Rotary electric machine unit having rotary electric machine with cooling part and electric power conversion device
摘要
說明書
According to the third aspect, since the housing cooling part is extended along the outer peripheral surface of the stator, the stator can be cooled by the housing cooling part in a wider range, in a similar manner to the first cooling part of the first aspect. In addition, the housing flow path is located to face both of the one surface and the rear surface of the semiconductor device, the power module can be cooled from both sides by the refrigerant flowing in the housing flow path. As such, the cooling effect of the power modules by the refrigerant is readily enhanced. As such, the cooling effect can be enhanced for both of the rotary electric machine and the electric power conversion device, in the similar manner to the first aspect as described above.
Multiple embodiments will be described with reference to the drawings. In the multiple embodiments, functionally and/or structurally corresponding parts are given the same reference numerals. Hereinafter, a thickness direction of a semiconductor device 20 is referred to as a Z direction, and a direction that is orthogonal to the Z direction and along which semiconductor devices 200 in one power module 110 are arranged is referred to as an X direction. A direction orthogonal to both of the Z direction and the X direction is referred to as a Y direction. Unless otherwise specified, a shape along an XY plane including the X direction and the Y direction is referred to as a planar shape.
An electric power conversion device and a motor unit of the present embodiment can be, for example, employed to a vehicle, such as an electric vehicle (EV) or a hybrid vehicle (HV). Hereinafter, an example in which the electric power conversion device and the motor unit are employed to the hybrid vehicle will be described.
(Drive System)
