Dual-mode automatic switching friction nanometer generator

The invention discloses a dual-mode automatic switching friction nano-generator, which comprises a stator and a rotor rotatably connected in the stator, a film array is arranged on the inner side of the stator, an electrode array is arranged on the outer side of the rotor, a functional blade is arranged on the outer side of the rotor, one end of the functional blade is connected with the rotor, and the other end of the functional blade is connected with the rotor. The end, away from the rotor, of each functional blade is a free end, the free ends of the functional blades are in a non-contact state with the inner wall of the stator when in a static state, the generator is a non-contact friction nanometer generator at a low rotating speed, the resistance is small, the functional blades and the sheet-shaped film are not abraded, and the performance of the generator is improved. During starting, only very small external excitation is needed, and at a relatively high rotating speed, the functional blades are unfol