Electric vibrating motors are regularly used in many different electrical objects in daily life. When your cellphone vibrates, it uses a tiny electric motor to produce the vibrations that alert you of an incoming phone call. The same types of vibrating motors are used in doorbells, pagers, and other machines that rely on vibration alerts.
People who enjoy tattoos also often don't realize the usefulness of vibrating motors that work to keep the tattoo machine producing the engraving capabilities through repeated vibrations against the surface of the skin.
With the numerous uses that vibrating motors have in daily life, it is important to have a basic understanding of how they function. This can enable you to make better decisions regarding your electrical equipment moving forward.
Electric components in vibrating motors
A vibrating motor can be described as a DC (direct current) motor that is compact in size and doesn't produce sound when a signal comes in. Rather, the motor vibrates in response to incoming signals.
At the heart of an electric vibrating motor is its magnetic coreless DC motor. This motor is unique because it always retains its magnetic properties. Unlike other electromagnets that only exhibit magnetic properties when an electric current comes through, the special motor of this unit has its magnetism always turned on.
The DC motor is also small in size, lightweight, and uses minimal power consumption. This makes the motor a powerhouse in its ability to perform.
The main components of electric vibrating motors include:
The rotor is the part of the electric motor that is non-stationary. It uses the wires and the force of the magnetic field to rotate around its axis and produce the vibrating motion that users experience.
The movement of the rotor is determined by the windings of the coil around its surface and the torque generated by the magnetic field.
The stator is the part of the motor that remains stationary. It is responsible for generating the magnetic field, and it works with other components of the motor assembly to create motion in the rotor.
The commutator is essentially a switch. It is responsible for generating current between the rotor and an external electric circuit. It is therefore responsible for making or breaking the electric circuit as the switch is flipped on and off. You could also think of the commutator as the trigger that turns vibrations on and off.
The windings are turns of coil that are responsible for generating a magnetic field. When current flows through these electrical windings, a magnetic field is generated and the motor begins to vibrate. The winding coils are typically placed around the stator.