EP0636337A1 - Vacuum cleaner filter - Google Patents

Vacuum cleaner filter Download PDF

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Publication number
EP0636337A1
EP0636337A1 EP94109447A EP94109447A EP0636337A1 EP 0636337 A1 EP0636337 A1 EP 0636337A1 EP 94109447 A EP94109447 A EP 94109447A EP 94109447 A EP94109447 A EP 94109447A EP 0636337 A1 EP0636337 A1 EP 0636337A1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
frame
cleaner according
filter element
filter
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
EP94109447A
Other languages
German (de)
French (fr)
Other versions
EP0636337B1 (en
Inventor
Wolfgang Dipl.-Ing. Schmidt
Gottfried Schneider
Gerhard Dipl.-Ing. Erdmann
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.)
AEG Hausgeraete GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
AEG 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 Licentia Patent Verwaltungs GmbH, AEG Hausgeraete GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0636337A1 publication Critical patent/EP0636337A1/en
Application granted granted Critical
Publication of EP0636337B1 publication Critical patent/EP0636337B1/en
Anticipated expiration legal-status Critical
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    • 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
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping

Definitions

  • the invention relates to a vacuum cleaner according to the preamble of the first claim.
  • a motor blower downstream of a dust collector chamber in a chamber which has a throughflow opening for outflowing air freed from usual dust particles.
  • the throughflow opening On its side facing away from the engine blower chamber, the throughflow opening has a circumferential sealing surface, against which the edge of a disk filter is tightly applied.
  • This is ensured by support webs on a cover which is pivotally mounted on the contour of the vacuum cleaner device housing and in which the blown air, which is then freed of even the finest particles, is conducted into an elongated outflow channel provided on the bottom of the device housing.
  • the outer peripheral edge of the filter element is thus clamped between the support webs of the cover and the sealing surface of the flow opening.
  • the flat multi-layer filter disc used for this has an unsatisfactory filter result. There is also the risk that when inserting not all edge parts come into tight contact with the associated sealing surface, so that parts of the air conveyed by the motor fan can pass this filter element.
  • the invention has for its object to take measures in a vacuum cleaner according to the preamble of the first claim, by means of which a secure connection of the sealing element to the throughflow opening is achieved and which permit the use of a highly effective filter element.
  • the filter element is enclosed by a dimensionally stable frame which can be brought securely into the conveyed sealing position with respect to the throughflow opening by mechanical centering on a cover.
  • the inherently unstable filter element is firmly connected to this frame, so that overall a reliable covering of the through-flow opening, through which the pre-cleaned air conveyed by the motor fan flows, is ensured.
  • the filter element can consist, in particular, of a filter disc which is closely shaped like an accordion, that is to say folded in a zigzag, so that a filter surface which is substantially larger in relation to the surface enclosed by the frame is available.
  • the folded edges are alternately in or against the direction of flow of the conveyed air, so that they have the necessary rigidity against the pressure generated by the air flow. Due to the tight grip of the frame around this pleated filter element, a tight seal is achieved, in particular on the open end edges of the individual folds, which can still be secured in that the open end edges are glued tightly to the respectively adjacent wall sections of the frame by means of a curing adhesive.
  • the adhesive can be applied before inserting the filter element into the frame.
  • a viscoelastic hardening adhesive is poured into the groove formed in this way, which improves the seal and in particular forms a mechanically stable hold between the filter element and the frame.
  • This sealing element is in particular attached to the side from which the air flows.
  • radially inwardly directed edge strips are expedient, which engage under the folded edges pointing in the direction of flow and thus serve to mechanically support the filter element against the air flow pressure.
  • the frame also preferably has a radially circumferential annular flange which is provided on the side next to the sealing element and can carry a sealing ring, so that the filter as a whole is to be applied tightly to the throughflow opening.
  • the frame On its side facing away from the throughflow opening on supporting webs which are provided on a cover which is pivotably hinged to the device housing.
  • the arrangement is such that, when the cover is closed, the filter is in tight contact with the flow opening. Between the supporting webs, the very fine airborne particles, which pass through the filter, can then flow into a blow-out duct, which is provided on the bottom of the device housing and is designed to dampen noise.
  • a device housing 1 of a vacuum cleaner which is only partially indicated, there is a large-volume filter bag 2 designed for filtering the dust-laden sucked-in air in a dust collector room 3, to which a blower chamber 4 for receiving a motor blower 5 is connected.
  • the largely cleaned air conveyed by the motor fan 5 relaxes in the blower chamber 4 and flows out of it downwards in the direction of a bottom wall 6 of the device housing through a throughflow opening 7.
  • the flow opening 7 are arranged in the blower chamber 4 air guide ribs 8, which are inclined so that access to the engine blower 5 is prevented according to the regulations.
  • the throughflow opening 7 is followed by an air-permeable filter, which surrounds a filter disc folded in an accordion-shaped or zigzag-shaped manner as a filter element in a frame 9 all around and closely fitting.
  • the frame 9 has an axial length in the direction of flow, which is adapted to the height of the individual folds of the filter element.
  • the end edges 11 of the individual folds come into tight contact on opposite wall sections 12 of the frame 9 by appropriate length dimensioning of the filter element 10.
  • the folded edges 13 of the filter element point alternately in or against the direction of flow of the conveyed air and, in the case of a rectangular design of the frame, extend parallel to the short wall sections of the frame 9.
  • the frame points in the region of the against the direction of flow directional folded edges 13.1 has a groove 14 which is open to the throughflow opening 7 and to the adjacent sections of the end edges 11 in the region of the folded edges 13.1.
  • an adhesive is poured into the viscous state as an additional sealing element 15, which hardens in a viscoplastic manner and brings about the firm connection between the frame 9 and the filter element 10.
  • the groove 14 with the adhesive 15 arranged therein points against the direction of air flow.
  • the adhesive 15 closes the free passage of air from the groove 14 into the folds which are open at the bottom.
  • the front edges 11 and / or the wall sections 12 can be provided with the adhesive before the filter element 10 is inserted, which is also applied in a viscous state and then hardens in a viscoplastic manner.
  • the frame 9 has, on its side facing away from the throughflow opening 7, radially inwardly directed edge strips 16 which engage behind the folded edges 13.2 pointing in the direction of flow. The filter 10 is thereby additionally supported against the flow pressure.
  • the edge strips 16 determine the insertion depth of the filter element 10 at the same time.
  • the length of the end edges 11 is dimensioned such that the completely inserted filter element 10 does not protrude beyond the groove 14.
  • the groove 14 with the adhesive 15 extends all around the filter element 10, so that the two opposite end fold sections 13.3 are tightly connected to the frame 9 via their length running parallel to the fold edges 13.
  • the filter 9, 10 is arranged with a radial circumferential arrangement on the frame 9, laterally next to the sealing element 15 Provided ring flange 17 which carries a sealing ring 18 in an appropriately adapted groove as the outer peripheral edge.
  • This sealing ring 18 is in tight contact with the sealing surface 19 surrounding the throughflow opening 7.
  • a counter bearing is a cover 21 which is molded into the outer contour of the housing and forms a transition between the base 6 and a rear wall 20 of the device housing and which is pivotable at the transition to the base 6 on the device housing is held and which is releasably locked in the illustrated working position at the transition to the rear wall 20 by means of a locking button 23.
  • the frame 9 ends at a distance from the cover 21 and, in conjunction with the support webs 23, forms at least one flow channel which forms an elongated blow-out channel 24 in the region of the base 6 for the air conveyed by the motor fan 5 and thus contributes to noise insulation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

In the case of a vacuum cleaner, there is arranged in an appliance housing (1) a filter (9, 10) which is to be applied by its outer peripheral edge (17) in a sealed manner against an adapted sealing surface (19) surrounding a flow-through opening (7). In order to achieve reliable, effective filtering of the air conveyed by a motor blower (5) into a blowing-out channel (24), the filter comprises a filter element (10) which is enclosed by a peripherally close-fitting frame (9) and is connected thereto in a sealed manner by means of an additional sealing element (15). <IMAGE>

Description

Die Erfindung betrifft einen Staubsauger gemäß dem Oberbegriff des ersten Anspruchs.The invention relates to a vacuum cleaner according to the preamble of the first claim.

Bei einem bekannten Staubsauger dieser Art (DE 38 15 321 A1) befindet sich ein strömungsmäßig einen Staubsammlerraum nachgeschaltetes Motorgebläse in einer Kammer, die eine Durchströmöffnung für von üblichen Staubpartikeln befreite abströmende Luft aufweist. Die Durchstromöffnung weist an ihrer der Motorgebläsekammer abgewandten Seite eine umlaufende Dichtfläche auf, an welche der Rand eines Scheibenfilters dicht angelegt ist. Hierfür sorgen Stützstege an einem in die Kontur des Staubsauger-Gerätegehäuses integrierten, schwenkbar daran gelagerten Deckel, in dem die dann auch von feinsten Partikeln befreite Gebläseluft in einen am Boden des Gerätegehäuses vorgesehenen langgestreckten Ausströmkanal geleitet wird. Der Außenumfangsrand des Filterelements ist so zwischen die Stützstege des Deckels und die Dichtfläche der Durchströmöffnung eingeklemmt. Die hierfür verwendete plane mehrlagige Filterscheibe weist ein noch nicht zufriedenstellendes Filterergebnis auf. Zudem besteht die Gefahr, daß beim Einlegen nicht alle Randpartien in dichte Anlage mit der zugehörigen Dichtfläche gelangen, so daß Teile der vom Motorgebläse geförderten Luft an diesem Filterelement vorbeistreichen können.In a known vacuum cleaner of this type (DE 38 15 321 A1) there is a motor blower downstream of a dust collector chamber in a chamber which has a throughflow opening for outflowing air freed from usual dust particles. On its side facing away from the engine blower chamber, the throughflow opening has a circumferential sealing surface, against which the edge of a disk filter is tightly applied. This is ensured by support webs on a cover which is pivotally mounted on the contour of the vacuum cleaner device housing and in which the blown air, which is then freed of even the finest particles, is conducted into an elongated outflow channel provided on the bottom of the device housing. The outer peripheral edge of the filter element is thus clamped between the support webs of the cover and the sealing surface of the flow opening. The flat multi-layer filter disc used for this has an unsatisfactory filter result. There is also the risk that when inserting not all edge parts come into tight contact with the associated sealing surface, so that parts of the air conveyed by the motor fan can pass this filter element.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Staubsauger gemäß dem Oberbegriff des ersten Anspruchs Maßnahmen zu treffen, durch die ein sicherer Anschluß des Dichtelements an die Durchstromöffnung erreicht wird und welche die Anwendung eines hochwirksamen Filterelements zulassen.The invention has for its object to take measures in a vacuum cleaner according to the preamble of the first claim, by means of which a secure connection of the sealing element to the throughflow opening is achieved and which permit the use of a highly effective filter element.

Die Lösung dieser Aufgabe erfolgt gemäß der Erfindung durch die kennzeichnenden Merkmale des ersten Anspruchs.This object is achieved according to the invention by the characterizing features of the first claim.

Bei einer Ausgestaltung eines Staubsaugers gemäß der Erfindung ist das Filterelement von einem formstabilen Rahmen umschlossen, der durch mechanische Zentrierung an einen Deckel sicher in die geförderte Dichtposition gegenüber der Durchströmöffnung zu bringen ist. Das in sich formunstabile Filterelement ist fest mit diesem Rahmen verbunden, so daß insgesamt eine zuverlässige Abdeckung der Durchströmöffnung, durch die vom Motorgebläse geförderte vorgereinigte Luft ausströmt, sichergestellt ist. Das Filterelement kann dabei insbesondere aus einer eng zieharmonikaförmig, also zick-zack gefalteten Filterscheibe bestehen, so daß eine in Bezug auf die vom Rahmen umschlossene Fläche wesentlich größere Filterfläche zur Verfügung steht. Dabei stehen die Faltkanten wechselweise in bzw. gegen die Strömungsrichtung der geförderten Luft, so daß sie gegen den vom Luftstrom erzeugten Druck die notwendige Steifigkeit besitzen. Durch den engen Umgriff des Rahmens um dieses gefaltete Filterelement wird insbesondere an den offenen Stirnkanten der einzelnen Falten ein dichter Abschluß erreicht, der noch dadurch gesichert werden kann, daß die offenen Stirnkanten mittels eines aushärtenden Klebstoffs an die jeweils benachbarten Wandabschnitte des Rahmens dicht angeklebt werden. Der Kleberauftrag kann dabei vor dem Einsetzen des Filterelements in den Rahmen vorgenommen werden. Zur sicheren Halterung und Abdichtung ist es auch zweckmäßig, für die Anbringung des Dichtelements im Rahmen eine Nut vorzusehen, die sowohl parallel zur Strömungsrichtung der das Filterelement durchströmenden Luft als auch im Bereich der benachbarten Faltkanten offen ist. In die so gebildete Nut wird in zähflüssigem Zustand ein zähelastisch aushärtender Klebstoff eingegossen, der die Abdichtung verbessert und insbesondere einen mechanisch stabilen Halt zwischen dem Filterelement und dem Rahmen bildet. Dieses Dichtelement ist insbesondere auf der Seite angebracht, von der die Luft zuströmt. Auf der gegenüberliegenden Seite des Rahmens sind dagegen radial nach innen gerichtete Randstreifen zweckmäßig, welche die in Strömungsrichtung weisende Faltkanten untergreifen und so zur mechanischen Abstützung des Filterelements gegen den Luftströmungsdruck dienen. Der Rahmen weist zudem vorzugsweise einen seitlich neben dem Dichtelement vorgesehenen, radial umlaufenden Ringflansch auf, der einen Dichtring tragen kann, so daß der Filter insgesamt dicht an die Durchströmöffnung anzulegen ist. Hierfür ist es zweckmäßig, den Rahmen an seiner der Durchstömöffnung abgewandten Seite auf Stützstegen zentriert aufzulagern, die an einem schwenkbar am Gerätegehäuse angelenkten Deckel vorgesehen sind. Die Anordnung ist dabei so getroffen, daß bei geschlossenem Deckel die dichte Anlage des Filters an der Durchströmöffnung sichergestellt ist. Zwischen den Stützstegen kann dann die den Filter durchsetzende von sehr feinen Schwebeteilchen gereinigte Luft in einen am Boden des Gerätegehäuses vorgesehenen, zur Geräuschdämpfung lang ausgebildeten Ausblaskanal strömen.In one embodiment of a vacuum cleaner according to the invention, the filter element is enclosed by a dimensionally stable frame which can be brought securely into the conveyed sealing position with respect to the throughflow opening by mechanical centering on a cover. The inherently unstable filter element is firmly connected to this frame, so that overall a reliable covering of the through-flow opening, through which the pre-cleaned air conveyed by the motor fan flows, is ensured. The filter element can consist, in particular, of a filter disc which is closely shaped like an accordion, that is to say folded in a zigzag, so that a filter surface which is substantially larger in relation to the surface enclosed by the frame is available. The folded edges are alternately in or against the direction of flow of the conveyed air, so that they have the necessary rigidity against the pressure generated by the air flow. Due to the tight grip of the frame around this pleated filter element, a tight seal is achieved, in particular on the open end edges of the individual folds, which can still be secured in that the open end edges are glued tightly to the respectively adjacent wall sections of the frame by means of a curing adhesive. The adhesive can be applied before inserting the filter element into the frame. For secure mounting and sealing, it is also advisable for the attachment of the sealing element in the frame to provide a groove that is open both parallel to the direction of flow of the air flowing through the filter element and in the area of the adjacent folded edges. In the viscous state, a viscoelastic hardening adhesive is poured into the groove formed in this way, which improves the seal and in particular forms a mechanically stable hold between the filter element and the frame. This sealing element is in particular attached to the side from which the air flows. On the opposite side of the frame, on the other hand, radially inwardly directed edge strips are expedient, which engage under the folded edges pointing in the direction of flow and thus serve to mechanically support the filter element against the air flow pressure. The frame also preferably has a radially circumferential annular flange which is provided on the side next to the sealing element and can carry a sealing ring, so that the filter as a whole is to be applied tightly to the throughflow opening. For this purpose, it is expedient to center the frame on its side facing away from the throughflow opening on supporting webs which are provided on a cover which is pivotably hinged to the device housing. The arrangement is such that, when the cover is closed, the filter is in tight contact with the flow opening. Between the supporting webs, the very fine airborne particles, which pass through the filter, can then flow into a blow-out duct, which is provided on the bottom of the device housing and is designed to dampen noise.

Die Erfindung ist nachfolgend anhand der Prinzipskizzen eines teilweise dargestellten Staubsaugers näher erläutert.The invention is explained in more detail below on the basis of the schematic diagrams of a partially illustrated vacuum cleaner.

Es zeigen:

  • Fig. 1 eine Teilansicht eines Staubsaugers im Bereich des Luftabströmweges von einem Motorgebläse mit einem nachgeschalteten Filter und
  • Fig. 2 eine Draufsicht auf den Filter in Luftströmungsrichtung.
Show it:
  • Fig. 1 is a partial view of a vacuum cleaner in the area of the air discharge path from an engine blower with a downstream filter and
  • Fig. 2 is a plan view of the filter in the air flow direction.

In einem nur teilweise angedeuteten Gerätegehäuse 1 eines Staubsaugers befindet sich ein für die Filterung der staubbeladenen angesaugten Luft ausgebildeter großvolumiger Filterbeutel 2 in einem Staubsammlerraum 3, an den sich eine Gebläsekammer 4 für die Aufnahme eines Motorgebläses 5 anschließt. Die vom Motorgebläse 5 geförderte und weitgehend gereinigte Luft entspannt sich in der Gebläsekammer 4 und strömt daraus nach unten in Richtung auf eine Bodenwand 6 des Gerätegehäuses durch eine Durchströmöffnung 7 aus. Der Durchströmöffnung 7 sind in der Gebläsekammer 4 Luftleitrippen 8 vorgeordnet, die derart schräg gestellt sind, daß ein Zugriff zum Motorgebläse 5 den Vorschriften entpsrechend unterbunden ist. Der Durchströmöffnung 7 ist ein luftdurchlässiger Filter nachgeordnet, der in einem Rahmen 9 eine ziehharmonikaförmig bzw. zick-zack-förmig gefaltete Filterscheibe als Filterelement umlaufend und eng anliegend umschließt. Der Rahmen 9 weist in Strömungsrichtung eine axiale Länge auf, die der Höhe der einzelnen Falten des Filterelements angepaßt ist. Dadurch kommen die Stirnkanten 11 der einzelnen Falten an gegenüberliegenden Wandabschnitten 12 des Rahmens 9 durch entsprechende Längenbemessung des Filterelements 10 in dichte Anlage. Die Faltkanten 13 des Filterelements weisen wechselweise in bzw. gegen die Strömungsrichtung der geförderten Luft und erstrecken sich bei rechteckiger Ausbildung des Rahmens parallel zu den kurzen Wandabschnitten des Rahmens 9. Zur mechanischen Halterung und zusätzlichen Abdichtung weist der Rahmen im Bereich der gegen die Strömungsrichtung gerichteten Faltkanten 13.1 eine Nut 14 auf, die zur Durchströmöffnung 7 und zu den benachbarten Abschnitten der Stirnkanten 11 im Bereich der Faltkanten 13.1 offen ist. In die so gebildete Nut 14 ist als zusätzliches Dichtungselement 15 in zähflüssigem Zustand ein Klebstoff eingegossen, der zähelastisch aushärtet und die feste Verbindung zwischen dem Rahmen 9 und dem Filterelement 10 bewirkt. Die Nut 14 mit dem darin angeordneten Klebstoff 15 weist gegen die Luftströmungsrichtung. Dabei verschließt der Klebstoff 15 den freien Luftdurchtritt von der Nut 14 aus in die nach unten offenen Falten. Um auch die übrigen Abschnitte der Stirnkanten 11 zuverlässig und dicht mit der jeweils benachbarten Wandung 12 des Rahmens 9 zu verbinden, sind sie mittels Klebstoff an den Wandungen 12 festgesetzt. Hierzu können die Stirnkanten 11 und/oder die Wandabschnitte 12 vor dem Einsetzen des Filterelements 10 mit dem Klebstoff versehen sein, der ebenfalls in zähflüssigem Zustand aufgebracht wird und danach zähelastisch aushärtet. Zur zusätzlichen Abstützung des Filters 9,10 weist der Rahmen 9 an seiner der Durchströmöffnung 7 abgewandten Seite radial nach innen gerichtete Randstreifen 16 auf, welche die in Strömungsrichtung weisenden Faltkanten 13.2 hintergreifen. Der Filter 10 ist dadurch zusätzlich gegen den Strömungsdruck abgestützt. Die Randstreifen 16 bestimmen dabei gleichzeitig die Einschubtiefe des Filterelements 10. Die Länge der Stirnkanten 11 ist so bemessen, daß das vollständig eingesetzte Filterelement 10 die Nut 14 nicht überragt. Die Nut 14 mit dem Klebstoff 15 erstreckt sich rundum um das Filterelement 10, so daß auch die beiden gegenüberliegenden Endfaltenabschnitte 13.3 über ihre parallel zu den Faltkanten 13 verlaufende Länge mit dem Rahmen 9 dicht verbunden sind.In a device housing 1 of a vacuum cleaner, which is only partially indicated, there is a large-volume filter bag 2 designed for filtering the dust-laden sucked-in air in a dust collector room 3, to which a blower chamber 4 for receiving a motor blower 5 is connected. The largely cleaned air conveyed by the motor fan 5 relaxes in the blower chamber 4 and flows out of it downwards in the direction of a bottom wall 6 of the device housing through a throughflow opening 7. The flow opening 7 are arranged in the blower chamber 4 air guide ribs 8, which are inclined so that access to the engine blower 5 is prevented according to the regulations. The throughflow opening 7 is followed by an air-permeable filter, which surrounds a filter disc folded in an accordion-shaped or zigzag-shaped manner as a filter element in a frame 9 all around and closely fitting. The frame 9 has an axial length in the direction of flow, which is adapted to the height of the individual folds of the filter element. As a result, the end edges 11 of the individual folds come into tight contact on opposite wall sections 12 of the frame 9 by appropriate length dimensioning of the filter element 10. The folded edges 13 of the filter element point alternately in or against the direction of flow of the conveyed air and, in the case of a rectangular design of the frame, extend parallel to the short wall sections of the frame 9. For mechanical mounting and additional sealing, the frame points in the region of the against the direction of flow directional folded edges 13.1 has a groove 14 which is open to the throughflow opening 7 and to the adjacent sections of the end edges 11 in the region of the folded edges 13.1. In the groove 14 formed in this way, an adhesive is poured into the viscous state as an additional sealing element 15, which hardens in a viscoplastic manner and brings about the firm connection between the frame 9 and the filter element 10. The groove 14 with the adhesive 15 arranged therein points against the direction of air flow. The adhesive 15 closes the free passage of air from the groove 14 into the folds which are open at the bottom. In order to also reliably and tightly connect the remaining sections of the front edges 11 to the respectively adjacent wall 12 of the frame 9, they are fixed to the walls 12 by means of adhesive. For this purpose, the front edges 11 and / or the wall sections 12 can be provided with the adhesive before the filter element 10 is inserted, which is also applied in a viscous state and then hardens in a viscoplastic manner. For additional support of the filter 9, 10, the frame 9 has, on its side facing away from the throughflow opening 7, radially inwardly directed edge strips 16 which engage behind the folded edges 13.2 pointing in the direction of flow. The filter 10 is thereby additionally supported against the flow pressure. The edge strips 16 determine the insertion depth of the filter element 10 at the same time. The length of the end edges 11 is dimensioned such that the completely inserted filter element 10 does not protrude beyond the groove 14. The groove 14 with the adhesive 15 extends all around the filter element 10, so that the two opposite end fold sections 13.3 are tightly connected to the frame 9 via their length running parallel to the fold edges 13.

Der Filter 9,10 ist mit einem an den Rahmen 9 seitlich neben dem Dichtelement 15 angeordneten, radial umlaufenden Ringflansch 17 versehen, der als Außenumfangsrand einen Dichtring 18 in einer entsprechend angepaßten Nut trägt. Dieser Dichtring 18 steht in dichter Anlage mit der die Durchströmöffnung 7 umgebenden Dichtfläche 19. Als Gegenlager dient ein in die Gehäuseaußenkontur eingeformter, einen Übergang zwischen dem Boden 6 und einer Rückwand 20 des Gerätegehäuses bildender Deckel 21, der schwenkbar am Übergang zum Boden 6 am Gerätegehäuse gehalten ist und der am Übergang zur Rückwand 20 mittels einer Verriegelungstaste 23 in seiner dargestellten Arbeitslage lösbar verriegelt ist. Am Deckel 21 befinden sich Stützstege 23 die den Ringflansch 17 untergreifen, zentrieren und denselben so gegen die Dichtfläche 19 drücken, daß die geforderte Dichtung zwischen der Durchströmöffnung 7 und dem Filter 9,10 gewährleistet ist. Der Rahmen 9 endet mit Abstand vom Deckel 21 und bildet in Verbindung mit den Stützstegen 23 wenigstens einen Strömungskanal, der einen im Bereich des Bodens 6 ausgebildeten langgestreckten Ausblaskanal 24 für die vom Motorgebläse 5 geförderte Luft bildet und so zur Geräuschdämmung beiträgt.The filter 9, 10 is arranged with a radial circumferential arrangement on the frame 9, laterally next to the sealing element 15 Provided ring flange 17 which carries a sealing ring 18 in an appropriately adapted groove as the outer peripheral edge. This sealing ring 18 is in tight contact with the sealing surface 19 surrounding the throughflow opening 7. A counter bearing is a cover 21 which is molded into the outer contour of the housing and forms a transition between the base 6 and a rear wall 20 of the device housing and which is pivotable at the transition to the base 6 on the device housing is held and which is releasably locked in the illustrated working position at the transition to the rear wall 20 by means of a locking button 23. On the cover 21 there are support webs 23 which reach under the ring flange 17, center and press it against the sealing surface 19 in such a way that the required seal between the throughflow opening 7 and the filter 9, 10 is ensured. The frame 9 ends at a distance from the cover 21 and, in conjunction with the support webs 23, forms at least one flow channel which forms an elongated blow-out channel 24 in the region of the base 6 for the air conveyed by the motor fan 5 and thus contributes to noise insulation.

Es ergibt sich somit bei einfachem Aufbau und leichter Handhabbarkeit die Möglichkeit zur Anwendung eines zur Ausfilterung feinster Schwebstoffteile geeigneten Filterelements mit sehr großer Oberfläche und damit geringem Strömungswiderstand, wobei durch den Rahmen und die Positionierung desselben auf den Stützstegen ein sicherer, dichter Umschluß der Durchströmöffnung 7 erreicht wird. Ein Versatz des Außenumfangrandes 17,18 gegenüber der Durchströmöffnung ist dadurch sicher vermieden, ebenso durch die Verklebung des Filterelements 10 mit dem Rahmen 9 andere Luftnebenströmungswege.This results in the possibility of using a filter element suitable for filtering out the finest particles of suspended matter with a very large surface area and thus low flow resistance with a simple structure and easy handling, the frame and the positioning of the same on the support webs achieving a secure, tight enclosure of the throughflow opening 7 becomes. An offset of the outer circumferential edge 17, 18 with respect to the throughflow opening is thereby reliably avoided, and also by gluing the filter element 10 to the frame 9 other air bypass flow paths.

Claims (10)

Staubsauger mit einem im Gerätegehäuse angeordneten Filter, der mit seinem Außenumfangsrand dicht an eine angepaßte, eine Durchströmöffnung für von einem Motorgebläse geförderte Luft umgebende Dichtfläche anzulegen ist und der im Bereich der Durchströmöffnung ein luftdurchlässiges Filterelement aufweist, dadurch gekennzeichnet, daß das Filterelement (10) von einem umlaufend eng anliegenden Rahmen (9) umschlossen ist, der den Außenumfangsrand (17,19) bildet und über ein zusätzliches Dichtelement (15) rundum dicht mit dem Filterelement (10) verbunden ist.Vacuum cleaner with a filter arranged in the device housing, the outer peripheral edge of which is to be placed close to an adapted sealing surface surrounding a throughflow opening for air conveyed by a motor fan and which has an air-permeable filter element in the region of the throughflow opening, characterized in that the filter element (10) from a circumferentially close-fitting frame (9) is enclosed, which forms the outer peripheral edge (17, 19) and is tightly connected to the filter element (10) all around via an additional sealing element (15). Staubsauger nach Anspruch 1, dadurch gekennzeichnet, daß das Filterelement (10) aus einer eng ziehharmonikaförmig gefalteten Filterscheibe besteht, deren Faltkanten (13) wechselweise in bzw. gegen die Strömungsrchtung der geförderten Luft gerichtet sind und daß das Dichtelement (15) zwischen den offenen Stirnkanten (11) der in einer Richtung weisenden Faltkanten (13) sowie entlang den beiden äußeren Faltkanten (13.3) und dem benachbarten Rahmenrand (14) angeordnet ist.Vacuum cleaner according to claim 1, characterized in that the filter element (10) consists of a filter disc folded in a concertina shape, the folded edges (13) of which are directed alternately in or against the direction of flow of the conveyed air, and in that the sealing element (15) between the open end edges (11) the one-way folding edges (13) and along the two outer folding edges (13.3) and the adjacent frame edge (14). Staubsauger nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Dichtelement (15) in einer auch zum Filterelement (10) hin offenen, dasselbe umschließenden Nut (14) des Rahmens (9) angeordnet ist.Vacuum cleaner according to claim 1 or 2, characterized in that the sealing element (15) is arranged in a groove (14) in the frame (9) which is also open towards the filter element (10) and surrounds the same. Staubsauger nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß das Dichtelement (15) aus einem zähflüssig in die Nut (14) eingebrachten, zähelastisch aushärtenden Klebstoff gebildet ist.Vacuum cleaner according to claim 1 or one of the following, characterized in that the sealing element (15) is formed from a viscous-elastic adhesive which is introduced into the groove (14) in a viscous manner. Staubsauger nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß das Dichtelement (15) im Bereich der gegen die Luftströmungsrichtung weisenden Faltkanten (13.1) angeordnet ist.Vacuum cleaner according to claim 1 or one of the following, characterized in that the sealing element (15) is arranged in the region of the folding edges (13.1) pointing against the air flow direction. Staubsauger nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß der Rahmen (9) seitlich neben dem Dichtelement (15) einen radial umlaufenden Ringflansch (17) als Außenumfangsrand aufweist, der einen Dichtring (18) trägt, welcher in dichte Anlage mit der Dichtfläche (19) der Durchströmöffnung (7) tritt.Vacuum cleaner according to claim 1 or one of the following, characterized in that the frame (9) laterally next to the sealing element (15) has a radially circumferential ring flange (17) as the outer peripheral edge which carries a sealing ring (18) which is in tight contact with the Sealing surface (19) of the flow opening (7) occurs. Staubsauger nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß der Rahmen (9) mit radial nach innen gerichteten Randstreifen (16) die in Strömungsrichtung weisenden Faltkanten (13.2) hintergreift.Vacuum cleaner according to claim 1 or one of the following, characterized in that the frame (9) with radially inwardly directed edge strips (16) engages behind the folded edges (13.2) pointing in the direction of flow. Staubsauger nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß der Rahmen (9) an seiner der Durchströmöffnung (7) abgewandten Seite zentriert auf Stützstegen (23) aufsitzt, die an einem schwenkbar am Gerätegehäuse (1) angelenkten Deckel (21) vorgesehen sind.Vacuum cleaner according to claim 1 or one of the subsequent claims, characterized in that the frame (9) is centered on its side facing away from the throughflow opening (7) on support webs (23) which are provided on a cover (21) which is pivotably articulated on the device housing (1) are. Staubsauger nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß die offenen Stirnkanten (11) der Falten des Filterelements (10) mit Klebstoff an die jeweils benachbarten Wandabschnitte (12) des Rahmens (9) dicht angeklebt sind.Vacuum cleaner according to claim 1 or one of the following, characterized in that the open end edges (11) of the folds of the filter element (10) are glued tightly to the respectively adjacent wall sections (12) of the frame (9) with adhesive. Staubsauger nach Anspruch 9, dadurch gekennzeichnet, daß die Stirnkanten (11) und/oder die Wandabschnitte (12) vor dem Einsetzen des Filterelements (10) in den Rahmen (9,12) mit Klebstoff versehen sind.Vacuum cleaner according to claim 9, characterized in that the end edges (11) and / or the wall sections (12) are provided with adhesive before the filter element (10) is inserted into the frame (9, 12).
EP94109447A 1993-07-27 1994-06-18 Vacuum cleaner filter Expired - Lifetime EP0636337B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4325110 1993-07-27
DE4325110A DE4325110A1 (en) 1993-07-27 1993-07-27 Vacuum cleaner with a filter

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EP0636337A1 true EP0636337A1 (en) 1995-02-01
EP0636337B1 EP0636337B1 (en) 1997-03-12

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EP94109447A Expired - Lifetime EP0636337B1 (en) 1993-07-27 1994-06-18 Vacuum cleaner filter

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DE (2) DE4325110A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790031A1 (en) * 1996-01-19 1997-08-20 AEG Hausgeräte GmbH Vacuum cleaner
EP0839492A2 (en) * 1996-10-31 1998-05-06 AEG Hausgeräte GmbH Floor cleaning device, in particular vacuum cleaner
WO2003068043A1 (en) * 2002-02-11 2003-08-21 Dyson Ltd A filter housing
WO2006024422A1 (en) * 2004-09-01 2006-03-09 Miele & Cie. Kg Vacuum cleaner provided with a fine dust filter in the outgoing air flow
EP1360921A3 (en) * 2002-05-08 2007-08-08 Vorwerk & Co. Interholding GmbH Fine filter situated in exhaust air stream of vacuum cleaner, and corresponding vacuum cleaner
WO2011080037A1 (en) * 2009-12-30 2011-07-07 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner comprising a hand protection element
EP2510853A1 (en) * 2011-04-12 2012-10-17 BSH Bosch und Siemens Hausgeräte GmbH Assembly for expelling a waste gas flow
WO2022000841A1 (en) * 2020-06-29 2022-01-06 天佑电器（苏州）有限公司 Vacuum cleaner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09206528A (en) * 1996-01-31 1997-08-12 Atom Medical Kk Filter mounting mechanism and incubator incorporated with the mechanism
DE19903734A1 (en) * 1999-01-30 2000-08-10 Aeg Hausgeraete Gmbh Apparatus for cleaning rooms, especially vacuum cleaner has part of legs of separate mesh in region of air outlet with flow surface offering very low flow resistance
USD626708S1 (en) 2008-03-11 2010-11-02 Royal Appliance Mfg. Co. Hand vacuum
BRPI0919686A2 (en) 2008-10-22 2021-04-20 Rosemount Inc Plug-and-play sensor/transmitter for process instrumentation
DE102012012349B4 (en) * 2012-06-22 2014-07-24 Mann + Hummel Gmbh Gas filter element, method for its production and air filter for an internal combustion engine
CN106422588B (en) * 2016-11-28 2018-11-16 常熟市飞奥压力容器制造有限公司 The cartridge filter nozzle sealing device of Horizontal type natural gas separator-filter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349540A (en) * 1962-01-19 1964-01-17 Electrolux Ab Dust extractor
GB1154052A (en) * 1965-10-21 1969-06-04 Gen Electric Improvements in Vacuum Cleaners.
WO1985002100A1 (en) * 1983-11-17 1985-05-23 Progress-Elektrogeräte Mauz & Pfeiffer Gmbh & Co. Vacuum cleaner filter
DE3815321A1 (en) * 1988-05-05 1989-11-16 Licentia Gmbh Vacuum cleaner
DE4240172A1 (en) * 1992-11-30 1994-06-01 Miele & Cie Vacuum cleaner with main and fine dust filters - has zigzag fine dust filter contg deodorising layer of active carbon underneath electrostatically charged granulate filter layer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2156857A (en) * 1936-08-03 1939-05-02 Progress Vacuum Corp Vacuum cleaner filter
DE1873866U (en) * 1963-04-10 1963-06-12 Concordia Elek Zitaets Ag GASKET FOR AIR FILTER MATS.
DE7338151U (en) * 1973-10-24 1975-04-30 Ceagfilter Und Entstaubungstechnik AIR FILTER PLATE
DE3517329A1 (en) * 1985-05-14 1986-11-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vacuum cleaner with a disc filter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349540A (en) * 1962-01-19 1964-01-17 Electrolux Ab Dust extractor
GB1154052A (en) * 1965-10-21 1969-06-04 Gen Electric Improvements in Vacuum Cleaners.
WO1985002100A1 (en) * 1983-11-17 1985-05-23 Progress-Elektrogeräte Mauz & Pfeiffer Gmbh & Co. Vacuum cleaner filter
DE3815321A1 (en) * 1988-05-05 1989-11-16 Licentia Gmbh Vacuum cleaner
DE4240172A1 (en) * 1992-11-30 1994-06-01 Miele & Cie Vacuum cleaner with main and fine dust filters - has zigzag fine dust filter contg deodorising layer of active carbon underneath electrostatically charged granulate filter layer

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790031A1 (en) * 1996-01-19 1997-08-20 AEG Hausgeräte GmbH Vacuum cleaner
EP0839492A2 (en) * 1996-10-31 1998-05-06 AEG Hausgeräte GmbH Floor cleaning device, in particular vacuum cleaner
EP0839492A3 (en) * 1996-10-31 2000-03-15 AEG Hausgeräte GmbH Floor cleaning device, in particular vacuum cleaner
AU2003245673B2 (en) * 2002-02-11 2006-09-07 Dyson Technology Limited A filter housing
WO2003068041A1 (en) * 2002-02-11 2003-08-21 Dyson Ltd A filter housing
WO2003068043A1 (en) * 2002-02-11 2003-08-21 Dyson Ltd A filter housing
CN1323632C (en) * 2002-02-11 2007-07-04 戴森技术有限公司 Filter housing
US7258714B2 (en) 2002-02-11 2007-08-21 Dyson Technology Limited Filter housing
CN100457013C (en) * 2002-02-11 2009-02-04 戴森技术有限公司 Filter housing
US7721385B2 (en) 2002-02-11 2010-05-25 Dyson Technology Limited Filter housing for a domestic appliance
EP1360921A3 (en) * 2002-05-08 2007-08-08 Vorwerk & Co. Interholding GmbH Fine filter situated in exhaust air stream of vacuum cleaner, and corresponding vacuum cleaner
WO2006024422A1 (en) * 2004-09-01 2006-03-09 Miele & Cie. Kg Vacuum cleaner provided with a fine dust filter in the outgoing air flow
WO2011080037A1 (en) * 2009-12-30 2011-07-07 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner comprising a hand protection element
EP2510853A1 (en) * 2011-04-12 2012-10-17 BSH Bosch und Siemens Hausgeräte GmbH Assembly for expelling a waste gas flow
WO2022000841A1 (en) * 2020-06-29 2022-01-06 天佑电器（苏州）有限公司 Vacuum cleaner

Also Published As

Publication number Publication date
DE4325110A1 (en) 1995-02-02
DE59402013D1 (en) 1997-04-17
EP0636337B1 (en) 1997-03-12

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