Electrostatic energy-harvesting device having 3-dimensional cone shape

Patent metadata

Field	Value
Publication number	US-9929678-B2
Application number	US-201514592266-A
Country	US
Kind code	B2
Filing date	Jan 8, 2015
Priority date	Jan 9, 2014
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

An electrostatic energy-harvesting device is provided. The electrostatic energy-harvesting device with a 3-dimensional cone shape includes a first structure including a first substrate having a cone shape with an opened lower surface and a hollow inside, and a first rubbing electrified body disposed on an outer surface of the first substrate; a second structure including a second substrate having the same shape as the first substrate and a second rubbing electrified body which includes a material having opposite electrification characteristics to the first rubbing electrified body and disposed on an inner surface of the second substrate; and leader lines connected to each of the first rubbing electrified body and the second rubbing electrified body.

First claim

What is claimed is:

1. An electrostatic energy-harvesting device with a 3-dimensional cone shape, comprising:
a first structure comprising
a first substrate, and
a first rubbing electrified body disposed on a first surface of the first substrate, the first substrate being in shape of a conical shell with a second surface and a hollow inside, the first surface being on an outside of the conical shell of the first substrate and the second surface being on an inside of the conical shell of the first substrate;
a second structure comprising
a second substrate having the same shape as the first substrate, and having a third surface and a fourth surface, and
a second rubbing electrified body which includes a material having opposite electrification characteristics to the first rubbing electrified body and is disposed on the fourth surface of the second substrate and is configured to face an outside surface of the first rubbing electrified body, wherein the third surface is on an outside of the second substrate and the fourth surface is on an inside of the second substrate; and
leader lines connected to each of the first rubbing electrified body and the second rubbing electrified body,
wherein the second structure overlaps the first structure and is stacked on the first structure, triboelectricity is generated by contact therebetween, and electrostatic induction is generated by separation thereof.

2. The electrostatic energy-harvesting device of claim 1 , wherein a storage battery is connected to the leader lines.

3. The electrostatic energy-harvesting device of claim 2 , wherein a rectification diode is connected between the leader lines and the storage battery.

4. An electrostatic energy-harvesting device with a 3-dimensional cone shape comprising:
a plurality of stacked structures, each of the structures including a substrate having a cone shape with an opened lower surface and a hollow inside, a first rubbing electrified body disposed on an inner surface of the substrate, and a second rubbing electrified body including a material having opposite electrification characteristics to the first rubbing electrified body and disposed on an outer surface of the second substrate;
leader lines connected to each of the first rubbing electrified body and the second rubbing electrified body of each of the structures; and
a support configured to pass through the plurality of stacked structures along a vertical axis of the substrate having the cone shape and connect and support the plurality of stacked structures, and formed of a material without electrical conductivity,
wherein the structures overlap and are stacked, triboelectricity is generated by contact therebetween, and electrostatic induction is generated by separation thereof.

5. The electrostatic energy-harvesting device of claim 4 , wherein, in the plurality of stacked structures, the second rubbing electrified body is included only on an outer surface in a lowermost structure, and the first rubbing electrified body is included only on an inner surface in an uppermost structure.

6. The electrostatic energy-harvesting device of claim 4 , wherein a storage battery is connected to the leader lines.

7. The electrostatic energy-harvesting device of claim 4 , wherein a rectification diode is connected between the leader lines and the storage battery.

Assignees

• Research & Business Found Sungkyunkwan Univ

Inventors

• Kim Sang Woo
• Lee Keun Young
• Kim Seong Su

Classifications

• A47C27/00

  Spring, stuffed or fluid mattresses {or cushions} specially adapted for chairs, beds or sofas · CPC title

• A47C7/021 Primary

  Detachable or loose seat cushions · CPC title

• H02N1/04 Primary

  Friction generators · CPC title

• A47C9/002

  with exercising means or having special therapeutic or ergonomic effects · CPC title

• A47C3/16

  of legless type, e.g. with seat directly resting on the floor (A47C3/14 takes precedence); Hassocks; Pouffes · CPC title