Features And Uses Of Brushless DC Motors

The brushless DC motors is one of the most significant devices used for a wide variety of applications. The use of these motors has helped to save time and effort in various industrial fields. These motors were first discovered in an attempt to increase the efficiency of the DC brush motors. The brushless motors have no physical commutator which is considered to be one of the major differences between the brushed motors and brushless motors.

Advent of Brushless DC Motors:

Compared to the brush DC motors, the brushless DC motors are inclusive of several advantages features which have increased its usage in various fields of application. In the course of time, this device was developed and upgraded which has further enhanced its usage in various fields. It is used in different fields of applications such as aircrafts, robotics and disk drives.

Due to the intense usage in different applications, the brush device wears off which is considered to be a great disadvantage of brush DC motors. However, with the use of brushless DC motor in aircrafts and other applications, the efficiency and the reliability of these devices were increased manifold.

The modern brushless motors are known to be more efficient as it is combined with the use of high voltage transistors and permanent magnets. Today there are many motor manufacturers that design and manufacture brushless DC motors of various sizes suited for different applications.

The brushless motors are known to have a higher life expectancy and it can be used for high speed operations. It is essential to use these motors for long term applications for better performance. Brushless motors with high power can be used for industrial machineries and electrical vehicles. Low powered motors are used for radio controllable aircrafts and other appliances.

These motor devices have various advantages which increases its usage. It includes quick acceleration and responsiveness which allows it to accelerate, decelerate and reverse the direction of the rotation quickly. There is hardly any need to replace or repair these devices as it includes highly reliable and efficient motors. These motors can also operate in loaded and unloaded conditions at a high speed.

How To Buy The Best Heavy Duty DC Motor

From small applications like disk drives and toys to advanced applications like mills and transport trucks, DC motors are widely used these days. While purchasing a motor to operate heavy duty equipments, it is important to be informed and careful about the most critical factors.

Motors that operate on direct current are usually simple in terms of design. Even the heavy duty motors in this category have simple constructions with low voltage and high power consumption. The first thing that must be evaluated is the power consumption that the motor would demand. It will decide the cost of operating these motors and the user’s ability to afford it.

 

DC motors must be purchased according to the applications and the desired needs. Many manufacturers offer customized products to meet the user needs. The user must be able to operate the intended heavy equipment using the motor for desired amount of time. Speed is another important factor for the time-bound applications. Make sure to learn about the maximum speed at which the motor can operate. Compatibility with the power source is another important factor so that the need to replace the power source does not arise.

The material used in the construction must be capable of lasting long in different types of environments. It is recommended to discuss with the vendor whether the material of the motor has anti-corrosive properties or not. Long life is one expectation that the buyers have from DC motors they invest in.

 

The choice of the popular and reliable manufacturer and supplier should not be overlooked. Compare different types of motors from various manufacturers located in different parts of the world. For this, online business directories offering product catalogs are good platforms. The manufacturer should be a certified one and the supplier should offer after-sales services. In addition, ask for the warranties before packing the purchase.

Cost of a DC motor may be an important factor for many. It is possible to find the motors at standard prices on the internet. It is advised to do a good research on the internet to choose among the DC motors offering good quality and available at decent price tags.

DC Motor Problems and Maintenance Tips

The DC motor or the Direct Current motor is used to convert electrical energy into mechanical energy. There are different types of dc motors used in various applications. There are basically two types of motors- the DC motors and the AC motors. The dc motors are the simplest type of motors used in various household appliances such as electric windows in cars, razors and so forth. Although the functions of the dc motors are quiet simple, these motors do malfunction in the course of time.

Problems of the DC Motors

Dc motors require more maintenance and care than the AC motors. It is quiet important to maintain these motors frequently to achieve maximum results. Some of the most important maintenance tips include altering the brushes; machine the commutators in place, check winding insulation with meters.

Some of the most common problems with the dc motors include its inefficiency to start immediately. There are many reasons for its incapability to start such as low voltage supply, wrong connection, excessive load, frozen bearing, ground fault and so forth.

Sparks in the brushes is another problem associated with the dc motors. Sparks may be caused due to insufficient contact and inappropriate size of the brushes. The dirt on the commutators can also cause relevant problems in the dc motors.

Maintenance Tips

It is quiet important to check the size of the brush. If the size of the brush is inappropriate, it can cause problems. The motor brushes should move freely while disassembling. Temperature controller controls the temperature in these motors.

It is also important to ensure that the spring tensions of all the brushes are equal. The face of the brushes should be polished and shiny which shows good contact. It is essential to replace the brushes if it is not polished enough.

The commutators should be kept clean and shiny. Use a fine sandpaper to clean the commutators. Blow away dirt or dust on the commutators using a blower. It is also important to replace the commutators if the groves are worn out.

Regular maintenance of the dc motors help to save time, money and energy. It is better to replace and correct weak brushes rather than replacing the entire motor.