EP1118303B1 - Procédé et dispositif pour nettoyer le filtre d'un aspirateur muni d'une chambre de filtration cloisonnée - Google Patents

Procédé et dispositif pour nettoyer le filtre d'un aspirateur muni d'une chambre de filtration cloisonnée Download PDF

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Publication number
EP1118303B1
EP1118303B1 EP20000127429 EP00127429A EP1118303B1 EP 1118303 B1 EP1118303 B1 EP 1118303B1 EP 20000127429 EP20000127429 EP 20000127429 EP 00127429 A EP00127429 A EP 00127429A EP 1118303 B1 EP1118303 B1 EP 1118303B1
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EP
European Patent Office
Prior art keywords
filter
air
chamber
sealing elements
vacuum cleaner
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.)
Expired - Lifetime
Application number
EP20000127429
Other languages
German (de)
English (en)
Other versions
EP1118303A3 (fr
EP1118303A2 (fr
Inventor
Silke Dipl. Ing. Meyer
Johann Machinenbautechniker Vogel
Günther Feinmechaniker Werbach
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.)
WAP Reinigungssysteme GmbH and Co
Original Assignee
WAP Reinigungssysteme GmbH and Co
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 WAP Reinigungssysteme GmbH and Co filed Critical WAP Reinigungssysteme GmbH and Co
Publication of EP1118303A2 publication Critical patent/EP1118303A2/fr
Publication of EP1118303A3 publication Critical patent/EP1118303A3/fr
Application granted granted Critical
Publication of EP1118303B1 publication Critical patent/EP1118303B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L9/20—Means for cleaning filters

Definitions

  • the subject of the present invention is a method and a device for the filter cleaning of a filter of a vacuum cleaner according to the preamble of claims 1 and 7.
  • Such a filter cleaning is, for example, with the subject of DE 41st 38 223 C1 became known.
  • a movable with a connecting rod Supply air duct used, which optionally one of the two openings of the filter covered and tightly connected to the external air flow.
  • that is Switching element, which the Abtheses Kunststoff to different areas of the Filters deflected, relatively complicated.
  • DE 41 38 223 C1 is a vacuum cleaner with two distinct filters disclosed, wherein the filters depending on the control during operation be cleaned and the two filters are completely independent filters which is connected via a flexible hose mechanical device are connected and depending on the control state of the both filters are supplied with false air from the back of the filter and this in the Countercurrent cleans.
  • the main disadvantage of this invention is that here are two independent filters to clean and that to clean the filter a complex, mechanical Control device is necessary.
  • the invention is therefore based on the object, the subdivision of Filter range of a ring filter in at least two different, to be cleaned Design filter areas so that thereby a much simpler and improved operation is possible.
  • the internal structure of the filter unit is designed so that in the interior the ring filter, a chamber-like separation device is arranged, which is a round circumferential, radial distance from the inner surface of the ring filter forms and which in the height cross-section about an electric machine anchor-shaped profile having two mirror-symmetrically arranged, circular chamber walls are opposite to each other through a central Partition are sealingly connected together.
  • the separating device is such that the Chamber walls touch each other or merge into each other and about at the point at which in the first embodiment the interruption is one air opening is located in the closed wall. These Air opening is round or oval.
  • the distance between the inside the ring filter and the outside of the chamber walls is at least twice so bridged by means of elastic sealing elements that at least form two separate chambers.
  • the core of the filter cleaning is so that you around the ring filter around two defined different chambers, wherein the one chamber of the Suction air flow is flowed through and the filter accordingly in the operation Condition the dust particles filters out, while the other by means of the filter chamber separate second chamber is intended to be blown in countercurrent to clear the filter in this area.
  • the radially outer space surrounding the chamber wall forms a radial outside annular space between the inside of the ring filter and the Outside of this chamber-like separation device, wherein in the area of this Annular space at least two opposing, inflatable Seals are arranged.
  • These sealing elements are used for subdivision of the annular space, even if the distance of the ring filter to internal chamber-like separation device not the same size at each point is different in different places. The compensation for different distances is determined by the variable volume and Form change of the individual sealing elements achieved.
  • the elastic sealing elements by volume change deform in such a way that they divide the filter unit into at least one subarea, which serves for the purification of the polluted air, and in at least one Subdivision, which is cleaned by the supplied false air, divide.
  • the volume change of the approximately bag-shaped sealing elements takes place a lower air pressure in the outer environment of the sealing elements against the air pressure in its inner area. This is achieved by that the pressure difference between the outer and the inner region of Sealing elements by generating a negative pressure in the interior of the Ring filter against the normal air pressure takes place.
  • the negative pressure in the inner region of the ring filter is through the implementation an air flow through it.
  • the sealing elements resemble by their elastic volume change Distance differences between ring filter and chamber walls, which on Reason not centered positioning of the ring filter in the housing arise. she denote the distance between these two units even though if the distance has greater differences. This has the advantage that the Ring filter when inserting no longer needs to be centered exactly. Incidentally, can For filtering a commercial filter can be used, which no Additional elements required.
  • the sealing elements are in the operating state both on the inside of the Ring filter as well as on the outer sides of the chamber-like separator on. With their underside they stand on the bottom surface of the chamber-like Separator in connection.
  • the chamber-like separation device is by means of an approximately centrally located within the annular chamber wall region arranged partition wall for air flow in divided into two subareas. This results in two partial air flows.
  • the air flow to be cleaned by means of the ring filter, and the false air flow, which by means of the same turbine as the suction air flow is generated, but by means of a second, separate air guide system to a Control unit is guided. From this control unit, the false air flow in Dependency of certain parameters in one or the other inner area fed to the chamber-like separator, which is within this Chamber forms an overpressure of one of the two partial air flows in the Represents filter unit.
  • FIG. 1 shows an illustration of the present invention in vertical Sectional view through the filter unit 1 with schematically arranged Control for the air guidance of the false air for the cleaning of the respective Filter sections.
  • Control for the air guidance of the false air for the cleaning of the respective Filter sections.
  • the support plate 5 forms an outer seal over a Container seal 4 with the vacuum cleaner tank 10.
  • This has in itself known manner, a hose connection 11 for the vacuum cleaner hose on, so that so the sucked dirt into the interior 8 of the container 10th is sucked in and directed from outside to inside the ring filter contaminated air is applied.
  • each sealing element consists of a balloon-like elastomeric material which is bag-like is open, so that it is closed circumferentially and only an upper Opening for accessing the atmospheric pressure in the interior of the Has sealing element 3.
  • a chamber-like separator 12 arranged, which essentially in profile an electric machine anchor equivalent.
  • Two mutually mirror-symmetrically arranged, part-annular chamber walls 19,20 are opposite each other and are through a central partition wall 18th connected with each other.
  • the chamber-like separator 12 also has one through bottom surface 21.
  • the housing walls of the chamber-like separator 12 are impermeable to air and between the chamber walls 19,20 becomes a first Air opening 6 and an opposite air opening 14 defined.
  • It is a general switching device 23 is provided with which alternatively air from the outside in the direction of arrow 13 on the outside of the ring filter is passed and - when switching the switching device 23 - the air from Interior of the filter is directed against the inner surface, so that the filter cleaned from the inside to the outside.
  • the switching device 23 is shown only schematically. It can only be seen that it is a switching valve 22, for example, with a pressure-controlled flap, so that either selectively via the inlet 24, the air is directed in the upper half of the ring filter of Figure 2 for the purpose of cleaning and via the outlet 25th the purified from the ring filter air flows out in the lower area in the direction of arrow 15 and is fed again in the direction of arrow the opposite side.
  • the sealing element 3 ' is shown in the non-inflated state, while on the right side of the illustration, the sealing element is shown in the inflated state.
  • the area under the ring filter is used for the separation of dirt particles from the teat stream, while the lower Part of the ring filter is cleaned.
  • the analog apply Conditions reversed i. E. the upper part of the ring filter is cleaned and the upper portion of the ring filter is used for the separation of dirt particles from the teat stream.
  • Sealing elements 3 instead of two opposing sealing elements 3 can also several Sealing elements are arranged so that not only two each other opposite different regions 16,17 defined on the ring filter but more than two such areas.
  • the shape of the sealing element (oval, round, square or the like) is indifferent. It is only important that the sealing element 3 is able to inflate upon application of a pressure difference between the interior and the external environment and sealingly apply both to the chamber wall 19 and 20 and to the inner wall of the ring filter 2.
  • the sealing element 3 applies in this case to some folds of the ring filter 2, so that it can even be provided that the sealing element with its outer contour corresponds approximately to the fold contour of the ring filter to provide an even better sealing contact surface on the ring filter.
  • ring filter 2 does not depend on the nature and design of the ring filter 2; other types of filters may also be used, e.g. not from consist of folded filter paper.
  • porous filter materials It is only essential that just by the inflatable sealing elements at least two areas on Ring filter are defined, which has a range for the deposition of Represent dirt particles from the teat stream, while the other area in return is being cleaned just during this time.
  • the opening 27 may in this case via a channel not shown with the Be connected to the atmosphere.
  • the two sealing elements are interconnected by air conduction and only the one sealing element Opening 27, while the other sealing element completely closed is.
  • the sealing element must, moreover, also sealingly on the support plate 5 and also rest against the ring filter, as shown in Figure 1.
  • the air openings are formed so that they are not as oval Openings between the chamber walls 18 and 19 appear but they are executed as interruptions between the two chamber walls 18 and 19.
  • This means in the plan view of a section in the axis A-B, as shown in FIG. 4 is the chamber-like separator 12 as an anchor-shaped structure about detect.

Landscapes

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

Claims (14)

  1. Procédé pour nettoyer le filtre d'un aspirateur à chambre de filtration cloisonnée, étant précisé que l'unité de filtration se compose d'un boítier dans lequel est disposé un filtre annulaire, le boítier est alimenté d'un côté avec l'air à purifier, grâce à un raccord de tuyau, et est pourvu de l'autre côté d'un raccordement pour l'air entré non sali qui est amené pour nettoyer la zone du filtre à nettoyer, et que l'air est guidé dans le boítier à l'aide d'une commande appropriée pour la circulation d'air de telle sorte qu'il nettoie une partie du filtre annulaire, caractérisé en ce qu'il est prévu à l'intérieur du filtre annulaire un dispositif de séparation en forme de chambre et des moyens d'étanchéité élastiques, des éléments d'étanchéité individuels servant à diviser l'unité de filtration en au moins deux zones partielles et les éléments d'étanchéité élastiques (3, 3') se déformant en raison de leur variation de volume de telle sorte qu'ils divisent ladite unité de filtration (1) en au moins une zone partielle qui sert à purifier l'air sali, et au moins une zone partielle qui est nettoyée par l'air entré amené.
  2. Procédé selon la revendication 1, caractérisé en ce que la variation de volume des éléments d'étanchéité en forme de sacs (3, 3') est provoquée par une pression d'air inférieure dans la zone environnante extérieure des éléments d'étanchéité (3, 3') par rapport à la pression d'air dans leur zone intérieure.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la différence de pression entre les zones extérieure et intérieure des éléments d'étanchéité (3, 3') est obtenue grâce à la production d'une dépression dans la zone intérieure du filtre annulaire (2) par rapport à la pression d'air normale.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la dépression dans la zone intérieure du filtre annulaire (2) se forme en raison du passage d'un courant d'air dans celui-ci.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que les éléments d'étanchéité (3, 3'), grâce à leur variation de volume élastique, compensent de manière étanche les différences d'écartement entre le filtre annulaire (2) et les parois de chambre (19, 20) qui apparaissent en raison d'un positionnement non centré du filtre annulaire dans le boítier.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que le nettoyage d'une partie du filtre annulaire (2) par l'air entré amené se fait pendant qu'une autre partie du filtre annulaire (2) purifie l'air aspiré sali.
  7. Aspirateur avec une unité de filtration et un dispositif de nettoyage d'unité de filtration pour nettoyer ladite unité de filtration qui est pourvue d'une chambre de filtration cloisonnée, étant précisé que l'unité de filtration se compose d'un boítier dans lequel est disposé un filtre annulaire, que le boítier est alimenté d'un côté avec l'air à purifier, grâce à un raccord de tuyau, et est pourvu de l'autre côté d'un raccordement pour l'air entré non sali qui est amené pour nettoyer la zone du filtre à nettoyer, et que l'air est guidé dans le boítier à l'aide d'une commande appropriée pour la circulation d'air de telle sorte qu'il nettoie une partie du filtre annulaire, caractérisé en ce que l'unité de filtration (1) comporte des éléments d'étanchéité élastiques (3, 3') entre le côté intérieur d'un filtre annulaire (2) et les côtés extérieurs (19, 20) du dispositif de séparation en forme de chambre (12) disposé à l'intérieur du filtre annulaire, et est ainsi divisée en au moins deux zones partielles étanches l'une par rapport à l'autre.
  8. Aspirateur selon la revendication 7, caractérisé en ce que les éléments d'étanchéité (3, 3') ont à peu près la forme de sacs.
  9. Aspirateur selon la revendication 7, caractérisé en ce que l'espace intérieur des éléments d'étanchéité (3, 3') communique avec l'air ambiant grâce à une ouverture (27).
  10. Aspirateur selon l'une des revendications 7 à 9, caractérisé en ce que les éléments d'étanchéité (3, 3'), en fonctionnement, sont appliqués à la fois contre le côté intérieur du filtre annulaire (2) et contre les côtés extérieurs (19, 20) du dispositif de séparation en forme de chambre (12).
  11. Aspirateur selon l'une des revendications 7 à 10, caractérisé en ce que les éléments d'étanchéité (3, 3') sont reliés, avec leur côté inférieur, à la surface inférieure du dispositif de séparation en forme de chambre (12).
  12. Aspirateur selon l'une des revendications 7 à 11, caractérisé en ce que le dispositif de séparation en forme de chambre (12) est divisé en deux zones partielles à l'aide d'une cloison (18) disposée de manière à peu près centrée à l'intérieur de la zone annulaire de paroi de chambre (19, 20).
  13. Aspirateur selon la revendication 12, caractérisé en ce que les zones de paroi de chambre (19, 20) comportent, à peu près à mi-distance entre les points de liaison avec la cloison (18), des ouvertures d'air ovales.
  14. Aspirateur selon la revendication 12, caractérisé en ce que les zones de paroi de chambre (19, 20) sont interrompues à peu près à mi-distance entre les points de liaison avec la cloison (18).
EP20000127429 1999-12-18 2000-12-14 Procédé et dispositif pour nettoyer le filtre d'un aspirateur muni d'une chambre de filtration cloisonnée Expired - Lifetime EP1118303B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999161308 DE19961308A1 (de) 1999-12-18 1999-12-18 Verfahren und Vorrichtung zur Filterabreinigung eines Schmutzsaugers mit Filterkammerunterteilung
DE19961308 1999-12-18

Publications (3)

Publication Number Publication Date
EP1118303A2 EP1118303A2 (fr) 2001-07-25
EP1118303A3 EP1118303A3 (fr) 2002-12-11
EP1118303B1 true EP1118303B1 (fr) 2005-12-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000127429 Expired - Lifetime EP1118303B1 (fr) 1999-12-18 2000-12-14 Procédé et dispositif pour nettoyer le filtre d'un aspirateur muni d'une chambre de filtration cloisonnée

Country Status (3)

Country Link
EP (1) EP1118303B1 (fr)
DE (2) DE19961308A1 (fr)
DK (1) DK1118303T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11627863B2 (en) 2017-01-13 2023-04-18 Black & Decker Inc. Dust collection box

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7673369B2 (en) 2005-07-22 2010-03-09 Panasonic Corporation Of North America Floor cleaning apparatus with filter cleaning system
US7908707B2 (en) 2006-03-08 2011-03-22 Panasonic Corporation Of North America Floor cleaning apparatus with filter cleaning system
DE102008047047B4 (de) 2008-09-13 2012-09-20 Alto Deutschland Gmbh Filterabreinigung in einem Schmutzsauger mit Klappenelement
US9271620B2 (en) 2012-03-27 2016-03-01 Daryl S. Meredith Vacuum
GB2546541B (en) 2016-01-22 2018-07-04 Dyson Technology Ltd Vacuum cleaning apparatus
GB2546543B (en) 2016-01-22 2019-01-02 Dyson Technology Ltd Separating apparatus and vacuum cleaner
GB2546542B (en) 2016-01-22 2018-07-04 Dyson Technology Ltd Vacuum cleaner
CN113545595A (zh) * 2021-08-02 2021-10-26 卜磊 一种便于保护车漆的车载除尘刷

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672511A1 (fr) * 1991-02-13 1992-08-14 Dominique Bacot Cartouche filtrante.
DE4138223C1 (en) * 1991-11-21 1993-02-18 Alfred Kaercher Gmbh & Co, 7057 Winnenden, De Vacuum cleaner with cleaning unit for filter - has separate filters closing through holes in parallel between dust collector and suction unit
FI100641B (fi) * 1996-05-02 1998-01-30 Markku Vanhala Puhdistuslaite pölynsuodatuslaitteen suodatinta varten

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11627863B2 (en) 2017-01-13 2023-04-18 Black & Decker Inc. Dust collection box

Also Published As

Publication number Publication date
EP1118303A3 (fr) 2002-12-11
DE50011813D1 (de) 2006-01-12
DE19961308A1 (de) 2001-07-12
DK1118303T3 (da) 2006-04-10
EP1118303A2 (fr) 2001-07-25

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