Rotary electric machine unit having rotary electric machine with cooling part and electric power conversion device
摘要
說明書
It is not always necessary that the outer flow path 752 extends along the inner flow path 751 as long as the outer flow path 752 is housed in the housing 703. For example, it is assumed that the inner flow path 751 and the outer flow path 752 are not arranged in the radial direction β. Even in this configuration, if the distance from the inner peripheral surface of the housing 703 in the radial direction β is larger in the outer flow path 752 than in the inner flow path 751, the refrigerant flowing in the outer flow path 752 cools the power modules 110 prior to the stator 701.
As examples of the configuration in which the housing flow path 711 exist on both the one surface 181 and the rear surface 182 of the power module 110, in addition to the configuration of the present embodiment, there is a configuration in which the power modules 110 are arranged between the inner flow path 751 and the outer flow path 752 in the radial direction β. In this configuration, an accommodating portion such as a hole is provided in the inner/outer partition portion 753, and the power module 110 is accommodated in this accommodating portion. In this case, the inner/outer partition portion 753 cools the power module 110 with the refrigerant flowing through the inner flow path 751 and the outer flow path 752.
