Rotary electric machine unit having rotary electric machine with cooling part and electric power conversion device
摘要
說明書
According to the present embodiment, the flow paths 126 of the respective power modules 110 are in parallel with each other. In this configuration, the inflow region 741 and the outflow region 742 are connected by each of the three flow paths 126 of the three power modules 110, each power module 110 having one flow path 126. Therefore, the amount of refrigerant flowing from the inflow region 741 into the outflow region 742 is increased, as compared with a configuration in which the inflow region 741 and the outflow region 742 are connected through only one flow path 126. Further, since the pressure loss in each flow path 126 is also reduced, it is possible to easily increase the amount of refrigerant flowing through one flow path 126. Therefore, even if the flow rate of the refrigerant flowing through the flow path 126 of the power module 110 is smaller than that of the housing flow path 711, the amount of the refrigerant flowing from the inflow region 741 into the outflow region 742 through the flow paths 126 of the respective power modules 110 into the outflow region 742 can be increased as much as possible. In this case, since the amount of the refrigerant circulating in the cooling circuit per unit time is unlikely to be insufficient, the cooling effect achieved by the refrigerant flowing in the housing flow path 711 and the flow paths 126 can be enhanced.
