Patent ID: 8582291

Claim:
A power conversion apparatus comprising: electronic components that form at least part of a power conversion circuit; a cooler for cooling at least part of the electronic components; a case that surrounds and encloses the electronic components and the cooler; and a frame that is attached to an interior of the case wherein the at least part of the electronic components and the cooler are fixed to and integrated with the frame to form an internal unit, the frame is formed so as to surround the at least part of the electronic components that form at least part of the internal unit, and includes at least a front wall section, and a pair of side wall sections that extend backward from both ends of the front wall section, the cooler includes a coolant introduction tube introducing coolant into the cooler and a coolant discharge tube discharging the coolant from the cooler, the coolant introduction tube and the coolant discharge tube projecting outward from the frame while being supported by the front wall section, and the thickness of the front wall section is larger than the thickness of the side wall section.