Electrostatic precipitation type air cleaner

Patent metadata

Field	Value
Publication number	US-9873128-B2
Application number	US-201615052465-A
Country	US
Kind code	B2
Filing date	Feb 24, 2016
Priority date	Feb 25, 2015
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

An electrostatic precipitation type air cleaner is disclosed herein. The air cleaner includes a charging module to charge dust particles by applied power and a collection module to collect the dust particles charged by the charging module. The collection module includes high voltage electrode plates and low voltage electrode plates disposed opposite the high voltage electrode plates so as to form air passages with the high voltage electrode plates, at least one of the high voltage electrode plates and the low voltage electrode plates includes a conductive member, a dielectric member to surround at least a part of the conductive member and coating layers configured to coat the surfaces of the dielectric member, and the coating layer includes 0.5 w % to 5 w % of zinc oxide. The coating layer including 0.5 w % to 5 w % of zinc oxide may have high antimicrobial activity and maintain high surface hardness.

First claim

What is claimed is:

1. An electrostatic precipitation type air cleaner comprising:
a charging module to charge particles by an applied power; and
a collection module to collect the charged particles, the collection module including at least one high voltage electrode plate and at least one low voltage electrode plate, the high and low voltage electrode plates being spaced apart from each other to form an air passage,
wherein at least one of the high and low voltage electrode plates comprises:
a conductive member,
a dielectric member to surround at least a portion of the conductive member, and
at least one coating layer to coat a surface of the dielectric member,
whereby the coating layer includes 0.5 w % to 5 w % of zinc oxide.

2. The electrostatic precipitation type air cleaner of claim 1 , wherein the coating layer further includes 20 w % to 30 w % of urethane acrylate.

3. The electrostatic precipitation type air cleaner of claim 1 , wherein the coating layer further includes 1 w % to 3 w % of a photoinitiator.

4. The electrostatic precipitation type air cleaner of claim 1 , wherein the coating layer further includes 45 w % to 50 w % of isopropyl alcohol.

5. The electrostatic precipitation type air cleaner of claim 1 , wherein the coating layer further includes at least one of butyl acrylate, pentaerythritol triacrylate, and polyethylene glycol diacrylate.

6. The electrostatic precipitation type air cleaner of claim 1 , wherein the thickness of the coating layer is 5 μm to 10 μm.

7. The electrostatic precipitation type air cleaner of claim 1 , wherein zinc oxide is a powder having a particle size of 5 μm to 1000 μm.

8. The electrostatic precipitation type air cleaner of claim 1 , wherein the dielectric member includes polymer plastic having a thickness of 50 μm to 500 μm.

9. The electrostatic precipitation type air cleaner of claim 1 , wherein the coating layer further includes 20 w % to 30 w % of urethane acrylate, 1 w % to 3 w % of a photoinitiator, and 45 w % to 50 w % of isopropyl alcohol.

10. The electrostatic precipitation type air cleaner of claim 1 , wherein the coating layer further includes 28 w % of urethane acrylate, 2 w % of 1-hydroxy cyclohexyl phenyl ketone, 47 w % of isopropyl alcohol, 8 w % of butyl acrylate, 4 w % of pentaerythritol triacrylate, and 8 w % of polyethylene glycol diacrylate.

11. The electrostatic precipitation type air cleaner of claim 1 , wherein the conductive member is a screen-print on the dielectric member.

12. The electrostatic precipitation type air cleaner of claim 1 , wherein:
the dielectric member includes a first dielectric film and a second dielectric film,
the conductive member is disposed between the first and second dielectric films, and
the coating layer is disposed on the outer surfaces of the first and second dielectric films.

13. The electrostatic precipitation type air cleaner of claim 12 , further comprising an adhesive member provided between the first dielectric film and the conductive member,
wherein the adhesive member includes a stack part provided on the conductive member and at least one protrusion part that protrudes outside of the edges of the conductive member, and
wherein the first dielectric film is adhered to a first surface of the protrusion part and the second dielectric film is adhered to a second surface of the protrusion part.

14. The electrostatic precipitation type air cleaner of claim 12 , further comprising an adhesive member provided between the second dielectric film and the conductive member,
wherein the adhesive member includes a stack part provided on the conductive member and at least one protrusion part that protrudes outside of the edges of the conductive member, and
wherein the first dielectric film is adhered to a first surface of the protrusion part and the second dielectric film is adhered to a second surface of the protrusion part.

15. The electrostatic precipitation type air cleaner of claim 13 , wherein:
the coating layer further includes 3 w % of zinc oxide, 28 w % of urethane acrylate, 2 w % of 1-hydroxy cyclohexyl phenyl ketone, 47 w % of isopropyl alcohol, 8 w % of butyl acrylate, 4 w % of pentaerythritol triacrylate, and 8 w % of polyethylene glycol diacrylate.

16. The electrostatic precipitation type air cleaner of claim 14 , wherein:
the coating layer further includes 3 w % of zinc oxide, 28 w % of urethane acrylate, 2 w % of 1-hydroxy cyclohexyl phenyl ketone, 47 w % of isopropyl alcohol, 8 w % of butyl acrylate, 4 w % of pentaerythritol triacrylate, and 8 w % of polyethylene glycol diacrylate.

Assignees

• Lg Electronics Inc

Inventors

• Kim Taeyoung
• Kim Sangyoon
• Hyun Okchun
• Lee Yanghwa

Classifications

• B03C3/41

  Ionising-electrodes · CPC title

• B03C3/40 Primary

  Electrode constructions · CPC title

• B03C3/12

  characterised by separation of ionising and collecting stations · CPC title

• B03C3/60

  Use of special materials other than liquids · CPC title

• B03C3/32

  Transportable units, e.g. for cleaning room air · CPC title