7KW PTC Heater Automotive

7KW PTC Heater Automotive

 

 

PTC (Positive Temperature Coefficient) means that the higher the temperature, the greater the resistance, showing a positive correlation. At present, most cars use this kind of heater, and it is more convenient to directly use the battery in the car for heating.

 

For pure electric vehicles, the battery on the vehicle is a high-voltage battery, and the electric heater will generally choose high voltage, because the voltage is high and the efficiency is high, and the same electrical energy can be converted into heat energy more.

 

According to the working mode of electric heaters, they can also be divided into those that directly heat the air and those that heat the air indirectly by heating water. The principle of directly heating air is the same as that of an electric hair dryer, while the water heating type is closer to the form of heating. This product is a water heating type electric heater.( PTC Coolant Heater)

 

Since the battery's discharge capacity is limited when starting at low temperatures in winter, battery preheating technology has also been adopted by many car companies. Currently, the most widely used is the use of heated water PTC, which connects the cabin and battery in a heating circuit in series, through a three-way valve The switch allows you to choose whether to perform a large cycle in which the cabin and battery are heated together or a small cycle in which the cabin and battery are heated separately.

 

 

Item	PTC coolant heater
Rated power (kw)	7KW -5%,+10% (350VDC, 20 L/min, 25 ℃)
High voltage range	240~500VDC
Low voltage range	9~16VDC
Electric shock	≤ 30A
Communication method	CAN2.0B
Insulation resistance	1000VDC, ≥ 120MΩ
IP grade	IP 6K9K & IP67
Coolant	50 ( water) +50 (ethylene glycol)%
EMC	IS07637/IS011452/IS010605/ CISPR25
Water chamber airtight	≤ 2.5 ( 20 ℃, 300KPa ) mL / min
Control area airtight	＜ 0.3 (20 ℃, -20 KPa ) mL / min
Control method	Limit power + target water temperature

 

Product explosion diagram：

 

 

 

Marking:

The position of the high-pressure warning label and product label of the PTC water heating heater assembly is shown in the view below.

 

Installation Method：

The PTC coolant heater base includes 6 mounting points and wires with 6 independent ST6 mounting jobs and mounting stops.

Material Properties:

All materials used in PTC heater assemblies can pass ELV testing. Before entering the mass production stage, all PTC raw materials require suppliers to provide banned substance reports and material reports.

 

 

 

 

 

1、Our company is the largest manufacturer of automobile heating and cooling equipment in China, and the designated supplier of military vehicles in China.
2、Quality Control through the whole Manufacturing process.
3、General Inspection on fixing before Packing.
4、In 2006, our company has passed ISO/TS16949:2002 quality management system certification.
5、After you make order, we will Follow up the whole process and Update it to you. Collecting goods, Loading containers and Tracking goods transport information for you.
6、Any of our products you are interested, or any customized orders you wish to place, any items you want to buy, Please let us know your requirements. Our team will do our best to Help you .

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