# US 9,039,978 B2 · Low-carbon, material consumption-free air cleaner

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- Number: US 9,039,978 B2
- Document ID: US9039978B2
- Status: Granted
- Kind: B2
- Application number: 13/313,089
- Filed: 2011-12-07
- Published: 2013-06-13
- Granted: 2015-05-26
- Earliest claimed: 2011-12-07
- Applicants: Kun-Liang Hong
- Inventors: Kun-Liang Hong
- Web page: https://patentgrep.com/patent/US9039978B2

## CPC

- B01D 53/30: Controlling by gas-analysis apparatus (regulating non electrical variables in general G05D)
- A61L 9/22: Ionisation
- B03C 3/08: characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
- B03C 3/12: characterised by separation of ionising and collecting stations
- B03C 3/368: {by other than static mechanical means, e.g. internal ventilator or recycler}
- B01D 2257/708: Volatile organic compounds V.O.C.'s
- B01D 2257/90: Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
- B01D 2257/91: Bacteria; Microorganisms
- B01D 2259/4558: for being employed as mobile cleaners for ambient air, i.e. the earth's atmosphere
- B01D 2259/818: Employing electrical discharges or the generation of a plasma
- B03C 2201/10: Ionising electrode with two or more serrated ends or sides
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- B03C: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (separating isotopes B01D59/00; combinations of magnetic or electrostatic separation with separation of solids by other means B03B, B07B)

## Abstract

A low-carbon, material consumption-free air cleaner includes a rectangular box body, a fan, a negative ion generator unit and a dielectric barrier discharge actuator respectively arranged at upper part, middle part and lower part of the rectangular box body, an air input port disposed at the bottom side of the dielectric barrier discharge actuator, and air output port disposed at the top side of the rectangular box body.

## Claims

### Claim 1

A low-carbon, material consumption-free air cleaner, comprising:
a rectangular box body, a dielectric barrier discharge actuator, a negative ion generator unit, a fan, an air input port and an air output port, said air input and output ports defining an air flow path therebetween;
said fan, said negative ion generator unit and said dielectric barrier discharge actuator being disposed in the air flow path respectively arranged at upper part, middle part and lower part of said rectangular box body, said air input port being disposed at a bottom side of said dielectric barrier discharge actuator, said air output port being disposed at a top side of said rectangular box body wherein said fan creates a pressure drop within said rectangular box body, said fan mounted on an upper surface of said negative ion generator unit and sandwiched between said negative ion generator unit and said air output port;
wherein said dielectric barrier discharge actuator includes positive and negative electrode plates disposed in opposing manner about said air flow path, each of said electrode plates having a catalytic coating formed on an insulative planar substrate and a plurality of mesh plates extending transversely across said air flow path, each of said mesh plates including a conductive structure having said catalytic coating;
whereby said air flow path is unimpeded between said mesh plates and said fan;
wherein said dielectric barrier discharge actuator comprises a dielectric catalyst structure, said positive electrode plate arranged at one side of said dielectric catalyst structure and said negative electrode plate arranged at an opposite side of said dielectric catalyst structure, said dielectric catalyst structure substantially defining a rectangular box having opposing top and bottom walls each formed by one of said mesh plates and four solid peripheral walls, said dielectric catalyst structure being made of said conductive structure having said catalytic coating, said coating selected from metal oxide or metal.

### Claim 2 (depends on 1)

The low-carbon, material consumption-free air cleaner as claimed in claim 1, wherein said positive electrode plate and said negative electrode plate each comprise a plurality of electrode pins perpendicularly and evenly arranged at one side of each said electrically insulative planar substrate and extending out of said coating.