The invention is applicable to the technical field of batteries, and provides a protection plate, the protection plate comprises an upper skin, a detection assembly and a lower skin which are sequentially stacked, and the detection assembly comprises an anti-impact layer, a buffer layer and a detection layer; the anti-impact layer is located above the buffer layer, the buffer layer, the anti-impact layer and the detection layer are arranged in a stacked mode, the detection layer comprises a detection circuit, the detection circuit comprises a detection wire, and when the protection plate is impacted, the increase of the static pressure strength of the buffer layer improves the strain of the anti-impact layer at the impacted position, so that the detection wire is broken by an impact pit formed by impact; after the detection wire is broken by punching, the detection circuit outputs an alarm signal, and the static pressure strength range of the buffer layer is 1-50 MPa. According to the protection plate provided by the embodiment of the invention, the static pressure strength range of the buffer layer is regulated and controlled to be 1-50 MPa, when the protection plate is subjected to external impact, the impact pits with large fall formed by the buffer layer can thrust and break the detection wire, and then the damage detection sensitivity of the protection plate under the condition of high-energy impact is improved.

    本申请适用于电池技术领域,提供了一种防护板,上述防护板包括依次层叠设置的上蒙皮、检测组件及下蒙皮,检测组件包括抗冲层、缓冲层及检测层;抗冲层位于缓冲层上方,缓冲层、抗冲层与检测层层叠设置,检测层包括检测电路,检测电路包括检测导线,在防护板受到冲击时,缓冲层的静压强度的增加提高了抗冲层在受冲击处的应变,以使得冲击形成的冲击坑冲断检测导线,在检测导线被冲断后,检测电路输出报警信号,其中,缓冲层静压强度范围为1MPa~50MPa。本申请实施例提供的防护板通过将缓冲层的静压强度范围调控在1MPa~50MPa,当防护板受到外部冲击时,缓冲层形成的具有较大落差的冲击坑会冲断检测导线,进而提高防护板受到高能冲击情况下的损伤检测灵敏度。


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    Title :

    Protective plate


    Additional title:

    一种防护板


    Contributors:
    LUO CHANGJIE (author) / SHEN RUILIN (author) / WU LEI (author) / LI JIONGFENG (author) / GUO QINGRONG (author) / ZHOU JUN (author) / ZHANG ZHIHAO (author) / WANG XINYUAN (author) / PAN WEIYONG (author)

    Publication date :

    2024-10-29


    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 / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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