Airflow generation device and manufacturing method for same

Patent metadata

Field	Value
Publication number	US-11484859-B2
Application number	US-201816617365-A
Country	US
Kind code	B2
Filing date	May 24, 2018
Priority date	May 26, 2017
Publication date	Nov 1, 2022
Grant date	Nov 1, 2022

Abstract

An airflow generation device having a first dielectric substrate made from a rubber elastic material, a first electrode on or near by a first surface of the first dielectric substrate, a second electrode on a second surface, and a second dielectric substrate made from a rubber elastic material covering the second electrode. It makes the airflows generated by plasma caused from partial gas near by the first surface through applied voltage into the first electrode and the second electrode, and bonding portions between the first electrode and the second electrode and the first dielectric substrate, bonding portions between the second electrode and the second dielectric substrate, and bonding portions between the first dielectric substrate and the second dielectric substrate are bonded by chemical bonds with chemically crosslinking.

First claim

What is claimed is:

1. An airflow generation device comprising:
a first dielectric substrate that is made from a rubber elastic material,
plural electrodes that are provided on the dielectric substrate, the plural electrodes including a first electrode provided on or near by a first surface of the first dielectric substrate, and a second electrode provided on a second surface as a different side surface from the first surface, and
a second dielectric substrate made from a rubber elastic material so as to cover the second electrode,
which makes airflows generated by plasma caused from partial gas near by the first surface of the first dielectric substrate through an applied voltage into the first electrode and the second electrode;
bonding portions between the first electrode and the second electrode and the first dielectric substrate, and bonding portions between the second electrode and the second dielectric substrate are bonded by chemical bonds with chemically crosslinking through unsaturated groups or vinylsilyl-containing-silyl groups, and bonding portions between the first dielectric substrate and the second dielectric substrate are bonded by chemical bonds with chemically crosslinking through unsaturated groups or vinylsilyl-containing-silyl groups which bond to surface of those substrates and/or exist on the surface thereof, and

wherein the second electrode comprises a conductive rubber layer or a conductive resin layer which extends to a side of the first electrode.

2. The airflow generation device according to claim 1 , wherein the first dielectric substrate and the second dielectric substrate are respectively the rubber elastic material in which a composition including rubber ingredient is three-dimensionally network-crosslinked, and which are formed into an elastic sheet-like shape and are made from three-dimensionally crosslinked silicone rubber or three-dimensionally crosslinked ethylene-propylene-diene rubber.

3. The airflow generation device according to claim 1 , wherein bonding portions between the second electrode and the first dielectric substrate and bonding portions between the second electrode and the second dielectric substrate are bonded by chemical bonds with chemically crosslinking, due to the rubber elastic material having unsaturated groups or vinylsilyl-containing-silyl groups.

4. The airflow generation device according to claim 1 , wherein the chemical bonds are covalent bonds through unsaturated groups or vinylsilyl-containing-silyl groups.

5. The airflow generation device according to claim 1 , wherein the unsaturated groups or vinylsilyl-containing-silyl groups exist in a molecule of the rubber elastic material and/or on the surface thereof respectively.

6. The airflow generation device according to claim 1 , wherein the first electrode or the second electrode and the first dielectric substrate, and the first dielectric substrate and the second dielectric substrate are bonded by the chemical bonds with chemically crosslinking, on which the unsaturated groups or vinylsilyl-containing-silyl groups on the surfaces thereof hold a platinum catalyst or a rhodium catalyst.

7. The airflow generation device according to claim claim 1 ,
wherein at bonding portions between the first electrode and the second electrode and the first dielectric substrate, the unsaturated groups or vinylsilyl-containing-silyl groups make covalent bonds to dehydrogenated residues of hydroxyl groups on at least any one of surface of the first electrode and second electrode and the first dielectric substrate,
and at bonding portions between the first dielectric substrate and the second dielectric substrate, dehydrogenated residues of hydroxyl groups on the surface of the first dielectric substrate, or unsaturated groups or vinylsilyl-containing-silyl groups bonded on the surface thereof and/or existing on the surface thereof make covalent bonds.

8. The airflow generation device according to claim 1 , wherein at least any one of surfaces of the first electrode, the second electrode and the first dielectric substrate is a corona treated surface, a plasma treated surface, an ultraviolet treated surface and/or an excimer treated surface.

9. The airflow generation device according to claim 1 , wherein at least a part of the first electrode is protected with a coating layer or a film layer.

10. The airflow generation device according to claim 9 , wherein the coating layer or the film layer is a layer made from a conductive rubber material.

11. The airflow generation device according to claim 1 , wherein the airflow generation device is put at a side of a second surface of the second dielectric substrate onto a subjected object which moves in the air relatively.

12. A manufacturing method for the airflow generation device of claim 1 , the method comprising: a step for bonding the electrodes and the dielectric substrates at bonding portions thereof by chemical bonds through the unsaturated groups or vinylsilyl-containing-silyl groups.

13. The manufacturing method for the airflow generation device according to claim 12 ,
further comprising;
a step for reacting the unsaturated groups or vinylsilyl-containing-silyl groups to the first electrode and the second electrode at a side of a bonding surface with the first dielectric substrate,
a step for applying the first electrode and the second electrode onto the first dielectric substrate at the side of the bonding surface, and for bonding by chemical bonds through the unsaturated groups or vinylsilyl-containing-silyl groups at bonding portions of the first electrode, the second electrode and the first dielectric substrate, and
a step for curing the rubber elastic material over the second electrode with the first dielectric substrate together on the second surface, and thereby bonding the second electrode and the second dielectric substrate, and the first dielectric substrate and the second dielectric substrate at binding portions thereof by chemical bonds through unsaturated groups or vinylsilyl-containing-silyl groups.

Assignees

• Asahi Rubber Inc
• Toshiba Energy Systems & Solutions Corp

Inventors

• Watanabe Nobuyoshi
• Sato Hideaki
• Watanabe Yutaka
• Yamazaki Kenichi
• Asayama Masahiro
• Tanaka Motofumi
• Yasui Hiroyuki
• Osako Toshiki

Classifications

• H05H1/2439

  Surface discharges, e.g. air flow control · CPC title

• C09J183/04 Primary

  Polysiloxanes · CPC title

• H01T19/00

  Devices providing for corona discharge (for charging electrographic elements G03G15/02) · CPC title

• C08G77/12

  containing silicon bound to hydrogen · CPC title

• B01J2219/0896

  Cold plasma · CPC title