Electric Vehicle PTC Coolant Heater
What is a electric vehicle PTC coolant heater?
PTC electric heater, PTC is the abbreviation of Positive Temperature Coefficient, which means a positive temperature coefficient, and generally refers to semiconductor materials or components with a large positive temperature coefficient. Usually the PTC we refer to refers to the positive temperature coefficient thermistor, referred to as PTC thermistor. PTC thermistor is a typical temperature-sensitive semiconductor resistor. When it exceeds a certain temperature (Curie temperature), its resistance The value increases stepwise with the increase of temperature.
New energy vehicle PTC water heater is a device that uses PTC heating elements to heat vehicle coolant. Its main function is to provide heat to the vehicle in a low-temperature environment, so that key components such as the engine, motor and battery can operate normally.
The PTC heating element is a self-recovery thermistor element, which has the characteristics of high efficiency, stability and reliability. When the current passes through the PTC heating element, a thermal effect will be generated, which will increase the surface temperature of the element and achieve the purpose of heating the coolant. Compared with traditional electric heaters, PTC water heaters have the advantages of power self-regulation and temperature stability.
In a low temperature environment, the PTC water heater adjusts the heating power and temperature by controlling the magnitude of the current to keep the vehicle's coolant within a suitable temperature range and ensure the normal operation of key components such as the engine, motor and battery. At the same time, the PTC water heater has high heating efficiency, which can heat the coolant to an appropriate temperature in a short period of time, shorten the warm-up time of the vehicle, and improve driving comfort and safety.
Features of PTC coolant heater
1
Power
1. Almost 100% heat output
2. Heat output independent of coolant medium temperature and operating voltage
2
Safety
1. Three-dimensional safety concept
2.Compliance with international vehicle standards
3
Efficiency
1. Rapid performance, heating quickly
2. Direct, fast heat transfer, high energy efficiency
4
Precision
1. Seamlessly, quickly and precisely controllable
2. No inrush current or peak current
Structure of PTC coolant heater
Electric coolant heaters is a kind of heater that heats the cockpit of electric car. Its main function is to provide heat to the cockpit of electric car, so that the cockpit is at the right temperature and the driver and passengers can fully enjoy the comfort brought by the electric car.
The electric car PTC coolant heater mainly heats the air conditioning system of the electric car. In summer when the temperature is high, the air conditioning system will lower the temperature of the cockpit and the battery pack.
In winter when the temperature is low, the heater can provide heat for the cockpit and battery pack through the air conditioning system to keep the cockpit and battery pack at the right temperature.
Function of PTC Coolant Heaters
The principal function of a PTC coolant heater is to heat the coolant, generally a mix of water and antifreeze, which then circulates through the vehicle system. The heated coolant plays two pivotal roles in an electric vehicle.
First, it can be transferred to the battery, enabling it to reach the optimal charging temperature before a charging cycle begins. This temperature regulation is critical in prolonging the battery’s lifespan and optimizing its performance.
Second, the temperature of the coolant can be transferred to the heater core, which subsequently heats the cabin air, providing a warm and comfortable environment for the passengers.
Application of PTC coolant heater
Vehicle level: NEV (BEV, PHEV, FCEV)
• Pure electric, plug-in hybrid power battery insulation and heating, air conditioning heater
• Rapid preheating of hydrogen reactors for hydrogen energy
System level: TMS, heat pump system
• Integrated into B/TMS to provide fast and precise control of the heat source to the system
• Works with heat pump systems to provide precise temperature compensation and control
PTC liquid heaters are mainly used in new energy vehicle power battery heating and automotive air conditioning heating. Compared with the traditional automotive thermal management system, the difference between the new energy vehicle thermal management system and it:
Therefore, compared with traditional vehicles, the thermal management system of new energy vehicles adds electronic water pumps, electric compressors, electronic expansion valves or four-way valves, cooling plates and heating systems (heat pumps or PTC systems), etc.
With the rapid development of the electric vehicle industry, thermal management systems, especially heaters, are receiving more and more attention. The advantages that PTC electric heaters offer in terms of safety, energy efficiency and compatibility make them the best choice for any manufacturer of high-end electric vehicles. The aim is not only to increase the performance of the vehicle, but also to provide a better, more comfortable and reliable experience for the end user.
In the highly competitive field of heating equipment manufacturers, NF Group stands out with cutting-edge innovation, superior quality and an unwavering commitment to reliability. NF Group is known for continuous technological advancements and has always been at the forefront of PTC coolant heaters.
In short, deciding what type of heater to use in an electric vehicle is crucial. Your choices not only affect vehicle performance, safety and efficiency, but also improve the experience you offer your customers. By choosing a PTC coolant heater, you are choosing a self-regulating, safe and efficient path.
When you choose NF Group as your partner on this journey, you get reliable, high-quality and durable products that are proven to meet the demands of the rapidly growing electric vehicle market. With NF Group, you are taking an important step in building the future of the electric vehicle industry, an industry that promises a safe, efficient and green future.
