低气压环境下多路送风装置的设计与实现  

Design and Realization of Multi-channel Air Supply Device under Low Pressure Environment

作　　者：马红卫[1] MA Hongwei(The 10th Research Institute of CETC,Chengdu 610036,China)

机构地区：[1]中国电子科技集团公司第十研究所,四川成都610036

出　　处：《电子产品可靠性与环境试验》2020年第6期8-11,共4页Electronic Product Reliability and Environmental Testing

摘　　要：为了满足在低气压送风试验中对多台机载电子设备通风冷却的要求,结合该机载电子设备实际使用中的通风冷却条件和低气压试验系统单输入单输出的特点,设计出了在试验过程中能够实现由单输入单输出(SISO)变为多输入多输出(MIMO),并且能够针对不同产品要求的不同送风流量进行控制的装置。该装置通过法兰盘、温度传感器、流量计、调节阀与试验系统相连接,实现了多路控制的要求。以具体产品为例,通过低气压送风试验对该分流装置设计的合理性、有效性进行了进一步验证。In order to meet the requirements for ventilation and cooling of multiple airborne electronic equipment in the low pressure air supply test,combined with the ventilation and cooling conditions of the airborne electronic equipment in actual use and SISO characteristics of the low pressure test system,a device that can realize the transformation from SISO to MIMO and can control the different air flow required by different products is designed.The device is connected with the test system through flanges,temperature sensors,flow meters,and regulating valves,which fulfills the requirements of multi-channel control.Taking a specific product as an example,the rationality and effectiveness of the design of the shunt device have been further verified through the low-pressure air supply test.

关 键 词：低气压 多路送风装置 送风流量 送风温度 单输入单输出 多输入多输出 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]