Abstract: A cooling device for an electrical apparatus mounted on a rear side of a vehicle having a cooling airflow intake port in the vehicle interior at a lower section of a rear windshield, a supply unit which supplies a cooling airflow through the cooling airflow intake port to the electrical apparatus, a blocking unit for blocking solar radiation from coming onto the cooling airflow intake port through the rear windshield, and a control unit to control the blocking unit based on at least one of intensity of the solar radiation coming onto the cooling airflow intake port and a temperature of the cooling airflow.

Abstract: An ECU executes a program including a step of operating a battery cooling fan motor if a battery temperature is higher than a cooling required temperature, a step of sensing a cooling airflow temperature, a step of sensing solar radiation intensity onto a rear package tray, and a step of operating a motor serving as an actuator which closes a rear sunshade identified as a solar radiation blocking tool if the cooling airflow temperature is greater than a temperature threshold value and the solar radiation intensity is greater than a solar radiation intensity threshold value.