WO2004100751A1 - Appareil de nettoyage, en particulier aspirateur, comprenant un dispositif filtrant ceramique - Google Patents

Appareil de nettoyage, en particulier aspirateur, comprenant un dispositif filtrant ceramique Download PDF

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Publication number
WO2004100751A1
WO2004100751A1 PCT/EP2004/005306 EP2004005306W WO2004100751A1 WO 2004100751 A1 WO2004100751 A1 WO 2004100751A1 EP 2004005306 W EP2004005306 W EP 2004005306W WO 2004100751 A1 WO2004100751 A1 WO 2004100751A1
Authority
WO
WIPO (PCT)
Prior art keywords
ceramic filter
filter device
housing
ceramic
cleaning device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2004/005306
Other languages
German (de)
English (en)
Inventor
Wolfgang Kemmerzell
Albert Kleinhenz
Michael Krammer
Georg Schwalme
Thomas Strehler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of WO2004100751A1 publication Critical patent/WO2004100751A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • A47L9/122—Dry filters flat
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/20—Means for cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
    • B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2267/00—Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
    • B01D2267/40—Different types of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/55—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for cleaning appliances, e.g. suction cleaners

Definitions

  • Cleaning device in particular vacuum cleaner, with a ceramic filter device
  • the invention relates to a cleaning device, in particular a vacuum cleaner, according to the preamble of claim 1.
  • the invention further relates to a ceramic filter device according to the preamble of claim 11.
  • HEPA filters High Efficiency Particulate Air
  • These usually consist of a glass fiber composite, which is arranged in a carrier material, for example paper.
  • a carrier material for example paper.
  • HEPA filters it is possible to remove very small harmful particles, in particular allergy-causing substances, from the air to be blown out.
  • These substances include, for example, pollen, fungi and mites or their metabolites or components.
  • the filters are of complex construction and have to be replaced after a certain period of operation due to their contamination.
  • Ceramic foams made of aluminum dioxide are suitable for this.
  • a heating device is provided on the ceramic filter devices, which is activated by a control device if necessary or at regular intervals or even during the entire operation of the cleaning device. With such thermal regeneration, high temperatures occur, for example in the range of 500 ° C.
  • the ceramic filter device which is inherently electrically insulating, can be treated with silicon, which is embedded in the pores. It is then only necessary to apply an electrical voltage to the ceramic filter via graphite electrodes in order to bring about heating.
  • the invention has for its object to provide a cleaning device, in particular a vacuum cleaner, and a ceramic filter device, so that an unproblematic thermal insulation against the housing is made possible.
  • the invention builds on the generic cleaning device in that a heating device is provided for heating the ceramic filter device, in that the ceramic filter device has filter-active and filter-inactive areas, the filter-inactive areas serving at least partially as fastening areas of the ceramic filter device on the housing, and in that the heating device is designed in this way is that the filter-inactive areas are at least partially or only indirectly heated. Since no foreign particles accumulate in the filter-inactive areas, which have to be removed by pyrolytic cleaning, the heating of the ceramic filter can be restricted to the active filter areas. This results in a greatly reduced heating of the inactive areas, so that they are particularly suitable as attachment areas.
  • the filter-inactive areas are realized by applying additional material to the ceramic filter device. Since ceramic filter devices operate on the basis of their porous structure, at least partial destruction or covering of the porous structure is achieved by applying the additional material, which leads to a deactivation of the filter effect.
  • the additional material is applied as an enamel layer and / or as a glaze layer.
  • such layers can also bring about advantages with regard to the mounting of the ceramic filter on the housing, in particular due to the reduction in the frictional resistance to the bearing points.
  • the cleaning device according to the invention is developed in a particularly useful manner in that the fastening areas of the ceramic filter device are fastened to bearing points connected to the housing, the bearing points simultaneously serving for thermal insulation between the ceramic filter device and the housing, and that between the fastening areas and the Bearing points on the housing no further thermally insulating materials are provided.
  • the bearings can be realized for example by heat-resistant plastic holders, which also cause thermal insulation so that the residual heat occurring at the filter-inactive areas is kept away from the housing of the cleaning device.
  • an area of the housing that surrounds the ceramic filter device is at least partially thermally shielded against the ceramic filter device.
  • Such thermal insulation is useful in any case to prevent the housing from overheating. This is particularly necessary in relation to housing areas which are at a short distance from the ceramic filter device and in particular at a short distance from active and thus preferably heated areas of the ceramic filter device.
  • a metal foil in particular an aluminum foil, is provided between the housing and the ceramic filter device for thermal shielding.
  • a metal foil reflects the heat radiation emitted by the ceramic filter device.
  • a layer of a material with low thermal conductivity is provided between the housing and the ceramic filter device for further thermal shielding. This avoids that the heating metal foil undesirably heats the housing wall.
  • the cleaning device according to the invention is in particular designed such that the ceramic filter device is arranged downstream of at least one other filter device of the cleaning device with respect to a main flow direction of the air.
  • the ceramic filter device thus serves for fine filtering, in particular allergy-generating substances are to be removed from the air.
  • ceramics with a pore size of 10 ⁇ m or smaller are preferred.
  • the ceramic filter device can follow at least one further filter device with respect to a main flow direction of the air. is arranged. Since ceramic filter devices are used with different pore sizes', large pores can comparatively a downstream filter device for filtering fine be useful when used. This can also be realized by a ceramic filter device, but with a smaller pore size.
  • the at least one further filter device can also make sense for the at least one further filter device to comprise a HEPA filter.
  • a HEPA filter the advantages of pyrolytic cleaning. Ceramic filter device combined with the reliability of proven HEPA filters. Due to the filtering of the air by the ceramic filter device and the associated removal of fine particles from the air, the HEPA filter has a considerably longer service life due to this combination.
  • the invention builds on the generic ceramic filter device in that the ceramic filter device has a heating device for heating the ceramic filter device, in that the ceramic filter device has filter-active and filter-inactive areas, the filter-inactive areas at least partially serving as fastening areas of the ceramic filter device on a housing of a cleaning device, and that the heating device is designed in such a way that the filter-inactive areas are at least partially not or only indirectly heated.
  • a ceramic filter device can be easily used in a cleaning device according to the invention.
  • the advantages and special features of the cleaning device according to the invention thus also apply to the ceramic filter device according to the invention.
  • the additional material is applied as an enamel layer and / or as a glaze layer.
  • the invention is based on the finding that particularly suitable fastening areas are made available by deactivating certain areas of the ceramic filter. These are not heated directly by the heating device, so that little effort has to be made with regard to the further thermal insulation.
  • the invention In addition to applying the invention to a vacuum cleaner, there are numerous other applications into consideration, for example in air conditioning systems or air washing systems.
  • Figure 1 is a schematic sectional view of part of a cleaning device according to the invention perpendicular to the main flow direction of the air to be cleaned;
  • Figure 2 is a schematic sectional view of part of a cleaning device according to the invention in the main flow direction of the air to be cleaned;
  • FIG. 3 shows a schematic sectional view of a shielded housing part of a cleaning device according to the invention in the area of a ceramic filter device according to the invention.
  • FIG. 1 shows a schematic sectional view of part of a cleaning device according to the invention perpendicular to the main flow direction of the air to be cleaned.
  • a cleaning device 10 in particular a vacuum cleaner, comprises a housing 12 in which several filter devices are provided for cleaning air loaded with foreign particles.
  • a conventional filter device 30 is initially provided, which can be designed, for example, as a paper filter bag.
  • a ceramic filter device 14, which is equipped with a heating device 16, is arranged behind the filter device 30.
  • a filter fleece (not shown) can be provided between the filter device 30 and the ceramic filter 14.
  • the heater 16 is electrically connected to a controller 34.
  • the arrangement of the heating device 16 on the ceramic filter device 14 is shown in a highly schematic manner.
  • the heating effect is applied to the ceramic filter device 14 where it is desired, for example using a partial incorporation of silicon or materials having a comparable effect in the ceramic pores.
  • the ceramic filter device 14 is via bearing 22 with the Housing 12 connected.
  • a thermal shield 24 of the housing 12 is arranged against the ceramic filter device 14.
  • a further filter device 32 for example a HEPA filter, can be provided behind the ceramic filter device 14.
  • FIG. 2 shows a schematic sectional view of part of a cleaning device according to the invention in the main flow direction of the air to be cleaned.
  • Filter-inactive areas 18 are provided on the ceramic filter device 14 by material accumulation. These serve as fastening areas 18 of the ceramic filter device 14 on the housing 12.
  • the fastening areas 18 are located in bearings 22, which are preferably made of a heat-resistant, thermally insulating material.
  • the filter-inactive areas 18 are realized by applying additional material 20, for example an enamel layer or a glaze layer.
  • the fastening areas 18 are filter-inactive, it is not necessary to regenerate them thermally. Furthermore, since cleaning takes place by exposure to heat, the filter-inactive areas 18 remain comparatively cool when the heating device acts on corresponding areas of the ceramic filter device 14 to be cleaned.
  • FIG. 3 shows a schematic sectional view of a shielded housing part of a cleaning device according to the invention in the area of a ceramic filter device according to the invention. Since active areas of the ceramic filter device 14 are arranged in the vicinity of the housing 12, it is also necessary to clean these areas by adding heat. For this reason, it makes sense to isolate the housing wall against the ceramic filter device 14 by means of a thermal shield 24.
  • a thermal shield can initially comprise a metal foil 26 which reflects thermal radiation emanating from the ceramic filter device 14.
  • a layer 28 of material with lower thermal conductivity, for example a glass wool layer can furthermore be provided between the metal foil 26 and the housing 12.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)

Abstract

L'invention concerne un appareil de nettoyage (10), en particulier un aspirateur, dans lequel de l'air chargé en particules étrangères est épuré, cet appareil comprenant un boîtier (12) et un dispositif filtrant céramique (14) fixé à ce boîtier (12). Selon l'invention, pour que ce dispositif filtrant céramique (14) puisse faire l'objet d'un nettoyage par pyrolyse et puisse être fixé de manière simple au boîtier (12), l'appareil selon l'invention comprend un dispositif chauffant (16) servant à chauffer le dispositif filtrant céramique (14), ledit dispositif filtrant céramique (14) comprend des zones actives et des zones inactives en termes de filtration, les zones inactives (18) servant au moins partiellement de zones de fixation (18) pour fixer le dispositif filtrant céramique (14) au boîtier (12), et le dispositif chauffant (16) est conçu de telle sorte que les zones inactives (18), au moins partiellement, ne soient pas chauffées ou seulement de façon indirecte. Grâce à cette configuration, les zones inactives (18) peuvent rester plus froides que le reste du dispositif filtrant céramique (14) de sorte qu'elles sont particulièrement bien adaptées à la fixation dudit dispositif au boîtier (12).
PCT/EP2004/005306 2003-05-15 2004-05-17 Appareil de nettoyage, en particulier aspirateur, comprenant un dispositif filtrant ceramique Ceased WO2004100751A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10321975A DE10321975A1 (de) 2003-05-15 2003-05-15 Reinigungsgerät, insbesondere Staubsauger, mit einer Keramikfiltereinrichtung
DE10321975.7 2003-05-15

Publications (1)

Publication Number Publication Date
WO2004100751A1 true WO2004100751A1 (fr) 2004-11-25

Family

ID=33394639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/005306 Ceased WO2004100751A1 (fr) 2003-05-15 2004-05-17 Appareil de nettoyage, en particulier aspirateur, comprenant un dispositif filtrant ceramique

Country Status (2)

Country Link
DE (1) DE10321975A1 (fr)
WO (1) WO2004100751A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535589A (en) * 1981-05-26 1985-08-20 Nippon Soken, Inc. Exhaust gas cleaning device for internal combustion engine
EP0286932A2 (fr) * 1987-04-11 1988-10-19 FEV Motorentechnik GmbH & Co. KG Dispositif de filtrage des particules de suie de l'échappement d'un moteur à combustion
JPH03207418A (ja) * 1990-01-10 1991-09-10 Matsushita Electric Ind Co Ltd 集塵機用フード
EP0657631A1 (fr) * 1993-12-09 1995-06-14 Isuzu Ceramics Research Institute Co., Ltd. Filtre à particules pour moteurs diesel
JPH1119775A (ja) * 1997-06-30 1999-01-26 Kobe Steel Ltd オイルミストを含む溶接ヒュームの吸引除去装置及び吸引除去方法
WO1999022844A1 (fr) * 1997-11-01 1999-05-14 Btg International Limited Separation de matieres particulaires solides d'ecoulements de fluides
WO2001041619A1 (fr) * 1999-12-08 2001-06-14 Smc Marketing Corporation Aspirateur sans sac ameliore
WO2003041553A1 (fr) * 2001-11-17 2003-05-22 Wirth, Gabriele Appareil epurateur

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535589A (en) * 1981-05-26 1985-08-20 Nippon Soken, Inc. Exhaust gas cleaning device for internal combustion engine
EP0286932A2 (fr) * 1987-04-11 1988-10-19 FEV Motorentechnik GmbH & Co. KG Dispositif de filtrage des particules de suie de l'échappement d'un moteur à combustion
JPH03207418A (ja) * 1990-01-10 1991-09-10 Matsushita Electric Ind Co Ltd 集塵機用フード
EP0657631A1 (fr) * 1993-12-09 1995-06-14 Isuzu Ceramics Research Institute Co., Ltd. Filtre à particules pour moteurs diesel
JPH1119775A (ja) * 1997-06-30 1999-01-26 Kobe Steel Ltd オイルミストを含む溶接ヒュームの吸引除去装置及び吸引除去方法
WO1999022844A1 (fr) * 1997-11-01 1999-05-14 Btg International Limited Separation de matieres particulaires solides d'ecoulements de fluides
WO2001041619A1 (fr) * 1999-12-08 2001-06-14 Smc Marketing Corporation Aspirateur sans sac ameliore
WO2003041553A1 (fr) * 2001-11-17 2003-05-22 Wirth, Gabriele Appareil epurateur

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199142, Derwent World Patents Index; Class J01, AN 1991-307933, XP002297181 *
PATENT ABSTRACTS OF JAPAN vol. 0154, no. 78 (C - 0891) 4 December 1991 (1991-12-04) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 04 30 April 1999 (1999-04-30) *

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