Vibrator Motor Working and Applications

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The first vibrator motor was developed in the year 1960 which are used for product massaging, but the motor development has taken a new twist in the year 1990 as users need vibration calls on their cell phones. At present, the motor designers, as well as users, have discovered from mobile phones, that mobile alerting with vibration is an outstanding technique to alert mobile operators to an incident. Nowadays, small vibrating motors are used in a wide range of applications like scanners, tools, GPS trackers, control sticks, and medical instruments. These motors are also the main actuators for force feedback which is an economical method to enhance the value of a product.

What is the Vibrator Motor?

Vibration motor is a coreless DC motor and the size of this motor is compact. The main purpose of this motor is to alert the user from receiving the call by without sound/vibrating. These motors are applicable for different applications like pagers, handsets, cell phones, etc. The main feature of this motor is, it has magnetic properties, lightweight, and motor size is small. Based on these features, the motor performance is highly consistent. The configuration of these motors can be done in two varieties one is coin model and another one is a cylinder model. The vibrator motor specifications mainly include type, max operating torque, max.centrifugal force, weight range, rated current and output.

Vibration Motor Design and Working

The construction of these motors can be done in two varieties one is coin model and another one is the cylinder/ bar model.

vibrator-motor
vibrator-motor

1). Coin Type Vibrator Motor

The coin type motor can be built with a case, bearing, rotor, shaft, magnet, bracket, FPC, counterweight, brush, coil assembly, lead wire, & adhesive UV. The commutation points get in touch with brushes end. It will strengthen the coils within the rotor. Stimulating the coils generates a magnetic field & it is well-built to cooperate with the ring magnet incorporated into the stator to cause rotation.

Because of the magnetic field, a force can be generated which causes the weight to move. The frequent dislocation of the weight generates an unstable force called as vibration. Motor’s commutation points can be used to change the pairs of polarity, so that when the rotator moves, then the electrical coils are continually overturning the polarity.

2). Bar/Cylinder Type Vibrator Motor

The bar type is also called a cylinder shape vibrator motor. Basically, this motor is balanced improperly. This force moves the motor, and its high-speed dislocation makes the motor to vibrate. This can be altered with the attached weight mass, the distance to the shaft, & the speed at which the motor turns. The centrifugal strength which is produced by the unbalanced weight rotation will cause the motor throb in two axes like X-axis and Z-axis.

Frequency: f vibration = (Motor RPM)/60

Force: Fvibration = m * r * w2

Where ‘m’ is electric weight mass, ‘r’ is the offset distance of mass and ‘ω’ is the motor’s speed.

ω = 2πf

The centrifugal force can be measured using the above equations. Based on the relationship of every component in the above equations, we can conclude that a high-weight mass with a high-offset from the shaft will produce more force & vibration amplitude. In addition, when the increased voltage is supplied to the vibrator motor, then it will enhance its speed, frequency & the amplitude.

Vibrator Motor Applications

The applications of the vibrator motor include the following.

  • These motors are extensively used in a range of applications like handsets, cell phones, pagers, etc
  • These motors are used in numerous material handling devices like conveyors, feeder, and vibrating screens.
  • These are also utilized on hoppers, silos to stop blocking of the flow of material.
  • These are used in compacting machines & foundry shakeouts for quick & proficient operation.
  • Vibrator motor Arduino can be used to control the motor
  • Processing
  • Mining and plastic industries
  • Manufacturing of Cement
  • Generation of Power
  • Plastic industry
  • Food processing
  • Petrochemical

Source:https://www.elprocus.com/vibrator-motor-working-and-applications/