Schoolchildren get acquainted with the device of the collector electric motor in physics lessons. Children can reinforce this knowledge by assembling a motor on their own from a construction kit, for example, from Meccano.
Instructions
Step 1
Find in the package of the designer three cores for winding coils, the same number of insulating frames, as well as a winding wire. Put on the frame on each of the cores, then wind as many turns of wire as indicated in the instructions. Both the number of turns and the direction of winding must be the same on all three coils.
Step 2
Attach the finished electromagnets to the rotor. Place the collector slats in the special grooves. Pre-solder the wires to them in this order: to the first lamella - the beginning of the first winding and the end of the third, to the second lamella - the beginning of the second and the end of the first, to the third - the beginning of the third and the end of the second. Allow the slats to cool before installing them. Solder from the back side, do not let the solder get on the working surfaces of the lamellas.
Step 3
Attach the first rotor holder with bearing to the base. Insert the rotor into the bearing of the first carrier and, on the other side, into the bearing of the second. Only after that, fix the last one on the base.
Step 4
Install the brush with the spring in the brush holder, then press it on the side of the collector, and then fix the brush holder to the base. On the opposite side, place the second brush holder with the brush in the same way.
Step 5
Install the stator - a U-shaped permanent magnet or two separate magnets. The latter should be located on opposite sides of the rotor. They should be directed to it with opposite poles. The stator must not interfere with the rotation of the rotor.
Step 6
Connect the battery to the engine, the voltage recommended in the instructions. It will start spinning.
