HEAT PUMP SYSTEM FOR A VEHICLE

A heat pump system for a vehicle is provided so that the thermal energy generated from the refrigerant when condensing and evaporating the refrigerant is selectively heat-exchanged with the coolant. The vehicle interior temperature is adjusted by using the heat-exchanged low-temperature or high-temperature coolant. The heating efficiency of the vehicle is improved by selectively using the ambient air heat, the waste heat of the electrical component, and the waste heat of the battery module at the time of heating the vehicle interior. The heating efficiency of the vehicle is further improved by increasing the overall travel distance of the vehicle by efficiently adjusting the temperature of the battery module so that the optimal performance of the battery module may be achieved.