Abstract: An electric device includes a first power supply portion having a first conductive section configured to electrically connect a power source and an electrical component and a second conductive section configured to be integrally connected to the first conductive section and extend away from the first conductive section, a second power supply portion connecting to the second conductive section, and a capacitor. A thermal resistance per unit length in a second extension direction of the second power supply portion is higher than a thermal resistance per unit length in a first extension direction of the first power supply portion.

Abstract: An electrically driven vehicle (2) is equipped with a motor (9) for running, a first battery (4), a second battery (3), a liquid-cooled cooler that cools the first battery, and a temperature adjuster. The first battery is configured to supply an electric power to the motor, and has a first capacity and a first output. The second battery is configured to supply an electric power to the motor, and has a second capacity that is different from the first capacity, and a second output that is different from the first output. The temperature adjuster is configured to adjust a temperature of the second battery using a gas as a heat medium.

Abstract: An electrically driven vehicle (2) is equipped with a motor (9) for running, a first battery (4), a second battery (3), a liquid-cooled cooler that cools the first battery, and a temperature adjuster. The first battery is configured to supply an electric power to the motor, and has a first capacity and a first output. The second battery is configured to supply an electric power to the motor, and has a second capacity that is different from the first capacity, and a second output that is different from the first output. The temperature adjuster is configured to adjust a temperature of the second battery using a gas as a heat medium.

Abstract: A cooling system for cooling a heat source includes a flow channel through which liquid medium cooling the heat source is circulated, and a pump provided on the flow channel for circulating the liquid medium. The flow channel includes a plurality of branches arranged between an upstream side and a downstream side of the heat source in parallel to a distribution direction of the liquid medium. The cooling system further includes a control device for detecting an abnormality occurred in the cooling system by detecting an imbalance among flow rates of the liquid medium flowing through the plurality of branches, respectively.