The invention aims to provide a mounting structure of a DCDC converter assembly and an MCU motor controller assembly of an electric vehicle, the mounting structure comprises the MCU motor controller assembly and the DCDC converter assembly with a vehicle-mounted charging function, and is characterized in that the MCU motor controller assembly and the DCDC converter assembly are mounted on the same support at an interval, the two ends of the support are fixed to a left longitudinal beam and a right longitudinal beam of an automobile rear floor framework assembly respectively. The DCDC converter assembly with the vehicle-mounted charging function is adopted, wire harnesses for connecting the vehicle-mounted charger assembly and the DCDC converter assembly can be reduced, in addition, the MCU motor controller assembly and the DCDC converter assembly are installed on the same support in a spaced mode and are installed on the rear floor framework at the rear portion of the vehicle body, the position of a passenger compartment is avoided, and the interior space is improved. In addition, the support connects the left longitudinal beam and the right longitudinal beam of the rear floor framework, the Y-direction rigidity of the rear floor can be improved, and a certain contribution is made to improvement of the bending rigidity and the modal of the rear floor assembly.
本发明的目的是提出一种电动汽车DCDC转换器总成与MCU电机控制器总成的安装结构,包括MCU电机控制器总成和具有车载充电功能的DCDC转换器总成,关键在于,所述MCU电机控制器总成和DCDC转换器总成间隔安装于同一个支架上,所述支架的两端分别固定于汽车后地板骨架总成的左、右纵梁上。本发明采用了具有车载充电功能的DCDC转换器总成,可以减少连接车载充电机总成与DCDC转换器总成的线束,另外,将MCU电机控制器总成和DCDC转换器总成间隔安装于同一个支架上,并安装于车身后部的后地板骨架上,避开了乘员舱的位置,有利于改善车内空间,而且支架连接了后地板骨架的左、右纵梁,还可以提高后地板的Y向刚度,对提升后地板总成弯扭刚度和模态有一定贡献。
Mounting structure of DCDC converter assembly and MCU motor controller assembly of electric vehicle
电动汽车DCDC转换器总成与MCU电机控制器总成的安装结构
11.01.2022
Patent
Elektronische Ressource
Chinesisch
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