Electric dust collecting filter and electric dust collecting device comprising same

Patent metadata

Field	Value
Publication number	US-11040355-B2
Application number	US-201916967309-A
Country	US
Kind code	B2
Filing date	Jan 31, 2019
Priority date	Feb 5, 2018
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

An electric dust collecting filter includes a plurality of film electrodes that are arranged apart from each other at regular intervals and form an electric field to collect foreign matter in the air. The film electrode includes an insulating part that defines one surface and the other surface of the film electrode, a first electrode part disposed on one side inside the insulating part and having a plurality of first wire electrodes spaced apart from each other, and a second electrode part disposed on the other side inside the insulating part and having a plurality of second wire electrodes that are disposed between the plurality of first wire electrodes spaced apart from each other and provided alternately with the plurality of first wire electrodes.

First claim

The invention claimed is:

1. An electric dust collecting filter comprising:
a plurality of film electrodes spaced apart from one another and configured to generate electric fields to collect foreign matters in air,
wherein each of the plurality of film electrodes comprises:
an insulating part that defines a first surface of a film electrode among the plurality of film electrodes and a second surface of the film electrode,
a first electrode part disposed at a first inside surface of the insulating part, the first electrode part comprising a plurality of first wire electrodes spaced apart from one another, and
a second electrode part disposed at a second inside surface of the insulating part facing the first inside surface, the second electrode part comprising a plurality of second wire electrodes that are spaced apart from one another and alternately disposed with the plurality of first wire electrodes, each of the plurality of second wire electrodes being disposed between two adjacent ones of the plurality of first wire electrodes.

2. The electric dust collecting filter according to claim 1 , wherein the first electrode part further comprises a first electrode part body connected to the plurality of first wire electrodes and a first power apply part configured to receive power from a power source,
wherein the second electrode part further comprises a second electrode part body connected to the plurality of second wire electrodes and a second power apply part configured to receive power from the power source, and
wherein the plurality of first wire electrodes extend from the first electrode part body, and the plurality of second wire electrodes extend from the second electrode part body.

3. The electric dust collecting filter according to claim 2 , wherein the plurality of first wire electrodes extend from the first electrode part body toward the second electrode part body, and
wherein the plurality of second wire electrodes extend from the second electrode part body toward the second electrode part body.

4. The electric dust collecting filter according to claim 1 , wherein each of the plurality of film electrodes further comprises one or more electrode parts spaced apart from the first electrode part and the second electrode part.

5. The electric dust collecting filter according to claim 4 , wherein the one or more electrode parts comprise a plurality of third electrode parts, and
wherein each of the third electrode parts comprises:
a third electrode part body configured to receive power from a power source; and
a third wire that extends from the third electrode part body and is disposed between a first wire among the plurality of first wire electrodes and a second wire among the plurality of second wire electrodes, the first wire and the second wire being positioned adjacent to each other.

6. The electric dust collecting filter according to claim 5 , wherein the third wire extends in a direction parallel to the first wire and the second wire.

7. The electric dust collecting filter according to claim 6 , wherein the first wire, the second wire, and the third wire are alternately disposed.

8. The electric dust collecting filter according to claim 6 , wherein the plurality of film electrodes are configured to collect the foreign matters in the air based on different outputs of direct current (DC) power being respectively applied to a first film electrode and a second film electrode that are disposed adjacent to each other among the plurality of film electrodes, and
wherein the plurality of film electrodes are configured to separate the foreign matters from the plurality of film electrodes based on different outputs of alternating current (AC) power being respectively applied to the first electrode part, the second electrode part, and the third electrode part of each of the first film electrode and the second film electrode.

9. The electric dust collecting filter according to claim 8 , wherein the plurality of film electrodes are configured to, based on the foreign matters being separated from the plurality of film electrodes, change moving directions of the foreign matters by the electric fields generated in the first film electrode and the second film electrode.

10. The electric dust collecting filter according to claim 1 , wherein the plurality of film electrodes are configured to, based on different outputs of alternating current (AC) power being respectively applied to the first electrode part and the second electrode part, separate the foreign matters from the plurality of film electrodes.

11. The electric dust collecting filter according to claim 1 , wherein the plurality of film electrodes are configured to, based on different outputs of direct current (DC) power being respectively applied to a first film electrode and a second film electrode that are adjacent to each other among the plurality of film electrodes, collect the foreign matters in the air by an electric field generated between the first film electrode and the second film electrode.

12. The electric dust collecting filter according to claim 11 , wherein the first electrode part and the second electrode part of the first film electrode are configured to receive a same polarity of the DC power, and
wherein the first electrode part and the second electrode part of the second film electrode are configured to receive a same polarity of the DC power.

13. The electric dust collecting filter according to claim 1 , wherein the plurality of first wire electrodes and the plurality of second wire electrodes extend in an extension direction, and allow the air to flow along the extension direction.

Assignees

• Lg Electronics Inc

Inventors

• Yoo Imsung
• Pyo Joonho
• Lee Ayeong
• Lee Taehee

Classifications

• B03C3/70

  insulating in electric separators (B03C3/53 takes precedence) · CPC title

• B03C3/66

  Applications of electricity supply techniques · CPC title

• B03C3/41

  Ionising-electrodes · CPC title

• B03C3/08 Primary

  characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream · CPC title

• B03C3/45 Primary

  Collecting-electrodes · CPC title