| abstract |
PROBLEM TO BE SOLVED: To improve a heating performance by using not only waste heat of electrical components but also waste heat of a battery in the heating mode and cooling the battery in the cooling mode to enable thermal management of the battery. A vehicle heat pump system according to the present invention is a vehicle heat pump system in which a compressor, an indoor heat exchanger, an outdoor heat exchanger, an expansion means, and an evaporator are connected to a refrigerant circulation line. A chiller coupled in parallel to the line via a first bypass line, a first cooling water line that circulates cooling water by coupling an outdoor heat exchanger and a vehicle electrical component, and a chiller and a vehicle battery. A cooling water flow between the first and second cooling water lines by connecting the second cooling water line for connecting and circulating the cooling water, the first cooling water line and the second cooling water line. And a cooling water adjusting means for adjusting the temperature of the electric component and the battery in the heating mode by using a chiller, and cooling the battery in the cooling mode to enable thermal management of the battery. And [Selection] Figure 2 |