Positive Temperature Coefficient (PTC) Heating Unit

KUS PTC (Positive Temperature Coefficient) heaters play a crucial role in the thermal management systems (TMS) of electric vehicles (EVs) and hydrogen fuel cell vehicles (FCVs), actively contributing to cabin heating and temperature control for batteries and fuel cells.



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Cabin Heating

In traditional internal combustion engine vehicles, waste heat is harnessed from the engine to warm the cabin. However, EVs and FCVs produce less waste heat, necessitating an innovative cabin heating approach. PTC heaters provide an efficient solution by generating heat through electrical resistance, swiftly warming the cabin during cold conditions.

Battery/Fuel Cell Heating

Maintaining optimal operating temperatures for batteries in EVs and fuel cells in FCVs is critical for their performance, efficiency, and longevity. PTC heaters excel, efficiently warming these components in cold conditions. This is particularly crucial for batteries, which can experience reduced capacity and potential damage at very low temperatures.

Self-Regulating Technology

The term “positive temperature coefficient” characterizes PTC heaters as their electrical resistance rises with temperature. This intrinsic feature renders PTC heaters self-regulating, reducing power output as they heat up to prevent overheating. This simplifies control systems and enhances vehicle safety, overall efficiency, and TMS reliability.

Efficiency and Reliability

PTC heaters provide a versatile and efficient solution for heating requirements in EVs and FCVs, significantly contributing to vehicle performance and passenger comfort.

Product Features

Application:

Ideal for pure battery electric, hybrid electric, and fuel cell vehicles.

Versatile Use:

Efficiently controls heat for various vehicle systems, including in-vehicle air conditioning and battery thermal management.

Automated Heating:

Offers an automated heating system.

Enhanced Heating:

Generates more heat than traditional heating elements, reducing electricity consumption.

Benefits:

Improves cruising range safety, lowers costs, and offers a more compact format.

Product Structure

PTC heaters feature a comprehensive structure, including radiators (housing PTC heating packs), coolant flow channels, a central control board with high/low-pressure connectors, and an upper shell. This design ensures stable power delivery, high heating efficiency, and consistent temperature control for various applications and scenarios.

 

Models and Specifications

Model NPA10 NPL20 NPH30/NPH30A NPK40 NPH50
Specification 80V-3kW 350V-5kW 600V-7kW 800V-10kW 600V-15kW
Power 3kW±10% 5kW±10% 7kW±10% 10kW±10% 15kW±10%
Rated conditions Coolant=0°C, 10L/min Coolant=60°C, 10L/min Coolant=0°C, 10L/min Coolant=60°C, 12L/min Coolant=0°C, 25L/min
Application scenarios Forklift Fuel System Passenger car\
Gas power system
Commercial Vehicle\
Gas Power System
New energy air
condition system
Commercial vehicle\
Gas Power System
Ambient temperature -40°C-85°C -40°C-85°C -40°C-85°C -40°C-85°C -40°C-85°C
Storage temperature  -40°C-105°C  -40°C-105°C  -40°C-105°C  -40°C-105°C  -40°C-105°C
Cooling water temperature  -40°C-90°C  -40°C-90°C  -40°C-90°C  -40°C-90°C  -40°C-90°C
Low voltage 9V-36V, Un=12/24V 9V-36V, Un=12/24V 9V-36V, Un=12/24V 9V-36V, Un=12/24V 9V-36V, Un=12/24V
Low voltage current <150mA <150mA <150mA <150mA <150mA
High voltage 70V-110V, Un=80V 250V-450V, Un=350V 450V-750V, Un=600V 750V-875V, Un=800V 400V-750V, un=600V
High voltage current <80A <30A aaaaaa <40A <60A
Insulation resistance >100MΩ >100MΩ >100MΩ >200MΩ >200MΩ

 

 

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