Patent ID: 8270168

Claim:
A heat sink having auto switching function, comprising: a receiving-end USB data transmission wire for receiving a control command from an external device; a heat sink device; and a control unit electrically connected to the receiving-end USB data transmission wire and the heat sink device for receiving the control command from the receiving-end USB data transmission wire for controlling the heat sink device executing corresponding operations, wherein the heat sink further comprises a base consisted of thermal conductive materials and the receiving-end USB data transmission wire, and the heat sink device and the control unit are disposed in the base, wherein the heat sink further comprises a base consisted of thermal conductive materials and the receiving-end USB data transmission wire, and the heat sink device and the control unit are disposed in the base, and wherein the thermoelectric cooler has a cool end surface and a corresponding hot end surface, and the cool end surface attached to the bottom surface of the base for reducing the temperature evenly across the base surface via thermal conduction.