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Hebei Nanfeng Automobile Equipment (Group) Co.,Ltd
Phone: +86 18811334770
Tel: +86 0317 8620396
Tel: +86 010 58673556
Candy Jiao
E-mail: nh.jiao@auto-parkingheater.com
Email: nh.li@auto-parkingheater.com
Add: Room 505, Building B, Free Town Center, No.58, East Third Ring South Road, Chaoyang District, Beijing, 100022, P.R.China
High Quality PTC Coolant Heater
Electric Vehicle High Voltage PTC Heater can provide heat for the cockpit of new energy vehicles and meet the standard of safe defrosting and defogging. It also provides heat to other parts of the vehicle that require temperature regulation, such as the battery.
Description
High Quality PTC Coolant Heater
Products Description
This electric heater is suitable for electric/hybrid passenger/trucks, and is mainly used as a heat source for in-vehicle temperature regulation. This electric heater is suitable for both vehicle driving mode and parking mode. During the heating process, the electrical energy is effectively converted into thermal energy by the heating tube, so this product has a faster heating effect than the internal combustion engine. At the same time, it can also be used for battery temperature regulation (heating to operating temperature).
This electric heater uses thick film heating technology to meet the safety requirements of passenger cars for high voltage. In addition, it can also meet the relevant environmental requirements of components in the engine compartment.
The purpose of the electric heater in the application is to replace the engine block as the main heat source. It heats the heating tube by supplying power to the heating tube, and heats the medium in the heating system circulation pipeline through heat exchange.
The main performance characteristics are as follows:
Compact structure, high power density, can flexibly adapt to the installation space of the whole vehicle.
The redundant sealing design can improve system reliability
Products Parameters
| Operating temperature range | -40℃~85℃ |
| Storage temperature range | -40℃~120℃ |
| Medium temperature | -40℃~90℃ |
| Medium temperature | Water: ethylene glycol/50:50 |
| Humidity condition (RH) | 5%~95% |
| Dimensions | 316*240*238mm |
| Weight | 6kg |
| Power/kw | 20±10%KW @60℃,10L/min; |
| Insulation resistance MΩ | ≥100@DC1000V |
| Withstand voltage mA | ≤20@AC2500V/60s |
| Minimum flow requirement | 30L/min |
| Communication protocol | CAN |
| Connector IP level (high and low voltage) | IP67 |
| High voltage working voltage/V (DC) | 450-750 |
| Low voltage operating voltage/V (DC) | 9-32 |
| Low voltage static current | ≤0.1mA |
| With sleep function | yes |
| Temperature detection | The water inlet and outlet are equipped with temperature sensors; |
| Power-off threshold (adjustable according to customer requirements) | TCoolant > 80℃ (adjustment 10℃) TPCB > 125℃ (adjustment 15℃) |
Products Detail Pictures
Products installation
Requirements for the vehicle electrical system:
① Ensure that the polarity of the high-voltage power supply is correct and has overvoltage and undervoltage protection functions
② An independent high-voltage DC fuse needs to be installed on the vehicle side for short-circuit protection
③ The vehicle needs to be installed with an insulation tester for leakage detection
④ The high-voltage line has an interlocking function
Products Certification
Products application
FAQ
1.What is thick film heating technology?
Answer:
Thick film heating technology involves printing a conductive and resistive heating layer-typically ceramic or metal oxide-onto a substrate such as stainless steel or alumina. When electricity flows through this layer, it rapidly generates heat. It allows for fast response, high efficiency, and compact design.
2.How is thick film better than traditional PTC heating elements?
Answer:
Unlike PTC (Positive Temperature Coefficient) heaters that rely on thermal expansion of materials, thick film heaters offer:
Faster heat-up time
Higher energy efficiency
More precise temperature control
Ultra-compact structure
They are ideal for space-constrained applications like electric vehicles, home appliances, or portable devices.
3. Are thick film heaters safe to use?
Answer:
Yes. They feature multiple layers of electrical insulation, and temperature sensors are often integrated for real-time thermal control. Many thick film systems also support overheat protection, dry-heating prevention, and short-circuit safeguards.
4.How fast does a thick film heater reach operating temperature?
Answer:
Very quickly. Most thick film heaters can reach over 150°C (302°F) within 10–30 seconds, depending on power and application. This rapid thermal response is especially valuable in EVs where quick cabin or battery heating is required.
5. What is the energy efficiency of thick film heaters?
Answer:
Thick film heaters have thermal efficiencies above 90%, meaning most of the electrical energy is directly converted into usable heat. This efficiency reduces battery load in electric vehicles or power consumption in household applications.
6. Can thick film heaters be used for heating liquids and gases?
Answer:
Yes. They are widely used for heating air, water, glycol, oil, and even gases like CO₂ in scientific or industrial systems. Their ability to heat fluids quickly and uniformly makes them ideal for compact systems
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