure as claimed in  claim 1 , wherein the raised portion has a toothed top surface. 
     
     
         5 . The riveting structure as claimed in  claim 1 , wherein the raised portion has a curved concave top surface. 
     
     
         6 . The riveting structure as claimed in  claim 1 , wherein the riveting holes each have a square shape.