Patent ID: 8418456

Claim:
A heat-pipe electric power generating device, suitable for converting a heat energy or a heat source energy into an electrical energy, comprising: a heat-pipe, having a sealed internal chamber, and generating an airflow from an evaporating end to a condensing end due to a pressure difference between two ends of the heat-pipe, wherein an inner wall of the heat-pipe is disposed with a capillary structure; a magnetic field change generating device, disposed within the internal chamber of the heat-pipe, comprising: at least a fan, wherein a permanent magnetic substance is disposed on the fan to generate a magnetic field; a hollow case, aligned with an inner wall of the heat-pipe, wherein the hollow case is disposed at the evaporating end of the heat-pipe entire outer wall of the hollow case contacts with the capillary structure, and at least an opening is disposed at the sidewall of the first end of the hollow case so that a vapor generated at the inner wall of the heat-pipe enters the hollow case through the opening; a bearing, disposed on a second end corresponding to the first end of the hollow case to install a shaft of the fan; at least an airflow passage, directing the vapor inside the hollow case to the fan; and a stator coil of a generator, disposed on a position corresponding to the fan at an outer of the heat-pipe.