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What is the difference between a heatsink and a fan?

What is the difference between a heatsink and a fan?

2024-04-09

Heatsink is a device used to dissipate heat, mainly used to dissipate the heat generated in electronic equipment or mechanical equipment. Common radiators include:
Air-cooled radiator: A fan blows air across the surface of the radiator to dissipate heat.
Water-cooled radiator: Dissipates heat through water cooling, with high efficiency and low noise, and is suitable for heat dissipation of high-power equipment.
Heat Sink: Usually used on the surface of the radiator to increase the heat dissipation area and improve the heat dissipation effect.
Fan Heatsink: A smaller fan, usually used in conjunction with other radiators to enhance heat dissipation.
Heat pipe radiator: Utilizes the heat conduction characteristics of the heat pipe to conduct heat to the heat sink, and then dissipates heat through the fan.
High-Quality-Wholesale-heatsink-for-led
Radiators and fans are both devices used to dissipate heat, but their functions and working principles are different.
 
A radiator is a passive cooling device that lowers the temperature of a device by dissipating heat. This passively heat sink is usually made of metal, such as aluminum or copper, which has good heat transfer properties. When the device is working, the radiator absorbs the heat generated by the device and conducts the heat to the air through structures such as cooling fins to achieve heat dissipation.
 
The fan is an active heat dissipation device that generates wind force by rotating blades to force air flow, thereby accelerating the transfer of heat. Fans are usually used in conjunction with radiators to transfer heat absorbed by the radiator to the surrounding air. Fans come in different models and sizes, and some are equipped with variable speed adjustments that automatically adjust based on the temperature and load of the device.
 
Radiators are suitable for applications that require low noise and energy saving, while fans are suitable for applications that require higher heat dissipation and rapid cooling. When selecting a cooling device, you need to choose the appropriate radiator or fan based on the needs of the device and environmental conditions.
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