EP1784105A1 - Vacuum cleaner comprising a valve housing which is formed thereon - Google Patents

Vacuum cleaner comprising a valve housing which is formed thereon

Info

Publication number
EP1784105A1
EP1784105A1 EP05779845A EP05779845A EP1784105A1 EP 1784105 A1 EP1784105 A1 EP 1784105A1 EP 05779845 A EP05779845 A EP 05779845A EP 05779845 A EP05779845 A EP 05779845A EP 1784105 A1 EP1784105 A1 EP 1784105A1
Authority
EP
European Patent Office
Prior art keywords
housing part
valve
valve housing
vacuum cleaner
cleaner according
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
EP05779845A
Other languages
German (de)
French (fr)
Other versions
EP1784105B1 (en
Inventor
Roland Illig
Thomas PÖTSCH
Christian Scheler
Thomas Seith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1784105A1 publication Critical patent/EP1784105A1/en
Application granted granted Critical
Publication of EP1784105B1 publication Critical patent/EP1784105B1/en
Not-in-force 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
    • 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
    • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action
    • 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
    • A47L9/19—Means for monitoring filtering operation
    • 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 vacuum valve according to the preamble of claim 1.
  • a vacuum cleaner on the market has a vacuum-controlled valve, which opens a secondary air duct when exceeding a permissible maximum negative pressure, so that, for example, in the case of blockages in the dust filter area further air can be sucked through the motor / blower unit. Since the fan motor is cooled by the suction air flow, it must be ensured that the motor / blower unit always flows through a minimum air flow. If the air intake, for example due to blockages in the region of the nozzle, the Saugroheres, the suction hose or the dust filter bag is interrupted, it may come without such Mau Kunststoffansaugung overheating of the motor / blower unit.
  • a cup-shaped valve body In a vacuum cleaner on the market a cup-shaped valve body is biased by a spring coil in its closed position used in a valve housing.
  • the valve housing is made of plastic and latched by means of snap hooks on an electrical circuit board of the vacuum cleaner.
  • care must be taken to ensure that an inlet opening provided on the valve housing and an outlet opening are largely air-tightly coupled to a secondary air channel provided in the housing of the vacuum cleaner. Due to the structural separation of the secondary air duct and the valve housing assembly is difficult and there is a risk that the valve housing is not sufficiently airtight coupled to the secondary air duct. Incorrect air flows can lead to a faulty function of the vacuum valve.
  • the object of the invention is to provide a vacuum cleaner with a vacuum valve, which can be mounted in a simple and reliable manner.
  • a further object of the invention is to make the function of the vacuum valve reliable. This object is achieved in that the valve housing is provided on at least one housing part of the vacuum cleaner. By the valve housing is already provided to a housing part of the vacuum cleaner, a separate mounting of the valve housing is unnecessary. Furthermore, the valve housing provided on the housing part may already be connected to the secondary air duct. Due to the already predefined mutual position of the valve housing and housing part of the vacuum cleaner, a more reliable sealing between the valve housing and the auxiliary air channel is ensured.
  • the valve housing is formed at least in two parts with a first valve housing part and a second valve housing part, wherein for mounting the valve housing by assembling a first housing part and a second housing part of the vacuum cleaner, the first valve housing part on the first housing part and the second valve housing part on the second housing part is provided.
  • the valve housing is made in two parts and each of the valve housing is provided on another housing part of the vacuum cleaner, the assembly of the valve housing by the assembly step of assembling the housing parts of the vacuum cleaner can take place. This eliminates a separate assembly step for the assembly of the valve body parts. Since at least one mounting step is required during assembly of the vacuum cleaner to assemble two housing parts of the vacuum cleaner, this assembly step can be used simultaneously for mounting the valve housing parts.
  • the two valve housing parts are arranged on those housing parts of the vacuum cleaner, which already receive parts of the secondary air duct. Ie. an intake opening of a first valve housing part and an outflow opening of a second valve housing part may already be formed fixedly connected to the secondary air passage. This eliminates a separate seal between the valve housing and secondary air duct. By eliminating a separate seal, the reliability of the function of the vacuum valve is increased, since it can lead to fewer failures due to unwanted leakage.
  • the first valve housing part is integrally formed on the first housing part and / or the second valve housing part on the second housing part. If the housing part and the valve housing parts are manufactured as plastic parts, then each valve housing part in the plastic injection molding process directly on the a housing part are formed. Due to the direct molding of the valve housing parts to the housing parts of the vacuum cleaner accounts for separate assembly steps for attaching the valve housing parts to the housing parts of the vacuum cleaner and separate fasteners are no longer required. Due to the additionally achieved reduction in the number of parts, the overall production of the vacuum cleaner is more cost-effective.
  • the first valve housing part is provided on a Gebläsekapselteil.
  • an additional second inner housing is provided in addition to the sealed installation of the motor / blower unit in the housing of the vacuum cleaner, which surrounds the motor / blower unit to an additional by forming a second sound-insulating wall To achieve noise reduction.
  • Such an additional housing, which surrounds the motor / blower unit is also referred to as a blower capsule. Since the secondary air channel with a flow side to the interior of the fan capsule must be connected, it is particularly advantageous if a valve housing part is already formed on a Gebläsekapselteil. This achieves a direct connection of the vacuum valve to the secondary air duct.
  • the second valve housing part is provided on a housing space cap.
  • a blower cap while an outer housing part of the vacuum cleaner is understood, which surrounds the fan capsule of the motor / blower unit.
  • the blower cap can also form the visible outer wall of the vacuum cleaner.
  • the secondary air duct For sucking in fresh air via the secondary air duct, the secondary air duct must be fluidically connected to the environment. Ie. at least on an outer housing part of the vacuum cleaner, a so-called secondary air opening is required to be sucked into the secondary air duct via the secondary air from the environment when the vacuum valve is open.
  • a so-called secondary air opening is required to be sucked into the secondary air duct via the secondary air from the environment when the vacuum valve is open.
  • valve housing part and the blower cap made of plastic, these two parts can also be in a simple manner in the plastic injection molding process - A -
  • the second valve housing part is formed directly on the blower cap.
  • valve housing is formed at least in two parts, then a seal is required between the two valve housing parts.
  • the first and the second valve housing part can be sealed in an assembled position of the housing parts of the vacuum cleaner by means of a labyrinth seal.
  • a labyrinth seal provided according to the invention, a separate sealing component is dispensable. By eliminating a separate sealing component and the Monatage is simplified because no additional seal between the valve body parts must be inserted.
  • a labyrinth seal according to the invention sufficient sealing between the valve body parts is achieved solely by joining the housing parts of the vacuum cleaner.
  • the invention further provides for pre-assemble a spring-biased valve lifter on one of the valve housing parts.
  • a locking means between the spring-biased valve stem in the valve housing part For preassembled holding the spring-biased valve stem in the valve housing part a locking means between
  • Valve tappet and valve housing part provided. To install the valve stem, first a spring element is inserted into the valve housing part and the valve stem is attached. In order to prevent that the spring-biased valve stem is moved out of the valve housing part by the spring force again, this engages behind
  • Valve body part firmly.
  • the spring element and the valve tappet can already be preassembled in the housing part of the vacuum cleaner.
  • final assembly of the vacuum cleaner then only the respective housing part of the vacuum cleaner is to be mounted.
  • the latching means is preferably formed by a latching lug of the valve housing part which engages behind the valve plunger. If the valve housing part or the housing part of the vacuum cleaner is made of plastic, the latching means, which has the latching lug, can be formed directly on the valve housing part or the housing part of the vacuum cleaner. After the valve body parts of the vacuum valve are assembled together, the function of the locking means for retaining the spring-loaded valve stem is no longer necessary. The spring-biased valve lifter can then be held in position solely by the closed valve housing. Thus, it is provided in one embodiment of the invention that the detent is relieved in assembled position of the housing parts of the vacuum cleaner, or the valve housing parts of the spring-biased valve lifter.
  • the spring-biased valve tappet can have a circular cross section and the valve housing part can have an oval or elliptical cross section.
  • the valve lifter When the circular valve lifter is inserted in the oval or elliptical valve housing part, the valve lifter does not completely seal the cross section of the valve housing. Between the circular valve stem and the oval or elliptical valve housing part remain two crescent-shaped cross-sections, which form a bypass.
  • valve housing part may have a circular cross section in which an oval or elliptical valve tappet is inserted.
  • Figure 1 is a partially sectioned side view of a Gebläsekapselteils with molded first valve housing part;
  • FIG. 2 is a sectional view of a blower hood according to the invention with molded second valve housing part;
  • FIG. 3 shows a plan view of the blower capsule part according to FIG. 1;
  • Figure 4 is a partial sectional view through an inventive vacuum valve with spring-biased latched valve lifter.
  • FIG. 1 shows a blower capsule part 1.
  • the fan part 1 is hood-shaped.
  • the hood-shaped Gebläsekapselteil 1 has a top wall 2, in which an exhaust opening 3 is inserted.
  • the blow-out opening 3 encloses a receptacle 4, which is designed to receive a blow-off filter.
  • a receptacle 4 which is designed to receive a blow-off filter.
  • the unillustrated exhaust filter in the receptacle 4 is releasably held.
  • side walls 6 of the hood-shaped fan part 1 extend downwards.
  • the circumferential side walls 6 have a free edge 7 to which a cross-sectionally U-shaped channel 8 is provided.
  • a sealant in particular a sealing cord 9 used.
  • the channel 8 together with an unillustrated edge of a lower part of the vacuum cleaner form a labyrinth seal.
  • fastening tabs 10 are formed on the side wall 6 and the channel 8 .
  • fasteners such as screws can be used whereby the fan capsule part 1 can be attached pressure-tight by means of the fastening tabs 10 on the not shown lower shell of the vacuum cleaner.
  • a first valve housing part 12 is integrally formed.
  • the valve housing part 12 is cup-shaped.
  • the pot-shaped valve housing part 12 has a valve bottom 13, followed by the vertical pot walls 14.
  • the pot wall 14 has a cross-sectionally elliptical basic shape.
  • guide ribs 15 for a valve lifter 16 shown in more detail in Figure 4 are further formed on the pot wall 14, a locking means 17.
  • the latching means 17 has a latching nose 18 which engages over the valve plunger 16 in the assembled state.
  • a downstream outlet opening 19 is provided on the valve bottom 13.
  • the sealing wall 20 is seated on the entrance of a secondary air duct, not shown, on the vacuum cleaner housing.
  • the sealing wall 20 is arranged at an opposite end of the valve housing part 12 is formed on the pot wall 14, a sealing edge 21.
  • the sealing edge 21 brings in the assembled state of the blower capsule part. 1 with a blower cap 22 in a labyrinth channel 23 of a second valve housing part 24 a.
  • the second valve housing part 24 is shown in more detail in FIG.
  • the blower hood 22 shown in Figure 2 is like the blower capsule part 1 hood-shaped.
  • the second valve housing part 24 is integrally formed on an inner side of the cap wall 25, the second valve housing part 24 is integrally formed.
  • the second valve housing part has a cover wall 26 to which the downwardly directed labyrinth channel 23 is integrally formed.
  • a pipe section 27 is integrally formed on the cover wall 26 coaxially with the labyrinth channel 23. A free edge 28 of the pipe section 27 is seated in the mounted of the vacuum valve on the bottom surface of the valve stem 16 sealingly.
  • FIG. 3 shows the fan capsule part 1 from FIG. 1 in plan view.
  • the pot wall 14 of the valve housing part 12 has an oval or elliptical shape.
  • the guide ribs 15 are formed smaller in the vicinity of the short radius of the elliptical cross section than in the vicinity of the large radius of the elliptical cross section.
  • the different size of the guide ribs 15 serves to receive a valve stem 16 with a circular cross-section.
  • FIG. 4 shows a partial section of the blower capsule part 1 according to FIG. 1.
  • a seat 30 is provided, on which a separate spring element 31 can be placed.
  • the seat 30 may be formed directly on the valve bottom 13 of the valve housing part 12.
  • the spring element 31 may be formed as a separate component such as a metallic spring coil, but the spring element may, for example, be formed directly on the valve stem 16.
  • the spring element as the valve stem 16 is formed of plastic and formed of plastic spring element formed on the underside of the top surface of the valve stem 16.
  • valve tappet 16 After putting on the separate spring element 31 on the seat 30 or after direct insertion of the valve stem 16 in the valve housing part 12 slides the valve stem 16 along the guide ribs 15 of the cup walls 14 down until the locking lug 18 of the locking means 17 is locked behind the top surface of the valve stem 16. In the latched position of the valve tappet shown in FIG. 4, it is prevented that the mechanical prestress of the spring element 31 pushes the valve tappet 16 out of the valve housing part 12. In this preassembled position of the valve tappet 16, the valve tappet 16 can be mounted together with the fan capsule part 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Details Of Valves (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention relates to a vacuum cleaner comprising a housing and a motor/fan unit which is connected to the suction side of a dust chamber of a dust collecting device and to the pressure side of an exhaust opening, in addition to a valve body which is mounted in a valve housing such that it can move from a prestressed closing position, when a predetermined low pressure is reached, to an open position. The valve housing is arranged in an adjacent air channel which is fludically connected to the suction side of the motor/fan unit and is impinged upon by ambient pressure. The aim of the invention is to produce a vacuum cleaner having a low pressure valve, which can be mounted in a simple and reliable manner and the low pressure valve is embodied such that it can function in a reliable manner. According to the invention, the valve housing (12, 24) is arranged on at least one housing part (1, 22) of the vacuum cleaner.

Description

Staubsauger mit angeformtem Ventilgehäuse Vacuum cleaner with molded valve housing
Die Erfindung betrifft einen Staubsauger mit einem Unterdruckventil gemäß dem Oberbegriff des Patentanspruch 1 .The invention relates to a vacuum cleaner with a vacuum valve according to the preamble of claim 1.
Ein auf dem Markt befindlicher Staubsauger weist ein unterdruckgesteuertes Ventil auf, das bei Überschreitung eines zulässigen maximalen Unterdrucks einen Nebenluftkanal öffnet, sodass beispielsweise bei Verstopfungen im Bereich des Staubfilters weiterhin Luft durch das Motor-/Gebläseaggregat angesaugt werden kann. Da der Gebläsemotor durch den Saugluftstrom gekühlt wird, ist darauf zu achten, dass das Motor-/Gebläseaggregat stets durch einen Mindestluftstrom durchströmt wird. Ist die Luftansaugung beispielsweise aufgrund von Verstopfungen im Bereich der Düse, des Saugroheres, des Saugschlauches oder des Staubfilterbeutels unterbrochen, so kann es ohne einer solchen Nebenluftansaugung zu Überhitzungen des Motor-/Gebläseaggregats kommen.A vacuum cleaner on the market has a vacuum-controlled valve, which opens a secondary air duct when exceeding a permissible maximum negative pressure, so that, for example, in the case of blockages in the dust filter area further air can be sucked through the motor / blower unit. Since the fan motor is cooled by the suction air flow, it must be ensured that the motor / blower unit always flows through a minimum air flow. If the air intake, for example due to blockages in the region of the nozzle, the Saugroheres, the suction hose or the dust filter bag is interrupted, it may come without such Nebenluftansaugung overheating of the motor / blower unit.
Bei einem auf dem Markt befindlichen Staubsauger ist ein tassenförmiger Ventilkörper mittels einer Federwendel in seiner Schließposition vorgespannt in einem Ventilgehäuse eingesetzt. Das Ventilgehäuse ist aus Kunststoff ausgebildet und mittels Rasthacken an einer elektrischen Leiterplatte des Staubsaugers verrastet. Bei der Montage ist darauf zu achten, dass eine am Ventilgehäuse vorgesehene Einstromöffnung und eine Ausstromöffnung weitgehend luftdicht an einem im Gehäuse des Staubsaugers vorgesehenen Nebenluftkanal angekoppelt wird. Aufgrund der baulichen Trennung des Nebenluftkanals und des Ventilgehäuses ist die Montage schwierig und es besteht die Gefahr, dass das Ventilgehäuse nicht ausreichend luftdicht an den Nebenluftkanal angekoppelt ist. Durch Fehlluftströmungen kann es zu einer fehlerhaften Funktion des Unterdruckventils kommen.In a vacuum cleaner on the market a cup-shaped valve body is biased by a spring coil in its closed position used in a valve housing. The valve housing is made of plastic and latched by means of snap hooks on an electrical circuit board of the vacuum cleaner. During assembly, care must be taken to ensure that an inlet opening provided on the valve housing and an outlet opening are largely air-tightly coupled to a secondary air channel provided in the housing of the vacuum cleaner. Due to the structural separation of the secondary air duct and the valve housing assembly is difficult and there is a risk that the valve housing is not sufficiently airtight coupled to the secondary air duct. Incorrect air flows can lead to a faulty function of the vacuum valve.
Aufgabe der Erfindung ist es, einen Staubsauger mit einem Unterdruckventil zu schaffen, der in einfacher und zuverlässiger Weise montiert werden kann. Eine weiterführende Aufgabe der Erfindung ist es die Funktion des Unterdruckventils zuverlässiger zu gestalten. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Ventilgehäuse an wenigstens einem Gehäuseteil des Staubsaugers vorgesehen ist. Indem das Ventilgehäuse bereits an ein Gehäuseteil des Staubsaugers vorgesehen wird, ist eine gesonderte Montage des Ventilgehäuses entbehrlich. Des Weiteren kann das an dem Gehäuseteil vorgesehene Ventilgehäuse bereits mit dem Nebenluftkanal verbunden sein. Durch die bereits vordefinierte gegenseitige Lage von Ventilgehäuse und Gehäuseteil des Staubsaugers ist auch eine zuverlässigere Abdichtung zwischen Ventilgehäuse und Nebenluftkanal sichergestellt.The object of the invention is to provide a vacuum cleaner with a vacuum valve, which can be mounted in a simple and reliable manner. A further object of the invention is to make the function of the vacuum valve reliable. This object is achieved in that the valve housing is provided on at least one housing part of the vacuum cleaner. By the valve housing is already provided to a housing part of the vacuum cleaner, a separate mounting of the valve housing is unnecessary. Furthermore, the valve housing provided on the housing part may already be connected to the secondary air duct. Due to the already predefined mutual position of the valve housing and housing part of the vacuum cleaner, a more reliable sealing between the valve housing and the auxiliary air channel is ensured.
In einer bevorzugten Ausgestaltung der Erfindung ist das Ventilgehäuse zumindest zweiteilig mit einem ersten Ventilgehäuseteil und einem zweiten Ventilgehäuseteil ausgebildet, wobei zur Montage des Ventilgehäuses durch Zusammenfügen eines ersten Gehäuseteils und eines zweiten Gehäuseteils des Staubsaugers das erste Ventilgehäuseteil am ersten Gehäuseteil und das zweite Ventilgehäuseteil am zweiten Gehäuseteil vorgesehen ist. Indem das Ventilgehäuse zweiteilig ausgeführt ist und jedes der Ventilgehäuse an einem anderen Gehäuseteil des Staubsaugers vorgesehen ist, kann die Montage des Ventilgehäuses durch den Montageschritt des Zusammenfügens der Gehäuseteile des Staubsaugers erfolgen. Dabei entfällt ein gesonderter Montageschritt für das Zusammenfügen der Ventilgehäuseteile. Da bei der Montage des Staubsaugers zumindest ein Montageschritt erforderlich ist, um zwei Gehäuseteile des Staubsaugers zusammenzufügen, kann dieser Montageschritt gleichzeitig zur Montage der Ventilgehäuseteile genutzt werden. Vorzugsweise werden die beiden Ventilgehäuseteile an diejenigen Gehäuseteile des Staubsaugers angeordnet, die bereits Teile des Nebenluftkanals aufnehmen. D. h. eine Ansaugöffnung eines ersten Ventilgehäuseteils und eine Ausströmöffnung eines zweiten Ventilgehäuseteils kann bereits fest mit dem Nebenluftkanal verbunden ausgebildet sein. So entfällt eine gesonderte Abdichtung zwischen Ventilgehäuse und Nebenluftkanal. Durch den Wegfall einer gesonderten Dichtung wird die Zuverlässigkeit für die Funktion des Unterdruckventils erhöht, da es zu weniger Ausfällen aufgrund von unerwünschten Leckströmungen kommen kann.In a preferred embodiment of the invention, the valve housing is formed at least in two parts with a first valve housing part and a second valve housing part, wherein for mounting the valve housing by assembling a first housing part and a second housing part of the vacuum cleaner, the first valve housing part on the first housing part and the second valve housing part on the second housing part is provided. By the valve housing is made in two parts and each of the valve housing is provided on another housing part of the vacuum cleaner, the assembly of the valve housing by the assembly step of assembling the housing parts of the vacuum cleaner can take place. This eliminates a separate assembly step for the assembly of the valve body parts. Since at least one mounting step is required during assembly of the vacuum cleaner to assemble two housing parts of the vacuum cleaner, this assembly step can be used simultaneously for mounting the valve housing parts. Preferably, the two valve housing parts are arranged on those housing parts of the vacuum cleaner, which already receive parts of the secondary air duct. Ie. an intake opening of a first valve housing part and an outflow opening of a second valve housing part may already be formed fixedly connected to the secondary air passage. This eliminates a separate seal between the valve housing and secondary air duct. By eliminating a separate seal, the reliability of the function of the vacuum valve is increased, since it can lead to fewer failures due to unwanted leakage.
In einer vorteilhaften Ausgestaltung der Erfindung ist das erste Ventilgehäuseteil am ersten Gehäuseteil und/oder das zweite Ventilgehäuseteil am zweiten Gehäuseteil angeformt. Wenn die Gehäuseteil und die Ventilgehäuseteile als Kunststoffteile hergestellt sind, so kann jeweils ein Ventilgehäuseteil im Kunststoffspritzgussverfahren direkt an dem einen Gehäuseteil angeformt werden. Durch die direkte Anformung der Ventilgehäuseteile an die Gehäuseteile des Staubsaugers entfallen gesonderte Montageschritte zum Befestigen der Ventilgehäuseanteile an den Gehäuseteilen des Staubsaugers und gesonderte Befestigungsmittel sind nicht mehr erforderlich. Durch die zusätzlich erreichte Reduzierung der Teilezahl ist auch insgesamt die Herstellung des Staubsaugers kostengünstiger möglich.In an advantageous embodiment of the invention, the first valve housing part is integrally formed on the first housing part and / or the second valve housing part on the second housing part. If the housing part and the valve housing parts are manufactured as plastic parts, then each valve housing part in the plastic injection molding process directly on the a housing part are formed. Due to the direct molding of the valve housing parts to the housing parts of the vacuum cleaner accounts for separate assembly steps for attaching the valve housing parts to the housing parts of the vacuum cleaner and separate fasteners are no longer required. Due to the additionally achieved reduction in the number of parts, the overall production of the vacuum cleaner is more cost-effective.
In einer bevorzugten Ausgestaltung der Erfindung ist das erste Ventilgehäuseteil an einem Gebläsekapselteil vorgesehen. Für eine besonders gute Geräuschisolierung des Motor-/Gebläseaggregats ist neben dem abgedichteten Einbau des Motor- /Gebläseaggregats in das Gehäuse des Staubsaugers ein zusätzliches zweites inneres Gehäuse vorgesehen, welches das Motor-/Gebläseaggregat zusätzlich umgibt, um durch Bildung einer zweiten schallisolierenden Wand eine zusätzliche Geräuschreduzierung zu erreichen. Ein solches zusätzliches Gehäuse, das das Motor-/Gebläseaggregat umgibt wird auch als Gebläsekapsel bezeichnet. Da der Nebenluftkanal mit einer Strömungsseite an den Innenraum der Gebläsekapsel angeschlossen sein muss, ist es von besonderem Vorteil wenn ein Ventilgehäuseteil bereits an einem Gebläsekapselteil angeformt ist. So wird eine direkte Verbindung des Unterdruckventils an den Nebenluftkanal erreicht.In a preferred embodiment of the invention, the first valve housing part is provided on a Gebläsekapselteil. For a particularly good noise insulation of the motor / blower unit, an additional second inner housing is provided in addition to the sealed installation of the motor / blower unit in the housing of the vacuum cleaner, which surrounds the motor / blower unit to an additional by forming a second sound-insulating wall To achieve noise reduction. Such an additional housing, which surrounds the motor / blower unit is also referred to as a blower capsule. Since the secondary air channel with a flow side to the interior of the fan capsule must be connected, it is particularly advantageous if a valve housing part is already formed on a Gebläsekapselteil. This achieves a direct connection of the vacuum valve to the secondary air duct.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist das zweite Ventilgehäuseteil an einer Gehäuseraumkappe vorgesehen. Als Gebläseraumkappe wird dabei ein äußeres Gehäuseteil des Staubsaugers verstanden, welches die Gebläsekapsel des Motor-/Gebläseaggregats umgibt. Die Gebläseraumkappe kann dabei gleichzeitig auch die sichtbare Außenwand des Staubsaugers bilden. Zum Ansaugen von Frischluft über den Nebenluftkanal muss der Nebenluftkanal mit der Umgebung strömungstechnisch verbunden sein. D. h. zumindest an einem äußeren Gehäuseteil des Staubsaugers ist eine sogenannte Nebenluftöffnung erforderlich über die Nebenluft aus der Umgebung in den Nebenluftkanal angesaugt werden kann, wenn das Unterdruckventil geöffnet ist. Zur direkten Anbindung des zweiten Ventilgehäuseteils an die Ansaugöffnung desIn a further advantageous embodiment of the invention, the second valve housing part is provided on a housing space cap. As a blower cap while an outer housing part of the vacuum cleaner is understood, which surrounds the fan capsule of the motor / blower unit. At the same time, the blower cap can also form the visible outer wall of the vacuum cleaner. For sucking in fresh air via the secondary air duct, the secondary air duct must be fluidically connected to the environment. Ie. at least on an outer housing part of the vacuum cleaner, a so-called secondary air opening is required to be sucked into the secondary air duct via the secondary air from the environment when the vacuum valve is open. For direct connection of the second valve housing part to the suction port of
Nebenluftkanals ist es deshalb zur Vermeidung von Undichtigkeiten besonderes vorteilhaft wenn das zweite Ventilgehäuseteil an einer Gebläseraumkappe vorgesehen ist.Side air ducts, it is therefore particularly advantageous to avoid leaks when the second valve housing part is provided on a blower hood.
Sind das zweite Ventilgehäuseteil und die Gebläseraumkappe aus Kunststoff hergestellt, so können diese beiden Teile auch in einfacher Weise im Kunststoffspritzgussverfahren - A -Are the second valve housing part and the blower cap made of plastic, these two parts can also be in a simple manner in the plastic injection molding process - A -
herstellt werden, d. h. das zweite Ventilgehäuseteil ist an die Gebläseraumkappe direkt angeformt.produced, d. H. the second valve housing part is formed directly on the blower cap.
Wenn das Ventilgehäuse zumindest zweiteilig ausgebildet ist, so ist zwischen den zwei Ventilgehäuseteilen eine Abdichtung erforderlich. Das erste und das zweite Ventilgehäuseteil können in zusammengefügter Lage der Gehäuseteile des Staubsaugers mittels einer Labyrinthdichtung abgedichtet sein. Durch eine erfindungsgemäß vorgesehen Labyrinthdichtung ist ein gesondertes Dichtungsbauteil entbehrlich. Durch den Wegfall eines gesonderten Dichtungsbauteiles ist auch die Monatage vereinfacht, da keine zusätzliche Dichtung zwischen den Ventilgehäuseteilen eingelegt werden muss. Durch die Verwendung einer erfindungsgemäßen Labyrinthdichtung wird ein ausreichende Abdichtung zwischen den Ventilgehäuseteilen allein durch Zusammenfügen der Gehäuseteile des Staubsaugers erreicht.If the valve housing is formed at least in two parts, then a seal is required between the two valve housing parts. The first and the second valve housing part can be sealed in an assembled position of the housing parts of the vacuum cleaner by means of a labyrinth seal. By means of a labyrinth seal provided according to the invention, a separate sealing component is dispensable. By eliminating a separate sealing component and the Monatage is simplified because no additional seal between the valve body parts must be inserted. By using a labyrinth seal according to the invention sufficient sealing between the valve body parts is achieved solely by joining the housing parts of the vacuum cleaner.
Die Erfindung weiterbildend ist vorgesehen einen federvorgespannten Ventilstößel an einem der Ventilgehäuseteile vorzumontieren. Zum vormontierten Halten des federvorgespannten Ventilstößels ist in dem Ventilgehäuseteil ein Rastmittel zwischenThe invention further provides for pre-assemble a spring-biased valve lifter on one of the valve housing parts. For preassembled holding the spring-biased valve stem in the valve housing part a locking means between
Ventilstößel und Ventilgehäuseteil vorgesehen. Zur Montage des Ventilstößels wird zunächst ein Federelement in das Ventilgehäuseteil eingesetzt und der Ventilstößel aufgesteckt. Um zu verhindern, dass der federvorgespannte Ventilstößel durch die Federkraft wieder aus dem Ventilgehäuseteil herausbewegt wird, hintergreift dasValve tappet and valve housing part provided. To install the valve stem, first a spring element is inserted into the valve housing part and the valve stem is attached. In order to prevent that the spring-biased valve stem is moved out of the valve housing part by the spring force again, this engages behind
Rastmittel den Ventilstößel und hält diesen in einer federvorgespannten Lage in demRastmittel the valve stem and holds it in a spring-biased position in the
Ventilgehäuseteil fest. Durch das erfindungsgemäße Rastmittel kann das Federelement und der Ventilstößel bereits in dem Gehäuseteil des Staubsaugers vormontiert sein. Bei der Fertigmontage des Staubsaugers ist dann nur noch das jeweilige Gehäuseteil des Staubsaugers zu montieren.Valve body part firmly. By means of the locking means according to the invention, the spring element and the valve tappet can already be preassembled in the housing part of the vacuum cleaner. When final assembly of the vacuum cleaner then only the respective housing part of the vacuum cleaner is to be mounted.
Das Rastmittel wird vorzugsweise von einer den Ventilstößel hintergreifenden Rastnase des Ventilgehäuseteils gebildet. Ist das Ventilgehäuseteil bzw. das Gehäuseteil des Staubsaugers aus Kunststoff hergestellt, so kann das Rastmittel, welches die Rastnase aufweist direkt an dem Ventilgehäuseteil bzw. dem Gehäuseteil des Staubsaugers angeformt sein. Nachdem die Ventilgehäuseteile des Unterdruckventils zusammenmontiert sind, ist die Funktion des Rastmittels zum Zurückhalten des federgespannten Ventilstößels nicht mehr erforderlich. Der federvorgespannte Ventilstößel kann dann allein durch das geschlossene Ventilgehäuse in seiner Position gehalten sein. So ist in einer Ausgestaltung der Erfindung vorgesehen, dass die Rastnase in zusammengefügter Lage der Gehäuseteile des Staubsaugers, bzw. der Ventilgehäuseteile von dem federvorgespannten Ventilstößel entlastet ist.The latching means is preferably formed by a latching lug of the valve housing part which engages behind the valve plunger. If the valve housing part or the housing part of the vacuum cleaner is made of plastic, the latching means, which has the latching lug, can be formed directly on the valve housing part or the housing part of the vacuum cleaner. After the valve body parts of the vacuum valve are assembled together, the function of the locking means for retaining the spring-loaded valve stem is no longer necessary. The spring-biased valve lifter can then be held in position solely by the closed valve housing. Thus, it is provided in one embodiment of the invention that the detent is relieved in assembled position of the housing parts of the vacuum cleaner, or the valve housing parts of the spring-biased valve lifter.
Zur Bildung eines zwischen Ventilstößel und Ventilgehäuseteil vorgesehenen Bypassquerschnitts kann erfindungsgemäß der federvorgespannte Ventilstößel einen kreisförmigen Querschnitt aufweisen und das Ventilgehäuseteil einen ovalen oder elliptischen Querschnitt aufweisen. Wenn der kreisförmige Ventilstößel in dem ovalen bzw. elliptischen Ventilgehäuseteil eingesetzt ist, so dichtet der Ventilstößel nicht vollständig den Querschnitt des Ventilgehäuses ab. Zwischen dem kreisförmigen Ventilstößel und dem ovalen bzw. elliptischen Ventilgehäuseteil verbleiben zwei sichelförmige Querschnitte, welche einen Bypass bilden. Prinzipiell ist es möglich einen derartigen Bypassquerschnitt durch jegliche Kombination zweier geeigneter unterschiedlicher Querschnitte von Ventilstößel und Ventilgehäuseteil zu realisieren. In jedem Fall ist sicherzustellen, das die jeweiligen Querschnitte sich einerseits nicht vollständig decken andererseits zwischen Ventilstößel und Ventilgehäuseteil eine gewisse Anlage zur Führung des beweglichen Ventilstößels im Ventilgehäuseteil sichergestellt ist. In einer alternativen Variante kann bspw. das Ventilgehäuseteil einen kreisförmigen Querschnitt aufweisen in dem ein ovaler oder elliptischer Ventilstößel eingesetzt ist.In order to form a bypass cross-section provided between the valve tappet and the valve housing part, according to the invention the spring-biased valve tappet can have a circular cross section and the valve housing part can have an oval or elliptical cross section. When the circular valve lifter is inserted in the oval or elliptical valve housing part, the valve lifter does not completely seal the cross section of the valve housing. Between the circular valve stem and the oval or elliptical valve housing part remain two crescent-shaped cross-sections, which form a bypass. In principle, it is possible to realize such a bypass cross section by any combination of two suitable different cross sections of the valve tappet and the valve housing part. In any case, it must be ensured that the respective cross sections on the one hand do not completely cover the other hand, between the valve stem and the valve housing part a certain system for guiding the movable valve stem is ensured in the valve housing part. In an alternative variant, for example, the valve housing part may have a circular cross section in which an oval or elliptical valve tappet is inserted.
Eine Ausführungsform der Erfindung ist im folgenden anhand der Figuren 1 bis 4 näher erläutert.An embodiment of the invention is explained in more detail below with reference to Figures 1 to 4.
Es zeigen:Show it:
Figur 1 eine teilgeschnittene Seitenansicht eines Gebläsekapselteils mit angeformten ersten Ventilgehäuseteil;Figure 1 is a partially sectioned side view of a Gebläsekapselteils with molded first valve housing part;
Figur 2 eine Schnittansicht eine erfindungsgemäßen Gebläseraumkappe mit angeformtem zweiten Ventilgehäuseteil; Figur 3 eine Draufsicht auf das Gebläsekapselteil gemäß Figur 1 ;Figure 2 is a sectional view of a blower hood according to the invention with molded second valve housing part; FIG. 3 shows a plan view of the blower capsule part according to FIG. 1;
Figur 4 eine Teilschnittansicht durch ein erfindungsgemäßes Unterdruckventil mit federvorgespannten verrastetem Ventilstößel.Figure 4 is a partial sectional view through an inventive vacuum valve with spring-biased latched valve lifter.
In Figur 1 ist ein Gebläsekapselteil 1 dargestellt. Das Gebläseteil 1 ist haubenförmig ausgebildet. Das haubenförmige Gebläsekapselteil 1 weist eine Deckwand 2 auf, in die eine Ausblasöffnung 3 eingelassen ist. Die Ausblasöffnung 3 umschließt eine Aufnahme 4, die zur Aufnahme eines Ausblasfilters ausgebildet ist. Über einen an der Deckwand 2 des Gebläsekapselteils 1 angeformten Rasthacken 5 ist der nichtdargestellte Ausblasfilter in der Aufnahme 4 lösbar gehalten. Von der Deckwand 2 ausgehend erstrecken sich Seitenwände 6 des haubenförmigen Gebläseteils 1 nach unten. Die umlaufenden Seitenwände 6 weisen eine freie Kante 7 auf an die eine im Querschnitt U-förmige Rinne 8 vorgesehen ist. In die Rinne 8 ist optional ein Dichtmittel, insbesondere eine Dichtschnur 9 einsetzbar. Unter Weglassen der Dichtschnur 9 kann alternativ die Rinne 8 zusammen mit einer nichtdargestellten Kante eines Unterteils des Staubsaugers eine Labyrinthdichtung bilden. An die Seitenwand 6 bzw. die Rinne 8 sind Befestigungslaschen 10 angeformt. Durch die Öffnungen 1 1 sind Befestigungsmittel wie bspw. Schrauben einsetzbar wodurch das Gebläsekapselteil 1 mittels der Befestigungslaschen 10 an der nichtdargestellten Unterschale des Staubsaugers druckdicht befestigt werden kann. An einer Seitenwand 6 ist ein erstes Ventilgehäuseteil 12 angeformt. Das Ventilgehäuseteil 12 ist topfförmig ausgebildet. Das topfförmige Ventilgehäuseteil 12 weist einen Ventilboden 13 auf, an den sich senkrechte Topfwände 14 anschließen. Die Topfwand 14 weist eine im Querschnitt elliptische Grundform auf. An der Innenseite der Topfwand 14 sind Führungsrippen 15 für einen in Figur 4 näher dargestellten Ventilstößel 16. Des Weiteren ist an der Topfwand 14 ein Rastmittel 17 angeformt. Das Rastmittel 17 weist eine Rastnase 18 auf welche den Ventilstößel 16 in montierten Zustand übergreift. Am Ventilboden 13 ist des Weiteren eine abströmseitige Ausblasöffnung 19 vorgesehen. An einer Unterseite des Ventilbodens 13 ist eine bodenseitige Dichtungswand 20 angeformt. Die Dichtungswand 20 sitzt auf den Eingang eines nicht dargestellten Nebenluftkanals am Staubsaugergehäuse an. Der Dichtungswand 20 an einem gegenüberliegenden Ende des Ventilgehäuseteils 12 angeordnet ist an die Topfwand 14 eine Dichtungskante 21 angeformt. Die Dichtungskante 21 bringt im montierten Zustand des Gebläsekapselteils 1 mit einer Gebläseraumkappe 22 in einen Labyrinthkanal 23 eines zweiten Ventilgehäuseteils 24 ein.FIG. 1 shows a blower capsule part 1. The fan part 1 is hood-shaped. The hood-shaped Gebläsekapselteil 1 has a top wall 2, in which an exhaust opening 3 is inserted. The blow-out opening 3 encloses a receptacle 4, which is designed to receive a blow-off filter. About an integrally formed on the top wall 2 of the fan capsule part 1 detent 5 the unillustrated exhaust filter in the receptacle 4 is releasably held. Starting from the top wall 2, side walls 6 of the hood-shaped fan part 1 extend downwards. The circumferential side walls 6 have a free edge 7 to which a cross-sectionally U-shaped channel 8 is provided. Into the groove 8 is optionally a sealant, in particular a sealing cord 9 used. By omitting the sealing cord 9, alternatively, the channel 8 together with an unillustrated edge of a lower part of the vacuum cleaner form a labyrinth seal. On the side wall 6 and the channel 8 fastening tabs 10 are formed. Through the openings 1 1 fasteners such as screws can be used whereby the fan capsule part 1 can be attached pressure-tight by means of the fastening tabs 10 on the not shown lower shell of the vacuum cleaner. On a side wall 6, a first valve housing part 12 is integrally formed. The valve housing part 12 is cup-shaped. The pot-shaped valve housing part 12 has a valve bottom 13, followed by the vertical pot walls 14. The pot wall 14 has a cross-sectionally elliptical basic shape. On the inside of the pot wall 14 guide ribs 15 for a valve lifter 16 shown in more detail in Figure 4 are further formed on the pot wall 14, a locking means 17. The latching means 17 has a latching nose 18 which engages over the valve plunger 16 in the assembled state. Furthermore, a downstream outlet opening 19 is provided on the valve bottom 13. On an underside of the valve bottom 13, a bottom-side sealing wall 20 is integrally formed. The sealing wall 20 is seated on the entrance of a secondary air duct, not shown, on the vacuum cleaner housing. The sealing wall 20 is arranged at an opposite end of the valve housing part 12 is formed on the pot wall 14, a sealing edge 21. The sealing edge 21 brings in the assembled state of the blower capsule part. 1 with a blower cap 22 in a labyrinth channel 23 of a second valve housing part 24 a.
Das zweite Ventilgehäuseteil 24 ist in Figur 2 näher dargestellt. Die in Figur 2 dargestellte Gebläseraumkappe 22 ist wie das Gebläsekapselteil 1 haubenförmig ausgebildet. An einer Innenseite der Kappenwand 25 ist das zweite Ventilgehäuseteil 24 angeformt. Das zweite Ventilgehäuseteil weist eine Deckelwand 26 auf an die der nach unten gerichtete Labyrinthkanal 23 angeformt ist. Des Weiteren ist an der Deckelwand 26 koaxial zum Labyrinthkanal 23 ein Rohrstück 27 angeformt. Eine freie Kante 28 des Rohrstücks 27 sitzt im montierten des Unterdruckventils auf der Bodenfläche des Ventilstößels 16 dichtend auf. Im montierten Zustand von Gebläsekapselteil 1 und Ventilgehäuseteil 12 drückt die freie Kante 28 des Rohrstücks 27 derart auf die Deckfläche des Ventilstößels 16, dass der Ventilstößel 16 soweit nach unten gedrückt wird, dass die Rastnase 18 des Rastmittels 17 unbelastet ist. Ein Ansaugkanal 29 in der Gebläseraumkappe 22 ist mit Umgebungsluft verbunden. Über den Ansaugkanal 29 wird Frischluft bei geöffnetem Ventilstößel 16 über einen Eintritt 30 durch die Deckelwand 26 des zweiten Ventilgehäuseteils 24 angesaugt.The second valve housing part 24 is shown in more detail in FIG. The blower hood 22 shown in Figure 2 is like the blower capsule part 1 hood-shaped. On an inner side of the cap wall 25, the second valve housing part 24 is integrally formed. The second valve housing part has a cover wall 26 to which the downwardly directed labyrinth channel 23 is integrally formed. Furthermore, a pipe section 27 is integrally formed on the cover wall 26 coaxially with the labyrinth channel 23. A free edge 28 of the pipe section 27 is seated in the mounted of the vacuum valve on the bottom surface of the valve stem 16 sealingly. In the assembled state of the blower capsule part 1 and the valve housing part 12, the free edge 28 of the pipe section 27 presses on the top surface of the valve lifter 16 such that the valve lifter 16 is pressed down so far that the latching lug 18 of the latching means 17 is unloaded. An intake passage 29 in the blower cap 22 is connected to ambient air. Fresh air is sucked in via the inlet channel 29 with the valve tappet 16 open via an inlet 30 through the cover wall 26 of the second valve housing part 24.
Die Figur 3 zeigt das Gebläsekapselteil 1 aus Figur 1 in der Draufsicht. In der dargestellten Ausführungsform weist die Topfwand 14 des Ventilgehäuseteils 12 eine ovale bzw. elliptische Form auf. Die Führungsrippen 15 sind in Nähe des kurzen Radius des elliptischen Querschnitts kleiner ausgebildet als in Nähe des großen Radius des elliptischen Querschnitts. Die unterschiedliche Größe der Führungsrippen 15 dient zur Aufnahme eines Ventilstößels 16 mit kreisrundem Querschnitt.FIG. 3 shows the fan capsule part 1 from FIG. 1 in plan view. In the illustrated embodiment, the pot wall 14 of the valve housing part 12 has an oval or elliptical shape. The guide ribs 15 are formed smaller in the vicinity of the short radius of the elliptical cross section than in the vicinity of the large radius of the elliptical cross section. The different size of the guide ribs 15 serves to receive a valve stem 16 with a circular cross-section.
Figur 4 zeigt einen Teil ausschnitt des Gebläsekapselteils 1 gemäß Figur 1 . Am Ventilboden 13 des Ventilgehäuseteils 12 ist ein Sitz 30 vorgesehen, auf den ein gesondertes Federelement 31 aufsetzbar ist. Der Sitz 30 kann direkt an den Ventilboden 13 des Ventilgehäuseteils 12 angeformt sein. Es muss auch nicht notwendigerweise das Federelement 31 als gesondertes Bauteil wie beispielsweise eine metallische Federwendel ausgebildet sein, sondern das Federelement kann bspw. auch direkt an den Ventilstößel 16 angeformt sein. Dabei ist das Federelement wie der Ventilstößel 16 aus Kunststoff ausgebildet und das aus Kunststoff bestehende Federelement an die Unterseite der Deckfläche des Ventilstößels 16 angeformt. Nach Aufsetzen des gesonderten Federelements 31 auf den Sitz 30 oder nach direktem Einsetzen des Ventilstößels 16 in das Ventilgehäuseteil 12 gleitet der Ventilstößel 16 entlang der Führungsrippen 15 der Topfwände 14 nach unten, bis die Rastnase 18 des Rastmittels 17 hinter der Deckfläche des Ventilstößels 16 verrastet. In der in Figur 4 dargestellten verrasteten Position des Ventilstößels ist verhindert, dass die mechanische Vorspannung des Federelements 31 den Ventilstößel 16 aus dem Ventilgehäuseteil 12 herausdrückt. In dieser vormontierten Lage des Ventilstößels 16 kann der Ventilstößel 16 zusammen mit dem Gebläsekapselteil 1 montiert werden. FIG. 4 shows a partial section of the blower capsule part 1 according to FIG. 1. At the valve bottom 13 of the valve housing part 12, a seat 30 is provided, on which a separate spring element 31 can be placed. The seat 30 may be formed directly on the valve bottom 13 of the valve housing part 12. It is not necessarily the spring element 31 may be formed as a separate component such as a metallic spring coil, but the spring element may, for example, be formed directly on the valve stem 16. In this case, the spring element as the valve stem 16 is formed of plastic and formed of plastic spring element formed on the underside of the top surface of the valve stem 16. After putting on the separate spring element 31 on the seat 30 or after direct insertion of the valve stem 16 in the valve housing part 12 slides the valve stem 16 along the guide ribs 15 of the cup walls 14 down until the locking lug 18 of the locking means 17 is locked behind the top surface of the valve stem 16. In the latched position of the valve tappet shown in FIG. 4, it is prevented that the mechanical prestress of the spring element 31 pushes the valve tappet 16 out of the valve housing part 12. In this preassembled position of the valve tappet 16, the valve tappet 16 can be mounted together with the fan capsule part 1.

Claims

Patentansprüche claims
1 . Staubsauger mit einem Gehäuse und einem Motor-/Gebläseaggregat, das saugseitig an einen Staubraum einer Staubsammelvorrichtung und druckseitig an eine Ausblasöffnung angeschlossen ist, sowie mit einem Ventilkörper, der aus einer vorgespannten Schließposition bei Erreichen eines vorgegebenen Unterdrucks in eine Offenposition umschaltend in einem Ventilgehäuse gelagert ist, das in einem Nebenluftkanal angeordnet ist, der strömungstechnisch einerseits mit der Saugseite des Motor-/Gebläseaggregats verbunden und andererseits mit Umgebungsdruck beaufschlagt ist, dadurch gekennzeichnet, dass das Ventilgehäuse an wenigstens einem Gehäusesteil des Staubsaugers vorgesehen ist.1 . Vacuum cleaner with a housing and a motor / blower unit, the suction side is connected to a dust chamber of a dust collector and the discharge side to a blowout, and with a valve body which is stored from a biased closed position upon reaching a predetermined negative pressure in an open position switching in a valve housing , Which is arranged in a secondary air channel, which is fluidically connected on the one hand to the suction side of the motor / blower unit and on the other hand acted upon by ambient pressure, characterized in that the valve housing is provided on at least one housing part of the vacuum cleaner.
2. Staubsauger nach Anspruch 1 , dadurch gekennzeichnet, dass das Ventilgehäuse zumindest zweiteilig mit einem ersten Ventilgehäuseteil (12) und einem zweiten Ventilgehäuseteil (24) ausgebildet ist und zur Montage des Ventilgehäuses durch Zusammenfügen eines ersten Gehäuseteils und eines zweiten Gehäuseteils des2. Vacuum cleaner according to claim 1, characterized in that the valve housing is formed at least in two parts with a first valve housing part (12) and a second valve housing part (24) and for mounting the valve housing by joining a first housing part and a second housing part of
Staubsaugers, das erste Ventilgehäuseteil (12) am ersten Gehäuseteil und das zweite Ventilgehäuseteil (24) am zweiten Gehäuseteil vorgesehen ist.Vacuum cleaner, the first valve housing part (12) on the first housing part and the second valve housing part (24) is provided on the second housing part.
3. Staubsauger nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das erste Ventilgehäuseteil (12) am ersten Gehäuseteil und/oder das zweite3. Vacuum cleaner according to claim 1 or 2, characterized in that the first valve housing part (12) on the first housing part and / or the second
Ventilgehäuseteil (24) am zweiten Gehäuseteil angeformt ist.Valve housing part (24) is integrally formed on the second housing part.
4. Staubsauger nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass das erste Ventilgehäuseteil (12) an einem Gebläsekapselteil (1 ) vorgesehen ist.4. Vacuum cleaner according to claim 2 or 3, characterized in that the first valve housing part (12) on a fan capsule part (1) is provided.
5. Staubsauger nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass das zweite Ventilgehäuseteil (24) an einer Gebläseraumkappe (22) vorgesehen ist.5. Vacuum cleaner according to one of claims 2 to 4, characterized in that the second valve housing part (24) on a blower cap (22) is provided.
6. Staubsauger nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass das erste und das zweite Ventilgehäuseteil (12, 24) in zusammengefügter Lage der6. Vacuum cleaner according to one of claims 2 to 5, characterized in that the first and the second valve housing part (12, 24) in the assembled position of
Gehäuseteile des Staubsaugers mittels einer Labyrinthdichtung abgedichtet sind. Housing parts of the vacuum cleaner are sealed by a labyrinth seal.
7. Staubsauger nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass an einem der Ventilgehäuseteile (12, 24) ein federvorgespannter Ventilstößel (16) vormontiert ist.7. Vacuum cleaner according to one of claims 2 to 6, characterized in that on one of the valve housing parts (12, 24) a spring-biased valve stem (16) is pre-assembled.
8. Staubsauger nach Anspruch 7, dadurch gekennzeichnet, dass zum vormontierten Halten des federvorgespannten Ventilstößels in dem Ventilgehäuseteil ein8. Vacuum cleaner according to claim 7, characterized in that for the pre-assembled holding the spring-biased valve stem in the valve housing part a
Rastmittel (17) zwischen Ventilstößel (16) und Ventilgehäuseteil vorgesehen ist.Locking means (17) between the valve stem (16) and the valve housing part is provided.
9. Staubsauger nach Anspruch 8, dadurch gekennzeichnet, dass das Rastmittel (17) von einer den Ventilstößel (16) hintergreifenden Rastnase (18) des Ventilgehäuseteils gebildet wird.9. Vacuum cleaner according to claim 8, characterized in that the latching means (17) of the valve plunger (16) engages behind latching lug (18) of the valve housing part is formed.
10. Staubsauger nach Anspruch 9, dadurch gekennzeichnet, dass die Rastnase (18) in zusammengefügter Lage der Gehäuseteile des Staubsaugers von dem federvorgespannten Ventilstößel entlastet ist.10. Vacuum cleaner according to claim 9, characterized in that the latching lug (18) is relieved in assembled position of the housing parts of the vacuum cleaner of the spring-biased valve lifter.
1 1 . Staubsauger nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, dass zur Bildung eines zwischen Ventilstößel (16) und Ventilgehäuseteil vorgesehenen Bypass-Querschnitts der federvorgespannte Ventilstößel einen kreisförmigen Querschnitt und das Ventilgehäuseteil einen ovalen oder elliptischen Querschnitt aufweist. 1 1. Vacuum cleaner according to one of claims 7 to 10, characterized in that for forming a provided between the valve stem (16) and the valve housing part by-pass cross section of the spring-biased valve stem has a circular cross-section and the valve housing part has an oval or elliptical cross-section.
EP05779845A 2004-08-24 2005-08-04 Vacuum cleaner comprising a valve housing which is formed thereon Not-in-force EP1784105B1 (en)

Applications Claiming Priority (2)

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DE102004040985A DE102004040985A1 (en) 2004-08-24 2004-08-24 Vacuum cleaner with molded valve housing
PCT/EP2005/053845 WO2006021498A1 (en) 2004-08-24 2005-08-04 Vacuum cleaner comprising a valve housing which is formed thereon

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EP1784105A1 true EP1784105A1 (en) 2007-05-16
EP1784105B1 EP1784105B1 (en) 2011-10-12

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CN (1) CN101005784B (en)
AT (1) ATE527925T1 (en)
DE (1) DE102004040985A1 (en)
ES (1) ES2372059T3 (en)
RU (1) RU2385149C2 (en)
WO (1) WO2006021498A1 (en)

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CN101005784A (en) 2007-07-25
WO2006021498A1 (en) 2006-03-02
ES2372059T3 (en) 2012-01-13
RU2385149C2 (en) 2010-03-27
RU2007105132A (en) 2008-10-10
DE102004040985A1 (en) 2006-03-02
EP1784105B1 (en) 2011-10-12
ATE527925T1 (en) 2011-10-15
CN101005784B (en) 2010-05-05

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