| 题名 | 大功率整流器件蒸发冷却技术的研究; 大功率整流器件蒸发冷却技术的研究 |
| 作者 | 1谢秀刚,电工研究所 |
| 学位类别 | 硕士 |
| 答辩日期 | 2005 |
| 授予单位 | 中国科学院电工研究所 |
| 导师 | 1熊楠,电工研究所 |
| 关键词 | 蒸发冷却 大功率整流模块 器件冷却 冷却基板 evaporation cooling power commute module device cooling base-plate |
| 其他题名 | 大功率整流器件蒸发冷却技术的研究 |
| 学位专业 | 电机与电器 |
| 中文摘要 | 电力电子行业的迅猛发展而导致的电子器件热可靠性问题，是影响电子器件性能的关键因素，因而解决电子器件的散热问题具有重要意义，蒸发冷却技术的采用为i亥问题的解决提供了一条有效的途径。在理论分析方面，本文论述了蒸发冷却技术相关的大空间沸腾换热的理论基础、、"从汽泡核化和汽泡动力学的角度，分析表面沸腾汽泡形成、成长、跃离、运动的过程和特点。通过对大空间沸腾换热过程机理进行分析，揭示了沸腾曲线的换热规律。对曲线白勺单相自然对流阶段、泡态沸腾阶段、膜态沸腾阶段进行了分析，并论述了最垂要的泡态沸腾阶段的四种换热模型。在实验研究方面，本文设计并建成了以大功率整流模块为实验对象的大功率整流器件蒸发冷却技术实验研究装置，进而在此装置上对相关问题进行了实验研究，包括功率模块管壳和冷却基板间接触热阻的实验及分析、同基板同电流不同压力下系统传热情况的实验及分析、同基板不同电流同压力下系统传热情况的实验及分析、不同结构不同材质系统传热情况的实验及分析等项内容。通过本文的工作，开拓性地研究了间接蒸发冷却技术在大功率整流器件冷却技术方面的应用。通过对作为该技术核心部件的冷却基板所进行的一系列实验和分析，得到了一些对工程应用具有指导意义的结论，为该技术的深入研究，以及拓展该技术的工程应用领域奠定了基础。本文研究成果已在课题组项目实施中得到应用。 With the rapid development of power electric industry, the heat reliability becomes a key factory to electric devices. Cooling problem"df electric devices becomes of more and more importance, and this problem can be solved effectively by the evaporation-cooling technology. In the area of theory study, theory of pool boiling analysis concerning evaporation-cooling technology is discussed. From the view of thg bubble nucleation and the bubble dynamics, the process and features of bubble's formation, growth, separation, motion during surface boiling are analyzed. The mechanisms of pool boiling heat transfer process are analyzed and the boiling curve of heat transfer theory is discussed. The diversity among different booling stages of single phase natural convection, nucleate boiling and film boiling is studied, and the four basic heat transfer modes of nucleate boiling are also illuminated. In the area of experiment study, the experiment system of evaporation-cooling technology of power commute device is designed and built. A series of experiment studies is performed with this experiment system, including the study of the contact thermal resistance between power module and the base-plate, the compare of the heat transfer characteristics among different structures, materials, currents, and system working pressures. Through the above studies, the application of indirect evaporation-cooling technology in the area of power commute device cooling is studied. A series of conclusions is gained from the experimental results and analysis, which would be useful in engineering applications and the further research. The research results in this paper have been applied in a practical project of our research center. |
| 语种 | 中文 |
| 公开日期 | 2010-10-18 |
| 页码 | 65 |
| 内容类型 | 学位论文 |
| 源URL | [http://ir.iee.ac.cn/handle/311042/7409]  |
| 专题 | 电工研究所_其他部门_其他部门_硕士学位论文 |
| 推荐引用方式 GB/T 7714 | 1谢秀刚,电工研究所. 大功率整流器件蒸发冷却技术的研究, 大功率整流器件蒸发冷却技术的研究[D]. 中国科学院电工研究所. 2005. |
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