Heat-energy exchange device comprising two plate heat exchangers

Heat-energy exchange device having a first and a second plate heat exchanger, each plate heat exchanger being configured to allow exchanges of heat energy between at least two heat-transfer fluids at different temperatures. The exchange device further includes a distribution member sandwiched between the first and second plate heat exchangers, the distribution member including a series of channels made within it, the channels connecting inlets and outlets of heat-transfer fluid of the first and second plate heat exchangers to connection orifices positioned on the distribution chamber.