Heat sink assembly

DETAILED DESCRIPTION The main object of the present invention is to provide a heat sink assembly having a finned plate, a support member detachably mounted onto the finned plate, a fan mounted on the support member and a plate securely connected with the finned plate for positioning the fan and the support member therebetween.
Another object of the present invention is to provide a heat sink assembly, which has at least two legs extending outwardly each having a contact face formed on the distal end thereof and received between the underside of the plate and a space between two adjacent fins and a support extending out therefrom and having a stepped structure formed on the free end thereof to be received in a space in the finned plate.
With such an arrangement, the electrical wire is securely and easily received in the stepped structure.
A further object of the invention is to provide an improved heat sink assembly having an annular flange formed on the edge defining the hole in the plate.
With the provision of the annular flange, the air flow generated by the fan will no longer be restricted because the annular flange blocks any reversed air flow caused by the outer fins of the finned plate.
Therefore, the heat dissipation effect of the invention is greatly improved.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.