EP1715782B1 - Suction nozzle for a vacuum cleaner, comprising a dust flow display device - Google Patents
Suction nozzle for a vacuum cleaner, comprising a dust flow display device Download PDFInfo
- Publication number
- EP1715782B1 EP1715782B1 EP05707099A EP05707099A EP1715782B1 EP 1715782 B1 EP1715782 B1 EP 1715782B1 EP 05707099 A EP05707099 A EP 05707099A EP 05707099 A EP05707099 A EP 05707099A EP 1715782 B1 EP1715782 B1 EP 1715782B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vacuum cleaner
- suction nozzle
- dust
- suction
- connection part
- 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.)
- Not-in-force
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Classifications
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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
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
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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
- A47L9/02—Nozzles
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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
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
- A47L9/281—Parameters or conditions being sensed the amount or condition of incoming dirt or dust
Definitions
- the invention relates to a suction nozzle for a vacuum cleaner according to the preamble of claim 1.
- Such a vacuum cleaner is out of the JP 03 145333 B2 or from the US 5,815,884 A. known.
- a removable sub-housing above the bottom part of the suction nozzle is provided.
- optical dust detection means are provided in the suction channel or in the suction region of the bottom part of the suction nozzle.
- the bottom nozzle shown in this prior publication makes the disadvantages of this embodiment particularly clear.
- the fact that the additional elements - sensor, battery-operated control and display devices - must be accommodated directly in the bottom part of the suction nozzle, it inevitably leads to an increase in the design of the bottom part. As a result, it is no longer possible to drive under narrow free spaces of furniture with this suction nozzle.
- the display device is no longer visible when the bottom part of the suction nozzle still disappears under a piece of furniture. Furthermore, the bottom part of the suction nozzle is inevitably exposed to a strong impact load. This can very easily lead to disturbances of the control electronics located in the bottom part and the sensor elements, some of which are sensitive.
- one of the EP 0 759157 B1 become known solution so far particularly advantageous because it uses a piezoelectric sensor device by means of which even the smallest dust particles can be reliably sensed while z. B. Carpet fibers do not affect the signal so much.
- the piezoelectric sensor in the intake pipe or in an intake of the vacuum cleaner. When the dust particles present in the flow air path strike the piezoelectric sensor, they release a part of their kinetic energy to the sensor, the piezoelectric sensor converting the kinetic energy into a corresponding electrical signal (piezo voltage). While the prior art discloses in detail the physical sensor technology and electronic control, it does not detail where and how the individual elements are - Sensor, control electronics, display device and possibly provided for the power supply battery - should be arranged.
- the invention thus raises the problem of accommodating a sensor and display device in the flow air path of the vacuum cleaner such that a space-saving and ergonomically favorable attachment of the components involved in the overall system is provided. Furthermore, a fluidly favorable installation location for the sensor is to be found, with which a trouble-free and reliable functioning operation is ensured.
- the bottom part and the suction nozzle of the suction nozzle can be kept flat in its design.
- the design of an attachment housing on the upper side of the connection part or of the ascending connection piece also makes it possible to achieve an ergonomically favorable and design-compatible housing of all components.
- the battery compartment e.g. is easily accessible and the battery change is very easy.
- the display elements which represent the state of the suction air flow in the manner known per se via display LEDs, can be accommodated in a clearly visible manner for the user. The user always has this viewing window in direct eye contact because he has the suction nozzle area along the suction tube in the visor while sucking.
- the attachment of the piezoelectric sensor to the underside of the upper wall of the connection part decisively supports the special function of the system. If there are still heavy parts and particles in the suction air stream, they are usually transported below the sensor with the dust air flow in the collection chamber system of the vacuum cleaner. As a result, the sensor is protected and is not constantly exposed to the impact of heavy particles. Plus, he can develop his benefits when it matters. This is usually the case when the dust accumulation and the particle number of the air flow with the progress of the suction operation is getting lower. The sensor can even detect even the smallest dust particles in the air stream, so that it can still provide meaningful information to the user up to a very high degree of purity. This is very important especially for allergy sufferers. For this it is very advantageous that with the inventive Dust indicator known to be very allergenic particulate matter can be detected.
- Another advantage of the new arrangement is that a holding device is provided to which all the essential components are attached, such as the dust sensor, the board with the controller, the vacuum switch and the Anzelgeiata. As a result, a space-saving and compact design can be realized. Furthermore, a simple assembly and interchangeability is guaranteed in case of service, since the holding device can be detachably inserted into the opening of the connection part of the suction nozzle.
- the arrangement is in the installed state designed so that the air inlet line of the pressure switch is in the lee of the recording device, whereby contamination on the air inlet line are prevented, which would otherwise interfere with the proper operation of the pressure switch.
- FIG. 1 shows a vacuum cleaner (1) with a suction nozzle (2), a rigid suction pipe (3) and a flexible suction hose (4) through which the dust-laden air is transported in the direction of arrow in the dust collection chamber (5).
- the suction nozzle (2) is usually detachably connected to the suction pipe (3).
- the suction nozzle (2) is in the example shown a floor nozzle and consists essentially of the suction mouthpiece or nozzle part (2.1) and the connection point (2.2). Nozzle part (2.1) and connecting part (2.2) are usually connected to one another via a shoulder (2.3) mounted, so-called Drehkippgelenk.
- FIG. 2 An inventively designed suction nozzle is in the FIG. 2 shown in detail. Again, the nozzle part (2.1) of the suction nozzle (2) via the in the approach (2.3) mounted Drehkippgelenk connected to the connecting piece serving as the connecting part (2.2).
- the Connecting part (2.2) has at its upper end a locking pawl (6), with which the suction nozzle (2) can be attached to the suction pipe (3) of the vacuum cleaner.
- the connecting part (2.2) On the upper side of the ascending connecting part (2.2), on the side facing the nozzle part (2.1) of the suction nozzle (2) side, the connecting part (2.2) is formed with a housing (7).
- FIGS. 3 and 4 show the connector (2.2) with the control, sensor and display means housed therein in detail.
- the connecting part (2.2) consists of the connecting piece (2.4) which can be connected to the swivel joint (2.3) and the connection piece (2.5), which can be connected to the suction pipe (not shown here).
- the two connecting pieces (2.4 and 2.5) merge into each other to form an angle and thus form the connecting part (2.2).
- On the lower side of the connecting part (2.2) is still a locking element (18) formed for a parking aid.
- a battery compartment (8) is provided in the lower part.
- a receiving chamber (7.1) for the electrical control device for the detection of dust flow as well as for the dust flow indicating means is formed in the upper part of the housing (7).
- the housing has a viewing window (9) for the dust flow indicator on the end face facing upwards to the connection piece (2.5). This viewing window is thus aligned in the direction of the connection point for the suction pipe (3).
- the display (9) is in a highly visible area, since the user while sucking the display device along the suction pipe (3) has constantly in sight.
- the battery compartment (8) is provided with a removable cover (8.1), as is common in battery-powered devices. The batteries (13) can thus be easily accessible replaced.
- the piezoelectric dust sensor (11) is fixed in the upper wall of the connecting part (2.2) in a receiving part (12.1) of a holding device (12). In this case, the piezoelectric dust sensor (11) projects obliquely inclined into the dust flow stream in the interior of the tubular connecting part (2.2).
- a board (14) for the electronic control device and LED's (16) for the dust flow display are housed.
- a negative pressure switch (15) which can be activated by the control device is fastened on the circuit board (14) and communicates with its air inlet line (15.1) via an opening (17) with the dust flow stream.
- the Staubhnean Seaeetic (16) are also mounted on the board (14) and aligned with the viewing window (9), so that the display is displayed to the outside.
- the LEDs (16) are arranged on the circuit board (14) with a light radiation-dependent coordinated distance to the viewing window (9), so that in conjunction with the choice of a suitable material for the viewing window results in a planar illumination of the viewing window. Furthermore, it is characteristic that the viewing window is always backlit depending on the detected contamination in only one color (green, yellow, red), on the one hand to indicate the clear suction progress and on the other hand to allow a clear readability of the display in all possible orientations when the suction nozzle is combined with different suction pipes and handle parts of the suction hose of the vacuum cleaner. Furthermore, this design solution contributes to a reassurance of the display is achieved and that flickering of the LEDs, due to the strongly fluctuating signals of the dust sensor is largely avoided.
- a closable opening (19) Through the interior of the pipe socket, for. for cleaning or replacing the dust sensor (11) is accessible.
- the dust sensor (11) is exposed with its baffle and the oblique arrangement the upper part of the air flow in the tubular part of the connecting piece.
- This has the particular advantage that the heavy parts in the suction air flow are transported away under this sensor without reaching its baffle surface (see arrow direction in the connection part).
- the light particulate matter, which is distributed per se in the entire cross section of the air flow, is detected by the dust sensor (11).
- a degree of purity can be sensed with this sensor technology and this special arrangement of the sensor, in which even very fine dusts can be taken into account, which benefits the allergy sufferers among the users.
- the dust sensor (11) is advantageously arranged with an inclination angle (23) of 25 to 50 degrees in relation to the upper wall of the connecting part (2.2) in the dust air flow.
- connecting part (2.2) with the housing (7) formed on its upper side and the components housed therein is described in detail in the assembly drawing Fig. 5 out.
- the upper housing part is a housing shell (7.2), which is adapted to the shape of the connecting part (2.2) on its upper side.
- the connecting part (2.2) has on its upper side latching and fastening elements (21, 22) by means of which the housing shell (7.2) to the connecting part (2.2) by latching and by screwing can be fastened.
- the holding device (12) takes on its upper side, the board (14). On the board of the vacuum switch (15) and the display elements (16) and the control circuit not shown here in detail are arranged. It may be appropriate behind the display elements (16) to arrange a reflector, not shown in this drawing, which reflects the light rays in the direction of the viewing window (9).
- the connection to the batteries (13) is produced, wherein the batteries (13) in the battery compartment (8) can be used.
- the battery compartment can be closed with the battery compartment cover (8.1).
- the arrangement and design of the holding device (12) and the board (14) is such that the air inlet line (15.1) of the vacuum switch (15) on the in the receiving device (12.1) formed opening (17) and the nozzle (12.2) in Connection with the interior of the connecting part (2.2) can be brought.
- the receiving part (12.1) of the holding device for receiving the dust sensor (11) immersed in the attachment of the holding device (12) on the connecting part (2.2) through the opening formed there on the top (20) into the interior of the connecting part (2.2).
- the dust sensor (11) is thus exposed to the dust air flow and the air inlet line (15.1) of the pressure switch (15) lies in the lee of this receiving part (12.1) of the holding device.
- the display elements (16) are designed as green, yellow and red LEDs. In the assembled state, the arrangement is such that the display elements (16) are in a light radiation moderately matched position to the viewing window (9). Together with the selection of a suitable material for the viewing window (9) results in a flat and highly visible, flicker-free display. The user always sees only a full-surface display in the colors red, yellow and green, showing the degrees of purity "dirty”, “slightly dirty” and "clean".
- connection part can also be designed as an independent part or accessory and can then be connected between the suction nozzle (2) of a vacuum cleaner (1) and its suction pipe (3) or its suction hose (4).
- the connecting part is formed in the same way as the connecting part (2.2), except that in addition at its lower end also a connecting element is arranged, which establishes the connection with a connecting piece of the nozzle part (2).
- the sensor and display control communicate via a wireless transmission system with a control center in the vacuum cleaner, which can be further control and display options via the suction process. Furthermore, it is conceivable to derive the power supply for sensor and display control in electrical connection nozzles from the power supply system of the floor nozzle.
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Abstract
Description
Die Erfindung betrifft eine Saugdüse für einen Staubsauger nach dem Oberbegriff des Anspruchs 1.The invention relates to a suction nozzle for a vacuum cleaner according to the preamble of
Ein solcher Staubsauger ist aus der
Es besteht bei einem Staubsauger schon lange das Bedürfnis eine Mess- und Anzeigevorrichtung vorzusehen, die dem Benutzer eine Einschätzung darüber verschafft, wie sich während des Saugbetriebes der Reinheitsgrad der zu behandelnden Oberfläche entwickelt. Es wäre jedenfalls für die Bedienungsperson eine große Hilfe, wenn sie über eine Anzeigevorrichtung erkennen könnte, dass nach einer gewissen Zeit des Saugens kaum noch staubbeladene Luft durch das Strömungsleitsystem des Staubsaugers transportiert wird, so dass der Saugbetrieb nicht unnötig lange ausgedehnt wird. Um dem abzuhelfen, sind in der Schutzrechtsliteratur bereits eine Reihe von Vorschlägen gemacht worden, die bislang aber noch nicht zu einer praxisrelevanten Realisation geführt haben.There has long been a need in a vacuum cleaner to provide a measuring and indicating device that provides the user with an estimate of how the purity of the surface to be treated develops during suction operation. In any case, it would be of great help to the operator if, via a display device, he could recognize that hardly any dust-laden air is still being transported through the vacuum cleaner's flow control system after a certain period of suction, so that the suction operation is not unnecessarily prolonged. In order to remedy this, a number of proposals have already been made in the intellectual property literature, but so far they have not yet led to a practice-relevant realization.
So ist es z.B. aus der
Eine konkrete Ausführungsform, die jeweils vorsieht, die Sensor- und Anzeigevorrichtung für den Staubfluss in einer Saugdüse anzuordnen, ergeben sich aus dem
Bei der
Dies sind sicherlich auch die entscheidenden Gründe, dass sich bislang noch keine Saugdüse mit einer direkt im Bodenteil der Saugdüse angeordneten Anzeige- und Sensorvorrichtung auf dem Markt in nennenswerter Verbreitung etablieren konnte.These are certainly the decisive reasons that so far still could not establish a suction nozzle with a directly in the bottom part of the suction nozzle arranged display and sensor device on the market in significant distribution.
Alle vorbeschriebenen Lösungsvorschläge beruhen darauf, dass als Sensor eine optische Stauberkennung vorgesehen sein sollte, die allein aufgrund ihres Systems gewisse Schwächen aufweist. Es ist nicht sehr einfach, eine optische Messstrecke in den beengten Einbauverhältnissen der Strömungskanäle des Luftführungssystems bei einem Staubsauger unterzubringen. Ferner ist ein optisches Messsystem für bestimmte Zwecke nicht verlässlich und nicht genau. Nachteilig ist insbesondere, dass optische Systeme neben dem eigentlichen Staub auch auf Teppichfasem reagieren, die auf den Abrieb des Teppichs zurückzuführen sind, nicht aber Rückschlüsse auf den Reinheitsgrad erlauben.All the above-described proposed solutions are based on the fact that the sensor should be provided with an optical dust detection, which has certain weaknesses solely because of its system. It is not very easy to accommodate an optical measuring section in the cramped installation conditions of the flow channels of the air duct system in a vacuum cleaner. Furthermore, an optical measuring system is not reliable for specific purposes and not accurate. A particular disadvantage is that optical systems react in addition to the actual dust on Teppichfasem, which are due to the abrasion of the carpet, but do not allow conclusions about the degree of purity.
Demgegenüber ist eine aus der
Der Erfindung stellt sich somit das Problem, eine Sensor- und Anzeigevorrichtung derart im Strömungsluftweg des Staubsaugers unterzubringen, dass eine raumsparende und ergonomisch günstige Anbringung der am Gesamtsystem beteiligten Bauelemente geschaffen wird. Femer soll ein strömungsmäßig günstiger Einbauort für den Sensor gefunden werden, mit dem ein störungsfreier und zuverlässig funktionierender Betrieb gewährleistet wird.The invention thus raises the problem of accommodating a sensor and display device in the flow air path of the vacuum cleaner such that a space-saving and ergonomically favorable attachment of the components involved in the overall system is provided. Furthermore, a fluidly favorable installation location for the sensor is to be found, with which a trouble-free and reliable functioning operation is ensured.
Erfindungsgemäß wird dieses Problem durch eine mit den Merkmalen des Patentanspruchs 1 ausgebildete Saugdüse gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by a trained with the features of
Mit der Erfindung werden wesentliche Vorteile erzielt. Es wurde herausgefunden, dass sich gerade das nach oben gerichtete Anschlussteil der Saugdüsen für die Unterbringung des Sensor-, Steuerungs- und Anzeigesystems besonders eignet.Significant advantages are achieved with the invention. It has been found that it is precisely the upward-facing connector part of the suction nozzles that is particularly suitable for housing the sensor, control and display system.
Das Bodenteil bzw. das Saugmundstück der Saugdüse kann dabei in seiner Bauform weiterhin flach gehalten werden. Durch die Ausbildung eines Aufsatzgehäuses an der oberen Seite des Anschlussteils bzw. des aufsteigenden Anschlussstutzens lässt sich zudem eine ergonomisch günstige und designverträgliche Unterbringung aller Bauteile erreichen. Das Batteriefach z.B. ist leicht zugänglich und der Batteriewechsel gestaltet sich sehr einfach. Femer können die Anzeigeelemente, die den Zustand des Saugluftstromes in der an sich bekannten Weise über Anzeige-LED's darstellen, gut sichtbar für den Benutzer untergebracht werden. Der Benutzer hat dieses Anzeigefenster immer im direkten Blickkontakt, da er beim Saugen den Saugdüsenbereich entlang des Saugrohrs im Visier hat.The bottom part and the suction nozzle of the suction nozzle can be kept flat in its design. The design of an attachment housing on the upper side of the connection part or of the ascending connection piece also makes it possible to achieve an ergonomically favorable and design-compatible housing of all components. The battery compartment e.g. is easily accessible and the battery change is very easy. Furthermore, the display elements, which represent the state of the suction air flow in the manner known per se via display LEDs, can be accommodated in a clearly visible manner for the user. The user always has this viewing window in direct eye contact because he has the suction nozzle area along the suction tube in the visor while sucking.
Besonders wesentlich ist auch die Anbringung des piezoelektrischen Sensors an der Unterseite der oberen Wandung des Anschlussteils. Dies unterstützt die besondere Funktion des Systems entscheidend. Wenn sich noch schwere Teile und Partikel im Saugluftstrom befinden, werden diese in der Regel unterhalb des Sensors mit dem Staubluftstrom in das Sammelraumsystem des Staubsaugers transportiert. Dadurch wird der Sensor geschont und ist nicht ständig dem Aufprall schwerer Partikel ausgesetzt. Außerdem kann er seine Vorteile dann entwickeln, wenn es darauf ankommt. Dies ist in der Regel der Fall, wenn der Staubanfall und die Partikelanzahl des Luftstromes mit Fortschreiten des Saugbetriebes immer geringer wird. Der Sensor kann selbst dann noch kleinste Staubpartikel im Luftstrom sensieren, so dass er damit dem Benutzer bis zu einem sehr hohen Reinheitsgrad noch aussagekräftige Informationen liefern kann. Dies ist insbesondere für Allergiker sehr wichtig. Für diese ist es sehr vorteilhaft, dass mit der erfindungsgemäßen Staubanzeige der bekanntermaßen sehr allergenaktive Feinststaub erfasst werden kann.Particularly important is also the attachment of the piezoelectric sensor to the underside of the upper wall of the connection part. This decisively supports the special function of the system. If there are still heavy parts and particles in the suction air stream, they are usually transported below the sensor with the dust air flow in the collection chamber system of the vacuum cleaner. As a result, the sensor is protected and is not constantly exposed to the impact of heavy particles. Plus, he can develop his benefits when it matters. This is usually the case when the dust accumulation and the particle number of the air flow with the progress of the suction operation is getting lower. The sensor can even detect even the smallest dust particles in the air stream, so that it can still provide meaningful information to the user up to a very high degree of purity. This is very important especially for allergy sufferers. For this it is very advantageous that with the inventive Dust indicator known to be very allergenic particulate matter can be detected.
Ein weiterer Vorteil der neuen Anordnung besteht darin, dass eine Haltevorrichtung vorgesehen ist, an der alle wesentlichen Bauelemente befestigt sind, wie der Staubsensor, die Platine mit der Steuerungseinrichtung, der Unterdruckschalter und die Anzelgeelemente. Dadurch lässt sich eine raumsparende und kompakte Bauform verwirklichen. Weiterhin ist eine einfache Montage und Austauschbarkeit im Servicefall gewährleistet, da sich die Haltevorrichtung in die Öffnung des Anschlussteils der Saugdüse lösbar einsetzen lässt.Another advantage of the new arrangement is that a holding device is provided to which all the essential components are attached, such as the dust sensor, the board with the controller, the vacuum switch and the Anzelgeelemente. As a result, a space-saving and compact design can be realized. Furthermore, a simple assembly and interchangeability is guaranteed in case of service, since the holding device can be detachably inserted into the opening of the connection part of the suction nozzle.
Femer ist die Anordnung im eingebauten Zustand so ausgebildet, dass sich die Lufteinlassleitung des Druckschalters im Windschatten der Aufnahmevorrichtung befindet, wodurch Verschmutzungen an der Lufteinlassleitung verhindert werden, die ansonsten die ordnungsgemäße Funktion des Druckschalters stören würden.Furthermore, the arrangement is in the installed state designed so that the air inlet line of the pressure switch is in the lee of the recording device, whereby contamination on the air inlet line are prevented, which would otherwise interfere with the proper operation of the pressure switch.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigen:
Figur 1- einen Staubsauger mit Saugdüse, Saugrohr und Saugschlauch in einer verein- fachten Prinzipdarstellung,
Figur 2- die erfindungsgemäße Saugdüse in einer perspektivischen Darstellung im Detail,
Figur 3- die erfindungsgemäße Saugdüse in Seitenansicht und ausschnittsweise den Be- reich der Unterbringung der Sensor-, Anzeige- und Steuerungsvorrichtung im Anschlussstutzen im Schnitt,
Figur 4- den rohrförmigen Teil des Anschlussstutzen im Schnitt II - II in Richtung auf den Staubsensor gesehen,
Figur 5- das Anschlusstell der Saugdüse in einer perspektivischen Zusammenbau- zeichnung.
- FIG. 1
- a vacuum cleaner with suction nozzle, suction tube and suction hose in a simplified schematic representation,
- FIG. 2
- the suction nozzle according to the invention in a perspective view in detail,
- FIG. 3
- the suction nozzle according to the invention in side view and fragmentary the area of accommodation of the sensor, display and control device in the connecting piece in section,
- FIG. 4
- the tubular part of the connecting piece in section II - II seen in the direction of the dust sensor,
- FIG. 5
- the connection point of the suction nozzle in a perspective assembly drawing.
Die Prinzipzeichnung gemäß
Eine erfindungsgemäß ausgebildete Saugdüse ist in der
Auf der Oberseite des aufsteigenden Anschlussteils (2.2), an der nach vorne dem Düsenteil (2.1) der Saugdüse (2) zugewandten Seite, ist das Anschlussteil (2.2) mit einem Gehäuse (7) ausgebildet.On the upper side of the ascending connecting part (2.2), on the side facing the nozzle part (2.1) of the suction nozzle (2) side, the connecting part (2.2) is formed with a housing (7).
Die
In dem Gehäuse (7) ist im unteren Teil ein Batteriefach (8) vorgesehen. Im oberen Teil des Gehäuses (7) ist eine Aufnahmekammer (7.1) für die elektrische Steuerungsvorrichtung zur Staubflusssensierung sowie für die Staubfluss-Anzeigemittel gebildet. Ferner weist das Gehäuse an der nach oben, zum Anschlussstutzen (2.5) gerichteten Stirnfläche ein Sichtfenster (9) für die Staubfluss-Anzeige auf. Dieses Sichtfenster ist somit in Richtung der Anschlussstelle für das Saugrohr (3) ausgerichtet. Dadurch befindet sich die Anzeige (9) in einem gut sichtbaren Bereich, da der Benutzer beim Saugen die Anzeigevorrichtung entlang des Saugrohres (3) ständig im Visier hat. Das Batteriefach (8) ist mit einem abnehmbaren Deckel (8.1) versehen, wie dies bei batteriebetriebenen Geräten üblich ist. Die Batterien (13) können somit leicht zugänglich ausgewechselt werden.In the housing (7), a battery compartment (8) is provided in the lower part. In the upper part of the housing (7), a receiving chamber (7.1) for the electrical control device for the detection of dust flow as well as for the dust flow indicating means is formed. Furthermore, the housing has a viewing window (9) for the dust flow indicator on the end face facing upwards to the connection piece (2.5). This viewing window is thus aligned in the direction of the connection point for the suction pipe (3). As a result, the display (9) is in a highly visible area, since the user while sucking the display device along the suction pipe (3) has constantly in sight. The battery compartment (8) is provided with a removable cover (8.1), as is common in battery-powered devices. The batteries (13) can thus be easily accessible replaced.
Der piezoelektrische Staubsensor (11) ist in der oberen Wandung des Anschlussteils (2.2) in einem Aufnahmeteil (12.1) einer Haltevorrichtung (12) befestigt. Dabei ragt der piezoelektrische Staubsensor (11) schräg geneigt in den Staubflussstrom im Inneren des rohrförmigen Anschlussteils (2.2) hinein.The piezoelectric dust sensor (11) is fixed in the upper wall of the connecting part (2.2) in a receiving part (12.1) of a holding device (12). In this case, the piezoelectric dust sensor (11) projects obliquely inclined into the dust flow stream in the interior of the tubular connecting part (2.2).
In dem Gehäuse (7) sind die Batterien (13), eine Platine (14) für die elektronische Steuerungsvorrichtung sowie LED's (16) für die Staubflussanzeige untergebracht. Ein die Steuerungsvorrichtung aktivierbarer Unterdruckschalter (15) ist dabei auf der Platine (14) befestigt und steht mit seiner Lufteinlassleitung (15.1) über eine Öffnung (17) mit dem Staubflussstrom in Verbindung. Die Staubflussanzeigeelemente (16) sind ebenfalls auf der Platine (14) befestigt und auf das Sichtfenster (9) ausgerichtet, so dass die Anzeige nach außen darstellbar ist.In the housing (7) the batteries (13), a board (14) for the electronic control device and LED's (16) for the dust flow display are housed. A negative pressure switch (15) which can be activated by the control device is fastened on the circuit board (14) and communicates with its air inlet line (15.1) via an opening (17) with the dust flow stream. The Staubflussanzeigeelemente (16) are also mounted on the board (14) and aligned with the viewing window (9), so that the display is displayed to the outside.
Die LED's (16) sind auf der Platine (14) mit einem lichtstrahlungsabhängig abgestimmten Abstand zum Sichtfenster (9) angeordnet, so dass sich in Verbindung mit der Wahl eines geeigneten Materials für die Sichtscheibe eine flächige Ausleuchtung der Sichtscheibe ergibt. Weiterhin ist charakteristisch, dass die Sichtscheibe in Abhängigkeit der erkannten Verschmutzung immer nur in einer Farbe (grün, gelb, rot) hinterleuchtet wird, um zum einen den eindeutigen Saugfortschritt anzuzeigen und zum anderen um eine eindeutige Ablesbarkeit der Anzeige in allen möglichen Ausrichtungen zu ermöglichen, wenn die Saugdüse mit unterschiedlichen Saugrohren und Handgriffteilen des Saugschlauches des Staubsaugers kombiniert wird. Ferner trägt diese konstruktive Lösung dazu bei, dass eine Beruhigung der Anzeige erreicht wird und dass ein Flackern der LED's, bedingt durch die an sich stark schwankenden Signale des Staubsensors, weitgehend vermieden wird.The LEDs (16) are arranged on the circuit board (14) with a light radiation-dependent coordinated distance to the viewing window (9), so that in conjunction with the choice of a suitable material for the viewing window results in a planar illumination of the viewing window. Furthermore, it is characteristic that the viewing window is always backlit depending on the detected contamination in only one color (green, yellow, red), on the one hand to indicate the clear suction progress and on the other hand to allow a clear readability of the display in all possible orientations when the suction nozzle is combined with different suction pipes and handle parts of the suction hose of the vacuum cleaner. Furthermore, this design solution contributes to a reassurance of the display is achieved and that flickering of the LEDs, due to the strongly fluctuating signals of the dust sensor is largely avoided.
An der Unterseite des Anschlussteils (2.2) befindet sich eine verschließbare Öffnung (19), über die das Innere des Rohrstutzens z.B. zwecks Reinigung bzw. Auswechseln des Staubsensors (11) zugänglich ist.On the underside of the connecting part (2.2) is a closable opening (19) through which the interior of the pipe socket, for. for cleaning or replacing the dust sensor (11) is accessible.
Wie aus der
Der Staubsensor (11) ist vorteilhafterweise mit einem Neigungswinkel (23) von 25 bis 50 Grad in Relation zur oberen Wandung des Anschlussteils (2.2) im Staubluftstrom angeordnet.The dust sensor (11) is advantageously arranged with an inclination angle (23) of 25 to 50 degrees in relation to the upper wall of the connecting part (2.2) in the dust air flow.
Der Aufbau des Anschlussteils (2.2) mit dem auf seiner Oberseite gebildeten Gehäuse (7) und den darin untergebrachten Bauteilen geht im Detail aus der Zusammenbauzeichnung
Das Gehäuseoberteil ist eine Gehäuseschale (7.2), die der Form des Anschlussteils (2.2) auf seiner Oberseite angepasst ist. Das Anschlussteil (2.2) besitzt auf seiner Oberseite Rast- und Befestigungselemente (21, 22) mittels der die Gehäuseschale (7.2) an das Anschlussteil (2.2) per Rastung und per Verschraubung befestigbar ist.The upper housing part is a housing shell (7.2), which is adapted to the shape of the connecting part (2.2) on its upper side. The connecting part (2.2) has on its upper side latching and fastening elements (21, 22) by means of which the housing shell (7.2) to the connecting part (2.2) by latching and by screwing can be fastened.
Die Haltevorrichtung (12) nimmt auf ihrer oberen Seite die Platine (14) auf. Auf der Platine sind der Unterdruckschalter (15) und die Anzeigeelemente (16) sowie die hier nicht im einzelnen dargestellte Steuerungsschaltung angeordnet. Es kann zweckmäßig sein, hinter den Anzeigeelementen (16) einen in dieser Zeichnung nicht gezeigten Reflektor anzuordnen, der die Lichtstrahlen in Richtung auf das Sichtfenster (9) reflektiert.The holding device (12) takes on its upper side, the board (14). On the board of the vacuum switch (15) and the display elements (16) and the control circuit not shown here in detail are arranged. It may be appropriate behind the display elements (16) to arrange a reflector, not shown in this drawing, which reflects the light rays in the direction of the viewing window (9).
Über die Stromleitungselemente (10) wird die Verbindung zu den Batterien (13) hergestellt, wobei die Batterien (13) in dem Batteriefach (8) einsetzbar sind. Das Batteriefach ist mit dem Batteriefachdeckel (8.1) verschließbar.About the power line elements (10) the connection to the batteries (13) is produced, wherein the batteries (13) in the battery compartment (8) can be used. The battery compartment can be closed with the battery compartment cover (8.1).
Die Anordnung und Ausbildung der Haltevorrichtung (12) und der Platine (14) ist so getroffen, dass die Lufteinlassleitung (15.1) des Unterdruckschalters (15) über die in der Aufnahmevorrichtung (12.1) gebildete Öffnung (17) und den Stutzen (12.2) in Verbindung mit dem Inneren des Anschlussteils (2.2) gebracht werden kann. Das Aufnahmeteil (12.1) der Haltevorrichtung zur Aufnahme des Staubsensors (11) taucht bei der Befestigung der Haltevorrichtung (12) auf dem Anschlussteil (2.2) durch die auf der Oberseite dort gebildete Öffnung (20) in das Innere des Anschlussteil (2.2) ein. Der Staubsensor (11) ist somit dem Staubluftstrom ausgesetzt und die Lufteinlassleitung (15.1) des Druckschalters (15) liegt im Windschatten dieses Aufnahmeteils (12.1) der Haltevorrichtung. Dies hat den besonderen Vorteil, dass der Lufteinlass zum Druckschalter gegen Verschmutzungen geschützt angeordnet ist.The arrangement and design of the holding device (12) and the board (14) is such that the air inlet line (15.1) of the vacuum switch (15) on the in the receiving device (12.1) formed opening (17) and the nozzle (12.2) in Connection with the interior of the connecting part (2.2) can be brought. The receiving part (12.1) of the holding device for receiving the dust sensor (11) immersed in the attachment of the holding device (12) on the connecting part (2.2) through the opening formed there on the top (20) into the interior of the connecting part (2.2). The dust sensor (11) is thus exposed to the dust air flow and the air inlet line (15.1) of the pressure switch (15) lies in the lee of this receiving part (12.1) of the holding device. This has the particular advantage that the air inlet to the pressure switch is arranged protected against contamination.
Die Anzeigeelemente (16) sind als grüne, gelbe und rote LED's ausgebildet. Im zusammengebauten Zustand ist die Anordnung so getroffen, dass sich die Anzeigeelemente (16) in einer lichtstrahlungsmäßig abgestimmten Lage zum Sichtfenster (9) befinden. Zusammen mit der Auswahl eines geeigneten Materials für das Sichtfenster (9) ergibt sich eine flächige und gut sichtbare, flackerfreie Anzeige. Der Benutzer bekommt immer nur eine vollflächige Anzeige in den Farben rot, gelb und grün zu sehen, womit die Reinheitsgrade "verschmutzt", "leicht verschmutzt" und "sauber" dargestellt werden.The display elements (16) are designed as green, yellow and red LEDs. In the assembled state, the arrangement is such that the display elements (16) are in a light radiation moderately matched position to the viewing window (9). Together with the selection of a suitable material for the viewing window (9) results in a flat and highly visible, flicker-free display. The user always sees only a full-surface display in the colors red, yellow and green, showing the degrees of purity "dirty", "slightly dirty" and "clean".
Das Anschlussteil kann auch als selbständiges Teil bzw. Zubehörteil ausgebildet sein und lässt sich dann zwischen die Saugdüse (2) eines Staubsaugers (1) und dessen Saugrohr (3) oder dessen Saugschlauch (4) anschließen. Dabei ist das Anschlussteil in gleicher Weise wie das Anschlussteil (2.2) ausgebildet, nur dass zusätzlich an seinem unteren Ende ebenfalls ein Verbindungselement angeordnet ist, welches die Verbindung mit einem Anschlussstutzen des Düsenteils (2) herstellt.The connection part can also be designed as an independent part or accessory and can then be connected between the suction nozzle (2) of a vacuum cleaner (1) and its suction pipe (3) or its suction hose (4). In this case, the connecting part is formed in the same way as the connecting part (2.2), except that in addition at its lower end also a connecting element is arranged, which establishes the connection with a connecting piece of the nozzle part (2).
Es ist denkbar, die Erfindung auch bei einer anderen Ausgestaltung anzuwenden. So kann z.B. die Sensor- und Anzeigesteuerung über ein drahtloses Übertragungssystem mit einer Steuerungszentrale im Staubsauger kommunizieren, wodurch sich weitere Steuerungs- und Anzeigemöglichkeiten über den Saugprozess darstellen lassen. Femer ist es vorstellbar, bei elektrischen Bodendüsen die Stromversorgung zur Sensor- und Anzeigesteuerung Im Anschlussteil von dem Stromzuführungssystem der Bodendüse abzuleiten.It is conceivable to apply the invention in another embodiment. Thus, e.g. The sensor and display control communicate via a wireless transmission system with a control center in the vacuum cleaner, which can be further control and display options via the suction process. Furthermore, it is conceivable to derive the power supply for sensor and display control in electrical connection nozzles from the power supply system of the floor nozzle.
Claims (12)
- Suction nozzle for a vacuum cleaner (1), which suction nozzle can be connected to a suction pipe (3) and/or to a suction tube (4) of the vacuum cleaner,
the suction nozzle (2) comprising a nozzle part (2.1) which is provided with a suction mouth and can be connected to the suction pipe (3) and to the suction tube (4) of the vacuum cleaner via a tubular connection part (2.2),
comprising a dust sensor (11) arranged in the flow path of the vacuum cleaner, which dust sensor is arranged in the dust-laden air flow inside the ascending part of the connection part (2.2), and the signals of which are evaluated by an electronic control means,
during operation the control means controlling a display device (16, 9) which displays the dust flow, the display components (16) displaying the dust flow being arranged in a housing (7) or receiving space formed on the upper side of the tubular connection part (2.2), characterised in that
the dust sensor (11) can be inserted beneath the housing (7) via an opening located in the upper side of the connection part (2.2) and projects into the dust-laden air flow in proximity to the upper wall region of the connection part (2.2). - Suction nozzle for a vacuum cleaner according to claim 1,
characterised in that
the dust sensor (11) is a piezoelectric dust sensor which is fastened in a receiving part (12.1) of a holding device (12),
in that the holding device (12) is mounted on the upper side of the connection part (2.2), in that the receiving part (12.1) can be inserted, together with the sensor, into the interior of the tube nozzle via an opening (20) on the upper side of the connection part (2.2),
and in that the dust sensor (11) projects into the dust-laden air flow in an obliquely inclined arrangement. - Suction nozzle for a vacuum cleaner according to claim 2,
characterised in that
the dust sensor (11) is arranged in the dust-laden air flow at an inclination angle (23) of preferably 25 to 30 degrees in relation to the upper wall of the connection part (2.2). - Suction nozzle for a vacuum cleaner according to any one of claims 1 to 3, characterised in that
the control means and the display components (16) are arranged on a plate (14) and in that the plate (14) is fastened on the upper side of the holding device (12). - Suction nozzle for a vacuum cleaner according to claim 4,
characterised in that
the control means is battery-powered and can be activated by a vacuum switch (15),
in that the vacuum switch (15) is also arranged on the plate (14),
in that a battery compartment (8) which receives the batteries (13) is arranged in the housing (7) beneath the holding device (12),
and in that the batteries are connected to the control means via current conduction means. - Suction nozzle for a vacuum cleaner according to claim 5,
characterised in that
the vacuum switch (15) arranged above the plate (14) comprises an air inlet connecting piece (15.1) which is connected to the air flow inside the connection part (2.2) via an opening (17),
and in that the air inlet connecting piece (15.1) is arranged in the wind shadow of the receiving part (12.1) of the holding device (12) and the dust sensor (11) fastened therein. - Suction nozzle for a vacuum cleaner according to any one of claims 1 to 6, characterised in that
the housing (7) comprises an outwardly directed viewing window (9) for the dust flow display, through which the light signal of the display components (16) can be displayed outwardly. - Suction nozzle for a vacuum cleaner according to claim 7,
characterised in that
the display components (16) are arranged on the plate (14) at a defined distance, dependent on light radiation, from the viewing window (9), in such a way that, when the LEDs are activated and a suitable material is selected for the viewing window (9), the surface of the viewing window is illuminated. - Suction nozzle for a vacuum cleaner according to claim 8,
characterised in that
a reflector is mounted on the plate (14) behind the display components (16), which reflector reflects the light beams towards the viewing window (9). - Suction nozzle for a vacuum cleaner according to any one of claims 1 to 9,
characterised in that
a sealable opening (19) is arranged in the lower wall of the connection part (2.2) on the opposite side of the dust sensor (11), via which opening the interior and the dust sensor (11) are accessible from the outside for cleaning purposes. - Suction nozzle for a vacuum cleaner according to any one of claims 1 to 10,
characterised in that
locking and fastening members (21, 22) are integrally formed on the upper side of the connecting part, to which locking and fastening members a housing shell (7.1) forming the housing (7) and the holding device (12) for the dust sensor (11) can be fastened. - Suction nozzle for a vacuum cleaner, according to any one of claims 1 to 11,
characterised in that
a parking aid (18) is mounted on the lower side of the connecting part (2.2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102004007677A DE102004007677B4 (en) | 2004-02-16 | 2004-02-16 | Suction nozzle for a vacuum cleaner with a dust flow indicator |
PCT/EP2005/000944 WO2005077243A1 (en) | 2004-02-16 | 2005-02-01 | Suction nozzle for a vacuum cleaner, comprising a dust flow display device |
Publications (2)
Publication Number | Publication Date |
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EP1715782A1 EP1715782A1 (en) | 2006-11-02 |
EP1715782B1 true EP1715782B1 (en) | 2010-12-08 |
Family
ID=34813456
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Application Number | Title | Priority Date | Filing Date |
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EP05707099A Not-in-force EP1715782B1 (en) | 2004-02-16 | 2005-02-01 | Suction nozzle for a vacuum cleaner, comprising a dust flow display device |
Country Status (6)
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US (1) | US7805803B2 (en) |
EP (1) | EP1715782B1 (en) |
AT (1) | ATE490715T1 (en) |
DE (2) | DE102004007677B4 (en) |
ES (1) | ES2353522T3 (en) |
WO (1) | WO2005077243A1 (en) |
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US5815884A (en) * | 1996-11-27 | 1998-10-06 | Yashima Electric Co., Ltd. | Dust indication system for vacuum cleaner |
DE69607629T2 (en) * | 1996-11-29 | 2000-10-19 | Yashima Electric Co | vacuum cleaner |
DE10204070A1 (en) * | 2002-02-01 | 2003-08-14 | Miele & Cie | Method and circuit arrangement for avoiding the standby discharge of a battery-supplied signal evaluation circuit for a sensor |
DE20207071U1 (en) * | 2002-05-03 | 2002-09-05 | Wessel Werk Gmbh | Floor nozzle for vacuum cleaners |
-
2004
- 2004-02-16 DE DE102004007677A patent/DE102004007677B4/en not_active Expired - Fee Related
-
2005
- 2005-02-01 ES ES05707099T patent/ES2353522T3/en active Active
- 2005-02-01 US US10/598,007 patent/US7805803B2/en not_active Expired - Fee Related
- 2005-02-01 WO PCT/EP2005/000944 patent/WO2005077243A1/en active Application Filing
- 2005-02-01 EP EP05707099A patent/EP1715782B1/en not_active Not-in-force
- 2005-02-01 AT AT05707099T patent/ATE490715T1/en active
- 2005-02-01 DE DE502005010649T patent/DE502005010649D1/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012100052A1 (en) | 2012-01-04 | 2013-07-04 | Miele & Cie. Kg | Vacuum cleaner for cleaning floor surface, has dust flow display device provided with electro-active polymer portion that is controlled with control signal generated based on dust sensor signal, during operation of vacuum cleaner |
DE102012100052B4 (en) * | 2012-01-04 | 2016-09-22 | Miele & Cie. Kg | Vacuum cleaner with a dust flow indicator |
Also Published As
Publication number | Publication date |
---|---|
DE102004007677A1 (en) | 2005-09-01 |
US7805803B2 (en) | 2010-10-05 |
DE502005010649D1 (en) | 2011-01-20 |
ES2353522T3 (en) | 2011-03-02 |
EP1715782A1 (en) | 2006-11-02 |
US20070180648A1 (en) | 2007-08-09 |
WO2005077243A1 (en) | 2005-08-25 |
DE102004007677B4 (en) | 2011-11-17 |
ATE490715T1 (en) | 2010-12-15 |
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