Roll-over shunt sensor

Details Roll-over shunt sensor Roll-over shunt sensor

H - Electricity

01

H

H01H 35/02 (2006.01) H01H 9/00 (2006.01) H01H 35/14 (2006.01)

Patent

CA 2331011

A ferromagnetic shunt (34) is pivotally mounted to a housing to form a pendulum that swings between a reed switch (30) and a magnet (32). As long as the shunt remains between the reed switch BV and the magnet the reed switch remains open. The shunt is held or biased between the magnet and the reed switch by the force of the magnetic attraction between the shunt and the magnet. The mass of the shunt acts as both a tilt sensor (20) and an accelerometer. The reed switch, magnet and shunt are mounted in a housing (28) that positions the reed switch and magnet and controls the maximum range of motion of the shunt. The magnet is located between two pendulum arms (40) which allow the shunt to swing between the reed switch and the magnet.

Ce circuit en parallèle ferromagnétique (34) est monté pivotant dans un logement de manière à constituer un pendule oscillant entre un commutateur à lames (30) et un aimant (32). Tant que le circuit en parallèle demeure entre l'aimant et le commutateur à lames, ce dernier reste ouvert. Le circuit en parallèle est stabilisé ou sollicité entre l'aimant et le commutateur à lames par la force de l'attraction magnétique entre le circuit et l'aimant. La masse du circuit en parallèle agit à la fois comme capteur de dévers (20) et accéléromètre. Le commutateur à lames, l'aimant et le circuit en parallèle sont montés dans un logement (28) qui positionne le commutateur à lames et l'aimant et agit sur la portée maximale de déplacement du circuit en parallèle. L'aimant est placé entre deux bras de pendule (40), ce qui permet au circuit en parallèle d'osciller entre le commutateur à lames et l'aimant.

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