Abstract: This power conversion device includes a magnetic core which has a gap formed by cutting out a part of an annular shape, a resin primary molded body configured to hold the magnetic core by covering a first end portion and a second end portion of the magnetic core that are arranged opposite to each other with the gap therebetween from outside of the magnetic core in a radial direction, and a resin secondary molded body which has an exposed portion in which a surface of a portion of the primary molded body that covers the first end portion and the second end portion is exposed, and contains the primary molded body.

Abstract: A power converter includes a sealing member in a loop shape sealing a space between a sealing surface of a cooler and a sealing surface of a casing. Either one of the sealing surface of the cooler and the sealing surface of the casing is provided with a groove in a loop shape enabling the sealing member to be fitted therein. A first positioning portion is provided on a bottom surface of the groove. The sealing member includes an internal sealing portion with a circular cross-section and located along the bottom surface of the groove, an external sealing portion with a circular cross-section and located so as to surround a looped outer circumference surface of the internal sealing portion, and a connected portion that connects the internal sealing portion to the external sealing portion across an entire circumference of the loop. The connected portion includes a second positioning portion capable of being fitted in the first positioning portion.

Abstract: A power converter includes a sealing member in a loop shape sealing a space between a sealing surface of a cooler and a sealing surface of a casing. Either one of the sealing surface of the cooler and the sealing surface of the casing is provided with a groove in a loop shape enabling the sealing member to be fitted therein. A first positioning portion is provided on a bottom surface of the groove. The sealing member includes an internal sealing portion with a circular cross-section and located along the bottom surface of the groove, an external sealing portion with a circular cross-section and located so as to surround a looped outer circumference surface of the internal sealing portion, and a connected portion that connects the internal sealing portion to the external sealing portion across an entire circumference of the loop. The connected portion includes a second positioning portion capable of being fitted in the first positioning portion.