Called thin flat "220V AC Cooling Fan", its greatest feature is to remove the usual fan motor. When electromagnetic CTT power arises between magnetism and permanent magnets can thrust femoral artery "220V AC Cooling Fan" change. "Jinling High School students Di Xu Ming, a self months of this invention have in common. Di Xu say so, in this flat "220V AC Cooling Fan" coil frame size 5 battery on a "solenoid", as well as 5 about the size of a magnet, they are "permanent magnet", when the electromagnetic CRC electricity, arises between the magnetic force, and the permanent magnet thrust fans will be able to change the femoral artery.