RECIPROCATING MAGNET ELECTRICAL GENERATOR

• US 20160134173A1
• Filed: 11/07/2014
• Published: 05/12/2016
• Est. Priority Date: 11/07/2014
• Status: Active Grant

• Current Assignee: Wepower Technologies, LLC
• Original Assignee: David Deak, Sr.
• Inventors: Deak, David Sr.
• Granted Patent: US 9,673,683 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02K 35/02 with moving magnets and stationary coil systems
• CPC Class Codes: H02K 7/1876 with reciprocating, linearly oscillating or vibrating parts

Abstract

A short burst electrical energy harvesting generator in one embodiment including a reciprocating magnet, under the magnetic influence of dual repelling magnets, whose travel path oscillates within a centered through hole coil bobbin thereby producing an induced voltage at the coil terminals. This induced voltage can be utilized to power battery-less and wireless remote communications control function such as ISMB and wireless transmitters and battery-less electronic device applications.

Claims

1. An energy harvesting device, comprising:

a reciprocating magnet generator including a magnet suspended to move cyclically along a path, and a coil of wire disposed around a portion of said magnet path providing an electrical output in response to said magnet cyclical motion along said path;

a trigger disposed in a quiescent state to be separate from said reciprocating magnet, and to receive a physical force and impart an abrupt repulsion force to said magnet, wherein said abrupt repulsion force initiates said cyclical magnet movement along said path; and

a trigger retainer disposed to retain said trigger in a quiescent state first position from which said trigger is moved to impart said abrupt repulsion force to said magnet.

2. The energy harvesting device of claim 1, wherein

said reciprocating magnet generator magnet includes a north pole and a south pole disposed along an axis substantially parallel to said path, and

said trigger comprises a magnet having a north pole and a south pole, and wherein

one of said trigger magnet north pole and trigger magnet south pole is disposed to face an opposite polarity of one of said reciprocating magnet generator magnet north pole and said reciprocating magnet generator magnet south pole.

3. The energy harvesting device of claim 1, wherein one of said trigger and said housing includes a magnet disposed to retain said trigger in said first position.

4. The energy harvesting device of claim 1, further including a housing retaining said reciprocating magnet, said trigger and said trigger retainer, and being in fixed relationship to said coil.

5. The energy harvesting device of claim 4, wherein said trigger includes a launching magnet providing said abrupt repulsion force and a push-rod disposed to transfer said physical force to said trigger magnet, wherein said push-rod extends at least partially through said housing, and is separable from said launching magnet.

6. The energy harvesting device of claim 5, wherein said push-rod includes a magnet oriented to provide magnetic attraction to said launching magnet.

7. The energy harvesting device of claim 5, wherein said launching member comprises a launching magnet.

8. A generator, comprising:

a housing including an elongated aperture therein extending along an axis;

a coil of wire wound about and along said axis over a length and formed to include at least a portion of said elongated aperture, said aperture having a first end, a second end and a midpoint of said length;

a first movable magnet disposed to be movable along a path including at least a portion of said coil aperture length; and

a suspension member disposed relatively proximal said aperture second end and to resiliently suspend without contact therewith said first movable magnet in a quiescent position offset from said midpoint toward one of said aperture first end and said aperture second end.

9. The generator of claim 8, wherein said suspension member comprises a magnetic suspension imparting a repulsion force on said first movable magnet.

10. The generator of claim 9, wherein said magnetic suspension comprises a first suspension magnet substantially at said aperture second end, and further comprising a second suspension magnet substantially at said aperture first end.

11. The generator of claim 8, further including a trigger disposed to impart a force to said first movable magnet toward said aperture midpoint.

12. The generator of claim 11, wherein said trigger comprises a magnetic field trigger providing a magnetic transient force to said first movable magnet.

13. The generator of claim 8, further comprising a second movable magnet disposed within said aperture between said first movable magnet and said suspension member, wherein said first movable magnet and said second movable magnet have facing poles of the same polarity and are movable relative to each other.

14. The generator of claim 13, further comprising a barrier disposed within said aperture and in fixed position along said aperture between said first movable magnet and said second movable magnet.

15. The generator of claim 13, wherein said coil comprises a first coil, said generator further comprising a second coil disposed about said aperture in closer proximity to said second movable magnet than said first movable magnet.

16. The generator of claim 8, wherein said coil provides a non-sinusoidal output.

21. The generator of claim 14,

wherein said barrier comprises a magnetic material barrier disposed within said aperture to which said first movable magnet and said second movable magnet can be magnetically attracted, and

wherein said magnetic metal barrier is selected to allow one of said first and said second magnets seated thereon, to be unseated by the approach the other of said first and said second magnet.

22. The generator of claim 8, wherein

said resilient suspension is disposed to permit periodic first movable magnet motion to either side of said quiescent position, and

wherein said coil of wire provides a periodic AC signal therefrom.

17. A generator, comprising:

a coil winding disposed around an axis and formed to include at least a portion of an elongated path having an axial length, a first end and a second end;

a movable magnet retained to move along at least a portion of said path, and having at least one each of a N pole and a S pole each disposed substantially along said axis and being movably along said path around which at least a portion of said coil is wound, said movable magnet being resiliently retained at a quiescent position there along; and

a trigger retained at a rest position separated from and facing said movable magnet and movable from said rest position by application of a force in excess of a threshold amount and disposed to impart a force on said movable magnet to move along said path toward said aperture midpoint when said trigger is moved from said rest position.

18. The generator of claim 17 further including a suspension magnet oriented and disposed to impart a suspension force on said movable magnet to urge said movable magnet to said quiescent position.

19. The generator of claim 17, further including a housing including an aperture and said coil disposed about said aperture, and wherein

said trigger further includes a magnet having an attraction force urging contact with a portion of said housing, and wherein

a force of separation of said trigger magnet and said housing portion being said in excess of said threshold amount.

20. The generator of claim 17, further including a magnetic suspension disposed to provide a reciprocating movable magnet motion along said path and having varying proximity of said movable magnet relative to said coil.