WO2015150039A1 - Dispositif d'aspiration de poussières - Google Patents

Dispositif d'aspiration de poussières Download PDF

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Publication number
WO2015150039A1
WO2015150039A1 PCT/EP2015/055137 EP2015055137W WO2015150039A1 WO 2015150039 A1 WO2015150039 A1 WO 2015150039A1 EP 2015055137 W EP2015055137 W EP 2015055137W WO 2015150039 A1 WO2015150039 A1 WO 2015150039A1
Authority
WO
WIPO (PCT)
Prior art keywords
negative pressure
kpa
filter bag
aperture
vacuum cleaner
Prior art date
Application number
PCT/EP2015/055137
Other languages
German (de)
English (en)
Inventor
Ralf Sauer
Jan Schultink
Original Assignee
Eurofilters Holding N.V.
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 Eurofilters Holding N.V. filed Critical Eurofilters Holding N.V.
Priority to US15/300,198 priority Critical patent/US20170172361A1/en
Priority to CN201580030176.4A priority patent/CN106455881B/zh
Publication of WO2015150039A1 publication Critical patent/WO2015150039A1/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
    • 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
    • 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
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • 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
    • 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
    • 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
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures
    • 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
    • A47L9/22—Mountings for motor fan assemblies
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/248—Parts, details or accessories of hoses or pipes
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers

Definitions

  • the invention relates to a device for vacuuming comprising a vacuum cleaner with a suction hose connected to the housing of the vacuum cleaner, and comprising a filter bag, in particular a disposable filter bag made of nonwoven fabric.
  • Regulation 666/2013 Commission Regulation (EU) No 666/2013 of 8 July 2013 implementing Directive 2009/125 / EC of the European Parliament and of the Council with regard to ecodesign requirements for vacuum cleaners.
  • EU Commission Regulation
  • Regulation 665/2013 Commission Delegated Regulation (EU) No 665/2013 of 3 May 2013 supplementing Directive 2010/30 / EU of the European Parliament and of the Council with regard to energy labeling of vacuum cleaners.
  • EU Commission Delegated Regulation
  • Nominal power consumption The rated power consumption in W denotes the electrical input power specified by the manufacturer, with devices having other functions in addition to the vacuum cleaner function, only the electrical power consumption when used as a vacuum cleaner is relevant (VO 666/2013, Annex II, para. 2, letter k).
  • EN 60312 EN 60312 designates - unless otherwise stated - the standard DIN EN 60312-1 (VDE 0705-312-1) in the January 2014 edition: Domestic vacuum cleaners - Part 1: Dry vacuum cleaners - Test method for determining the performance characteristics (IEC 60312-1: 2010, modified + A1: 201 1, modified); German version EN 60312-1: 2013.
  • the air data of a vacuum cleaner are determined in accordance with EN 60312 section 5.8.
  • the measuring device B shall be used in accordance with section 7.3.7.3. det. If motor-blower units are measured solo, ie without a vacuum cleaner housing, the measuring device B is also used. For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • Power consumption of a vacuum cleaner The power consumption P- ⁇ of a vacuum cleaner at a given aperture is determined in accordance with EN 60312 section 5.8.
  • the measuring device B is used in accordance with section 7.3.7.3. For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • Power consumption of a motor-blower unit The power consumption Pi of a motor-blower unit at a given orifice is also determined in accordance with EN 60312 section 5.8.
  • the measuring device B is used in accordance with section 7.3.7.3. For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • Average electrical power consumption of a vacuum cleaner The average power consumption of a vacuum cleaner is determined using the experimental setup for determining the air data in accordance with EN 60312, Chapter 5.8.
  • the measuring chamber version B is used. For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • the average recording power is defined as
  • Average electrical power consumption of the motor-blower unit The average electrical power consumption of a motor-blower unit is carried out with the test set-up for determining the air data in accordance with EN 60312 chapter 5.8. For this purpose, the motor-blower unit is connected directly to the measuring chamber (version B). For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • the average recording power is defined as
  • Average power consumption when determining the functional properties of a filled dust container The average power consumption for determining the functional properties of a filled dust container is determined on the basis of EN 60312. Deviating from this standard, the measurement is carried out with the measuring chamber B at aperture 8.
  • the average power consumption in the determination of the functional properties with a filled filter bag is defined as the mean value of the power consumption when the filter bag is empty and the power consumption when the filter bag is filled.
  • Air flow The air flow is determined according to EN 60312 with the measuring chamber according to version B.
  • the air flow can be determined at different apertures.
  • EN 60312 measurements are made with a 30 mm diameter orifice. If this is measured differently for another aperture, this is stated.
  • this air flow is often referred to as volume flow or suction air flow.
  • Airflow drop The airflow drop is determined according to EN 60312 chapter 5.9 with the measuring chamber according to design B. Notwithstanding this standard, the measuring chamber is equipped with a 40 mm perforated plate (according to standard 30 mm). The vacuum values h f in the measuring chamber are converted into an air flow according to chapter 7.3.7. The difference between the air flow when the filter bag is empty and the air flow when the filter bag is loaded is called airflow waste.
  • Disposable filter bag A disposable filter bag or disposable bag in the sense of the present invention is understood to mean a disposable filter bag.
  • a flat bag is understood to mean filter bags whose filter bag wall is formed from two individual layers of filter material with the same area in such a way that the associated the individual layers are connected to each other only at their peripheral edges (of course the term same area does not exclude that the two individual layers differ from each other in that one of the layers has an inlet opening).
  • connection of the individual layers can be realized by one or more (for example four) welding or adhesive seams along the entire circumference of the two individual layers.
  • the filter bag can be formed by a single layer of filter material, in that it is folded around one of its axes of symmetry and the remaining open peripheral edges of the resulting two partial layers are welded or glued (so-called tubular bag).
  • tubular bag In such a production therefore one circumferential or more (for example three) welding or gluing seams are necessary. Two of these seams then form the filter bag edge, the third seam can also form a filter bag edge or lie on the filter bag surface.
  • Each of the aforementioned single layers of filter material may comprise multiple layers of nonwoven fabric, as is common for nonwoven filter bags today.
  • the welded or adhesive seams can also be designed as a spiral fold.
  • Flat bags may also have so-called gussets. These gussets can be completely unfoldable.
  • a flat bag with such side gussets is shown, for example, in DE 20 2005 000 917 U 1 (see FIG. 1 with folded side folds and FIG. 3 with folded side folds).
  • the gussets may be welded to portions of the peripheral edge.
  • Such a flat bag is shown in DE 10 2008 006 769 A1 (see there in particular Figure 1).
  • EP 2 366 320 A1 and EP 2 366 321 A1 disclose filter bags with surface folds in the sense of the present application.
  • Suction power is the product of negative pressure [kPa] and air flow [l / s] and is designated P 2 according to EN 60312.
  • the efficiency of the motor-blower unit or a vacuum cleaner is calculated from the suction power P 2 and the power consumption Pi according to EN 60312 chapter 5.8 (see in particular chapter 5.8.4., Paragraph 4).
  • the motor-blower unit or the vacuum cleaner is connected to the measuring chamber (version B).
  • version B For any necessary intermediate pieces for connection to the measuring chamber, the explanations in chapter 7.3.7.1 apply.
  • the nominal diameters d 0 of the diaphragms used can be found in the table in Section 7.3.7.3.
  • Pi is the power consumption of the vacuum cleaner (for a given aperture) and P 2 is the air power (for a given aperture), ie the product of airflow (see above) and negative pressure (see below).
  • Negative pressure in the measuring chamber at a given orifice is in accordance with EN 60312, Chapter 5.8.
  • the motor-blower unit is connected directly to the measuring chamber (version B).
  • version B version B
  • any necessary intermediate pieces for connection to the measuring chamber the explanations in chapter 7.3.7.1 apply.
  • the nominal diameters d 0 of the diaphragms used are given in section 7.3.7.3.
  • Average cross-sectional area of a suction hose To determine the average cross-sectional area of a suction hose, the cross-section of the suction hose is measured at 10 points evenly distributed over the suction hose length and the mean of these measurements is determined. The first measurement is performed at one end of the tube and the tenth measurement at the other end of the tube. The measurement of the cross-section is determined with limit gauges for nominal dimensions that correspond to the shape of the cross-sectional area to be measured. For hoses that change their cross-sectional area, the limit gauge is inserted into the suction hose in the direction of the increasing cross-sectional area. Apart from irregular cross-sectional areas, the cross-sectional areas of spiral-wound or helically wound or differently structured suction hoses can also be determined. This method can be used in particular in conical suction hoses.
  • Pouch area of a filter bag designates the area that lies between the marginal welds that define the outer shape of the filter bag. Gussets and surface wrinkles must be taken into account for the calculation. The area of the filling opening including an opening that bende weld is deducted from the surface. It only means the theoretically usable area. Differences in the flow through the bag or due to incomplete unfolding of the filter bag are not taken into account. For filter bags that are not flat bags, of course, all additional areas (eg block bottom bag with side surfaces and face) are used to determine the bag area.
  • volume Filter bag holding space The volume can be determined from the 3D drawing data of the vacuum cleaner or determined by pouring water or granules.
  • Deflection device Deflection devices for deflecting air in the sense of the application are disclosed, for example, in WO 2007 059936 A1, WO 2007 059937 A1, WO 2007 059938 A1 and WO 2007 059939 A1.
  • spacer device is meant an apparatus which ensures that there is a gap between the filter bag and the wall of the filter bag containment space.
  • the Abstandshalteeinnchtung may consist of a bottom and / or at least one side wall and / or a lid, so the filter bag so partially or completely surrounded. It is important to ensure that the contact area between the filter bag and Ab gleichsseinnchtung is minimized.
  • the Abstandshalteeinnchtung may be made of any materials and be removable or permanently installed. If filter bags with surface folds are used, then a spacer fixture specially adapted to these surface folds may be used. How such a Abstandshalteeinnchtung is configured, the WO 2012 126612 (in particular Figures 3 and 4) are removed.
  • An efficient vacuum cleaner has an energy efficiency class of B or better (according to VO 665/2013, ANNEX I) and at the same time a cleaning class of C or better (according to VO 665/2013, APPENDIX I).
  • the demands placed on devices for vacuuming have undergone a significant change in recent years.
  • the VO 666/2013 requires the nominal power consumption of vacuum cleaners from 2017 to be limited to below 900 W.
  • the VO 665/2013 means that in the longer term the annual energy consumption of a vacuum cleaner should be less than 10 kWh. This results in a rated power consumption of a vacuum cleaner of less than 300 W.
  • the users of devices for vacuuming however, expect that the cleaning performance compared to devices for vacuuming, as they are realized today with much higher recording power, not deteriorate.
  • the VO 665/2013 also takes this into account, for example by setting the requirement for an A-rating (carpet cleaning class) for the dust absorption of carpeting at> 91%.
  • the vacuum cleaner Miele S 8340 one of the vacuum cleaners currently considered to be particularly energy-efficient in the art, achieves air data (according to EN 60312 chapter 5.8.4) at aperture 8 (40 mm) and a power consumption Pi of 1310 W (power level on the vacuum cleaner symbol "hard floor, heavily soiled carpets and carpets" in the following "max") a resulting suction air flow of 38.5 l / s.
  • the resulting air flow at a power consumption Pi of 704 W power level on the device symbol "high-quality velor carpets, bridges and runners", hereinafter referred to as "carpet" is insufficient for a satisfactory dust absorption.
  • a power consumption of 704 W at aperture 8 only an air flow of 30.0 l / s is achieved.
  • FIG 1 a and Figure 1 b show an example of a Miele S 8340 with the original supplied by Miele for this vacuum cleaner (suction hose and suction tube) and supplied by Miele original filter bags with an average power consumption in the determination of the performance characteristics when filled dust container of 698th W (carpet) or 1286 W (max) achieved air flow (volume flow in l / s) depending on the filling with up to a maximum of 400 g DMT dust Type 8 according to EN 60312.
  • a motor-blower unit is used whose characteristics, ie their air data are shown in Figure 2a (carpet) and Figure 2b (max).
  • the mean electrical input power of the vacuum cleaner must be clearly differentiated from the mean electrical input power of the motor-blower unit, since the total average electrical input power of the motor-blower unit is substantially converted into the air flow to be achieved, whereas the average electrical input power of the vacuum cleaner for compensation the flow losses that result from the flow paths in the vacuum cleaner (from the floor nozzle to the air outlet from the device - without motor-blower unit) is spent.
  • the average electrical input power of the motor blower unit of the Miele S 8340 is 1 121 W (max) or 622 W (carpet). With this average recording power, aperture 8 can be used (this aperture corresponds approximately to the conditions that are present on hard floor). Air flow of approximately 55.5 l / s (max) and approximately 43.7 l / s (carpet), which, when using this motor-blower unit in the Miele S 8340, finally reaches the airflows already indicated for Aperture 8 (the then actually available for vacuuming) of 38.5 l / s (max) and 29.9 l / s (carpet).
  • the suction hose of the Miele S 8340 has an average cross-sectional area of about 9.1 cm 2 .
  • a filter bag vacuuming apparatus which improves the efficiency of the prior art apparatus and in determining the air data according to EN 60312 (Chapter 5.8 .4) at aperture 8 (40 mm) a suction air flow of more than 33 l / s is achieved, so that a cleaning class of C according to VO 665/2013 or better can be achieved, and wherein the average electrical power consumption of the vacuum cleaner is as low as possible, so that an energy efficiency class of B according to VO 665/2013 or better is achieved, so an efficient vacuum cleaner in the sense of the present invention is realized.
  • This comprises a vacuum cleaner with a suction hose connected to the housing of the vacuum cleaner and a filter bag, in particular a non-woven fabric disposable filter bag, the vacuum cleaner having a motor-blower unit with a mean electrical input power between 1000 W and 200 W.
  • the engine Blower unit designed such that at a mean electrical power input between 1000 W and 800 W, a negative pressure in the measuring chamber at aperture 6 (23 mm) greater than 12.5 kPa and a negative pressure in the measuring chamber at aperture 8 (40 mm) of greater than 4.0 kPa; between 799 W and 600 W a negative pressure in the measuring chamber at orifice 6 of greater than 10.0 kPa and a negative pressure in the measuring chamber at orifice 8 of greater than 3.4 kPa sets; between 599 W and 400 W, a negative pressure in the measuring chamber at orifice 6 of greater than 7.0 kPa and a negative pressure in the measuring chamber at orifice 8 of greater than 2.5 kPa; and between 399 W and 200 W, a negative pressure in the measuring chamber at orifice 6 of greater than 4.0 kPa and a negative pressure in the measuring chamber at orifice 8 of greater than 1.4 kPa is established.
  • This particular characteristic of the motor-blower unit differs from the characteristic usually in devices for vacuuming inserted motor-blower units.
  • a motor-blower unit as specified above in combination with a suction hose with an average cross-sectional area of at least 9.5 cm 2 can be used to increase efficiency for vacuum cleaners and together with the disposable filter bags made of nonwoven fabric in their cleaning effect with devices for Vacuuming are comparable, as they are available today only with much higher recording power.
  • the suction hose must have an average cross-sectional area of at least 9.5 cm 2 , in particular at least 1 1 cm 2 or more particularly at least 13 cm 2 .
  • This cross-sectional area should not be significantly undercut for the pipe section, which establishes the connection between the suction hose and filter bag in the vacuum cleaner.
  • the filter bag may preferably have a bag area of between 1000 cm 2 and 4000 cm 2 .
  • the suction hose may be at least partially tapered and have a larger cross-sectional area at an end nearer to the motor / blower unit than at an end remote from the motor / blower unit.
  • the suction hose may have a minimum and a maximum cross-sectional area and the minimum diameter of the suction hose may be reduced by at least 5%, in particular at least by 20%, from the maximum diameter.
  • the smallest diameter of the conical suction hose may be 35 mm at the near end and 47 mm at the far end.
  • the suction hose may have a cylindrical shape throughout. In addition to good handling, a conical shape of the suction hose can also increase the efficiency of the vacuum cleaner.
  • the suction hose can have a length of 1 m to 3 m.
  • a suction pipe connected to the suction hose may have a diameter of more than 30 mm, preferably more than 33 mm and particularly preferably more than 36 mm.
  • the motor-blower unit may have an efficiency according to EN 60312 of at least 35%, preferably of at least 38% and particularly preferably of at least 40%, at aperture 7 (30 mm).
  • EN 60312 of at least 35%, preferably of at least 38% and particularly preferably of at least 40%, at aperture 7 (30 mm).
  • the spacer means may partially enclose the filter bag, at least on one side of the filter bag, or fully circumferentially.
  • the filter bag is at least partially spaced from at least one inner housing wall of the device for vacuuming. If the spacer means is to completely enclose the filter bag, then it will have a bottom, a lid and a number of side walls corresponding to the filter bag receiving space.
  • the spacer means is formed such that overflow paths, i.e. between the bottom and / or the at least one side wall and / or the lid, are formed. Fluid connections are provided. As a result, the entire surface of the filter bag can be utilized to suck the air from the filter bag into the motor-blower unit.
  • the spacer means may be integrally formed with the filter bag accommodating space of the vacuum cleaner. Alternatively, it may also be provided as a separate unit that can be completely removed from the filter bag receiving space.
  • an air intake opening in the at least one side wall or in the bottom or in the cover through which during operation of the vacuum cleaner air from the filter bag receiving space in the engine / Blower unit is sucked, a motor protection filter holder, and the Abstandshalteeinnchtung, wherein the Abstandshalteeinnchtung of the motor protection filter holder is arranged spaced.
  • the spacer device may in this case be in the form of a perforated plate and / or in the form of a grid and / or in the form of webs, web-shaped sections, brackets, bow-shaped sections, ribs, rib-shaped sections and / or pins.
  • the motor protection filter holder may be formed in these developments so that a motor protection filter in the motor protection filter holder z. B. is inserted.
  • the material of the motor protection filter can have a sufficient intrinsic strength in order, for example, to be inserted, or it can be provided with a frame or stabilizing element (eg, network). This makes it possible to change the motor protection filter in a particularly simple manner.
  • the filter bag may be provided in the form of a flat bag.
  • the flat bag form is the most common form for nonwoven bags since bags of this shape are very easy to manufacture.
  • nonwoven filter material is very difficult to permanently fold due to the high resilience, so that the production of more complex bag shapes, such as block bottom bags or other bottom bag shapes, while possible, but very expensive and expensive.
  • the filter bag may in particular have surface folds.
  • the filter bag may be provided with at least one deflection device. Accordingly, the abovementioned spacer device can then be designed to accommodate filter bags with surface folds.
  • Figures 2a and 2b air data for a motor-blower unit, which according to the prior
  • Figures 3a and 3b are air data for a motor-blower unit which is particularly suitable for implementing the present invention
  • Figure 4 the dependence of the achieved air flow from the filling of the filter bag for a device according to the invention
  • Figure 6 is a representation of a filter bag, especially for the present
  • Invention is suitable.
  • an engine-blower unit having a specific characteristic is used in combination with a relatively large-diameter suction hose.
  • this combination leads to efficient vacuum cleaners in the sense of the invention, ie a vacuum cleaner which is in an energy efficiency class of B or better (according to VO 665/2013, ANNEX I) and at the same time in a cleaning class of C or better (according to VO 665 / 2013, ANNEX I).
  • the motor-blower unit is characterized by a high volume flow, a high air flow and a high efficiency at aperture 7 (30 mm) and 8 (40 mm). The corresponding values are listed in Table 1.
  • FIGS. 3 a and 3 b show air data for an exemplary embodiment of the motor-blower unit as used in accordance with the invention, here an engine Blower unit from the company Domel with the type designation 467.3.601-7.
  • the abscissa shows the suction air flow in units of dm 3 / s or l / s.
  • the ordinate shows values of the negative pressure (in kPa), the efficiency (in%), the power (in W) and the air power (in W).
  • FIG. 3 a shows results for a mean electrical power input of approximately 480 W, in FIG. 3 b of approximately 976 W.
  • FIG. 2 a shows the air data for a mean electrical power of about 622 W and in FIG. 2 b of about 1 121 W.
  • Table 1 compares the relevant measurements for an exemplary embodiment of the engine blower unit of the present invention and a prior art motor blower unit.
  • both the air flow at aperture 7 and aperture 8 and the air power at aperture 7 and aperture 8 and the efficiency at aperture 7 and aperture 8 for the exemplary embodiment are much higher than for the prior art.
  • the air performance for the exemplary embodiment is about 70% higher than for the prior art with a mean electrical input of 622 W.
  • the efficiency and air flow of the present embodiment are superior to the prior art motor-blower unit.
  • a very good air flow can be achieved with which a good cleaning efficiency class can be realized.
  • FIG. 4 shows results for an average power of about 670 W using a flat bag with gussets according to FIG. 6 and a conical hose with a minimum diameter of 42 mm and a maximum diameter of 47 mm using a spacer.
  • the spacer device used is shown in detail in FIGS. 5a to 5o.
  • Figure 5p the spacer device is shown together with the motor protection filter holder.
  • the arrangement shown ensures that there is always a gap between the motor protection filter and the filter bag and that the filter bag does not cover the motor protection filter holder, which would result in the air from the filter bag only being removed from the area of the filter bag is sucked, which covers the motor protection filter.
  • a 3D data set of the vacuuming device described in Figure 5 can be obtained from Eurofilters N.V., Lieven Gevaertlaan 21, 3900 Overpelt, Belgium.
  • the spacer device can be designed to accommodate a special filter bag, for example a filter bag according to FIG.
  • the filter bag used has an area of about 1800 cm 2 .
  • the filter material used was the MTTS9 material supplied by Eurofilters NV, Lieven Gevaertlaan 21, 3900 Overpelt, Belgium. It is a multi-layer filter material with a dust storage layer and a meltblown fine filter layer.
  • the filter bag has a deflecting device in the form of a slit nonwoven fabric of the material LF75, which can also be obtained from Eurofilters NV, Lieven Gevaertlaan 21, 3900 Overpelt, Belgium.
  • the embodiment of the invention corresponds to the prior art, as described above. Even with an average power consumption of only approx. 670 W, a volume flow of 41 l / s is achieved when the filter bag is empty; after filling with 400 g of DMT Type 8 and using a spacer, a flow rate of almost 37 l / s is achieved.
  • the achievable volume flows are significantly higher than in the prior art, in which can be achieved with an average capacity of about 698 W only a flow of 30 l / s with empty filter bag.
  • the volume flow is even lower than 27 l / s and is thus about 10 l / s lower than in the embodiment according to the invention.

Abstract

L'invention concerne un dispositif d'aspiration de poussières comprenant un aspirateur, un tuyau d'aspiration relié au boîtier de l'aspirateur, et un sac filtrant. L'aspirateur à cuve comporte une soufflante à moteur qui est conçue de telle sorte que sa puissance électrique d'entrée moyenne se situe entre 1000 W et 200 W et, pour une puissance électrique moyenne comprise entre 1000 W et 800 W, il génère une dépression dans la chambre de mesure de plus de 12,5 kPa pour une ouverture de 6 et une dépression dans la chambre de mesure de plus de 4,0 kPa pour une ouverture de 8, pour une puissance comprise entre 799 W et 600 W une dépression dans la chambre de mesure de plus de 10,0 kPa pour une ouverture de 6 et une dépression dans la chambre de mesure de plus de 3,4 kPa pour une ouverture de 8, pour une puissance comprise entre 599 W et 400 W une dépression dans la chambre de mesure de plus de 7,0 kPa pour une ouverture de 6, et une dépression dans la chambre de mesure de plus de 2,5 kPa pour une ouverture de 8, pour une puissance comprise entre 399 W et 200 W une dépression dans la chambre de mesure de plus de 4,0 kPa pour une ouverture de 6 et une dépression dans la chambre de mesure de plus de 1,4 kPa pour une ouverture de 8. Le tube d'aspiration a une section transversale moyenne d'au moins 9,5 cm2, en particulier d'au moins 11 cm2 ou de 13 cm2, et le sac filtrant est fabriqué à partir d'un non tissé.
PCT/EP2015/055137 2014-04-04 2015-03-12 Dispositif d'aspiration de poussières WO2015150039A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/300,198 US20170172361A1 (en) 2014-04-04 2015-03-12 Vacuuming Apparatus
CN201580030176.4A CN106455881B (zh) 2014-04-04 2015-03-12 抽真空设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14163579.7 2014-04-04
EP14163579.7A EP2926706A1 (fr) 2014-04-04 2014-04-04 Dispositif d'aspiration de poussière

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MX2019000833A (es) * 2016-07-19 2019-07-04 Shop Vac Corp Aspiradora en vehiculos.
WO2018054501A1 (fr) * 2016-09-26 2018-03-29 Aktiebolaget Electrolux Aspirateur à flux d'air amélioré

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JPS56132926A (en) * 1980-06-20 1981-10-17 Hitachi Ltd Electric cleaner
DE3041167A1 (de) * 1980-10-31 1982-05-13 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Staubsauger mit regelung des unterdruckes zwischen dem staubfilter und dem saugwerkzeug
US4591369A (en) * 1984-10-24 1986-05-27 Whirlpool Corporation Dust bag mount arrangement for canister vacuum cleaner
DE8506818U1 (de) * 1985-03-08 1986-07-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Filteranordnung in einem Staubsauger
DE19942483C1 (de) * 1999-09-07 2001-02-22 Miele & Cie Staubsauger, insbesondere Bodenstaubsauger mit einer Staubbeutelhalterung
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WO2010018101A1 (fr) * 2008-08-13 2010-02-18 BSH Bosch und Siemens Hausgeräte GmbH Tuyau d'aspirateur et garniture de tuyau pour un aspirateur de poussière à grande puissance d'aspiration
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EP2236072A2 (fr) * 2009-03-31 2010-10-06 BSH Bosch und Siemens Hausgeräte GmbH Aspirateur doté d'un dispositif supplémentaire
WO2011020699A1 (fr) * 2009-08-17 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Aspirateur équipé d'un support de filtre
EP2374395A1 (fr) * 2010-04-06 2011-10-12 Miele & Cie. KG Aspirateur avec blocage de sac
EP2374394A1 (fr) * 2010-04-06 2011-10-12 Miele & Cie. KG Aspirateur doté d'une grille de retenue pour un filtre de protection de moteur
WO2012126613A1 (fr) * 2011-03-22 2012-09-27 Eurofilters Holding N.V. Dispositif d'aspiration comprenant un aspirateur et un sac filtrant
EP2641523A1 (fr) * 2012-03-22 2013-09-25 Eurofilters Holding N.V. Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant

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CN106455881A (zh) 2017-02-22
EP2926706A1 (fr) 2015-10-07
US20170172361A1 (en) 2017-06-22
CN106455881B (zh) 2019-08-20

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