EP2320781B1 - Vacuum cleaner - Google Patents

Vacuum cleaner Download PDF

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Publication number
EP2320781B1
EP2320781B1 EP09781385.1A EP09781385A EP2320781B1 EP 2320781 B1 EP2320781 B1 EP 2320781B1 EP 09781385 A EP09781385 A EP 09781385A EP 2320781 B1 EP2320781 B1 EP 2320781B1
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EP
European Patent Office
Prior art keywords
partition wall
vacuum cleaner
air
ribs
cleaner according
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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.)
Not-in-force
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EP09781385.1A
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German (de)
French (fr)
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EP2320781A1 (en
Inventor
Silvio Hamm
Joachim Klemm
André Michaelis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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Publication of EP2320781A1 publication Critical patent/EP2320781A1/en
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Publication of EP2320781B1 publication Critical patent/EP2320781B1/en
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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

Definitions

  • the invention relates to a vacuum cleaner according to the preamble of claim 1.
  • the suction power of a vacuum cleaner depends inter alia on how a dust chamber is designed.
  • the dust chamber is the area in which a dust collector is usually taken.
  • An angled guidance of the suction air flow in the dust chamber can lead to a disadvantageously low suction power, in particular in the case of a complex arrangement and configuration of individual components in the interior of the housing.
  • a canister vacuum cleaner comprising a collecting chamber for absorbing and collecting particles, and a suction-medium receiving chamber, the collecting chamber and the receiving chamber being separated from each other by a partition wall, and the partition wall having an air-flow inlet from the collecting chamber to the suction means having.
  • the dividing wall has, as an inlet opening for coupling the collecting chamber to the suction means of the receiving chamber, an air-conducting funnel tapering in the direction of the suction means, whose inlet face forms the essential part of the dividing wall surface.
  • an engagement protection element is provided, which projects in the direction of the collection chamber. Due to the fact that the partition wall has an air-conducting funnel as an inlet opening, an excessive pressure loss of the airflow from the collecting space to the suction means is largely avoided, which has positive effects on the suction power of the vacuum cleaner.
  • the French patent application FR 2 746 289 describes a vacuum cleaner with an acting as a cover for a dust collector housing upper part, which is hinged to the body of the device by means of a hinge.
  • the cover has a plurality of inner ribs that extend longitudinally and channels for the Form airflow.
  • An engine-blower unit is separated from the dust collector by a partition wall.
  • the partition is double-walled and has holes in both walls.
  • the walls of the partition wall carry ribs whose position corresponds to the ribs in the dust collector, and a secondary dust filter is housed between the walls of the partition wall.
  • the invention has for its object to provide a vacuum cleaner, the suction power is improved even with a compact design.
  • a vacuum cleaner comprises at least one dust chamber for receiving a dust collection container and at least one receiving chamber for an air conveyor unit with a suction, wherein the dust chamber and the receiving chamber are separated by a partition, and wherein the partition wall an outlet for an air flow from the dust chamber to the air conveyor unit having.
  • at least one bead is arranged, wherein the at least one bead is aligned along a main flow direction on the dividing wall.
  • the flow resistance of the air stream is thus lowered. Due to the air leakage, turbulences, which can negatively influence the air flow, are largely prevented.
  • the partition is expediently stiffened by the bead assembly additionally. This leads favorably to a greater stability of the partition and still brings a material cost savings with it.
  • not only a single bead is arranged on the partition wall, but an arrangement of a plurality of mutually parallel beads, which are preferably arranged in a remote from a bottom plate upper portion of the partition wall.
  • the beads may be arranged substantially parallel to the bottom plate and have a substantially equal length.
  • a lengthwise staggered arrangement can have a favorable effect on the air-guiding function.
  • the beads have a depth of at least about 2mm and at most about 5mm and are spaced apart by at least about 1cm. It has proven to be favorable to install an air guide structure of a total of five beads on the dividing wall.
  • the dividing wall can have as an inlet opening for coupling the dust chamber to the suction means of the receiving chamber in the direction of the suction means tapered Heilleittrichter whose inlet surface forms the essential part of the partition wall surface, wherein the beads are at least partially disposed in the air guide funnel.
  • the beads are arranged in the air guide funnel and end shortly before the intake opening, which has a particularly favorable steering of the air flow on the partition wall in the direction of the suction result.
  • a cooling device can be provided for cooling at least one electronic component, which are in operative connection with cooling ribs on the partition wall.
  • a cooling device for an electronic component of the fan motor is in the form of a triac cooling (Triode Alternative Current Switch) by means of an electronic component with a semiconductor layer structure in the patent DE 43 10 747 C2 proposed.
  • Triac cooling secondary or cooling air is passed through a triac and the heated air is returned to the blower via the air guide funnel.
  • the cooling fins are arranged on a dust chamber facing the side of the partition and serve to cool the air flow through the rib structure and for targeted steering of the air flow along the Beerleittrichters to the intake.
  • the cooling ribs can preferably be arranged in a region near the bottom plate and substantially parallel to the beads.
  • FIG. 1 is a perspective view of a vacuum cleaner 10 with a dust chamber 11 for receiving a dust collection container, not shown, and with a receiving chamber 12 for an air conveyor unit 13 is shown.
  • a blower, a fan, a turbine, etc. may be provided.
  • Fig. 2 shows a sectional view according to Fig. 1 , The dust chamber 11 and the receiving chamber 12 are separated by a partition wall 14.
  • the partition wall 14 has an outlet opening 18 for an air flow from the dust chamber 11 to the air conveying unit 13.
  • the dust chamber 11 can be opened via a dust chamber lid.
  • the vacuum cleaner 10 is shown without dust chamber lid.
  • Air is drawn through an intake opening 15 out of the dust chamber 11 via the air conveying unit 13 designed as a fan.
  • the sucked air enters from a nozzle via an air inlet opening, not shown, in the dust chamber 11.
  • the dust chamber 11 is thus subjected to negative pressure and is traversed by a purified air flow, which is transported along a main flow direction 22 on the partition wall 14 via the outlet opening 18 to the arranged in the receiving chamber 12 air conveyor unit 13.
  • the partition 14 has as an outlet opening for coupling the dust chamber 11 to the air conveying unit 13 of the receiving chamber 12 in the direction of the air conveyor unit 13 tapered Heilleittrichter 18, the inlet surface forms the essential part of the surface of the partition 14.
  • An outer contour of the entry surface of the Luftleittrichters 18 is marked with a line 23.
  • the entrance surface of the Heilleittrichters 18 at least 50%, preferably between 70 and 80% of the total area of the partition 14 a. As a result of this large-area inlet surface, a pressure drop of the air flow during suction into the air conveying unit 13 in the receiving chamber 12 is largely avoided.
  • the Heilleittrichter 18 causes by its tapered in the direction of the air conveyor unit 13 form a homogeneous transition for the air flow from the dust chamber 11 to the suction port 15 of the Lucasleittrichters 18 coupled suction means of the air conveyor unit 13 through the dust chamber 11 facing expansion of the Heilleittrichters 18th the intake air flow is opposed to a lower air resistance, as if the intake opening in the partition wall 14 would be formed only circular. As a result, largely air turbulences are prevented back into the dust chamber 11 by the air guide funnel 18.
  • the funnel base is not centrally located on the partition wall 14, but slightly offset in a lateral region of the partition wall 14.
  • the air duct hopper 18 has in its funnel base an engagement protection element 24, which is formed by a dome-shaped rib body.
  • the engagement protection element 24 has gaps for largely unimpeded passage of the air flow from the dust chamber 11 to the air conveying unit 13. The engagement protection element 24 can thus flow behind the entire surface become. With the engagement protection element 24, a risk of injury from rotating fan blades of the air delivery unit 13 is avoided.
  • At least one bead 16 is arranged, wherein the at least one bead 16 is aligned along a main flow direction 22 on the partition wall 14.
  • An arrangement of a total of five beads 16 arranged parallel to one another is provided, which are arranged in an upper region of the dividing wall 14 facing away from a bottom plate 17 of the dust chamber 11.
  • the bead contour 16 is arranged offset laterally on a side of the partition 14 opposite the intake opening 15.
  • the beads 16 are arranged substantially parallel to the bottom plate 17.
  • the beads 16 have a substantially equal length and are offset from each other, adapted to the curvature of the Lucasleittrichters 18.
  • the beads 16 have a depth of at least about 2mm and at most about 5mm and are spaced at a distance of at least about 1cm from each other ,
  • the beads 16 are arranged in the outlet opening formed as an air-guiding funnel 18 and terminate shortly before the suction opening 15 of the air-conveying unit 13.
  • a triac cooling device 20 is provided in the region of a passage opening 25 of the partition wall 14, which is in operative connection with cooling fins 21 on the partition wall 14.
  • the cooling ribs 21 are arranged in a region near the bottom plate and substantially parallel to the beads 16.

Landscapes

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

Description

Die Erfindung betrifft einen Staubsauger nach dem Oberbegriff des Anspruchs 1.The invention relates to a vacuum cleaner according to the preamble of claim 1.

Die Saugleistung eines Staubsaugers hängt unter anderem davon ab, wie ein Staubraum ausgestaltet ist. Der Staubraum ist jener Bereich, in dem üblicherweise ein Staubsammelbehälter aufgenommen wird. Eine verwinkelte Führung des Saugluftstroms im Staubraum kann insbesondere bei einer komplexen Anordnung und Ausgestaltung einzelner Bauteile im Inneren des Gehäuses zu einer nachteiligen niedrigen Saugleistung führen.The suction power of a vacuum cleaner depends inter alia on how a dust chamber is designed. The dust chamber is the area in which a dust collector is usually taken. An angled guidance of the suction air flow in the dust chamber can lead to a disadvantageously low suction power, in particular in the case of a complex arrangement and configuration of individual components in the interior of the housing.

Nach dem Stand der Technik sind verschiedene Lösungsvorschläge bekannt, die eine Lenkung der Luftströmung im Inneren des Staubraums im Hinblick auf eine Optimierung der Saugleistung von Staubsaugern zur Aufgabe haben. In der deutschen Patentschrift DE 101 48 509 B4 ist ein Bodenstaubsauger vorgeschlagen, der eine Sammelkammer zum Aufsaugen und Ansammeln von Partikeln sowie eine Aufnahmekammer für ein Saugmittel umfasst, wobei die Sammelkammer und die Aufnahmekammer durch eine Trennwand voneinander separiert sind, und wobei die Trennwand eine Eintrittsöffnung für einen Luftstrom von der Sammelkammer zu dem Saugmittel aufweist. Es wird vorgeschlagen, dass die Trennwand als Eintrittsöffnung zur Ankopplung der Sammelkammer an das Saugmittel der Aufnahmekammer einen sich in Richtung auf das Saugmittel verjüngenden Luftleittrichter aufweist, dessen Eintrittsfläche den wesentlichen Teil der Trennwandfläche bildet. In dem Trichtergrund ist ein Eingriffschutzelement vorgesehen, das in Richtung auf die Sammelkammer absteht. Dadurch, dass die Trennwand als Eintrittsöffnung einen Luftleittrichter aufweist, wird ein zu großer Druckverlust des Luftstroms vom Sammelraum zum Saugmittel weitgehend vermieden, was positive Auswirkungen auf die Saugleistung des Staubsaugers mit sich bringt.According to the prior art, various solutions are known, which have a steering of the air flow in the interior of the dust chamber with a view to optimizing the suction power of vacuum cleaners to the task. In the German patent DE 101 48 509 B4 For example, there is proposed a canister vacuum cleaner comprising a collecting chamber for absorbing and collecting particles, and a suction-medium receiving chamber, the collecting chamber and the receiving chamber being separated from each other by a partition wall, and the partition wall having an air-flow inlet from the collecting chamber to the suction means having. It is proposed that the dividing wall has, as an inlet opening for coupling the collecting chamber to the suction means of the receiving chamber, an air-conducting funnel tapering in the direction of the suction means, whose inlet face forms the essential part of the dividing wall surface. In the funnel base an engagement protection element is provided, which projects in the direction of the collection chamber. Due to the fact that the partition wall has an air-conducting funnel as an inlet opening, an excessive pressure loss of the airflow from the collecting space to the suction means is largely avoided, which has positive effects on the suction power of the vacuum cleaner.

Die französische Patentanmeldung FR 2 746 289 beschreibt einen Staubsauger mit einem als Abdeckung für einen Staubsammelbehälter wirkenden Gehäuseoberteil, welches an dem Körper des Gerätes mittels eines Scharniers angelenkt ist. Die Abdeckung hat mehrere innere Rippen, die in Längsrichtung verlaufen und Kanäle für den Luftstrom bilden. Eine Motor-Gebläse-Einheit ist von dem Staubsammelbehälter durch eine Trennwand getrennt. Die Trennwand ist doppelwandig und hat Löcher in beiden Wänden. Die Wände der Trennwand tragen Rippen, deren Position den Rippen im Staubabscheider entspricht, und ein sekundärer Staubfilter ist zwischen den Wänden der Trennwand untergebracht.The French patent application FR 2 746 289 describes a vacuum cleaner with an acting as a cover for a dust collector housing upper part, which is hinged to the body of the device by means of a hinge. The cover has a plurality of inner ribs that extend longitudinally and channels for the Form airflow. An engine-blower unit is separated from the dust collector by a partition wall. The partition is double-walled and has holes in both walls. The walls of the partition wall carry ribs whose position corresponds to the ribs in the dust collector, and a secondary dust filter is housed between the walls of the partition wall.

Der Erfindung liegt die Aufgabe zugrunde, einen Staubsauger bereitzustellen, dessen Saugleistung selbst bei kompakter Bauweise verbessert ist.The invention has for its object to provide a vacuum cleaner, the suction power is improved even with a compact design.

Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Hauptanspruchs gelöst.This object is achieved with the features of the main claim.

Ein erfindungsgemäßen Staubsauger umfasst mindestens einen Staubraum zur Aufnahme eines Staubsammelbehälters sowie mindestens eine Aufnahmekammer für eine Luftfördereinheit mit einer Ansaugöffnung, wobei der Staubraum und die Aufnahmekammer durch eine Trennwand voneinander getrennt sind, und wobei die Trennwand eine Austrittsöffnung für einen Luftstrom aus dem Staubraum zu der Luftfördereinheit aufweist. Zum gezielten Lenken des Luftstroms entlang der Trennwand in Richtung zur Ansaugöffnung ist wenigstens eine Sicke angeordnet, wobei die wenigstens eine Sicke entlang einer Hauptströmungsrichtung an der Trennwand ausgerichtet ist. Vorteilhafterweise wird somit der Strömungswiderstand des Luftstroms abgesenkt. Durch die Luftleitsicken werden Verwirbelungen, welche die Luftströmung negativ beeinflussen können, weitgehend verhindert. Insgesamt lässt sich verbessert ein gerichteter Luftstrom durch die Lufteintrittsöffnung zu der Luftfördereinheit bereitstellen, wodurch eine erhöhte Saugleistung des Staubsaugers erzielt werden kann. Hinzu kommt, dass die Trennwand zweckmäßigerweise durch die Sickenanordnung zusätzlich versteift wird. Dies führt günstigerweise zu einer größeren Stabilität der Trennwand und bringt noch dazu eine Materialkosteneinsparung mit sich.A vacuum cleaner according to the invention comprises at least one dust chamber for receiving a dust collection container and at least one receiving chamber for an air conveyor unit with a suction, wherein the dust chamber and the receiving chamber are separated by a partition, and wherein the partition wall an outlet for an air flow from the dust chamber to the air conveyor unit having. For selectively directing the air flow along the dividing wall in the direction of the intake opening, at least one bead is arranged, wherein the at least one bead is aligned along a main flow direction on the dividing wall. Advantageously, the flow resistance of the air stream is thus lowered. Due to the air leakage, turbulences, which can negatively influence the air flow, are largely prevented. Overall, it is better to provide a directed air flow through the air inlet opening to the air conveyor unit, whereby an increased suction power of the vacuum cleaner can be achieved. In addition, the partition is expediently stiffened by the bead assembly additionally. This leads favorably to a greater stability of the partition and still brings a material cost savings with it.

In einer bevorzugten Ausführungsform ist nicht nur eine einzelne Sicke auf der Trennwand angeordnet, sondern eine Anordnung aus mehreren parallel zueinander angeordneten Sicken, welche bevorzugt in einem von einer Bodenplatte abgewandten oberen Bereich der Trennwand angeordnet sind. Die Sicken können im Wesentlichen parallel zu der Bodenplatte angeordnet sein und im Wesentlichen eine gleiche Länge aufweisen. Eine längenmäßig voneinander versetzte Anordnung kann sich günstig auf die Luftleitfunktion auswirken. Die Sicken weisen eine Tiefe von mindestens etwa 2mm und höchstens etwa 5mm aufweisen und sind in einem Abstand von mindestens etwa 1cm voneinander angeordnet. Es hat sich als günstig herausgestellt, eine Luftleitsickenstruktur von insgesamt fünf Sicken auf der Trennwand anzubringen.In a preferred embodiment, not only a single bead is arranged on the partition wall, but an arrangement of a plurality of mutually parallel beads, which are preferably arranged in a remote from a bottom plate upper portion of the partition wall. The beads may be arranged substantially parallel to the bottom plate and have a substantially equal length. A lengthwise staggered arrangement can have a favorable effect on the air-guiding function. The beads have a depth of at least about 2mm and at most about 5mm and are spaced apart by at least about 1cm. It has proven to be favorable to install an air guide structure of a total of five beads on the dividing wall.

In einer besonders bevorzugten Variante kann die Trennwand als Eintrittsöffnung zur Ankopplung des Staubraums an das Saugmittel der Aufnahmekammer einen sich in Richtung auf das Saugmittel verjüngenden Luftleittrichter aufweisen, dessen Eintrittsfläche den wesentlichen Teil der Trennwandfläche bildet, wobei die Sicken wenigstens bereichsweise in dem Luftleittrichter angeordnet sind. Besonders bevorzugt sind die Sicken in dem Luftleittrichter angeordnet und enden kurz vor der Ansaugöffnung, was eine besonders günstige Lenkung des Luftstroms an der Trennwand in Richtung zur Ansaugöffnung zur Folge hat.In a particularly preferred variant, the dividing wall can have as an inlet opening for coupling the dust chamber to the suction means of the receiving chamber in the direction of the suction means tapered Luftleittrichter whose inlet surface forms the essential part of the partition wall surface, wherein the beads are at least partially disposed in the air guide funnel. Particularly preferably, the beads are arranged in the air guide funnel and end shortly before the intake opening, which has a particularly favorable steering of the air flow on the partition wall in the direction of the suction result.

In einer vorteilhaften Weiterbildung kann zur Kühlung wenigstens eines elektronischen Bauteils eine Kühlvorrichtung vorgesehen sein, die mit Kühlrippen auf der Trennwand in Wirkverbindung stehen. Eine derartige Kühlvorrichtung für eine elektronische Komponente des Gebläsemotors ist in Form einer Triac-Kühlung (Triode Alternative Current Switch) mittels eines elektronischen Bauteils mit Halbleiterschichtstruktur in der Patentschrift DE 43 10 747 C2 vorgeschlagen. Bei dieser Triac-Kühlung wird Neben- oder Kühlluft über einen Triac geführt und die erwärmte Luft über den Luftleittrichter wieder dem Gebläse zugeführt. Die Kühlrippen sind auf einer dem Staubraum zugewandten Seite der Trennwand angeordnet und dienen zur Abkühlung des Luftstroms durch die Rippenstruktur sowie zur gezielten Lenkung des Luftstroms entlang des Luftleittrichters zur Ansaugöffnung. Die Kühlrippen können aus konstruktionstechnischen Gründen bevorzugt in einem bodenplattennahen Bereich und im Wesentlichen parallel zu den Sicken angeordnet sein.In an advantageous development, a cooling device can be provided for cooling at least one electronic component, which are in operative connection with cooling ribs on the partition wall. Such a cooling device for an electronic component of the fan motor is in the form of a triac cooling (Triode Alternative Current Switch) by means of an electronic component with a semiconductor layer structure in the patent DE 43 10 747 C2 proposed. In this triac cooling, secondary or cooling air is passed through a triac and the heated air is returned to the blower via the air guide funnel. The cooling fins are arranged on a dust chamber facing the side of the partition and serve to cool the air flow through the rib structure and for targeted steering of the air flow along the Luftleittrichters to the intake. For reasons of design engineering, the cooling ribs can preferably be arranged in a region near the bottom plate and substantially parallel to the beads.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird die Erfindung nachfolgend näher beschrieben. Es zeigt:

Fig. 1
eine perspektivische Darstellung einer bevorzugten Ausführungsform eines Staubsaugers gemäß der Erfindung mit geöffnetem Staubraumdeckel; und
Fig. 2
eine Schnittdarstellung gemäß Fig. 1.
Reference to an embodiment shown in the drawing, the invention will be described in more detail below. It shows:
Fig. 1
a perspective view of a preferred embodiment of a vacuum cleaner according to the invention with the dust chamber lid open; and
Fig. 2
a sectional view according to Fig. 1 ,

In den Figuren werden gleiche oder im Wesentlichen gleich bleibende Elemente mit den gleichen Bezugszeichen versehen.In the figures, the same or substantially the same elements are provided with the same reference numerals.

In Fig. 1 ist eine perspektivische Darstellung eines Staubsaugers 10 mit einem Staubraum 11 zur Aufnahme eines nicht gezeigten Staubsammelbehälters sowie mit einer Aufnahmekammer 12 für eine Luftfördereinheit 13 dargestellt. Als Luftfördereinheit 13 kann ein Gebläse, ein Lüfter, eine Turbine usw. vorgesehen sein. Fig. 2 zeigt eine Schnittdarstellung gemäß Fig. 1. Der Staubraum 11 und die Aufnahmekammer 12 werden durch eine Trennwand 14 getrennt. Die Trennwand 14 weist eine Austrittsöffnung 18 für einen Luftstrom aus dem Staubraum 11 zu der Luftfördereinheit 13 auf. Der Staubraum 11 kann über einen Staubraumdeckel geöffnet werden. In den Figuren ist der Staubsauger 10 jeweils ohne Staubraumdeckel dargestellt.In Fig. 1 is a perspective view of a vacuum cleaner 10 with a dust chamber 11 for receiving a dust collection container, not shown, and with a receiving chamber 12 for an air conveyor unit 13 is shown. As air conveying unit 13, a blower, a fan, a turbine, etc. may be provided. Fig. 2 shows a sectional view according to Fig. 1 , The dust chamber 11 and the receiving chamber 12 are separated by a partition wall 14. The partition wall 14 has an outlet opening 18 for an air flow from the dust chamber 11 to the air conveying unit 13. The dust chamber 11 can be opened via a dust chamber lid. In the figures, the vacuum cleaner 10 is shown without dust chamber lid.

Über die als Gebläse ausgebildete Luftfördereinheit 13 wird Luft durch eine Ansaugöffnung 15 aus dem Staubraum 11 angesaugt. Die angesaugte Luft tritt von einem Stutzen über eine nicht dargestellte Lufteintrittsöffnung in den Staubraum 11 ein. Der Staubraum 11 ist somit Unterdruck beaufschlagt und wird von einem gereinigten Luftstrom durchströmt ,der entlang einer Hauptströmungsrichtung 22 an der Trennwand 14 über die Austrittsöffnung 18 zu der in der Aufnahmekammer 12 angeordneten Luftfördereinheit 13 transportiert. Die Trennwand 14 weist als Austrittsöffnung zur Ankopplung des Staubraums 11 an die Luftfördereinheit 13 der Aufnahmekammer 12 einen sich in Richtung auf die Luftfördereinheit 13 verjüngenden Luftleittrichter 18 auf, dessen Eintrittsfläche den wesentlichen Teil der Oberfläche der Trennwand 14 bildet. Eine Außenkontur der Eintrittsfläche des Luftleittrichters 18 ist mit einer Linie 23 gekennzeichnet. Vorzugsweise nimmt die Eintrittsfläche des Luftleittrichters 18 mindestens 50%, bevorzugt zwischen 70 und 80% der Gesamtfläche der Trennwand 14 ein. Durch diese großflächige Eintrittsfläche wird ein Druckabfall des Luftstroms beim Ansaugen in die Luftfördereinheit 13 in der Aufnahmekammer 12 weitgehend vermieden. Der Luftleittrichter 18 bewirkt dabei durch seine sich in Richtung auf die Luftfördereinheit 13 verjüngende Form einen homogenen Übergang für den Luftstrom vom Staubraum 11 zu den an der Ansaugöffnung 15 des Luftleittrichters 18 angekoppelten Saugmitteln der Luftfördereinheit 13. Durch die zum Staubraum 11 gewandte Ausweitung des Luftleittrichters 18 wird der angesaugten Luftströmung ein geringerer Luftwiderstand entgegengesetzt, wie wenn die Ansaugöffnung in der Trennwand 14 lediglich kreisrund ausgebildet wäre. Dadurch werden durch den Luftleittrichter 18 auch weitgehend Luftverwirbelungen zurück in den Staubraum 11 vermieden.Air is drawn through an intake opening 15 out of the dust chamber 11 via the air conveying unit 13 designed as a fan. The sucked air enters from a nozzle via an air inlet opening, not shown, in the dust chamber 11. The dust chamber 11 is thus subjected to negative pressure and is traversed by a purified air flow, which is transported along a main flow direction 22 on the partition wall 14 via the outlet opening 18 to the arranged in the receiving chamber 12 air conveyor unit 13. The partition 14 has as an outlet opening for coupling the dust chamber 11 to the air conveying unit 13 of the receiving chamber 12 in the direction of the air conveyor unit 13 tapered Luftleittrichter 18, the inlet surface forms the essential part of the surface of the partition 14. An outer contour of the entry surface of the Luftleittrichters 18 is marked with a line 23. Preferably, the entrance surface of the Luftleittrichters 18 at least 50%, preferably between 70 and 80% of the total area of the partition 14 a. As a result of this large-area inlet surface, a pressure drop of the air flow during suction into the air conveying unit 13 in the receiving chamber 12 is largely avoided. The Luftleittrichter 18 causes by its tapered in the direction of the air conveyor unit 13 form a homogeneous transition for the air flow from the dust chamber 11 to the suction port 15 of the Luftleittrichters 18 coupled suction means of the air conveyor unit 13 through the dust chamber 11 facing expansion of the Luftleittrichters 18th the intake air flow is opposed to a lower air resistance, as if the intake opening in the partition wall 14 would be formed only circular. As a result, largely air turbulences are prevented back into the dust chamber 11 by the air guide funnel 18.

Der Trichtergrund ist nicht mittig auf der Trennwand 14 angeordnet, sondern leicht versetzt in einem seitlichen Bereich der Trennwand 14. Der Luftleittrichter 18 weist in seinem Trichtergrund ein Eingriffschutzelement 24 auf, das durch einen domförmigen Rippenkörper gebildet ist. Das Eingriffschutzelement 24 weist Lücken zur weitgehend ungehinderten Hindurchführung des Luftstroms von der Staubkammer 11 zu der Luftfördereinheit 13 auf. Das Eingriffschutzelement 24 kann somit vollflächig hinterströmt werden. Mit dem Eingriffschutzelement 24 wird eine Verletzungsgefahr durch rotierende Gebläseblätter der Luftfördereinheit 13 vermieden.The funnel base is not centrally located on the partition wall 14, but slightly offset in a lateral region of the partition wall 14. The air duct hopper 18 has in its funnel base an engagement protection element 24, which is formed by a dome-shaped rib body. The engagement protection element 24 has gaps for largely unimpeded passage of the air flow from the dust chamber 11 to the air conveying unit 13. The engagement protection element 24 can thus flow behind the entire surface become. With the engagement protection element 24, a risk of injury from rotating fan blades of the air delivery unit 13 is avoided.

Zum gezielten Lenken des Luftstroms entlang der Trennwand 14 in Richtung zur Ansaugöffnung 15 ist wenigstens eine Sicke 16 angeordnet, wobei die wenigstens eine Sicke 16 entlang einer Hauptströmungsrichtung 22 an der Trennwand 14 ausgerichtet ist. Es ist eine Anordnung von insgesamt fünf parallel zueinander angeordneten Sicken 16 vorgesehen, welche in einem von einer Bodenplatte 17 des Staubraums 11 abgewandten oberen Bereich der Trennwand 14 angeordnet sind. Die Sickenkontur 16 ist seitlich versetzt auf einer der Ansaugöffnung 15 gegenüberliegenden Seite der Trennwand 14 angeordnet. Die Sicken 16 sind im Wesentlichen parallel zu der Bodenplatte 17 angeordnet. Die Sicken 16 weisen eine im Wesentlichen gleich Länge auf und sind versetzt zueinander angeordnet, angepasst an die Wölbung des Luftleittrichters 18. Die Sicken 16 weisen eine Tiefe von mindestens etwa 2mm und höchstens etwa 5mm auf und sind in einem Abstand von mindestens etwa 1cm voneinander angeordnet. Die Sicken 16 sind in der als Luftleittrichter 18 ausgebildeten Austrittsöffnung angeordnet und enden kurz vor der Ansaugöffnung 15 der Luftfördereinheit 13.For targeted steering of the air flow along the partition wall 14 in the direction of the suction opening 15 at least one bead 16 is arranged, wherein the at least one bead 16 is aligned along a main flow direction 22 on the partition wall 14. An arrangement of a total of five beads 16 arranged parallel to one another is provided, which are arranged in an upper region of the dividing wall 14 facing away from a bottom plate 17 of the dust chamber 11. The bead contour 16 is arranged offset laterally on a side of the partition 14 opposite the intake opening 15. The beads 16 are arranged substantially parallel to the bottom plate 17. The beads 16 have a substantially equal length and are offset from each other, adapted to the curvature of the Luftleittrichters 18. The beads 16 have a depth of at least about 2mm and at most about 5mm and are spaced at a distance of at least about 1cm from each other , The beads 16 are arranged in the outlet opening formed as an air-guiding funnel 18 and terminate shortly before the suction opening 15 of the air-conveying unit 13.

Zur Kühlung wenigstens eines Halbleiterschaltelements 19 ist im Bereich einer Durchtrittsöffnung 25 der Trennwand 14 eine Triac-Kühlvorrichtung 20 vorgesehen, die mit Kühlrippen 21 auf der Trennwand 14 in Wirkverbindung steht. Die Kühlrippen 21 sind in einem bodenplattennahen Bereich und im Wesentlichen parallel zu den Sicken 16 angeordnet.For cooling at least one semiconductor switching element 19, a triac cooling device 20 is provided in the region of a passage opening 25 of the partition wall 14, which is in operative connection with cooling fins 21 on the partition wall 14. The cooling ribs 21 are arranged in a region near the bottom plate and substantially parallel to the beads 16.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Staubsaugervacuum cleaner
1111
Staubraumdust chamber
1212
Aufnahmekammerreceiving chamber
1313
LuftfördereinheitAir handling unit
1414
Trennwandpartition wall
1515
Ansaugöffnungsuction
1616
SickeBeading
1717
Bodenplattebaseplate
1818
Lufttrichterventuri
1919
elektronisches Bauteilelectronic component
2020
Kühlvorrichtungcooler
2121
Kühlrippencooling fins
2222
HauptströmungsrichtungMain flow direction
2323
Außenkonturouter contour
2424
EingriffschutzelementEingriffschutz element
2525
DurchtrittsöffnungThrough opening

Claims (8)

  1. Vacuum cleaner with at least one dust chamber (11) for accommodating a dust collection container and also with at least one receiving chamber (12) for an air conveying unit (13) with a suction opening (15), with the dust chamber (11) and the receiving chamber (12) being separated from one another by a partition wall (14), and with the partition wall (14) having an outlet opening (18) for an air flow from the dust chamber (11) to the air conveying unit (13), characterised in that, for explicit guidance of the air flow along the partition wall (14) and by way of the outlet opening (18) towards the suction opening (15) along the partition wall (14), at least one rib (16) is arranged, with the at least one rib (16) being aligned along a main flow direction (22) on the partition wall (14).
  2. Vacuum cleaner according to claim 1, characterised in that an arrangement of a number of ribs (16) arranged in parallel to one another is provided, which are arranged in an upper area of the partition wall (14) facing away from a base plate (17).
  3. Vacuum cleaner according to claim 1 or 2, characterised in that the ribs (16) are arranged substantially in parallel to the base plate (17).
  4. Vacuum cleaner according to one of the preceding claims, characterised in that the ribs (16) are embodied with substantially the same length and are arranged offset to one another.
  5. Vacuum cleaner according to one of the preceding claims, characterised in that the ribs (16) have a depth of at least around 2 mm and most around 5 mm and are arranged at a distance of at least around 1 cm from one another.
  6. Vacuum cleaner according to one of the preceding claims, characterised in that the partition wall (14), as the outlet opening for coupling the dust chamber (11) to the air conveying unit (13) of the receiving chamber (12), has an air guide funnel (18) narrowing towards the air conveying unit (13), the inlet surface of which forms the major part of the surface of the partition wall (14), with the ribs (16) being arranged at least partly in the air guide funnel (18) and ending shortly before the suction opening (15).
  7. Vacuum cleaner according to one of the preceding claims, characterised in that a cooling facility (20), which is actively connected to cooling fins (21) on the partition wall (14), is provided for cooling at least one electronic component (19).
  8. Vacuum cleaner according to claim 7, characterised in that the cooling fins (21) are arranged in an area close to the base plate and substantially in parallel to the ribs (16).
EP09781385.1A 2008-08-13 2009-08-03 Vacuum cleaner Not-in-force EP2320781B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008041228A DE102008041228A1 (en) 2008-08-13 2008-08-13 vacuum cleaner
PCT/EP2009/059987 WO2010018086A1 (en) 2008-08-13 2009-08-03 Vacuum cleaner

Publications (2)

Publication Number Publication Date
EP2320781A1 EP2320781A1 (en) 2011-05-18
EP2320781B1 true EP2320781B1 (en) 2013-11-27

Family

ID=41210443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09781385.1A Not-in-force EP2320781B1 (en) 2008-08-13 2009-08-03 Vacuum cleaner

Country Status (5)

Country Link
EP (1) EP2320781B1 (en)
CN (1) CN102123644A (en)
DE (1) DE102008041228A1 (en)
RU (1) RU2472420C2 (en)
WO (1) WO2010018086A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012207348A1 (en) * 2012-05-03 2013-11-07 BSH Bosch und Siemens Hausgeräte GmbH vacuum cleaner
ES2904692T3 (en) 2017-01-31 2022-04-05 Eurofilters Holding Nv floor vacuum cleaner
CN212465864U (en) * 2020-04-30 2021-02-05 追创科技(苏州)有限公司 Self-moving cleaning equipment and cleaning system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA600452A (en) * 1960-06-21 J. Faith-Ell Lars Horizontal tank-type suction cleaner
US3233392A (en) * 1962-02-02 1966-02-08 Electrolux Ab Suction cleaner
FR2517950A1 (en) * 1981-12-15 1983-06-17 Hoover Ltd VACUUM
US4527302A (en) * 1983-11-21 1985-07-09 The Hoover Company Canister cleaner
DE9321088U1 (en) * 1993-04-01 1996-01-04 Siemens AG, 80333 München Vacuum cleaner with a suction fan
DE4310747C2 (en) 1993-04-01 1997-08-28 Bosch Siemens Hausgeraete Vacuum cleaner with a suction fan
FR2746289A1 (en) 1996-03-21 1997-09-26 Carre Francois Domestic vacuum cleaner with improved air flow and dust collection
US6006401A (en) * 1997-01-22 1999-12-28 Bissell Homecare, Inc. Vacuum cleaner having a handle release thereon
US5863309A (en) * 1997-06-09 1999-01-26 Hoover Co Hard bag door with air directing arrangement
DE19801444B4 (en) * 1998-01-16 2007-07-26 BSH Bosch und Siemens Hausgeräte GmbH vacuum cleaner
DE20122492U1 (en) 2001-10-01 2005-12-08 BSH Bosch und Siemens Hausgeräte GmbH Device for sucking in particles for collection has dividing wall with air guide funnel forming inlet opening for coupling collection chamber to suction arrangement in accommodation chamber
EP1407703A2 (en) * 2002-10-07 2004-04-14 Miele & Cie. KG Air duct arrangement in suction cleaner head
DE10336828B4 (en) * 2003-08-11 2013-04-18 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner with exhaust air flow channels
DE102004004860B4 (en) * 2004-01-30 2007-08-02 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner with a cable storage compartment
KR20060037980A (en) * 2004-10-29 2006-05-03 엘지전자 주식회사 Body for vacuum cleaner
EP1836941B1 (en) * 2006-03-14 2014-02-12 Toshiba TEC Kabushiki Kaisha Electric vacuum cleaner

Also Published As

Publication number Publication date
RU2472420C2 (en) 2013-01-20
CN102123644A (en) 2011-07-13
RU2011108047A (en) 2012-09-20
DE102008041228A1 (en) 2010-02-18
WO2010018086A1 (en) 2010-02-18
EP2320781A1 (en) 2011-05-18

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