A temperature-controlled cooling fan, as the name suggests, uses temperature to control the cooling fan. The principle is that it senses the rise in temperature around the cooling fan and thus increases the speed of the cooling fan colleague increases the flow of air (airflow) and is based on the use of a thermistor to detect the temperature, a sensor mounted on the hub of the cooling fan detects the temperature passing through the cooling fan, in such a configuration the fan must be fully installed. Once installed, the thermistor sensor can be sensed via a special connection cable.
The speed of the temperature-controlled cooling fan varies according to the temperature, and when the fan is running at a slower speed, it produces only low noise and low power consumption.
Of course when we choose to use a temperature controlled cooling fan we need to pay attention to.
1, the temperature-controlled cooling fan chosen must be able to provide sufficient speed to cool the hot air inside the device at high temperatures, when the temperature of the hot air is lower or when the hot air flow is less the fan is doing reverse work.
2, in the installation of the inductor to ensure that it can be placed in the appropriate position, as far as possible so that the inductor can be directly clamped on the surface to be cooled, in operation if the heating temperature is high, the regulator will feel the temperature-controlled cooling fan in accelerated operation. At lower temperatures the fan speed will hardly change, the response time depends on the length of the sensor and its thermal sensitivity.
