Battery-operated thermal imaging device with safety battery...

H - Electricity – 04 – N

Patent

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Details

H04N 5/33 (2006.01) G02B 23/12 (2006.01) H01M 2/10 (2006.01) H01M 2/12 (2006.01) H04N 5/225 (2006.01)

Patent

CA 2207412

A thermal imaging device (10) includes a housing (130) defining a battery compartment, and carrying a door portion (166) closable over this battery compartment to provide environmental protection. The battery compartment door (166) includes a spring-loaded latching device (170) which will maintain the door (166) sealingly closed under normal use conditions of the device (10). However, in the event that a battery (124) received in the compartment should vent gasses sufficient to pressurized the compartment to a selected level, the latching device (170) will yield to allow a slight opening of the door (166) and a controlled venting of these gasses to ambient. Controlled venting of the battery gasses additionally occurs at a location of the device (10) remote from the user, and the battery compartment door (166) is itself interposed between the user and the venting battery (124).

Un dispositif à imagerie thermique (10) comporte un boîtier (130) définissant un compartiment pour pile et présentant une partie trappe (166) qui se ferme sur ce compartiment pour le protéger vis-à-vis de l'environnement. La trappe (166) comporte un dispositif de verrouillage à ressort (170) qui la maintient hermétiquement fermée dans les conditions normales d'utilisation du dispositif (10). Mais dans l'éventualité où une pile (124) placée dans le compartiment déchargerait des gaz en quantité suffisante pour mettre le compartiment en surpression à un niveau sélectionné, le dispositif de verrouillage (170) céderait de façon à permettre une légère ouverture de la trappe (166) et une décharge contrôlée de ces gaz dans l'air ambiant. En outre, la décharge contrôlée des gaz de la pile se fait à un emplacement du dispositif (10) éloigné de l'utilisateur, et la trappe du compartiment pour pile (166) est interposée entre l'utilisateur et la pile qui décharge (124).

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