| 摘要 |
The present invention is a heat sink with a heat transfer medium for enhancing the heat transferring ability of the heat sink. In one embodiment, the heat sink comprises a plurality of fins with cavities, a base and a fluid heat transfer medium. The fins are in thermal contact with the base and configured to form a series of longitudinal channels through which air or a fluid medium may pass. The fluid heat transfer medium contained within each of the cavities. The fluid heat transfer medium enhances the heat sink's ability to transfer heat without increasing its surface area, size and/or weight. This enhancement is due to the fluid heat transfer medium's latent heat of vaporization and condensation. Specifically, a larger amount energy is required to vaporize the fluid heat transfer medium. Thus, a large amount of heat can be conducted from the base to the fluid heat transfer medium. Conversely, as the vaporized fluid heat transfer medium condenses on the upper cooler walls of the fins, a large amount of energy is conducted from the vaporized fluid heat transfer medium to the fins. Thus, a larger amount of heat can be conducted from the fluid heat transfer medium to the fins which can then dissipate the heat to lower temperature surroundings.
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