US Patent 11305607 Heat pump system for vehicle

A heat pump system for a vehicle may adjust a temperature of a battery module by use of one chiller that performs heat exchange between a refrigerant and a coolant and improves heating efficiency by use of waste heat generated from an electrical component, including: a cooling apparatus of circulating a coolant in a coolant line to cool at least one electrical component provided in the coolant line; a battery cooling apparatus of circulating the coolant to the battery module; a chiller for heat exchanging the coolant with a refrigerant to control a temperature of the coolant; a heating apparatus that heats an interior of the vehicle using the coolant; and a first, second, third, and fourth connection line.