Heat transfer member

Abstract

There is provided a heat transfer member which is made of an aluminum alloy including silicon (Si), iron (Fe), and magnesium (Mg). The aluminum alloy further includes at least one or two or more of copper (Cu), manganese (Mn), zinc (Zn), titanium (Ti), calcium (Ca), tin (Sn), phosphorus (P), chromium (Cr), zirconium (Zr), nickel (Ni), strontium (Sr), and vanadium (V).

What is claimed is: 
     
         1 . A heat transfer member made of an aluminum alloy comprising, based on a total amount of the alloy:
 8.0 to 9.0 wt % of silicon (Si);   0.35 to 0.55 wt % of iron (Fe);   0.02 to 0.3 wt % of magnesium (Mg); and   a balance of aluminum.   
     
     
         2 . The heat transfer member of  claim 1 , wherein the alloy includes at least one or two or more of:
 0.001 to 0.2 wt % of copper (Cu);   0.001 to 0.2 wt % of manganese (Mn);   0.001 to 0.2 wt % of zinc (Zn);   0.001 to 0.2 wt % of titanium (Ti);   0.001 to 0.2 wt % of calcium (Ca);   0.001 to 0.2 wt % of tin (Sn);   0.001 to 0.2 wt % of phosphorus (P);   0.001 to 0.2 wt % of chromium (Cr);   0.001 to 0.2 wt % of zirconium (Zr);   0.001 to 0.2 wt % of nickel (Ni);   0.001 to 0.1 wt % of strontium (Sr); and   0.001 to 0.01% wt % of vanadium (V).   
     
     
         3 . The heat transfer member of  claim 1 , wherein the alloy has an electrical conductivity of 30 to 40% IACS and a thermal conductivity of 145 to 165 W/mK at a temperature of 25 to 200° C. 
     
     
         4 . The heat transfer member of  claim 1 , wherein the iron (Fe) is precipitated as iron aluminide (Al3Fe). 
     
     
         5 . The heat transfer member of  claim 2 , wherein the iron (Fe) is precipitated as iron aluminide (Al3Fe). 
     
     
         6 . The heat transfer member of  claim 1 ,
 wherein the silicon (Si) is combined with the magnesium (Mg) and precipitated as magnesium silicide (Mg2Si), and   wherein a remaining amount of the 8.0 to 9.0 wt % of the silicon (Si) is precipitated alone.   
     
     
         7 . The heat transfer member of  claim 2 ,
 wherein the silicon (Si) is combined with the magnesium (Mg) and precipitated as magnesium silicide (Mg2Si), and   wherein a remaining amount of the 8.0 to 9.0 wt % of the silicon (Si) is precipitated alone.   
     
     
         8 . The heat transfer member of  claim 1 , comprising:
 a base plate;   at least one or more fins; and   a connection portion connecting the base plate and the fin.   
     
     
         9 . The heat transfer member of  claim 8 , wherein the connection portion has a curvature radius of 3 mm. 
     
     
         10 . The heat transfer member of  claim 8 , wherein the cooling fin is a straight fin, a pin fin, a wave fin, or a conical fin. 
     
     
         11 . The heat transfer member of  claim 10 , wherein the cooling fin has a hollow shape.