Patent ID: 6865082

Claim:
A heat dissipating assembly adapted to be provided on a circuit board for dissipating heat produced by an electronic component that is mounted on a first surface of the circuit board, the circuit board further having a second surface opposite to the first surface and being formed with a set of through holes, each of which extends from the first surface to the second surface, said heat dissipating assembly comprising: a base frame adapted to be disposed on the second surface of the circuit board and including a bottom part with first and second sides opposite to each other in a first direction, said first side being formed with a first engaging unit extending upwardly therefrom, said second side being formed with a second engaging unit extending upwardly therefrom, each of said first and second engaging units being adapted to extend through the through holes in the circuit board; a heat-dissipating module adapted to be mounted on the circuit board and including a heat transfer plate adapted to be disposed on and to establish heat-conductive contact with the electronic component; and an anchoring device including a first anchoring unit that engages said first engaging unit, a second anchoring unit that engages said second engaging unit, and an abutting unit connected to said first and second anchoring units, said anchoring device biasing said heat transfer plate of said heat-dissipating module toward the electronic component when said first and second anchoring units engage said first and second engaging units, wherein: said first engaging unit includes a first engaging post with a diameter-reduced neck portion; said second engaging unit including a second engaging post, and an enlarged head portion provided on a top end of said second engaging post and formed with a convex top surface; said first anchoring unit including a forked plate that engages said neck portion of said first engaging post; said second anchoring unit including a U-shaped plate that has upper and lower plate portions, and an intermediate plate portion interconnecting said upper and lower plate portions, said lower plate portion being formed with a notch that is slightly smaller than a largest diameter of said head portion on said second engaging post, said second engaging post engaging said notch and said head portion being retain between said upper and lower plate portions when said second anchoring unit engages said second engaging unit.