Patent ID: 7584781

Claim:
A liquid cooling device comprising: a base; a housing fastened to the base and defining a chamber with the base for containing liquid therein, the housing comprising an inlet and an outlet in communication with the chamber; a heat exchanger disposed within the chamber and comprising a plurality of stacked flakes, each flake having a plurality of first strips and a plurality of second strips, each first strip defining two cutouts in two opposite end edges thereof, each second strip defining at least a slot therein; wherein the first strips and the second strips of each flake are alternately arranged, the flakes being oriented in such a manner that the first strips of each flake are located in alignment with and attached to the second strips of a neighboring flake and the two cutouts of each first strip of the each flake are in fluid communication with the at least a slot of a corresponding second strip of the neighboring flake to thereby allow the liquid to flow through the heat exchanger via the two cutouts and the at least a slot; wherein the first and second strips are elongated and parallel to each other; and wherein the at least a slot defined in the each second strip is elongated and disposed at a center of the each second strip, and wherein a length of the each first strip between the two cutouts is shorter than a length of the at least a slot of the each second strip.