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铝合金压铸散热模块结构设计研究
Study on Structure Design of Die-Casting Allumnum Alloy Heat Dissipation Module
【作者】 包雪松；
【作者基本信息】 上海交通大学 ， 机械工程， 2011， 硕士
【摘要】 随着中国经济高速发展和人民生活水平日益提高,中国逐渐成为汽车产品的消费大国,广大消费者对于汽车娱乐系统的功能和性能不断提出更高的要求。汽车从一个纯粹以运输代步的单一功能产品,正在向多功能方向发展。对于车载娱乐系统而言,车载功放系统逐渐成为中高端汽车所必备的电子设施。在本文的研究过程中,运用了虚拟制造技术对车载功放散热模块和导热介质的材料进行选择;对车载功放产品的机械结构和散热性能进行设计和优化;对功放散热片的模具的压铸制造工艺方案和过程进行仿真研究,并确认最佳的压铸工艺方案和参数;产品的设计开发过程结束后,通过一系列实验测试对完成的产品进行设计验证;最后将测试结果与虚拟仿真的结果进行比对,以验证设计开发过程中虚拟仿真的准确性。研究证明,通过虚拟仿真技术在产品概念设计、结构设计、模拟仿真、工艺分析等各个环节的应用,优化了产品结构,改善了散热性能,减少了开发过程中产品和模具改动,缩短了开发周期,降低了开发成本,提高了产品的可靠性和稳定性。
【Abstract】 With the development of socioeconomic and the improvement of the people’s living standards, China has become one of the biggest countries consuming automotive, while entertainment systems such as integrated audio, navigation and communication functions are required to be increasingly improved. Automotive, purely as a single-function transport vehicle to travel, has been developed in a multi-direction way. For car entertainment systems, rear seat entertainment system, the global car TV, high-performance navigation systems, media player, integrated Class D amplifier and other functions is essential in high-end automotive electronics facility.In this paper, virtual manufacturing technology is adopted to select materials of heat dissipation module and thermal interface material, perform conduct design and optimization for mechanical structure and thermal performance. The optimal die-casting parameters and proposal are obtained by simulation of molding and manufacturing process for heatsink. After research and design process, Series of tests and comparison are applied to verify the final product. Virtual simulation accuracy is verified by comparing between test results and simulation results.It can be seen from the investigation that, by applying simulation of virtual manufacturing technology in all links such as concept design, mechanical design, simulation and preprocessing analysis, achievement of optimizing of mechanical structure, improving thermal performance and decreasing changing times in mould design can obtained, which reduces R&D period and cost of development, and increase the reliability of production.