Patent ID: 7898126

Claim:
An inverter-integrated rotating electric machine comprising: an enclosure in which a vent hole is formed; an AC motor accommodated in said enclosure, said AC motor including a rotor and a fan whose rotation introduces external air into said enclosure from outside through the vent hole, the fan being fixed to the rotor; and an inverter unit accommodated in said enclosure and disposed in the vent hole, said inverter unit including a power circuit portion located at a position facing the fan and a control circuit portion whose control board is housed in a case disposed in the vent hole, the case thermally isolating the control board from the power circuit portion, the control circuit portion being located on an upstream side of the power circuit portion with respect to an inflow of the external air, such that the power circuit portion is disposed closer to the fan than the control circuit portion; wherein signal lines from the power circuit portion are connected to signal lines from the control board through a hole formed in said case, and wherein the power circuit portion is not housed in any case disposed in the vent hole.