Motors can either use direct current or alternating current to run. DC motors make use of dynamos. Dynamos are used to convert electrical energy into mechanical energy. The dynamo uses the laws of physics to convert static energy into electrical energy.
This study highlights the whole process of how DC motors work to convert energy from one stat to another.
A motor is an electric device that converts energy from its electrical form to a mechanical state to be used to do work. DC and AC motors are similar, but the difference lies in the kind of current DC and AC motors work. While AC motors change alternating current to mechanical energy, DC motors work with direct currents.
Electrical currents pass through the magnetic fields of the DC motor to move the dynamo rotor inside the motor’s shaft. Also, the electrical currents and the motor design, including the magnet’s size, determine the motor’s speed and power.
How the motor works
Direct current is a term used to connote any electrical equipment that converts direct current into mechanical energy. These types of motors come in various sizes.
They are used inside toys, appliances, or in large systems that power cars, elevators, and hoists. Motors are also used in steel mills to move the pulley systems. How exactly do they do that?
Direct current motors have two main parts; an armature and a stator. The stationary side of the engine is made up of the stator, while the active part is made up of the armature. It is not wrong to say that the stator is essential to the motor. It is so because it provides the magnetic field that makes the movable part of the motor move.
The stator comprises a pair of magnets on opposite sides and a coil of copper wire going around them. When a direct electric current is passed through, an electromagnetic field lined with the center of the coil is generated. The more the windings are, the higher the electromagnetic field generated hence the more substantial the movement of the motor.
The motor’s rotation can be regulated using a switch; the steady rotating force created is known as torque. It can be made intermittent by switching the electric currents on and off.
The invention of the DC motor
No words can describe how electric motors have changed the human life and made it bearable by making most of their work easier. Credit goes to the American-born Thomas Davenport as the inventor of the DC motor, considering that he was the first person to patent the first working motor in 1837. It is, however, not the truth.
Davenport was not the first person to build the first working DC motor. Many developments had already taken place across Europe when Davenport filed the patent. Moritz Jacobi, in 1834 presented a potent, active engine, while Sibrandus Stratingh and his counterpart Becker were the first to demonstrate the actual application of a working motor. They did it in a car.
Both the AC and DC motors use the exact mechanisms to operate. Their difference lies in the current they use to generate the mechanical energy from engines. Check electric motor prices in kenya.