A big generator powers a lot of homes, but the generator we see now is a small generator, which is only capable of powering small LEDs, motors etc… Also this concept can be extended to charging a phone or a rechargeable battery etc. Before we actually build it, let’s see the concept behind this.
A generator is that which converts one form of energy into other form. In this case we are converting mechanical energy into electrical energy. For this purpose, we shall take an electric motor and turn it to electric generator. An electric motor converts electrical energy into mechanical energy, whereas, an electrical generator converts mechanical energy into electrical energy. Applying mechanical energy is not a big deal, just turn the rotor of the motor. You will get electrical energy from the other side.
So, here are the steps you need to follow…
Step 1: All the things that you need to make it are: A DC motor, a small stick, LED bulb, a plastic container.
Step 2: Fix the rod into the rotor’s hole, and glue it. Make sure that the rod or wooden stick doesn’t come out.
If the motor you have has a thin rotor, then you might not find a hole on the rotor. So, you can fix a cap to it and glue it. Then rotate the rotor. Remember that your main aim should be rotating the rotor.
Step 3: Now, solder the LED to the DC motor ends and start testing. Just rotate the rotor using the stick you fixed to the rotor end. Check out the video below.
Step 4: Take a small plastic ball and make a hole that can take the LED inside the ball. Find a cup or something to put the motor in it and make a hole that can project the rotor outward. Fix the motor using a thread or a tape.
Step 5: This is almost done now, all that is to be done is, colouring. Or just tape it with a coloured tape.
Everything is done now, just rotate the rotor using the stick attached and the bulb glows!
This is how it looks…
As said before, this can be extended to charging a rechargeable battery or a mobile phone. I am working on it, it may take a while, but do expect a part-2 for this article.