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    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

Introduction Of 8kw PTC Coolant Heater

Nov 28, 2022

Introduction of 8kw PTC coolant heater


Product Introduction

8kw high voltage coolant heater




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

battery cabin coolant heater structure



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.



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