When heat is transferred to the top of the radiator, it is necessary to dissipate the heat to the surrounding environment as soon as possible. For the air-cooled radiator, it is necessary to exchange heat with the surrounding air. At this time, the heat is transferred between two different media, and the formula according to it is Q=αXAXΔT, where ΔT is the temperature difference between the two media, that is, the temperature difference between the heat sink and the ambient air; and α is the thermal conductivity of the fluid. After the heat sink material and air composition are determined, the computer heat sink is a fixed value; the more important A is the contact area between the heat sink and the air. Under the premise of other conditions, the volume of the heat sink is generally There are restrictions, the space inside the chassis is limited, and it is more difficult to increase the installation. By changing the shape of the heat sink, increasing the contact area with the air and increasing the heat exchange area, it is an effective means to improve the heat dissipation efficiency. To achieve this, the surface area is generally increased by using a fin design with surface roughening or threads.

When heat is transferred to the air, the temperature of the air in contact with the heat sink of the computer will rise rapidly. At this time, the hot air should be taken away from the surrounding cold air by convection and other heat exchange methods, and the air is cooled. For radiators, the main method is to increase the speed of air flow and use a fan to achieve forced convection. This is mainly related to the design of the fan and the wind speed. The performance of the radiator fan (such as flow rate and wind pressure) depends mainly on the fan blade diameter, axial length, fan speed and blade shape. The fan flow is mostly in CFM (inch, cubic feet per minute) and a CFM is approximately 0.028 mm3/minute.

Dongguan Xunwang Hardware Products Factory specializes in: metal stamping parts, computer heat sink processing, circuit breaker special motor, molded case circuit breaker, circuit breaker energy storage motor, circuit breaker motor, is a professional Dongguan motor production factory. Tel: 0769-86958478 Mr. Wang. Welcome all merchants to call to discuss cooperation!