Granted Patent B2

US 12,274,979 · App. 17/762,765 · Granted Apr 15, 2025

Inventors: Georg Hepperle (Heilbronn, DE); Daniel Vollmar (Pfinztal, DE)

Assignee: BSH Hausgeräte GmbH

B01D53/323A61L9/16B03C3/019B03C3/12B03C3/155A61L2209/14B01D2259/818

Abstract

Claims (30)

1. A filter unit for an air cleaning device, said filter unit comprising:

an odor filter configured for odor neutralization and embodied as a device for plasma generation, said odor filter comprising an air-permeable high-voltage electrode and an air-permeable counter electrode arranged behind one another in a direction of flow of air, each of the air-permeable high-voltage electrode and the air-permeable counter electrode being formed by a panel element,

wherein the counter electrode has a uniform pattern of openings that are air-permeable,

the high-voltage electrode has a uniform pattern of openings that are air permeable, and

the openings of the high-voltage electrode are offset from the openings of the counter electrode.

2. The filter unit of claim 1 , further comprising an electrostatic filter which includes an ionization unit and a separation unit arranged downstream of the ionization unit in the direction of flow.

3. The filter unit of claim 2 , wherein the separation unit of the electrostatic filter includes a live collecting electrode and a grounded collecting electrode, with the live collecting electrode and the grounded collecting electrode being air-impermeable plates or the live collecting electrode and the grounded collecting electrode being air-permeable electrodes.

4. The filter unit of claim 2 , wherein the odor filter is arranged downstream of the electrostatic filter in the direction of flow.

5. The filter unit of claim 2 , wherein the odor filter and the electrostatic filter are contained in a shared housing.

6. The filter unit of claim 1 , wherein the air-permeable high-voltage electrode and the air-permeable counter electrode of the odor filter are arranged in an orientation which is inclined relative to the direction of flow.

7. The filter unit of claim 1 , wherein at least one of the air-permeable high-voltage electrode and the air-permeable counter electrode of the odor filter has a surface on which an insulation coating is provided.

8. The filter unit of claim 1 , wherein at least one of the high-voltage electrode and the counter electrode has a multilayered structure.

9. The filter unit of claim 1 , wherein at least one of the high-voltage electrode and the counter electrode is made of an air-permeable material or an air-impermeable material with at least one air conduction opening.

10. The filter unit of claim 1 , wherein at least one of the high-voltage electrode and the counter electrode is made of perforated plate, welded mesh, woven wire netting, expanded metal, sintered material and/or foamed material.

11. A filter unit for an air cleaning device, said filter unit comprising:

an odor filter configured for odor neutralization and embodied as a device for plasma generation, said odor filter comprising an air-permeable high-voltage electrode and an air-permeable counter electrode arranged behind one another in a direction of flow of air, each of the air-permeable high-voltage electrode and the air-permeable counter electrode being formed by a panel element,

wherein the high-voltage electrode and the counter electrode are arranged relative to each other in such a way that their structure is rotated about an axis in the plane of the respective one of the electrodes.

12. The filter unit of claim 1 , wherein the odor filter includes a high-voltage transformer configured to generate a temporally changing high voltage for the high-voltage electrode of the odor filter.

13. An air cleaning device, comprising a filter unit, said filter unit comprising:

an odor filter configured for odor neutralization and embodied as a device for plasma generation, said odor filter comprising an air-permeable high-voltage electrode and an air-permeable counter electrode arranged behind one another in a direction of flow of air, each of the air-permeable high-voltage electrode and the air-permeable counter electrode being formed by a panel element,

wherein the counter electrode has a uniform pattern of openings that are air-permeable,

the high-voltage electrode has a uniform pattern of openings that are air permeable, and

the openings of the high-voltage electrode are offset from the openings of the counter electrode.

14. The air cleaning device of claim 13 , wherein the air cleaning device is a vapor extraction device, said filter unit being arranged upstream of a fan of the vapor extraction device.

15. The air cleaning device of claim 13 , wherein the air-permeable high-voltage electrode and the air-permeable counter electrode of the odor filter are arranged in an orientation which is inclined relative to the direction of flow.

16. The air cleaning device of claim 13 , wherein at least one of the air-permeable high-voltage electrode and the air-permeable counter electrode of the odor filter has a surface on which an insulation coating is provided.

17. The air cleaning device of claim 13 , wherein at least one of the high-voltage electrode and the counter electrode has a multilayered structure.

18. The air cleaning device of claim 13 , wherein at least one of the high-voltage electrode and the counter electrode is made of an air-permeable material or an air-impermeable material with at least one air conduction opening.

19. The air cleaning device of claim 13 , wherein at least one of the high-voltage electrode and the counter electrode is made of perforated plate, welded mesh, woven wire netting, expanded metal, sintered material and/or foamed material.

20. The air cleaning device of claim 13 , wherein the high-voltage electrode and the counter electrode are arranged relative to each other in such a way that their structure is rotated about an axis in the plane of the respective one of the electrodes.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (37)