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发明公开
CN107818960A 一种用于轨道交通工具的功率半导体模块 有权

一种用于轨道交通工具的功率半导体模块
摘要：
本发明提出了一种用于轨道交通工具的功率半导体模块，该功率半导体模块包括散热器和设置在散热器上的衬板单元，散热器具有与散热器的内腔连通的冷却质入口和冷却质出口，衬板单元具有衬板以及固定设置在衬板上的功率半导体芯片，其中，衬板接触式设置在散热器的表面上，通过将衬板直接设置在散热器的表面上，降低了功率半导体芯片与散热器之间的热阻，提高了该功率半导体模块的散热效率，同时，有助于减少功率模块的体积和重量。
摘要（英）：

The invention provides a power semiconductor module for a rail transportation vehicle. The power semiconductor module comprises a radiator and lining plate units arranged on the radiator, and is characterized in that the radiator is provided with a cooling medium inlet and a cooling medium outlet which are communicated with an inner cavity of the radiator, and each lining plate unit is provided with a lining plate and a power semiconductor chip fixedly arranged on the lining plate, wherein the lining plates are arranged at the surface of the radiator in a contact manner. The lining plates aredirectly arranged at the surface of the radiator, so that thermal resistance between the power semiconductor chips and the radiator is reduced, the heat radiating efficiency of the power semiconductormodule is improved, and the volume and the weight of the power module are facilitated to be reduced at the same time.

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