DEVICE FOR COOLING ELECTRICAL APPARATUS

A cooling device for electric equipment includes a cooling unit (30) for cooling an inverter element (110) as a heat source. The cooling unit (30) has a surface (131) on which the inverter element (110) is provided and a back surface (136) disposed on a back side of surface (131), and includes a heat mass (130) for transferring heat generated by the inverter element (110), an air-cooling fin (140) provided on the back surface (136) and radiating heat transferred through the heat mass (130), and an air-conditioner coolant pipeline (120) provided on the surface (131) and forming a coolant passage (32) through which the coolant for vehicle cabin air-conditioning flows. With such configuration, a cooling device for electric equipment excellent in the cooling efficiency is achieved.