Heat dissipating device

Abstract

The instant disclosure relates to a heat dissipating device capable of mounting on at least one heat conducting pipe. The heat dissipating device includes a heat dissipating fin having a main body. At least one through hole is formed on the main body. At least one set of ribs is formed on the main body and around the through hole. A slot is defined between any two adjacent ribs. The through hole of the main body is for insertion of the heat conducting pipe in allowing the ribs to grip resiliently against the heat conducting pipe. Thus, the heat dissipating device of the instant disclosure enables multiple heat dissipating fins to be stacked on the heat conducting pipe in one run. In saving assembly time, the heat dissipating fins need not be mounted on the heat conducting pipe one piece after another.

What is claimed is: 
     
         1 . A heat dissipating device, for mounting on at least one heat conducting pipe having a contacting portion abutting a heat generating unit, wherein a surface of the contacting portion in abutment with the heat generating unit is substantially a flat surface, comprising:
 a heat dissipating fin, comprising:
 a main body having at least one through hole formed thereon; 
 at least a set of ribs vertically formed on the main body and around the through hole, wherein a slot is defined between every two adjacent ribs; 
 a stacking portion defined by at least one rectangular-shaped via hole formed on the main body and a ridge vertically formed adjacent to the via hole; 
 wherein the through hole of the heat dissipating fin is for insertion of the heat conducting pipe and allow the ribs to grip resiliently therewith. 
   
     
     
         2 . The heat dissipating device according to  claim 1 , wherein multiple through holes are formed on the main body in correspondence to the equal number of heat conducting pipes, and wherein the heat conducting pipes are arranged in parallel and penetrate the through holes. 
     
     
         3 . The heat dissipating device according to  claim 1 , wherein the heat dissipating fin has a bent portion defined by a plurality of tabs arranged on the periphery of the main body. 
     
     
         4 . The heat dissipating device according to  claim 1 , wherein the heat dissipating fin has at least one engaging member, wherein the engaging member has an engaging body in defining an engaging slot, and wherein the engaging body is formed by stamping and kinking of the main body. 
     
     
         5 . The heat dissipating device according to  claim 1 , further comprising a base and a cover plate, wherein the base has a supporting portion and a fastening portion, wherein an opening is defined on the supporting portion, while the fastening portion is extended from the supporting portion, wherein the cover plate has a restricting portion for mounting to the fastening portion, and wherein the contacting portion of the heat conducting pipe is arranged between the base and the cover plate. 
     
     
         6 . The heat dissipating device according to  claim 5 , wherein the supporting portion includes at least one ramp arranged adjoining the opening and in the axial direction of the contacting portion of the heat conducting pipe. 
     
     
         7 . The heat dissipating device according to  claim 6 , wherein the heat conducting pipe abuts the ramp of the supporting portion. 
     
     
         8 . The heat dissipating device according to  claim 5 , wherein the fastening portion of the base has at least one protrusion, and the restricting portion of the cover plate is defined by at least one restricting notch, wherein the protrusion of the base is engaged to the restricting notch of the cover plate. 
     
     
         9 . The heat dissipating device according to  claim 8 , wherein the restricting notch is formed concavely on the periphery of the cover plate. 
     
     
         10 . The heat dissipating device according to  claim 5 , wherein the contacting portions of multiple heat conducting pipes are arranged in parallel in the opening of the supporting portion and abutting the sidewalls of the opening. 
     
     
         11 . A heat dissipating device, for mounting on at least one heat conducting pipe having a contacting portion abutting a heat generating unit, wherein a surface of the contacting portion in abutment with the heat generating unit is substantially a flat surface, comprising:
 a set of heat dissipating fins including a plurality of stacked heat dissipating fins, wherein each heat dissipating fin has:
 a main body having at least one through hole formed thereon; 
 at least a set of ribs vertically formed on the main body and around the through hole, wherein a slot is defined between every two adjacent ribs; 
 a stacking portion defined by at least one rectangular-shaped via hole formed on the main body and a ridge formed on the main body adjacent to the via hole; 
 wherein the heat dissipating fins are parallelly mounted on the heat conducting pipe by the respective through holes, with the ribs of the heat dissipating fins griping resiliently on the heat conducting pipe, wherein the stacking portions between adjacent heat dissipating fins abut against one another. 
   
     
     
         12 . The heat dissipating device according to  claim 11 , wherein each of the heat dissipating fins has a bent portion defined by a plurality of extensions formed on the periphery of the main body, and wherein the bent portions between adjacent heat dissipating fins abut against one another. 
     
     
         13 . The heat dissipating device according to  claim 11 , wherein each of the heat dissipating fins has at least one engaging member, wherein the engaging member has an engaging body in defining an engaging slot, and wherein the engaging body is formed by stamping and kinking of the main body. 
     
     
         14 . The heat dissipating device according to  claim 13 , wherein for the stacked heat dissipating fin, the engaging slot of each heat dissipating fin is engaged by the engaging body of the adjacent heat dissipating fin. 
     
     
         15 . The heat dissipating device according to  claim 11 , further comprising a base and a cover plate, wherein the base has a supporting portion and a fastening portion, wherein an opening is defined on the supporting portion, and the fastening portion is extended from the supporting portion, wherein the cover plate has a restricting portion for mounting to the fastening portion, and wherein the contacting portion of the heat conducting pipe is arranged between the base and cover plate. 
     
     
         16 . The heat dissipating device according to  claim 15 , wherein the supporting portion has at least one ramp arranged adjoining the opening and in the axial direction of the contacting portion of the heat conducting pipe, and wherein the heat conducting pipe abuts the ramp. 
     
     
         17 . The heat dissipating device according to  claim 15 , wherein the cover plate is fixed to the base. 
     
     
         18 . The heat dissipating device according to  claim 17 , wherein the fastening portion of the base includes at least one protrusion and the restricting portion of the cover plate is defined by at least one restricting notch for engaging the protrusion. 
     
     
         19 . The heat dissipating device according to  claim 18 , wherein the restricting notch is formed concavely on the periphery of the cover plate. 
     
     
         20 . The heat dissipating device according to  claim 15 , wherein the contacting portions of multiple heat conducting pipes are arranged in parallel in the opening and abut the sidewalls of the opening.