Inverter device

An inverter device (DO) intended to convert a DC voltage into one phase of an AC voltage with a predetermined frequency, the inverter device (DO) comprising a single-phase inverter (O1, O2, O3) able to deliver the phase, the single-phase inverter comprising a toric output inductor, the inverter device comprising a support (S) radially surrounding a cooling channel (CA) extending longitudinally along an axis x and in which a cooling liquid is intended to flow along the axis x, the toric inductor being mounted on the support (S) so as to radially surround the cooling channel (CA) so as to be able to be cooled by the cooling liquid when this flows in the cooling channel (CA), wherein the inverter device (DO) is intended to convert a DC voltage into multiple phases of a polyphase AC voltage with a predetermined frequency, the inverter device comprising multiple single-phase inverters, each of the single-phase inverters being able to deliver one of the phases of the polyphase AC voltage, wherein toric output inductors are juxtaposed along the axis x, wherein the support (S) comprises a tubular support (SI) for switches surrounding the axis x and is radially defined by a first surface (S1) defining the cooling channel (CA) and by a second surface (S2) radially surrounding the first surface (S1), the power switches being arranged around the tubular support, bearing on the second surface (S2).