Patent ID: 7326861

Claim:
A shielding cover having cooling fins comprising: housing means for supporting a driving means; covering means for tightly sealing the driving means in the housing means; noise insulating means, provided to the covering means at a portion near a noise source of the driving means, for insulating noise generated from the noise source; and cooling means for cooling the driving means, the cooling means including plural flat plate shape fins arranged in parallel on the surface of the covering means, wherein the noise insulating means is formed by making the covering means thick, and the fins of the cooling means are formed by making the surface area of the portion of the driving means away from the noise source wider than the portion near the noise insulating means, and wherein an air current flow path at air current take-in ends and air current exhausting ends of the plural cooling fins is formed wider than the air current flow path near the noise source such that the cooling fins have a greater width in a direction above the surface of the covering means at the air current take-in ends and air current exhausting ends than near the noise source.