| 摘要 |
<p>PROBLEM TO BE SOLVED: To effectively cool batteries, without applying excessive loads to the batteries under any circumstances, as when the batteries are being charged or when a vehicle is traveling or parked, or the like. SOLUTION: A battery cooling device of an electric vehicle, which includes a battery storage chamber storing batteries 6 serving as the power source and a motor M for driving an intake fan 9 taking air into the battery storage chamber, also includes an auxiliary battery SC for driving the motor M and switches S4a, S4b switching the batteries 6 to the auxiliary battery SC or vice versa to use them as the drive source for the motor M.</p> |
