ELECTRIC OR HYBRID TRACTION VEHICLE EQUIPPED WITH AN AIR CONDITIONING SYSTEM, WITH HEAT RECOVERY FROM COOLING OF ELECTRICAL AND/OR ELECTRONIC COMPONENTS

An electric or hybrid traction vehicle (1) is provided with a passenger compartment conditioned by means of an air conditioning system (15), and with electrical/electronic components (8) which are cooled by means of a waste heat dissipation and recovery system (35); such system (35) transfers the recovered heat to an additional heat exchanger (28) for heating and/or post-heating an air flow, which is conveyed towards the passenger compartment (11) by means of an aeraulic duct (20); the additional exchanger (28) is arranged in series with, and downstream of, an evaporator (27) of a refrigerating assembly (30), which cools the air flow in the aeraulic duct (20); by means of the heat recovered from cooling the electrical/electronic components, it is possible to post-heat the air for summer conditioning for achieving temperature setpoint and humidity setpoint.