Hybrid triboelectric and electromagnetic generator
AssigneeBoard of Trustees of Michigan State University
InventorsChangyong Cao, Yaokun Pang
Life of this patent
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Abstract
A power generator or sensor apparatus is provided. Another aspect employs a hybrid triboelectric and electromagnetic generator. In still another aspect, a power generator is used for water wave energy harvesting. A further aspect provides a power generator including an outer housing with an electrical conductor on an exterior thereof, radial overlapping electrodes located within the housing with a dielectric layer between the electrodes, a plate linearly moveable within the housing, at least one magnet affixed to the plate, and at least one spring biasing the plate within the housing. Moreover, an aspect of the present power generator includes a modularized connection configuration to linearly secure together multiples of the housing.
Claims20
A power generator apparatus comprising:
- (a) an enclosed housing;
- (b) at least one stationary and annular electrode affixed to the housing;
- (c) at least one movable and annular electrode concentrically located within the stationary electrode;
- (d) a plate transversely extending within the housing and being located within a hollow central area of the movable electrode;
- (e) at least one spring biasing the plate away from ends of the housing;
- (f) at least one magnet attached to and moveable with the plate, the at least one magnet extending through at least one aperture in the plate with a North end of the at least one magnet on a first side of the plate and an opposite South end of the at least one magnet on a second side of the plate;
- and (g) the plate being linearly movable in response to movement of the housing which causes the movable electrode to move along a longitudinal direction, which are configured to generate both triboelectric and electromagnetic energy.
A power generator apparatus comprising:
- (a) a housing being elongated in a longitudinal direction between end walls thereof;
- (b) multiple, longitudinally spaced apart and annular first electrodes affixed to the housing;
- (c) multiple, longitudinally spaced apart and movable second electrodes located within a hollow space internal to the first electrodes;
- (d) multiple magnets being moveable within the hollow space, the magnets being laterally spaced apart from each other;
- (e) at least one spring biasing the magnets relative to the end walls of the housing;
- (f) a plate transversely extending within the housing and being located within the hollow space, magnets attached to and moveable with the plate;
- (g) a cylindrically shaped collar mounted to an edge of the plate, the collar and plate longitudinally moving together within the housing;
- and (h) the second electrodes and the magnets being linearly movable together along the longitudinal direction in response to movement of the housing, which are configured to generate both triboelectric and electromagnetic energy due to the movement.
A power generator apparatus comprising:
- (a) a water wave-tiltable enclosure being elongated in a longitudinal direction;
- (b) multiple, longitudinally spaced apart first electrodes affixed to the enclosure;
- (c) a collar longitudinally movable relative to the first electrodes within the enclosure, the collar including a dielectric material;
- (d) multiple, longitudinally spaced apart second electrodes mounted to the collar;
- (e) at least one spring biasing the collar relative to longitudinal ends of the enclosure;
- (f) a plate transversely extending within the collar;
- (g) the plate being movable with the collar and the second electrodes when the second electrodes longitudinally move internal to the first electrodes;
- and
- (h) the first and second electrodes being configured to generate triboelectric energy due to water wave-tilting of the enclosure.
Dependencies are inferred from the claim text.