Multi-directional energy harvester

Patent metadata

Field	Value
Publication number	US-12088219-B2
Application number	US-202318151557-A
Country	US
Kind code	B2
Filing date	Jan 9, 2023
Priority date	Aug 2, 2022
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

An embodiment multi-directional vibration energy harvester includes a fixing part in which fixed discs of a conductive material are stacked spaced apart from each other and electrically connected to each other and a vibration unit in which vibration discs are arranged to be spaced apart from each other with the vibration discs being alternately stacked with the fixed discs, wherein the fixed discs and the vibration discs are arranged so that as an arrangement distance between a vibration disc of the vibration discs and a fixed disc of the fixed discs is changed by an external force, an electron moves between the vibration disc and the fixed disc.

First claim

What is claimed is:

1. A multi-directional vibration energy harvester comprising:
a fixing part in which fixed discs of a conductive material are stacked spaced apart from each other and electrically connected to each other; and
a vibration unit in which vibration discs are arranged to be spaced apart from each other with the vibration discs being alternately stacked with the fixed discs, wherein the fixed discs and the vibration discs are arranged so that as an arrangement distance between a vibration disc of the vibration discs and a fixed disc of the fixed discs is changed by an external force, an electron moves between the vibration disc and the fixed disc.

2. The multi-directional vibration energy harvester of claim 1 , wherein each of the vibration discs comprises a second conductive material or a flexible material.

3. The multi-directional vibration energy harvester of claim 1 , wherein the vibration unit further comprises a cylindrical vibration column, and wherein the vibration discs are each coupled to the vibration column and stacked.

4. The multi-directional vibration energy harvester of claim 3 , further comprising:
a first screw thread on an outer side of the vibration column;
a coupling hole in a center of each of the vibration discs; and
a second screw thread on an inner side of the coupling hole, wherein the second screw thread is coupled with the first screw thread.

5. The multi-directional vibration energy harvester of claim 4 , wherein:
each of the vibration discs comprises a stacked part extending in a vertical direction from an inner circumferential surface; and
the vibration discs are spaced apart from each other and stacked by the stacked part.

6. The multi-directional vibration energy harvester of claim 5 , wherein the second screw thread is on an inner surface of the stacking part, and wherein the vibration discs are coupled to the vibration column by the second screw thread.

7. The multi-directional vibration energy harvester of claim 3 , wherein:
the vibration unit further comprises an elastic member having a first end portion coupled to a lower end of the vibration column; and
a bending deformation occurs in response to the external force applied to a second end portion of the elastic member opposite the first end portion.

8. The multi-directional vibration energy harvester of claim 3 , wherein:
each of the fixed discs comprises a stepped part extending in a vertical direction from an outer circumferential surface; and
the fixed discs are spaced apart from each other and stacked by the stepped part.

9. The multi-directional vibration energy harvester of claim 8 , wherein each of the fixed discs is coupled to a neighboring fixed disc arranged in an upper layer or a lower layer by a thread provided at an upper end portion or a lower end portion of the stepped part, respectively.

10. The multi-directional vibration energy harvester of claim 8 , wherein each of the fixed discs comprises a hole provided in a center thereof, and wherein the vibration column penetrates the hole.

11. A multi-directional vibration energy harvester comprising:
a fixing part comprising fixed discs, each fixed disc comprising a conductive material and a stepped part extending in a vertical direction from an outer circumferential surface, the fixed discs being electrically connected to each other by the stepped parts; and
a vibration unit comprising vibration discs arranged to be spaced apart from each other and alternately arranged with the fixed discs, wherein each of the vibration discs has a coupling hole in a center thereof and a stacked part extending in a direction perpendicular to an inner circumferential surface thereof, and wherein the vibration discs have a structure in which the stacked parts are sequentially stacked.

12. The multi-directional vibration energy harvester of claim 11 , wherein:
the vibration unit further comprises a cylindrical vibration column comprising a first screw thread on an outer side thereof;
each of the vibration discs comprises a second screw thread on an inner surface of the stacking part; and
the second screw thread on the inner surface of the stacking part is coupled to the first screw thread on the outer side of the vibration column.

13. The multi-directional vibration energy harvester of claim 12 , wherein:
the vibration unit further comprises an elastic member having a first end portion coupled to a lower end of the vibration column; and
a bending deformation occurs in response to an external force applied to a second end portion of the elastic member opposite the first end portion.

14. The multi-directional vibration energy harvester of claim 13 , wherein each of the fixed discs is coupled to a neighboring fixed disc arranged in an upper layer or a lower layer by a thread at an upper end portion or a lower end portion of the stepped part, respectively.

15. A multi-directional vibration energy harvester comprising:
a plurality of fixed discs stacked spaced apart from each other and electrically connected to each other, wherein each of the fixed discs comprises a conductive material; and
a cylindrical vibration column;
a plurality of vibration discs spaced apart from each other and coupled to the vibration column in a stacked arrangement, wherein the vibration discs are alternately stacked with the fixed discs; and
an elastic member having a first end portion coupled to a lower end of the vibration column so that a bending deformation occurs in response to an external force applied to a second end portion of the elastic member opposite the first end portion.

16. The multi-directional vibration energy harvester of claim 15 , wherein each of the vibration discs comprises a second conductive material or a flexible material.

17. The multi-directional vibration energy harvester of claim 15 , further comprising:
a first screw thread on an outer side of the vibration column;
a coupling hole in a center of each of the vibration discs; and
a second screw thread on an inner side of the coupling hole, wherein the second screw thread is coupled with the first screw thread.

18. The multi-directional vibration energy harvester of claim 17 , wherein:
each of the vibration discs comprises a stacked part extending in a vertical direction from an inner circumferential surface; and
the vibration discs are spaced apart from each other and stacked by the stacked part.

19. The multi-directional vibration energy harvester of claim 15 , wherein:
each of the fixed discs comprises a stepped part extending in a vertical direction from an outer circumferential surface; and
the fixed discs are spaced apart from each other and stacked by the stepped part.

20. The multi-directional vibration energy harvester of claim 19 , wherein each of the fixed discs comprises a hole provided in a center thereof, and wherein the vibration column penetrates the hole.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp

Inventors

• Kwon Dae-Sung
• Yoo Il-Seon
• Lee Jang-Hyeon
• Kim Dong-Gu
• Kim Hyun-Soo

Classifications

• F03G7/08

  recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine · CPC title

• H02N1/06

  Influence generators · CPC title

• H02N1/04 Primary

  Friction generators · CPC title

• H02N11/002 Primary

  Generators · CPC title

• H02N2/186 Primary

  Vibration harvesters · CPC title