ASSEMBLY COMPRISING A GENERATOR AND ELECTRIC MOTORS, FOR AN AIR-CONDITIONING OR REFRIGERATION SYSTEM OF A VEHICLE

The present invention relates to an assembly (1) comprising: - a compressor (15) intended to be driven by a heat engine (3), - an auxiliary electric motor (16) for driving the compressor (15) when the latter is not or cannot be driven by the heat engine, - a permanent magnet generator (4) having a shaft that can be driven in rotation by the heat engine (3), the generator (4) and the auxiliary electric motor (16) being arranged on this shaft, - one or more electric motors for condensers and/or evaporators (8, 9) of a vehicle air conditioning or refrigeration system, the generator supplying the electric motor(s) (8, 9) directly, the supply voltage of the electric motor(s) being the output voltage of the generator, - a switching device (10) for the power supply of the electric motor(s) (8, 9) of condensers and/or evaporators of the air conditioning or refrigeration system, allowing switching from a power supply by the generator (4) to a power supply by an external electrical network (11), the switching device (10) comprising one or more switches (12) making it possible to control the power supply to the electric motor(s) from the electrical network.