Nanofriction power generation device with spiral vibrating balls and buoy body thereof

• US 10,673,356 B2
• Filed: 07/05/2017
• Issued: 06/02/2020
• Est. Priority Date: 06/05/2017
• Status: Active Grant

• Current Assignee: Hefei University of Technology
• Original Assignee: Hefei University of Technology
• Inventors: Zhai, Hua, Lei, Rui, Hong, Zhanyong, Wu, Yucheng, Jiang, Tao, Chen, Xiangyu, Yan, Jianwen
• Primary Examiner(s): Leung, Quyen P
• Assistant Examiner(s): Johnson, Eric
• Application Number:
  US16/340,136
• Publication Number:
  US 20190238068A1
• Time in Patent Office: 1,063 Days
• Field of Search: 310310, 290 1 R, 290 42, 290 53, 322 2 A
• CPC Class Codes: F03B 13/14 using wave energy
• CPC Class Codes: F03B 13/16 using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
• CPC Class Codes: F05B 2220/709 Piezoelectric means
• CPC Class Codes: F05B 2250/15 spiral
• CPC Class Codes: F05B 2250/231 cylindrical
• CPC Class Codes: F05B 2250/241 spherical
• CPC Class Codes: F05B 2260/42 Storage of energy
• CPC Class Codes: H02N 1/04 Friction generators
• CPC Class Codes: Y02E 10/30 Energy from the sea, e.g. using wave energy or salinity gradient

Abstract

A nanofriction power generation device with spiral vibrating balls and a buoy body thereof-includes an inner spiral barrel, an outer spiral barrel sleeved outside the inner spiral barrel, hollow balls between the two spiral barrels, an electric energy storage device contained in the inner spiral barrel, and a buoy barrel for containing the outer spiral barrel. The outer wall of the inner spiral barrel and the inner wall of the outer spiral barrel are respectively provided with first spiral tracks and second spiral tracks extending from one end to the opposite other end. The inner spiral barrel is in the outer spiral barrel, and the first spiral tracks and the second spiral tracks have a one-to-one correspondence and form spiral channels. Nanofriction electric generator films are attached to an outer surface of each hollow ball and an inner wall of each spiral channel.

Claims

1. A nanofriction power generation device with spiral vibrating balls, comprising:

an inner spiral barrel, wherein an outer wall of the inner spiral barrel is provided with a plurality of first spiral tracks extending from one end of the inner spiral barrel to an opposite other end of the inner spiral barrel;

an outer spiral barrel, wherein an inner wall of the outer spiral barrel is provided with a plurality of second spiral tracks extending from one end of the outer spiral barrel to an opposite other end of the outer spiral barrel, the inner spiral barrel is configured inside the outer spiral barrel, and the plurality of first spiral tracks and the plurality of second spiral tracks have a one-to-one correspondence and are put together to form a plurality of spiral channels;

a plurality of hollow balls, wherein the plurality of hollow balls are contained inside the plurality of spiral channels, and each spiral channel respectively retains a storage space capable of storing at least one hollow ball;

an electric energy storage device, wherein the electric energy storage device is contained inside the inner spiral barrel; and

a buoy barrel, wherein the outer spiral barrel is contained and sealed inside the buoy barrel, and the buoy barrel is configured to suspend the nanofriction power generation device with the spiral vibrating balls on a water surface;

wherein an outer surface of each hollow ball is provided with a first nanofriction electric generator film, and an outer surface of an inner wall of each spiral channel is provided with a second nanofriction electric generator film, and the electric energy storage device is electrically connected to the second nanofriction electric generator film on the inner wall of the spiral channel;

when the nanofriction power generation device with the spiral vibrating balls on the water surface is subject to a wave impact, current is generated by mutual friction between the first nanofriction electric generator film on the hollow ball and the second nanofriction electric generator film on the spiral channel, and stored in the electric energy storage device.

2. The nanofriction power generation device with the spiral vibrating balls according to claim 1, wherein one end of the buoy barrel is a closed end, the other end of the buoy barrel is an open end configured for installation of the outer spiral barrel, and the outer spiral barrel is sealed in the buoy barrel by a sealing cover at the open end.

3. The nanofriction power generation device with the spiral vibrating balls according to claim 2, further comprising two cover plates, wherein the two cover plates are installed at both ends of the outer spiral barrel, respectively.

4. The nanofriction power generation device with the spiral vibrating balls according to claim 2, wherein the sealing cover is a sealing cover with a thread.

5. The nanofriction power generation device with the spiral vibrating balls according to claim 1, wherein the hollow ball is a plastic hollow ball.

6. The nanofriction power generation device with the spiral vibrating balls according to claim 1, wherein both ends of each spiral channel are closed ends.

7. The nanofriction power generation device with the spiral vibrating balls according to claim 1, further comprising two cover plates, wherein the two cover plates are installed at both ends of the buoy barrel, respectively.

8. The nanofriction power generation device with the spiral vibrating balls according to claim 1, wherein a hub is arranged in a middle of the inner spiral barrel, and fitted up with a rotating shaft;

the outer spiral barrel is coaxial with the buoy barrel, and a gap exists between the outer spiral barrel and the buoy barrel;

the rotating shaft is fixedly connected to the buoy barrel so that the outer spiral barrel rotates relative to the buoy barrel;

an additional first nanofriction electric generator film and an additional second nanofriction electric generator film are respectively attached to an inner wall of the buoy barrel and an outer wall of the outer spiral barrel, current is generated through friction generated by relative rotation, and stored in the electric energy storage device.

9. The nanofriction power generation device with the spiral vibrating balls according to claim 1, wherein an amount of spiral channels is an even number.

10. The nanofriction power generation device with the spiral vibrating balls according to claim 1, wherein the plurality of spiral channels are uniformly and annularly arranged around the inner spiral barrel.

11. A nanofriction power generation device with spiral vibrating balls, comprising:

a buoy body, wherein the buoy body suspends the nanofriction power generation device with the spiral vibrating balls on a water surface;

a plurality of spiral channels is annularly arranged in the buoy body around a center axis centered on a center of the buoy body;

the plurality of spiral channels extend from an end surface of one end of the buoy body to an end surface of an opposite other end of the buoy body in a spiral manner;

a plurality of hollow balls, wherein the plurality of hollow balls are contained in the plurality of spiral channels, and each spiral channel retains a storage space capable of storing at least one hollow ball;

two cover plates, wherein the two cover plates are installed at the two opposite ends of the buoy body; and

an electric energy storage device, wherein the electric energy storage device is contained in a central region of the buoy body;

wherein an outer surface of each hollow ball is provided with a first nanofriction electric generator film and an outer surface of an inner wall of each spiral channel is provided with a second nanofriction electric generator film;

when the nanofriction power generation device with the spiral vibrating balls on the water surface is subject to a wave impact, current is generated by mutual friction between the first nanofriction electric generator film on the hollow ball and the second nanofriction electric generator film on the spiral channel, and stored in the electric energy storage device.

12. The nanofriction power generation device with the spiral vibrating balls according to claim 11, wherein the hollow ball is a plastic hollow ball.

13. The nanofriction power generation device with the spiral vibrating balls according to claim 11, wherein an amount of spiral channels is an even number.

14. The nanofriction power generation device with the spiral vibrating balls according to claim 11, wherein the plurality of spiral channels are uniformly and annularly arranged around the center axis.

15. The nanofriction power generation device with the spiral vibrating balls according to claim 11, wherein a sealing cover is with a thread.

16. A buoy body of a nanofriction power generation device with spiral vibrating balls, wherein a plurality of spiral channels is annularly arranged in the buoy body around a center axis centered on a center of the buoy body;

the plurality of spiral channels extend from an end surface of one end of the buoy body to an end surface of an opposite other end of the buoy body in a spiral manner;

a plurality of hollow balls are contained in each spiral channel, and each spiral channel retains a storage space capable of storing at least one hollow ball;

the two opposite ends of the buoy body are sealed by two cover plates;

wherein an outer surface of each hollow ball is provided with a first nanofriction electric generator film and an outer surface of an inner wall of each spiral channel is provided with a second nanofriction electric generator film;

when the nanofriction power generation device with the spiral vibrating balls on a water surface is subject to a wave impact, current is generated by mutual friction between the first nanofriction electric generator film on the hollow ball and the second nanofriction electric generator film on the corresponding spiral channel, and stored in the electric energy storage device of the nanofriction power generation device with spiral vibrating balls.

17. The buoy body of the nanofriction power generation device with the spiral vibrating balls according to claim 16, wherein the hollow ball is a plastic hollow ball.

18. The buoy body of the nanofriction power generation device with the spiral vibrating balls according to claim 16, an amount of spiral channels is an even number.

19. The buoy body of the nanofriction power generation device with the spiral vibrating balls according to claim 16, wherein the plurality of spiral channels are arranged uniformly and annularly around the center axis.

20. The buoy body of the nanofriction power generation device with the spiral vibrating balls according to claim 16, wherein a sealing cover is with a thread.