Green Waterproof Cooling Fan

Origin "Waterproof Cooling Fan" of
In 1830, a man named James Byron was inspired by American watches from the structure, the invention can be mounted on a ceiling, with a spring-driven "Waterproof Cooling Fan". This fan blades rotate slowly bring cool people feel happy, but have to climb the ladder to the winding, very troublesome. In 1872, a man named Joseph, of the French people and developed a turbo start by clockwork, gear drive chain means mechanical fan, this fan than mechanical fan Byron invention more sophisticated, use is also convenient. In 1880, the first time the Americans Shule blade mounted directly on the motor, connect the power supply, the rapid rotation of the blades, cool breeze blowing, which is the world's first fan.
"Waterproof Cooling Fan" is mainly composed of four parts
Rotor: the magnet, the blade and the shaft composition;
Stator: from silicon, spools and bearing components;
Control circuit: IC induced by a magnet;
S. pole circuit control via its coil is turned on and generates an internal excitation of the rotor to rotate.