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    • 3. 发明专利
    • Battery with safety valve
    • 带安全阀的电池
    • JP2013062120A
    • 2013-04-04
    • JP2011199521
    • 2011-09-13
    • Toyota Motor Corpトヨタ自動車株式会社
    • KUBO MASAHIKOOKUMURA MOTOYOSHIOTA YOSHIFUMIOKIMURA YUKIKO
    • H01M2/12
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a battery including a safety valve having a stabilized valve opening pressure and ensuring high sealing performance.SOLUTION: The battery includes a safety valve which discharges a portion of gas in the battery when the internal pressure of the battery increases. The safety valve further includes a valve member having a discharge hole interconnecting the inside and outside of the battery, and an elastic member disposed at a position of the valve member on the outside of the battery so as to be pressed toward the valve member and to cover the discharge hole. At a sealing part where the valve member and the elastic member come into contact with each other, an annular inner sealing part surrounding the discharge hole, and an annular outer sealing part surrounding the inner sealing part are formed. The contact surface pressure at the inner sealing part is higher than that at the outer sealing part, and the contact sealing length at the outer sealing part is longer than that at the inner sealing part.
    • 要解决的问题:提供一种包括具有稳定的开阀压力并确保高密封性能的安全阀的电池。 解决方案:当电池的内部压力升高时,电池包括一个安全阀,该安全阀对电池中的一部分气体进行放电。 安全阀还包括阀构件,该阀构件具有与电池的内部和外部相互连接的排出孔,以及弹性构件,其设置在电池外侧的阀构件的位置处,以朝向阀构件按压,并且 覆盖排放孔。 在阀构件和弹性构件彼此接触的密封部分处,形成围绕排出孔的环形内密封部和围绕内密封部的环形外密封部。 内密封部的接​​触面压力高于外密封部的接​​触面压力,外密封部的接​​触密封长度比内密封部的接​​触面密度长。 版权所有(C)2013,JPO&INPIT