Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO2020109783 - GÉNÉRATEUR TRIBOÉLECTRIQUE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Claims

1. A triboelectric generator for generating electrical power using the triboelectric effect, the triboelectric generator comprising:

a first body;

a second body moveable relative to the first body;

a plurality of power generation modules disposed on the first body, the plurality of power generation modules each being electrically connected to a common output and comprising material capable of generating electrical power through the triboelectric effect when brought into contact with another surface; and

one or more actuating elements disposed on the second body,

wherein the plurality of power generation modules and the one or more actuating elements are arranged on the first and second bodies such that relative movement of the first and second bodies can cause the one or more actuating elements to come into contact with the plurality of power generation modules,

wherein the contact between one of the one or more actuating elements and one of the power generation modules causes the material of said one of the power generation modules to be brought into contact with said other surface so that electrical power is generated, and

wherein the triboelectric generator is configured such that the plurality of power generation modules supply electrical power to the common output at different times during the relative movement of the first and second bodies.

2. The triboelectric generator of claim l, wherein the one or more actuating elements are arranged so as to come into contact with the power generation modules at different times during the relative movement of the first and second bodies.

3. The triboelectric generator of claim 2, wherein the relative movement comprises relative linear movement of the first and second bodies.

4. The triboelectric generator of claim 3, wherein the one or more actuating elements comprises a plurality of actuating elements, and

wherein a distance between adjacent ones of the power generation modules is different to a distance between adjacent ones of the plurality of actuating elements, such that said adjacent actuating elements contact said adjacent power generation modules at different times during the relative linear movement.

5. The triboelectric generator of claim 2, wherein the relative movement comprises rotation of the first body relative to the second body.

6. The triboelectric generator of claim 5, wherein the one or more actuating elements comprises a plurality of actuating elements, and

wherein an angular spacing between adjacent ones of the power generation modules is different to an angular spacing between adjacent ones of the plurality of actuating elements, such that said adjacent actuating elements contact said adjacent power generation modules at different times during the relative rotation of the first and second bodies.

7. The triboelectric generator of claim 5 or 6, wherein the first body at least partially surrounds the second body such that the second body rotates within the first body, and

wherein each one of the plurality of power generation modules extends inwardly towards the second body from the first body.

8. The triboelectric generator of claim 5 or 6, wherein the second body at least partially surrounds the first body such that the first body rotates within the second body, and

wherein each one of the plurality of power generation modules extends outwardly from the first body towards the second body.

9. The triboelectric generator of any one of the preceding claims, wherein the plurality of power generation modules comprise a plurality of first power generation modules and one or more of the plurality of actuating elements comprise a second power generation module, such that when one of the first power generation modules is actuated by the second power generation module to produce electrical power, the second power generation module is simultaneously actuated by said one of the first power generation modules to produce additional electrical power.

10. The triboelectric generator of claim 1, wherein the power generation modules are arranged to come into contact with said other surface at substantially the same time, the triboelectric generator further comprising:

means for delaying the power output of one power generation module relative to other ones of the power generation modules, such that the electrical power generated by said one power generation module is supplied to the common output at a different time to the electrical power generated by said other ones of the power generation modules.

it. The triboelectric generator of claim 10, wherein the means for delaying the power output comprises a delay circuit.

12. The triboelectric generator of claim n, wherein the delay circuit comprises one or more active electrical components arranged to be powered from the common output.

13. The triboelectric generator of any one of the preceding claims, further comprising:

one or more rectifiers configured to rectify an electric current generated by each of the plurality of power generation modules and supply rectified electric current to the common output.

14. The triboelectric generator of any one of the preceding claims, wherein each power generation module comprises:

a power generation component comprising the material capable of generating electrical power through the triboelectric effect; and

a first contact surface comprising said other surface arranged to be brought into contact with the material, wherein the first contact surface is spaced apart from the power generation component by a distance such that when the power generation component is deflected in a direction towards or away from the first contact surface and subsequently released, the power generation component oscillates and repeatedly makes contact with the first contact surface, thereby generating electrical power.

15. The triboelectric generator of claim 14, wherein each power generation module comprises:

first and second electrodes,

wherein the power generation component and the first contact surface are disposed between the first and second electrodes such that the oscillation of the power generation component induces a potential difference between the first and second electrodes, and

wherein the first and second electrodes are connected to the common output.

16. The triboelectric generator of claim 15, comprising:

a plurality of rectifiers each connected to a respective one of the plurality of power generation modules, each rectifier comprising a first input, a second input, a positive output and a negative output,

wherein the common output comprises a positive terminal and a negative terminal, and

wherein the first electrode of one of the power generation modules is electrically connected to the first input of a respective one of the plurality of rectifiers, the second electrode of said one of the power generation modules is electrically connected to the second input of said one of the plurality of rectifiers, the positive output of said one of the plurality of rectifiers is connected to the positive terminal, and the negative output of said one of the plurality of rectifiers is connected to the negative terminal.

17. The triboelectric generator of claim 15 or 16, wherein the first contact surface consists of the first electrode.

18. The triboelectric generator of claim 16, wherein the first contact surface comprises a triboelectric layer disposed on the first electrode, such that the power generation component repeatedly makes contact with the triboelectric layer during the oscillation of the power generation component.

19. The triboelectric generator of any one of claims 15 to 18, wherein the power generation component is formed as a sheet of material capable of generating electrical power through the triboelectric effect, and the first and second electrodes are arranged to overlap at least part of the sheet of material.

20. The triboelectric generator of any one of claims 14 to 19, wherein the first contact surface comprises a different material to the power generation component.

21. The triboelectric generator of any one of claims 14 to 20, wherein each power generation module further comprises:

a second contact surface disposed on an opposite side of the power generation component to the first contact surface, such that the power generation component

alternately contacts the first and second contact surface during the oscillation of the power generation component.

22. The triboelectric generator of any one of claims 14 to 21, wherein the power generation component and the first contact surface extend away from a surface of the first body towards the one or more actuating elements, the power generation component extending further away from the first body than the first contact surface, and

wherein a separation distance between the first and second bodies is set such that during the relative movement of the first and second bodies, the one or more actuating elements contact the power generation component but not the first contact surface.

23. The triboelectric generator of any one of claims 14 to 22, wherein the first contact surface has a higher stiffness than the power generation component.

24. The triboelectric generator of any one of claims 1 to 13, wherein each power generation module comprises:

a first power generation part disposed on the first body;

a second power generation part disposed on the second body, the second power generation part comprising one of the one or more actuating elements; and

an electrical connection configured to electrically connect the first power generation part to the second power generation part,

wherein the first power generation part comprises the material capable of generating electrical power through the triboelectric effect, and the second power generation part comprises the other surface that is arranged to come into contact with the surface of said material.

25. The triboelectric generator of claim 24, comprising:

a plurality of rectifiers each connected to a respective one of the plurality of power generation modules, each rectifier comprising a first input, a second input, a positive output and a negative output,

wherein the common output comprises a positive terminal and a negative terminal, and

wherein the first power generation part of one of the power generation modules is electrically connected to the first input of a respective one of the plurality of rectifiers, the second power generation part of said one of the power generation modules is electrically connected to the second input of said one of the plurality of rectifiers, the positive output of said one of the plurality of rectifiers is connected to the positive terminal, and the negative output of said one of the plurality of rectifiers is connected to the negative terminal.

26. Apparatus comprising:

first and second parts arranged to move relative to one another during normal operation of the apparatus; and

a triboelectric generator according to any one of the preceding claims for harvesting electrical power from the relative movement of the first and second parts of the apparatus,

wherein the first body of the triboelectric generator comprises or is physically connected to the first part of the apparatus, and the second body of the triboelectric generator comprises or is physically connected to the second part of the apparatus.

27. The apparatus of claim 26, wherein the apparatus is configured to be worn on a human or animal body, such that movement of said human or animal body causes the first and second parts to move relative to one another.

28. The apparatus of claim 27, wherein the apparatus comprises an item of clothing.

29. The apparatus of any one of claims 26 to 28, wherein the first and second parts comprise layers of material arranged to slide over one another.

30. The apparatus of claim 26, wherein the apparatus comprises machinery configured to produce linear and/or rotational motion.