May 06, 2021
What are the advantages of PTC electric heaters?
1. Self-constant temperature, more reliable
In recent years, heating wires have mostly used iron-chromium-aluminum alloys and nickel-chromium alloys. The maximum temperature of iron-chromium-aluminum alloys can reach 1400°C. Therefore, heating wires rely heavily on temperature control systems in use to prevent overheating and melting of air ducts. risk.
The ceramic PTC heating temperature of electric vehicle PTC heater is limited by the setting of Curie temperature, so it is more suitable for low-power low-temperature heating under 300℃. We can choose PTC chips (40℃~300℃) with a lower Curie temperature according to customer requirements.
2. New materials, healthier
The heating wire is accompanied by a light-emitting process in the heating process, which will cause a certain light consumption, oxygen consumption, and exhaust gas. The nickel-chromium alloy contains beryllium, which is carcinogenic. Nickel is also fatal and carcinogenic to the human body. For example, porcelain teeth (containing nickel) have kidney damage to the human body.
Our electric car PTC heater PTC products have no heat, no light, no open flame, no light, no oxygen consumption, no exhaust gas generation, and harmless to the human body.
3. Self-energy saving, more power saving
The electric heating conversion rate of the heating wire is low (about 60%-70%), and “PTC electric heating conversion efficiency is relatively high, reaching more than 99%, and there is almost no energy loss, so the thermal efficiency is greatly improved” (quoted from China Electronic News) Therefore, our electric car PTC heater saves more than 30% of electricity than ordinary heaters. In addition, PTC is affected by the external environment temperature and wind speed, and can independently adjust the heating power.
4.100000 hours, longer life
The heating wire generally undergoes surface oxidation treatment. Due to the uneven oxidation, it will become thinner locally, so that the resistance at this place will increase, the temperature will also increase, the oxidation will speed up, and the resistance will rise again, and the heating wire will soon be broken. . Life is over. According to statistics, the service life will end within 72 hours of working under the rated voltage and power.
And our low-speed electric vehicle PTC heater can work continuously for about 1,000 hours, and the service life of the PTC can reach more than 100,000 hours.
5. Insulation treatment, less affected by the external environment
The heating wire has high environmental requirements. Before installation, ferrite and carbon must be removed to prevent short circuits. During installation and transportation, if the components are damaged, their service life will be reduced. The heating wire will glow when it is heated, and the dust entering the heater position from the air-conditioning duct of the electric vehicle will cause fire and burn.
