Ventilateur comportant un dispositif de transformation d'un courant electrique triphase

A fan including a rotary electric machine and a supply module able to connect the rotary electric machine to a power grid supplying a three-phase AC current;

• the supply module including a conversion device able to adapt the three-phase AC current supplied by the power grid to the power supply of the rotary electric machine ;
• the conversion device includes three input terminals connected to the electric supply grid and at least three output terminals connected to the rotary electric machine ;
• wherein the conversion device is made up of three separate single-phase autotransformers that are magnetically uncoupled, each single-phase autotransformer being connected to one of the input terminals and at least one of the output terminals, and being able to modify the voltage values of a single-phase input AC current coming from the corresponding input terminal to obtain a modified output current on the or each output terminal corresponding to that single-phase autotransformer.

The fan according to claim 23, wherein the single-phase autotransformers are uniformly spaced around the outer wall of the rotary electric machine.