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US 2010/0244629 A1Published application
Piezoelectric Generator
AssigneeCeratec Corporation
InventorsSusumu Nagashima, Ryotaro Matsumura
Life of this patent
Estimating the term…
Abstract
The piezoelectric generator is characterized by providing a spacer member in the vicinity of a fixed end of an elastic plate mounted on a base plate by means of affixing both ends in such a way as to prevent the elastic plate not to be deformed unnecessarily when a load is applied to the elastic plate from above, so that a piezoelectric ceramic plate glued onto the elastic plate generates electric power by the elastic plate's deformation.
Claims6
A piezoelectric generator for causing strains in a piezoelectric element by external forces or vibrations to generate electrical energy comprising:
- a flat base plate;
- an elastic plate, which is bent in an arc shape and is attached to said base plate at both ends thereof so that a space is created to allow the elastic plate to deform between it and the particular base plate;
- and
- a spacer member having a fulcrum, which is located between one of the fixed ends of the particular elastic plate and the peak point of said arc-like curve for supporting said elastic plate in the vicinity of said one end of thereof, the spacer member being provided to form a space between its side opposite to the base plate and said elastic plate for allowing the elastic plate to deform;
- wherein
- said piezoelectric element is glued to at least one of the front and back surfaces of said elastic plate.
3 more elements
Dependencies are inferred from the claim text.