Patent ID: 8693197
Filing Date: 2014-04-08
Classification: H01L,H02M

Abstract:
1. A heat sink device, suitable for performing heat dissipation on a high-power medium-voltage drive power cell, the heat sink device comprising: a heat dissipation substrate having a first surface, a second surface and an inner layer between the first surface and the second surface; and a heat pipe having an evaporation section and a condensation section, wherein the evaporation section of the heat pipe is buried in the inner layer of the heat dissipation substrate, and the condensation section of the heat pipe is used to dissipate heat from the evaporation section to air, wherein one portion of power elements of the high-power medium-voltage drive power cell operated with a high-frequency signal are disposed on the first surface of the heat dissipation substrate, and another portion of the power elements of the high-power medium-voltage drive power cell with a low-frequency signal are disposed on the second surface of the heat dissipation substrate, the high-frequency signal is a signal that operates at a higher frequency then the low-frequency signal, such that the interference of the high-frequency signal to the low-frequency signal may be effectively prevented.