EP2386237B1 - Filtre avec indicateur d'utilisation, et aspirateur doté d'un tel filtre - Google Patents

Filtre avec indicateur d'utilisation, et aspirateur doté d'un tel filtre Download PDF

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Publication number
EP2386237B1
EP2386237B1 EP11401061.4A EP11401061A EP2386237B1 EP 2386237 B1 EP2386237 B1 EP 2386237B1 EP 11401061 A EP11401061 A EP 11401061A EP 2386237 B1 EP2386237 B1 EP 2386237B1
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EP
European Patent Office
Prior art keywords
filter
air
vacuum cleaner
display device
air path
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.)
Active
Application number
EP11401061.4A
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German (de)
English (en)
Other versions
EP2386237A2 (fr
EP2386237A3 (fr
Inventor
Andre Bertram
Seyfettin Kara
Monika Seifert
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
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Miele und Cie KG
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Publication date
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Publication of EP2386237A2 publication Critical patent/EP2386237A2/fr
Publication of EP2386237A3 publication Critical patent/EP2386237A3/fr
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Publication of EP2386237B1 publication Critical patent/EP2386237B1/fr
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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
    • A47L9/10—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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • A47L9/122—Dry filters flat

Definitions

  • the invention relates to a filter, in particular a vacuum cleaner exhaust filter, with at least one filter medium, a filter inlet side and a filter outlet side, and with a display device, which is acted upon by the air to be filtered and is used in the filtered material as a display.
  • the display device is provided for displaying a degree of saturation of the filter.
  • the invention relates to a vacuum cleaner with such a filter.
  • a filter is from the EP 0 396 803 A1 known.
  • Vacuum cleaners in particular electric vacuum cleaners in a version as a household vacuum cleaner, work almost exclusively with multi-stage particle filters.
  • a prefilter - preferably designed as a dust bag - and behind an exhaust filter for removing fine dust that still happens to the bag are usually in front of a vacuum cleaner fan provided.
  • the latter for example, still absorbs the abrasion of carbon brushes or the like of the drive motor of the blower.
  • Both filter stages must be replaced as consumables by the user of the vacuum cleaner.
  • a user must be reliably and conveniently signaled when the bag or the exhaust filter must be changed as a result of reaching an upper limit for a filling or saturation.
  • For the dust bag sensors are usually used, which operate on the differential pressure principle.
  • For the exhaust filter is known to use an operating time of the filter as a criterion for a required replacement.
  • a time counter is considered, which is reset manually after inserting the exhaust filter by the user and the expiration of a fixed operating time signals the necessary change of the filter.
  • the algorithm for this and necessary operating and display elements are implemented in a vacuum cleaner control or part of the vacuum cleaner control.
  • the DE 102 29 796 describes a filter with a temperature-dependent integrating consumption indicator. The color of the indicator changes depending on the temperature always when the vacuum cleaner is operated for a long time.
  • the DE 602 057 53 T describes time-dependent consumption indicators that must be activated by the user by opening a fluid store. A colored indicator liquid diffuses into an absorbent material in the consumption indicator, which then discolors over time and thus represents a measure of the useful life.
  • a filter of the type described here and below is a vacuum cleaner exhaust filter, that is, a filter which is arranged in the exhaust air flow of the suction fan of an electric vacuum cleaner, for example, acts as a particulate matter or hygiene filter and is sometimes referred to as blow-out or post-filter.
  • the display device is advantageously acted upon by the air to be filtered by the latter at least laterally adjoins the or each filter medium and extends from the filter input side to the filter output side, wherein the display device of a the filter input side outgoing air path, which is covered on the filter output side with a viewing window and wherein on the filter output side below the lens, a visible in the air path flow-through consumption indicator is visible.
  • the consumption indicator visible below the lens is used to collect the filtered material and thus as an indicator for a required filter change or as a fill level control of the filter.
  • the advantage of the invention is that filtered material itself is used to display the possibly necessary filter change or as level control of the filter.
  • the display device is charged with the air to be filtered, so that from the filtered air to be filtered material can be collected in or on the display device and displays the increasing degree of saturation of the filter with increasing amount of the filtered material.
  • the vacuum cleaner 10 comprises a control computer 28, which is in operative connection with a vacuum cleaner 10 arranged on the operating and display unit 30. About the signals of the control and display unit 30, the suction power of the blower 22 and thus a quantity of recordable dust 18 is set by the control computer 28 through the vacuum cleaner 10.
  • control and display unit 30 indicates a change of the vacuum cleaner exhaust filter 26 which becomes necessary as a function of z.
  • the present invention is based on the approach, a color change or other change of an optical property of a attached to the vacuum cleaner exhaust filter 26 or otherwise suitably combined with the vacuum cleaner exhaust filter 26 consumption indicator by one with the dust receptacle of the vacuum cleaner 10 and thus with the Dust entry in the vacuum cleaner exhaust filter 26 correlated size to control, so as to realize a consumption and use or saturation-dependent filter change display or level control of the filter.
  • FIG. 2 schematically simplified by the example of a designed as a HEPA filter vacuum cleaner exhaust filter 26 a filter 40 according to the approach according to the invention.
  • the only partially visible filter 40 includes a display device 42, which is acted upon by the air to be filtered and is used in the filtered material as a display.
  • the filter 40 with display device 42 is shown enlarged.
  • the illustrated filter 40 comprises at least one filter medium, in this case a carbon filter 44 and a filter fleece 46, and with its geometry and its installation direction, the filter has a filter inlet side 48 and a filter outlet side 50.
  • the air to be filtered during operation of the filter 40 is represented by a plurality of parallel oriented and pointing in the direction of the filter 40 arrows.
  • the display device 42 adjoins the filter 40 or the or each filter medium at least on one side and extends from the filter input side 48 to the filter output side 50. It comprises an air path 52 emanating from the filter input side 48 and covered with a viewing window 54 on the filter output side 50 is.
  • a flow-through consumption indicator 56 is arranged below the viewing window 54 in the air path 52 in a position visible to a user.
  • Filtered material serves as an indication insofar as it is caught by the flow-through consumption indicator 56 and remains there, for example due to deviating optical properties visible.
  • the flow-through consumption indicator 56 for example, as a light, especially white fleece, is carried out, particulate matter, in particular abrasion of carbon brushes of the drive motor of the vacuum cleaner fan 22 is contrasting, so that the extent caused change in color of the surface of the flow through consumption indicator 56 as a measure of saturation of the filter 40 as a whole or as an indication of a possibly already reached saturation limit of the filter 40 functions.
  • the lens 54 during operation of the filter 40 for an air flow in the air path 52 acts as a diversion and indeed as a deflection by or in the consumption indicator 56.
  • the air path 52 ends in the region of the filter input side 48 in a parallel to the filter input side 48 oriented channel portion, so that with the end of the channel section a nozzle 58 directed towards the rest of the filter (venturi nozzle) yields.
  • the end of the channel section which acts as a venturi nozzle, effects a venturi effect and thus a negative pressure at the end of the air path 52, so that air to be filtered is sucked into the air path 52 due to this negative pressure.
  • Fig. 3 shows in the same way as Fig. 2 and with otherwise identical components a filter 40 with a display device 42, in which the air path 52 leads through the flow-through consumption indicator 56 to the filter output side 50.
  • the visor 54 and the end of the air path 52 are then arranged together on the filter output side 50 forming surface of the display device 42.
  • an effective width of a filter inlet side inlet of the air path 52 is greater than an effective width of an outlet of the air path 52.
  • the practical size ratio is an inlet that is twice as large as the outlet, or a three or four times larger inlet, etc. into consideration.
  • Fig. 4 shows a particular embodiment of the display device 42 without a laterally adjoining or surrounding filter 40 (FIG. Fig. 2 ; Fig. 3 ).
  • This embodiment is characterized by a symmetrical, in particular mirror-symmetrical, arrangement of two air paths 52, each with one viewing window 54 and one respective throughflowable consumption indicator 56.
  • a common viewing window and / or a common consumption indicator may also be considered (not shown).
  • Between the at least two symmetrically arranged air paths 52 beyond (not shown) can still be a separation layer.
  • the dashed arrows show the flow path of the filter to be filtered Air, so that even in this configuration, the display device 42 is acted upon by the air to be filtered. As the air to be filtered flows through the or each consumption indicator 56 and collects this filtered material, filtered material also serves as an indication of a degree of saturation of the filter 40 combined with the display device in this configuration of the display device 42.
  • Fig. 5 shows an alternative embodiment for a display device 42 with an air path 52 leading from the filter input side 48 via the flow-through consumption indicator 56 to the filter output side 50.
  • the configuration is thus similar to FIG Fig. 3 and differs z. B. in terms of the arrangement of the flow-through consumption indicator 56, which is horizontally oriented here with its entire surface.
  • Fig. 6 shows in the upper and the lower view a schematically simplified three-dimensional view of a filter 40 with a laterally arranged display device 42, which is based on the principle according to the approach of the invention.
  • the display device 42 are in the combination combined with the filter 40 configuration only the outlet, so an exhaust port 60 at the end of the air path 52 (FIG. Fig. 2 ; Fig. 3 ; Fig. 4 ; Fig. 5 ) and the consumption indicator 56 located below a viewing window 54.
  • the filter 40 with the display device 42 is also accessible for visual inspection by the user, so that he is on the basis of the amount of material filtered by the consumption indicator 56 and the resulting change in color of the consumption indicator 56, the degree of saturation of the Detect filters 40 and may make or cause a filter change.
  • an electronic evaluation of the consumption indicator 56 comes into consideration, because with increasing amount of the filtered material and its optical properties, in particular its reflection properties, change, with an electronic sensors in the manner of a reflection light barrier or the like is evaluable.
  • a filter 40 in particular a filter 40 functioning as a vacuum cleaner exhaust filter 26, is provided with a display device 42 which is acted upon by the air to be filtered and which uses filtered material as an indicator, e.g. by this is reflected on acting as a consumption indicator 56, flow-through non-woven or the like and there is a discoloration of the consumption indicator 56 or causes, which can be evaluated by a user by optical inspection.

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

Claims (8)

  1. Filtre (40), en particulier filtre à air sortant d'aspirateur (26), comportant au moins un milieu filtrant (44, 46), un côté d'entrée de filtre (48) et un côté de sortie de filtre (50), et un dispositif d'affichage (42) alimenté par l'air à filtrer et dans lequel le matériau filtré sert d'affichage, caractérisé en ce que le dispositif d'affichage (42) est adjacent au moins latéralement au ou à chaque milieu filtrant (44, 46) et s'étend du côté d'entrée du filtre (48) au côté de sortie du filtre (50), le dispositif d'affichage (42) comprenant un passage d'air (52) émanant du côté d'entrée du filtre (48), lequel passage d'air est recouvert, sur le côté de sortie du filtre (50), d'une fenêtre de visualisation (54), et un indicateur de consommation pouvant être traversé (56), disposé dans le passage d'air (52), étant visible au niveau du côté de sortie du filtre (50) en-dessous de la fenêtre de visualisation (54).
  2. Filtre (40) selon la revendication 1, dans lequel la fenêtre de visualisation (54) sert de déviation à travers l'indicateur de consommation (56) pendant le fonctionnement du filtre (40) pour un courant d'air dans le passage d'air (52).
  3. Filtre (40) selon la revendication 2, dans lequel le passage d'air (52) est dirigé de la fenêtre de visualisation (54) au côté d'entrée du filtre (48) par l'intermédiaire de l'indicateur de consommation pouvant être traversé (56).
  4. Filtre (40) selon la revendication 3, dans lequel le passage d'air (52) se termine dans la zone du côté d'entrée du filtre (48) dans une section de canal orientée parallèlement au côté d'entrée du filtre (48).
  5. Filtre (40) selon la revendication 1 ou 2, dans lequel le passage d'air (52) est dirigé au côté de sortie du filtre (50) par l'intermédiaire de l'indicateur de consommation (56).
  6. Filtre (40) selon l'une des revendications 1 à 5, comportant une disposition symétrique, en particulier présentant une symétrie en miroir, de deux passages d'air (52) comportant chacun une fenêtre de visualisation ou une fenêtre de visualisation commune (54) et chacun un indicateur de consommation ou un indicateur de consommation commun (56), comportant ou dépourvu de couche de séparation entre les deux passages d'air (52).
  7. Filtre (40) selon l'une des revendications 1 à 6, dans lequel la fenêtre de visualisation (54) présente une lentille.
  8. Aspirateur (10), en particulier un aspirateur électrique, comportant un filtre (40) selon l'une des revendications précédentes.
EP11401061.4A 2010-05-05 2011-04-13 Filtre avec indicateur d'utilisation, et aspirateur doté d'un tel filtre Active EP2386237B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010016788A DE102010016788B4 (de) 2010-05-05 2010-05-05 Filter, Staubsauger mit einem solchen Filter und Verwendung eines solchen Filters als Staubsaugerabluftfilter

Publications (3)

Publication Number Publication Date
EP2386237A2 EP2386237A2 (fr) 2011-11-16
EP2386237A3 EP2386237A3 (fr) 2014-05-21
EP2386237B1 true EP2386237B1 (fr) 2019-03-20

Family

ID=44359649

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Application Number Title Priority Date Filing Date
EP11401061.4A Active EP2386237B1 (fr) 2010-05-05 2011-04-13 Filtre avec indicateur d'utilisation, et aspirateur doté d'un tel filtre

Country Status (3)

Country Link
US (1) US8539638B2 (fr)
EP (1) EP2386237B1 (fr)
DE (1) DE102010016788B4 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090188845A1 (en) * 2008-01-28 2009-07-30 Cindex Holdings Limited (A Hong Kong Corporation) Cleaning system container having a porthole
US9492580B2 (en) * 2014-07-24 2016-11-15 Eliyahu DAVID System and method for the safe provision of ozone
CH715633A2 (de) * 2018-12-12 2020-06-15 Kemaro Ag Gerät und Verfahren zur selbsttätigen Ausführung einer Tätigkeit, insbesondere zur Reinigung verschmutzter Oberflächen.

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US2897604A (en) * 1957-02-20 1959-08-04 Scott & Fetzer Co Demonstration accessory for vacuum cleaners
US4530706A (en) * 1981-10-19 1985-07-23 American Optical Corporation Respirator cartridge end-of-service life indicator
EP0396803B1 (fr) * 1989-05-11 1992-09-02 Siemens Aktiengesellschaft Dispositif de filtrage pour un aspirateur de poussières
US6315821B1 (en) * 2000-05-03 2001-11-13 Hamilton Beach/Proctor-Silex, Inc. Air filtration device including filter change indicator
US6497756B1 (en) * 2000-09-12 2002-12-24 North Safety Products, Inc. Service life indicator for respirator cartridge
GB0116878D0 (en) 2001-07-11 2001-09-05 Timestrip Ltd Time indicator
DE10229796A1 (de) 2002-07-03 2004-01-15 Vorwerk & Co. Interholding Gmbh Filter für einen Staubsauger sowie Staubsauger mit einem Vorfilter und einem Ausblasfilter
US7418763B2 (en) * 2003-02-26 2008-09-02 Black & Decker Inc. Hand vacuum with filter indicator
US7281345B2 (en) 2004-02-04 2007-10-16 Bedford Industries, Inc. Merchandise labeling
DE202004003082U1 (de) * 2004-02-28 2004-04-29 Branofilter Gmbh Filterbeutel für Staubsauger
US7442237B1 (en) * 2004-09-16 2008-10-28 The United States Of America As Represented By The Secretary Of The Army Multi-agent end-of-service-life indicator for respirator filters
US7749303B2 (en) * 2007-08-30 2010-07-06 The Boeing Company Service life indicator for chemical filters
US8225782B2 (en) * 2009-05-22 2012-07-24 3M Innovative Properties Company Filter cartridge having location-registered view window for end-of-service-life-indicator (ESLI)

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
EP2386237A2 (fr) 2011-11-16
DE102010016788A1 (de) 2011-11-10
DE102010016788B4 (de) 2012-01-19
EP2386237A3 (fr) 2014-05-21
US20110271479A1 (en) 2011-11-10
US8539638B2 (en) 2013-09-24

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