HEAT PUMP SYSTEM IN VEHICLE

摘要

PURPOSE: A heat pump system for vehicles is provided to assist an outdoor heat exchanger in smoothly absorbing heat by resolving the icing phenomenon. CONSTITUTION: A heat pump system for vehicles comprises a compressor(110), an indoor heat exchanger(120), an expansion valve(130), an outdoor heat exchanger(140), a valve(150) for switching a flow path, a first radiator, and a second radiator(160,170). The first and second radiators are respectively placed in upper and lower parts of the outdoor heat exchanger. The first and second radiators radiates of the coolants in electrical components(10). A distributing valve(180) is installed in connectors of the first and second radiators. The distributing valve controls the coolants supplied to the first and second radiators. The coolants are supplied to the first and second radiators by the distributing valve during the heating mode or defrosting mode.