Quality First! We always dedicated to strict quality control and thoughtful customer service.
For cooling fans, many people are very familiar with them, and they are used frequently in daily life. For example, they are used in household appliances, electronic products, and digital computers.
Jiashan Minqin Oilless Bearing Co., Ltd. is a hot exhaust function. Cooling fans can be divided into AC fans, DC fans, and EC fans. Next, we will introduce the AC/DC/EC fans in detail. the difference.
The difference between AC/DC/EC fans
AC fan is what we call AC cooling fans. The principle and production method of this kind of fan is very simple, so I won't talk more about it here. Today we mainly focus on DC fans and EC fans.
Both DC fans and EC fans are DC cooling fans, but there are certain differences between them. A simple summary: DC input is direct current, EC can input alternating current, which converts AC to DC.
Features of EC fan: EC fan is a new product in the fan industry. It is different from other DC cooling fans. It can not only use DC voltage power supply, but also AC voltage power supply. Voltage from DC 12v, 24v, 48v, to AC 110V, 220V, 380v can be universal, no need to add any inverter conversion. All internal components of the motor are DC power supply, built-in DC to AC, rotor position feedback, three-phase AC, permanent magnet, and synchronous motors.
The advantages of Ec fan: EC motor is a DC brushless maintenance-free motor with a built-in intelligent control module. It has its own RS485 output interface, alarm device output interface and master-slave signal output interface. This product has high intelligence, high energy saving, and high efficiency. , Long life, low vibration, low noise and continuous uninterrupted work.
Comparison of EC fan and ordinary fan
The difference between the structure of a DC Ec fan (using electronic commutation technology) and an ordinary AC fan (non-electronic steering control type) lies in the motor. The difference between DC motor and AC motor is: AC motor is mainly composed of stator, rotor and bearing system. In addition to the main part of the DC motor, there is also a PC board placed in it. At the same time, the rotor of the DC motor is a permanent magnet or a magnetic stripe, and electronic components are used to control the commutation, which solves the life defect of the original brush motor. The rotor of the AC motor of an ordinary fan is made of laminated silicon steel sheets. Because it is a non-electronic steering control type, there are losses such as commutation and excitation gap.