Patent ID: 7753108

Claim:
A cooling plate of a liquid cooling device, the cooling plate comprising: a base for thermally contacting a heat-generating electronic component; a first pipe; a second pipe received in and spaced from the first pipe; a cover on the base, the cover comprising an outer tube integrally extending upwardly from a top thereof and an inner tube integrally extending upwardly from a top thereof, the inner tube being received in and spaced from the outer tube; a chamber being hermetically defined between the base and the cover; an outlet; and an inlet; wherein the outer tube is hermetically received in the first pipe, and the inner tube is hermetically received in the second pipe; the outlet and the inlet communicate with the chamber for liquid circulating through the chamber, the inlet is defined in the inner tube and the second pipe, and the outlet is defined between the outer and inner tubes and between the first and second pipes.