Heat sink assembly with spring clamp

A heat sink assembly, comprising:

• a heat sink having a base, a plurality heat dissipating pins extending upwardly from the base, and a plurality of first slots and a plurality of second slots defined between respective adjacent rows of the pins, the second slots being perpendicular to the first slots;
• a clip having a central body with a raised portion, and a pair of spring arms respectively extending perpendicularly but in different directions from two opposite ends of the body, a hook being arranged at a free end of each of the arms;
• and
• a spring clamp having an elongate central pressing portion receiving the raised portion of the clip, a plurality of elastically deformable wing extending outwardly and upwardly from respective opposite longitudinal sides of the pressing portion, and two latches extending perpendicularly outwardly in opposite directions from central portions of the wings respectively, wherein
• the clip combined with the clamp is received in a centermost one of the first slots of the heat sink, the wings resiliently fit between corresponding pins of the heat sink, and the latches prevent the clip from moving in directions parallel to the first slots.

A heat sink assembly comprising:

• a heat sink defining a base with a plurality of fins upwardly extending therefrom, said fins being arranged in rows and columns;
• a clip defining a central portion with a raised portion thereof, and a pair of spring arms extending from two opposite ends of the central portion, each of said spring arms defining a hook at a free end thereof;
• an anti-rotation device including a pressing portion pressing downwardly against the central portion with an opening, which said raised portion extends through and is at least partially restrained in, for restricting lateral movement of the raised portion and thus preventing rotation of the central portion;
• wherein
• the anti-rotation device further includes an anti-linear movement device engaged with the corresponding fins for preventing linear movement thereof relative to the heat sink.