Heat exchange device for a motor vehicle, combining a thermoelectric module and a heat exchanger with circulation of a fluid

A cooling system comprising:

• a device having a thermoelectric module with a Peltier effect which is thermally connected to one of a plurality of large faces of a casing which accommodates a circuit of heat transfer fluid,
• wherein in a direction of circulation of heat transfer fluid through the circuit, the circuit comprises at least two fluid paths which are arranged in series and provided in different zones of the casing, including at least one upstream fluid path provided inside a first zone and at least a downstream fluid path provided inside a second zone,
• the casing being delimited by a first large face which is in direct thermal contact with the thermoelectric module and by a second large face which is arranged to be in direct thermal contact with an electrical component;
• and
• the electrical component of a motor vehicle, the electrical component being in direct thermal contact with the second large face which delimits the casing.