Vibration transducers

Details Vibration transducers Vibration transducers

H - Electricity

04

R

H04R 9/06 (2006.01) H04R 9/02 (2006.01) H04R 9/18 (2006.01) H04R 7/04 (2006.01)

Patent

CA 2229856

A vibration transducer (9) to vibrate a member (2) having a face, characterised by a motor coil assembly having a coil (13) rigidly fixed to a tubular member (18), the assembly being adapted to be fixed to the said face of the member, and by a magnet assembly (15) comprising opposed disc-like pole pieces, the periphery of one of which pole pieces is arranged to be disposed with and adjacent to the motor coil assembly, and the periphery of the other of which pole pieces is formed with a surround flange (90) adapted to surrounding and to be disposed adjacent to the motor coil assembly, and characterised in that the magnet assembly is adapted to be secured at its centre to the said member to be vibrated.

L'invention concerne un transducteur de vibrations (9) destiné à faire vibrer un élément (2) qui a une face, caractérisé: par un ensemble bobine d'entraînement dont la bobine (13) est fixée de manière rigide à une pièce tubulaire (18), cet ensemble étant destiné à être rattaché à ladite face de l'élément, et par un ensemble aimant (15) qui comprend des pièces opposées en forme de disque tenant lieu de pôle; la périphérie de l'une de ces pièces est destinée à être installée avec l'ensemble bobine d'entraînement, en position adjacente, tandis que la périphérie de l'autre pièce comporte une bride de pourtour (90) conçue pour entourer l'ensemble bobine d'entraînement, également en position adjacente. Enfin, le transducteur est caractérisé en ce que l'ensemble aimant est destiné à être fixé en son centre à l'élément qui doit être mis en vibration.

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