AC Dual Ball Bearing Fan

Hongke brand AC 80*80*25 small axial flow fan is a high-quality product of all-copper core motor. It is small in size and has a long service life. It can realize the exchange of cold and hot air flow of various equipment. The product has the advantages of low noise and high efficiency. Our fans are especially suitable for ventilation, heat dissipation, air conditioning, refrigeration and other industries.

Product Specification:

Size：80mm×80mm×25mm

Housing：PBT Thermoplastic Black，UL94V-0

Material：Sheet steel、PBT+30GF UL94V-0

Termianls：0.5mm

Lead Wire：AWG#22 UL 1007（Optional）

Operation：-10℃ ~+65℃

Approvals：CCC、CE

What is the difference between an AC fan and a DC fan?

There are three differences between AC fans and DC fans:

1. Working principle:

The working principle of the DC cooling fan: through DC voltage and electromagnetic induction, electrical energy is converted into machinery to drive the fan blade to rotate, and the coil and IC are constantly switched, and the induction magnetic ring drives the fan blade to rotate.

Working principle of AC fan: Driven by AC power supply, the voltage will alternate positive and negative, and it does not rely on circuit control to generate a magnetic field. The frequency of the power supply is fixed, and the changing speed of the magnetic pole generated by the silicon steel sheet is determined by the frequency of the power supply. However, the frequency can not be too fast, too fast will cause difficulty in starting.

2. Structural composition:

The rotor of the DC cooling fan includes the DC cooling fan blade, which is the source of air flow, the fan axis, which is used to support the rotation of the balanced fan blade, the rotor magnetic ring, the permanent magnet, the key to promote the switching speed of the magnetic stage, the outer frame of the magnetic ring, Fixed magnetic ring. In addition, it also includes supporting springs, through which the nodules are fixed to rotate the entire part, the motor part, the production of the direction of rotation, and the speed of the active size and rotation are critical. It has good speed regulation performance and simple control.

The internal structure of the AC fan (single-phase) is composed of two coil windings, one is the starting winding, and the two windings are connected in series with each other, thus forming three points, the series point is the common terminal, and the end of the starting winding is the starting terminal. The end of the winding is the running end. In addition, a starting capacitor is needed, usually with a capacity of between 12uf and a withstand voltage of 250v. There are two connectors, one is connected to the end of the starting winding, and the other is connected to the end of the running winding, forming a delta type, The power supply (no need to distinguish between the live wire and the neutral wire) is connected to the end of the running winding (that is, it is also connected to one end of the capacitor), the other is connected to the common terminal, and the ground wire is connected to the motor casing.

3. Material characteristics:

Material of DC cooling fan: It is made of alloy material, and its service life can be continuously used for more than 50,000 hours. The internal structure of DC has a transformer and main control board (including frequency conversion circuit, rectification filter, amplifier circuit, etc.), which will not be affected by voltage fluctuations. Long service life.

The internal structure of AC fans is mainly based on transformers. Most of the materials used for AC fans are made of domestic discharge needles, generally tungsten needles or stainless steel materials. If the voltage fluctuates too much, it will affect the service life of the transformer. To learn more about cooling fans, find Chuneng Motor, a company specializing in the production and processing of cooling fans, axial fans, blowers, cross-flow fans, fan grilles and other products. Learn more about Alibaba Search Store

http://www.hongkefans.com/