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    • 3. 发明申请
    • Repeatable Fuse for Preventing Over-Current
    • 用于防止过电流的可重复保险丝
    • US20140253280A1
    • 2014-09-11
    • US14352748
    • 2012-10-30
    • MS Techvision Co., Ltd.
    • Duk Hee KimHa Young Park
    • H01H37/46
    • H01H37/46H01H37/323H01H85/36H01H2061/0115
    • Provided is a reusable fuse having an over-current prevention function. When an over-current that is greater than a reference level is supplied to the reusable fuse and temperature of a positive temperature coefficient thermistor is higher than a specific critical temperature, then an electric resistance of the positive temperature coefficient thermistor increases, a main spring is extended, and thus the spindle is moved toward a side of a housing due to a tensile strength of the main spring and is electrically disconnected from a first lead terminal, thereby continuously blocking flow of current between a second lead terminal and the first lead terminal. When the over-current subsides, then the positive temperature coefficient thermistor is cooled, the tensile strength of the main spring decreases, and thus the spindle is moved toward another side of the housing to be electrically connected to the first lead terminal, thereby allowing the reusable fuse to return to a normal operation state.
    • 提供具有过电流防止功能的可重复使用的熔断器。 当大于参考电平的过电流被提供给可重复使用的熔断器时,正温度系数热敏电阻的温度高于特定临界温度,则正温度系数热敏电阻的电阻增加,主弹簧 延伸,因此主轴由于主弹簧的拉伸强度而向壳体的一侧移动,并且与第一引线端子电断开,从而连续阻止第二引线端子与第一引线端子之间的电流流动。 当过电流消失时,正温度系数热敏电阻被冷却,主弹簧的拉伸强度降低,因此主轴向壳体的另一侧移动以电连接到第一引线端子,从而允许 可重复使用的保险丝恢复正常运行状态。