Air-cooled Design of 4 kW DC Bus Converter on Airplane

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Xue, Kaichang^1^2 ; Luo, Zongxin^1^2

0616-research Institution of Guizhou Aerospace Linquan Motor Co., Ltd., Guizhou

550081, China^1

National Engineering Research Center for Small and Special Precision Motors, Guizhou

550081, China^2

关键词: Air pressures;    Air volumes;    Application requirements;    Bus converters;    Circuit structures;    Design method;    Design structure;    Temperature rise;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/3/032086/pdf
DOI  :  10.1088/1755-1315/252/3/032086

来源: IOP

【 摘 要 】

To meet the application requirements of 4 kW DC 270 to DC 28 V converter on airplane, an air-cooled design method is proposed. According to converter's circuit structure, the losses of main components and the air-cooled design structure are determined. The thermal resistance model of the air-cooled is built, and the process of the air-cooled design is illustrated. Then the air pressure and air volume of fan are determined. The results demonstrate that the temperature rise of the heat sink is less than 35°C when the output is 4 kW and the converter can work reliably when ambient temperature is 70°C.