Abstract: Electronic components included in a power conversion unit are housed in a closed section of a first unit, and the first unit includes a heat sink exposed to an open section and releases heat transferred from the electronic components. A blower is housed in a first space of a second unit, and at least a portion of an impeller of the blower is exposed to a second space from an opening. A reactor is housed in a third unit. Outside air flows through a flow inlet into an interior of the power conversion device, passes through the open section, a first vent, the second space, the opening, the first space, a second vent, and the third unit, and then is discharged to the exterior of the power conversion device from a flow outlet.

Abstract: Electronic components included in a power conversion unit are housed in a closed section of a first unit, and the first unit includes a heat sink exposed to an open section and releases heat transferred from the electronic components. A blower is housed in a first space of a second unit, and at least a portion of an impeller of the blower is exposed to a second space from an opening. A reactor is housed in a third unit. Outside air flows through a flow inlet into an interior of the power conversion device, passes through the open section, a first vent, the second space, the opening, the first space, a second vent, and the third unit, and then is discharged to the exterior of the power conversion device from a flow outlet.

Abstract: There is provided a vehicle controller that is mounted in a box-shaped manner beneath the floor or on the roof of a vehicle so as to supply electric power to vehicle apparatuses. The vehicle controller is configured with a plurality of functional modules 4; each of the functional modules 4 has at one side thereof an interface side 22 in which a first interface region 5 where signal-line terminals are arranged and a second interface region 6 where power-line terminals are arranged are separated; in each of the interface sides 22, the first interface region 5 is disposed in the vicinity of one and the same end and the second interface region 6 is disposed in the vicinity of the other and the same end; the plurality of functional modules includes a monitoring circuit, an overvoltage protection circuit, and an inverter.

Abstract: A vehicle control device includes plural functional modules each of which is a minimum part unit that contributes to change in input/output potentials, and has an input and an output of one power line or one set of power lines, except for power lines having a same potential as that on an overhead wire side or that on a ground side. The functional module has an interface surface on one side surface, to which both of a signal line and the power line are connected. Each interface surface is divided into a first interface area in which a signal line terminal connected to the signal line is placed, and a second interface area in which a power line terminal connected to the power line is placed. The plural functional modules are adjacently arranged such that the interface surfaces face in a same direction, the first interface areas are located on one end side in common, and the second interface areas are located on the other end side in common.

Abstract: A vehicle control device includes plural functional modules each of which is a minimum part unit that contributes to change in input/output potentials, and has an input and an output of one power line or one set of power lines, except for power lines having a same potential as that on an overhead wire side or that on a ground side. The functional module has an interface surface on one side surface, to which both of a signal line and the power line are connected. Each interface surface is divided into a first interface area in which a signal line terminal connected to the signal line is placed, and a second interface area in which a power line terminal connected to the power line is placed. The plural functional modules are adjacently arranged such that the interface surfaces face in a same direction, the first interface areas are located on one end side in common, and the second interface areas are located on the other end side in common.

Abstract: There is provided a vehicle controller that is mounted in a box-shaped manner beneath the floor or on the roof of a vehicle so as to supply electric power to vehicle apparatuses. The vehicle controller is configured with a plurality of functional modules 4; each of the functional modules 4 has at one side thereof an interface side 22 in which a first interface region 5 where signal-line terminals are arranged and a second interface region 6 where power-line terminals are arranged are separated; in each of the interface sides 22, the first interface region 5 is disposed in the vicinity of one and the same end and the second interface region 6 is disposed in the vicinity of the other and the same end; the plurality of functional modules includes a monitoring circuit, an overvoltage protection circuit, and an inverter.

Abstract: A plurality of electric devices constituting an electric vehicle control device (6) are arranged as a unitary block of a frame and a case. A fixed unit (6a) is arranged at several positions on a horizontal plane between the upper end and the lower end of the electric control device mounted on an electric vehicle (1). The electric devices are arranged so that the center of gravity of the electric vehicle control device (6) is substantially on the horizontal plane of the fixed unit (6a). Since it is possible to suppress vibration during travel of the electric vehicle, it is possible to reduce the strength of the electric vehicle and reduce its weight.