Patent ID: 8839894

Claim:
An electric drive system for a vehicle, comprising: an electric drive unit that electrically drives the vehicle; and a cooling unit that cools the electric drive unit, wherein the electric drive unit and the cooling unit are mounted at a body frame of the vehicle via an elastic support member, the electric drive unit and the cooling unit being configured as an integrated unit; wherein the cooling unit includes: a refrigerant circulation path through which a cooling medium is circulated to the electric drive unit; a heat exchange unit via which the cooling medium and outside air exchange heat; a refrigerant circulation unit that circulates the cooling medium between the heat exchange unit and the electric drive unit through the refrigerant circulation path; and an air blower unit that blows air to the heat exchange unit, wherein the electric drive unit, the refrigerant circulation path, the heat exchange unit, the refrigerant circulation unit and the air blower unit are disposed at a sub-frame rather than at the body frame, and the sub-frame is mounted at the body frame via the elastic support member; and wherein a cooling medium outlet port through which the cooling medium is let out from the heat exchange unit is positioned closer to a cooling medium intake port of the electric drive unit, compared to a cooling medium intake port of the heat exchange unit.