Patent ID: 7552759

Claim:
A heat exchange device comprising: an evaporator containing therein a working fluid, the working fluid being capable of turning into vapor in the evaporator upon receiving heat; a condenser defining therein a chamber; a vapor conduit and a liquid conduit each being connected between the evaporator and the condenser, wherein the vapor conduit is separated from the liquid conduit, the evaporator, the condenser, the vapor conduit and the liquid conduit cooperate to form a closed loop, the vapor is capable of being transferred via the vapor conduit to the condenser and turning into condensate in the condenser upon releasing the heat carried by the vapor, and the condensate is capable of being transferred via the liquid conduit to the evaporator; wherein a plurality of pins extend from an internal surface of the chamber of the condenser and are received in the chamber, a distal end portion of the vapor conduit extends into the chamber of the condenser and is disposed adjacent to the pins, a plurality of opening are defined in the distal end portion of the vapor conduit and face towards the pins; and wherein the evaporator defines therein a chamber, the chamber of the evaporator includes a liquid micro-channel region and an adjacent evaporating region, and a third wick structure is arranged inside the evaporator, the third wick structure spans across the two regions.