Abstract: A power control unit includes a power device, a heat dissipation member disposed to face the power device with an insulating resin member interposed therebetween, and a plurality of plate-shaped bus bars each of which has one end connected to the power device, in which a plurality of input bus bars connected to an input terminal of the power device are provided as the bus bar, and at least one of the plurality of input bus bars is erected so that a direction along a plate width is aligned with a direction along a normal line of a surface of the heat dissipation member facing the power device, and is disposed with respect to the heat dissipation member with the insulating resin member interposed therebetween.

Abstract: A power control unit includes a power device, a heat dissipation member disposed to face the power device with an insulating resin member interposed therebetween, and a plurality of plate-shaped bus bars each of which has one end connected to the power device, in which a plurality of input bus bars connected to an input terminal of the power device are provided as the bus bar, and at least one of the plurality of input bus bars is erected so that a direction along a plate width is aligned with a direction along a normal line of a surface of the heat dissipation member facing the power device, and is disposed with respect to the heat dissipation member with the insulating resin member interposed therebetween.

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.

Abstract: Provided is a power conversion apparatus that can enhance the strength of the vicinity of an opening through which a connector is exposed, and can prevent water from entering a casing through the opening or reduce such water intrusion. The power conversion apparatus includes a circuit board, a connector mounted on the circuit board, and a lid having an opening to allow the connector to be exposed therethrough and placed over the circuit board and the connector. The lid includes a bead that protrudes from a top plate to enclose an exposed portion of the connector.

Abstract: Provided is a power conversion apparatus that has a simple drain structure of coolers without increasing a size of the power conversion apparatus. The power conversion apparatus includes a housing equipped with a first cooler and a second cooler. One of the first and second coolers has a plurality of coolant openings. The other cooler is constituted by a plurality of members that are connected to each other. The housing includes a plurality of first sealing portions for sealing connecting portions of a plurality of connecting coolant passages that connect to the coolant openings, and second sealing portions for sealing connecting portions between the members. Each of the sealing portions has a first sealing member, a second sealing member, and a drain opening. The drain openings merge into a single drain exit.

Abstract: Provided is a power conversion apparatus that has a simple drain structure of coolers without increasing a size of the power conversion apparatus. The power conversion apparatus includes a housing equipped with a first cooler and a second cooler. One of the first and second coolers has a plurality of coolant openings. The other cooler is constituted by a plurality of members that are connected to each other. The housing includes a plurality of first sealing portions for sealing connecting portions of a plurality of connecting coolant passages that connect to the coolant openings, and second sealing portions for sealing connecting portions between the members. Each of the sealing portions has a first sealing member, a second sealing member, and a drain opening. The drain openings merge into a single drain exit.

Abstract: Provided is a power conversion apparatus that can enhance the strength of the vicinity of an opening through which a connector is exposed, and can prevent water from entering a casing through the opening or reduce such water intrusion. The power conversion apparatus includes a circuit board, a connector mounted on the circuit board, and a lid having an opening to allow the connector to be exposed therethrough and placed over the circuit board and the connector. The lid includes a bead that protrudes from a top plate to enclose an exposed portion of the connector.

Abstract: A power conversion apparatus 2 has a configuration in which a plate-like bus-bar 80, 80? is disposed vertically so that a width direction thereof is set in a vertical direction, electrically connected to positive electric potential of a battery and fixed to a resin case 50 to include a flat plate-like bus-bar body 81, 82, to which positive electric potential of the battery is applied, and a voltage measuring terminal 82 to 85 branched from the bus-bar body 81, 82. The voltage measuring terminal 82 to 85 includes a projecting portion 83 projecting from the bus-bar body 81, 82, an upright portion 84 extending from the projecting portion 83 upward toward a circuit board 100, and a measuring terminal portion 85 that is an upper part of the upright portion 84 and electrically connected to the circuit board 100.

Abstract: A power conversion apparatus has a configuration in which plate-like bus-bars are laminated via an insulating material to define a pair of bus-bars. A laminated bus-bar, in which the pair of bus-bars is disposed vertically so that a width direction thereof is in a vertical direction, includes a pair of voltage measuring terminals that is correspondingly branched from a part of the pair of bus-bars to extend toward a circuit board. The pair of voltage measuring terminals is arranged symmetrically with respect to the pair of bus-bars to extend upward toward the circuit board, while extending in an intersecting direction intersecting with the pair of bus-bars, to be electrically connected to the circuit board.

Abstract: A power conversion apparatus has a configuration in which plate-like bus-bars are laminated via an insulating material to define a pair of bus-bars. A laminated bus-bar, in which the pair of bus-bars is disposed vertically so that a width direction thereof is in a vertical direction, includes a pair of voltage measuring terminals that is correspondingly branched from a part of the pair of bus-bars to extend toward a circuit board. The pair of voltage measuring terminals is arranged symmetrically with respect to the pair of bus-bars to extend upward toward the circuit board, while extending in an intersecting direction intersecting with the pair of bus-bars, to be electrically connected to the circuit board.

Abstract: A power conversion apparatus 2 has a configuration in which a plate-like bus-bar 80, 80? is disposed vertically so that a width direction thereof is set in a vertical direction, electrically connected to positive electric potential of a battery and fixed to a resin case 50 to include a flat plate-like bus-bar body 81, 82, to which positive electric potential of the battery is applied, and a voltage measuring terminal 82 to 85 branched from the bus-bar body 81, 82. The voltage measuring terminal 82 to 85 includes a projecting portion 83 projecting from the bus-bar body 81, 82, an upright portion 84 extending from the projecting portion 83 upward toward a circuit board 100, and a measuring terminal portion 85 that is an upper part of the upright portion 84 and electrically connected to the circuit board 100.