Patent ID: 8550149
Filing Date: 2013-10-08
Classification: G06F,H01L

Abstract:
1. A water-cooled heat sink comprising: a base with substantially parallel fins on top of the base and substantially parallel channels extending through the base; a box fixed on the substantially parallel fins of the base and receiving a cooled liquid; a driving module fixed between the base and an outer surface of the box, in a receiving portion, the driving module comprising a first magnet; a propelling module fixed into the box, comprising a cylinder fixed in a bottom of the box, a piston disposed in the cylinder and defining a through hole, a second magnet fixed in the piston, and a valve received in the through hole; a first conduit interconnecting the base and the cylinder; and a second conduit interconnecting the base and the box, wherein the first magnet repels the second magnet to drive the piston away from the second magnet to open the valve, such that the cooled liquid is introduced from the box into the cylinder, the box further defines a water inlet hole and a through hole, the cylinder defines a water outlet hole, the first conduit passes through the through hole of the box, and interconnects the base and the water outlet hole of the cylinder, the second conduit interconnects the base and the water inlet hole of the box.