Power generating element
US10468997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2016 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Jun 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/87
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A tabular structure having flexibility extends from a root end portion to a distal end portion along a reference axis. The root end portion is fixed to a pedestal. Three sectioned parts are provided in the tabular structure. Weights are joined to the lower surfaces of the respective three sectioned parts. The three sectioned parts respectively have different thicknesses. As a result, spring constants are different. When vibration energy from the outside is applied to the pedestal, the weights vibrate and a bend occurs in the tabular structure. If a charge generating element such as a piezoelectric element is stuck to the tabular structure, an electric charge is generated by bending stress. A frequency band capable of generating electric power is expanded by providing a plurality of weights in the tabular structure in which the spring constants are different in each of the sectioned parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.