The main ways to install battery heating for new energy vehicles include the following:
1. Preheating heating: Principle: By installing a water heater in an electric vehicle, heat is transferred to heat the battery pack, ensuring that it reaches the appropriate working temperature. Advantages: Water heaters come from a variety of fuel sources, including fuel, diesel, and formaldehyde, and have the characteristics of low fuel consumption and low noise. It can not only preheat the battery pack, but also provide heating services for the driver's cabin of electric vehicles, helping to reduce the energy consumption of electric vehicles, extend the service life of the battery pack, and save the cost of battery pack replacement.
2. PTC heating: Principle: PTC heater is an automatic constant temperature, energy-saving electric heater composed of heat dissipating aluminum sheet, aluminum tube, conductive sheet, insulation film, PTC heating element, nickel plated copper electrode terminal, and high-temperature plastic electrode sheath. After being powered on, the PTC thermistor heats up automatically, causing the resistance value to enter the transition zone. During constant temperature heating, the surface temperature of the PTC thermistor will remain constant, which is only related to the Curie temperature of the PTC thermistor and the applied voltage, and is basically independent of the ambient temperature. Advantages: PTC heaters have high heat dissipation efficiency, strong adhesion, excellent thermal conductivity and heat dissipation performance, high efficiency, and strong reliability. At the same time, it also has significant advantages such as low thermal resistance and high heat transfer efficiency.
3. Summary: There are two main ways to install battery heating in new energy vehicles: preheating heating and PTC heating. Preheating heating utilizes a water heater to heat the battery pack through heat transfer, suitable for multiple fuel types, and can provide heating services for the cab simultaneously. PTC heating is an automatic constant temperature, energy-saving electric heater that uses the characteristics of PTC thermistor to preheat the battery pack. It has the advantages of high efficiency, reliability, low thermal resistance, and high heat transfer efficiency.
Both of these methods have their own advantages, and car owners can choose the appropriate heating method based on their own needs and the actual situation of the vehicle.