The utility model discloses a power converter that wind power generation used, its structure includes casing, thread connector, panel, first connector, second connector, pilot lamp, power connecting hole, socket, heat abstractor, closing cap, is equipped with the pilot lamp above casing and the thread connector threaded connection, power connecting hole, the utility model relates to a power converter that wind power generation used, its structural heat abstractor that is equipped with, respond to inside temperature through temperature sensor, give the treater with signal transfer when the hightemperature, the iron plate that the is connected circular telegram that makes the right side produces magnetic force, the magnet that promotes the place ahead backs down the spring along the slider,the contact that makes its drive be connected impels right touches the circular telegram with the contact point mutually, make its motor carry out work, it is rotatory to drive its flabellum, rotatory through motor rotating band moving gear, thereby make left flabellum work together, it dispels the heat to inside to make wind see through the cold sink.