EP2233053A2 - Dispositif de filtre pour un aspirateur - Google Patents

Dispositif de filtre pour un aspirateur Download PDF

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Publication number
EP2233053A2
EP2233053A2 EP10153968A EP10153968A EP2233053A2 EP 2233053 A2 EP2233053 A2 EP 2233053A2 EP 10153968 A EP10153968 A EP 10153968A EP 10153968 A EP10153968 A EP 10153968A EP 2233053 A2 EP2233053 A2 EP 2233053A2
Authority
EP
European Patent Office
Prior art keywords
filter
vacuum cleaner
filter medium
filter device
support structure
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.)
Granted
Application number
EP10153968A
Other languages
German (de)
English (en)
Other versions
EP2233053A3 (fr
EP2233053B1 (fr
Inventor
Alexander Flegler
Julian Kastner
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 EP2233053A2 publication Critical patent/EP2233053A2/fr
Publication of EP2233053A3 publication Critical patent/EP2233053A3/fr
Application granted granted Critical
Publication of EP2233053B1 publication Critical patent/EP2233053B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1409—Rigid filtering receptacles

Definitions

  • the present invention relates to a filter device for a vacuum cleaner, which upstream, intermediate or is nachschaltbar a Staubabscheideech arranged in a dust chamber of the vacuum cleaner, wherein the filter device comprises at least one filter medium and at least one support structure.
  • the DE 10 2006 009 257 B3 known which discloses a filter for a vacuum cleaner, which is characterized by a cassette-like base frame and a hinged thereto cover frame, which are interconnected by a hinge means and molded onto at least one filter medium.
  • a disadvantage of such a filter may be that the side walls of the base frame or the cover frame are formed in a collapsed state of the filter cartridge on the one hand on the side surfaces with air-impermeable walls or on the other hand cover the filter medium in the hinge areas, these surfaces can not allow Saugluftfilterung.
  • a filter cartridge for a vacuum cleaner which consists of a cassette-like base frame and a cover grid hinged therein and in which between the base frame and the grille a plate-shaped filter element is inserted, which separates the filter cassette in front of one in the dust and fan room of the vacuum cleaner partition provided passage opening is arranged sealed.
  • one-piece filter cartridges are known in which the flat filter material is molded into the base frame, or in the grille with.
  • a disadvantage of such filter cartridges may be that the commercially available dust bags, the flexible filter medium of the dust bag on the Filter cartridge is applied and thereby at least a flow through with suction air is difficult, or has an increased flow resistance result or that the entire filter surface through a particularly bulging dust bag over the entire surface closes the filter cartridge.
  • the invention has for its object to provide a comparison with the prior art improved filter device for a vacuum cleaner.
  • a largely unobstructed suction air flow should be provided even with bulging dust bags.
  • a filter device is to be provided, which provides an enlarged filter surface with unchanged connection geometry.
  • the filter device should be able to accommodate additional filter material with alternative filter properties.
  • a vacuum cleaner is understood to mean appliances powered by electrical energy to absorb dust, including both mains operated and battery or cordless appliances.
  • a Staubabscheidetician is a device in which the dirt-laden suction air can be cleaned of the dirt.
  • such a Staubabscheidetician have a filter bag with or without basket, or a centrifugal separator.
  • the Staubabscheidetician can be located in a dust chamber.
  • the surface perpendiculars and the set of parallel planes were used as geometrical aids.
  • Under a surface perpendicular of the filter medium are the infinite To understand many straight lines that are perpendicular to the air flowing through the filter surface of the filter medium.
  • the set of parallel planes includes an infinite number of planes that are parallel to each other. It can fill the entire, three-dimensional space. The from the prior art document DE 10 2006 009 257 B3 known filter does not fall under the protection claim, since there are a lot of parallel planes containing all the surface perpendiculars of the filter medium.
  • the filter device according to the invention can advantageously be used in a vacuum cleaner for filtering an air stream, in particular since the filter according to the invention can be in particular air-permeable, and can have a retaining effect on particles.
  • a filter device according to the invention can be advantageously used in a vacuum cleaner, since, for example, despite a Staubabscheideiki still particles in the suction air can be.
  • this filter device can be used as a motor protection or exhaust air filter.
  • a motor protection filter can be understood as meaning a filter which can be located in a suction opening of a vacuum cleaner motor. This motor protection filter can provide protection of the engine from particles in the intake air in the absence of Staubabscheideurban, for example, caused by incorrect operation.
  • a motor protection filter may be that the motor is protected from particles that have not been picked up by the dust collector.
  • An exhaust filter can advantageously clean the exiting from a vacuum cleaner air of particles that may arise, for example, from the abrasion of the carbon brushes of the vacuum cleaner, or may pose a health hazard to the user.
  • a basic frame of the carrier structure of a filter device can be understood as the part of the carrier structure which can be located at the inlet or outlet surface of a suction air flow and can seal it.
  • a connection of the filter medium to the support structure can advantageously prevent the formation of bypass channels.
  • a bypass channel on a filter can also be referred to as leakage of the filter.
  • Such bypass channels through which dust-laden air can flow, can reduce the effectiveness of a filter, and can advantageously be avoided by using a filter device according to the invention, for example in a motor protection filter.
  • the connection of the filter medium to the support structure the use of different filter media can be advantageously enabled. Another advantage may be that the filter medium does not need to be stiffened because it can be held by the support structure.
  • the filter device can provide an enlarged area to be flowed through as the inlet or outlet surface of the suction air flow itself.
  • the air flowed through the filter surface can be increased advantageously with unchanged connection geometry.
  • the air flow flows through the filter medium in different spatial directions.
  • the main filter surface is the filter surface, which is flowed through in the main direction of the air flow. All other filter surfaces through which air flows are called secondary filter surfaces.
  • the Saug souskonstanz can also be advantageously increased by the fact that, for example, the surfaces of a vacuum cleaner bag can not create the secondary filter surfaces.
  • the filter medium is made of a sheet material.
  • a plate-like filter medium is used.
  • a flat or plate-like filter medium is understood to mean a filter medium which extends in two spatial directions, and in a third spatial direction only one has low expansion.
  • a belt-like, windable or rollable filter medium is used.
  • this can be used on commercially available, flat filter medium.
  • it is advantageously possible to easily switch to another filter medium without changing the filter production.
  • the filter medium has a rectangular blank.
  • this can be reduced impact edges. Since no blank waste occurs, a material-saving production can advantageously be made possible. Furthermore, it can be advantageously prevented that bypass channels arise at the abutting edges, binding or transition points.
  • the filter medium is attached at least to a base frame of the support structure.
  • the filter medium has a round or elliptical blank, or the blank of the filter medium corresponds to a settlement of a truncated cone.
  • the filter medium has at least one cut.
  • an incision is any, linear interruption of the filter medium to understand in which advantageously no blank waste.
  • all one-dimensional curves so for example also arcs to classify.
  • an incision can also be understood to mean a slot having two ends, which are both located in the filter medium.
  • An incision which can not be called a slit, for example, leads from the side of the material into the material, and thus has only one end which is located in the filter medium.
  • cuts may be made at the locations of the largest deformation filter medium to help reduce wrinkling, for example, in the connection of the filter medium to the support structure.
  • the filter medium has at least one recess.
  • Under recess is a material removal, for example, at the corners of a rectangular blank of the filter medium to understand.
  • this can further reduce wrinkling.
  • a box-shaped support structure of the filter device with reduced or no wrinkling at the edges can thus be advantageously made possible.
  • the Amount of the resulting blank drop can be minimized advantageously by choosing a suitable geometry of the support structure.
  • the filter medium has at least one kink.
  • this can increase the size of the air-flow areas.
  • a complete covering of the filter surfaces through the filter bag can be avoided, whereby pressure losses on the vacuum cleaner filter can be reduced, and an improvement in Saugadoskonstanz can be achieved.
  • the filter surfaces formed by the filter medium preferably define a pyramid-stump-like or a cuboid-shaped space.
  • an opening for example an intake opening of the vacuum cleaner motor or an outlet opening of the vacuum cleaner
  • the filter surface through which the air flows can advantageously be further increased with a low material input of the filter medium.
  • the filter device can take up a small volume with a truncated pyramid-shaped or cuboidal space and can thus be installed in a space-saving manner in the vacuum cleaner without substantially reducing, for example, the volume of the dust-collecting unit in the dust chamber.
  • the filter surfaces formed by the filter medium define a space having the shape of a cylinder, a truncated cone or a hemisphere.
  • the main filter surface may be larger than, for example, the suction opening, whereby the filter surface through which the air flows can advantageously be further maximized.
  • the space defined by the filter surfaces in this case would correspond to a truncated pyramid inverted with respect to the previous embodiments.
  • the filter surface formed by the filter surfaces take the form of a wedge, whereby containers from the dust chamber can be removed more easily.
  • the support structure has at least one edge to which the filter medium can be attached.
  • a filter medium is used, which has a rectangular cross-section, and which can be fixed to the edges of the support structure.
  • the filter medium is attached at least to a base frame of the support structure. Since wrinkling may occur in the filter medium, especially at the edges of the support structure, the edges of the support structure are designed to be wide enough to accommodate the folds of the filter medium and to reliably secure the filter medium to the support structure.
  • the width of the edge is three to five times a minimum for a particular fastening method width.
  • the filter medium is first applied to a tool, which may have the negative shape of the support structure, to be subsequently inserted by the tool in the support structure and connected to the support structure.
  • the application of the filter medium to the tool can particularly preferably take place by means of a slide or by blowing by means of a nozzle.
  • the filter medium may randomly assume the shape of the support structure during insertion into the support structure.
  • the support structure has rungs and windows.
  • the support structure has a grid structure.
  • the support structure is an injection molded part.
  • the rungs can be used to stabilize the support structure and to secure the filter medium.
  • the windows are used advantageously for air flow.
  • the filter medium is injection-molded onto the carrier structure using an injection-molding tool.
  • filter medium and carrier structure thereby form a unit, and are connected to one another in a captive, reliable or mechanically loadable manner.
  • the creases or folds created during insertion of the filter medium can be fused to the support structure in such a way that the filter medium can form a unit without kinks or folds with the support structure.
  • This can be the carrier structure at least one Edge has to represent a particular advantage, since it can increasingly cause wrinkles on edges.
  • bypass channels can thus be avoided.
  • the connection between the filter medium and support structure is made punctiform or linear.
  • the filter medium when it is sprayed on, it is at least partially fastened to the carrier structure.
  • the filter medium is attached at least to a base frame of the support structure.
  • the filter medium and support structure are connected to each other by welding, for example by ultrasonic welding, or by gluing.
  • a hem-shaped attachment can connect the filter medium to the support structure.
  • the filter surfaces formed by the filter medium define a space containing a filler material.
  • the additional packaging space may advantageously include filter media having alternative properties such as a HEPA filter for filtering small particles, an activated carbon filter for odor binding, moisture absorbing material such as silica gel, or odoriferous substances such as silica gel. Coffee, lemon or pine scent included.
  • the support structure has spacers.
  • a dust bag can create the entire surface of the relevant, through which the air flows through the filter surface. It can be achieved even with bulging dust bag, an advantageous flow behind the dust bag, whereby a largely unhindered suction air flow and thus a high Saug soskonstanz can be achieved.
  • the filter device is exchangeable.
  • a filter device used as a motor protection filter which may be located between Staubabscheide Rhein and suction of the vacuum cleaner, or as exhaust air filter, which may be located behind the blower and motor on the vacuum cleaner housing, filter means interchangeable.
  • the clogged filter can be easily replaced by the user with a new filter.
  • the filter means comprises means for fixing to the vacuum cleaner.
  • the filter element may have resilient retaining ribs, snap hooks or rails with play compensating spring elements for a sealing contact.
  • the filter device may have an additional sealing element, such as a rubber seal.
  • the present invention facilitates the provision of a filter device with simple structural and cost-effective means, which provides an enlarged filter surface to be flowed through as an entry or exit surface of the suction air flow itself when there is an inlet or outlet surface of a suction air flow. Furthermore, flat or plate-like filter medium can be used while largely avoiding blank waste. Likewise, additional space is provided for other filter media with alternative properties.
  • the filter device according to the invention is suitable as a pre-filter, intermediate filter or after-filter.
  • a vacuum cleaner 2 is shown with a filter device 1, which has a filter medium 4 and a support structure 5, wherein the filter medium 4 is connected to the support structure 5.
  • the filter device 1 is used as a motor protection filter, and is mounted interchangeably in front of the intake opening 19 of the vacuum cleaner motor, not shown.
  • the filter device 1 is a Staubabscheideiki, not shown, in the dust chamber 3 can be arranged, downstream, and can protect the engine from particles in the intake air in the absence of Staubabscheide arthritis.
  • the filter device 1 completely seals the intake opening 19, as a result of which all the air taken in by the vacuum cleaner motor has to pass through the filter medium 4 and is thus freed of particles.
  • the filter device 1 is exchangeable, so that with dirty filter medium 4, the user can remove the entire filter device 1 and replace it with a new one.
  • Fig. 2 shows the support structure 5 of the filter device 1 after Fig. 1 ,
  • the support structure 5 has four edges 13 to which the filter medium 4 can be attached.
  • the support structure 5 has rungs 14, which represent a further attachment possibilities for the filter medium 4, and form a grid-like structure.
  • the windows 15 of the support structure 5, which are formed by rungs 14, edges 13 and the base frame 20 of the support structure 5, are used for air flow.
  • the spacers 17 are to avoid that a dust bag over the entire surface of the air flow through the filter surfaces 10, 11, 12 can create.
  • the spacers 17 can cause even with a filled dust bag, a back flow of the dust bag can be achieved.
  • Fig. 3 shows the support structure 5 after Fig. 2 from a bottom view. Particularly evident in this view are the edges 13 of the support structure, on which the filter medium 4 can be attached. Due to the rectangular cut of the filter medium 4, wrinkles of the filter medium 4 occur, particularly at the edges 13 of the carrier structure 5. The edges 13 are designed such that they can accommodate folds of the filter medium 4 and the filter medium 4 can be reliably attached to them can.
  • Fig. 4 shows the support structure 5 after Fig. 3 which is connected to a filter medium 4.
  • Fig. 6 shows detail B Fig. 5 ,
  • the filter medium 4 made of a sheet material was injection-molded onto the support structure 5 with an injection molding tool and has a rectangular blank.
  • the resulting when inserting the filter medium 4 in the support structure 5 kinks or wrinkles are merged with the support structure, that is a uniform material represents. This is especially important at the edges 13, as edges can increasingly cause wrinkles.
  • bypass ducts can be avoided, can pass through the dust-laden air into the engine compartment.
  • the filter medium 4 connected to the support structure 5 forms five filter surfaces 10, 11, 12, a main filter surface 10, two long secondary filter surfaces 11 and two short secondary filter surfaces 12, which can be traversed by suction air.
  • the filter surfaces 10, 11, 12 formed by the filter medium define a truncated pyramidal space.
  • the filter medium 4 By fixing the filter medium 4 made of a sheet material to the support structure 5, the filter medium 4 kinks 9, for example, at transition points between the filter surfaces 10, 11, 12.
  • the five filter surfaces 10, 11, 12 are each characterized by a vertical surface 6. For purposes of illustration, the surface perpendiculars 6, which are infinitely long straight lines, have been replaced by short distances.
  • Fig. 7 is a cut according to Fig. 5 shown.
  • the space defined by the filter surfaces 10, 11, 12 contains a filler material 16, which in the previous 4 to 6 was not shown for purposes of illustration.
  • This additional material 16 is made of a moisture-absorbing material to protect the engine from moisture while sucking a damp soil.
  • the filter medium 4 has a recess 8 and an incision 7.
  • the recess 8 or the recess 7 can reduce or even avoid wrinkling, and are made in places of the filter medium 4 with the largest deformation. In the case of a truncated pyramid-like geometry this applies in particular to the corners of the Filter media 4.
  • the in Fig. 8 shown filter medium 4 has a recess 8 and a recess 7, and is not yet connected to the support structure 5.
  • Fig. 9 shows a third embodiment of the filter device 1, which otherwise does not differ from the first and second embodiments.
  • the support structure 5 is wedge-shaped and provided with rungs 14 and windows 15.
  • the flat filter medium 4 is integrally connected to the support structure 5. To avoid double layers at the edges 13 of the wedge, the filter medium 4 is provided with not shown recesses 8.
  • the cavity in the wedge-shaped filter device 1 may be filled with a filler material 16, not shown.
  • the present invention facilitates the provision of a filter device with simple structural and cost-effective means, which provides an enlarged filter surface to be flowed through as an entry or exit surface of the suction air flow itself when there is an inlet or outlet surface of a suction air flow. Furthermore, flat or plate-like filter medium can be used while largely avoiding blank waste. Likewise, additional space is provided for other filter media with alternative properties.
  • the filter device according to the invention is suitable as a pre-filter, intermediate filter or after-filter.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP10153968.2A 2009-03-23 2010-02-18 Dispositif de filtre pour un aspirateur Active EP2233053B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009001754A DE102009001754A1 (de) 2009-03-23 2009-03-23 Filtereinrichtung für einen Staubsauger

Publications (3)

Publication Number Publication Date
EP2233053A2 true EP2233053A2 (fr) 2010-09-29
EP2233053A3 EP2233053A3 (fr) 2014-11-05
EP2233053B1 EP2233053B1 (fr) 2021-09-29

Family

ID=42335285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10153968.2A Active EP2233053B1 (fr) 2009-03-23 2010-02-18 Dispositif de filtre pour un aspirateur

Country Status (2)

Country Link
EP (1) EP2233053B1 (fr)
DE (1) DE102009001754A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011083436B4 (de) * 2011-09-26 2020-07-09 BSH Hausgeräte GmbH Rahmen für einen Staubraumfilter eines Staubsaugers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317715C1 (de) 1993-05-27 1994-06-09 Siemens Ag Filterkassette für einen Staubsauger
DE102006009257B3 (de) 2006-02-28 2007-07-26 BSH Bosch und Siemens Hausgeräte GmbH Filter für einen Staubsauger

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6558453B2 (en) * 2000-01-14 2003-05-06 White Consolidated Industries, Inc. Bagless dustcup
US7247182B2 (en) * 2002-05-08 2007-07-24 The Hoover Company Filter assembly for a vacuum cleaner
US7752707B2 (en) * 2006-06-15 2010-07-13 Panasonic Corporation Of North America Bag cage having bag candy

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317715C1 (de) 1993-05-27 1994-06-09 Siemens Ag Filterkassette für einen Staubsauger
DE102006009257B3 (de) 2006-02-28 2007-07-26 BSH Bosch und Siemens Hausgeräte GmbH Filter für einen Staubsauger

Also Published As

Publication number Publication date
DE102009001754A1 (de) 2010-10-07
EP2233053A3 (fr) 2014-11-05
EP2233053B1 (fr) 2021-09-29

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