EP2932878A1 - Appareil de nettoyage produisant des flux d'aspiration - Google Patents

Appareil de nettoyage produisant des flux d'aspiration Download PDF

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Publication number
EP2932878A1
EP2932878A1 EP15163448.2A EP15163448A EP2932878A1 EP 2932878 A1 EP2932878 A1 EP 2932878A1 EP 15163448 A EP15163448 A EP 15163448A EP 2932878 A1 EP2932878 A1 EP 2932878A1
Authority
EP
European Patent Office
Prior art keywords
flow
suction
air flow
cleaning device
pressure
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.)
Granted
Application number
EP15163448.2A
Other languages
German (de)
English (en)
Other versions
EP2932878B1 (fr
Inventor
Nazli Eidmohammadi
Christian Stehl
Alexander Siegfanz
Sabrina HOFFMANN
Miron SERNECKI
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.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding 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 Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Publication of EP2932878A1 publication Critical patent/EP2932878A1/fr
Application granted granted Critical
Publication of EP2932878B1 publication Critical patent/EP2932878B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/16—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with suction devices other than rotary fans
    • A47L5/18—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with suction devices other than rotary fans with ejectors, e.g. connected to motor vehicle exhaust
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0009—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0023—Recovery tanks
    • 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
    • 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
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1409—Rigid filtering receptacles

Definitions

  • the invention relates to a cleaning device with an air flow generator for generating an air flow, which generate a first suction flow in a direction of flow in the air flow upstream of the air flow generator, opening into a first header first suction line and a pressure flow in a arranged in the flow direction of the air flow behind the air flow generator pressure line can.
  • Such cleaning devices are known as dry or wet vacuum cleaners, as handheld devices or self-propelled robots.
  • a mechanical air flow generator which is usually formed by an electric motor driven impeller, an air flow is generated. Upstream of the air flow generator forms a suction flow, through a suction line, solid or liquid particles can be absorbed by a surface and collected in a first collection. Downstream of the air flow generator, a pressure flow is formed, which usually leaves the device from an outlet device.
  • the invention has for its object to further develop the cleaning device described above advantageous use and in particular to expand the range of use of the device with simple means.
  • a second suction flow can be generated in addition to the first suction flow. While in the air flow generator in operation, the first suction flow flows through a first suction line, which opens into a first reservoir, flows through the second suction a second suction line, which opens into a second reservoir.
  • hydrodynamic means provided with which the air flow of the air flow generator can generate the second suction flow.
  • This preferably takes place in that the kinetic energy of the second suction flow can be obtained from the kinetic energy of the pressure flow.
  • the kinetic energy of the second suction flow can be removed from the kinetic energy of the pressure flow.
  • This is furthermore preferably carried out by means of a hydromechanical device, in particular a nozzle arrangement and particularly preferably a venturi nozzle arrangement.
  • the air flow can be generated in a known manner by a mechanical air flow generator, for example by an impeller driven by an electric motor.
  • the pressure flow generated by the air flow generator enters from a pressure outlet nozzle into a suction channel of a second cleaning unit, so that the pressure flow exits in the extension direction of the suction channel.
  • the pulse of the pressure flow emerging from the pressure-flow outlet opening is transmitted to the air within the suction channel surrounding the pressure-flow outlet opening. Due to this impulse transmission, the second suction flow is formed.
  • a first suction flow is generated with only one mechanical air flow generator, with which, for example, dry particles are taken up by a surface and conveyed into a collecting container.
  • the air flow generated by the mechanical air flow generator kinetic energy is removed, so as to generate a second suction flow, for example, the wet particles, in particular droplets on a Surface removed to transport them in a second suction flow associated collecting container.
  • the cleaning device according to the invention is particularly preferably designed as a self-propelled vacuum robot. It may be a floor mop, which has a pure water tank in which the water stored therein is used for humidifying a surface to be cleaned. The moisture can then be sucked out of the first or the second suction flow together with dirt particles dissolved in a moisture film. With the other suction flow is a dry cleaning.
  • a conventional Venturi nozzle arrangement in which the hydromechanical principle is used, that the acceleration of a gas flow reduces the static pressure and that a suction flow can thereby be generated.
  • the air flow generated by the air flow generator flows through a nozzle section into which the cross section of the pressure flow channel is reduced.
  • a nozzle section with minimal cross-section opens a suction channel transversely to the air flow.
  • the nozzle cross-section opens, so that the flow velocity of the air flow, which is maximum in the region of the mouth of the suction channel, can decrease.
  • the invention can also be described in that a cleaning device with an air flow generator for generating an air flow is concerned, a first suction flow through a arranged in the flow direction of the air flow upstream of the air flow generator, opening into a first header first suction line and a pressure flow in a flow direction having the air flow behind the air flow generator arranged pressure line.
  • means are provided, with which the air flow generates a second suction flow separated from the first suction flow through a second suction line opening into a second collecting tank.
  • the kinetic energy of the second suction flow is obtained from the kinetic energy of the pressure flow.
  • the cleaning device has a transverse to the flow direction of the pressure flow in a cross-section reduced area of the nozzle assembly opening of a second suction flow-conducting suction channel.
  • FIG. 1 shows essentially elements of a cleaning unit, for example a self-propelled cleaning device in the form of a vacuum robot or a manually movable device.
  • a first suction line 1 has at its free end a nozzle arrangement, not shown, for collecting moisture from a surface.
  • the first suction line 1 opens into a first collecting container 2, in which the moisture can be separated from the air stream; For example, the droplets collect at the bottom of the first reservoir 2.
  • a mechanical air flow generator 3 in the form of a rotary driven by an electric motor impeller generates upstream of the air flow generator 3, a suction flow S 1 , with said liquid particles are conveyed through the first suction line 1.
  • a pressure line 4 In the flow direction of the air flow behind the air flow generator 3 is a pressure line 4, through which the air flow generated by the air flow generator 3 is conveyed as a pressure flow D in a nozzle channel 10.
  • the nozzle channel 10 terminates in a pressure flow outlet opening 9, through which the pressure flow D enters a mixing zone 14 of a suction channel 12.
  • the nozzle channel 10 extends parallel to the extension direction of the suction channel 12 and in the embodiment in its cross-sectional center.
  • the emerging from the pressure flow outlet opening 9 air transfers its pulse in the mixing zone 14 partially to the local air, so that in the suction channel 12 a parallel to the emerging from the pressure flow outlet opening 9 compressed air flow directed second suction flow.
  • the suction channel 12 is connected to a second collecting container 6, in which a second suction line 5 opens.
  • the free end of the second suction line 5 is provided with a nozzle arrangement for absorbing solid particles from a surface to be cleaned.
  • the second suction line 5 is flowed through by the second suction stream S 2 .
  • Dust filters, dust bags or the like may be arranged inside the second collecting container 6 in order to filter out the particles in the second suction stream S 2 from the air stream.
  • a dust filter 11 is shown at the inlet opening of the suction channel 12.
  • the air flow generated by the air flow generator 3 mixes in the mixing zone 14 with the second suction flow S 2 .
  • the entire exhaust air flows out through an outlet opening 8 from the cleaning device.
  • the reference numeral 13 denotes a fresh water tank; stored therein fresh water can be used for a wiper device and sucked on the suction line 1.
  • FIG. 2 Also shown only schematically device also shows the technical elements relevant to the invention of a cleaning device, such as a self-propelled robot or manually movable device.
  • a second suction stream S 2 is generated by means of a nozzle assembly 7 from the pressure flow D generated by an air flow generator 3.
  • the pressure flow D is passed through a parallel to a suction channel 12, in the middle of its cross-section nozzle channel 10 into a mixing zone 14 of the suction channel 12, so that upstream of the mixing zone 14, a second suction flow S 2 is formed.
  • the first suction line 1 through which the first suction flow S 1 directly generated by the air flow generator 3 flows, but connected to a collecting container 2, are deposited in the dry particles.
  • the second suction line 5, through which the second suction stream S 2 flows, is connected in this embodiment with a collecting container 6, in which liquid can collect.
  • a fresh water tank 13 is provided so that the device can operate as a wiper device.
  • FIG. 3 schematically shows the structure of a classic Venturi nozzle, which in the embodiments according to the FIGS. 1 and 2 can be used instead of the nozzle assembly shown there.
  • a pressure line 4 which is located downstream of the mechanical air flow generator 3, a pressure flow D.
  • a first nozzle portion 15 of the nozzle assembly 7 decreases due to a conical wall of the nozzle portion 15, the cross-sectional area of the pressure line 4, so that the speed of the pressure flow D. elevated. With this increased speed, the pressure flow D passes through a second nozzle section 15 'with a constant cross-sectional area.
  • this second nozzle portion 15 ' is a transverse to the flow direction of the pressure flow D extending orifice 12' of a suction channel 12, in which a second suction flow S2 is formed.
  • the second nozzle section 15 ' is adjoined by a third nozzle section 15 ", which likewise has cone-shaped nozzle channel walls, so that the cross section of the third nozzle section 15" increases continuously in the flow direction, resulting in a steady decrease in the flow velocity.
  • the third nozzle section 15 forms a mixing zone 14, to which an outlet opening 8 adjoins.
EP15163448.2A 2014-04-16 2015-04-14 Appareil de nettoyage produisant des flux d'aspiration Active EP2932878B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014105459.8A DE102014105459A1 (de) 2014-04-16 2014-04-16 Zwei Saugströme erzeugendes Reinigungsgerät

Publications (2)

Publication Number Publication Date
EP2932878A1 true EP2932878A1 (fr) 2015-10-21
EP2932878B1 EP2932878B1 (fr) 2016-11-30

Family

ID=52997226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15163448.2A Active EP2932878B1 (fr) 2014-04-16 2015-04-14 Appareil de nettoyage produisant des flux d'aspiration

Country Status (6)

Country Link
US (1) US9863441B2 (fr)
EP (1) EP2932878B1 (fr)
JP (1) JP6618264B2 (fr)
CN (1) CN104997469B (fr)
DE (1) DE102014105459A1 (fr)
ES (1) ES2613524T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113243839A (zh) * 2021-04-30 2021-08-13 北京顺造科技有限公司 分离组件、污水储存装置、吸取装置和表面清洁设备
CN113925388A (zh) * 2021-09-30 2022-01-14 追觅创新科技(苏州)有限公司 一种箱体及清洁设备

Families Citing this family (4)

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US9908155B2 (en) * 2015-08-12 2018-03-06 Jonathan William Smith Vacuum powered surface cleaning apparatus
DE102017208968B4 (de) 2017-05-29 2020-04-16 BSH Hausgeräte GmbH Staubsauger mit abluftbetriebener Strahlpumpe
US11202540B2 (en) * 2019-05-29 2021-12-21 Norco Industries, Inc. Wet/dry vacuum device
WO2023051254A1 (fr) * 2021-09-30 2023-04-06 追觅创新科技(苏州)有限公司 Boîte et dispositif de nettoyage la comprenant

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EP1806086A2 (fr) * 2006-01-06 2007-07-11 Samsung Electronics Co., Ltd. Système de nettoyage avec robot nettoyeur et station d'acceuil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113243839A (zh) * 2021-04-30 2021-08-13 北京顺造科技有限公司 分离组件、污水储存装置、吸取装置和表面清洁设备
CN113925388A (zh) * 2021-09-30 2022-01-14 追觅创新科技(苏州)有限公司 一种箱体及清洁设备

Also Published As

Publication number Publication date
EP2932878B1 (fr) 2016-11-30
JP6618264B2 (ja) 2019-12-11
ES2613524T3 (es) 2017-05-24
US20150300376A1 (en) 2015-10-22
US9863441B2 (en) 2018-01-09
JP2015202402A (ja) 2015-11-16
CN104997469A (zh) 2015-10-28
DE102014105459A1 (de) 2015-10-22
CN104997469B (zh) 2019-07-30

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