The invention discloses a drain valve for a battery pack, the battery pack and a vehicle. The drain valve comprises a barrel-shaped shell, a plurality of fins are arranged on the inner wall of the barrel-shaped shell at intervals in the circumferential direction, and the fins are suitable for being turned over to point to any end of the shell; a plug slidably disposed within the housing, a plurality of fins engaged with a circumferential outer wall of the plug. A breathing channel is configured within the plug, and a discharge channel is formed between the plug and the housing. And a sliding sealing piece is arranged on the circumferential outer wall of the plug. The drain valve is configured such that in a first state, the plurality of fins point to a first end of the housing, and the sliding seal is between the housing and the plug to cut off the drain channel; in the second state, the plurality of fins are turned over to a second end directed toward the housing, the plug moves until the sliding seal is outside the housing, and the discharge channel is open. The exhaust opening threshold value of the exhaust valve is determined by the folding performance of the fins protected by the shell, and therefore the exhaust opening threshold value of the exhaust valve is kept stable.

    本申请公开了用于电池包的排放阀、电池包以及车辆。该排放阀包括:筒状的壳体,其内壁上周向间隔地设置有多个翅片,多个翅片适于被翻折指向壳体的任一端部;可滑动地设置在壳体内的塞子,多个翅片与塞子的周向外壁相接合。在塞子内构造有呼吸通道,在塞子和壳体之间形成有排放通道。在塞子的周向外壁上设置有滑动密封件。排放阀配置为在第一状态中,多个翅片指向壳体的第一端部,滑动密封件处于壳体和塞子之间而将排放通道截止;在第二状态中,多个翅片翻折到指向壳体的第二端部,塞子运动到滑动密封件处于壳体之外,排放通道导通。本申请的排放阀的排气开启阈值由受壳体保护的翅片的翻折性能决定,因此排放阀的排气开启阈值保持稳定。


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    Title :

    Drain valve for battery pack, battery pack and vehicle


    Additional title:

    用于电池包的排放阀、电池包以及车辆


    Contributors:
    YUE WENFENG (author) / GU WEISI (author) / ZHAO JINGJING (author) / YANG MIN (author) / ZHANG CUICUI (author) / TAN SIQING (author) / XIA JUNYUAN (author)

    Publication date :

    2024-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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



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