Abstract In this work a new concept of liquid cold plate for high power press-pack assemblies is investigated. In industrial applications it is very important to reduce the volume and weight of the device-heatsink stack, in order to improve reliability and availability of the whole system. The potential of aluminum additive manufacturing technology is investigated by means of coupled thermal fluid-dynamic 3D modeling in order to get the best trade-off between thickness, thermal performance, and pressure drop. The validation of the numerical model was conducted by means of thermal characterization of a prototype with a properly built test bench. The numerical model was used to explore different solutions for the cold plate internal layout, such as with classical coils, deformed coils, or specific textures impossible with standard mechanical machining. Early results are shown to demonstrate the usefulness of our coupled thermal fluid-dynamic approach. Mechanical analysis was also taken into consideration, to account for possible weakness induced by the reduction in metal content typical of the advanced structures built with additive technology.

中文翻译：

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增材制造液体冷板的 CFD 建模，以实现更可靠的动力压装组件

摘要 在这项工作中，研究了一种用于大功率压装组件的液体冷板的新概念。在工业应用中，减小器件-散热器堆栈的体积和重量非常重要，以提高整个系统的可靠性和可用性。通过耦合热流体动力学 3D 建模研究铝增材制造技术的潜力，以便在厚度、热性能和压降之间取得最佳平衡。数值模型的验证是通过原型的热表征和正确构建的测试台进行的。数值模型用于探索冷板内部布局的不同解决方案，例如经典卷材、变形卷材、或标准机械加工不可能实现的特定纹理。早期结果证明了我们的耦合热流体动力学方法的有用性。机械分析也被考虑在内，以解决由于使用增材技术建造的先进结构典型的金属含量减少而可能引起的弱点。