Heat pump system for vehicle with battery and electronic component cooling

A heat pump system for a vehicle, comprising:

• a battery coolant line connected to a battery module and a coolant flows in the battery coolant line;
• a cooling device having a radiator and a first water pump connected to a coolant line and the cooling device is configured to circulate the coolant in the coolant line to cool electrical equipment, wherein the cooling device is selectively connected to the battery coolant line via a first valve;
• a first chiller disposed in the battery coolant line, to be connected to a refrigerant line of an air conditioner via a first connecting line, and the first chiller is configured to adjust a temperature of the coolant by selectively exchanging heat between the coolant and a refrigerant flowing into the first chiller;
• a second chiller selectively connected to the coolant line via a second valve and selectively connected to the refrigerant line via a second connecting line, and the second chiller is configured to increase a temperature of the coolant by selectively exchanging heat between the coolant and the refrigerant flowing into the second chiller;
• and
• an integrated control valve connected to the refrigerant line, the first connecting line, and the second connecting line to adjust a flow direction of the refrigerant circulated in the air conditioner and the integrated control valve is configured to selectively expand the refrigerant passing through the inside of the integrated control valve.