The invention discloses a high-safety electric vehicle which comprises a vehicle body and a battery pack. The battery pack comprises a battery unit and a battery pack shell; the high-safety electric vehicle further comprises a polyurethane bin, a carbon dioxide bin, a brittle pipe and a shell. The polyurethane bin is filled with flame-retardant polyurethane; the carbon dioxide bin is filled with liquid carbon dioxide; the shell is sleeved on the battery pack shell; the brittle pipes are made of hard plastic, are densely distributed between the battery pack shell and the shell and are fixedly connected to the battery pack shell and the shell; the brittle pipes comprise a first brittle pipe and a second brittle pipe; one end of the first brittle pipe is closed, and the other end communicateswith the polyurethane bin; one end of the second brittle pipe is closed, and the other end is communicated with the carbon dioxide bin; when the battery pack shell is damaged and cracks occur in thebattery pack shell during collision of the electric vehicle, the brittle pipes at the cracks are broken at the same time, the flame-retardant polyurethane and the carbon dioxide are sprayed out from the broken positions of the brittle pipes to seal the cracks, and oxygen is prevented from entering to reduce the spontaneous combustion risk of batteries.
本申请公开了一种高安全性电动车,包括车体、电池组;电池组包括电池单元和电池组外壳;高安全性电动车还包括聚氨酯仓、二氧化碳仓、脆性管、壳体;聚氨酯仓内部充有阻燃聚氨酯;二氧化碳仓内充有液态二氧化碳;壳体套装在电池组外壳上;脆性管的材质为硬塑料,其密布在电池组外壳和壳体之间并固定连接在电池组外壳以及壳体上;脆性管包括第一脆性管和第二脆性管;第一脆性管一端封闭,另一端与聚氨酯仓连通;第二脆性管一端封闭,另一端与二氧化碳仓连通;电动车在碰撞时损伤电池组外壳并造成电池组外壳出现裂缝时,裂缝处的脆性管同时破裂,阻燃聚氨酯和二氧化碳从脆性管破裂处喷出,封闭裂缝,防止氧气进入进而降低电池自燃风险。
High-safety electric vehicle
一种高安全性电动车
2021-03-19
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |