The scorching heat, may not have to hate "palm leaf fan" wind cooling. At this time. Everyone on the computer in a variety of fan's attention is also rising. With the CPU/GPU and chipset performance is on the rise. Better heat dissipation becomes the basic guarantee stable operation of high performance chip. Compared with the cost of higher prices and heat pipe, liquid cooled, semiconductor refrigeration and other passive cooling method. The active radiator cooling fan is cheaper, more convenient installation. So the application of the most extensive. The cooling fan is not exist alone. Most applications will be used in conjunction with the heat sink. From the purpose of view.

Cooling fan is CPU fan, graphics card cooling fan, notebook cooling fan, the North (South) bridge radiator fan, chassis cooling fan, cooling fan, power supply fan drive etc.. The basic structure of radiating fan generally consists of motor, bearings, blades, housing (including fixed hole), the power supply plug and wire several parts. Motor is the core of radiating fan. Generally consists of two main components of stator, rotor. The stationary part of the motor run called stator. Running the part called the rotor. DC motor speed way pressure regulating speed and frequency speed regulation of two. The latter is the mainstream of the current application. Can well realize the fan speed control on demand. And the temperature control fan can by installing a thermistor in the PCB board. Induction temperature change and speed, the higher the temperature of fan speed more quickly. However, the heat radiating fan blade why are all singular? This is because of the need to maintain the fan running balance and impact as possible reduce the resonance caused by. Singular fan is the best choice. In the mold which is difficult to achieve the dual fan blade symmetric equilibrium. So for the fans, not in pairs is a good thing; "a good thing not are pairing".

In the fan's choice, we tend to compare wind pressure and wind pressure and wind, for normal ventilation. To overcome the cooling fan ventilation within the travel resistance, heat radiation fan must overcome air resistance pressure. This is the wind. Pressure is an important index to measure the performance of heat radiation fan. Pressure depends mainly on the fan blade shape, area, height and speed, higher speed, the greater the fan leaf. The wind pressure is relatively larger, fin duct type design can better maintain the wind pressure of the fan. Volume is the total air volume air cooling fan out or sucking people per minute. In the case of heat sink material under the same air, is the most important index to measure the heat capacity of air-cooled radiator. The greater the fan. Air volume is more big, big air quantity in unit time can take in more calories. If the essential dynamic volume compared to a weapon. Then the wind pressure is the sharpness of the weapon. The other conditions remain unchanged. The actual air flow plays a decisive role in radiating effect of the fan. Cooling fan aluminum fins to the wind pressure higher requirements. The copper fin requires large air volume. Fin more dense. The higher requirements on wind pressure. Otherwise the flow will air in the fins is not smooth.

In the design, the design of cooling fan in addition to universal design in front of about. There are also some cooling fan with some very special design. Through the application of newer technologies and processes. To better meet the needs of users. Cooling fan in the dust, long-term use of various parts of airflow through the will of a layer of dust covered with thick. Lead to airflow is not smooth. Increased leaf weight. Reduce speed or increase the electrical load. Even the fan damage. To this end. Some cooling fan manufacturers in the dust also out of tricks. For example, the market some manufacturers will "dust-proof net" fan installed on the outside. But it must be cleaned regularly, otherwise the dust-proof net blockage will cause heat unnecessary trouble. There are some products launched a dustproof design the so-called new, located near the fouling shaft is changed into the closed shape, at the same time optimization into the wind, let the dust, no place to hide. Can improve the service life of the fan greatly, use more at ease.

In short, the heat radiating fan in all computer accessories belongs to a class of humble. But necessary. Cooling fan good a performance can well satisfy the cooling demand of computer hardware. As a protector of the stable operation of the computer. A cooling fan to strong performance. Need a fan overall in dealing with all the details have to be just perfect. In order to play the best performance. Large air flow cooling fan. Pressure will sacrifice. The wind pressure. Air volume will drop. Fan speed and the cooling capacity and are not necessarily related to. Fan speed higher but will bring more noise. When the speed reaches the limit, to increase the volume, only to change the fan blade angle or the blade fan leaf number increased, proportional to the wind. But fan blade number is not the more the better, according to the wind pressure needs to consider, leaf blade air high at the same time, the fan noise come very naturally will increase.