As the most essential product in summer, fans can be used for more than 5 months a year for people in some countries. It can be said that this is an important electrical appliance in daily life. A small fan that occupies a small area, but through the flow of air, the entire space can be cooled down. There are many BLDC fans on the market now. Do you know what a BLDC fan is? And when choosing, should we choose a brushless DC fan or a regular fan? Let me explain to you what a brushless DC fan is and how to choose a fan product.
DC brushless fan is actually a difference in the motor part. A fan is composed of a rotor and a stator. When the rotor rotates, it represents the rotation of the fan, which creates the flow of airflow throughout the space and brings cool air. The electronic rotor of a regular fan rotates through electricity. And the rotor part of the brushless DC motor is specially made. The rotor of a brushless DC motor is equipped with magnetic plates. When we add current to the fan, there is an electromagnetic reaction between the electricity and the magnetic plates on the rotor. The rotor will automatically start rotating through electromagnetic reactions. So that's why it's said that brushless DC motors are more energy-efficient than regular fans.
Secondly, the brushless operation of brushless DC electronics is achieved through electronic control. Brushless DC fan with strict and precise electronic control board, achieving intelligent electronic control. The brushless DC motor detects the position of the rotor through an electronic controller and position sensor, and switches the direction of the stator module current to achieve brushless operation. Greatly improved the efficiency of conversion.
The above is about the difference between DC motor fans and ordinary fans.
How to choose a suitable fan for our own use, we actually need to consider several aspects, such as the motor, function, noise, air volume, and after-sales service of the fan.
Motor:
Fan motor is the soul of a fan. We just mentioned that fan motors are mainly divided into DC motors and AC motors. Due to its structure and principle, the service life of DC motors can reach 10000-50000 hours or more. Compared to AC motors, AC motors are much inferior. At the same time, BLDC adopts electronic commutation and permanent magnet rotors, with mechanical friction losses and rated efficiency often ≥ 85% or 90%. Traditional AC induction motors suffer from slip loss and iron loss, resulting in lower efficiency. Under the same output, the power consumption of BLDC can be only 1/2 or even 1/5 of that of AC motor, which greatly reduces power consumption after long-term use and can also reduce our electricity bill significantly.
Function:
As the DC motor fan is controlled by an electronic program, it can achieve stepless speed regulation. Fans can be set to multiple levels for customers to use, ranging from gentle to strong winds. Customers can choose the one that suits them in multiple wind speeds. However, AC motor fans are generally three speed fans with few options. Sometimes I may only want a gentle breeze, but choosing the weakest wind is also a high wind speed. And the DC motor fan can achieve intelligent shaking, memory function, and timed mode. For example, NAKKA 18 inch smart stand fan has 6 wind speeds, 9-hour timer, sleep mode, natural wind mode, power-off memory function, and more. If you have higher requirements, we can also provide mobile intelligent control and voice control. Intelligent control can be viewed in this news introduction: https://www.nakka.net/newsinfo-nakka-smart-bldc-fan-free-your-hands-with-rf-remote-voice-app-control.html
Noise:
If the fan is used in special environments such as schools, conference rooms, offices, bedrooms, churches, etc. So this will have extremely high requirements for the volume of the fan. Regarding to the NAKKA low noise fan, due to it is a fully sealed motor, has reduced the noise in a physical sense. Secondly, our unique patented design of the grille and fan blades greatly reduces fan noise. For example, in the case of an 18 inch floor fan with the highest air volume, the volume of the fan is only 56dB.
Airflow:
The purpose of using a fan is to convert air and achieve cooling. And air volume will be a very important factor for everyone when choosing a fan. Many people want a fan with a very high air volume, but there are also some who think that I want a large air volume, but I also want the wind to blow comfortably. NAKKA 18 inch smart fan can meet this requirement for you. The 18 blade design allows the feather print fan to produce a spiral mesh like airflow. Instead of using different fan blades, blowing straight out can easily cause headaches. And the spiral wind will make you feel that the wind is surrounding you, giving you a feeling of wind all over your body and nearby. Moreover, the airflow of the feather print fan is not low, and the maximum airflow of an 18 inch floor fan can reach 169m ³/min.
After sales service:
In fact, after-sales service is also an important part of our product selection. NAKKA intelligent fan comes with a two-year warranty for the motor and a one-year warranty for other accessories. At the same time, when customers place customized orders, we will provide free accessories for after-sales service. Actually, our fan motors are very durable, and one motor can be used for 5 years without any problems. And the structure of our motor makes after-sales service more convenient. NAKKA motors are divided into drive, synchronous motor, internal motor, and wires. If any problems are found with the motor, we only need to replace these parts of the accessories. For example, if there is a problem with the fan shaking, we only need to replace the synchronous motor, which can reduce costs. If there is a problem with the AC motor, the entire motor needs to be replaced.
The above is our introduction to DC motors and AC motors, as well as how to choose a fan and what dimensions should be considered. If you have any questions about the electric fan, feel free to leave a message on our website and we are more than happy to answer them for you.
