Electric drive apparatus

An electric drive apparatus comprising:

• an inverter circuit that converts between DC power and AC power;
• a rotary electric machine that is provided with a winding to which AC power converted by an inverter circuit is supplied, and a rotor rotation shaft rotating integrally with a rotor;
• a reduction gear that reduces and outputs the rotational speed of the rotor rotation shaft;
• and
• a case that houses at least the reduction gear,
• wherein the reduction gear is provided with at least a plurality of rotation shafts arranged in parallel with an axial direction of the rotor rotation shaft, and a plurality of gears, the plurality of rotation shafts includes an input rotation shaft extending on coaxially from the rotor rotation shaft to one side in the axial direction, and rotating integrally with the rotor rotation shaft, and an output rotation shaft outputting rotation to outside of the reduction gear,
• the case is provided with a second case member with a bottomed tubular reduction gear housing opening part opened to the one side in the axial direction, and a first case member closing an opening of the reduction gear housing opening part,
• the reduction gear is housed in a reduction gear housing space formed by the reduction gear housing opening part of the second case member and the first case member,
• defining a specific direction orthogonal to the axial direction as a first orthogonal direction, one or more of the rotation shafts other than the input rotation shaft are arranged on one side in the first orthogonal direction than the input rotation shaft,
• the inverter circuit is arranged outside the reduction gear housing space, and on a radial-direction outside of the input rotation shaft except the one side in the first orthogonal direction of the input rotation shaft;
• and is arranged on the one side in the axial direction than the rotary electric machine, and has a part which overlaps with the rotary electric machine when viewed in the axial direction.