Structure for evenly applying forces on a heat dissipation base

Abstract

A structure includes a heat dissipation base having through bores formed at four corners thereof for screw fastening elements to extend therethrough and fix the heat dissipation base to a top of a heat source, a boss upward protruded from the heat dissipation base, and a shaft extended in a radial direction through the boss with two ends projected from the boss; a hold-down member disposed on the heat dissipation base and formed with a through-opening for externally fitted around the boss; and an adjustment element having a hollow cylindrical body fitting around the boss and having a sliding slot section and a force applying section operable for the sliding slot section and the shaft to slide relative to each other and drive the hollow cylindrical body downward against the hold-down member, forcing the latter to apply evenly downward forces on a central area of the heat dissipation base.