| 摘要 |
A heat sink includes a rib section and a plurality of radiating fins spaced on a top face of the rib section. The radiating fins are perpendicularly protruded from the top face of the rib section and orthogonally extended across the rib section with a near middle bottom portion of each of the radiating fins in contact with the top face of the rib section, such that two lateral portions of each of the spaced radiating fins are outward protected from two opposite sides of the rib section to define two comb-shaped air paths. Cold air can flow to spaces below the comb-shaped air paths, and hot air carrying the heat radiated from the radiating fins can upward flow through the comb-shaped air paths and diffused outward as a result of natural air convection around the heat sink. Therefore, the heat sink can have largely upgraded heat dissipation efficiency.
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