Vibration generator and stacked-structure generator

Patent metadata

Field	Value
Publication number	US-9825558-B2
Application number	US-201314762135-A
Country	US
Kind code	B2
Filing date	Feb 5, 2013
Priority date	Jan 21, 2013
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

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.

First claim

The invention claimed is:

1. A vibration generator, comprising:
a first arched friction unit comprising a concave inner surface and a convex outer surface;
a second arched friction unit comprising a concave inner surface and a convex outer surface;
a first electrode configured as a supporting layer and provided on the convex outer surface of the first arched friction unit; and
a second electrode configured as a supporting layer and provided on the convex outer surface of the second arched friction unit, wherein
the concave inner surface of the first arched friction unit and the concave inner surface of the second arched friction unit face each other as friction surfaces.

2. The vibration generator according to claim 1 , wherein
the first electrode is coupled to the convex outer surface of the first arched friction unit by a first insulating bonding layer, and
the second electrode is coupled to the convex outer surface of the second arched friction unit by a second insulating bonding layer.

3. The vibration generator according to claim 2 , wherein
each of the first electrode and the second electrode is a metal plate electrode, and
each of the first insulating bonding layer and second insulating bonding layer is an adhesive.

4. The vibration generator according to claim 1 , wherein
the inner friction surface of the first arched friction unit comprises micro/nanoscale pattern structures or is a smooth surface, and
the inner friction surface of the second arched friction unit comprises micro/nanoscale pattern structures or is a smooth surface.

5. The vibration generator according to claim 4 , wherein
the first arched friction unit comprises polydimethylsiloxane,
the second arched friction unit comprises polyethylene glycol terephthalate, and
the first electrode and the second electrode comprise aluminum foil.

6. A vibration generator, comprising:
a first arched friction unit comprising a convex inner surface and a concave outer surface;
a second arched friction unit comprising a convex inner surface and a concave outer surface;
a first electrode configured as a supporting layer and provided on the concave outer surface of the first arched friction unit; and
a second electrode configured as a supporting layer and provided on the concave outer surface of the second arched friction unit, wherein
the convex inner surface of the first arched friction unit and the convex inner surface of the second arched friction unit face each other as friction surfaces.

7. The generator according to claim 6 , wherein
the first electrode is coupled to the concave outer surface of the first friction unit by a first insulating bonding layer, and
the second electrode is coupled to the concave outer surface of the first friction unit by a second insulating bonding layer.

8. The generator according to claim 7 , wherein
each of the first electrode and the second electrode is a metal plate electrode, and
each of the first insulating bonding layer and the second insulating bonding layer is an adhesive.

9. The vibration generator according to claim 6 , wherein
the convex inner friction surface of the first arched friction unit comprises micro/nanoscale pattern structures or is a smooth surface; and
the convex inner friction surface of the second arched friction unit comprises micro/nanoscale pattern structures or is a smooth surface.

10. The vibration generator according to claim 9 , wherein
the first arched friction unit comprises polydimethylsiloxane,
the second arched friction unit comprises polyethylene glycol terephthalate, and
the first and second electrodes are aluminum plate electrodes.

11. A stacked-structure generator, comprising:
a plurality of the vibration generators according to claim 1 ; and
one or more sets of a first geometrically complementarily-shaped friction unit and a second geometrically complementarily-shaped friction unit, each of the first and second geometrically complementarily-shaped friction units matching with one of the first and second electrodes, wherein
the plurality of vibration generators are coupled to each other by the one or more sets of the first geometrically complementarily-shaped friction unit and the second geometrically complementarily-shaped friction unit,
the first geometrically complementarily-shaped friction unit being coupled to the matching one of the first and second electrodes and the second geometrically complementarily-shaped friction unit being coupled to the matching one of the first and second electrodes, the first and second geometrically complementarily-shaped friction units connecting two vibration generators of the plurality of vibration generators and compose a vibration generator that is complementary to one of the plurality of vibration generators.

12. The stacked-structure generator according to claim 11 , wherein
the first complementarily-shaped friction unit is coupled to the matching one of the first and second electrodes by a third insulating bonding layer, and
the second complementarily-shaped friction unit is coupled to the matching one of the first and second electrodes by a fourth insulating bonding layer.

13. The stacked-structure generator according to claim 11 , wherein
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 , wherein the plurality of vibration generators are fastened together by an attaching strip or an attaching line.

Assignees

• Univ Beijing

Inventors

• Zhang Haixia
• Tang Wei
• Meng Bo

Classifications

• H02N1/04 Primary

  Friction generators · CPC title