Low temperature plasma air purifier with high speed ion wind self-adsorption

• US 10,639,646 B2
• Filed: 08/18/2017
• Issued: 05/05/2020
• Est. Priority Date: 01/29/2016
• Status: Active Grant

• Current Assignee: Shenzhen Jiarunmao Electronic Co., Ltd.
• Original Assignee: Shenzhen Jiarunmao Electronic Co., Ltd.
• Inventors: Chen, Shunpeng
• Primary Examiner(s): Orlando, Amber R
• Assistant Examiner(s): Turner, Sonji
• Application Number:
  US15/680,233
• Publication Number:
  US 20170341088A1
• Time in Patent Office: 991 Days
• CPC Class Codes: B03C 2201/06 Ionising electrode being a needle
• CPC Class Codes: B03C 3/09 characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream
• CPC Class Codes: B03C 3/12 characterised by separation of ionising and collecting stations
• CPC Class Codes: B03C 3/363 located before the filter
• CPC Class Codes: B03C 3/368 by other than static mechanical means, e.g. internal ventilator or recycler
• CPC Class Codes: B03C 3/41 Ionising-electrodes
• CPC Class Codes: B03C 3/47 flat, e.g. plates, discs, gratings
• CPC Class Codes: B03C 3/60 Use of special materials other than liquids

Abstract

The present invention discloses a low temperature plasma air purifier with high speed ion wind self-adsorption, which comprises a power module releasing a high-voltage direct current, a housing functioning as a support, an emitter electrode generating a strong ionization field, and a dust collecting electrode adsorbing various particles, wherein the emitter electrode comprises one or more needle-like conductors, circular holes fitted with each of the needle-like conductors are provided on the dust collecting electrode. The present invention has a simple structure and a small size, and realizes a high purification speed without the assistance of fans. The porous metal structure of the dust collecting electrode increases the contact area for air purification so that the dust collecting electrode has a strong adsorbability, which ensures a good air purification effect.

Claims

1. A low temperature plasma air purifier with high speed ion wind self-adsorption, comprising

a power module releasing a high-voltage direct current,

a housing functioning as a support,

an emitter electrode generating a strong ionization field, and

a dust collecting electrode adsorbing various particles,

wherein the emitter electrode comprises one or more needle-like conductors, circular holes provided on the dust collecting electrode are arranged around each of the needle-like conductors,

the one or more needle-like conductors on the emitter electrode that extend from the power module in a direction toward the circular holes on the dust collecting electrode,

the power module is detachably secured to the housing or is provided separately from the housing, and

a plasma region is formed by communication of the emitter electrode with the dust collecting electrode;

wherein each circular hole has an arc-shaped transition section on an inner wall at an opening thereof, and the transition section is provided at a position where a corresponding needle-like conductor is inserted;

each conductor of the emitter electrode has a length from 2 mm to 20 mm; and

the low temperature plasma air purifier further comprises an air guide cone preventing dust from gathering, which has a curved cone structure and is accommodated within the housing, with a tip part pointed at an air inlet of the housing.

2. The low temperature plasma air purifier with high speed ion wind self-adsorption according to claim 1, wherein each conductor of the emitter electrode has a length from 5 mm to 15 mm.

3. The low temperature plasma air purifier with high speed ion wind self-adsorption according to claim 1, wherein each needle-like conductor is composed of a cylindrical body and a pointed tip in an integrated structure, one end of the cylindrical body connected to a high voltage power supply circuit and the other end thereof formed as the pointed tip, and the pointed tip of each needle-like conductor is directed toward a center of a corresponding circular hole on the dust collecting electrode.

4. The low temperature plasma air purifier with high speed ion wind self-adsorption according to claim 3, wherein the dust collecting electrode and the power module are electrically connected through a wire that extends from the power module, the circular holes on the dust collecting electrode are arranged in a circular array or a rectangle array, and each of the circular holes has a bore diameter of 5-50 mm.

5. The low temperature plasma air purifier with high speed ion wind self-adsorption according to claim 1, further comprising a cover provided at the air inlet of the housing, and the cover and the housing in direct communication and detachable from each other.