DE4240172C2 - Vacuum cleaner with a dust filter bag and a post filter - Google Patents

Vacuum cleaner with a dust filter bag and a post filter

Info

Publication number
DE4240172C2
DE4240172C2 DE19924240172 DE4240172A DE4240172C2 DE 4240172 C2 DE4240172 C2 DE 4240172C2 DE 19924240172 DE19924240172 DE 19924240172 DE 4240172 A DE4240172 A DE 4240172A DE 4240172 C2 DE4240172 C2 DE 4240172C2
Authority
DE
Germany
Prior art keywords
filter
odor
vacuum cleaner
hygiene
fine dust
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.)
Expired - Lifetime
Application number
DE19924240172
Other languages
German (de)
Other versions
DE4240172A1 (en
Inventor
Wilfried Huettemann
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Priority to DE19924240172 priority Critical patent/DE4240172C2/en
Publication of DE4240172A1 publication Critical patent/DE4240172A1/en
Application granted granted Critical
Publication of DE4240172C2 publication Critical patent/DE4240172C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12Dry filters
    • A47L9/122Dry filters flat
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/04Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air

Description

The object of the invention relates to a vacuum cleaner with a dust filter bag and a separate fine dust or hygiene filter as a secondary filter in the exhaust air flow of the Suction blower, the fine dust or hygiene filter in one on the vacuum cleaner provided filter cassette space or the like. exchangeably arranged and or is multilayered.

DE 34 04 395 A1 describes a vacuum cleaner with a dust filter bag in the suction Air flow of the suction fan is known, with a fine or hygiene filter in the form of an electrostatically charged filter mat as a secondary filter Interchangeably arranged for pollen and fine dust in a separate filter housing is not. The post-filter filters the smallest Ver not retained by the dust filter bag impurities up to almost 100% subsequently from the suction air flow. Next Filtering out the finest dust particles is also possible with the known filter device an improvement in the odor of the exhaust air from the vacuum cleaner is possible. This is through a additionally achieved in the filter housing arranged fragrance dispenser. Such a separate one On the one hand, fragrance dispenser reduces the effective filter area of the finest film ters, so that the ultrafine filter must be replaced more often and requires another Ren a structurally complex filter cassette room for simultaneous accommodation filter mat and separate fragrance dispenser. The latter also applies to you Disinfectant body for the exhaust air from vacuum cleaners according to EP 0 174 273 A1 or GB 724 552 too. At this level of technology is the fragrance or disinfectant body inserted separately as an insert filter in the vacuum cleaner. Comparable to the vacuum cleaner According to EP 0 174 273 A1 there is also a vacuum cleaner according to US Pat. No. 1,847,233 which in a flat or ring-shaped filter pack in the exhaust air flow of Vacuum cleaner porous disinfectant materials are embedded.

Get in with the dust picked up during carpet, upholstery or floor vacuuming even the smallest organisms such as bacteria or dust mites in the two dust filters of the vacuum cleaner, especially in the dust filter bag. The massive accumulation Accelerate all impurities in the dust filter bag and possibly also in the secondary filter tends to increase and increase the growth and multiplication of mites and bacteria and their excrement formation, which causes the moisture content in the filters below additional formation of a warm, damp atmosphere is disadvantageously increased. Through the  then accelerated decomposition processes unfold especially in the Dust filter bag an unpleasant smell that the reverse when vacuuming air pollution. This is very often perceived as unpleasant and unsanitary. The known filter devices compensate for their low capacity Odors not optimal. The invention is also intended to remedy this.

Starting from a vacuum cleaner of the type mentioned with a dust file bag and a single or multi-layer fine dust or hygiene filter as night Filters in the exhaust air stream of the suction fan, the invention has for its object Hygiene filter with improved filter effect and service life to create, which too additionally effectively prevents odors and only one filter cassette space of simple construction is required.

The object is achieved according to the invention by the features of the saying 1

Advantageous further developments can be found in the subclaims.

With the filter structure according to the invention, on the one hand, the Service life of the post-filter increased, so that a filter replacement has to be carried out less often and also effectively prevents odor nuisance. The enlarged filter area che also optimizes the filtering effect, especially when the hygiene is developed nefilters as ultra-fine filter of filter class "S". An additional supportive filter kung goes unexpectedly from the gaps of the post-filter filling odor-binding and / or odor-covering filter material, because the exhaust air flow from the suction fan passes through this filter material as a whole must penetrate. In addition, the proposed filter design only requires a filter cassette room of simple construction, z. B. the lid of the Dust collection space of the vacuum cleaner form part of the filter cassette space can. The odor filter combined with the hygiene filter in the training as active carbon filter ensures in any case that unpleasant smells from the filters are full are constantly absorbed and / or covered.

The description below serves to explain the object according to FIG Invention, of which an embodiment is shown in the drawing. It shows:

Fig. 1 shows a vacuum cleaner fragmentary perspective depicting lung with a removable post-filter (hygiene filter) for the exhaust air of the suction fan,

Fig. 2 shows the post-filter in a perspective view in a schematic representation.

For the arrangement of a replaceable secondary filter for the exhaust air flow of the suction fan of a vacuum cleaner selected in FIG. 1, a floor vacuum cleaner ( 1 ) has been used, which is shown in partial section and has a housing ( 2 ) which is accessible in a housing cover ( 3 ) Dust collecting space ( 4 ) and a downstream blower room ( 5 ) for the engine fan not shown is divided.

In the dust collection chamber ( 4 ), a dust filter bag ( 6 ) is used, which, when the housing cover ( 3 ) is closed, can be coupled in a known manner with a connection piece, not shown, for example on the housing cover ( 3 ), for a suction hose. A also from the housing cover ( 3 ) of the dust collection chamber ( 4 ) covered housing section ( 7 ) of the blower chamber housing has a plurality of air outlet openings designed as outlet grilles ( 8 ) for removing the exhaust air generated by the motor fan of the vacuum cleaner ( 1 ). The blow-out grille ( 8 ) connected to the blower chamber housing takes on the replaceable after filter, here referred to as fine dust or hygiene filter ( 9 ), in the manner of a filter cartridge holder ( 10 ).

To secure the position of the secondary filter, either a separate upper cassette cover shown in FIG. 1 in the form of a foldable exhaust air grille ( 11 ) can be seen before, or the housing cover ( 3 ) of the vacuum cleaner itself takes over this function. For this purpose, the closed housing cover ( 3 ) could then, for example, press against a peripheral web edge ( 13 ) of the secondary filter with a cover attachment ( 12 ) on the underside. The housing cover ( 3 ) can also have several cover lugs ( 12 ) in a graduated height, so that if necessary, differently high post-filters can be used. The optionally graduated cover lugs ( 12 ) hold a respective used Nachfil ter positionally and sealed against external air in the filter cassette holder or cassette holder ( 10 ).

The post-filter as a fine dust or hygiene filter ( 9 ) is formed from one or more layers and is folded according to FIG. 2 in a zigzag, meandering or the like. Such a pleated filter realizes large effective filter surfaces ( 14 ) with a small size. The fine dust or hygiene filter ( 9 ) filters out the smallest impurities from the dust filter bag ( 6 ) that are not retained up to almost 100% subsequently from the suction air flow.

In the spaces ( 15 ) formed by the folding process of the hygienic filter ( 9 ), an odor-absorbing and / or odor-covering filter material ( 16 ) is filled in the function of an odor filter ( FIG. 2). The filter material ( 16 ) prevents an annoying odor pollution of the ambient air when vacuuming, which occurs with a progressive decomposition process of the absorbed dust particles, microorganisms, pollen, etc. in the moist dust filter bag atmosphere. The filter material ( 16 ) in the hygiene filter ( 9 ) completely or partially fills at least the spaces ( 15 ) on one filter side ( 18 ). In addition to its odor-binding and / or odor-covering function, the filler also exerts an additional filter effect.

Activated carbon in granular or powdered form is preferably selected as the filter material ( 16 ). However, it can also be an inactive for odor-binding filler z. B. plastic granules or the like. In the spaces ( 15 ) are scattered. However, this material should then be treated with special fragrances that cover the fragrance when the suction air passes. The hygiene filter ( 9 ) combined with the "odor filter" (filter material 16 ) is a preferably electrostatically charged fine dust filter mat of the filter class "S", which is known commercially as HEPA filter (High Efficiency Particluate Air).

It is expedient to arrange the hygiene filter ( 9 ) in the flow path of the suction fan exhaust air flow so that, viewed in the filter throughflow direction, the odor-binding and / or odor-covering filter material ( 16 ) and then the fine dust filter material of the hygiene filter ( 9 ) is flowed through by the exhaust air flow to be filtered. This ensures that, for. B. also fine carbon dust of the odor filter is retained. For hygiene reasons, it is also more pleasant if the smell is removed first and then the fine dust.

In a preferred embodiment, the secondary filter (odor filter and ultra-fine dust or hygiene filter ( 9 )) is a compact filter cassette unit or the like with a housing frame part ( 17 ), for. B. made of plastic with the integrally formed umlau fenden web edge ( 13 ), the fine dust filter ( 9 ) for securing the activated carbon in the spaces ( 15 ) at least on its activated carbon-filled filter side ( 18 ) of an additional filter mat ( 19 ) in training as a fine dust or fine dust filter is covered over a large area. However, the further filter mat ( 19 ) can also be zigzag or meandering, which makes it possible to use this filter in a form-fitting manner in the appropriately designed spaces ( 15 ) of the hygiene filter ( 9 ) filled with activated carbon in the manner of a cover part. This would make it possible to further enlarge the effective filter areas ( 14 ) of the post-filter.

With the separately exchangeable afterfilter in the described cassette shape, there are no installation or construction problems with a vacuum cleaner. The replaceably arranged in the exhaust air stream of the suction blower post-filter (9, 16) of the vacuum cleaner housing (2) to be accommodated easily in a relatively small limited by Staubraum- or housing cover (3) and over the lid accessible filter cassette holder (10). This bracket or the room on has z. B. a length of about 170 mm and a width of 80 mm. The length and width of the secondary filter or of the peripheral web edge ( 13 ) on the housing frame ( 17 ) of the filter is tailored to this. The height of the post filter is preferably 20 mm.

The post-filter can also be designed so that the odor-absorbing and / or ge-covering filter material ( 16 ) in a separately removable filter mat ( 19 ) or activated carbon cover can also be replaced separately, if that is desired.

Claims (8)

1.Vacuum cleaner with a dust filter bag and a separate fine dust or hygiene filter as a secondary filter in the exhaust air flow of the suction fan, the fine dust or hygiene filter being arranged interchangeably in a filter case provided on the vacuum cleaner or the like and being formed in one or more layers, characterized in that that the hygiene filter ( 9 ) is a zigzag-shaped, meandering or the like folded fine dust filter, the gaps ( 15 ) formed by the folding process, at least on one filter side ( 18 ), in whole or in part with an odor-binding and / or odor-covering filter material ( 16 ) (odor filter) are filled.
2. Vacuum cleaner according to claim 1, characterized in that the hygiene filter ( 9 ) is arranged in the flow path of the suction fan exhaust air flow that seen in the filter flow direction, preferably as the odor-binding and / or odor-covering filter material ( 16 ) and then the fine dust filter material of the hygiene filter ( 9 ) is traversed by the exhaust air flow to be filtered.
3. Vacuum cleaner according to claim 1 and 2, characterized in that the filter material ( 16 ) of the odor filter is preferably granular or powder-shaped.
4. Vacuum cleaner according to one of claims 1 to 3, characterized in that the hygiene filter ( 9 ) is a preferably electrostatically charged single or multi-layered fine dust filter mat of filter class "S" (HEPA filter), and that as a filter material ( 16 ) for the odor filter is preferably activated carbon ver.
5. Vacuum cleaner according to one of claims 1 to 4, characterized in that the odor filter is formed with the fine dust or hygiene filter ( 9 ) to a common interchangeable filter unit in the form of a cassette or the like. The fine dust filter at least on its with activated carbon filled filter side ( 18 ) is covered by a further fine dust or fine dust filter mat ( 19 ).
6. Vacuum cleaner according to claim 5, characterized in that the further filter is also zigzag or meandering and the appropriately designed spaces filled with activated carbon ( 15 ) of the hygiene filter ( 9 ) form-fitting with a cover part.
7. Vacuum cleaner according to claim 5 or 6, characterized in that the odor-binding and / or odor-covering filter material ( 16 ) in the cassette can optionally be replaced separately.
8. Vacuum cleaner according to one of claims 5 to 7, characterized in that the exchangeably arranged in the exhaust air flow of the suction fan hygiene filter ( 9 ) with the odor filter in a from the dust chamber cover (housing cover 3 ) or an additional exhaust air grille ( 11 ) limited and secure ge Holding and accessible via the housing cover ( 3 ) filter cassette holder tion ( 10 ) of the vacuum cleaner housing ( 2 ) is preferably formed in the dimensions of about 170 mm × 80 mm × 20 mm.
DE19924240172 1992-11-30 1992-11-30 Vacuum cleaner with a dust filter bag and a post filter Expired - Lifetime DE4240172C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924240172 DE4240172C2 (en) 1992-11-30 1992-11-30 Vacuum cleaner with a dust filter bag and a post filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924240172 DE4240172C2 (en) 1992-11-30 1992-11-30 Vacuum cleaner with a dust filter bag and a post filter

Publications (2)

Publication Number Publication Date
DE4240172A1 DE4240172A1 (en) 1994-06-01
DE4240172C2 true DE4240172C2 (en) 2000-10-19

Family

ID=6473979

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19924240172 Expired - Lifetime DE4240172C2 (en) 1992-11-30 1992-11-30 Vacuum cleaner with a dust filter bag and a post filter

Country Status (1)

Country Link
DE (1) DE4240172C2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511531B1 (en) 2001-01-26 2003-01-28 Hmi Industries, Inc. Room air filtering and freshening device
DE102004042237A1 (en) * 2004-09-01 2006-03-02 Miele & Cie. Kg Vacuum cleaner with a fine dust filter in the exhaust air stream
EP2030554A2 (en) 2007-08-30 2009-03-04 MIELE & CIE. KG Vacuum cleaner with an engine fan with a fine filter in its blow-out air stream
US7837772B2 (en) 2005-06-10 2010-11-23 Electrolux Home Care Products, Inc. Vacuum cleaner filter assembly
DE102010025571A1 (en) 2010-06-30 2012-01-05 Hardy Markwitz Use of function-bearing shaped bodies in vacuum cleaner for suppressing biological metabolism processes in dust collector, mixing and discarding with absorbed and filtered material
US8715820B2 (en) 2007-03-16 2014-05-06 Neenah Gessner Gmbh Odour-absorbing sheet-like structure, method for its production and use of zinc ricinoleate in finely divided solid form on odour-absorbing sheet-like structures

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325110A1 (en) * 1993-07-27 1995-02-02 Licentia Gmbh Vacuum cleaner with a filter
US5593479A (en) * 1995-02-02 1997-01-14 Hmi Industries, Inc. Filter system
DE19615209C1 (en) * 1996-04-18 1997-12-18 Sandler Helmut Helsa Werke Vacuum cleaner bag
DE19720101C1 (en) * 1997-05-14 1998-09-24 Bahman Dr Solouki Adaptor for wet or dry vacuum cleaner for liquid bath filter
US6616722B1 (en) 2000-05-09 2003-09-09 Hmi Industries, Inc. Room air cleaner
US5867863A (en) * 1997-08-14 1999-02-09 Matsushita Home Appliance Corporation Of America Dust bag housing door with final filtration compartment
US6090184A (en) 1998-02-27 2000-07-18 Hmi Industries, Inc. Filter system
US6488744B2 (en) 2001-03-19 2002-12-03 Hmi Industries, Inc. Filter system
US7018438B2 (en) 2002-03-29 2006-03-28 Hmi Industries, Inc. Filtering system
US7181804B2 (en) * 2002-11-07 2007-02-27 Panasonic Corporation Of North America Removable dirt cup assembly with external filter
US7185394B2 (en) * 2002-11-07 2007-03-06 Panasonic Corporation Of North America Dirt cup assembly with attachable and detachable external filter holder
DE102008016956A1 (en) * 2008-04-01 2009-10-08 Branofilter Gmbh Vacuum cleaner has housing with motor, where suction fan unit is driven by motor, and suction nozzle unit is connected to housing by hose, where dust filter bag is arranged in housing in flow path between suction nozzle unit and motor
DE102009002049B4 (en) * 2009-03-31 2012-03-01 BSH Bosch und Siemens Hausgeräte GmbH Electric home appliance with accessory device
DE102009002051A1 (en) * 2009-03-31 2010-10-07 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner with additional equipment and additional material
DK2430960T3 (en) * 2010-08-12 2012-06-18 Miele & Cie Vacuum cleaner filter cartridge
DE102011083445B4 (en) 2011-09-26 2014-07-10 BSH Bosch und Siemens Hausgeräte GmbH Filter device, vacuum cleaner and method for producing a filter device
DE102012219344A1 (en) 2012-10-23 2014-04-24 BSH Bosch und Siemens Hausgeräte GmbH Filter system for a room care appliance

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847233A (en) * 1929-03-02 1932-03-01 Electrolux Corp Vacuum cleaner
GB724552A (en) * 1952-02-13 1955-02-23 Gen Electric Improvements relating to suction cleaners having insecticide vaporisers
DE3404395A1 (en) * 1984-02-08 1985-08-14 Miele & Cie Vacuum cleaner with an electrostatic downstream filter
GB2154862A (en) * 1984-03-01 1985-09-18 James Liou Suction cleaning/blower
EP0174273A1 (en) * 1984-08-14 1986-03-12 Fritz Keller Method and device for disinfecting the air leaving a suction cleaner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847233A (en) * 1929-03-02 1932-03-01 Electrolux Corp Vacuum cleaner
GB724552A (en) * 1952-02-13 1955-02-23 Gen Electric Improvements relating to suction cleaners having insecticide vaporisers
DE3404395A1 (en) * 1984-02-08 1985-08-14 Miele & Cie Vacuum cleaner with an electrostatic downstream filter
GB2154862A (en) * 1984-03-01 1985-09-18 James Liou Suction cleaning/blower
EP0174273A1 (en) * 1984-08-14 1986-03-12 Fritz Keller Method and device for disinfecting the air leaving a suction cleaner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511531B1 (en) 2001-01-26 2003-01-28 Hmi Industries, Inc. Room air filtering and freshening device
DE102004042237A1 (en) * 2004-09-01 2006-03-02 Miele & Cie. Kg Vacuum cleaner with a fine dust filter in the exhaust air stream
DE202004021724U1 (en) 2004-09-01 2010-08-12 Miele & Cie. Kg Vacuum cleaner with a fine dust filter in the exhaust air stream
DE102004042237B4 (en) * 2004-09-01 2011-04-07 Miele & Cie. Kg Vacuum cleaner with a fine dust filter in the exhaust air stream
US7837772B2 (en) 2005-06-10 2010-11-23 Electrolux Home Care Products, Inc. Vacuum cleaner filter assembly
US8715820B2 (en) 2007-03-16 2014-05-06 Neenah Gessner Gmbh Odour-absorbing sheet-like structure, method for its production and use of zinc ricinoleate in finely divided solid form on odour-absorbing sheet-like structures
EP2030554A2 (en) 2007-08-30 2009-03-04 MIELE & CIE. KG Vacuum cleaner with an engine fan with a fine filter in its blow-out air stream
EP2030554A3 (en) * 2007-08-30 2010-12-29 Miele & Cie. KG Vacuum cleaner with an engine fan with a fine filter in its blow-out air stream
DE102007040963A1 (en) 2007-08-30 2009-03-05 Miele & Cie. Kg Vacuum cleaner with a motor fan, in whose exhaust air flow a fine filter is arranged
DE102010025571A1 (en) 2010-06-30 2012-01-05 Hardy Markwitz Use of function-bearing shaped bodies in vacuum cleaner for suppressing biological metabolism processes in dust collector, mixing and discarding with absorbed and filtered material

Also Published As

Publication number Publication date
DE4240172A1 (en) 1994-06-01

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Legal Events

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8120 Willingness to grant licenses paragraph 23
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MIELE & CIE. KG, 33332 GÜTERSLOH, DE

R071 Expiry of right
R071 Expiry of right