Electronic dust collecting apparatus and method of manufacturing dust collector

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.