G - Physics – 06 – C
Patent
G - Physics
06
C
G06C 19/00 (2006.01) H01H 47/22 (2006.01) H01L 41/04 (2006.01) H01L 41/113 (2006.01) H03K 17/96 (2006.01)
Patent
CA 2467666
A self-powered switching device using a prestressed flextensional electroactive member generates a signal for activation of a latching relay. The electroactive member has a piezoelectric element with a convex and a concave face that may be compressed to generate an electrical pulse. The flextensional electroactive member and associated signal generation circuitry can be hardwired directly to the latching relay of may be coupled to a transmitter for sending an RF signal to a receiver which actuates the latching relay.
L'invention concerne un dispositif de commutation à auto-alimentation qui fait appel à un élément électroactif flextensionnel précontraint et qui produit un signal pour activer un relais de verrouillage. L'élément électroactif comporte un élément piézo-électrique, comprenant une face convexe et une face concave, pouvant être comprimé pour produire une impulsion électrique. L'élément électroactif flextensionnel et le circuit d'émission de signaux associé peuvent être raccordés directement au relais de verrouillage ou couplés à un émetteur de façon à envoyer un signal RF à un récepteur qui actionne le relais de verrouillage.
Boyd Clark Davis
Face Bradbury R.
Blake Cassels & Graydon Llp
Boyd Clark Davis
Face Bradbury R.
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