EP2640247A1 - Vacuum cleaner having at least one suction assembly - Google Patents

Vacuum cleaner having at least one suction assembly

Info

Publication number
EP2640247A1
EP2640247A1 EP10784471.4A EP10784471A EP2640247A1 EP 2640247 A1 EP2640247 A1 EP 2640247A1 EP 10784471 A EP10784471 A EP 10784471A EP 2640247 A1 EP2640247 A1 EP 2640247A1
Authority
EP
European Patent Office
Prior art keywords
suction
vacuum cleaner
exhaust
cleaner according
exhaust air
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
EP10784471.4A
Other languages
German (de)
French (fr)
Other versions
EP2640247B1 (en
Inventor
Jürgen FRANK
Kai Thorsten Langen
Maic Hensel
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co 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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP2640247A1 publication Critical patent/EP2640247A1/en
Application granted granted Critical
Publication of EP2640247B1 publication Critical patent/EP2640247B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • A47L9/122—Dry filters flat
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/20—Means for cleaning filters
    • 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
    • A47L9/22—Mountings for motor fan assemblies

Definitions

  • the invention relates to a vacuum cleaner with a dirt collecting container and an attachable to the dirt collecting suction head, wherein the suction head has at least one suction unit, which is in flow communication via a suction channel and a filter device with the dirt collecting and at least one exhaust duct with at least one exhaust port.
  • Dirt collecting container is often designed in the manner of a bucket on which the suction head can be placed.
  • the suction head comprises at least one suction unit, with the aid of which the dirt collecting container can be subjected to negative pressure. This makes it possible to pick up suction material from a surface, for example a floor surface, and transfer it to the dirt collecting container.
  • the flow connection between the dirt collecting container and the at least one suction unit takes place via a suction channel and a filter device. By means of the filter device sucked in by the dirt collecting suction air can be filtered.
  • the sucked suction air is discharged from the at least one suction unit to the environment.
  • the at least one suction unit is in flow connection via at least one exhaust air duct with at least one exhaust air opening.
  • the exhaust port is configured in the form of exhaust slots, which are arranged in a hood-shaped housing of the suction head.
  • Vacuum cleaner of the type mentioned on the one hand have a high suction performance, so that a surface to be cleaned can be sucked off within a short time, with coarse suction material is transferred from the surface in the dirt collecting.
  • the vacuum cleaners have a compact design and the operation of the vacuum cleaner should be associated with the lowest possible noise.
  • Object of the present invention is therefore to develop a vacuum cleaner of the type mentioned in such a way that it has a high suction power and a compact design and its operation is associated with a relatively low noise.
  • the suction head has two juxtaposed suction units, which are positioned in the vertical direction at the same height as the filter device, are surrounded by a common exhaust space, the exhaust space via a first and a second exhaust duct with exhaust ports is in flow communication and the filter device is arranged between the two exhaust air ducts.
  • the vacuum cleaner according to the invention is characterized by a high suction power.
  • he has two suction units.
  • the two suction units are arranged side by side and next to the filter device, in the vertical direction, the two suction units are at the same height as the filter device.
  • the noise of the two suction units is kept relatively low by being surrounded by a common exhaust air space, from which the exhaust air of the suction units can be discharged via two exhaust ducts at exhaust ports.
  • the filter device is located between the two exhaust air ducts. This improves the compact design of the vacuum cleaner.
  • the provision of the exhaust ducts has the additional advantage that the noise of the vacuum cleaner can be kept very low.
  • the filter device is formed in a preferred embodiment of the invention as a flat fold filter. It is advantageous if the flat fold filter is replaceable on the clean side. This has the advantage that the user does not get in contact with heavily soiled areas of the vacuum cleaner when replacing the flat pleated filter.
  • the flat pleated filter may, for example, have a filter cartridge which is accessible to the user on the downstream side of the filter with respect to the flow direction of the suction air.
  • the vacuum cleaner has a filter cleaning device with which the filter device can be cleaned.
  • the suction air can be filtered by means of the filter device.
  • the filter device sets gradually during the operating time with dirt particles, so that the filter device of the suction air opposes an increasing flow resistance and thus the suction power of the vacuum cleaner is increasingly reduced. It is therefore advantageous if the filter device can be cleaned.
  • the vacuum cleaner has a filter cleaning device.
  • the filter cleaning device is arranged above the filter device.
  • the filter cleaning device may, for example, have an external air valve, which may be opened for filter cleaning, via the external air valve external air abruptly flow into the suction channel and the filter device can act on its side facing away from the dirt collecting. This leads to a mechanical vibration of the filter unit. direction .
  • at least part of the external air flowing in via the external air valve flows through the filter device counter to the direction of flow prevailing during the normal suction operation.
  • the filter cleaning device is advantageously electrically controllable. It can be provided, for example, that the filter cleaning device has an electromagnet, with the aid of which the external air valve can be electrically actuated by a control device of the vacuum cleaner.
  • the exhaust air ducts are configured in a straight line.
  • the exhaust ducts form calming zones for the exhaust air.
  • the occurrence of air turbulence is kept low. As a result, a strong noise can be avoided.
  • the exhaust ducts are preferably aligned horizontally.
  • an additional noise reduction is achieved in an advantageous embodiment of the vacuum cleaner according to the invention in that the exhaust air space and / or the exhaust air ducts are at least partially lined by an insulating material.
  • Insulating mats in particular, can be used as insulation material, as they are known per se to a person skilled in the art.
  • the suction head has a bottom wall on which an exhaust hood rests, the bottom wall and the exhaust hood defining the exhaust air space.
  • the exhaust air space thus extends between the bottom wall of the suction head and the exhaust hood.
  • the two exhaust air ducts can connect to the exhaust hood.
  • the exhaust air ducts and the exhaust air space are formed in such an embodiment of the invention of the bottom wall of the suction head and the exhaust hood including the extensions.
  • the exhaust hood has two openings which are each penetrated by a suction housing, wherein the suction housing each receive a suction unit and wherein between the suction housings and the exhaust hood, a vibration-isolating material is arranged.
  • the suction housing can each serve to support a suction unit. Mechanical vibrations, which are transmitted from the suction units to the suction housing, can not readily be transferred to the exhaust hood, since a vibration-isolating material is arranged between the exhaust hood and the suction housings, for example a sponge rubber seal.
  • the suction housings are conveniently detachably connected to the bottom wall. For example, they can be bolted to the bottom wall.
  • the suction head advantageously has an outer hood which covers the exhaust hood. This leads to a further noise reduction.
  • the suction channel via which the suction turbines are in fluid communication with the dirt collecting container, has in an advantageous embodiment a vertically extending channel portion, which is arranged between the filter device and the cover. This allows a particularly compact design of the vacuum cleaner according to the invention.
  • Figure 1 a partial side view of a vacuum cleaner according to the invention with a dirt collecting container and a suction head.
  • FIG. 2 a sectional view of the suction head along the line 2-2 in FIG
  • FIG. 3 shows a sectional view of the suction head along the line 3-3 in FIG
  • FIG. 4 a sectional view of the suction head along the line 4-4 in FIG
  • the vacuum cleaner comprises a dirt collecting container 12, on which a suction head 14 is placed.
  • a first suction unit 16 and a second suction unit 18 are arranged, by means of which the dirt collecting 12 can be subjected to negative pressure.
  • the dirt collecting container 12 comprises a suction inlet 20, to which a suction hose, known per se to a person skilled in the art, can be connected in the usual way, which can carry a suction nozzle at its free end facing away from the dirt collecting container 12.
  • the two suction units 16 and 18 each include an electric motor 22 and 24, which drives a suction turbine 26 and 28, respectively.
  • the electric motors 22, 24 are vertically aligned, as are the suction turbines 26, 28, ie the motor and turbine axes extend in the vertical direction.
  • the electric motors 22, 24 are positioned above the suction turbines 26 and 28, respectively.
  • the filter device 32 is disposed at a suction outlet 34 of a bottom wall 36 of the suction head 14 and formed in the form of a flat pleated filter 38.
  • the suction channel 30 comprises a horizontal channel section 40 which extends along the upper side of the filter device 32 facing away from the dirt collector 12 and a vertical channel section 42 which adjoins the horizontal channel section 40 and extends to end sections 44, 46 below the suction turbines 26 and 28 are arranged.
  • the suction units 16 and 18 are each arranged in a cup-shaped suction housing 48 and 50, 26 and 28 having a plurality of housing openings, not shown in the drawing, through which the sucked suction air can be discharged at the level of the suction turbine.
  • the suction units 16 and 18 are for this purpose surrounded by a common exhaust air space 52 which is defined by an exhaust hood 54 and the bottom wall 36.
  • the exhaust hood 54 has, on its upper side facing away from the bottom wall 36, a first opening 56 and a second opening 58.
  • the first opening 56 is penetrated by the suction housing 48 of the first suction unit 16 and the second opening 58 is penetrated by the suction housing 50 of the second suction unit 18.
  • the suction housing 48, 50 are detachably connected by means of connecting screws 64 to the bottom wall 36.
  • the exhaust air space 52 is adjoined in the horizontal direction by a first exhaust air duct 66 and an identically formed second exhaust air duct 68, which are configured in a straight line and extend in a horizontal direction along transverse sides of the filter device 32 facing away from one another.
  • the filter device 32 is disposed between the first exhaust duct 66 and the second exhaust duct 68 and is located in the vertical direction at the same height as the second suction units 16 and 18. This is particularly apparent from Figures 2 and 4.
  • a filter cleaning device 74 is arranged in the suction head 14. This comprises an external air valve 76 with a valve plate 78 which can be moved back and forth in the vertical direction and, in its closed position, as shown in FIG. 4, sealingly bears against a valve housing 80 and thereby closes the external air valve 76.
  • valve disk 78 By means of an electromagnet 82, the valve disk 78 is held in its closed position.
  • the external air valve 76 can be opened briefly. As a result, foreign air can penetrate into the horizontal channel portion 40 of the suction channel 30 and the
  • the external air valve 76 is closed, so that by means of the two suction units 16 and 18 of the dirt collecting 12, as already mentioned, can be subjected to negative pressure.
  • the sucked by the suction units 16, 18 suction air can be supplied via the common exhaust air chamber 52 and the adjoining rectilinear exhaust ducts 66, 68 exhaust openings 84, 86, via which the exhaust air can be discharged to the environment.
  • the exhaust openings 84, 86 are configured in the form of exhaust air slots, which are formed in an outer hood 88 of the suction head 14. This becomes clear from FIG.
  • the exhaust air ducts 66 and 68 are formed by channel-shaped, in the illustrated embodiment U-shaped extensions 90, 92 of the exhaust hood 54 on the one hand and the bottom wall 36 on the other.
  • the extensions 90, 92 are formed on the exhaust hood 54, so that they form in combination with the exhaust hood 54 a one-piece exhaust air guide part 94 of the suction head 14, which rests on the bottom wall 36 and surrounds the suction units 16, 18 in the circumferential direction.
  • the exhaust air guide part 96 is arranged in the vertical direction at the same height as the filter device 32, and between the filter device 32 and the exhaust air guide part 96, the vertical channel portion 42 of the suction channel 30 is arranged. This becomes clear in particular from FIG.
  • the exhaust air guide part 96 is largely lined by an insulating material in the form of an insulating mat 98, which serves to reduce noise.
  • the vacuum cleaner 10 has a high suction power due to the use of the two suction units 16 and 18. Despite this high Suction power he distinguished by a low noise. Occurring operating noise is kept low by the provision of the Abluftrau- mes 52 and the rectilinear subsequent exhaust air ducts 66, 68 and by the use of the insulating mat 98.
  • the vacuum cleaner 10 is also characterized by a compact design. This is achieved in particular in that the two suction units 16, 18 are arranged in the vertical direction at the same height as the filter device 32, wherein the exhaust air ducts 66 and 68 along the transverse sides 70, 72 of the filter device 32 extend, thus between the two exhaust air ducts 66 , 68 is arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

Vacuum cleaner (10) having a dirt collection container (12) and a suction head (14) which can be mounted on the dirt collection container (12), wherein the suction head (14) has at least one suction assembly (16, 8) which forms a flow connection with the dirt collection container (12) by means of a suction duct (30) and a filter device (32) and forms a flow connection with at least one waste air opening (84, 86) by means of at least one waste air duct (66, 68). In order to develop the vacuum cleaner (10) in such a way that it has a high suction power and a compact construction and operation of said vacuum cleaner is associated with a relatively low development of noise, the suction head (14) has two suction assemblies (16, 8) which are arranged next to one another, are positioned at the same level as the filter device (32) in the vertical direction and are surrounded by a common waste air chamber (52), wherein the waste air chamber (52) forms a flow connection with two waste air openings (84, 86) by means of a first and a second waste air duct (66, 68), and the filter device (32) is arranged between the two waste air ducts (66, 68).

Description

STAUBSAUGER MIT MINDESTENS EINEM SAUGAGGREGAT  VACUUM CLEANER WITH AT LEAST ONE SUCTION UNIT
Die Erfindung betrifft einen Staubsauger mit einem Schmutzsammelbehälter und einem auf den Schmutzsammelbehälter aufsetzbaren Saugkopf, wobei der Saugkopf mindestens ein Saugaggregat aufweist, das über einen Saugkanal und eine Filtereinrichtung mit dem Schmutzsammelbehälter und über mindestens einen Abluftkanal mit mindestens einer Abluftöffnung in Strömungsverbindung steht. The invention relates to a vacuum cleaner with a dirt collecting container and an attachable to the dirt collecting suction head, wherein the suction head has at least one suction unit, which is in flow communication via a suction channel and a filter device with the dirt collecting and at least one exhaust duct with at least one exhaust port.
Derartige Staubsauger sind in vielfältiger Ausgestaltung bekannt. Der Such vacuum cleaners are known in various embodiments. Of the
Schmutzsammelbehälter ist häufig nach Art eines Eimers ausgestaltet, auf den der Saugkopf aufgesetzt werden kann. Der Saugkopf umfasst mindestens ein Saugaggregat, mit dessen Hilfe der Schmutzsammelbehälter mit Unterdruck beaufschlagt werden kann. Dies erlaubt es, Sauggut von einer Fläche, beispielsweise einer Bodenfläche, aufzunehmen und in den Schmutzsammelbehälter zu überführen. Die Strömungsverbindung zwischen dem Schmutzsammelbehälter und dem mindestens einen Saugaggregat erfolgt über einen Saugkanal und eine Filtereinrichtung. Mittels der Filtereinrichtung kann die vom Schmutzsammelbehälter eingesaugte Saugluft gefiltert werden. Die angesaugte Saugluft wird von dem mindestens einen Saugaggregat an die Umgebung abgegeben. Hierzu steht das mindestens eine Saugaggregat über mindestens einen Abluftkanal mit mindestens einer Abluftöffnung in Strömungsverbindung. In vielen Fällen ist die Abluftöffnung in Form von Abluftschlitzen ausgestaltet, die in einem haubenförmigen Gehäuse des Saugkopfes angeordnet sind. Dirt collecting container is often designed in the manner of a bucket on which the suction head can be placed. The suction head comprises at least one suction unit, with the aid of which the dirt collecting container can be subjected to negative pressure. This makes it possible to pick up suction material from a surface, for example a floor surface, and transfer it to the dirt collecting container. The flow connection between the dirt collecting container and the at least one suction unit takes place via a suction channel and a filter device. By means of the filter device sucked in by the dirt collecting suction air can be filtered. The sucked suction air is discharged from the at least one suction unit to the environment. For this purpose, the at least one suction unit is in flow connection via at least one exhaust air duct with at least one exhaust air opening. In many cases, the exhaust port is configured in the form of exhaust slots, which are arranged in a hood-shaped housing of the suction head.
Staubsauger der eingangs genannten Art sollen einerseits eine hohe Saugleistung aufweisen, so dass eine zu reinigende Fläche innerhalb kurzer Zeit abgesaugt werden kann, wobei auch grobes Sauggut von der Fläche in den Schmutzsammelbehälter überführt wird . Andererseits sollen die Staubsauger eine möglichst kompakte Bauform aufweisen und der Betrieb der Staubsauger soll mit einer möglichst geringen Geräuschentwicklung verbunden sein. Vacuum cleaner of the type mentioned on the one hand have a high suction performance, so that a surface to be cleaned can be sucked off within a short time, with coarse suction material is transferred from the surface in the dirt collecting. On the other hand, the vacuum cleaners have a compact design and the operation of the vacuum cleaner should be associated with the lowest possible noise.
Aufgabe der vorliegenden Erfindung ist es daher, einen Staubsauger der eingangs genannten Art derart weiterzubilden, dass er eine hohe Saugleistung und eine kompakte Bauform aufweist und sein Betrieb mit einer verhältnismäßig geringen Geräuschentwicklung verbunden ist. Object of the present invention is therefore to develop a vacuum cleaner of the type mentioned in such a way that it has a high suction power and a compact design and its operation is associated with a relatively low noise.
Diese Aufgabe wird bei einem Staubsauger der gattungsgemäßen Art erfindungsgemäß dadurch gelöst, dass der Saugkopf zwei nebeneinander angeordnete Saugaggregate aufweist, die in vertikaler Richtung auf gleicher Höhe wie die Filtereinrichtung positioniert sind, von einem gemeinsamen Abluftraum umgeben sind, wobei der Abluftraum über einen ersten und einen zweiten Abluftkanal mit Abluftöffnungen in Strömungsverbindung steht und die Filtereinrichtung zwischen den beiden Abluftkanälen angeordnet ist. This object is achieved in a vacuum cleaner of the generic type according to the invention that the suction head has two juxtaposed suction units, which are positioned in the vertical direction at the same height as the filter device, are surrounded by a common exhaust space, the exhaust space via a first and a second exhaust duct with exhaust ports is in flow communication and the filter device is arranged between the two exhaust air ducts.
Der erfindungsgemäße Staubsauger zeichnet sich durch eine hohe Saugleistung aus. Hierzu weist er zwei Saugaggregate auf. Die beiden Saugaggregate sind nebeneinander und neben der Filtereinrichtung angeordnet, in vertikaler Richtung befinden sich die beiden Saugaggregate auf gleicher Höhe wie die Filtereinrichtung. Dies verleiht dem Staubsauger eine kompakte Bauform. Die Geräuschentwicklung der beiden Saugaggregate wird verhältnismäßig gering gehalten, indem sie von einem gemeinsamen Abluftraum umgeben sind, von dem aus die Abluft der Saugaggregate über zwei Abluftkanäle an Abluftöffnungen abgegeben werden kann. Die Filtereinrichtung befindet sich zwischen den beiden Abluftkanälen. Dies verbessert die kompakte Ausgestaltung des Staubsaugers. Die Bereitstellung der Abluftkanäle hat darüber hinaus den Vorteil, dass die Geräuschentwicklung des Staubsaugers besonders gering gehalten werden kann . The vacuum cleaner according to the invention is characterized by a high suction power. For this purpose, he has two suction units. The two suction units are arranged side by side and next to the filter device, in the vertical direction, the two suction units are at the same height as the filter device. This gives the vacuum cleaner a compact design. The noise of the two suction units is kept relatively low by being surrounded by a common exhaust air space, from which the exhaust air of the suction units can be discharged via two exhaust ducts at exhaust ports. The filter device is located between the two exhaust air ducts. This improves the compact design of the vacuum cleaner. The provision of the exhaust ducts has the additional advantage that the noise of the vacuum cleaner can be kept very low.
Kostengünstig ist es, wenn die beiden Saugaggregate baugleich ausgestaltet sind . Dies vereinfacht die Montage des Staubsaugers. Von besonderem Vorteil im Hinblick auf eine kompakte Bauform ist es, wenn die beiden Saugaggregate vertikal ausgerichtet sind, d . h. wenn die Motorachsen der Elektromotoren der Saugaggregate vertikal ausgerichtet sind . It is cost effective if the two suction units are designed identical. This simplifies the installation of the vacuum cleaner. Of particular advantage in terms of a compact design, it is when the two suction units are aligned vertically, d. H. when the motor axes of the electric motors of the suction units are vertically aligned.
Die Filtereinrichtung ist bei einer bevorzugten Ausgestaltung der Erfindung als Flachfaltenfilter ausgebildet. Hierbei ist es günstig, wenn das Flachfaltenfilter reinseitig auswechselbar ist. Dies hat den Vorteil, dass der Benutzer beim Auswechseln des Flachfaltenfilters nicht mit stark verschmutzten Bereichen des Staubsaugers in Kontakt gelangt. Das Flachfaltenfilter kann beispielsweise eine Filterkartusche aufweisen, die dem Benutzer auf der bezogen auf die Strömungsrichtung der Saugluft stromabwärtigen Seite des Filters zugänglich ist. The filter device is formed in a preferred embodiment of the invention as a flat fold filter. It is advantageous if the flat fold filter is replaceable on the clean side. This has the advantage that the user does not get in contact with heavily soiled areas of the vacuum cleaner when replacing the flat pleated filter. The flat pleated filter may, for example, have a filter cartridge which is accessible to the user on the downstream side of the filter with respect to the flow direction of the suction air.
Von besonderem Vorteil im Hinblick auf eine einfache Handhabung des Staubsaugers ist es, wenn er eine Filterabreinigungseinrichtung aufweist, mit der die Filtereinrichtung abgereinigt werden kann. Wie bereits erwähnt, kann mittels der Filtereinrichtung die Saugluft gefiltert werden. Hierbei setzt sich die Filtereinrichtung im Laufe der Betriebszeit allmählich mit Schmutzpartikeln zu, so dass die Filtereinrichtung der Saugluft einen zunehmenden Strömungswiderstand entgegensetzt und dadurch die Saugleistung des Staubsaugers zunehmend verringert wird . Es ist deshalb von Vorteil, wenn die Filtereinrichtung abgereinigt werden kann. Bei einer vorteilhaften Ausführungsform weist deshalb der Staubsauger eine Filterabreinigungseinrichtung auf. Of particular advantage with regard to easy handling of the vacuum cleaner is when it has a filter cleaning device with which the filter device can be cleaned. As already mentioned, the suction air can be filtered by means of the filter device. In this case, the filter device sets gradually during the operating time with dirt particles, so that the filter device of the suction air opposes an increasing flow resistance and thus the suction power of the vacuum cleaner is increasingly reduced. It is therefore advantageous if the filter device can be cleaned. In an advantageous embodiment, therefore, the vacuum cleaner has a filter cleaning device.
Im Hinblick auf eine kompakte Ausgestaltung ist es vorteilhaft, wenn die Filterabreinigungseinrichtung oberhalb der Filtereinrichtung angeordnet ist. Die Filterabreinigungseinrichtung kann beispielsweise ein Fremdluftventil aufweisen, das zur Filterabreinigung geöffnet werden kann, wobei über das Fremdluftventil Fremdluft schlagartig in den Saugkanal einströmen und die Filtereinrichtung auf ihrer dem Schmutzsammelbehälter abgewandten Seite beaufschlagen kann . Dies führt zu einer mechanischen Erschütterung der Filterein- richtung . Darüber hinaus strömt zumindest ein Teil der über das Fremdluftventil einströmenden Fremdluft entgegen der während des normalen Saugbetriebes herrschenden Strömungsrichtung durch die Filtereinrichtung . With regard to a compact embodiment, it is advantageous if the filter cleaning device is arranged above the filter device. The filter cleaning device may, for example, have an external air valve, which may be opened for filter cleaning, via the external air valve external air abruptly flow into the suction channel and the filter device can act on its side facing away from the dirt collecting. This leads to a mechanical vibration of the filter unit. direction . In addition, at least part of the external air flowing in via the external air valve flows through the filter device counter to the direction of flow prevailing during the normal suction operation.
Dadurch wird das Ablösen von Schmutzpartikeln von der Filtereinrichtung verstärkt. As a result, the detachment of dirt particles is reinforced by the filter device.
Die Filterabreinigungseinrichtung ist vorteilhafterweise elektrisch steuerbar. Es kann beispielsweise vorgesehen sein, dass die Filterabreinigungseinrichtung einen Elektromagneten aufweist, mit dessen Hilfe das Fremdluftventil von einer Steuereinrichtung des Staubsaugers elektrisch betätigt werden kann. The filter cleaning device is advantageously electrically controllable. It can be provided, for example, that the filter cleaning device has an electromagnet, with the aid of which the external air valve can be electrically actuated by a control device of the vacuum cleaner.
Um die Geräuschentwicklung des Staubsaugers besonders gering zu halten, ist es günstig, wenn die Abluftkanäle geradlinig ausgestaltet sind . Die Abluftkanäle bilden Beruhigungszonen für die Abluft aus. Das Auftreten von Luftturbulenzen wird dadurch gering gehalten. Dadurch kann eine starke Geräuschentwicklung vermieden werden. In order to keep the noise of the vacuum cleaner particularly low, it is advantageous if the exhaust air ducts are configured in a straight line. The exhaust ducts form calming zones for the exhaust air. The occurrence of air turbulence is kept low. As a result, a strong noise can be avoided.
Die Abluftkanäle sind vorzugsweise horizontal ausgerichtet. The exhaust ducts are preferably aligned horizontally.
Eine zusätzliche Geräuschverminderung wird bei einer vorteilhaften Ausführungsform des erfindungsgemäßen Staubsaugers dadurch erzielt, dass der Abluftraum und/oder die Abluftkanäle zumindest bereichsweise von einem Dämmmaterial ausgekleidet sind. Als Dämmmaterial können insbesondere Dämmmatten zum Einsatz kommen, wie sie dem Fachmann an sich bekannt sind . An additional noise reduction is achieved in an advantageous embodiment of the vacuum cleaner according to the invention in that the exhaust air space and / or the exhaust air ducts are at least partially lined by an insulating material. Insulating mats, in particular, can be used as insulation material, as they are known per se to a person skilled in the art.
Günstig ist es, wenn der Abluftraum die beiden Saugaggregate in Umfangs- richtung vollständig umgibt. Eine derartige Ausgestaltung hat den Vorteil, dass die Saugluft, die von den Saugaggregaten angesaugt wird, über den gesamten Umfang der Saugaggregate an den Abluftraum abgegeben werden kann. It is favorable if the exhaust air space completely surrounds the two suction units in the circumferential direction. Such a configuration has the advantage that the suction air, which is sucked by the suction units, can be discharged over the entire circumference of the suction units to the exhaust air space.
Anschließend kann die Abluft dann über die beiden Abluftkanäle und die sich daran anschließenden Abluftöffnungen an die Umgebung abgegeben werden. Der Saugkopf weist bei einer bevorzugten Ausgestaltung eine Bodenwand auf, auf der eine Ablufthaube aufsitzt, wobei die Bodenwand und die Ablufthaube den Abluftraum definieren. Der Abluftraum erstreckt sich somit zwischen der Bodenwand des Saugkopfes und der Ablufthaube. Subsequently, the exhaust air can then be discharged via the two exhaust air ducts and the adjoining exhaust openings to the environment. In a preferred embodiment, the suction head has a bottom wall on which an exhaust hood rests, the bottom wall and the exhaust hood defining the exhaust air space. The exhaust air space thus extends between the bottom wall of the suction head and the exhaust hood.
An die Ablufthaube können sich die beiden Abluftkanäle anschließen. The two exhaust air ducts can connect to the exhaust hood.
Von Vorteil ist es, wenn an die Ablufthaube zwei Verlängerungen angeformt sind, die in Kombination mit der Bodenwand die Abluftkanäle ausbilden. Die Abluftkanäle und der Abluftraum werden bei einer derartigen Ausgestaltung der Erfindung von der Bodenwand des Saugkopfes und der Ablufthaube einschließlich der Verlängerungen gebildet. It is advantageous if two extensions are formed on the exhaust hood, which form the exhaust air ducts in combination with the bottom wall. The exhaust air ducts and the exhaust air space are formed in such an embodiment of the invention of the bottom wall of the suction head and the exhaust hood including the extensions.
Bevorzugt weist die Ablufthaube zwei Öffnungen auf, die jeweils von einem Sauggehäuse durchgriffen sind, wobei die Sauggehäuse jeweils ein Saugaggregat aufnehmen und wobei zwischen den Sauggehäusen und der Ablufthaube ein schwingungsisolierendes Material angeordnet ist. Die Sauggehäuse können jeweils der Lagerung eines Saugaggregates dienen. Mechanische Schwingungen, die von der Saugaggregaten auf die Sauggehäuse übertragen werden, können sich nicht ohne Weiteres auf die Ablufthaube übertragen, da zwischen der Ablufthaube und den Sauggehäusen ein schwingungsisolierendes Material angeordnet ist, beispielsweise eine Moosgummidichtung. Preferably, the exhaust hood has two openings which are each penetrated by a suction housing, wherein the suction housing each receive a suction unit and wherein between the suction housings and the exhaust hood, a vibration-isolating material is arranged. The suction housing can each serve to support a suction unit. Mechanical vibrations, which are transmitted from the suction units to the suction housing, can not readily be transferred to the exhaust hood, since a vibration-isolating material is arranged between the exhaust hood and the suction housings, for example a sponge rubber seal.
Die Sauggehäuse sind günstigerweise lösbar mit der Bodenwand verbunden. Sie können mit der Bodenwand beispielsweise verschraubt sein. The suction housings are conveniently detachably connected to the bottom wall. For example, they can be bolted to the bottom wall.
Der Saugkopf weist vorteilhafter weise eine Außenhaube auf, die die Ablufthaube überdeckt. Dies führt zu einer weiteren Geräuschverminderung. The suction head advantageously has an outer hood which covers the exhaust hood. This leads to a further noise reduction.
Der Saugkanal, über den die Saugturbinen mit dem Schmutzsammelbehälter in Strömungsverbindung stehen, weist bei einer vorteilhaften Ausführungsform einen vertikal verlaufenden Kanalabschnitt auf, der zwischen der Filtereinrichtung und der Abdeckhaube angeordnet ist. Dies ermöglicht eine besonders kompakte Bauform des erfindungsgemäßen Staubsaugers. The suction channel, via which the suction turbines are in fluid communication with the dirt collecting container, has in an advantageous embodiment a vertically extending channel portion, which is arranged between the filter device and the cover. This allows a particularly compact design of the vacuum cleaner according to the invention.
Die nachfolgende Beschreibung einer bevorzugten Ausführungsform der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen : The following description of a preferred embodiment of the invention serves in conjunction with the drawings for further explanation. Show it :
Figur 1 : eine teilweise Seitenansicht eines erfindungsgemäßen Staubsaugers mit einem Schmutzsammelbehälter und einem Saugkopf. Figure 1: a partial side view of a vacuum cleaner according to the invention with a dirt collecting container and a suction head.
Figur 2 : eine Schnittansicht des Saugkopfes entlang der Linie 2-2 in Figur FIG. 2: a sectional view of the suction head along the line 2-2 in FIG
i ;  i;
Figur 3 : eine Schnittansicht des Saugkopfes entlang der Linie 3-3 in Figur 3 shows a sectional view of the suction head along the line 3-3 in FIG
2, und  2, and
Figur 4: eine Schnittansicht des Saugkopfes entlang der Linie 4-4 in Figur FIG. 4: a sectional view of the suction head along the line 4-4 in FIG
2.  Second
In der Zeichnung ist schematisch eine bevorzugte Ausführungsform eines erfindungsgemäßen Staubsaugers dargestellt, die insgesamt mit dem Bezugszeichen 10 belegt ist. Der Staubsauger umfasst einen Schmutzsammelbehälter 12, auf den ein Saugkopf 14 aufgesetzt ist. Im Saugkopf sind ein erstes Saugaggregat 16 und ein zweites Saugaggregat 18 angeordnet, mit deren Hilfe der Schmutzsammelbehälter 12 mit Unterdruck beaufschlagt werden kann. Der Schmutzsammelbehälter 12 umfasst einen Saugeinlass 20, an den in üblicher Weise ein dem Fachmann an sich bekannter Saugschlauch angeschlossen werden kann, der an seinem freien, dem Schmutzsammelbehälter 12 abgewandten Ende eine Saugdüse tragen kann. Dies erlaubt es, eine Fläche, insbesondere eine Bodenfläche abzusaugen, wobei Sauggut von der Fläche über den Saugeinlass 20 in den Schmutzsammelbehälter 12 eingesaugt werden kann. Die beiden Saugaggregate 16 und 18 umfassen jeweils einen Elektromotor 22 bzw. 24, der eine Saugturbine 26 bzw. 28 antreibt. Die Elektromotoren 22, 24 sind ebenso wie die Saugturbinen 26, 28 vertikal ausgerichtet, d. h. die Motor- und Turbinenachsen verlaufen in vertikaler Richtung. Die Elektromotoren 22, 24 sind oberhalb der Saugturbinen 26 bzw. 28 positioniert. In the drawing, a preferred embodiment of a vacuum cleaner according to the invention is shown schematically, which is generally occupied by the reference numeral 10. The vacuum cleaner comprises a dirt collecting container 12, on which a suction head 14 is placed. In the suction head, a first suction unit 16 and a second suction unit 18 are arranged, by means of which the dirt collecting 12 can be subjected to negative pressure. The dirt collecting container 12 comprises a suction inlet 20, to which a suction hose, known per se to a person skilled in the art, can be connected in the usual way, which can carry a suction nozzle at its free end facing away from the dirt collecting container 12. This makes it possible to suck off a surface, in particular a bottom surface, wherein suction material can be sucked from the surface via the suction inlet 20 into the dirt collecting container 12. The two suction units 16 and 18 each include an electric motor 22 and 24, which drives a suction turbine 26 and 28, respectively. The electric motors 22, 24 are vertically aligned, as are the suction turbines 26, 28, ie the motor and turbine axes extend in the vertical direction. The electric motors 22, 24 are positioned above the suction turbines 26 and 28, respectively.
Die Strömungsverbindung der beiden Saugaggregate 16, 18 mit dem The flow connection of the two suction units 16, 18 with the
Schmutzsammelbehälter 12 erfolgt über einen Saugkanal 30 und eine Filtereinrichtung 32. Die Filtereinrichtung 32 ist an einem Saugauslass 34 einer Bodenwand 36 des Saugkopfes 14 angeordnet und in Form eines Flachfaltenfilters 38 ausgebildet. Dirt collecting container 12 via a suction channel 30 and a filter device 32. The filter device 32 is disposed at a suction outlet 34 of a bottom wall 36 of the suction head 14 and formed in the form of a flat pleated filter 38.
Der Saugkanal 30 umfasst einen horizontalen Kanalabschnitt 40, der entlang der dem Schmutzsammelbehälter 12 abgewandten Oberseite der Filtereinrichtung 32 verläuft, sowie einen vertikalen Kanalabschnitt 42, der sich an den horizontalen Kanalabschnitt 40 anschließt und sich bis zu Endabschnitten 44, 46 erstreckt, die unterhalb der Saugturbinen 26 bzw. 28 angeordnet sind. The suction channel 30 comprises a horizontal channel section 40 which extends along the upper side of the filter device 32 facing away from the dirt collector 12 and a vertical channel section 42 which adjoins the horizontal channel section 40 and extends to end sections 44, 46 below the suction turbines 26 and 28 are arranged.
Die Saugaggregate 16 und 18 sind jeweils in einem topfartigen Sauggehäuse 48 bzw. 50 angeordnet, das in Höhe der Saugturbinen 26 bzw. 28 eine Vielzahl von in der Zeichnung nicht dargestellten Gehäuseöffnungen aufweist, über die die angesaugte Saugluft abgegeben werden kann. Die Saugaggregate 16 und 18 sind hierzu von einem gemeinsamen Abluftraum 52 umgeben, der von einer Ablufthaube 54 und der Bodenwand 36 definiert wird . Die Ablufthaube 54 weist auf ihrer der Bodenwand 36 abgewandten Oberseite eine erste Öffnung 56 und eine zweite Öffnung 58 auf. Die erste Öffnung 56 wird vom Sauggehäuse 48 des ersten Saugaggregates 16 durchgriffen und die zweite Öffnung 58 wird vom Sauggehäuse 50 des zweiten Saugaggregates 18 durchgriffen. Zwischen den Sauggehäusen 48 und 50 einerseits und der Ablufthaube 54 andererseits ist jeweils ein schwingungsisolierendes Material in Form einer Moosgummidichtung 60 bzw. 62 angeordnet. Mechanische Schwingungen werden daher nicht ohne Weiteres von den jeweils ein Saugaggregat 16 bzw. 18 lagernden Sauggehäusen 48, 50 auf die Abdeckhaube 54 übertragen. The suction units 16 and 18 are each arranged in a cup-shaped suction housing 48 and 50, 26 and 28 having a plurality of housing openings, not shown in the drawing, through which the sucked suction air can be discharged at the level of the suction turbine. The suction units 16 and 18 are for this purpose surrounded by a common exhaust air space 52 which is defined by an exhaust hood 54 and the bottom wall 36. The exhaust hood 54 has, on its upper side facing away from the bottom wall 36, a first opening 56 and a second opening 58. The first opening 56 is penetrated by the suction housing 48 of the first suction unit 16 and the second opening 58 is penetrated by the suction housing 50 of the second suction unit 18. Between the suction housings 48 and 50 on the one hand and the exhaust hood 54 on the other hand, in each case a vibration-insulating material in the form of a foam rubber seal 60 and 62, respectively. Mechanical vibrations are therefore not readily transferred from the respective suction unit 16 and 18 superimposed suction housings 48, 50 on the cover 54.
Die Sauggehäuse 48, 50 sind mittels Verbindungsschrauben 64 mit der Bodenwand 36 lösbar verbunden . The suction housing 48, 50 are detachably connected by means of connecting screws 64 to the bottom wall 36.
An den Abluftraum 52 schließen sich in horizontaler Richtung ein erster Abluftkanal 66 und ein identisch ausgebildeter zweiter Abluftkanal 68 an, die jeweils geradlinig ausgestaltet sind und in horizontaler Richtung entlang einander abgewandter Querseiten der Filtereinrichtung 32 verlaufen. Die Filtereinrichtung 32 ist zwischen dem ersten Abluftkanal 66 und dem zweiten Abluftkanal 68 angeordnet und befindet sich in vertikaler Richtung auf derselben Höhe wie die zweiten Saugaggregate 16 und 18. Dies wird insbesondere aus den Figuren 2 und 4 deutlich. The exhaust air space 52 is adjoined in the horizontal direction by a first exhaust air duct 66 and an identically formed second exhaust air duct 68, which are configured in a straight line and extend in a horizontal direction along transverse sides of the filter device 32 facing away from one another. The filter device 32 is disposed between the first exhaust duct 66 and the second exhaust duct 68 and is located in the vertical direction at the same height as the second suction units 16 and 18. This is particularly apparent from Figures 2 and 4.
Oberhalb der Filtereinrichtung 32 ist im Saugkopf 14 eine Filterabreinigungs- einrichtung 74 angeordnet. Diese umfasst ein Fremdluftventil 76 mit einem in vertikaler Richtung hin und her bewegbaren Ventilteller 78, der in seiner Schließstellung, wie sie in Figur 4 dargestellt ist, dichtend an einem Ventilgehäuse 80 anliegt und dadurch das Fremdluftventil 76 schließt. Above the filter device 32, a filter cleaning device 74 is arranged in the suction head 14. This comprises an external air valve 76 with a valve plate 78 which can be moved back and forth in the vertical direction and, in its closed position, as shown in FIG. 4, sealingly bears against a valve housing 80 and thereby closes the external air valve 76.
Mittels eines Elektromagneten 82 wird der Ventilteller 78 in seiner Schließstellung gehalten. Zur Abreinigung der Filtereinrichtung 32 kann das Fremdluftventil 76 kurzzeitig geöffnet werden. Dadurch kann Fremdluft in den horizontalen Kanalabschnitt 40 des Saugkanals 30 eindringen und die dem By means of an electromagnet 82, the valve disk 78 is held in its closed position. For cleaning the filter device 32, the external air valve 76 can be opened briefly. As a result, foreign air can penetrate into the horizontal channel portion 40 of the suction channel 30 and the
Schmutzsammelbehälter 12 abgewandte Seite der Filtereinrichtung 32 mechanisch beaufschlagen. Dies führt zu einer mechanischen Erschütterung der Filtereinrichtung 32, die zur Folge hat, dass an der dem Schmutzsammelbehälter 12 zugewandten Unterseite der Filtereinrichtung 32 anhaftende Schmutzpartikel gelöst werden. Zusätzlich durchströmt zumindest ein Teil der Fremdluft die Filtereinrichtung 32 entgegen der sich während des normalen Saugbetriebes des Staubsaugers 10 ausbildenden Strömungsrichtung . Dadurch wird das Ablösen von Schmutzpartikeln von der Filtereinrichtung 32 verstärkt. Dirt collecting 12 facing away from the filter device 32 mechanically act. This leads to a mechanical vibration of the filter device 32, which has the consequence that at the dirt collecting container 12 facing bottom of the filter device 32 adhering dirt particles are released. In addition, at least a portion of the external air flows through the filter device 32 against the during normal suction operation of the vacuum cleaner 10 forming flow direction. As a result, the detachment of dirt particles from the filter device 32 is amplified.
Während des normalen Saugbetriebes ist das Fremdluftventil 76 geschlossen, so dass mittels der beiden Saugaggregate 16 und 18 der Schmutzsammelbehälter 12, wie bereits erwähnt, mit Unterdruck beaufschlagt werden kann. During the normal suction operation, the external air valve 76 is closed, so that by means of the two suction units 16 and 18 of the dirt collecting 12, as already mentioned, can be subjected to negative pressure.
Die von den Saugaggregaten 16, 18 angesaugte Saugluft kann über den gemeinsamen Abluftraum 52 und die sich daran anschließenden geradlinigen Abluftkanäle 66, 68 Abluftöffnungen 84, 86 zugeleitet werden, über die die Abluft an die Umgebung abgegeben werden kann. Die Abluftöffnungen 84, 86 sind in Form von Abluftschlitzen ausgestaltet, die in eine Außenhaube 88 des Saugkopfes 14 eingeformt sind. Dies wird aus Figur 1 deutlich. The sucked by the suction units 16, 18 suction air can be supplied via the common exhaust air chamber 52 and the adjoining rectilinear exhaust ducts 66, 68 exhaust openings 84, 86, via which the exhaust air can be discharged to the environment. The exhaust openings 84, 86 are configured in the form of exhaust air slots, which are formed in an outer hood 88 of the suction head 14. This becomes clear from FIG.
Die Abluftkanäle 66 und 68 werden von rinnenförmigen, in der dargestellten Ausführungsform U-förmig ausgestalteten Verlängerungen 90, 92 der Ablufthaube 54 einerseits und der Bodenwand 36 andererseits gebildet. Die Verlängerungen 90, 92 sind an die Ablufthaube 54 angeformt, so dass sie in Kombination mit der Ablufthaube 54 ein einteiliges Abluftführungsteil 94 des Saugkopfes 14 ausbilden, das auf der Bodenwand 36 aufsitzt und die Saugaggregate 16, 18 in Umfangsrichtung umgibt. The exhaust air ducts 66 and 68 are formed by channel-shaped, in the illustrated embodiment U-shaped extensions 90, 92 of the exhaust hood 54 on the one hand and the bottom wall 36 on the other. The extensions 90, 92 are formed on the exhaust hood 54, so that they form in combination with the exhaust hood 54 a one-piece exhaust air guide part 94 of the suction head 14, which rests on the bottom wall 36 and surrounds the suction units 16, 18 in the circumferential direction.
Das Abluftführungsteil 96 ist in vertikaler Richtung auf derselben Höhe angeordnet wie die Filtereinrichtung 32, und zwischen der Filtereinrichtung 32 und dem Abluftführungsteil 96 ist der vertikale Kanalabschnitt 42 des Saugkanals 30 angeordnet. Dies wird insbesondere aus Figur 2 deutlich. The exhaust air guide part 96 is arranged in the vertical direction at the same height as the filter device 32, and between the filter device 32 and the exhaust air guide part 96, the vertical channel portion 42 of the suction channel 30 is arranged. This becomes clear in particular from FIG.
Das Abluftführungsteil 96 ist größtenteils von einem Dämmmaterial in Form einer Dämmmatte 98 ausgekleidet, das der Geräuschreduzierung dient. The exhaust air guide part 96 is largely lined by an insulating material in the form of an insulating mat 98, which serves to reduce noise.
Der erfindungsgemäße Staubsauger 10 weist aufgrund des Einsatzes der beiden Saugaggregate 16 und 18 eine hohe Saugleistung auf. Trotz dieser hohen Saugleistung zeichnet er sieh durch eine geringe Geräuschentwicklung aus. Auftretende Betriebsgeräusche werden durch die Bereitstellung des Abluftrau- mes 52 und die sich daran geradlinig anschließenden Abluftkanäle 66, 68 sowie durch den Einsatz der Dämmmatte 98 gering gehalten. Der Staubsauger 10 zeichnet sich darüber hinaus durch eine kompakte Bauform aus. Diese wird insbesondere dadurch erzielt, dass die beiden Saugaggregate 16, 18 in vertikaler Richtung auf derselben Höhe angeordnet sind wie die Filtereinrichtung 32, wobei die Abluftkanäle 66 und 68 entlang der Querseiten 70, 72 der Filtereinrichtung 32 verlaufen, die somit zwischen den beiden Abluftkanälen 66, 68 angeordnet ist. The vacuum cleaner 10 according to the invention has a high suction power due to the use of the two suction units 16 and 18. Despite this high Suction power he distinguished by a low noise. Occurring operating noise is kept low by the provision of the Abluftrau- mes 52 and the rectilinear subsequent exhaust air ducts 66, 68 and by the use of the insulating mat 98. The vacuum cleaner 10 is also characterized by a compact design. This is achieved in particular in that the two suction units 16, 18 are arranged in the vertical direction at the same height as the filter device 32, wherein the exhaust air ducts 66 and 68 along the transverse sides 70, 72 of the filter device 32 extend, thus between the two exhaust air ducts 66 , 68 is arranged.

Claims

P A T E N T A N S P R Ü C H E PATENT APPLICATIONS
1. Staubsauger mit einem Schmutzsammelbehälter (12) und einem auf den Schmutzsammelbehälter (12) aufsetzbaren Saugkopf (14), wobei der Saugkopf (14) mindestens ein Saugaggregat (16, 18) aufweist, das über einen Saugkanal (30) und eine Filtereinrichtung (32) mit dem Schmutzsammelbehälter (12) und über mindestens einen Abluftkanal (66, 68) mit mindestens einer Abluftöffnung (84, 86) in Strömungsverbindung steht, dadurch gekennzeichnet, dass der Saugkopf (14) zwei nebeneinander angeordnete Saugaggregate (16, 18) aufweist, die in vertikaler Richtung auf gleicher Höhe wie die Filtereinrichtung (32) positioniert und von einem gemeinsamen Abluftraum (52) umgeben sind, wobei der Ab- luftraum (52) über einen ersten und einen zweiten Abluftkanal (66, 68) mit Abluftöffnungen (84, 86) in Strömungsverbindung steht und die Filtereinrichtung (32) zwischen den beiden Abluftkanälen (66, 68) angeordnet sind. 1. Vacuum cleaner with a dirt collecting container (12) and a dirt collecting container (12) attachable suction head (14), wherein the suction head (14) at least one suction unit (16, 18) which via a suction channel (30) and a filter device ( 32) with the dirt collecting container (12) and via at least one exhaust duct (66, 68) with at least one exhaust port (84, 86) is in flow communication, characterized in that the suction head (14) has two juxtaposed suction units (16, 18) , which are positioned in the vertical direction at the same height as the filter device (32) and surrounded by a common exhaust air space (52), the exhaust air space (52) via a first and a second exhaust air duct (66, 68) with exhaust air openings (84 , 86) is in flow communication and the filter device (32) between the two exhaust air ducts (66, 68) are arranged.
2. Staubsauger nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Saugaggregate (16, 18) baugleich ausgestaltet sind . 2. Vacuum cleaner according to claim 1, characterized in that the two suction units (16, 18) are designed identical.
3. Staubsauger nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die beiden Saugaggregate (16, 18) vertikal ausgerichtet sind. 3. Vacuum cleaner according to claim 1 or 2, characterized in that the two suction units (16, 18) are vertically aligned.
4. Staubsauger nach einem der voran stehenden Ansprüche, dadurch 4. Vacuum cleaner according to one of the preceding claims, characterized
gekennzeichnet, dass die Filtereinrichtung (32) ein Flachfaltenfilter (38) aufweist. in that the filter device (32) has a flat fold filter (38).
5. Staubsauger nach einem der voran stehenden Ansprüche, dadurch gekennzeichnet, dass oberhalb der Filtereinrichtung (32) eine Filter- abreinigungseinrichtung (74) angeordnet ist. 5. Vacuum cleaner according to one of the preceding claims, characterized in that above the filter device (32) a filter cleaning device (74) is arranged.
6. Staubsauger nach einem der voran stehenden Ansprüche, dadurch 6. Vacuum cleaner according to one of the preceding claims, characterized
gekennzeichnet, dass die Abluftkanäle (66, 68) geradlinig ausgestaltet sind.  characterized in that the exhaust air ducts (66, 68) are designed in a straight line.
7. Staubsauger nach einem der voran stehenden Ansprüche, dadurch 7. Vacuum cleaner according to one of the preceding claims, characterized
gekennzeichnet, dass die Abluftkanäle (66, 68) horizontal ausgerichtet sind.  characterized in that the exhaust air ducts (66, 68) are aligned horizontally.
8. Staubsauger nach einem der voran stehenden Ansprüche, dadurch 8. Vacuum cleaner according to one of the preceding claims, characterized
gekennzeichnet, dass der Abluftraum (52) und/oder die Abluftkanäle (66, 68) zumindest bereichsweise von einem Dämmmaterial (98) ausgekleidet sind.  characterized in that the exhaust air space (52) and / or the exhaust air ducts (66, 68) are at least partially lined by an insulating material (98).
9. Staubsauger nach einem der voran stehenden Ansprüche, dadurch 9. Vacuum cleaner according to one of the preceding claims, characterized
gekennzeichnet, dass der Abluftraum (52) die Saugaggregate (16, 18) in Umfangsrichtung vollständig umgibt.  in that the exhaust air space (52) completely surrounds the suction units (16, 18) in the circumferential direction.
10. Staubsauger nach einem der voran stehenden Ansprüche, dadurch 10. Vacuum cleaner according to one of the preceding claims, characterized
gekennzeichnet, dass der Saugkopf (14) eine Bodenwand (36) aufweist, auf der eine Ablufthaube (54) aufsitzt, die in Kombination mit der Bodenwand (36) den Abluftraum (52) definiert.  characterized in that the suction head (14) has a bottom wall (36) on which an exhaust hood (54) is seated, which defines the exhaust air space (52) in combination with the bottom wall (36).
11. Staubsauger nach Anspruch 10, dadurch gekennzeichnet, dass an die Ablufthaube (54) zwei Verlängerungen (90, 92) angeformt sind, die in Kombination mit der Bodenwand (36) die Abluftkanäle (66, 68) definieren. 11. Vacuum cleaner according to claim 10, characterized in that on the exhaust hood (54) two extensions (90, 92) are formed, which define in combination with the bottom wall (36) the exhaust air ducts (66, 68).
12. Staubsauger nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass die Ablufthaube (54) zwei Öffnungen (56, 58) aufweist, die jeweils von einem Sauggehäuse (48, 50) durchgriffen sind, wobei die Sauggehäuse (48, 50) jeweils ein Saugaggregat (16, 18) aufnehmen und zwischen den Sauggehäusen (48, 50) und der Ablufthaube (54) ein schwingungsisolierendes Material (60, 62) angeordnet ist. 12. Vacuum cleaner according to claim 10 or 11, characterized in that the exhaust hood (54) has two openings (56, 58) which are each penetrated by a suction housing (48, 50), wherein the suction housing (48, 50) each one Take suction unit (16, 18) and between the suction housings (48, 50) and the exhaust hood (54) a vibration-isolating material (60, 62) is arranged.
13. Staubsauger nach Anspruch 12, dadurch gekennzeichnet, dass die Sauggehäuse (48, 50) mit der Bodenwand (36) lösbar verbunden sind . 13. Vacuum cleaner according to claim 12, characterized in that the suction housing (48, 50) with the bottom wall (36) are detachably connected.
14. Staubsauger nach einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, dass der Saugkopf (14) eine Außenhaube (88) aufweist, die die Ablufthaube (54) überdeckt. 14. Vacuum cleaner according to one of claims 10 to 13, characterized in that the suction head (14) has an outer hood (88) which covers the exhaust hood (54).
15. Staubsauger nach einem der Ansprüche 10 bis 14, dadurch gekennzeichnet, dass der Saugkanal (30) einen vertikal verlaufenden Kanalabschnitt (42) aufweist, der zwischen der Filtereinrichtung (32) und der Ablufthaube (54) angeordnet ist. 15. Vacuum cleaner according to one of claims 10 to 14, characterized in that the suction channel (30) has a vertically extending channel portion (42) which is arranged between the filter device (32) and the exhaust hood (54).
EP10784471.4A 2010-11-16 2010-11-16 Vacuum cleaner with at least one suction aggregate Active EP2640247B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/067564 WO2012065627A1 (en) 2010-11-16 2010-11-16 Vacuum cleaner having at least one suction assembly

Publications (2)

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EP2640247A1 true EP2640247A1 (en) 2013-09-25
EP2640247B1 EP2640247B1 (en) 2019-04-24

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EP10784471.4A Active EP2640247B1 (en) 2010-11-16 2010-11-16 Vacuum cleaner with at least one suction aggregate

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US (1) US9351620B2 (en)
EP (1) EP2640247B1 (en)
CN (1) CN103220953B (en)
DK (1) DK2640247T3 (en)
RU (1) RU2564208C2 (en)
WO (1) WO2012065627A1 (en)

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Also Published As

Publication number Publication date
RU2564208C2 (en) 2015-09-27
RU2013127140A (en) 2014-12-27
EP2640247B1 (en) 2019-04-24
US9351620B2 (en) 2016-05-31
WO2012065627A1 (en) 2012-05-24
US20130247328A1 (en) 2013-09-26
CN103220953A (en) 2013-07-24
DK2640247T3 (en) 2019-07-08
CN103220953B (en) 2016-04-13

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