EC Roof Fan

EC Roof Fans As BELMONT Made

China is a prominent OEM manufacturer of axial fans. EC fans are a new type of fan in the fan industry. They are different from other DC fans. They can not only use DC voltage as power supply, but also AC voltage.

The voltage is universal from DC 12V, 24V, 48V to AC 110V, 380V. No inverter conversion is required. All internal components of the motor are DC power supply, built-in DC to AC, using rotor position feedback, 3-phase AC, permanent magnet, synchronous motor.

EC roof fan is a type of fan that is used to ventilate the roof of a building. It is typically mounted on the roof of the building and uses an electronically commutated (EC) motor to power the fan blades.

Advantages Of EC Roof Fans

Brushless DC motors greatly simplify the structure by eliminating the commutator and brushes used for excitation. At the same time, it not only improves the processability of the motor, but also greatly enhances the mechanical reliability and service life of the motor. At the same time, the air gap magnetic density can be greatly improved, and the motor indicators can achieve the best design. The direct effect is that the motor size is reduced and the weight is reduced. In addition, compared with other motors, it also has excellent control performance.

Due to the high performance of permanent magnet materials, the motor’s torque constant, torque inertia ratio, power density, etc. are greatly improved. Through reasonable design, the rotation inertia, electrical and mechanical time constants and other indicators can be greatly reduced, and the main indicators of servo control performance have been greatly improved.

The design of modern permanent magnet magnetic circuit is relatively perfect. In addition, the coercivity of permanent magnet materials is high, so the anti-armature reaction and anti-demagnetization ability of permanent magnet motors are greatly enhanced, and the control parameters of the motor are greatly reduced with the influence of external disturbance.

Since permanent magnets are used instead of electric excitation, the design of excitation windings and excitation magnetic field is reduced, thus reducing the excitation magnetic flux, excitation winding inductance, excitation current and many other parameters, which directly reduces the controllable variables or parameters.

What Is The Difference Between EC fans And AC fans?

BELMONT as reputed Axial fans manufacturer and supplier, we will explain you the related differences between EC and AC types.

• It can achieve constant pressure, constant current, constant power and other control modes, so that the mechanical load is small and the working efficiency is high.
• It can adjust the power supply output voltage in real time according to the load change, and automatically adjust the fan speed when the power supply voltage fluctuates to maintain stable operation.
• Small starting torque, short starting time, fast transient response, and fast changing air volume response.
• In long-term operation, the energy consumption of EC fans is lower than that of AC fans, and the maintenance cost is also lower.
• EC fans do not need to use additional electrical components such as inverters and capacitors. The system is simpler, more reliable, has lower noise and a longer service life.