Patent ID: 7990714

Claim:
A heat dissipation device comprising: a heat sink; a heat absorbing plate; a heat pipe with one end thereof connected to the heat sink and another end thereof attached to the heat absorbing plate; a pressing plate secured to the heat absorbing plate and pressing the another end of the heat pipe to the heat absorbing plate; and a plurality of fasteners extending through the pressing plate for securing the another end of the heat pipe, the heat absorbing plate and the pressing plate to a printed circuit board; wherein each of the fasteners comprises a connecting portion extending through the pressing plate, a first operating portion extending from the connecting portion and abutting against the pressing plate, and a second operating portion formed at an end face of the first operating portion, the first and second operating portions configured to be operated by different tools, wherein a plurality of holes are defined in the pressing plate for the connecting portions of the fasteners to extend therethrough, and a slot is defined in an outer surface of each of the connecting portions, the pressing plate forming a plurality of teeth in each of the holes, the teeth engaging in the slot to block the pressing plate from separating from the fasteners, and wherein a recess is defined in the end face of the first operating portion, and the second operating portion is defined in the recess.