Abstract: A power conversion device including: a circuit board including a first ground constituting a ground of a first circuit and a second ground formed to be electrically separated from the first ground; a second circuit in which a joining portion is formed; a metal base plate provided between the second circuit and the circuit board and provided with an opening portion corresponding to the joining portion; and a housing that stores the circuit board, the second circuit, and the metal base plate and is electrically connected to the second ground of the circuit board and the metal base plate, in which the joining portion of the second circuit is disposed corresponding to the second ground via the opening portion of the metal base plate.

Abstract: Provided is a power conversion device that achieves both downsizing and improvement in cooling efficiency to have improved reliability. The power conversion device includes a power conversion circuit unit which converts DC power into AC power, a flow path including body for letting a refrigerant for cooling the power conversion circuit unit flow, a filter circuit unit which suppresses electric noise from a wire for transmitting the DC power, and a filter case portion which houses the filter circuit unit, where the filter case portion is formed integrally with the flow path including body, and a gap between the filter case portion and the filter circuit unit is filled with a first resin.

Abstract: Provided is a power conversion device capable of suppressing an increase in cost and an increase in size of the device. A control board 113 that includes a connection unit 140 to which a signal connector 114 which transmits a signal is connected, a base member 120 that supports the control board 113 and has conductivity, and a case 110 that accommodates the control board 113 and the base member 120 and is connected to a ground is provided. The base member 120 includes a supporting portion 141 that is connected to one surface of the control board 113, and a first extending portion 130 of which one end is connected to the supporting portion 141 and the other end extends to the case 110 to be connected to the case 110. An electronic component 113a that generates noise is mounted on the control board 113, and the first extending portion 130 and the supporting portion 141 form an electrical path.

Abstract: A power conversion device including: a circuit board including a first ground constituting a ground of a first circuit and a second ground formed to be electrically separated from the first ground; a second circuit in which a joining portion is formed; a metal base plate provided between the second circuit and the circuit board and provided with an opening portion corresponding to the joining portion; and a housing that stores the circuit board, the second circuit, and the metal base plate and is electrically connected to the second ground of the circuit board and the metal base plate, in which the joining portion of the second circuit is disposed corresponding to the second ground via the opening portion of the metal base plate.

Abstract: Provided is a power conversion device capable of suppressing an increase in cost and an increase in size of the device. A control board 113 that includes a connection unit 140 to which a signal connector 114 which transmits a signal is connected, a base member 120 that supports the control board 113 and has conductivity, and a case 110 that accommodates the control board 113 and the base member 120 and is connected to a ground is provided. The base member 120 includes a supporting portion 141 that is connected to one surface of the control board 113, and a first extending portion 130 of which one end is connected to the supporting portion 141 and the other end extends to the case 110 to be connected to the case 110. An electronic component 113a that generates noise is mounted on the control board 113, and the first extending portion 130 and the supporting portion 141 form an electrical path.

Abstract: Provided is a power converter capable of being miniaturized while securing noise resistance and insulation between a power semiconductor module and a drive circuit board.

Abstract: Provided is a power converter capable of being miniaturized while securing noise resistance and insulation between a power semiconductor module and a drive circuit board.

Abstract: An object of the present invention is to achieve reduction in height of an electric power conversion device while maintaining high performance of the electric power conversion device.

Abstract: An object of the present invention is to achieve reduction in height of an electric power conversion device while maintaining high performance of the electric power conversion device.

Abstract: There is provided a power inverter that fixes a connector in which a DC-side connector and an AC-side connector are mechanically combined to a casing in which a power semiconductor module converting a DC current into an AC current is housed, a positive-side DC terminal and a negative-side DC terminal are arranged to be aligned along one side, which is formed in the widthwise direction, of one side face of the casing, and a U-phase side terminal, a V-phase side terminal, and a W-phase side terminal are arranged to be aligned along one side, which is formed in the longitudinal direction, of one side face of the casing.

Abstract: There is provided a power inverter that fixes a connector in which a DC-side connector and an AC-side connector are mechanically combined to a casing in which a power semiconductor module converting a DC current into an AC current is housed, a positive-side DC terminal and a negative-side DC terminal are arranged to be aligned along one side, which is formed in the widthwise direction, of one side face of the casing, and a U-phase side terminal, a V-phase side terminal, and a W-phase side terminal are arranged to be aligned along one side, which is formed in the longitudinal direction, of one side face of the casing.