EP1626645A1 - Systeme pour evacuer des particules d'un espace de separation - Google Patents

Systeme pour evacuer des particules d'un espace de separation

Info

Publication number
EP1626645A1
EP1626645A1 EP04733341A EP04733341A EP1626645A1 EP 1626645 A1 EP1626645 A1 EP 1626645A1 EP 04733341 A EP04733341 A EP 04733341A EP 04733341 A EP04733341 A EP 04733341A EP 1626645 A1 EP1626645 A1 EP 1626645A1
Authority
EP
European Patent Office
Prior art keywords
ceramic filter
particles
air
motor
collecting
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.)
Withdrawn
Application number
EP04733341A
Other languages
German (de)
English (en)
Inventor
Michael Krammer
Albert Kleinhenz
Wolfgang Kemmerzell
Thomas Strehler
Georg Schwalme
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1626645A1 publication Critical patent/EP1626645A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • 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
    • A47L9/106—Dust removal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/90—Cleaning of purification apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/55—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for cleaning appliances, e.g. suction cleaners

Definitions

  • the invention relates to a device for separating particles from air, in particular for filtering out dust in a vacuum cleaner according to the preamble of patent claim 1.
  • a vacuum cleaner with a housing and a blower which has a dust separator and a dust collection unit. Air is directed from the vacuum nozzle into an inlet chamber of the dust separator via a suction hose. The air directed into the inlet chamber can escape from the inlet chamber via an outlet chamber which has a multiplicity of small holes.
  • the outlet chamber has a vertically arranged cylindrical filter which is arranged concentrically within the outlet chamber.
  • the cylindrical filter can be made of ceramic material.
  • a disadvantage of this vacuum cleaner known from the prior art is that the collecting unit can only be removed from the vacuum cleaner together with the ceramic filter.
  • the ceramic filter In order to be able to remove the dust accumulated in the collection unit from the vacuum cleaner, not only the collection unit but also the ceramic filter must be removed from the vacuum cleaner.
  • removing the ceramic filter from the vacuum cleaner carries the risk that the ceramic filter can be easily damaged due to its brittle material properties.
  • the object of the invention is to further develop a generic device such that the dust collector can be arranged, removed and inserted independently of the ceramic filter.
  • this object is achieved in that the device has a conveying means for transporting particles, preferably detached from the surface of the ceramic filter, into a dust collector.
  • the use of a conveying means opens up the possibility of arranging the dust collector in a different position in the device than exclusively below the ceramic filter. In the known solution, it is always necessary to arrange the dust collector directly below the ceramic filter so that dust particles can get into the dust collector solely due to gravity.
  • the vacuum cleaner can be arranged, for example, on one side of the ceramic filter or even above the ceramic filter.
  • the dust collector can be designed such that it can be easily removed from the device.
  • the dust collector can be removed and reinserted without having to remove the ceramic filter from the device.
  • the conveying means has an air-flow channel for transporting the detached particles.
  • any funding can be used to transport the particles detached from the ceramic filter into the dust collector.
  • the conveyor as an air-flow channel.
  • a motor / blower unit that is already provided in a vacuum cleaner can be used to generate an air flow that is guided through the duct.
  • the funding includes only the existing motor / blower unit and the suction channel according to the invention.
  • the suction channel can be formed by parts of the side walls of the housing.
  • the channel can be formed, for example, by a separate hose which fluidically connects a separation space which carries the ceramic filter and a space which has the dust collector.
  • the duct can be connected to the engine Z blower unit in terms of flow technology in order to flow through it, which is branched off from a suction air flow generated by the motor / blower unit.
  • the duct can be supplied with air, for example, by leading a supply line from the positive pressure side of the motor / blower unit into the separating space which has the ceramic filter.
  • the air flow can also be introduced directly to the end of the duct that is connected to the separation space that has the ceramic filter.
  • the duct can also be connected in terms of flow technology to a fan different from the motor-Z blower unit. It is not absolutely necessary that a suction air stream flows through the duct. In the same way, compressed air can also flow through the channel. The air is not sucked in, but blown through the duct with overpressure.
  • an air stream can be generated in the suction duct independently of the motor-Z blower unit. This has the advantage that the conveyor for detached particles is functional even when the motor-Z blower unit is not in operation, i. H. the conveyor is also ready for operation when, for example, the vacuum cleaner is not in the suction insert.
  • the fan can be driven by a drive shaft of the motor-Z blower unit.
  • the fan is operated by means of the motor force of the motor-Z blower unit.
  • This has the advantage that no separate motor has to be provided in order to be able to operate the separate fan.
  • a coupling can be provided between the motor and blower unit, which in conveying mode, when the fan is driven by the motor, uncouples the blower from the drive shaft of the motor and the fan is out of operation.
  • the clutch can in particular be designed to be electrically actuated.
  • the fan can also be electrically driven independently of the motor-Z blower unit.
  • an additional motor is provided, to whose drive shaft the fan can be connected.
  • the motor / fan unit does not have to be in operation to operate the fan. It is only necessary that the device or the vacuum cleaner is connected to the network.
  • the dust collector is detachably connected to the device. The detached particles or dust can thus be removed from the device and disposed of in a simple manner.
  • the dust collector is preferably designed as a separate collector container.
  • the collecting container has fixed side walls and can additionally have a handle. This makes the dust collector easily removable from the device, similar to a drawer. The collecting container can be pulled out of the device in a simple manner and inserted again.
  • the dust collector can also be designed as a filter bag. It is particularly advantageous if filter bags already present in the device for separating particles or dust are used as dust collectors for the particles detached from the ceramic filter. This eliminates the need for a different dust collector from the existing filter bag.
  • the device can have a collecting device for particles detached from the ceramic filter upstream of the conveying means. In most cases, particles detached from the ceramic filter will initially fall down due to gravity. If the dust collector is not arranged directly below the ceramic filter, but laterally or even above it, a collecting device which is associated with the ceramic filter can collect and collect the detached particles before they are transported into the dust collector by the conveying means.
  • the collecting device can preferably have a collecting surface arranged in the direction of gravity below the upstream surface of the ceramic filter. In most cases, the particles detached from the ceramic filter and gravity will fall down. To collect these particles, a collecting surface is therefore provided below the upstream surface of the ceramic filter.
  • the collecting surface can be formed in a simple manner by a sheet metal attached to the lower edge of the ceramic filter or by a wall of the housing of the device.
  • the collecting surface can in particular be channel-shaped or bowl-shaped. This design enables particularly good collection and preconcentration of the particles detached from the ceramic filter in order to be able to introduce it into the conveying means.
  • the collecting surface can preferably form a bottom surface of a container, the at least one side or top wall of which has the ceramic filter.
  • the collecting surface forms a buffering collecting zone in which particles can first be accumulated in large quantities before they are transported by the conveying means into the actual dust collector. This has the advantage that the funding only has to be operated at longer intervals.
  • the ceramic filter can be designed as a flat filter. This has the advantage that the ceramic filter can be manufactured in a simple manner. Furthermore, a flat filter can be easily inserted into and removed from the device. For this purpose, opposite guide rails can be provided in the device, into which the flat filter can be inserted.
  • the ceramic filter can be designed as a hollow chamber, at least part of its wall forming the collecting device.
  • Such a design of the ceramic filter not only has the advantage that the effective area of the ceramic filter is enlarged, but a separate collecting device is also unnecessary.
  • Figure 1 is a schematic representation of a device according to the invention.
  • FIG. 1 is a schematic representation of a variant of the device according to the invention.
  • the schematic illustration in FIG. 1 shows a housing 1 of a vacuum cleaner.
  • An intermediate wall 2 extends within the housing and separates the housing 1 into a blower chamber 3 and a dust chamber 4.
  • the intermediate wall 2 has an opening section 5 through which suction air is drawn in from the dust chamber 4 into the blower chamber 3.
  • the opening section 5 is covered by a ceramic filter 6.
  • the ceramic filter 6 has an open-pore structure and can be produced, for example, as a foam ceramic in known processes.
  • the ceramic filter 6 can be detachably fastened in the housing 1.
  • a removal opening 7 can be formed on the housing 1, through which the detachable ceramic filter 6 can be removed from the housing 1.
  • the ceramic filter 6 is designed as a flat filter. Dust-laden air can enter the dust chamber 4 via an inlet opening 8.
  • the inlet opening 8 is formed by a coupling piece arranged in a dust chamber cover, to which a suction hose with a telescopic tube and nozzle can be connected (not shown).
  • the bottom surface and parts of the side wall of the dust chamber 4, which are located below the ceramic filter 6, form a collecting device 31 for particles 10.
  • a motor-Z blower unit 11 is arranged within the blower chamber 3.
  • the motor-Z blower unit 11 has an electric drive motor 12, the drive shaft 13 of which carries an impeller 14.
  • the fan wheel 14 fluidically separates the fan space 3 into a vacuum space 15 and an overpressure space 16.
  • the vacuum space 15 is fluidly connected to a downstream surface 17 of the ceramic filter 6. Due to the negative pressure generated in the negative pressure space 15 by the motor-Z blower unit 11, air laden with particles or dust is sucked into the dust chamber 4 via the inlet opening 8. The suction air flow is sucked through the open-pore ceramic filter 6 into the vacuum chamber 15. Due to the small pore size of a few micrometers of the ceramic filter 6, the particles 10 are retained in the dust chamber 4 without being able to pass through the ceramic filter 6.
  • the particles 10 accumulate on an upstream surface 18 of the ceramic filter 6.
  • the suction air stream freed from particles 10 passes via the impeller 14 from the negative pressure space 15 into the positive pressure space 16.
  • the air cleaned of particles is blown out of the device via an outlet opening 19.
  • air cleaned of particles is thus in a flow channel 20 from the downstream surface 17 of the Ceramic filter 6 conveyed to the outlet opening 19 for blowing out.
  • the particles 10 deposited on the upstream surface 18 can reach a collecting device 31 from the upstream surface 18 by means of gravity or a separate cleaning device.
  • the collecting device 31 is arranged in the direction of gravity below the upstream surface 18 of the ceramic filter 6.
  • the collecting tray 31 extends in a groove-like manner along the lower edge of the ceramic filter 6.
  • the collecting tray 31 forms a bottom surface and partially the side walls of a container 32 which is detachably attached to the vacuum cleaner.
  • a side wall of the container 32 has the ceramic filter 6.
  • the vacuum cleaner has a separate dust collector 9, which is preferably detachably mounted in the vacuum cleaner.
  • the dust collector 9 has a first opening 33 which is connected to the conveying means 30.
  • the conveyor 30 is designed as a hollow channel or as a hollow line. In an inexpensive variant, this can be a plastic hose.
  • the dust collector 9 has a second opening 34 which connects the dust collector 9 to the vacuum chamber 15 via a bypass channel 35.
  • the bypass channel 35 has a valve arrangement 36 which is open in the conveying mode. In normal suction operation for collecting the particles 10 on the ceramic filter 6, the valve arrangement 36 is closed.
  • the dust collector is connected to the collecting device 31 via the conveying means 30 designed as a hollow channel.
  • the valve arrangement 36 When the valve arrangement 36 is opened, a suction air flow is generated due to the negative pressure in the negative pressure space 15, which conveys the particles 10 located in the collecting device 31 into the dust collector 9.
  • the suction air flow can be generated by a separate fan 37 and the negative pressure side of the fan can be connected to the second opening 34 of the dust collector 9.
  • the fan 37 is driven by a separate motor 38.
  • the ceramic filter 6 is designed as a hollow chamber filter. If the ceramic filter 6 is designed like a hollow chamber, the inner wall of the ceramic can form the bounding walls of the dust chamber 4. Parts of the side wall of the ceramic filter 6 form the collecting device 31 for particles 10.
  • the conveying means 30 cannot be operated by means of a suction air flow, but rather by means of a mechanical screw conveyor 39 Screw conveyor be trained as a spring spiral, which rotates in a flexible plastic slaughter.
  • the rotary drive in FIG. 2 takes place via the separate motor 38 which, in a modification of the example shown in FIG. 1, is not connected to a fan 37 but is coupled to the screw conveyor 39 via a drive shaft 40.
  • the Ford screw 39 has an ejection opening 41 in order to be able to introduce the particles 10 into the dust collector 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Ceramic Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

L'invention concerne un système servant à séparer les particules en suspension dans l'air, en particulier à filtrer la poussière dans un aspirateur, ce système comprenant un boîtier (1) contenant un groupe moteur/ventilateur (11) pour aspirer l'air chargé en particules par une ouverture d'entrée (8), acheminer cet air à travers un filtre céramique (6), les particules se déposant sur la surface côté flux entrant (18) de ce filtre céramique, et évacuer côté flux sortant l'air épuré par une ouverture de sortie (19). Selon l'invention, pour que le collecteur de poussières (9) puisse être disposé, retiré et remis en place indépendamment du filtre céramique (6), le système selon l'invention comprend un moyen d'acheminement (30) servant à transporter les particules détachées de la surface du filtre céramique (6) dans le collecteur de poussières (9). De cette manière, l'espace de collecte des poussières peut être séparé de l'espace dans lequel se trouve le filtre céramique (6). L'espace de séparation et l'espace de collecte des poussières étant séparés, le collecteur de poussières (9) peut être retiré et remis en place sans qu'il soit nécessaire d'enlever le filtre céramique (6) du système.
EP04733341A 2003-05-15 2004-05-17 Systeme pour evacuer des particules d'un espace de separation Withdrawn EP1626645A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10321922A DE10321922A1 (de) 2003-05-15 2003-05-15 Vorrichtung zum Entfernen von Teilchen aus einem Abscheideraum
PCT/EP2004/005307 WO2004100748A1 (fr) 2003-05-15 2004-05-17 Systeme pour evacuer des particules d'un espace de separation

Publications (1)

Publication Number Publication Date
EP1626645A1 true EP1626645A1 (fr) 2006-02-22

Family

ID=33394631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04733341A Withdrawn EP1626645A1 (fr) 2003-05-15 2004-05-17 Systeme pour evacuer des particules d'un espace de separation

Country Status (4)

Country Link
EP (1) EP1626645A1 (fr)
CN (1) CN1791347A (fr)
DE (1) DE10321922A1 (fr)
WO (1) WO2004100748A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602007014055D1 (de) * 2006-08-11 2011-06-01 Lg Electronics Inc Klimaanlage
DK2072920T3 (da) * 2007-12-21 2011-11-14 Akos Advanced Technology Ltd Luftrensningssystem
US9737841B2 (en) 2007-12-21 2017-08-22 Sui Chun Law Air purification system
DE202014009936U1 (de) * 2014-12-17 2016-03-18 Stiebel Eltron Gmbh & Co. Kg Lüftungsgerät und Filter
DE102015103825A1 (de) 2015-03-16 2016-09-22 Vorwerk & Co. Interholding Gmbh Entleeren eines Staubraums eines Staubsaugers
DE102015108558A1 (de) * 2015-05-29 2016-12-01 Vorwerk & Co. Interholding Gmbh Luftfilter
DE102016118807A1 (de) * 2015-12-21 2017-06-22 Vorwerk & Co. Interholding Gmbh Rückspülbarer Luftfilter und Staubsauger mit einem rückspülbaren Luftfilter
DE102016100820A1 (de) * 2016-01-19 2017-07-20 Vorwerk & Co. Interholding Gmbh Saugreinigungsgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825773A1 (de) * 1988-07-29 1990-02-01 Duepro Ag Saugreinigungsgeraet
JPH08322768A (ja) * 1995-06-02 1996-12-10 Sharp Corp 電気掃除機
FR2778546B1 (fr) * 1998-05-15 2000-06-30 Seb Sa Aspirateur a separation tangentielle des dechets
US6269518B1 (en) * 1999-12-08 2001-08-07 Shell Electric Mfg. (Holdings) Co. Ltd. Bagless vacuum cleaner
SE521544C2 (sv) * 2002-03-08 2003-11-11 Electrolux Ab Anordning och förfarande för att samtidigt avskilja och försluta en tubformad bana i en dammsugare

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004100748A1 *

Also Published As

Publication number Publication date
CN1791347A (zh) 2006-06-21
WO2004100748A1 (fr) 2004-11-25
DE10321922A1 (de) 2004-12-02

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