The invention relates to the technical field of batteries, in particular to a liquid leakage device, a battery pack and a vehicle, the liquid leakage device comprises a device body, a valve core, an elastic piece and an expansion part; a valve cavity is formed in the device body, the valve element is arranged in the valve cavity, the two ends of the valve element are provided with a first abutting portion and a second abutting portion respectively, the elastic piece and the expansion portion are arranged on the valve element in a sleeving mode, the elastic piece abuts against the first abutting portion, and the expansion portion abuts against the second abutting portion. The device body and the first abutting portion define a first containing portion containing an elastic piece, the elastic piece is compressed in the first containing portion, the second abutting portion is connected with the device body in a sealed mode through a first sealing piece, and the device body and the second abutting portion define a second containing portion containing an expansion portion. A liquid leakage hole communicated with the second accommodating part is formed in the device body; the expansion part expands after absorbing the liquid, so that the second abutting part is separated from the device body. The liquid leakage device can quickly respond when the cooling liquid leaks, is high in reliability, and improves the safety performance of the whole vehicle.

    本公开涉及电池技术领域,尤其涉及一种漏液装置、电池包及车辆,包括:装置本体、阀芯、弹性件和膨胀部;装置本体内形成有阀腔,阀芯设置于阀腔内,阀芯的两端分别设置有第一抵接部和第二抵接部,弹性件和膨胀部套设于阀芯上,弹性件与第一抵接部抵接,膨胀部与第二抵接部抵接;装置本体与第一抵接部围合形成容纳有弹性件的第一容纳部,弹性件在第一容纳部内压缩,第二抵接部通过第一密封件与装置本体密封连接,装置本体与第二抵接部围合形成容纳有膨胀部的第二容纳部,装置本体上开设有与第二容纳部连通的漏液孔;膨胀部吸收液体后膨胀,以使第二抵接部与装置本体分离。该漏液装置能在冷却液泄露时迅速反应,可靠性高,提高整车的安全性能。


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    Title :

    Leakage device, battery pack and vehicle


    Additional title:

    漏液装置、电池包及车辆


    Contributors:

    Publication date :

    2024-12-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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