Brushless DC (BLDC) vacuum cleaner motors are typically used in cordless stick vacuum cleaners. They offer a variety of advantages including better efficiency, high speed, and no noise. However, their disadvantages include lack of reliability, higher cost, and limited maintenance.

Brushless direct current (DC) motors are similar to synchronous motors, except they use permanent magnets instead of brushes to operate. This reduces the risk of sparking, ensuring long service life and eliminating the noise. BLDC motors can achieve an operating speed of over 120,000 revolutions per minute. Because of their high efficiency, they are ideal for applications requiring a high power to volume ratio. For example, a vacuum cleaner needs to be able to lift and remove carpet tiles as well as provide deep suction. The BLDC motor can be designed in a variety of ways to best suit the vacuum cleaner's specific requirements.

A typical brushless direct-current motor has windings on the stator and permanent magnets on the rotor. In addition, an integrated inverter produces an AC electric signal. It is powered by a DC electric source, such as a battery, and steps down the DC levels as required by the BLDC motor. These systems are commonly referred to as electronically commutated motors.

The most common topology for a BLDC motor uses a stator structure with three phases. The rotor has permanent magnets, and a commutator enables a smooth speed control. Commutation begins when a position is determined for the rotor. The permanent magnets are then spun within the rotor's overhang. Unlike a synchronous motor, which has an exponentially decreasing characteristic, a BLDC has a linear character.

BLDC vacuum cleaner motors are manufactured by a number of companies. One of the most popular brands is Dyson. It has a variety of features, such as a hard roller brush, a soft roller brush, and a detachable battery. Another feature is a large capacity 2500mAh rechargeable li-ion battery. Other features include a charging dock, a crevice tool, and quick access.

Several major OEMs are currently considering alternative motor types. They may be in need of stronger motors, which can withstand higher power outputs and can be used to raise carpet tiles. Alternatively, they may wish to avoid the complexities of brushless direct-current motors and choose a simpler universal motor. Regardless of the choice, a vacuum cleaner based on the BLDC design will have a much higher service life and less maintenance than one based on a standard AC motor.

If you are looking for a high-quality vacuum cleaner, you should contact the team at Power Motor R&D. Our engineers can provide a robust design for your vacuum cleaner project, and can also ensure that it meets your needs. Whether you require a vacuum cleaner for a home, an office, or a construction site, the team at Power Motor can provide a solution for your application. Whether your requirement is for a hand held or an upright vacuum, we have the expertise to meet your requirements.