How does a temperature control switch work?

Thread Content

How does a temperature control switch work? How does a temperature control switch work? How does it work then? Next, Changhong thermal protectors will share this with netizens. http://www.chrbhq.com/upload/image/20160726/20160726115601_2853.png Temperature control switches can be divided into two types at present: one is electronic. An electronic temperature control switch uses a thermistor or a thermodiode; when the ambient temperature changes abnormally, a normal resistor generates abnormal current, which leads to heat generation and a change in the resistance value of the thermistor. In other words, the temperature change is converted into an electrical signal that is sent to the circuit for amplification, thereby causing the contacts of the relay to open or close. Another type is mechanical. A mechanical temperature control switch consists of two metals with different coefficients of expansion pressed together; when the temperature changes, the side of the metal that expands more bends toward the side with the lower expansion rate, thereby causing the contacts to open or close. For more details, visit: www.chrbhq.com