某舰载密闭电源机柜的热设计及实现

摘要

针对某密闭电源机柜的热设计要求，采用局部水风换热器循环风冷和冷板表面器件散热相结合的设计思路，以 UG 三维软件进行整体结构布局设计，再利用 UG 高级热流仿真模块进行热散耗功率仿真，从而较好地解决了电源机柜的变压器和隔离栅双极晶体管(IGBT)等重要器件的散热问题。整个方案具有设计合理、紧凑、可靠性高等特点。最后通过试验，验证了整个机柜热设计的合理性。%According to the themal design requriements of a certain airtight power supply cabinet, this paper uses the design idea which combines partial cycle air cooling via air-water heat exchanger with heat abstraction through cooling plate on the surface devices,uses UG 3D software to design overall structrue and layout,adopts UG advanced thermal simulation module to simulate heat dissi-pation power,so the heat abstraction problems of power supply cabinet transformer and insulate-gate bipolar transistor (IGBT)as well as other important devices are commendably solved.The scheme has the advantages of reasonable design,compact structure and high reliability.Finally,the rationality of the cabinet thermal design is verified through the experiments.