| 摘要 |
An air-guiding structure for a heat-dissipating fin is manufactured by providing plural sets of air-guiding portions on each heat-dissipating fin. Each air-guiding-portion includes a plurality of thorns made by stamping. The thorns are arranged non-linearly and oriented to face the inlet or the outlet for external cooling air. With the above arrangement, when the external cooling air enters the inlet of the heat-dissipating fin and passes through the flowing path, as soon as contacting with the thorns of the air-guiding portion, the cooling air is hindered to form a three-dimensional turbulent flow on the heat-dissipating fin. As a result, the duration within which the cooling air stays in the heat-dissipating fin can be extended to efficiently carry the heat source out of the heat-dissipating fins, thereby to improve the efficiency in heat dissipation.
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