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Application of thermal graphite sheet in power module of motor controller

Views: 500     Author: Site Editor     Publish Time: 2025-01-17      Origin: Site

In the complex system of new energy vehicles, the motor controller plays a crucial role, which is like the "nerve center" of the car, and precisely controls the operation of the motor. The power module in the motor controller is the core of its core, which is responsible for the conversion and transmission of electric energy. In the working process, the power module will generate a lot of heat, if the heat can not be dissipated in time, it will have a serious impact on the performance and reliability of the motor controller.


Thermal conductive graphite sheet with its unique performance advantages, become the ideal choice to solve the problem of power module heat dissipation. When the thermal conductive graphite sheet is attached to the surface of the power module, its highly ordered crystal structure can rapidly capture the heat generated by the power module and conduct it in the plane direction with extremely high efficiency. Compared with traditional heat dissipation materials, the thermal conductivity of thermal graphite sheet is very high, and it can transfer heat to a larger area in a short time to achieve rapid heat dispersion.

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From the practical application effect, the thin and light characteristics of the thermal conductive graphite sheet make it perfectly fit the complex shape of the power module. In the production process of new energy vehicles, engineers can accurately die cut the thermal conductive graphite sheet according to the specific shape of the power module to ensure that it is seamlessly fitted to the surface of the power module. This tight fit greatly reduces thermal resistance, allowing heat to be more smoothly transferred from the power module to the thermal graphite sheet, and then quickly dissipated.


In some extreme conditions, such as when new energy vehicles are driving at high speed or climbing hills, the motor controller needs to bear a greater load, and the heat generated by the power module will also increase sharply. At this time, the excellent heat dissipation performance of the thermal conductive graphite sheet is particularly important. By effectively reducing the working temperature of the power module, the thermal conductive graphite sheet can not only ensure the stable operation of the motor controller under various complex conditions, but also extend its service life and reduce maintenance costs.


In addition, the application of thermal conductive graphite sheets also brings more flexibility to the overall design of new energy vehicles. Due to its thin and light characteristics, it will not add too much weight and volume, which is of great significance for new energy vehicles that pursue lightweight and maximize space utilization.

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