Protection device used in battery pack, battery pack and vehicle
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United States of America Patent
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Jul 6, 2021
Grant Date -
Apr 23, 2020
app pub date -
Jul 5, 2017
filing date -
Dec 30, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A battery pack comprises a plurality of batteries. The protection device is disposed between two adjacent batteries and comprises: a first connecting assembly, a second connecting assembly and a conductive connecting assembly. The protection device has a normal state and an alarm state. When the protection device is in the normal state, the first connecting assembly and the second connecting assembly are spaced apart, and the overload protection circuit is open. When the protection device is in the alarm state, the first connecting assembly is electrically connected with the housing of the first battery, the second connecting assembly is electrically connected with the housing of the second battery, at least one of the first connecting assembly and the second connecting assembly moves to be electrically connected with each other, and the overload protection circuit is closed.
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