大功率电动汽车用控制器水冷却系统设计  

Designing and Producing on a High Power Electric Vehicle Controller Water Cooling System

作　　者：丁左武[1,2] 屈敏[1] 郝腾飞[1] 吕云嵩 DING Zuowu;QU Min;HAO Tengfei;Lü Yunsong(College of Automotive and Rail Transit,Nanjing Institute of Technology,Nanjing 211167,Jiangsu,China;Jiangsu Key Laboratary of Advanced Numerical Control Technology,Nanjing 211167,Jiangsu,China)

机构地区：[1]南京工程学院汽车与轨道交通学院,江苏南京211167 [2]先进数控技术江苏省高校重点建设实验室,江苏南京211167

出　　处：《电气传动》2017年第3期51-54,73,共5页Electric Drive

基　　金：江苏省高校科研成果转化项目(JHB2011-26);南京工程学院在职博士科研基金(ZKJ201405);南京工程学院创新基金(CKT2011012)

摘　　要：为了降低大功率电动汽车控制器工作温度,提高其工作效率,设计出控制器水冷却系统,系统包含水道、水泵、散热片、风扇等。控制器的功率管紧贴在水道上,功率管的热被水道里的水吸收,并被送往散热片。散热片在风扇的作用下把热量吹散开,降低了驱动功率管的温度。利用DS18B20检测水温,利用PWM控制L298内部MOS管的开度,风扇和水泵的转速随着驱动管温度改变而变化。试验表明,在大负荷工况下,驱动管的温升得到有效抑制,控制器的工作效率明显提高。To reduce the high-power electric vehicle controller temperature,and to increase controller′s workingefficiency,a water cooling system was designed.The water cooling system included water channel,water pump,cooling fin,fan,and the associated pipeline.In the high-power electric vehicle controller,lots of driving tubes wereput on the face of the water channel,and the quantity of heat produced by the driving tubes was absorbed by the waterinside the water channel.The water flowed in the water channel and the heat was carried to the cooling fin.The fansworked,and the heat was blown away out of the electric vehicle,so the driving tubes temperature was reduced.Temperature sensor DS18B20checked the water temperature,and the CPU adjusted the MOS tubes opening size,soas to change the fan and water pump working speed.The tests indicate that the cooling system can restrain drivingtube′s temperature availably,and increase the controller working efficiency effectively.

关 键 词：大功率电动汽车 控制器 水冷却系统 驱动功率管 温度控制 

分 类 号：TM92[电气工程—电力电子与电力传动]