Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1986-06-10
1987-11-10
Foss, J. Franklin
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310348, 248603, H01L 4108
Patent
active
047059826
ABSTRACT:
Device for supporting a piezoelectric resonator inside a casing. The device comprises two cross-shaped half-shells, each one comprising: four branches of which the free ends define angle pieces with a horizontal bearing surface of small dimension, which surface is slightly raised with respect to the central part of the corresponding half-shell, as well as one vertical branch holding the edge of the resonator: four identical independent securing flanges to secure the two half-shells in position, said flanges having the shape of a turned down U, each flange comprising, at the end of each branch of the U, two stop elements bearing against two superposed branches of the two half-shells, on the faces of those branches facing said horizontal bearing surfaces; and at least four pairs of springs for suspending the four securing flanges with respect to the casing. The symmetry of the device assembly with respect to three axes perpendicular one to the other, and the shape of the different elements considerably limit the influence of any external radial or axial effects on the resonator.
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Besson Raymond
Delaite Richard
Genestier Gerard
Maitre Pierre
Renard Georges
Ecole Nationale Superieure de Mecanique et Des Microtechniques
Foss J. Franklin
Olson Robert A.
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