How to cool the OBC car charger?
[ Date: 2022-07-12 15:32:08 Author: Popularity: ]
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With the rapid development of the automotive industry, the on-board charger is an essential core component of new energy vehicles. The on-board charger is widely used, and presents the characteristics of versatility, portability, fashion and so on. The on-board charger should not only consider the actual demand of lithium battery charging, but also take into account the harsh environment of on-board battery, system switching noise interference, EMI, etc. Therefore, the power management IC selected by the on-board charger scheme must be met at the same time: a switching power supply chip with high voltage resistance, high efficiency, high reliability and low frequency. In addition, the selection of thermal conductive interface materials is also crucial in the application of the thermal management scheme of the on-board charger and power IC chip.


All electronic components of the on-board charging machine need to be encapsulated in this closed shell environment to prevent environmental pollution. This requires that these electronic devices/chips /MOSFET with huge heat must contact the inner wall of the shell of the hardware mold to effectively realize heat dissipation.


At present, the more common thermal interface material scheme is to use thermal conductive silicone pad, which has good thermal conductivity, softness, high temperature resistance, high and low temperature resistance, high reliability, safety and environmental protection. To meet the needs of the vehicle, Dasen strictly abides by the quality standard and strictly demands itself with high standards. It is no exception to choose the thermal conductive interface material scheme of the vehicle charger.


Thermal conductive silicone pad is used to fill the air gap between the heating device and the heat sink or metal base. Its flexibility and elasticity make it possible to cover very uneven surfaces. Its excellent performance enables heat to be transmitted from the heating device or the whole PCB to the metal shell or diffusion plate, which can improve the efficiency and service life of the heating electronic components. 


Product characteristics of thermal pad: 

1. Good thermal conductivity 

2. With self-adhesive without additional surface adhesive 

3. High compressibility, soft and elastic, suitable for low pressure application environment 

4. It can provide a variety of thickness 


Options for thermal conductive silicone sheet product applications: 

1. Radiator bottom or frame 

2. Set-top box 

3. power supply and vehicle storage battery 

4. charging pile 

5. LED TV LED lamps 

6. RDRAM memory module 

7. Micro heat pipe radiator 

8. Intelligent robot chip