Hybrid rotary energy harvester
US11228259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2017 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Apr 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/026
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an energy harvester, including: a base; an electromagnetic coil fixed in the base; a disk-shaped stator magnet fixed at the center of the base; a friction plate fixing ring fixed on the base; at least one friction plate unit fixed on an inner side surface of the friction plate fixing ring; a disk-shaped rotor magnet whose bottom is in contact with the electromagnetic coil, wherein the disk-shaped rotor magnet is attracted and held to the disk-shaped stator magnet, and an outer surface of the disk-shaped rotor magnet is tangent to an outer surface of the disk-shaped stator magnet; and an annular friction plate fixed on the disk-shaped rotor magnet, wherein the annular friction plate and a friction plate are made of materials with different polarities. The foregoing energy harvester has a simple structure and high electrical energy output efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.