A simple generator can be transformed into wind energy. The cost is less than 10 yuan. Buy a VCD spindle motor from a component store or a place where DVD players are repaired (not a DVD motor. The rotation speed is too high and the power output is not good). The purchase price of the motor does not exceed 3 yuan, and it must be completed within 10 yuan.
After purchasing the spindle motor, attach the fan blades to its turntable. You can make your own wind leaves from cans. But it must be balanced and the angles well proportioned, and not let it rotate unsteadily. Beforehand, connect a 100 ohm resistor to the motor wire and connect it in series with the high-brightness light-emitting diode to form a loop. Be sure to pay attention to the direction of rotation of the motor. Viewed from the turntable, turning clockwiseAs shown, the red line is the positive output terminal of the "generator". Adjust the blade angle to meet the conditions, and the wind turbine model is complete! This is from the Internet. Just modify it a little, stick the bottom of the box to the motor turntable, adjust the angle of the fan blades and let the generator rotate clockwise downwind .