Heat pump system for air conditioning a vehicle and method for operating such a heat pump system

The invention relates to a heat pump system (2) for air conditioning a vehicle, in particular electric or hybrid vehicle, with an air conditioner (32) comprising a heating heat exchanger (30) and an air conditioner evaporator (46), with a refrigerant circuit (22), in said air conditioner evaporator (46) and a capacitor (20) are arranged, with an NT-circuit (4), in which at least one electric power component (18) is arranged, wherein the heat pump system (2) between a cooling operation and a heating operation is switchable, characterized in that in the NT-circuit (4), a capacitor (20) for transferring heat in the NT-circuit (4) is integrated and a NT-cooler (8), that a changeover valve (24) for , switching between heating and cooling operation is arranged that in the heating mode, the condenser (20) heat to the NT-circuit (4) and from there into a heating circuit (36) outputs in which is arranged the heating heat exchanger (30), and that in the Kuhlb peration the capacitor (20) heat via the NT-circuit (4) delivers to the NT-cooler (8). Desweitern, the invention relates to a method for operating such a heat pump system (2).