What is the problem that the cooling fan is not awesome? An ineffective cooling fan can seriously affect the cooling effect of the equipment, which in turn may lead to reduced performance, shorter lifespan or even damage to the equipment.
Cooling fans usually require a stable voltage to operate properly. If the supply voltage is too low, the fan motor cannot get enough power and the speed will be reduced. In some older circuit systems, the simultaneous use of multiple high-power appliances may result in a drop in voltage, slowing down the speed of the cooling fan.
Broken power cords and poor contact can affect the transmission of current. When the power cord is pinched and frayed, the wires inside may break or partially make contact, causing the fan to receive less current and thus fail to reach its normal speed.
The fan motor is the core component that drives the fan blades to rotate. After a long period of use, the coils inside the motor will deteriorate and the magnetism will weaken, leading to a reduction in the motor’s rotational efficiency. Performance will gradually decline the same way, cooling fan motor will also be used with the increase in time and aging, making the fan speed slower.
Bearings are the key component that supports the fan’s rotating shaft, and if the bearings are badly worn, it will increase the resistance of the rotating shaft to turn. Imagine a bicycle with rusted and worn wheel bearings that become hard to turn. When the bearings of a cooling fan are worn out, the fan blades will also become hard to turn, resulting in a decrease in fan speed.
Cooling fans are usually used in conjunction with cooling fins, which are designed to increase the area of heat dissipation and help spread the heat. If the cooling fins are blocked by dust, hair, etc., it will affect the conduction and distribution of heat, making the cooling fan unable to effectively discharge the heat even at high speeds, giving the impression that the fan is not powerful.
The narrow cooling space of the device will affect the circulation of air. Computer host placed in a closed cabinet, there is not enough space around the air in and out of the cooling fan to inhale the air temperature is higher, the hot air can not be discharged in time to diffuse, resulting in poor heat dissipation, the fan appears to be running, but in fact, can not effectively reduce the temperature of the equipment.
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