Abstract: A power converter includes: two switching elements; a positive electrode conductive plate: a negative electrode conductive plate; a mid-point conductive plate; a first heat sink; and a second heat sink. The positive electrode conductive plate is connected to a high-potential terminal of a series connection of the two switching elements, and the negative electrode conductive plate is connected to a low-potential terminal of the series connection. The mid-point conductive plate is connected to a middle point of the series connection. The first heat sink faces the positive electrode conductive plate and the negative electrode conductive plate with a first isolating layer interposed therebetween, and is connected to a ground terminal. The second heat sink faces the mid-point conductive plate with a second isolating layer interposed therebetween, and is isolated from the ground terminal.

Abstract: A power converter includes: two switching elements; a positive electrode conductive plate: a negative electrode conductive plate; a mid-point conductive plate; a first heat sink; and a second heat sink. The positive electrode conductive plate is connected to a high-potential terminal of a series connection of the two switching elements, and the negative electrode conductive plate is connected to a low-potential terminal of the series connection. The mid-point conductive plate is connected to a middle point of the series connection. The first heat sink faces the positive electrode conductive plate and the negative electrode conductive plate with a first isolating layer interposed therebetween, and is connected to a ground terminal. The second heat sink faces the mid-point conductive plate with a second isolating layer interposed therebetween, and is isolated from the ground terminal.

Abstract: The present invention provides, as one aspect, a motor including a rotor fixed to a rotating shaft, a stator provided around the outer periphery of the rotor via a gap, and a power converter which is connected to polyphase windings arranged in slots formed in the stator. The power converter performs control by which current from a DC power source is converted to polyphase alternating current which flows to the polyphase windings. The motor includes a housing which is fixed to the outer periphery of the stator via an insulating layer. The stator is connected to a positive electrode side bus, which is connected to a positive electrode of the DC power source, or a negative electrode side bus, which is connected to a negative electrode of the DC power source.