| 摘要 |
A heat sink ( 10 ) includes a plurality of fins ( 12 ). Each of the fins includes a main body ( 122 ) and at least one bulge ( 126 ) disposed on the main body. The main bodies of two adjacent fins cooperatively define an air passage ( 121 ) therebetween, for allowing an airflow to pass therethough. The bulge has a varying projection height so as to form a streamline guide surface ( 127 ) thereon.
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