Fan Solutions
Different sizes of fans, have different air volume and pressure, of course noise is also a factor to consider, we have a variety of standard specifications of fans for you to choose.
In the whole cooling system, there is a very important factor is the fan. Under the condition of input current, the fan is driven by the blade to produce air volume and wind pressure, so as to achieve the effect of taking away the air on the surface of the heat sink, so as to dissipate the heat.
The main performance of the fan is reflected in the following aspects: speed, blade shape, blade Angle and bearing system. In general, the speed of the fan is indicated on the radiator instruction manual. Generally speaking, the heat dissipation effect of the radiator is 30% depends on the speed of the fan. But the higher the fan speed, the better. The correct fan speed should be determined according to the caloric value of the CPU. The selection of fan speed of different specifications should be distinguished. The basic principle is that: under the premise of producing the same air volume, the greater the fan speed should be lower, and the noise will be smaller.The greater the power, the stronger the fan wind, the better the heat dissipation effect. The power of the fan is directly related to the speed of the fan, that is to say, the higher the speed of the fan.In order to provide customers with one-stop service and systematic refrigeration solutions, we have very close cooperation with well-known fan manufacturers, such as Sanyo, Delta, AVC and other well-known fan manufacturers, they can modify and design some parameters required by customers according to our specifications, so as to achieve the final design effect.
In general, the speed of DC fans and AC fans is not the same because of their different design and control.
The DC fan is usually driven by a motor. The speed control is flexible. The speed of the DC fan can be changed by adjusting the voltage or current, or the PWM (pulse width modulation) controller can be used to achieve different speed. However, some advanced AC fans can use special controllers for variable speeds, but these are usually more expensive. The speed of a DC fan can also be affected by its power supply voltage, the load of the motor, the number and length of blades, and the shape of blades. In contrast, AC fans typically use AC power, and their speed is usually determined by the design and manufacture of their motor. The frequency and voltage provided by the AC power directly affect the speed of the AC fan. Generally, you cannot directly control the speed of the AC fan by changing the voltage or frequency of the power supply. If you want to adjust the speed of the AC fan, you need to use a special speed regulating device, such as frequency converter or speed regulating motor. The frequency converter can adjust the speed of the AC fan by changing the frequency of the AC power supply. This is done by converting AC power to DC power and then using an AC motor converter to convert the current into AC power at a specific frequency. This method requires the use of additional speed regulating devices and circuits, and the cost is relatively high
Industrial cooling fans usually have two modes: suction mode and blow mode.
The blower fan blows air out of the fan outlet and can be used to accelerate the cooling of the surface of the object or dry the surface of the wet object. Such fans are usually placed in areas where wind is needed, such as workshops, factories, warehouses, etc. The suction fan mainly sucks in the surrounding air, and then exhausts it after heat dissipation by the heat sinks, which plays the role of reducing the temperature of the machine. The fan is usually placed at the back or side of the machine to draw in hot air and keep the machine at its normal operating temperature.
We have compiled the product specifications of some well-known manufacturers for the reference of electronic engineers. You can download these specifications:
The importance of fans in the cooling industry cannot
be overstated.
Whether it’s electronic devices, computers, or industrial equipment, they generate a significant amount of heat during
operation. If this heat is not effectively dissipated, it can lead to overheating, affecting the performance and lifespan
of the devices.
Here are several key roles of fans in the cooling industry:
Heat dissipation: Fans accelerate the airflow, drawing in cool air from the surroundings and expelling hot air from the devices.
This convective heat transfer process effectively lowers the temperature of the devices, keeping them within a safe operating range.
Assist cooling fins: Many cooling systems use cooling fins to increase the heat dissipation surface area, improving the cooling
efficiency. Fans are often installed near the cooling fins to enhance heat transfer by increasing the contact area between the
heat and the air.
Air circulation: Fans help maintain air circulation inside the devices, preventing the accumulation of hot air. By bringing in fresh
air and expelling hot air, fans contribute to the freshness of the internal air, reducing humidity and the buildup of pollutants.
Air cooling solutions: Fans are commonly combined with other cooling components like heat sinks and heat pipes to form air
cooling solutions. In many cases, air cooling is a simple, cost-effective, and efficient method widely used in personal computers,
gaming consoles, servers, and other electronic devices.
In summary, the importance of fans in the cooling industry cannot be underestimated. They effectively reduce device temperature
by promoting airflow, increasing heat dissipation surface area, and maintaining air circulation, ensuring the proper functioning
and reliability of the devices.
The importance of wind tunnel wind pressure testing instruments
for fans can be explained in several aspects:
Performance evaluation: Wind tunnel wind pressure testing instruments are used to assess the performance of fans. By simulating real
working conditions in a controlled environment, the instruments can measure the output of the fan under different wind speeds and
pressures. Such testing provides information about the airflow, velocity, noise levels, and energy efficiency of the fan. Based on this
data, manufacturers can make improvements and optimizations to the fan design.
Design validation: Wind tunnel wind pressure testing instruments are also used to validate the design of fans. By conducting tests in
a wind tunnel, different working conditions and environments, such as air conditioning systems, radiators, and air-cooled electronic
devices, can be simulated. This helps verify whether the fan’s performance meets the design requirements and detects any potential
issues or shortcomings.
Research and innovation: Wind tunnel wind pressure testing instruments are crucial tools for fan manufacturers and research teams
to drive innovation and research. By using wind tunnel testing, different design concepts, materials, and constructions can be evaluated
to determine the optimal solutions. Additionally, wind tunnels can aid in the development of new fan technologies, such as brushless
DC motors and turbine fans.
Quality control: Wind tunnel wind pressure testing instruments also play a vital role in the production process of fans. By conducting
wind tunnel tests on each production batch of fans, the quality of the products can be ensured to meet standards and specifications.
This helps detect any issues during the manufacturing process, such as faulty assembly, uneven blade quality, or other manufacturing
defects.
