Heat sink clip with pressing post

A heat sink assembly comprising:

• a heat sink having a mating portion defined therein;
• a support module having first engaging means;
• and
• a clip adapted to attach the heat sink onto an electronic package, the clip comprising a main body, a post, and a resilient element, the main body comprising a longitudinal portion, first and second locking arms extending downwardly from opposite ends of the longitudinal portion, the longitudinal portion defining a through aperture, each of the locking arms defining second engaging means to engage with the first engaging means of the support module, the post extending through the through aperture of the longitudinal portion and having a pressing portion at a bottom thereof fittingly received in the mating portion of the heat sink, wherein the resilient element is disposed around the post below the longitudinal portion.

A heat sink assembly comprising:

• a heat sink defining an elongated slot;
• a heat generating device on which the heat sink is seated;
• an electrical device located under the heat generating device with locking devices thereon;
• a clip including a longitudinal portion located in the slot, with two opposite locking arms respectively located at two opposite ends thereof and latchably engaged with the corresponding locking devices, respectively;
• a post located on a middle portion of the longitudinal portion and vertically moveable relative thereto;
• and
• a compressed coil spring surrounding said post with an upper end upwardly abutting against the middle portion and a lower end downwardly abutting against a lower end of the post;
• wherein the lower end of the post imposes forces upon the heat sink due to compression of said coil spring;
• wherein said lower end of the post is located in a hole of the heat sink under said slot.