Ev Bus Electric Defrosting Unit

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Hydroelectric Defrosting Unit for EV Truck

 

 

 

OE NO.	ZD2721
Rated voltage of the electric heating device	DC600V
Motor Power	180W
Voltage Range	DC520V-DC680V
Motor rated voltage	DC24V
Nominal heat release	4kw±10% (under the conditions of electric heating device voltage DC600V and inlet air temperature 20℃)
Ambient temperature	-40℃~+50℃
Rated power of the fan	180w±10%
Fan rated current	≤8A

 

 

 

 

Energy Optimization (for New Energy Vehicles): Relying solely on electric heating significantly reduces the driving range of pure electric vehicles. The water-electric defroster fully utilizes the waste heat from the battery or motor (water heating), effectively reducing pure electric consumption.

 

Rapid Response: During cold starts at low temperatures, water heating alone cannot provide immediate heat. The PTC electric heater fills the heating gap before the water temperature rises, blowing out hot air within seconds.

 

Multi-functional Integration: Cooling, heating, defrosting, and defogging functions are integrated into one unit, automatically adjusting to seasonal temperatures.

 

 

 

This device generates hot air through the coordinated operation of two heat sources, which is then blown towards the glass or interior by a fan:

 

Water Heating Component (Liquid):

 

Utilizes the waste heat from the circulating coolant in the car engine. The high-temperature coolant flows through the internal liquid radiator, and the cool air blown by the fan absorbs the heat from the water, becoming hot air.

 

Electric Heating Component (Electric):

 

Features a built-in PTC electric heating element. During initial vehicle startup, when the water temperature is low, or in extremely cold environments, the PTC quickly generates heat, exchanging heat with the air through its fins to compensate for the insufficient heat from the water heating system.

 

Coordinated Operation Mode:

 

The two heat sources can automatically switch or operate simultaneously based on the water temperature. Once the target water temperature is reached, the electric heating can reduce its power or be turned off to save energy.

 

 

 

The defroster should be installed as close as possible to the dashboard. The cross-sectional area of ​​the exhaust duct should not be smaller than the exhaust outlet area of ​​the defroster. Avoid excessive bends, as this will increase airflow resistance and affect defrosting efficiency.

When installing the radiator or defroster, all joints should be sealed and tightened. Foreign objects should be prevented from entering the piping, and there should be no sharp bends.

Openings should be made according to the dimensions in the drawings or the actual dimensions. Air inlets and outlets should be unobstructed to ensure unobstructed airflow.

 

 

Traditional internal combustion engine vehicles: Buses, trucks, and special vehicles, used for panoramic windshield defrosting or auxiliary cab heating.

 

New energy/hybrid vehicles: In hybrid mode, since the engine is not constantly running, the integrated hydroelectric structure ensures a stable heat source supply under any power condition.

 

Construction machinery: Excavators, cranes, etc., for defogging and defrosting windows in cold outdoor operating environments.

 

 

 

 

The integrated hydroelectric defroster is more than a simple addition of functions; it's a systematic innovation focused on energy conservation and user experience. It precisely addresses the biggest pain point of electric vehicles in cold climates-reduced range. Through ingenious engineering, it transforms previously wasted engine heat into a valuable source of warmth.

 

For buyers, this means:

 

Longer winter range and reduced charging anxiety.

 

Fast cabin heating for improved comfort and safety.

 

Lower overall cost of ownership. While the initial purchase price is slightly higher, the savings in electricity bills are significant.

 

 

 

 

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