| 摘要 |
PROBLEM TO BE SOLVED: To provide an extinction structure of an electric vehicle configured to supply an extinguishing agent from the outside to immerse the whole of a battery even in various situations where the electric vehicle is left on the road, for example.SOLUTION: In the extinction structure of an electric vehicle, an extinguishing agent inlet 38 to be connected to an extinguishing agent outlet 42 of an extinguisher is provided in cooling liquid circulation path sections 31, 32 arranged outside a battery case 13 of a liquid-cooling type battery cooling device 22, and a fragile section 43 which is broken by pressure of the extinguishing agent supplied from the inlet into the cooling liquid circulation paths is provided in a part of the cooling liquid circulation path sections arranged in the battery case. When the extinguishing agent is supplied from the extinguisher to the cooling liquid circulation paths through the extinguishing agent inlet, the fragile section is broken by the pressure of the extinguishing agent, the extinguishing agent is supplied into the battery case through the broken part, to fill the battery case with a large amount of extinguishing agent, thereby immersing the whole of a battery 15 in the battery case. |
