US 12,251,712 B2
Electrostatic filter unit for an air cleaning device and air cleaning device
Georg Hepperle, Heilbronn (DE); and Daniel Vollmar, Pfinztal (DE)
Assigned to BSH Hausgeräte GmbH, Munich (DE)
Appl. No. 17/762,763
Filed by BSH Hausgeräte GmbH, Munich (DE)
PCT Filed Nov. 4, 2020, PCT No. PCT/EP2020/080876
§ 371(c)(1), (2) Date Mar. 23, 2022,
PCT Pub. No. WO2021/099110, PCT Pub. Date May 27, 2021.
Claims priority of application No. 102019217832.4 (DE), filed on Nov. 19, 2019.
Prior Publication US 2022/0339641 A1, Oct. 27, 2022
Int. Cl. B01D 53/32 (2006.01); A61L 9/22 (2006.01); B03C 3/019 (2006.01); B03C 3/12 (2006.01); B03C 3/155 (2006.01); B03C 3/41 (2006.01)
CPC B03C 3/12 (2013.01) [A61L 9/22 (2013.01); B01D 53/323 (2013.01); B03C 3/019 (2013.01); B03C 3/155 (2013.01); B03C 3/41 (2013.01); A61L 2209/14 (2013.01); B01D 2259/818 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electrostatic filter unit for an air cleaning device, said filter unit comprising:
an ionization unit configured to ionize particles in air and to deplete odor; and
a separation unit arranged downstream of the ionization unit in a direction of flow of air and configured to separate particles,
wherein the ionization unit comprises a device for generating a dielectrically impeded barrier discharge, said device including at least two electrodes, and
at least one of the at least two electrodes of the ionization unit is embodied as a high-voltage electrode and at least one of the at least two electrodes is embodied as a counter electrode, and further comprising an electrical insulator arranged between the at least two electrodes.