Advantages of EC fan

Advantages of EC fan:

EC motor is a DC brushless maintenance-free motor with built-in intelligent control module, with its own RS485 output interface, 0-10V sensor output interface, 4-20mA speed control switch output interface, alarm device output interface and master-slave signal output interface. The product has the characteristics of high intelligence, high energy saving, high efficiency, long life, low vibration, low noise, and continuous and uninterrupted work: The brushless DC motor eliminates the need for collector rings and brushes for excitation. greatly simplified. At the same time, not only the manufacturability of the motor is improved, but also the mechanical reliability of the motor operation is greatly enhanced and the service life is increased.

At the same time, the air gap magnetic density can be greatly improved, and the motor index can be optimally designed. The direct effect is that the motor volume is reduced and the weight is reduced. Not only that, it also has very excellent control performance compared with other motors. This is because:

First, due to the high performance of permanent magnet materials, the torque constant, torque inertia ratio, and power density of the motor are greatly improved. Through reasonable design, the indicators such as moment of inertia, electrical and mechanical time constants can be greatly reduced, and the main indicators of servo control performance have been greatly improved.

Second, the design of the modern permanent magnet magnetic circuit has been perfected, and the coercive force of the permanent magnet material is high, so the anti-armature reaction of the permanent magnet motor and its anti-demagnetization ability are greatly enhanced, and the control parameters of the motor vary with the external environment. The disturbance effect is greatly reduced.

Third, because the permanent magnets replace the electric excitation, the design of the excitation winding and the excitation magnetic field is reduced, thus reducing the excitation magnetic flux, the excitation winding inductance, the excitation current and many other parameters, thereby directly reducing the controllable variables or parameters. Combining the above factors, it can be said that the permanent magnet motor has excellent controllability.