Introduction of 8kw PTC coolant heater
Product Introduction

PTC water heating heater can provide heat for the new energy vehicle cockpit and meet the standards of safe defrosting and defogging. At the same time, it provides heat to other vehicles that require temperature adjustment (such as batteries).
Product Features
1.Electricity is used to heat the antifreeze, and the heater is used to heat the interior of the car. 2.Installed in the water cooling circulation system.
3.Warm air and temperature controllable.
4.Use PWM to adjust the drive IGBT to adjust the power with short-term heat storage function.
5.Whole vehicle cycle, supporting battery thermal management and environmental protection.
Product exploded view

According to the voltage requirement of 600V, the PTC sheet is 3.5mm thick and TC210 ℃, which ensures good withstand voltage and durability. The internal heating core of the product is divided into four groups, which are controlled by four IGBTs. In order to ensure the protection grade of the product IP67, insert t he heating core assembly i nto the lower base obliquely, cover the (Serial No. 9) nozzle sealing ring, and then press the outer part with the pressing plate, and then put it on the lower base (No. 6) is sealed with pouring glue and sealed to the upper surface of D-type pipe. After assembling other parts, the sealing gasket (No. 5) is used between the upper and lower bases to ensure the good waterproof performance of the product.
Design advantages:
1.It adopts 4-channel PWM control mode, the bus impulse current is small, and the requirement for the relay in the whole vehicle loop is low.
2.PWM mode control enables continuous power adjustment.
3.The CAN communication mode can report the working status of the controller, which is convenient for the control and monitoring of the whole vehicle.






