Energy-saving generator without iron-core

The utility model relates to an energy-saving generator without iron cores. Stator coils are in a shape like the Chinese character 'kou', and one side of the coils are provided with a hole; a rotor is a cylindrical magnet, and a rotor shaft is inserted in a center hole of the cylindrical magnet through the hole which is arranged on one side of the coils. The utility model has the advantages that the resistance of the generator is reduced to a minimum because of the structure characteristic of the utility model, and the generator does not produce the heat energy; the efficiency can also be greatly enhanced.