Patent ID: 7349218

Claim:
A locking device for locking a heat sink to an electronic device, the locking device comprising: a retaining frame defining a fixing hole and the retaining frame further comprising a pair of cutouts therein; a guiding member being positioned on the retaining frame, the guiding member comprising a seat sitting on the retaining frame, a sleeve extending from the seat, and a positioning portion descending from the seat and engaging with the retaining frame thereby retaining the guiding member to the retaining frame, the positioning portion further comprising two spaced legs extending from the seat, each respective cutout being at a corresponding opposite side of the fixing hole, each leg being fitted in a respective cutout; and a fastener being accommodated in the sleeve of the guiding member; wherein the guiding member keeps the fastener vertical to the retaining frame and aiming at the fixing hole of the retaining frame.