The main role of automotive PTC heaters
As a new type of thermistor material, automotive PTC heater can be divided into switching and heating. PTC material has the characteristics of heat sensitivity, current limit, delay and other switching characteristics and no contact, no noise, long service life, and can be used in refrigerator starting, motor transformer protection, program control interchanger protection, mosquito repellent, curling hair iron, electric iron and other small household appliances. Using the characteristics of heating PTC effect consolidation, fast heating and low impact of power supply voltage bumps, various heater products have become the aspiring replacement of metal resistance wire fever materials. At present, it has been widely used in heaters, dryers, air curtains, air conditioners, etc.
Automotive PTC heater adopts PTCR thermal ceramic element, which is composed of geometric monolithic combination and bonded with corrugated heat dissipation aluminum strip at high temperature, which has the significant effect of small thermal resistance and high heat exchange obedience. Its main feature is that when the fan fails to infarct, the PTC heater will automatically drop sharply due to the lack of heat dissipation. At this time, the surface temperature of the heater is continuously limited to the indoor temperature (220 °C), so as to avoid the blood-colored signs on the surface of the electric heating tube heater and eliminate the hidden danger of chaos.
PTC heaters are internationally popular high-quality, long-life electric heating equipment. It is often used for heating and gentle heating of liquid and gas media. The heating medium passes through the electric heater heating chamber under the benefit of pressure, and accepts the hydrodynamic principle to symmetrically take away the huge heat generated during the operation of the electric heating element, so that the temperature of the heated medium reaches the user's process requirements.
PTC heaters are the process of converting electrical energy into heat. Since the discovery of the thermal effect of power sources through wires, many discoverers in the world have been engaged in the research and production of various electric heating appliances. The development and spread of electric heating is the same as other industries, following the law from excellent countries to countries around the world, from cities to tunzi, from collective use to families, to one-sided, products from low-grade to low-grade.
