What are the advantages of PTC heaters for new energy vehicles
Benefits of PTC heater
1. Self-constant temperature, more reliable.
In recent years, the heating wire mainly uses iron-chromium-aluminum alloy and nickel-chromium alloy, and its high temperature can reach 1400℃. Therefore, the heating wire is very dependent on the temperature control system in the application to prevent the air duct from being melted due to overheating.
However, the fever temperature of PTC electric fan ceramic PTC for electric vehicles is limited by the dwelling temperature, and it is suitable for low-power low-temperature heating platforms below 300°C. The Curie temperature of PTC film (40~300℃) can be selected according to user requirements.
2. New materials, healthier.
In the heating process, the heating of the electric heating wire is accompanied by the luminescence process, which produces inevitable light consumption and oxygen consumption, and emits exhaust gas. Nickel-chromium alloy contains beryllium, which is carcinogenic. In addition, nickel is also carcinogenic and carcinogenic to the human body. For example, porcelain teeth (containing nickel) are not beneficial to the kidneys.
In addition, the PTC heater PTC products for electric vehicles produced by our company do not emit light when there is a fever, no open flame, light 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%), while the PTC electric heating conversion compliance is relatively high, reaching more than 99%, and there is almost no energy loss, so the thermal compliance is greatly improved (quoted from China Electronics News), so Our electric vehicle PTC heaters have higher compliance than ordinary PTC electric heating conversion, and the thermal compliance is greatly improved (quoted from China Electronics News).
4. Working hours are 41,000 hours.
Generally speaking, the surface of the heating wire is oxidized, the oxidation is uneven, the heating wire part becomes thinner, the resistance rises, the temperature also rises, the oxidation speed increases, the resistance rises further, and the heating wire quickly breaks. Life has ended. According to statistics, under rated voltage and power, it has a lifespan within 72 hours of work.
However, the low-speed electric vehicle PTC heater produced by our company can work continuously for 1,000 hours, and the PTC application life can reach more than 100,000 hours.
5. Insulation measures are not affected by the outside world.
In order to prevent short circuits, the heating wire has very high requirements on the situation, and iron and silicon carbide need to be removed before installation. These parts are damaged during installation and transportation, and their application life will be reduced. The heating wire will glow when heated. Dust entering the heater from the air-conditioning duct of an electric vehicle can cause open flames and incineration.