Life safety device with automatic battery discharge at the...

G - Physics – 08 – B

Patent

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Details

G08B 21/00 (2006.01) G08B 3/10 (2006.01)

Patent

CA 2741014

When a rechargeable battery of a life safety device reaches its end of life, the life safety device provides an audible signal indicating that replacement is required. When the device is disconnected from line power, the rechargeable battery still con-tains a significant amount of energy. The device automatically begins controlled discharge the battery until the stored energy has been reduced to a safe level for disposal of the life safety device and its battery.

Selon la présente invention, lorsque la batterie rechargeable d'un dispositif de sécurité atteint la fin de sa durée de vie, ledit dispositif de sécurité émet un signal sonore indiquant qu'il est nécessaire de la remplacer. Lorsque ce dispositif est déconnecté de l'alimentation électrique, la batterie rechargeable contient encore une quantité d'énergie significative. Le dispositif commence automatiquement à décharger la batterie, de manière contrôlée, jusqu'à ce que l'énergie stockée soit réduite à un niveau présentant une sécurité suffisante pour la mise au rebut du dispositif de sécurité et de sa batterie.

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