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High-voltage PTC water heater delivers rapid, energy-efficient heating—perfect as a winter warmth switch for all-electric vehicles.
Release time:
2025-07-15
In the cold winter months, owners of pure electric vehicles often face a common challenge: heating inside the car. Unlike gasoline-powered vehicles, which can use the engine's residual heat to warm the cabin, pure electric cars rely on additional heating systems. Unfortunately, conventional heating methods either suffer from low efficiency or consume excessive energy, significantly impacting the vehicle's driving range. So, is there a solution that can deliver rapid heating while also managing energy consumption effectively? The answer lies in the high-voltage PTC water heater.
In the cold winter months, owners of pure electric vehicles often face a common challenge: heating inside the car. Unlike gasoline-powered vehicles, which can use the engine's residual heat to warm the cabin, pure electric cars rely on separate heating systems. Unfortunately, conventional heating methods either suffer from low efficiency or consume excessive energy, significantly impacting the vehicle's driving range. So, is there a solution that can deliver rapid heating while also managing energy consumption effectively? The answer lies in the high-voltage PTC water heater.
PTC stands for Positive Temperature Coefficient, referring to a positive temperature coefficient thermistor. A high-voltage PTC water heater leverages the unique properties of the PTC thermistor: powered by high voltage, it efficiently converts electrical energy into heat, thereby warming the coolant fluid. The operating principle of the PTC water heater is based on the thermistor's characteristic of increasing resistance as its temperature rises. When current flows through the PTC thermistor, it generates heat. As the temperature climbs, the resistance grows even higher, causing the current to drop—this self-regulating mechanism not only ensures safety but also enhances energy efficiency.
In new-energy pure-electric vehicles, the high voltage output from the vehicle battery is routed to the PTC heater. As electric current passes through the PTC thermistor element, it rapidly generates heat, which in turn warms up the coolant flowing through the system. This heated coolant is then pumped by a water pump, passing through a water filter before being delivered to the vehicle’s cabin heater core. At this point, the cabin heater fan kicks in, blowing the warm air from the heater core into the passenger compartment, quickly raising the interior temperature. Meanwhile, some of the heated coolant may also be directed to preheat the battery pack, ensuring that the battery maintains optimal performance even in cold-weather conditions.
Yusheng Technology independently develops and manufactures various models of PTC heaters. 6KW PTC Heater ， 20KW PTC Heater ， 25KW PTC Heater ), widely used in new energy commercial vehicles, fuel cells, and other fields. If you happen to have any PTC heater-related needs, Zhengzhou Yusheng Technology is undoubtedly a reliable choice for you. Yusheng Technology also develops and manufactures Low-Temperature Thermal Management System , providing battery thermal management system solutions to address the reduced low-temperature performance of new-energy vehicle batteries in winter.
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