US Patent 8098044 Vehicle charging system, vehicle charging device and electric vehicle

When a connector portion is coupled, switching dampers block a vehicle compartment air intake duct and a vehicle compartment air discharge duct, respectively. By a blowing fan, the air-conditioned air supplied through an air-conditioned air supply conduit flows through an outside air intake duct, a power supply unit, an outside air discharge duct, and an air-conditioned air discharge conduit in turn, and cools a battery.