Piezoelectric transducers

H - Electricity – 04 – R

Patent

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Details

H04R 17/00 (2006.01) H04R 7/04 (2006.01)

Patent

CA 2235754

The invention consists of a piezoelectric material (11), a substrate or spacer (12) and an electrical connector means (13) for a wire harness or other electrical connection. The substrate (12) is used to enhance the motion of the piezoelectric element (11) by spacing the piezoelectric element (11) from the diaphragm. The substrate (12) is larger in area than the piezoelectric element (11). The transducer system (10) acts to impart motion to the diaphragm. The transducer (10) comprises a piezoelectric element (11) subject to displacement by applied electric potential (13) that has a top side, an underside and an outer perimeter. The substrate (12) is joined to the underside of the piezoelectric element (11). A means (15) applies electric potential to the piezoelectric element (11).

Le dispositif selon l'invention est constitué d'un matériau piézo-électrique (11), d'un substrat ou espaceur (12) et d'un organe de connexion électrique (13) pour faisceau de câbles ou tout autre connexion électrique. On utilise le substrat (12) pour accélérer le mouvement de l'élément piézo-électrique (11) en maintenant celui-ci à une certaine distance du diaphragme. Ce substrat (12) a une surface plus importante que celle de l'élément piézo-électrique (11). Le système transducteur (10), qui imprime un mouvement au diaphragme, comporte un élément piézo-électrique susceptible de se déplacer si un potentiel électrique (13) lui est appliqué, pourvu d'un coté supérieur, d'un périmètre extérieur et d'un coté inférieur auquel vient se rattacher le substrat (12). Un équipement (15) applique un potentiel électrique à l'élément piézo-électrique (11).

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