摘要
电源变换装置使用了大量的IGBT、MOS管等大功率器件,热流密度较高。热仿真分析能定量地确定热设计措施对散热效果的影响,为热设计提供指导。增加散热器翅片的个数能够有效地增大散热器的扩展面积,提高散热效果。对于强迫和风冷的散热器,散热器翅片的数量比齿间距和厚度的影响更加明显。
The power conversion device consists of a large number of high-power devices such as IGBTs and MOS tubes,so its heat flux density is high.Thermal simulation analysis can quantitatively determine the influence of thermal design measures on the heat dissipation effect,and provide useful advicements for thermal design.Adding more fins of the heatsink can effectively increase the expansion area of the heatsink convection and improve the heat dissipation effect.For forced and air-cooled heatsink,the number of heatsink fin has a more important effect than the the width of fin or the gaps between fins.
作者
孔叔钫
时钟
黄永华
KONG Shufang;SHI Zhong;HUANG Yonghua(CEPREI,Guangzhou 511370,China;The Ministry of Industry and Information Technology Key Laboratory of Performance and Reliability Testing and Evaluation for Basic Software and Hardware,Guangzhou 511370,China)
出处
《电子产品可靠性与环境试验》
2022年第2期6-9,共4页
Electronic Product Reliability and Environmental Testing
关键词
散热器翅片
降额设计
热仿真
heatsink fin
derating design
thermal simulation
