PIEZOELECTRIC GENERATOR
First Claim
1. A piezoelectric generator for generating electric energy, comprising:
- a flexible material with a first elasticity coefficient; and
a piezoelectric element set with a second elasticity coefficient, the piezoelectric element set positioned in the flexible material and formed by a plurality of piezoelectric elements connected in series, each piezoelectric element comprising a piezoelectric material and a metal sheet;
wherein, the second elasticity coefficient is larger than the first elasticity coefficient.
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Abstract
A piezoelectric generator utilizes to accept a force for generating electric energy and comprises a flexible material and a piezoelectric element set. The piezoelectric element is positioned in the flexible material. The piezoelectric element set is formed by the plurality of piezoelectric elements connected in series, each piezoelectric element comprises a piezoelectric material and a metal sheet. The piezoelectric material has piezoelectricity. When the piezoelectric material suffers a stress, the piezoelectric material will generate a voltage by the deformation. The flexible material has a first elasticity coefficient. The piezoelectric element set has a second elasticity coefficient. The second elasticity coefficient is larger than the first elasticity coefficient. Therefore, the flexible material protects and fixes the piezoelectric element set, the deformation of the piezoelectric element set will not be limited by the flexible material and the voltage generated by the piezoelectric element set will further not be affected thereby.
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Citations
11 Claims
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1. A piezoelectric generator for generating electric energy, comprising:
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a flexible material with a first elasticity coefficient; and a piezoelectric element set with a second elasticity coefficient, the piezoelectric element set positioned in the flexible material and formed by a plurality of piezoelectric elements connected in series, each piezoelectric element comprising a piezoelectric material and a metal sheet; wherein, the second elasticity coefficient is larger than the first elasticity coefficient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An automatically flashing device, comprising:
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a shoe with a sole; and a piezoelectric generator embedded in the sole, comprising; a flexible material with a first elasticity coefficient; and a piezoelectric element set with a second elasticity coefficient, the piezoelectric element set positioned in the flexible material and formed by a plurality of piezoelectric elements connected in series, each piezoelectric element comprising a piezoelectric material and a metal sheet; wherein, the second elasticity coefficient is larger than the first elasticity coefficient. - View Dependent Claims (10, 11)
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Specification