Consumer battery having a built-in indicator

H - Electricity – 01 – M

Patent

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Details

H01M 10/48 (2006.01) G01R 31/36 (2006.01) H01M 6/50 (2006.01) H02J 7/00 (2006.01) H02J 7/14 (2006.01) H02J 9/06 (2006.01) H01M 10/42 (2006.01)

Patent

CA 2369354

A built-in battery integrated circuit (50) in the form of a flexible circuit board (70) of a consumer battery (10) senses a voltaic cell electrode (32", 34") voltage, and when the voltage is indicative of a low state of charge, activates an indicating system (11), alerting a user to the impending battery failure. In addition, a tester actuator button (15) is placed exteriorly on the battery container (12) to manually activate the indicating system (11) to verify that the battery has not become so low of charge as to prevent the indicating system from functioning. Advantageously, the tester actuator button (15) may further enable the built-in battery integrated circuit, thus having all internal electronics unpowered until a user decides to use the battery (10). The indicating system (11) includes an analog indicator such as a bargraph and/or a pulse indicator (64) such as an LED or LCD.

L'invention concerne un circuit intégré (50) incorporé dans une pile, sous forme de carte (70) de circuit imprimé souple d'une pile (10) de consommation, et servant à capter une tension provenant d'une électrode (32'', 34'') de pile voltaïque. Lorsque la tension indique un état de charge faible, ledit circuit actionne un système indicateur (11) signalant la défaillance imminente de la pile à un utilisateur. Par ailleurs, un bouton (15) servant à actionner un testeur se trouve à l'extérieur du boîtier (12) de la pile et permet d'actionner manuellement le système indicateur (11) pour vérifier que la pile ne présente pas une charge trop faible pour faire fonctionner le système indicateur. Avantageusement, le bouton (15) actionnant le testeur peut également activer le circuit intégré incorporé dans la pile, tous les composants électroniques restant ainsi désactivés jusqu'à ce qu'un utilisateur décide d'utiliser la pile (10). Le système indicateur (11) comprend un indicateur analogique, tel qu'un bargraphe et/ou un indicateur d'impulsions, tel qu'une diode électroluminescente ou un afficheur à cristaux liquides.

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