Piezoelectric generating apparatus
First Claim
1. A piezoelectric generating apparatus comprising a piezoelectric ceramics plate formed by two plate-shaped piezoelectric ceramics elements which are layered and joined to each other with inverse polarization, and a cushion member joined to a center of one surface of said piezoelectric ceramics plate, in which electricity is generated by beating the other surface of said piezoelectric ceramics plate.
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Abstract
A structure comprises a piezoelectric ceramics plate formed by two plate-shaped piezoelectric ceramics elements which are layered and joined to each other with inverse polarization, in which electricity is generated by beating one or both surface of the piezoelectric ceramics plate. Therefore, an excellent generating efficiency is obtained.
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Citations
4 Claims
- 1. A piezoelectric generating apparatus comprising a piezoelectric ceramics plate formed by two plate-shaped piezoelectric ceramics elements which are layered and joined to each other with inverse polarization, and a cushion member joined to a center of one surface of said piezoelectric ceramics plate, in which electricity is generated by beating the other surface of said piezoelectric ceramics plate.
- 3. A piezoelectric generating apparatus comprising a piezoelectric ceramics plate formed by two plate-shaped piezoelectric ceramics elements which are layered and joined to each other with inverse polarization, and cushion material for supporting both ends of said piezoelectric ceramics plate, respectively, in which electricity is generated by beating at least one surface of said piezoelectric ceramics plate.
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