Temperature control cooling fan is a kind of intelligent fan, take our double ball bearing exhaust fan as an example, its built-in temperature sensing element, can automatically adjust the speed and rotation of the fan according to changes in ambient temperature. So, how exactly does this amazing temperature sensor work? Here is a brief introduction for you.

Temperature sensing elements usually use thermistors, thermocouples or thermistor capacitors and other devices. Taking a thermistor as an example, it is a resistance composed of a special material, and its resistance value changes with the increase or decrease of temperature. When the ambient temperature increases, the resistance value of the thermistor will decrease. When the ambient temperature decreases, the resistance value will increase.

When the temperature sensing element is placed in a key location of a c, such as a radiator or inside the case. When the ambient temperature rises and exceeds the preset temperature threshold, the temperature sensing element senses the temperature change and then transmits the signal to the fan control circuit.

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