Fan Types - Differentiated by drive power and shape

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The fans we encounter in our daily life vary according to the applications in which they are used. COOLING has a lineup with many types of fans. Let's see how they differ.

Distinguished by driving power

Let&#;s start with the differences in drive power. AC fans are powered by an alternating current (AC) power supply from an electrical outlet, and DC fans are powered by a direct current (DC) power supply. The speed of AC fans is fixed by the frequency of the AC power supply, while that of DC fans can be changed by the motor and the circuit.

Nowadays, DC fans, are the mainstream product, which are easier to control and available in many varieties.

There are also EC fans that can be powered not only by DC, but also by AC. EC fans have a mechanism of converting AC to DC power, and their working model is the same as that of DC fans while using AC power.

Distinguished by shape

Axial fans have always been the most commonly used type.

The axial fans have an impellor installed in the core of the frame, which draws in air and discharges it along the direction of the rotating shaft straightly. When you hear the word fan, This is probably what you think of it. Axial fans often appear in our daily life, with the characteristics of high airflow and low noise.

Axial fans include Counter Rotating Fans (in which the impellers of two axial fans are connected in series and rotate in contrary directions to provide high static pressure and improve the straightness of the airflow), Durability Fans (which can be used in extreme conditions, such as extremely hot or cold environments), and Reversible Flow Fans (the rotating direction of blades can be reversed to realize airflow in both directions). All of these can be selected to meet the needs of your device.

Unlike axial fans, Blowers and Centrifugal fans draw in air from the inlet side and discharge it after changing the airflow direction by 90 degrees.

Blowers and centrifugal fans are ideal for devices where there is not enough space to exhaust air in a straight direction from the appliance. Blowers, due to their high static pressure performance, are ideal for localized cooling applications where the air is blown in a precise manner and used for internal cooling of equipment with high-density of mounted components. Similarly, centrifugal fans are suitable for exhausting air from the inside of equipment with high mounting densities.

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Abstract: How to choose an electric fan? In addition to air conditioners in summer, the most frequently used electrical appliances are electric fans. At present, there are ceiling fans, table fans, stand fans, floor fans, wall fans and derivative products such as breeze ceiling fans and air-conditioning fans on the market. Each fan has different specifications. Consumers should decide which fan to buy according to the environment and purpose.

Types of electric fans

1. Stand fans. There are many kinds of electric fans today. The most popular one is the stand fan. Floor-standing fans are generally retractable and have high wind power, so they are loved by many friends. The advantages of floor-standing fans: low price, high wind power, lifting height, multiple gears, and various wind modes. Disadvantages: loud noise, large fan amplitude, concentrated strong wind.

2. Tower fan. Tower fan is the new type of fan today. Compared with traditional floor fans, ceiling fans and table fans, tower fans are relatively safer and more stable, and the noise is also lower. Advantages of tower fan: safe and stable, low noise, diverse wind types, wide range of soft wind, beautiful and generous. Disadvantages: expensive, not adjustable

3.Fortune fan. Fortune fan is one of the most traditional fans, and because of its different shape from other fans, it is remembered by many people. This fan is still popular today. The advantages of Fortune fan: low price, energy saving, safety and stability, low noise, soft wind, good durability, and good air circulation effect. Disadvantages: no lifting, low wind.

4. Cooling fan. Cooling fan is a new concept of current fan. It is a fan that integrates the concept of air conditioning cooling into the fan. The cooling fan means that there is a container for storing water in the fan, which can be used as a humidifier. At the same time, special ice crystals can be placed in to produce cold air, which greatly enhances the effect of the wind. Advantages of cooling fan: can be used as a humidifier, can produce cold air, safe and stable, wide range of wind, and many types of wind. Disadvantages: expensive and easy to breed bacteria.

5. Ceiling fan and wall fan. Ceiling fans and wall fans are relatively seldom used in many homes now, and more are used in public places such as schools, companies, factories and restaurants. But now with the use of air conditioners and even central air conditioners. Ceiling fans and wall fans have become less and less used.

Tips for buying fans

1. Purchase fans from energy saving. It is best to consider energy saving when purchasing a fan. Especially in the dormitory, due to the restrictions on electricity use, it is necessary to carefully consider the fan power and electricity use. At the same time, it is also necessary to buy more energy-saving fans if there is little difference in other performance when purchasing fans.

2. Choose a fan from the strength of the wind. First, consider the room temperature. If the room temperature is more suitable under natural wind, you can choose a fan that is relatively gentle and spreads wider than the wind. Instead, choose strong wind or cold fans. Second, from the perspective of human constitution. If you are afraid of heat, you can choose a relatively strong wind or a cold fan. On the contrary, you can choose a fan with relatively gentle wind. 

3. Choose the fan from the price. When buying a fan, in addition to the brand's influence on the price of the fan, the type of fan also has a certain influence on the price of the fan.

4. Consider from the crowd. If there are a lot of middle-aged and elderly people and children under the age of 10, it is recommended to use a fan with relatively soft wind and low noise. If there are many young people at home, a fan with strong wind is more suitable.

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