EP2052660B1 - Sauggerät - Google Patents

Sauggerät Download PDF

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Publication number
EP2052660B1
EP2052660B1 EP08017768A EP08017768A EP2052660B1 EP 2052660 B1 EP2052660 B1 EP 2052660B1 EP 08017768 A EP08017768 A EP 08017768A EP 08017768 A EP08017768 A EP 08017768A EP 2052660 B1 EP2052660 B1 EP 2052660B1
Authority
EP
European Patent Office
Prior art keywords
opening
stem
filter
flow
suction
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.)
Revoked
Application number
EP08017768A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2052660A2 (de
EP2052660A3 (de
Inventor
Eugen Bruntner
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.)
Electrostar GmbH
Original Assignee
Electrostar GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38860026&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2052660(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Electrostar GmbH filed Critical Electrostar GmbH
Priority to PL08017768T priority Critical patent/PL2052660T3/pl
Publication of EP2052660A2 publication Critical patent/EP2052660A2/de
Publication of EP2052660A3 publication Critical patent/EP2052660A3/de
Application granted granted Critical
Publication of EP2052660B1 publication Critical patent/EP2052660B1/de
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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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 invention relates to a suction device according to the preamble of claim 1.
  • a suction device in whose housing two suction motors are housed, each associated with a filter.
  • Each suction motor has an air outlet opening, which can be closed by a shut-off valve when the respective filter needs to be cleaned. Then the associated suction motor is switched off and closed with the shut-off valve, the air outlet opening of this shut-off suction motor.
  • the two naturally aspirated engines require a correspondingly large-volume housing. The cleaning of the filter can only begin when the switched-off naturally-aspirated engine has reduced its speed so far that a suction effect no longer occurs.
  • the flow time of the suction motor is in the range of seconds.
  • a generic suction device ( DE-A-1 01 01 219 ) is only a naturally aspirated engine housed in the housing, the two filters are connected upstream. They are each assigned a cleaning device with which the respective filter can be cleaned, while still being sucked by the other filter dirty air.
  • the valve devices each have a plunger, on each of which there are two valve elements in the form of valve plates, which are arranged displaceably on the plunger. The valve devices form three-way valves. The sucked dirty air flows through the filter and enters an intermediate chamber, which are connected by two openings with a suction chamber and a respective exhaust air chamber.
  • the one valve element closes the exhaust chamber against the intermediate chamber, so that the air after Flow through the filter via the intermediate chamber first in the suction chamber and from there into the exhaust chamber flows.
  • the other valve element is also brought into the closed position by moving the corresponding plunger, whereby the intermediate chamber is separated from the suction chamber and the downstream exhaust chamber. Since the naturally aspirated engine continues to suck in dirty air, an overpressure is created in the exhaust air chamber of the filter to be cleaned. It is used to exert a shock pulse on the filter to be cleaned by the plunger of the associated valve means is further displaced, whereby the valve disc opens the passage opening between the exhaust chamber and the associated intermediate chamber. Part of the air thus flows through the filter to be cleaned in the reverse direction. Due to this backflow, the suction power decreases to a considerable extent.
  • the invention has the object of providing the generic suction device in such a way that in a compact design of the cleaning process of the filter at full suction when needed can be started immediately without idling times occur.
  • suction device only a single suction motor is provided, so that the housing of the suction device can be made very compact.
  • the suction motor remains switched on both during the suction process and during the cleaning process, so that idle times do not occur when cleaning the respective filter.
  • the associated valve device is actuated, which blocks the flow path of the clean air from the filter to the suction motor.
  • the plunger performs its ram stroke, whereby the one valve element closes the associated further passage opening and the sealing element releases the associated passage opening. This blocking process can take place abruptly, so that the cleaning process can be carried out immediately afterwards.
  • the suction motor remains switched on and operates at full power, so that it can be sucked on with the suction device.
  • the dirty air then flows only through the one filter in which the flow path to the air outlet opening is not shut off. If the cleaning process is completed, the plunger of the valve device is pushed back in a stroke in the starting position, whereby the flow path is released from the cleaned filter to the air outlet opening. In this way, the filters can be alternately cleaned if necessary. As long as the two filters are not yet added, the sucked dirty air flows through both filters.
  • the flow space and the downstream flow channel allow easy and reliable shut off the flow path of the air when the filter needs to be cleaned.
  • the plunger is electromagnetically, in particular by a solenoid, moved.
  • the opening width of the passage opening is greater than the diameter of the plunger. During the cleaning process, this passage opening is not sealed, so that the negative pressure in the flow direction behind the filter to be cleaned immediately coincides and the cleaning can be initiated immediately.
  • the diameter of the plunger is several times smaller than the width of the further passage opening. This ensures that during the suction process, the sucked air can flow quickly into the flow channel and from there in the direction of the air outlet opening after passing through the filter.
  • the valve element is seated at the free end of the plunger, preferably in the flow channel. This ensures that when moving the plunger, the valve element closes the one passage opening and at the same time the sealing element on the plunger releases the other passage opening.
  • the valve element does not have to ensure a 100% seal at the passage opening during the cleaning process of the filter. Possibly via the valve element located in the closed position entering leakage air does not adversely affect, since the free opening cross-section of the opposite passage opening, which is released by the sealing element, is substantially larger than the leakage cross-section.
  • the suction motor is advantageously located centrally in the housing, wherein the filters are arranged in the area next to the suction motor.
  • the suction device has a container 1, on which a hood 2 is detachably mounted.
  • a suction motor 3 is preferably housed centrally.
  • the suction device is provided with an intake 5, to which a suction hose can be connected.
  • the hood 2 is provided with at least one air outlet opening 6 through which the filtered air exits the suction device.
  • the suction motor 3 is seated in a support unit 11.
  • the suction device has two filters 16, 17, which are advantageously identical and each have a folded filter medium.
  • the two filters 16, 17 advantageously extend perpendicular to the plane of the drawing.
  • Each filter 16, 17 is associated with a cleaning device 20, 21, with which the respective filter 16, 17 can be cleaned when it is added by dust / dirt particles.
  • the cleaning means 20, 21 are known per se vibrating means with a Rüttelmagneten 22, 23, with which the filters 16, 17 are placed in vertical vibrations, as indicated in the drawing for the filter 17 by the double arrow 24.
  • the shaking movements in the vertical direction cause the adhering to the filter medium dust / dirt particles 25 are shaken off and fall down into the dirt container 1.
  • Each filter 16, 17 is associated with a valve device 26, 27, with the flow path from the intake manifold 5 to the air outlet opening 6 can be closed during the cleaning phase of the filter 16 and 17, respectively.
  • Both valve devices 26, 27 are advantageously the same design and provided on the support unit 11.
  • the valve devices 26, 27 each have a lifting magnet 28, 29, with which a plunger 30, 31 can be moved axially.
  • a valve disc 32, 33 is provided, with which an opening 34, 35 of the support unit 11 can be closed.
  • the opening 34, 35 connects flow channels 14, 15, each with a flow space 36, 37, in which the Rüttelmagnet 22, 23 of the cleaning device 20, 21 is located.
  • the plunger 30, 31 protrudes through an opening provided in a wall 40, 41 opening 38, 39 which is opposite to the opening 34, 35 at a distance.
  • the wall 40, 41 limits the respective flow space 36, 37 to the outside.
  • the free opening cross section of the openings 38, 39 is substantially smaller than the free opening cross section of the openings 34,35.
  • a sealing element 42, 43 which may be formed for example by a short piece of hose.
  • the two lifting magnets 28, 29 are located outside the flow spaces 36, 37.
  • the lifting magnets 28, 29 may be encapsulated.
  • the plunger 30 of the valve device 26 is extended, so that the valve disc 32, the opening 34 of the support unit 11 releases.
  • the sealing element 42 abuts against the outside of the wall 40 and seals the opening 38 in the wall 40 properly.
  • the plunger 31 of the valve device 27 is extended, so that the valve disc 33, the opening 35 releases and the sealing element 43, the opening 39 in the wall 41 seals.
  • the suction motor 3 the offset with dust / dirt particles 25 air is sucked in via the intake manifold 5 and flows through the filters 16, 17 in the flow chambers 36, 37.
  • the dust / dirt particles 25 are in the Filtering 16, 17 retained so that purified exhaust air flows into the flow spaces 36, 37.
  • the exhaust air enters the flow channels 14, 15.
  • the exhaust air then flows through an air passage opening 9 and from there through the air outlet opening 6 into the open.
  • the flow pattern is shown by a dashed line for the filter 16.
  • the valve disc 33 does not have to seal the opening 35 100%.
  • a cost-effective sealing element can be used for the valve disk 33, without causing disadvantages in the cleaning of the filter 16, 17 with it.
  • the opening 39 whose diameter is slightly larger than the diameter of the plunger 31, is open when the opening 35 is closed, so that leakage air reaching via this opening 35 into the flow space 37 can be compensated quickly.
  • the passage cross-section in the region of the opening 39 is greater than the leakage cross-section in the region of the valve disk 33, so that the leakage air entering the flow space 37 can be reliably compensated.
  • the vacuum generated by the suction motor 3 is reliably degraded through the opening 39, as described in the The way the free flow cross-section of the opening 39 is substantially larger than the leakage cross-section in the region of the valve disc 33rd
  • the suction device can continue to work, since the filter disk 32 of the plunger 30 of the valve device 26 does not close the opening 34.
  • the sucked by the suction motor 3 exhaust air can therefore, as shown in the drawing by the flow arrows, through the filter 16 into the flow chamber 36, through the opening 34 into the flow chamber 14, through the air passage opening 9 and through the air outlet opening 6 to flow outward.
  • the suction motor 3 operates at full power, so that the suction effect is not affected by the cleaning of the filter 17.
  • the solenoid 29 is turned off and the plunger 31 extended by the negative pressure generated by the vacuum motor 3, so that the valve disc 33, the opening 35 releases and at the same time the sealing element 43, the opening 39 seals. This switching process takes place abruptly. Thus, the filter 17 is switched back into the flow path for the dust / dirty air, so that they can flow through the filter 17.
  • the solenoid 28 is turned on and the plunger 30 is moved back.
  • the valve disk 32 then closes the opening 34, while the sealing element 42, the opening 38 releases.
  • the sealing element 16 can be cleaned in the manner described.
  • the filter 17 operates, so that even during the cleaning of the filter 16, the suction power of the suction device is not impaired.
  • the two filters 16, 17 can thus be cleaned alternately.
  • the suction motor 3 operates continuously with a constant high power, so that the suction power of the suction device remains unchanged even when cleaning the filter 16 and 17 respectively.
  • the suction device is characterized by a compact design, since only a suction motor 3 is used, the centrally in the container 1 is arranged.
  • the support unit 11 is detachably inserted into the container 1, so that it can be easily removed if necessary.
  • the suction device can be used for a long time until the container 1 has to be emptied. Since the filters 16, 17 are cleaned alternately, no idle times occur during the suction process, since a filter 16 or 17 is always ready for use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Cleaning In General (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Massaging Devices (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP08017768A 2007-10-26 2008-10-10 Sauggerät Revoked EP2052660B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08017768T PL2052660T3 (pl) 2007-10-26 2008-10-10 Urządzenie ssące

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202007015242U DE202007015242U1 (de) 2007-10-26 2007-10-26 Sauggerät

Publications (3)

Publication Number Publication Date
EP2052660A2 EP2052660A2 (de) 2009-04-29
EP2052660A3 EP2052660A3 (de) 2009-07-01
EP2052660B1 true EP2052660B1 (de) 2012-02-29

Family

ID=38860026

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08017768A Revoked EP2052660B1 (de) 2007-10-26 2008-10-10 Sauggerät

Country Status (6)

Country Link
US (1) US8015660B2 (pl)
EP (1) EP2052660B1 (pl)
AT (1) ATE547037T1 (pl)
DE (1) DE202007015242U1 (pl)
DK (1) DK2052660T3 (pl)
PL (1) PL2052660T3 (pl)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10729299B2 (en) 2016-01-19 2020-08-04 Festool Gmbh Suction device
US11627863B2 (en) 2017-01-13 2023-04-18 Black & Decker Inc. Dust collection box
IT202100027068A1 (it) 2021-10-21 2023-04-21 Elsea S R L Dispositivo per la pulizia dei filtri di aspirazione di un’aspirapolvere

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017568B4 (de) 2005-04-11 2024-04-25 Alfred Kärcher SE & Co. KG Saugreinigungsgerät
EP2046183B1 (de) 2006-07-29 2010-09-01 Alfred Kärcher GmbH & Co. KG Verfahren zum abreinigen der filter eines staubsaugers sowie staubsauger zur durchführung des verfahrens
DE102008047047B4 (de) * 2008-09-13 2012-09-20 Alto Deutschland Gmbh Filterabreinigung in einem Schmutzsauger mit Klappenelement
WO2010121656A1 (de) * 2009-04-22 2010-10-28 Alfred Kärcher Gmbh & Co. Kg Verfahren zum abreinigen zweier filter eines sauggerätes für reinigungszwecke sowie sauggerät zur durchführung des verfahrens
DE102009020769A1 (de) 2009-04-30 2010-11-04 Alfred Kärcher Gmbh & Co. Kg Saugreinigungsgerät
WO2011003441A1 (de) 2009-07-07 2011-01-13 Alfred Kärcher Gmbh & Co. Kg Sauggerät für reinigungszwecke
DE102010045979A1 (de) * 2010-09-18 2012-03-22 Nilfisk-Advance A/S Filterabreinigung für Schmutzsauger mit externem Gebläse
US20130219652A1 (en) * 2012-02-28 2013-08-29 Steve Martel Valve system and method
EP2662011B8 (en) * 2012-05-07 2015-10-07 IP Cleaning S.p.A. Suction apparatus
CN104000538B (zh) * 2013-02-27 2016-08-17 天佑电器（苏州）有限公司 清洁工具
US9107550B2 (en) 2013-09-27 2015-08-18 Black & Decker Inc. Compact vacuum and sander
US10118236B2 (en) 2014-09-26 2018-11-06 Kennametal Inc. Rotary cutting tool
US20220369881A1 (en) * 2016-12-12 2022-11-24 Skybest Electric Appliance (Suzhou) Co., Ltd. Dust Collector and Self-Cleaning Method for Filter Thereof
EP3420874A1 (de) 2017-06-29 2019-01-02 HILTI Aktiengesellschaft Filterabreinigung
EP3753464A1 (de) * 2019-06-18 2020-12-23 Hilti Aktiengesellschaft Anordnung einer abreinigungseinheit in einer staubsaugvorrichtung und staubsaugvorrichtung mit einer solchen anordnung
CN112228259B (zh) * 2020-10-21 2021-09-07 马鞍山市常立发机械制造有限公司 一种农业机械用柴油机导风装置
WO2022109107A1 (en) 2020-11-19 2022-05-27 Milwaukee Electric Tool Corporation Portable dust extractor
US20240108184A1 (en) * 2022-10-04 2024-04-04 Makita Corporation Dust collector
DE102023123077A1 (de) 2023-08-28 2025-03-06 Electrostar Gmbh Schalteinrichtung für eine Staubsaugvorrichtung und Staubsaugvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10101219C9 (de) * 2001-01-12 2018-05-17 Nilfisk-Advance A/S Schmutzsauger
DE202004012911U1 (de) 2004-08-18 2004-10-21 Electrostar Schöttle GmbH & Co. KG Sauggerät mit mehreren Saugmotoren
DE602006012794D1 (de) * 2006-01-27 2010-04-22 Black & Decker Inc Filterreinigungsmechanismus von Staubsauger
DE102006000310A1 (de) * 2006-06-26 2008-01-10 Hilti Ag Staubsaugvorrichtung
ITMI20071121A1 (it) * 2007-06-01 2008-12-02 Guido Valentini "aspiratore per polveri con pulizia automatica dei filtri"

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10729299B2 (en) 2016-01-19 2020-08-04 Festool Gmbh Suction device
US11627863B2 (en) 2017-01-13 2023-04-18 Black & Decker Inc. Dust collection box
IT202100027068A1 (it) 2021-10-21 2023-04-21 Elsea S R L Dispositivo per la pulizia dei filtri di aspirazione di un’aspirapolvere
EP4186404A1 (en) 2021-10-21 2023-05-31 Elsea S.r.l. Device for cleaning the suction filters of a vacuum cleaner

Also Published As

Publication number Publication date
US20090106933A1 (en) 2009-04-30
DK2052660T3 (da) 2012-06-25
EP2052660A2 (de) 2009-04-29
DE202007015242U1 (de) 2007-12-27
PL2052660T3 (pl) 2012-07-31
US8015660B2 (en) 2011-09-13
ATE547037T1 (de) 2012-03-15
EP2052660A3 (de) 2009-07-01

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