Abstract: A power converter includes a case body provided with a device main body part having a power conversion part accommodated therein, a lid member covering an aperture of the case body, a first substrate fixed to the case body, a second substrate fixed to the lid member, the first substrate and the second substrate being fixed therein and a connection member electrically connecting the first substrate and the second substrate.

Abstract: A power converter includes a case body provided with a device main body part having a power conversion part accommodated therein, a lid member covering an aperture of the case body, a first substrate fixed to the case body, a second substrate fixed to the lid member, the first substrate and the second substrate being fixed therein and a connection member electrically connecting the first substrate and the second substrate.

Abstract: A power converter includes a converter casing made of an assembly of a first case body and a second case body. The first case body has a bottom plate. The second case body has a top plate. Side plates are arranged between the top plate and the bottom plate. A capacitor is disposed in the converter casing and includes a capacitor casing and a capacitor device which is sealed with potting resin so as to have a potting surface through which the potting resin is exposed outside the capacitor casing. The capacitor is fixed on the bottom plate with the potting surface oriented perpendicular to a normal direction of the bottom plate. A connector is provided which mechanically connects the bottom plate and the top plate and is located away from the side plates, thereby enhancing the suppression of mechanical vibration of the capacitor on the bottom plate.

Abstract: A power converter includes a converter casing made of an assembly of a first case body and a second case body. The first case body has a bottom plate. The second case body has a top plate. Side plates are arranged between the top plate and the bottom plate. A capacitor is disposed in the converter casing and includes a capacitor casing and a capacitor device which is sealed with potting resin so as to have a potting surface through which the potting resin is exposed outside the capacitor casing. The capacitor is fixed on the bottom plate with the potting surface oriented perpendicular to a normal direction of the bottom plate. A connector is provided which mechanically connects the bottom plate and the top plate and is located away from the side plates, thereby enhancing the suppression of mechanical vibration of the capacitor on the bottom plate.

Abstract: A power conversion apparatus includes at least one semiconductor module including a main electrode terminal, a capacitor including at least one capacitor terminal member connected to the main electrode terminal of the semiconductor module, and an apparatus case housing the semiconductor module and the capacitor. The capacitor includes a capacitor body disposed in a capacitor case and shielded by a potting resin, the capacitor terminal member projecting from a potting surface of the capacitor body. The capacitor is fixed to the capacitor case such that the potting surface faces the semiconductor module. The capacitor terminal member is supported by and fixed to a fixing/supporting member fixed to the apparatus case.

Abstract: An inverter device has a control unit, a power unit, and a capacitor unit. The power unit has six semiconductor devices. Each semiconductor device has a semiconductor module and a pair of heat sinks disposed in both sides of the semiconductor module. The heat sinks are arranged in a ventilation path of cooling air. An, accommodation chamber of a control unit 1b communicates with the ventilation path of the cooling air.

Abstract: In a semiconductor apparatus, a semiconductor module containing semiconductor elements is enclosed between a pair of heat sinks which are held attached together by spring clips. Each heat sink has one side thermally coupled to a corresponding main face of the semiconductor module and has an array of primary fins and a pair of secondary fin protruding from the other side, with the secondary fins being located at opposing ends of the array of primary fins, beyond the outermost primary fins. At least part of each secondary fin is made thicker than each primary fin, to provide greater strength and greater thermal mass for each secondary fin than each primary fin.