EP2078485B1 - Vacuum cleaner with a room to accept a motor fan - Google Patents

Vacuum cleaner with a room to accept a motor fan Download PDF

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Publication number
EP2078485B1
EP2078485B1 EP20080021513 EP08021513A EP2078485B1 EP 2078485 B1 EP2078485 B1 EP 2078485B1 EP 20080021513 EP20080021513 EP 20080021513 EP 08021513 A EP08021513 A EP 08021513A EP 2078485 B1 EP2078485 B1 EP 2078485B1
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EP
European Patent Office
Prior art keywords
vacuum cleaner
wall portion
housing part
wall
edge
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.)
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Application number
EP20080021513
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German (de)
French (fr)
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EP2078485A3 (en
EP2078485A2 (en
Inventor
Sandra Dyck
Arne Sauerland
Markus Thamm
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Miele und Cie KG
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Miele und Cie KG
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Publication of EP2078485A2 publication Critical patent/EP2078485A2/en
Publication of EP2078485A3 publication Critical patent/EP2078485A3/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
    • A47L9/22—Mountings for motor fan assemblies
    • 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
    • A47L5/362—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the horizontal type, e.g. canister or sledge 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

Definitions

  • the invention relates to a vacuum cleaner with a housing, comprising two housing parts, which include a space for receiving a motor fan after assembly, which includes a substantially extending in the joining wall portion, wherein the wall portion is formed of two wall sections having a circumferentially closed contour and overlap in the joined state of the housing parts at their edge regions with a press fit and without interposition of a seal, and wherein a wall portion is disposed on each of the housing parts.
  • Such a vacuum cleaner is for example from the WO 20051016107 A1 known.
  • the space that receives the motor fan is usually equipped with a first opening, which is associated with the suction side of the fan. To avoid Saugkraftmaschinee, the opening is usually sealed against the suction port of the blower.
  • a second opening in the engine fan room serves to blow the air generated by the blower into the environment of the vacuum cleaner.
  • an exhaust filter can be arranged.
  • the fan In order for the fan to be placed in the engine fan room during the assembly process, it must consist of at least two parts. The interface between these parts must be hermetically sealed after assembly, so that no exhaust air escapes at undesirable points to the outside and thus bypasses the exhaust filter.
  • the invention thus presents the problem of disclosing a vacuum cleaner of the type mentioned, in which a great inherent stability is achieved in the region of the engine fan room.
  • the wall portion is formed of two wall portions having a circumferentially closed contour and overlap in the assembled state of the housing parts at their edge regions with interference fit and without interposition of a seal, wherein on each of the housing parts a wall portion is arranged, and that the wall portions have a circular or oval cross-section.
  • one of the wall sections is designed such that the cross-sectional area which it encloses increases in the direction of the edge assigned to the overlap region.
  • the enlargement of the cross-sectional area is achieved in a simple and expedient manner either by virtue of the fact that the wall section is frusto-conical or by the thickness of the wall section decreasing in the direction of the edge assigned to the overlapping area.
  • a further simplification in the joining of the two housing parts is achieved in that the other wall portion is formed such that reduces its outer periphery in the direction of the overlap region associated edge. The conical connection created in this way produces a particularly good sealing seat.
  • the housing part can be made in one piece with the wall portion made of plastic. As a result, both the production and the assembly of the housing parts is simplified.
  • the lead-through region of a blower motor connecting cable can be used as a recess in a wall section Cable receptacle formed.
  • the area where the cable passes through the cable receptacle can then be sealed in a pre-assembly step. During the actual assembly then only needs the cable receptacle to be inserted into the recess of the wall portion, then the two housing parts can be joined together.
  • the vacuum cleaner is designed as a vacuum cleaner
  • the housing parts are designed as a lower housing part and upper housing part and when the joining direction extends perpendicular to the main extension direction of the housing base or perpendicular to the driving plane of the vacuum cleaner.
  • the suction side of the motor fan may be directed to the upper housing part.
  • the air outlet for the engine fan can be arranged in the upper housing part.
  • FIG. 2 is an exploded view of the upper housing part 1 and the lower housing part 2 of an in FIG. 1 fully shown vacuum cleaner 100 shown prior to their assembly.
  • the FIG. 2 also shows an enclosed by these two parts 1 and 2 engine fan 3.
  • the housing parts 1 and 2 form after assembly a dust collection chamber 4, in which a not shown in the drawings dust bag can be inserted.
  • the dust collecting chamber 4 is connected via a suction port 5 with the suction side of the engine fan 3 in flow communication.
  • the motor fan 3 itself is mounted between the two housing parts 1 and 2 in an upright position, that is, the suction opening 6 points upward to the upper housing part 1, whereas, on the other hand, the exhaust openings 7 of the blower pot 8 are directed downward.
  • Over rubber buffer 9 in the lower area and a peripheral seal (not shown) around the suction opening 6 in the upper area the fan 3 is held within a motor fan room 10, which is described below with reference to the drawings 2 and 3.
  • FIGS. 3a and b shows the interior view of the two housing parts 1 and 2, in which the space for receiving the engine fan 3 is clearly visible. It is cylindrical, with a circular or oval wall portion and two top surfaces 11 and 12. The lower deck surface is formed by the bottom 13 of the housing base 2 itself, it is enclosed by a round wall portion 14. In the top surface 11 ribs 15 are arranged to increase the stability, further, two dome 16 for receiving the rubber buffer 9 can be seen. In the in the FIG. 3a right side of the wall portion is a recess 17 (see also FIG. 4a , left there) whose function is explained later.
  • the top surface 12 in the upper housing part passes in the center 19 in an intake passage 20, which ends in the intake 5 in the dust collecting space 4.
  • the wall sections 14 and 18 are made in one piece with the housing parts 2 and 1 made of plastic.
  • the wall portion 18 When joining the two housing parts 1 and 2, the wall portion 18 is slipped over the wall portion 14. Due to their dimensions arises in the in FIG. 4 illustrated final mounting position an interference fit between these two parts.
  • the inner diameter of the wall section 18 in the edge region must be smaller than the outer diameter of the wall section 14 at the point 23 against which the edge 22 of the wall section 18 rests.
  • they are designed so that a conical connection is produced.
  • their wall thickness decreases in the direction of the edge assigned to the overlapping area.
  • the conical connection ensures that only by the assembly in mounting direction (see arrow 27 in FIG. 2 ) pressure produced the press fit is produced.
  • the wall sections themselves may be frusto-conical.
  • FIG. 5 It can be seen that the recess 17 and thus the contour of the wall portion 14 is closed by an inserted connector receptacle 24 before the assembly of the two housing parts 1 and 2.
  • the insert closes the recess airtight.
  • the plug receptacle 24 is used for airtight passage of connection cables 25 for the device control and the cable drum (both not shown) from the outside of the motor fan room 10 to the fan 3 on the inside.
  • the parked on the connector receptacle 24 connector 26 extends in the mounting direction, so that when placing the motor fan 3 in the lower housing part 2 automatically the electrical connection is made.

Description

Die Erfindung betrifft einen Staubsauger mit einem Gehäuse, umfassend zwei Gehäuseteile, die nach dem Zusammenfügen einen Raum zur Aufnahme eines Motorgebläses einschließen, welcher einen sich im Wesentlichen in Fügerichtung erstreckenden Wandbereich beinhaltet, wobei der Wandbereich aus zwei Wandabschnitten gebildet wird, die eine umlaufend geschlossene Kontur aufweisen und sich im zusammengefügten Zustand der Gehäuseteile an ihren Randbereichen mit Presspassung und ohne Zwischenlage einer Dichtung überlappen, und wobei an jedem der Gehäuseteile ein Wandabschnitt angeordnet ist.The invention relates to a vacuum cleaner with a housing, comprising two housing parts, which include a space for receiving a motor fan after assembly, which includes a substantially extending in the joining wall portion, wherein the wall portion is formed of two wall sections having a circumferentially closed contour and overlap in the joined state of the housing parts at their edge regions with a press fit and without interposition of a seal, and wherein a wall portion is disposed on each of the housing parts.

Ein solcher Staubsauger ist beispielsweise aus der WO 20051016107 A1 bekannt.Such a vacuum cleaner is for example from the WO 20051016107 A1 known.

Der Raum der das Motorgebläse aufnimmt, ist in der Regel mit einer ersten Öffnung ausgestattet, die der Saugseite des Gebläses zugeordnet ist. Um Saugkraftverluste zu vermeiden, ist die Öffnung meist gegenüber der Ansaugöffnung des Gebläses abgedichtet. Eine zweite Öffnung im Motorgebläseraum dient zum Ausblasen der vom Gebläse erzeugten Luft in die Umgebung des Staubsaugers. Vor dieser Öffnung kann ein Abluftfilter angeordnet sein. Damit das Gebläse während des Montagevorgangs in dem Motorgebläseraum platziert werden kann, muss dieser aus mindestens zwei Teilen bestehen. Die Schnittstelle zwischen diesen Teilen muss nach dem Zusammenbau luftdicht abgeschlossen sein, damit keine Abluft an unerwünschten Stellen nach außen tritt und so das Abluftfilter umgeht. Es ist deshalb üblich, an den Verbindungsstellen der einzelnen Wandabschnitte Dichtungen vorzusehen, siehe beispielsweise DE 44 21 215 B4 . Die Montage einer separaten Dichtung ist zeitintensiv und aufwändig. Da sie als biegeschlaffes Teil ausgebildet ist, kann sie nicht definiert von einem Roboter gegriffen und platziert werden; der Montagevorgang kann deshalb nicht automatisiert werden. Das Anspritzen von Dichtungen im Zweikomponenten-Verfahren erfordert hohe Werkzeuginvestitionen und verlängert die Fertigungszeit. Es ist auch schwierig, Anschlusskabel durch den Dichtungsbereich hindurchzuführen.The space that receives the motor fan is usually equipped with a first opening, which is associated with the suction side of the fan. To avoid Saugkraftverluste, the opening is usually sealed against the suction port of the blower. A second opening in the engine fan room serves to blow the air generated by the blower into the environment of the vacuum cleaner. Before this opening, an exhaust filter can be arranged. In order for the fan to be placed in the engine fan room during the assembly process, it must consist of at least two parts. The interface between these parts must be hermetically sealed after assembly, so that no exhaust air escapes at undesirable points to the outside and thus bypasses the exhaust filter. It is therefore customary to provide seals at the junctions of the individual wall sections, see for example DE 44 21 215 B4 , The installation of a separate seal is time consuming and expensive. Since it is designed as a flexible part, it can not be grasped and placed undefined by a robot; the assembly process can therefore not be automated. Injection of gaskets in the two-component process requires high tool investment and extends the production time. It is also difficult to pass connecting cables through the sealing area.

Bei dem Staubsauger gemäß WO 20051016107 A1 wird das Motorgebläse von einer Isolierkapsel umgeben und in einem Gebläseaggregatraum luftdicht abgeschlossen. Dichtungen zwischen einzelnen Wandabschnitten, die den Gebläseaggregatraum bilden, sind nicht erkennbar. Der Raum ist im Wesentlichen quaderförmig ausgebildet.In the vacuum cleaner according to WO 20051016107 A1 The motor fan is surrounded by an insulating capsule and hermetically sealed in a blower unit space. Gaskets between individual wall sections that form the blower unit space are not recognizable. The space is essentially cuboid.

Der Erfindung stellt sich somit das Problem, einen Staubsauger der eingangs genannten Art zu offenbaren, bei dem im Bereich des Motorgebläseraums eine große Eigenstabilität erreicht wird.The invention thus presents the problem of disclosing a vacuum cleaner of the type mentioned, in which a great inherent stability is achieved in the region of the engine fan room.

Erfindungsgemäß wird dieses Problem durch einen Staubsauger mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention this problem is solved by a vacuum cleaner with the features of claim 1. Advantageous embodiments and further developments of the invention will become apparent from the following subclaims.

Die sich aus der Erfindung ergebenden Vorteile werden dadurch erreicht, dass der Wandbereich aus zwei Wandabschnitten gebildet wird, die eine umlaufend geschlossene Kontur aufweisen und sich im zusammengefügten Zustand der Gehäuseteile an ihren Randbereichen mit Presspassung und ohne Zwischenlage einer Dichtung überlappen, wobei an jedem der Gehäuseteile ein Wandabschnitt angeordnet ist, und dass die Wandabschnitte einen kreisförmigen oder ovalen Querschnitt besitzen. Es entsteht eine einfach aufgebaute, preisgünstige, leicht zu fertigende und druckdichte Verbindung der beiden Wandabschnitte des Motorgebläseraums. Durch den Verzicht auf elastische Teile wird ein alterungsbedingtes Nachlassen der Dichtwirkung vermieden. Außerdem wird eine große Eigenstabilität erreicht und somit die notwendige Dichtkraft der Presspassung gewährleistet.The resulting from the invention advantages are achieved in that the wall portion is formed of two wall portions having a circumferentially closed contour and overlap in the assembled state of the housing parts at their edge regions with interference fit and without interposition of a seal, wherein on each of the housing parts a wall portion is arranged, and that the wall portions have a circular or oval cross-section. The result is a simple structure, inexpensive, easy to manufacture and pressure-tight connection of the two wall sections of the engine fan room. By dispensing with elastic parts, an aging-related decrease in the sealing effect is avoided. In addition, a great inherent stability is achieved and thus ensures the necessary sealing force of the press fit.

Es ist auch vorteilhaft, wenn einer der Wandabschnitte derart ausgebildet ist, dass sich die Querschnittsfläche, die er einschließt, in Richtung des dem Überlappungsbereich zugeordneten Rands vergrößert. Durch diese Maßnahme wird das Zusammenfügen der beiden Gehäuseteile mit den Wandabschnitten erleichtert. Die Vergrößerung der Querschnittsfläche wird in einfacher und zweckmäßiger Weise entweder dadurch erreicht, dass der Wandabschnitt kegelstumpfförmig ausgebildet ist, oder dadurch, dass die Stärke des Wandabschnitts in Richtung des dem Überlappungsbereich zugeordneten Rands abnimmt. Eine weitere Vereinfachung beim Zusammenfügen der beiden Gehäuseteile wird dadurch erreicht, dass der andere Wandabschnitt derart ausgebildet ist, dass sich sein Außenumfang in Richtung des dem Überlappungsbereich zugeordneten Rands verringert. Durch die auf diese Weise entstehende Kegelverbindung wird ein besonders guter Dichtsitz erzeugt.It is also advantageous if one of the wall sections is designed such that the cross-sectional area which it encloses increases in the direction of the edge assigned to the overlap region. By this measure, the joining of the two housing parts is facilitated with the wall sections. The enlargement of the cross-sectional area is achieved in a simple and expedient manner either by virtue of the fact that the wall section is frusto-conical or by the thickness of the wall section decreasing in the direction of the edge assigned to the overlapping area. A further simplification in the joining of the two housing parts is achieved in that the other wall portion is formed such that reduces its outer periphery in the direction of the overlap region associated edge. The conical connection created in this way produces a particularly good sealing seat.

Es kann je ein Wandabschnitt an ein Gehäuseteil angeformt sein, insbesondere kann das Gehäuseteil mit dem Wandabschnitt einstückig aus Kunststoff hergestellt sein. Hierdurch wird sowohl die Herstellung als auch die Montage der Gehäuseteile vereinfacht.It can ever be integrally formed on a housing part, a wall portion, in particular, the housing part can be made in one piece with the wall portion made of plastic. As a result, both the production and the assembly of the housing parts is simplified.

In einer besonders vorteilhaften Ausführungsform ist der Durchführungsbereich eines Gebläsemotor-Anschlusskabels als in eine Ausnehmung eines Wandabschnitts einsetzbare Kabelaufnahme ausgebildet. Der Bereich, in dem das Kabel durch die Kabelaufnahme geführt wird, kann dann in einem Vormontageschritt abgedichtet werden. Während der eigentlichen Montage braucht dann nur noch die Kabelaufnahme in die Ausnehmung des Wandabschnitts eingeschoben zu werden, anschließend können die beiden Gehäuseteile zusammengefügt werden.In a particularly advantageous embodiment, the lead-through region of a blower motor connecting cable can be used as a recess in a wall section Cable receptacle formed. The area where the cable passes through the cable receptacle can then be sealed in a pre-assembly step. During the actual assembly then only needs the cable receptacle to be inserted into the recess of the wall portion, then the two housing parts can be joined together.

Wenn der Staubsauger als Bodenstaubsauger ausgebildet ist, ist es zweckmäßig, wenn die Gehäuseteile als Gehäuseunterteil und Gehäuseoberteil ausgebildet sind und wenn sich die Fügerichtung senkrecht zur Hauptausdehnungsrichtung des Gehäuseunterteils bzw. senkrecht zur Fahrebene des Bodenstaubsaugers erstreckt. Dabei kann die Saugseite des Motorgebläses zum Gehäuseoberteil gerichtet sein. Auch der Luftauslass für das Motorgebläse kann im Gehäuseoberteil angeordnet sein.If the vacuum cleaner is designed as a vacuum cleaner, it is expedient if the housing parts are designed as a lower housing part and upper housing part and when the joining direction extends perpendicular to the main extension direction of the housing base or perpendicular to the driving plane of the vacuum cleaner. In this case, the suction side of the motor fan may be directed to the upper housing part. Also, the air outlet for the engine fan can be arranged in the upper housing part.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt

Figur 1
einen Bodenstaubsauger in perspektivischer Darstellung;
Figur 2
Gehäuseteile und das Motorgebläse des Bodenstaubsaugers nach Figur 1 in Explosionsdarstellung;
Figuren 3a, b
die Gehäuseteile gemäß Figur 2 in der Draufsicht von innen;
Figuren 4a, b
Längsschnitte durch die zusammengefügten Wandabschnitte in den jeweiligen Randbereichen des Staubsaugergehäuses;
Figur 5
das Gehäuseunterteil des Bodenstaubsaugers mit eingeschobener Steckeraufnahme.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. It shows
FIG. 1
a vacuum cleaner in perspective view;
FIG. 2
Housing parts and the engine fan of the vacuum cleaner to FIG. 1 in exploded view;
FIGS. 3a, b
the housing parts according to FIG. 2 in the plan view from the inside;
FIGS. 4a, b
Longitudinal sections through the assembled wall sections in the respective edge regions of the vacuum cleaner housing;
FIG. 5
the lower housing part of the vacuum cleaner with inserted plug receptacle.

In Figur 2 ist in einer Explosionsdarstellung das Gehäuseoberteil 1 und das Gehäuseunterteil 2 eines in Figur 1 vollständig gezeigten Bodenstaubsaugers 100 vor ihrem Zusammenbau dargestellt. Die Figur 2 zeigt weiterhin ein von diesen beiden Teilen 1 und 2 eingeschlossenes Motorgebläse 3. Die Gehäuseteile 1 und 2 bilden nach dem Zusammenfügen einen Staubsammelraum 4, in welchen ein in den Zeichnungen nicht dargestellter Staubbeutel eingelegt werden kann. Der Staubsammelraum 4 steht über eine Ansaugöffnung 5 mit der Saugseite des Motorgebläses 3 in Strömungsverbindung. Das Motorgebläse 3 selbst ist zwischen den beiden Gehäuseteilen 1 und 2 in aufrechter Position gelagert, das heißt, die Saugöffnung 6 zeigt nach oben zum Gehäuseoberteil 1, wo hingegen die Ausblasöffnungen 7 des Gebläsetopfes 8 nach unten gerichtet sind. Über Gummipuffer 9 im unteren Bereich und eine umlaufende Dichtung (nicht dargestellt) um die Saugöffnung 6 im oberen Bereich wird das Gebläse 3 innerhalb eines Motorgebläseraums 10 gehalten, der unter Bezugnahme auf die Zeichnungen 2 und 3 nachfolgend beschrieben ist.In FIG. 2 is an exploded view of the upper housing part 1 and the lower housing part 2 of an in FIG. 1 fully shown vacuum cleaner 100 shown prior to their assembly. The FIG. 2 also shows an enclosed by these two parts 1 and 2 engine fan 3. The housing parts 1 and 2 form after assembly a dust collection chamber 4, in which a not shown in the drawings dust bag can be inserted. The dust collecting chamber 4 is connected via a suction port 5 with the suction side of the engine fan 3 in flow communication. The motor fan 3 itself is mounted between the two housing parts 1 and 2 in an upright position, that is, the suction opening 6 points upward to the upper housing part 1, whereas, on the other hand, the exhaust openings 7 of the blower pot 8 are directed downward. Over rubber buffer 9 in the lower area and a peripheral seal (not shown) around the suction opening 6 in the upper area, the fan 3 is held within a motor fan room 10, which is described below with reference to the drawings 2 and 3.

In den Figuren 3a und b ist die Innenansicht der beiden Gehäuseteile 1 und 2 gezeigt, in der der Raum zur Aufnahme des Motorgebläses 3 gut erkennbar ist. Er ist zylindrisch ausgebildet, mit einem kreisrunden oder ovalen Wandbereich und zwei Deckflächen 11 und 12. Die untere Deckfläche wird durch den Boden 13 des Gehäuseunterteils 2 selbst gebildet, sie wird von einem runden Wandabschnitt 14 eingeschlossen. In der Deckfläche 11 sind Rippen 15 zur Erhöhung der Stabilität angeordnet, des Weiteren sind zwei Dome 16 zur Aufnahme der Gummipuffer 9 erkennbar. In der in der Figur 3a rechten Seite des Wandabschnitts ist eine Ausnehmung 17 (siehe auch Figur 4a, dort links) angeordnet, deren Funktion später erklärt ist.In the FIGS. 3a and b shows the interior view of the two housing parts 1 and 2, in which the space for receiving the engine fan 3 is clearly visible. It is cylindrical, with a circular or oval wall portion and two top surfaces 11 and 12. The lower deck surface is formed by the bottom 13 of the housing base 2 itself, it is enclosed by a round wall portion 14. In the top surface 11 ribs 15 are arranged to increase the stability, further, two dome 16 for receiving the rubber buffer 9 can be seen. In the in the FIG. 3a right side of the wall portion is a recess 17 (see also FIG. 4a , left there) whose function is explained later.

An das Gehäuseoberteil 1 ist ebenfalls ein runder Wandabschnitt 18 mit einer umlaufend geschlossenen Kontur angeformt, der zusammen mit dem Wandabschnitt 14 im Gehäuseunterteil 2 den Wandbereich des Motorgebläseraums 10 bildet. Die Deckfläche 12 im Gehäuseoberteil geht im Zentrum 19 in einen Ansaugkanal 20 über, der in der Ansaugöffnung 5 im Staubsammelraum 4 endet. Um den Ansaugkanal 20 herum ist der Luftauslass des Motorgebläseraums 10 in Form von vergitterten Ausblasöffnungen 21 angeordnet. Die Wandabschnitte 14 und 18 sind zusammen mit den Gehäuseteilen 2 und 1 einstückig aus Kunststoff hergestellt.To the upper housing part 1 is also a round wall portion 18 integrally formed with a circumferentially closed contour, which forms the wall portion of the engine fan room 10 together with the wall portion 14 in the lower housing part 2. The top surface 12 in the upper housing part passes in the center 19 in an intake passage 20, which ends in the intake 5 in the dust collecting space 4. Around the intake passage 20 around the air outlet of the Motor fan room 10 in the form of barred exhaust openings 21 arranged. The wall sections 14 and 18 are made in one piece with the housing parts 2 and 1 made of plastic.

Beim Zusammenfügen der beiden Gehäuseteile 1 und 2 wird der Wandabschnitt 18 über den Wandabschnitt 14 gestülpt. Aufgrund ihrer Abmessungen entsteht in der in Figur 4 dargestellten endgültigen Montageposition eine Presspassung zwischen diesen beiden Teilen. Hierzu muss der Innendurchmesser des Wandabschnitts 18 im Randbereich kleiner sein als der Außendurchmesser des Wandabschnitts 14 an der Stelle 23, an der der Rand 22 des Wandabschnitts 18 anliegt. Um das Übereinanderstülpen der Wandabschnitte 14 und 18 zu erleichtern, sind sie so ausgebildet, dass eine Kegelverbindung erzeugt wird. Hierzu nimmt ihre Wandstärke in Richtung des dem Überlappungsbereich zugeordneten Rands ab. Die Kegelverbindung stellt sicher, dass allein durch den beim Zusammenbau in Montagerichtung (siehe Pfeil 27 in Figur 2) erzeugten Druck die Presspassung hergestellt wird. Alternativ zur Verjüngung der Wandstärke können die Wandabschnitte selbst kegelstumpfförmig ausgebildet sein.When joining the two housing parts 1 and 2, the wall portion 18 is slipped over the wall portion 14. Due to their dimensions arises in the in FIG. 4 illustrated final mounting position an interference fit between these two parts. For this purpose, the inner diameter of the wall section 18 in the edge region must be smaller than the outer diameter of the wall section 14 at the point 23 against which the edge 22 of the wall section 18 rests. In order to facilitate the overlapping of the wall sections 14 and 18, they are designed so that a conical connection is produced. For this purpose, their wall thickness decreases in the direction of the edge assigned to the overlapping area. The conical connection ensures that only by the assembly in mounting direction (see arrow 27 in FIG. 2 ) pressure produced the press fit is produced. As an alternative to the taper of the wall thickness, the wall sections themselves may be frusto-conical.

In Figur 5 ist erkennbar, dass die Ausnehmung 17 und damit die Kontur des Wandabschnitts 14 vor dem Zusammenbau der beiden Gehäuseteile 1 und 2 durch eine eingeschobene Steckeraufnahme 24 geschlossen ist. Durch den Einschub wird die Ausnehmung luftdicht abgeschlossen. Die Steckeraufnahme 24 dient zur luftdichten Durchführung von Anschlusskabeln 25 für die Gerätesteuerung und die Kabeltrommel (beide nicht dargestellt) von der Außenseite des Motorgebläseraums 10 zum Gebläse 3 auf der Innenseite. Der an der Steckeraufnahme 24 geparkte Stecker 26 erstreckt sich in Montagerichtung, so dass beim Platzieren des Motorgebläses 3 im Gehäuseunterteil 2 selbsttätig die elektrische Verbindung hergestellt wird.In FIG. 5 It can be seen that the recess 17 and thus the contour of the wall portion 14 is closed by an inserted connector receptacle 24 before the assembly of the two housing parts 1 and 2. The insert closes the recess airtight. The plug receptacle 24 is used for airtight passage of connection cables 25 for the device control and the cable drum (both not shown) from the outside of the motor fan room 10 to the fan 3 on the inside. The parked on the connector receptacle 24 connector 26 extends in the mounting direction, so that when placing the motor fan 3 in the lower housing part 2 automatically the electrical connection is made.

Claims (14)

  1. Vacuum cleaner (100) comprising a housing which comprises two housing parts (1, 2) which, after assembly, enclose a chamber (10) for accommodating a motorised fan (3), which chamber includes a wall region which extends substantially in the assembly direction, the wall region being formed of two wall portions (14, 18) which have a peripherally closed contour and which, when the housing parts (1, 2) are assembled, overlap at their edge regions with an interference fit and without the insertion of a seal, and a wall portion (18 or 14) being arranged on each housing part (1 or 2, respectively),
    characterised in that
    the wall portions (14, 18) have a circular or oval cross-section.
  2. Vacuum cleaner (100) according to claim 1,
    characterised in that
    one of the wall portions (18) is formed in such a way that the cross-sectional area which it encloses increases towards the edge (22) which is assigned to the overlap region.
  3. Vacuum cleaner (100) according to claim 2,
    characterised in that
    the wall portion (18) is frustoconical.
  4. Vacuum cleaner (100) according to claim 2,
    characterised in that
    the thickness of the wall portion (18) decreases towards the edge (22) assigned to the overlap region.
  5. Vacuum cleaner (100) according to at least one of claims 2 to 4,
    characterised in that
    the other wall portion (14) is formed in such a way that the outer perimeter thereof decreases towards the edge assigned to the overlap region (23).
  6. Vacuum cleaner (100) according to claim 5,
    characterised in that
    the wall portion (14) is frustoconical.
  7. Vacuum cleaner (100) according to claim 5,
    characterised in that
    the thickness of the wall portion (14) decreases towards the edge assigned to the overlap region (23).
  8. Vacuum cleaner (100) according to at least one of the preceding claims,
    characterised in that
    each wall portion (18 or 14) is integrally formed on a housing part (1 or 2, respectively).
  9. Vacuum cleaner (100) according to claim 8,
    characterised in that
    the housing part (1 or 2) is produced from plastics material in one piece with the wall portion (18 or 14, respectively).
  10. Vacuum cleaner (100) according to at least one of the preceding claims,
    characterised in that
    the lead-through region of at least one motorised fan connection cable (25) is formed as a plug retainer (24) which can be inserted into a recess (17) of a wall portion (14).
  11. Vacuum cleaner (100) according to claim 10,
    characterised in that
    the plug retainer (24) is formed such that it can be inserted in a sealing manner into the recess (17) of a wall portion (14).
  12. Floor-type vacuum cleaner (100) according to at least one of the preceding claims,
    characterised in that
    the housing parts are formed as a lower housing part (2) and an upper housing part (1) and in that the assembly direction (27) extends perpendicular to the main extension direction of the lower housing part or perpendicular to the plane of movement of the floor-type vacuum cleaner.
  13. Vacuum cleaner (100) according to claim 12,
    characterised in that
    the suction opening (6) of the motorised fan (3) is directed towards the upper housing part (1).
  14. Floor-type vacuum cleaner (100) according to claim 13,
    characterised in that
    the air outlet (21) of the motorised fan chamber (10) is arranged in the upper housing part(1).
EP20080021513 2008-01-08 2008-12-11 Vacuum cleaner with a room to accept a motor fan Active EP2078485B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810003350 DE102008003350B4 (en) 2008-01-08 2008-01-08 Vacuum cleaner with a space for holding a motor blower

Publications (3)

Publication Number Publication Date
EP2078485A2 EP2078485A2 (en) 2009-07-15
EP2078485A3 EP2078485A3 (en) 2011-02-16
EP2078485B1 true EP2078485B1 (en) 2012-10-03

Family

ID=40404272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080021513 Active EP2078485B1 (en) 2008-01-08 2008-12-11 Vacuum cleaner with a room to accept a motor fan

Country Status (2)

Country Link
EP (1) EP2078485B1 (en)
DE (1) DE102008003350B4 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011007205A1 (en) * 2011-04-12 2012-10-18 BSH Bosch und Siemens Hausgeräte GmbH Motor arrangement for an electric motor driven household appliance and cleaning device
EP3866658A1 (en) 2018-10-19 2021-08-25 Alfred Kärcher SE & Co. KG Suction machine with sound-angle element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4421215B4 (en) * 1994-06-17 2007-01-18 Miele & Cie. Kg Vacuum cleaner with a separating joint seal
DE19616156C1 (en) * 1996-04-23 1997-10-02 Fakir Werk Gmbh & Co Vacuum cleaner with housing comprising lower and upper parts
DE10336827A1 (en) 2003-08-11 2005-03-10 Bsh Bosch Siemens Hausgeraete Vacuum cleaner with a blower capsule
FR2873563B1 (en) * 2004-07-29 2006-09-22 Seb Sa VACUUM

Also Published As

Publication number Publication date
DE102008003350A1 (en) 2009-07-09
EP2078485A3 (en) 2011-02-16
DE102008003350B4 (en) 2011-05-19
EP2078485A2 (en) 2009-07-15

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