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A Unique Approach to Power Electronics and Motor Cooling in a Hybrid Electric Vehicle Environment

机译:混合动力电动车辆环境中电力电子和电机冷却的独特方法

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An innovative system for cooling the power electronics of hybrid electric vehicles is presented. This system uses a typical automotive refrigerant R-134a (1,1,1,2 tetrafluoroethane) as the cooling fluid in a system that can be used as either part of the existing vehicle passenger air conditioning system or separately and independently of the existing air conditioner. Because of the design characteristics, the cooling coefficient of performance is on the order of 40. Because liquid refrigerant is used to cool the electronics directly, high heat fluxes can result while maintaining an electronics junction temperature at an acceptable value. In addition, an inverter housing that occupies only half the volume of a conventional inverter has been designed to take advantage of this cooling system. Planned improvements should result in further volume reductions while maintaining a high power level.
机译:提出了一种用于冷却混合动力电动车的电力电子的创新系统。该系统使用典型的汽车制冷剂R-134a(1,1,1,2四氟乙烷)作为一种系统中的冷却流体,可用作现有车辆乘客空调系统的一部分或单独和独立于现有空气护发素。由于设计特性,性能的冷却系数约为40.因为液体制冷剂用于直接冷却电子器件,所以在可接受的值下保持电子连接温度的同时可以产生高热量的通量。另外,占据传统逆变器的体积仅有一半的逆变器壳体已经设计用于利用该冷却系统。计划的改进应导致进一步的体积减少,同时保持高功率水平。

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