Electronic dust collecting apparatus and method of manufacturing dust collector

Patent metadata

Field	Value
Publication number	US-10994283-B2
Application number	US-201815912157-A
Country	US
Kind code	B2
Filing date	Mar 5, 2018
Priority date	Mar 6, 2017
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

An electronic dust collecting apparatus is provided. The electronic dust collecting apparatus includes a charger, and a dust collector installed downstream of the charger, wherein the dust collector includes a dust collecting sheet including a plurality of first and second electrodes that are alternately arranged therein and a plurality of bent portions that are bent in a zigzag form in such a way that the plurality of first electrodes and the plurality of second electrode face each other.

First claim

What is claimed is:

1. An electronic dust collecting apparatus comprising:
a charger; and
a dust collector installed downstream of the charger,
wherein the dust collector comprises a dust collecting sheet comprising a plurality of first electrodes and a plurality of second electrodes which are alternately arranged therein and a plurality of bent portions that are bent in a zigzag form in such a way that the plurality of first electrodes and the plurality of second electrodes face each other, and
wherein the dust collecting sheet comprises a first sheet and a second sheet laminated to one surface of the first sheet; and
wherein the plurality of first and second electrodes are configured with a conductive pattern printed or deposited on the one surface of the first sheet.

2. The electronic dust collecting apparatus of claim 1 , wherein the plurality of first electrodes comprises a high-voltage electrode; and
wherein the plurality of second electrodes comprises a low-voltage electrode with a lower voltage than the plurality of first electrodes.

3. The electronic dust collecting apparatus of claim 2 , wherein the plurality of first and second electrodes are disposed along a width direction of the dust collecting sheet; and
wherein the plurality of first electrodes and the plurality of second electrodes are alternately stacked in a longitudinal direction of the dust collecting sheet.

4. The electronic dust collecting apparatus of claim 1 , wherein the plurality of bent portions is disposed in a zigzag form in a longitudinal direction of the dust collecting sheet between the plurality of first electrodes and the plurality of second electrodes.

5. The electronic dust collecting apparatus of claim 1 , wherein the dust collecting sheet comprises a plurality of openings that are disposed in the plurality of bent portions, respectively.

6. The electronic dust collecting apparatus of claim 5 , wherein the dust collecting sheet comprises a plurality of slits that are disposed in the plurality of bent portions, respectively; and
wherein the plurality of slits form the plurality of openings via bending of the dust collecting sheet, respectively.

7. The electronic dust collecting apparatus of claim 6 , wherein the plurality of slits are disposed in parallel to the plurality of first and second electrodes in a longitudinal direction of the plurality of first electrodes and the plurality of second electrodes.

8. The electronic dust collecting apparatus of claim 7 , wherein the slits are disposed in a central portion between the plurality of first electrodes and the plurality of second electrodes on the dust collecting sheet.

9. The electronic dust collecting apparatus of claim 7 , wherein a portion of the plurality of second electrodes is exposed to an external side of the dust collecting sheet.

10. The electronic dust collecting apparatus of claim 9 ,
wherein the plurality of slits are disposed along a one-side edge of the plurality of second electrodes and expose the one-side edge of the plurality of second electrodes.

11. The electronic dust collecting apparatus of claim 10 , wherein the plurality of second electrodes comprises a plurality of grooves concave from the one-side edge; and
wherein the plurality of slits are disposed along the one-side edge of the plurality of second electrodes.

12. The electronic dust collecting apparatus of claim 9 , wherein the dust collecting sheet comprises at least one of a plurality of through holes or a plurality of through slits configured to externally expose the plurality of second electrodes.

13. The electronic dust collecting apparatus of claim 1 , wherein the plurality of first and second electrodes are disposed of a material with electric resistance of about 10 7 Ω·cm or more.

14. The electronic dust collecting apparatus of claim 2 , wherein the charger comprises a plurality of discharge electrodes with a high voltage applied thereto and a plurality of corresponding electrodes arranged between the plurality of discharge electrodes;
wherein plus power and minus power are alternately supplied to the plurality of discharge electrodes by a first power source; and
wherein plus power and minus power are alternately supplied to the plurality of first electrodes to correspond to the plurality of discharge electrodes by a second power source.

15. The electronic dust collecting apparatus of claim 14 , wherein the charger comprises a first switch configured to convert polarity of a voltage applied to the plurality of discharge electrodes and the plurality of corresponding electrodes; and
wherein the dust collector comprises a second switch configured to convert polarity of a voltage applied to the plurality of first electrodes and the plurality of second electrodes.

16. An electronic dust collecting apparatus comprising:
a charger; and
a dust collector downstream of the charger,
wherein the dust collector comprises:
a first dust collecting sheet comprising a plurality of high-voltage electrodes arranged therein and a plurality of first bent portions that are bent in a zigzag form between the plurality of high-voltage electrodes; and
a second dust collecting sheet comprising a plurality of low-voltage electrodes arranged therein and a plurality of second bent portions that are bent in a zigzag form between the plurality of low-voltage electrodes, and
wherein the first dust collecting sheet and the second dust collecting sheet are arranged in an interdigital structure in which the plurality of high-voltage electrodes and the plurality of low-voltage electrodes alternately face each other.

17. The electronic dust collecting apparatus of claim 16 , wherein the first and second dust collecting sheets comprise a plurality of openings that are disposed in the plurality of first and second bent portions, respectively; and
wherein an end of a first bent portion, which is adjacent to the second dust collecting sheet, and an end of a second bent portion, which is adjacent to the first dust collecting sheet, are open and a low-voltage electrode is inserted between the high-voltage electrodes facing high-voltage electrodes.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Noh Hyong-Soo
• Kochiyama Yasuhiko
• Gil Hye-Won

Classifications

• Y02A50/2351

  Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust · CPC title

• B03C3/66

  Applications of electricity supply techniques · CPC title

• B03C3/51 Primary

  Catch- space electrodes, e.g. slotted-box form · CPC title

• B03C3/08

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

• B03C2201/04

  Ionising electrode being a wire · CPC title