Abstract: A power conversion device includes an inverter and a controller that controls the inverter. The inverter includes a first inverter circuit and a second inverter circuit that are connected in parallel to a power source. A first output terminal of a full-bridge inverter unit and a first terminal are connected to each other. A second output terminal of the full-bridge inverter unit and a second terminal are connected to each other. The second output terminal of the full-bridge inverter unit and the first output terminal of the full-bridge inverter unit are connected to each other at a connecting point. The connecting point and a neutral point terminal are connected to each other.

Abstract: A power conversion device includes an inverter, a state detector, a distribution board configured to distribute power output from the inverter such that single-phase three-wire alternating-current power is supplied to a first power supply port and single-phase two-wire alternating-current power is supplied to a second power supply port and a third power supply port, and processing circuitry configured to control the inverter and the distribution board. The processing circuitry is configured to determine whether there is an anomaly in one of a first inverter circuit and a second inverter circuit based on a detection result of the state detector, and when determining that there is an anomaly in one of the first inverter circuit and the second inverter circuit, stop the inverter circuit determined to have the anomaly and switch the first switch of the distribution board to an open state.

Abstract: A vehicle on-board power conversion device includes an inverter configured to convert power output from a power supply of a vehicle and processing circuitry configured to control the inverter. The inverter includes a first inverter circuit configured to convert power, output from the power supply, into single-phase two-wire alternating-current power and supply the single-phase two-wire alternating-current power to the one or more interior power supply ports, and a second inverter circuit configured to convert power, output from the power supply, into single-phase two-wire alternating-current power and supply the single-phase two-wire alternating-current power to the one or more exterior power supply ports. The processing circuitry is configured to determine whether the vehicle is traveling, and, when determining that the vehicle is traveling, stop or limit supply of power to at least one exterior power supply port of the one or more exterior power supply ports.

Abstract: A cooling device includes an upper flat plate-shaped member and a lower flat plate-shaped member disposed with a predetermined interval therebetween, a heat radiation fin configured to extend from the upper flat plate-shaped member toward the lower flat plate-shaped member and to form a flow path through which air flows between the upper flat plate-shaped member and the lower flat plate-shaped member, and a centrifugal fan having an inlet as an opening and an outlet configured to be open in a direction intersecting an opening direction of the inlet, wherein the centrifugal fan is disposed at a position separated from the upper flat plate-shaped member by a predetermined interval so that the outlet is open toward the flow path, and a protruding part that protrudes toward the centrifugal fan is provided on the upper flat plate-shaped member.

Abstract: A heatsink is used with a fluid flow generator that rotates about a central axis extending vertically. The heatsink includes a main body section having a top surface facing the fluid flow generator in a vertical direction, and fins that extend upward from the top surface so as to define a plurality of flow passages. The plurality of flow passages form a plurality of fluid paths, each of which has an inlet for the fluid discharged from the fluid flow generator to flow in, and an outlet for discharging to outside the fluid that has entered through the inlet. At least one of the plurality of fluid paths has a first branch section for branching from a first fluid path on downstream of the inlet, and a first joining section for joining a second fluid path having another inlet, on downstream of the first branch section.

Abstract: A heatsink, which is used with a fluid flow generator that rotates about a central axis extending vertically to generate a flow of fluid, includes a main body section having a top surface facing the fluid flow generator in a vertical direction, and fins that extend upward from the top surface so as to define a plurality of flow passages. Four regions defined by an X axis and a Y axis, which cross each other at an intersection between the central axis and the top surface and extend in an extending direction of the top surface, are referred to as a first region, a second region, a third region, and a fourth region, in order in a direction opposite to a rotation direction of the fluid flow generator.