Patent attributes
A battery cooling system for a vehicle, to warm up or cool down a battery installed in the vehicle by selectively using a refrigerant and a coolant according to a mode of the vehicle may include a heat exchanger, connected with a refrigerant line of a heat pump system through first and second connection lines, connected with a cooling line of a cooling system for an electric device through a battery cooling line, and configured to selectively eat-exchange between the coolant and refrigerant introduced into the heat exchanger, two first valves disposed in the battery cooling line with the heat exchanger disposed therebetween, and selectively connecting the cooling line and the battery cooling line, a first branch line connected with the refrigerant line through a second valve, and a second branch line selectively connecting the refrigerant line and the second connection line through a third valve and a fourth valve.
