To improve cooling capability, power conversion apparatus 1 that converts a direct current voltage into an alternating current voltage includes: first substrate 100 on which power conversion circuit 2 is mounted; second substrate 200 on which driving circuit 3 that drives power conversion circuit 2 is mounted; and shield plate 300 that is disposed between first substrate 100 and second substrate 200, and first substrate 100 is a metal substrate.

A power supplying-side terminal (38) has a power supplying-side hanging portion (38H) extending toward a surface of the circuit board (31), a power supplying-side extending portion (38E) bent from the power supplying-side hanging portion (38H) and extending outwards along the surface of the circuit board (31) and a power supplying-side standing portion (38S) bent from the power supplying-side extending portion (38E) and extending in a direction away from circuit board (31). A power receiving-side terminal (39) has a power receiving-side extending portion (39E) extending outwards along the surface of the circuit board (31) and a power receiving-side standing portion (39S) bent from the power receiving-side extending portion (39E) and extending in the direction away from circuit board (31). The power supplying-side standing portion (38S) and the power receiving-side standing portion (39S) overlap each other, and connected to each other so as to have electrical continuity.

A drive device for an electrically drivable vehicle includes a housing body with a first fastening device, a cover which, after release of a second fastening device interacting with the first fastening device for fastening the cover to the housing body, is movable from a first position, in which the cover covers live components of the drive device during operation of the drive device, into a second position, in which the components are exposed, and a first connection device, to which a second connection device is connectable for establishing an electrically conductive connection and/or a data connection. The first fastening device and the first connection device are arranged such that in the first position access to the second fastening means in its position fastening the cover is only possible after the second connection device has been released from the first connection device.

An electronic control device (ECU) is provided for an electric power and/or steer by wire steering system (EPS). The ECU includes a printed circuit board (PCB) carrying electronic components, electronic components on a lower side and on an upper side of the PCB, a heat sink element on the lower side of the PCB, and a cover on the upper side of the PCB. At least one cooling track element is provided as an at least partly over-molded insert within the cover in order to conduct heat from at least one electronic component on the upper side of the PCB to the heat sink element on the lower side of the PCB and/or to the air outside of the ECU.

The fire shield enclosure makes use of a set of external metal shields that can be attached to a wall mounted variable frequency drive (VFD) in the field either before or after the VFD has been installed for the purpose of providing adequate protection from a fire as defined by a UL2043: Fire Test for Heat and Visible Smoke Release (UL2043 fire test). The fire shield enclosure pertains to a VFD for which may use a polymer material as an integral part of its enclosure housing.

An electrical or electronic device with a housing which includes a rear wall and a side wall peripherally surrounding the rear wall, contains a first region and a second region. The first region includes a shielding from the second region with respect to electromagnetic compatibility (EMC). The housing includes a stepped projection on an inner side of the side wall and/or of the rear wall. The shielding for electromagnetic compatibility includes a shielding plate, by means of which the first region is delimited from the second region. An electrical connection of the shielding plate to the side wall and/or to the rear wall is formed in that a peripheral region that delimits the shielding plate areally overlaps the stepped projection, at least along most of its length, and is fastened on it.

A drive unit for an electrical power-assisted steering system of a motor vehicle may include an electric motor with a stator housing to which a control housing, in which a control circuit board is arranged, is attached, and with a connecting unit, attached to the stator housing, which has electrical connecting elements and at least one positioning element. The connecting elements are electrically connected to the electric motor and to the control circuit board. The positioning element interacts with the control circuit board for the purpose of relative positioning. To enable simpler and more secure mounting, the positioning element interacts with the control housing for the purpose of relative positioning.

A power module apparatus includes a power substrate, at least one power device electrically connected to the power substrate and a gate-source board mounted relative to the power substrate, the gate-source board electrically connected to the at least one power device, a housing secured to the power substrate, and a clamping circuit electrically connected to the at least one power device. The clamping circuit being configured to reduce a voltage charge up at a gate of the at least one power device to within 8 V of a desired voltage.

A substrate and a first circuit board each have an upper side and a lower side. The substrate lower side is connected to a cooling body. On the upper side of the substrate, first electronic switching elements connect an alternating current potential at a phase terminal to a high direct current potential at a first potential terminal and to a low direct current potential at a second potential terminal. Second electronic switching elements connect the alternating current potential to a middle direct current potential at a third potential terminal. The substrate is spaced from the first circuit board under the first circuit board lower side. The upper side of the substrate faces toward the first circuit board. The second switching elements are at least on the upper side of the first circuit board, possibly additionally also on the lower side of the first circuit board.

In an in-vehicle structure described in the present specification, an electric-power converter is fixed onto a transaxle and positioned in front of a cowl top. The electric-power converter includes a capacitor configured to restrain a high-frequency fluctuation in a voltage of electric power supplied from a battery, and a discharge circuit configured to discharge the capacitor. A connector (a signal connector) to which a wiring harness for communication of a discharge instruction signal to operate the discharge circuit at a time of a collision is connected is provided on a side face of the electric-power converter, the side face of the electric-power converter being facing in a vehicle width direction.