System and method for detecting venting of a sealed storage cell

摘要

In a system and method for detecting venting of a sealed storage cell, the sealed storage cell comprises a container with a sealing cap adapted to be detached from the container and move in the presence of gas overpressure inside the container to allow venting of the storage cell. The detection system comprises a printed circuit board with a central portion designed to be situated opposite the sealing cap, a peripheral portion surrounding the central portion and connected to the central portion by a hinge adapted to flex during movement of the sealing cap, and at least one frangible portion adapted to break upon movement of the sealing cap. An electrical printed track connects the peripheral portion to the central portion through the hinge and frangible portion(s), and is designed to be broken upon breaking of the frangible portion(s) following movement of the sealing cap.

主权项

1. An assembly, comprising:
a sealed storage cell; and a venting detection system for the sealed storage cell, the sealed storage cell comprising a container including a movable member adapted to be detached from the rest of the container and to move in the presence of excessive gas pressure within the container to allow the venting of said sealed storage cell, the venting detection system comprising a printed circuit board including:
a central portion delimited by a circumference designed to be situated facing said sealing capa peripheral portion surrounding the central portion and connected to said central portion by connecting means comprising:
a hinge adapted to flex during movement of the movable member, andat least one frangible portion adapted to break upon movement of the movable member, an electrical printed track connecting said peripheral portion to the central portion through the hinge and at least one frangible portion, the electrical printed track being adapted to be broken through breaking of the frangible portion upon movement of the movable member.