Working principle of solid electric heating cake
- Sep 19, 2017 -

Solid electric heating cake, its fill is the insulation cotton (such as; asbestos and other work principle is: the use of double temperature electric energy storage structure, gradually releasing heat energy. Built-in automatic overheat protection device and automatic thermal insulation indicating device, a small electric furnace controlled by PTC thermistor switch, PTC is a thermistor with positive temperature coefficient, When the current through itself will be hot (the heat of the furnace will also be conductive to it), when the temperature reaches a certain value, its resistance will be sharply increased, can be regarded as disconnection, so hot at this time stop consumption of electricity, and then rely on insulation cotton to the electric furnace insulation to slowly exothermic.