| 摘要 |
A heat sink assembly includes a heat sink (10), a plurality of standoffs (20), and a plurality of springs (40). The heat sink includes a base (12) defining a plurality of through apertures (16). Each standoff includes a head (24), and a body (22) extending through a corresponding through aperture. The springs are placed over the corresponding bodies and located between the heads and the base. The body has a hollow part (26) for fixedly receiving a bolt (45). The hollow part includes an expandable portion (28) at a bottom end thereof, a smooth guiding portion (31) above the expandable portion, and a threaded portion (33) above the guiding portion. The guiding portion guides the bolt in the standoff to facilitate the bolt engaging in the threaded portion. The expandable portions are expanded to thereby combine the heat sink, standoffs and springs as a single unit.
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