Fuse providing circuit isolation and visual interruption...

H - Electricity – 01 – H

Patent

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Details

H01H 85/30 (2006.01) H01H 85/36 (2006.01)

Patent

CA 2579932

A fuse including a fuse housing having first and second electrical terminals, a movable partition made from an electrically conductive material movably disposed within the fuse housing, a fusible structure connected between the first electrical terminal and the movable partition, a conductor connected between the movable partition and the second electrical terminal, a biasing element acting on the movable partition to maintain the fusible structure in tension and for moving the movable partition upon melting of the fusible structure and an indicator connected between the movable partition and the second electrical terminal. The conductor, the movable partition and the fusible structure define an electrical path between the first and second electrical terminals and the indicator protrudes out of the second electrical terminal of the fuse housing upon melting of the fusible structure for providing visual indication of an interrupted condition of the fuse when subjected to a threshold current flowing therethrough.

Fusible comprenant un boîtier de fusible comportant une première et une seconde bornes, une partition mobile fabriquée d'un matériau électriquement conducteur placé de façon amovible dans le boîtier du fusible, une structure fusible branchée entre la première borne électrique et la partition amovible, un conducteur branché entre la partition amovible et la seconde borne électrique, un élément polarisateur agissant sur la partition amovible pour maintenir la structure fusible sous tension et pour déplacer la partition mobile lors de la fusion de la structure fusible, ainsi qu'un indicateur branché entre la partition mobile et la seconde borne électrique. Le conducteur, la partition mobile et la structure fusible crééent un passage électrique entre la première et la seconde bornes; l'indicateur projette un bout hors de la seconde borne électrique et du boîtier du fusible lorsque la structure fusible fond, afin de donner une indication visuelle de l'état de coupure du fusible lorsqu'il est traversé par un courant de seuil.

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