导热胶对小型无刷轴流风机驱动器散热影响研究

Study on Influence of Thermal Conductivity Adhesive on Heat Dissipation of Small Brushless Axial Fan Driver

以小型无刷轴流风机驱动器作为研究对象,建立驱动器散热求解域模型,在数值模拟的基础上对试验温度、导热胶牌号、导热胶灌封区域进行了正交试验。通过极差与方差分析法得到这些参数对驱动器最高温度影响,确定了驱动器散热系统最优性能参数,数值模拟结果表明优化后的驱动器散热系统在极限高温100℃下可有效控制驱动器最高温度在125℃工作范围内。

Taking small brushless axial fan driver as the research object,the heat dissipation solving domain model of the driver was established.On the basis of numerical simulation,orthogonal tests were carried out on the test temperature,heat conduction adhesive brand and heat conduction adhesive filling area.The influence of these parameters on the maximum temperature of the driver was obtained by the analysis of range and variance,and the optimal performance parameters of the driver cooling system were determined.The numerical simulation results show that the optimized driver cooling system can effectively control the maximum temperature of the driver within the working range of 125℃at the ultimate high temperature of 100℃.