VIBRATION GENERATOR AND STACKED-STRUCTURE GENERATOR

• US 20150318800A1
• Filed: 02/05/2013
• Published: 11/05/2015
• Est. Priority Date: 01/21/2013
• Status: Active Grant

• Current Assignee: Peking University
• Original Assignee: Peking University
• Inventors: TANG, Wei, ZHANG, Haixia, MENG, Bo
• Granted Patent: US 9,825,558 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02N 1/04 Friction generators

Abstract

The disclosure discloses a vibration generator and a stacked-structure generator. The vibration generator includes an arched friction unit 1 and an arched friction unit 2. An concave inner surface of the arched friction unit 1 and an concave inner surface of the arched friction unit 2 are located opposite to each other as friction surfaces; and, the arched friction units 1 and 2 are provided with electrodes at convex outer surfaces thereof, which are concurrently served as supporting layers. The stacked-structure generator includes a plurality of the vibration generators, and several sets of a first geometrically complementary-shaped friction unit, which matches the electrode of the vibration generator that is concurrently served as the supporting layer, and a second geometrically complementary-shaped friction unit. The first geometrically complementary-shaped friction unit and the electrode concurrently served as the supporting layer that is coupled thereto and the second geometrically complementary-shaped friction unit and the electrode concurrently served as the supporting layer that is coupled thereto are attached to form a vibration generator that is complementary to the vibration generator. The present disclosure greatly increases output voltage of the generator and effectively increases collection and usage of environment energy.

Claims

1. A vibration generator, characterized by comprising an arched friction unit and an arched friction unit, wherein an concave inner surface of the arched friction unit and an concave inner surface of the arched friction unit are located to face each other as friction surfaces;

and, an electrode doubled as a supporting layer is provided on a convex outer surface of the arched friction unit, and an electrode doubled as a supporting layer is provided on a convex outer surface of the arched friction unit.

2. The vibration generator according to claim 1, characterized in that,

the arched friction unit is coupled to the electrode doubled as the supporting layer on the outer surface thereof by an insulating bonding layer;

and

the arched friction unit is coupled to the electrode doubled as the supporting layer on the outer surface thereof by an insulating bonding layer.

3. The vibration generator according to claim 2, characterized in that,

the electrode doubled as the supporting layer is a metal plate electrode and the insulating bonding layer is made by an adhesive.

4. The vibration generator according to claim 1, characterized in that,

the inner friction surface of the arched friction unit comprises mircro/nanoscale pattern structures or is a smooth surface;

and

the inner friction surface of the arched friction unit comprises mircro/nanoscale pattern structures or is a smooth surface.

5. The vibration generator according to claim 4, characterized in that,

the arched friction unit is made by polydimethylsiloxane, the arched friction unit is made by polyethylene glycol terephthalate, and the electrode doubled as the supporting layer is an aluminum foil.

11. A stacked-structure generator, characterized by comprising a plurality of the vibration generators according to claim 1, and several sets of first geometrically complementarily-shaped friction units and second geometrically complementarily-shaped friction units, which match with the electrodes doubled as the supporting layers;

and

wherein the plurality of vibration generators are coupled to each other through a set of the first geometrically complementarily-shaped friction units and the second geometrically complementarily-shaped friction units;

wherein the first geometrically complementarily-shaped friction unit and the electrode doubled as the supporting layer that is coupled thereto, and the second geometrically complementarily-shaped friction unit and the electrode doubled as the supporting layer that is coupled thereto, which connect two vibration generators, compose a vibration generator that is complementary to the vibration generators.

12. The stacked-structure generator according to claim 11, characterized in that,

the first complementarily-shaped friction unit is coupled to the electrode doubled as the supporting layer by an insulating bonding layer, and the second complementarily-shaped friction unit is coupled to the electrode doubled as the supporting layer by an insulating bonding layer.

13. The stacked-structure generator according to claim 11, characterized in that,

a surface of the first complementarily-shaped friction unit facing the second complementary-shaped friction unit comprises micro/nanoscale pattern structures or is a smooth surface;

and

a surface of the second complementarily-shaped friction unit facing the first complementarily-shaped friction unit comprises micro/nanoscale pattern structures or is a smooth surface.

14. The stacked-structure generator according to claim 11, characterized in that,

the plurality of vibration generators are fastened together by an attaching strip or an attaching line.

6. A vibration generator, characterized by comprising an arched friction unit and an arched friction unit, wherein a convex outer surface of the arched friction unit and a convex outer surface of the arched friction unit are located to face each other as friction surfaces;

and, electrode doubled as a supporting layer is provided on a concave outer surface of the arched friction unit, and an electrode doubled as a supporting layer is provided on a concave outer surface of the arched friction unit.

7. The generator according to claim 6, characterized in that,

the arched friction unit is coupled to the electrode doubled as the supporting layer on the inner surface thereof by an insulating bonding layer;

and

the arched friction unit is coupled to the electrode doubled as the supporting layer on the inner surface thereof by an insulating bonding layer.

8. The generator according to claim 7, characterized in that,

the electrode doubled as the supporting layer is a metal plate electrode and the insulating bonding layer is made by an adhesive.

9. The vibration generator according to claim 6, characterized in that,

the outer friction surface of the arched friction unit comprises mircro/nanoscale pattern structures or is a smooth surface;

and

the outer friction surface of the arched friction unit comprises mircro/nanoscale pattern structures or is a smooth surface.

10. The vibration generator according to claim 9, characterized in that,

the arched friction unit is made by polydimethylsiloxane, the arched friction unit is made by polyethylene glycol terephthalate, and the electrodes doubled as the supporting layers are aluminum plate electrodes.