Cooling fan is a kind of equipment to ensure the normal operation of the equipment through the form of heat dissipation, which allows the heat inside the equipment to be emitted to keep its internal temperature within the normal range. The main components inside the cooling fan include fan blades, motor, bearings, heat sinks and so on.

Fan blades are the core components of a cooling fan, and their function is to draw air in and push it to flow, thus dissipating heat. The number and shape of the fan blades affect the air volume and pressure of the cooling fan, which in turn affects the cooling effect.

The motor is the driving part of the cooling fan, which converts electrical energy into mechanical energy and drives the fan blades to rotate. The type and performance of the motor will affect the speed and stability of the cooling fan, which in turn affects the cooling effect.

The bearing is the support part of the cooling fan, its role is to support the fan blades and motor, and reduce friction and noise. The type and performance of the bearing will affect the life and stability of the cooling fan. Generally speaking, ball bearings are more reliable and have a longer life than oil bearings.

The heat sink is the cooling component of the cooling fan, and its function is to transfer heat to the air to dissipate heat. The size and number of fins will affect the cooling effect of the cooling fan. Generally speaking, the larger the fins are and the more they are, the better the cooling effect will be.

The working principle of the cooling fan is to drive the fan blades to rotate through the motor, which will suck in the air and push it to flow, so as to achieve heat dissipation. The cooling performance of a cooling fan is mainly determined by the number of fan blades, the type of motor, the type of bearing, the size and number of fins and other factors.

The application of cooling fans is very wide, such as computers, servers, cars, home appliances and other equipment need to use cooling fans to ensure the normal operation of the equipment. Proper use of cooling fans and frequent maintenance can extend their life.