The difference between HVLS ceiling fan PMSM motor and reducer motor

The difference between HVLS ceiling fan PMSM motor and reducer motor

The main difference between industrial large ceiling fan（HVLS ceiling fan） permanent magnet synchronous motors and reduction all-in-one motors is their structure and function.

Permanent magnet synchronous motor (PMSM) is a kind of synchronous motor that uses permanent magnets as the excitation source. Its working principle is that the stator is energized by alternating current to generate a rotating magnetic field, while the rotor is a permanent magnet, and the magnetic field generated by the stator drives the permanent magnet to rotate, thus realizing synchronous operation. Permanent magnet synchronous motors are characterized by high efficiency, stability and low energy consumption, and are suitable for applications requiring high efficiency and high power density.

Reducer integrated machine, on the other hand, is a transmission device that integrates the reducer and motor together. The function of the speed reducer is to reduce the speed and increase the torque, and it usually consists of a gear drive, worm drive or gear-worm drive. The main features of the integrated reducer include compact structure, high efficiency, low noise and high reliability. Reduction integrated machine is widely used in the occasions that need reduction drive, such as steel industry and machinery industry.

PMSM Motor type

Reducer motor type

The main difference between HVLS fan permanent magnet synchronous motor and reduction all-in-one machine is:

Structure: permanent magnet synchronous motor consists of stator and rotor, the rotor with permanent magnets; while the reduction all-in-one machine is a device that integrates the speed reducer with the motor and contains a gear transmission mechanism.

Function: Permanent magnet synchronous motors are mainly used to provide efficient and stable power output; gearboxes are mainly used to reduce speed, increase torque, simplify design and save space.

Application: Permanent magnet synchronous motors are suitable for applications requiring high efficiency and high power density; gearboxes are suitable for applications requiring reduction drives.

Industrial big ceiling fan permanent magnet synchronous motor and reduction integrated machine have significant differences in structure, function and application.

A customer from Spain, in order to lower energy consumption requirements, as well as the height limitations of the farm（PMSM motor type with more compact design to save space）, finally purchased two 3.6 m diameter permanent magnet synchronous motor type industrial ceiling fans.