EP1715782B1 - Buse d'aspiration pour aspirateur, a dispositif de visualisation du flux de poussieres - Google Patents

Buse d'aspiration pour aspirateur, a dispositif de visualisation du flux de poussieres Download PDF

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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
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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
Application number
EP05707099A
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German (de)
English (en)
Other versions
EP1715782A1 (fr
Inventor
Klemens Andrup
Diethard Becker
Seyfettin Kara
Oliver Liebig
Rainer Schultz
Heiko Stork
Stefan Tiekötter
Cornelius Wolf
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP1715782A1 publication Critical patent/EP1715782A1/fr
Application granted granted Critical
Publication of EP1715782B1 publication Critical patent/EP1715782B1/fr
Not-in-force legal-status Critical Current
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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
    • A47L9/28—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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Manipulator (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Cleaning In General (AREA)

Claims (12)

  1. Buse d'aspiration pour un aspirateur (1) qui peut être reliée à un tube d'aspiration (3) et/ou à un tuyau d'aspiration (4) de l'aspirateur,
    la buse d'aspiration (2) présentant une partie de buse (2.1), munie d'une embouchure d'aspiration, qui peut être raccordée par le biais d'une partie de raccordement (2.2) tubulaire au tube d'aspiration (3) ou au tuyau d'aspiration (4),
    avec un capteur de poussières (11), disposé dans la voie d'écoulement de l'aspirateur, qui est disposé à l'intérieur de la partie montante de la partie de raccordement (2.2) dans le flux air-poussières et dont les signaux sont analysés par un équipement de commande électronique, l'équipement de commande pilotant en fonctionnement un dispositif d'affichage (16, 9) indiquant le flux de poussières, les éléments d'affichage (16) indiquant le flux de poussières étant disposés dans un carter (7) ou espace de logement formé sur le côté supérieur de la partie de raccordement (2.2) tubulaire,
    caractérisée en ce que
    le capteur de poussières (11) peut être inséré sous le carter (7) à travers une ouverture ménagée sur le côté supérieur de la partie de raccordement (2.2) et fait saillie dans le flux air-poussières à proximité de la zone de paroi supérieure de la partie de raccordement (2.2).
  2. Buse d'aspiration pour un aspirateur selon la revendication 1,
    caractérisée en ce que
    le capteur de poussières (11) est un capteur de poussières piézoélectrique qui est fixé dans une partie de logement (12.1) d'un dispositif de retenue (12),
    en ce que le dispositif de retenue (12) est placé sur le côté supérieur de la partie de raccordement (2.2),
    en ce que la partie de logement (12.1) avec le capteur peut être insérée à l'intérieur de la tubulure à travers une ouverture (20) sur le côté supérieur de la partie de raccordement (2.2),
    et en ce que le capteur de poussières (11), dans un agencement incliné obliquement, fait saillie dans le flux d'air d'aspiration.
  3. Buse d'aspiration pour un aspirateur selon la revendication 2,
    caractérisée en ce que
    le capteur de poussières (11) est disposé dans le flux air-poussières avec un angle d'inclinaison (23) de préférence de 25 à 50 degrés par rapport à la paroi supérieure de la partie de raccordement (2.2).
  4. Buse d'aspiration pour un aspirateur selon une des revendications 1 à 3,
    caractérisée en ce que
    l'équipement de commande et les éléments d'affichage (16) sont disposés sur une platine (14), et en ce que la platine (14) est fixée sur le côté supérieur du dispositif de retenue (12).
  5. Buse d'aspiration pour un aspirateur selon la revendication 4,
    caractérisée en ce que
    l'équipement de commande est constitué de façon actionnée par pile et peut être activé par un interrupteur à dépression (15),
    en ce que l'interrupteur à dépression (15) est également disposé sur la platine (14),
    en ce que, dans le carter (7), au-dessous du dispositif de retenue (12), il est disposé un compartiment de piles (8) logeant les piles (13),
    et en ce que les piles sont en relation avec l'équipement de commande par le biais d'éléments de lignes de courant.
  6. Buse d'aspiration pour un aspirateur selon la revendication 5,
    caractérisée en ce que
    l'interrupteur à dépression (15) disposé au-dessus de la platine (14) présente une tubulure d'entrée d'air (15.1) qui est en relation avec le flux d'air à l'intérieur de la partie de raccordement (2.2) par le biais d'une ouverture (17),
    et en ce que la tubulure d'entrée d'air (15.1) est disposée pour être abritée du vent par la partie de logement (12.1) du dispositif de retenue (12) et du capteur de poussières (11) qui est fixé à l'intérieur.
  7. Buse d'aspiration pour un aspirateur selon une des revendications 1 à 6,
    caractérisée en ce que
    le carter (7) présente une fenêtre d'observation (9) orientée vers le haut pour l'affichage du flux de poussières et par le biais de laquelle les signaux lumineux des éléments d'affichage (16) peuvent être représentés vers l'extérieur.
  8. Buse d'aspiration pour un aspirateur selon la revendication 7,
    caractérisée en ce que
    les éléments d'affichage (16) sont disposés sur la platine (14) à une distance de la fenêtre d'observation (9) définie en fonction du rayonnement lumineux de sorte qu'il se produit un éclairage plan de la fenêtre d'observation en cas d'activation des LED et de choix de matériau approprié pour la fenêtre d'observation (9).
  9. Buse d'aspiration pour un aspirateur selon la revendication 8,
    caractérisée en ce
    qu'un réflecteur est mis en place sur la platine (14) derrière les éléments d'affichage (16) et réfléchit les rayons lumineux vers la fenêtre d'observation (9).
  10. Buse d'aspiration pour un aspirateur selon une des revendications 1 à 9,
    caractérisée en ce que,
    sur le côté opposé du capteur de poussières (11), dans la paroi inférieure de la partie de raccordement (2.2), il est disposé une ouverture (19) pouvant être fermée à travers laquelle l'espace intérieur et le capteur de poussières (11) sont accessibles de l'extérieur à des fins de nettoyage.
  11. Buse d'aspiration pour un aspirateur selon une des revendications 1 à 10,
    caractérisée en ce que,
    sur le côté supérieur de la partie de raccordement, il est formé des éléments d'encliquetage et de fixation (21, 22) sur lesquels une coque supérieure de boîtier (7.1) formant le carter (7) ainsi que le dispositif de retenue (12) pour le capteur de poussières (11) peuvent être fixés.
  12. Buse d'aspiration pour un aspirateur selon une des revendications 1 à 11,
    caractérisée en ce
    qu'une aide de rangement (18) est mise en place sur le côté inférieur de la partie de raccordement (2.2).
EP05707099A 2004-02-16 2005-02-01 Buse d'aspiration pour aspirateur, a dispositif de visualisation du flux de poussieres Not-in-force EP1715782B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007677A DE102004007677B4 (de) 2004-02-16 2004-02-16 Saugdüse für einen Staubsauger mit einer Staubfluss-Anzeigevorrichtung
PCT/EP2005/000944 WO2005077243A1 (fr) 2004-02-16 2005-02-01 Buse d'aspiration pour aspirateur, a dispositif de visualisation du flux de poussieres

Publications (2)

Publication Number Publication Date
EP1715782A1 EP1715782A1 (fr) 2006-11-02
EP1715782B1 true EP1715782B1 (fr) 2010-12-08

Family

ID=34813456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05707099A Not-in-force EP1715782B1 (fr) 2004-02-16 2005-02-01 Buse d'aspiration pour aspirateur, a dispositif de visualisation du flux de poussieres

Country Status (6)

Country Link
US (1) US7805803B2 (fr)
EP (1) EP1715782B1 (fr)
AT (1) ATE490715T1 (fr)
DE (2) DE102004007677B4 (fr)
ES (1) ES2353522T3 (fr)
WO (1) WO2005077243A1 (fr)

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US7805803B2 (en) 2010-10-05
DE502005010649D1 (de) 2011-01-20
ES2353522T3 (es) 2011-03-02
EP1715782A1 (fr) 2006-11-02
US20070180648A1 (en) 2007-08-09
WO2005077243A1 (fr) 2005-08-25
DE102004007677B4 (de) 2011-11-17
ATE490715T1 (de) 2010-12-15

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