Drive Motors

How Electrical Drive Motors Work

The basic mechanism of an electrical drive motor is simple: you give electricity on one end and a metal rod or axle that rotates on the other end. This gives you the desired power to drive the machine.

How the motor works

Depending on the make and model of the machine, the electric drive motor can work in two ways. It will either use the electric current to periodically reverse directions known as alternating current.

This mechanism is often seen in small, battery-powered motors that you usually use in your home that are made from spare components pieced together with adhesive foil tape. On the other hand, if you add a commutator to the end of the coils, the motor will work more efficiently.

The commutator is a unique metal ring that divides into two halves. Its job is essential when it comes to providing current. This ring reverses the electrical current in the coil for each half a turn rotation.

You will find that one end of each coil is attached to every other half of the commutator. The electric current passing from the battery will connect to the motor’s terminals. These terminals, in turn, provide electric power to the commutator using a pair of brushes or loose connectors made from thin strips of springy metal or pieces of graphite.

When the commutator is in its correct place, electricity will flow through the circuit while the coil rotates in the same direction continuously. On increasing the torque of the motor, it will become capable of offering more power to the machine.

DC motors also exist in the market, but they are not as efficient as the AC motors. DC motors were previously used in radio-controlled cars, model trains, and small household appliances. But, the mechanism of AC drive motors is more advanced due to which they are usually used in most appliances used now.