EP2644077A1 - Procédé d'optimisation d'un dispositif d'aspiration doté d'un aspirateur manuel, compact ou vertical et d'un sac filtrant - Google Patents

Procédé d'optimisation d'un dispositif d'aspiration doté d'un aspirateur manuel, compact ou vertical et d'un sac filtrant Download PDF

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Publication number
EP2644077A1
EP2644077A1 EP12002205.8A EP12002205A EP2644077A1 EP 2644077 A1 EP2644077 A1 EP 2644077A1 EP 12002205 A EP12002205 A EP 12002205A EP 2644077 A1 EP2644077 A1 EP 2644077A1
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EP
European Patent Office
Prior art keywords
filter bag
standard
kpa
vacuum cleaner
receiving space
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.)
Pending
Application number
EP12002205.8A
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German (de)
English (en)
Inventor
Jan Schultink
Ralf Sauer
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.)
Eurofilters NV
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP12002205.8A priority Critical patent/EP2644077A1/fr
Priority to CN201380016912.1A priority patent/CN104244791A/zh
Priority to AU2013242329A priority patent/AU2013242329B2/en
Priority to RU2014133465A priority patent/RU2620483C2/ru
Priority to PCT/EP2013/053463 priority patent/WO2013143790A2/fr
Priority to US14/386,690 priority patent/US10052003B2/en
Publication of EP2644077A1 publication Critical patent/EP2644077A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—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
    • 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
    • A47L9/22—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
    • A47L9/28—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
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49716—Converting

Definitions

  • the invention relates to a method for optimizing a vacuum cleaning system comprising a substantially hose and tube-less vacuum cleaner and a filter bag, wherein the vacuum cleaner a motor-blower unit with a motor-fan characteristic curve, a filter bag receiving space, a connection piece for the filter bag and a floor nozzle and wherein the filter bag comprises a non-woven fabric filter material. Furthermore, the invention relates to a vacuum cleaning system in which the same was used for the development and / or production of such a method for optimization.
  • the term essentially hose and tubeless vacuum cleaner device is used in the present case to distinguish it from the so-called floor vacuum cleaner, which is a housing which is movable on rollers and / or skids on the ground and in which a motor-blower unit and the dust collection room located.
  • the housing is connected in such a floor vacuum cleaner device via a long hose with a long tube, at the end of the suction nozzle, usually in the form of a replaceable floor nozzle attached.
  • These floor vacuum cleaners are not the subject of the present invention.
  • the lengths of tubing and tubing in such floor vacuum cleaners are typically in the range of 1.4m to 1.9m for the tubing and 0.6m to 1.0m for the tubing.
  • the tube is also referred to as a suction tube and the hose as a suction hose.
  • a substantially hose and tube-less vacuum cleaner apparatus encompassed by the present invention, on the other hand, is the hand-held vacuum cleaner (or hand-held vacuum cleaner). It consists of a housing with motor-blower unit and filter bag receiving space with a filter bag. At one end of the housing is a handle. At the other end, a floor nozzle is exchangeable over a very short pipe. When vacuuming the floor, the housing together with the floor nozzle is moved back and forth and only the floor plate and the rollers of the floor nozzle touch the floor. Such an arrangement does not require a hose and a long pipe; typically the pipes or connecting pipes used in such devices are not longer than 0.4 m).
  • the upright vacuum cleaner is a combination of a bottom part with floor nozzle, which often has a motor-driven brush roller, and a top part, in which the dust collection container is provided.
  • the floor nozzle is not interchangeable and connected via a hose and / or a pipe to the dust collector.
  • This tube and hose are also called Upright vacuum cleaners as a connecting pipe and connecting hose.
  • the motor-blower unit may be disposed in the bottom part or in the top part.
  • Included in the invention are now upright vacuum cleaners in which the total length of hose and / or pipe is less than 0.5 m. In particular, if the filter bag is provided on the head (ie with an opening facing downwards), then the connection of hose and / or pipe between floor nozzle and filter bag can be made very short ( ⁇ 0.3 m).
  • FIG. 1 Another example of a vacuum cleaner, which is almost completely tubular and almost tubular, encompassed by the present invention is the compact vacuum cleaner.
  • This consists of a housing with motor-blower unit and filter bag receiving space and filter bag, which is mounted directly on the floor nozzle, or in which a floor nozzle is integrated.
  • This housing is connected to a handle with a handle.
  • Motor-blower unit is the combination of an electric motor with a single or multi-stage blower. Usually, the two components are mounted on a common axis and matched in terms of performance optimally matched.
  • the essentially hose and tube-less vacuum cleaner with filter bag according to EN 60312 (see especially EN 60312, Chapter 5.8 air data) is measured.
  • the hand-held vacuum cleaner without a floor nozzle by means of an adapter directly to a measuring box, as in EN 60312, Chapter 7.2.7. is described, connected.
  • the Upright vacuum cleaner and the compact vacuum cleaner are connected with a floor nozzle, ie like a brush vacuum cleaner, as described in chapter 5.8.1 of EN 60312.
  • Fig. 1a shows how a hand-held vacuum cleaner according to the present invention is to be connected to the measuring box.
  • Fig. 1 b to Fig. 1 e are technical drawings of a concrete design of the connection to the measuring box, which are suitable for immediate reproduction.
  • any other configurations are possible as long as the internal dimensions for the air ducts are not changed (for example, the radius of 20 mm in Fig. 1 b "detail 02" or the inner diameter of the fitting in Fig. 1 c "detail 05).
  • Fig. 1i and Fig. 1j show a schematic representation of the adapter, as it was used for the known from the prior art hand-vacuum cleaner Vorwerk VK140.
  • the adapter part, which in Fig. 1j is shown via the adapter part, which in Fig. 1 b shown connected to the measuring box.
  • the inner diameter of the tubular part is 33 mm.
  • the negative pressure h and power consumption P 1 which are set at the different apertures 0 to 9, are measured.
  • the power consumption at aperture 8 (40 mm) is defined. This results in the practice-relevant values, since it is usually worked on different floor coverings approximately in this throttle state.
  • the average recording power P 1m [W] defines the mean value of the recording power at aperture 0 (0 mm) and aperture 9 (50 mm).
  • the air flow q (also referred to in the prior art as suction air flow or volume flow) is determined for each diaphragm from the measurement for the negative pressure (see EN 60312, Chapter 7.2.7.). If necessary, the measured values must be corrected in accordance with EN 60312, in particular with regard to standard air density (see EN 60312, Chapter 7.2.7.4).
  • the airflow curve h (q) describes the relationship between the negative pressure and the airflow of a vacuum cleaner. It is obtained by interpolation, as described in EN 60312 (see EN 60312, Chapter 7.2.7.5), between the pairs of values obtained for the different orifices from the measured negative pressure and the determined airflow. The intersection with the x-axis gives the maximum achievable with the device air flow q max .
  • the negative pressure here is 0, so the device runs unthrottled.
  • intersection with the y-axis indicates the maximum achievable with the device vacuum h max .
  • the air flow is equal to 0, the device is throttled maximum. This value results at aperture 0.
  • the linear interpolation between the measuring points for determining the airflow curve prescribed in the standard EN 60312 is a very good approximation in the case of radial blowers and is therefore always used here when the radial-type motor-blower unit is.
  • a quadratic interpolation is used analogously to the standard EN 60312.
  • intersections of the airflow curve with the coordinate axes are (regardless of the type of interpolation selected) characteristic of the blower geometry, the power consumption and the flow resistance in the vacuum cleaner.
  • the suction power characteristic P 2 can be derived from the air flow curve (see EN 60312, chapter 5.8.3, in the prior art this suction power is also referred to as air flow).
  • the maximum of this curve is referred to as the maximum suction power P 2max of the vacuum cleaner.
  • the efficiency ⁇ is calculated as the ratio of the related values (ie values of the same air flow) for the suction power P 2 and the power consumption P 1 .
  • the maximum of this curve corresponds to the maximum efficiency ⁇ max of the vacuum cleaner.
  • Efficiency ⁇ is given in [%] according to EN 60312.
  • the motor-fan characteristic describes the relationship between air flow and negative pressure of not built into a vacuum cleaner unit motor-fan unit at different throttle states, which in turn are simulated by the different apertures.
  • the determination of the motor-fan characteristic curve is analogous to the determination of the airflow curve according to EN 60312.
  • Fig. 1f to Fig. 1g and Fig. 1b are technical drawings of a concrete embodiment of the connection of the motor-blower unit, which is used in the present invention, to the measuring box.
  • the wall of the measuring box is in Fig. 1f marked with I.
  • any other configurations are possible, as long as the inner dimensions of the air ducts are not changed (the radius of 20 mm in Fig. 1f "detail 02" and the conical extension of the air duct from 35 mm to 40 mm in Fig. 1g "detail 10").
  • the motor-blower unit according to the prior art ie the unit of the hand-vacuum cleaner Vortechnik VK140, is correspondingly connected to the measuring box.
  • negative pressure and power consumption are measured at the different apertures 0 to 9. These measured values are corrected if necessary (see above).
  • the air flow is determined for the corresponding orifices from the measured vacuum values.
  • the motor-fan characteristic h (q) describes the relationship between the negative pressure and the air flow of the measured engine-fan unit. It results in turn from a linear or quadratic interpolation (depending on the motor-blower unit used, see above) between the pairs of values obtained for the different diaphragms from the measured negative pressure and the determined air flow.
  • the point of intersection of the characteristic curve M with the x-axis in turn defines the maximum airflow q max achievable by the motor-blower unit.
  • the vacuum at this point is 0, the motor-blower unit is running unthrottled.
  • the intersection with the y-axis again indicates the maximum negative pressure h max .
  • the air flow is equal to 0 in this point, the device is completely throttled (aperture 0).
  • the suction power characteristic P 2 can be derived from the motor-fan characteristic curve.
  • the maximum of this curve is referred to as the maximum suction power P 2max of the motor-blower unit.
  • the efficiency ⁇ is calculated as the ratio of the related values (ie values of the same air flow) for the suction power P 2 and the power consumption P 1 .
  • the maximum of this curve corresponds to the maximum efficiency ⁇ max of the motor-blower unit.
  • Efficiency ⁇ is given in [%] according to EN 60312.
  • the efficiency reduction is defined in the hand-held vacuum cleaner as the difference between the maximum efficiency of the motor-blower unit and the maximum efficiency of the vacuum cleaner with empty filter bag and without floor nozzle.
  • the floor nozzle can not be separated from the unit or is an integral part of the unit. In these cases, the efficiency reduction is defined as the difference between the maximum efficiency of the motor-blower unit and the maximum efficiency of the vacuum cleaning system with empty filter bag and with floor nozzle.
  • the efficiency reduction is a measure of the losses of the vacuum cleaning system
  • the efficiency reduction is given in [%].
  • the flow velocity in the exhaust air of the Kanomax Model 6813 vane anemometer with APT275 impeller probe of 70 mm diameter is measured (Manufacturer of this anemometer is Kanomax, 219 US Highway 206, PO Box 372 Andover, NJ 07821, www.kanomax-usa.com).
  • the vane probe was fastened above the blow-out opening of the vacuum cleaner device at a position at which the above-mentioned anemometer indicates a flow velocity value which is approximately in the middle of the measuring range of the anemometer, ie approximately 20 m / s. This serves to ensure that the flow velocity of the exhaust air is within the measuring range of the anemometer.
  • This value obtained for the air flow is transmitted in the determined air flow curve to read the corresponding negative pressure, to determine the suction power P 2 from both values, and together with the power consumption P 1 corresponding to the air flow, the efficiency of normal sucking on the standard carpet to determine the type of Wilton.
  • the negative pressure value can also be calculated, namely by calculating a regression line for the airflow curve and the airflow value directly into this regression equation (this regression equation is linear or quadratic, depending on the type of motor-blower unit, see above) to calculate the negative pressure (see also EN 60312, chapter 7.2.7.5).
  • the standard filling of the vacuum cleaning system with 400 g DMT8 standard dust is carried out according to chapter 5.9 of EN 60312.
  • the adapters used for the various vacuum cleaners are in Fig. 1i (Prior art) and Fig. 1c (Invention) and described above in connection with these figures.
  • the DMT8 standard dust must be provided in accordance with EN 60312.
  • the dust absorption of carpets is determined according to EN 60312, chapter 5.3.
  • the pumping speed with a filled filter bag is determined according to chapter 5.9. Contrary to the demolition conditions in Chapter 5.9.1.3, 400 g of DMT8 dust are always sucked in.
  • the area of the rectangle corresponding to the opening area is determined in the context of the present invention by means of the so-called minimally circumscribing rectangle which is well known from image processing (see, for example, in US Pat Tamara Ostwald, "Object Identification Using Regions Descriptive Features in Hierarchically Partitioned Images", Aachener Kunststoffen Kunststoffbericht fürberichtatik, Volume 04, 2005 .)
  • the opening area is in one plane (two-dimensional opening area with two-dimensional edge) or the opening area is extending beyond one plane (three-dimensional opening area with three-dimensional edge).
  • the area of the rectangle corresponding to the opening area is determined directly by the area of the minimally circumscribing rectangle of the two-dimensional edge of the opening area.
  • the area of the rectangle corresponding to the opening area represents a good and unambiguous approximation of the opening area of the vacuum cleaner device, which can be easily determined even with complex opening areas and opening edges.
  • the surface of a filter bag in the sense of the present invention is determined on the filter bag when it lies flat in a completely unfolded form, ie in a 2-dimensional form.
  • the gussets are fully unfolded to determine the area.
  • the filter bag has welded gussets, these are not taken into account when determining the area.
  • the area of a filter bag having a rectangular shape results from taking the filter bag out of its packaging, fully unfolding it, measuring its length and width, and multiplying them by one another.
  • Flat bags in the sense of the present invention may also have so-called gussets. These side folds can be completely unfoldable.
  • a flat bag with such gussets is for example in the DE 20 2005 000 917 U1 shown (see there Fig. 1 with folded gussets and Fig. 3 with unfolded gussets).
  • the gussets may be welded to portions of the peripheral edge.
  • Such a flat bag is in the DE 10 2008 006 769 A1 shown (see there in particular Fig. 1 ).
  • the receiving volume of the filter bag in the filter bag receiving space is determined according to the present invention according to EN 60312, Chapter 5.7.
  • the maximum receiving volume of the filter bag is determined according to the present invention in analogy to EN 60312, Chapter 5.7.
  • EN 60312, Chapter 5.7 The only difference to EN 60312, Chapter 5.7, is that the filter bag is designed to be suspended in a chamber the volume of which is at least sufficient to prevent the filter bag from fully expanding to its maximum possible size when fully filled.
  • a cube-shaped chamber having an edge length equal to the root of the sum of the squares of maximum length and maximum width of the filter bag satisfies this requirement.
  • the surface of the filter bag in the sense of the present invention is defined here as twice the area occupied by the filter bag when it lies flat in a completely unfolded form, ie in a 2-dimensional form.
  • the area of the entrance opening and the area of the welds are not taken into account as they are comparatively small in relation to the actual filter area.
  • any foldings provided in the filter material itself are disregarded.
  • the surface of a rectangular filter bag thus results simply from being taken out of its package, fully unfolded, measured its length and width, multiplied together and the result taken two times.
  • the surface of the filter bag accommodation space in the sense of the present invention is defined as the surface that the filter bag accommodation space would have (if any) all the facilities (ribs, rib sections, stirrups, etc.) provided in the filter bag accommodation space for the filter material of the filter bag Filter bag from the wall of the filter bag receiving space remains isolated (which is required for a smooth filter material to ensure that even air can flow through the filter bag) remain disregarded.
  • the surface of a cuboid filter bag receiving space with ribs thus results as maximum length times maximum width times maximum height of the filter bag receiving space without taking into account the dimensions of the ribs.
  • the surface of the filter bag accommodating space enters the above relation only as a lower limit, in order to determine whether a particular vacuum cleaner in combination with the filter bag makes use of the previously discussed embodiment, in particular if the filter bag accommodation space is of complicated geometric shape, alternatively the surface of a parallelepiped body completely enclosing the filter bag accommodation space can be determined; the surface of such a body is obtained, for example, if one determines the surface of a cuboid with the edge lengths which correspond to the maximum extent of the actual filter bag receiving space in the length, width and height direction (length, width and height directions are of course orthogonal to one another) ,
  • vacuum cleaning systems Due to the scarcity of resources, it is becoming increasingly important to save energy in the areas of daily life, for example in the field of household appliances, such as vacuum systems. It is desirable here that the function of such vacuum cleaning systems is not limited compared to the previously known.
  • Such energy saving presupposes that the vacuum cleaning systems are optimized with regard to their energy consumption, whereby the function of such optimized vacuum cleaning systems, ie in particular the dust absorption, should not be impaired.
  • the components of a vacuum cleaner with a substantially hose and tube-less vacuum cleaner and a filter bag having a motor-blower unit with a motor-fan characteristic curve, a filter bag receiving space and a floor nozzle, and wherein the Filter bag comprises a filter material made of nonwoven fabric, optimized so that at a given electrical power consumption, also referred to as power consumption, a maximum suction power according to EN 60312 is achieved.
  • the power consumption is in the range of about 900 W.
  • Such an optimized vacuum cleaning system is, for example, the Vorwerk VK 140 vacuum cleaner system.
  • an empty vacuum cleaner filter bag With an empty vacuum cleaner filter bag, it can achieve a dust absorption in accordance with standard EN 60312 for the Wilton standard carpet of about 84%. It should be noted, however, that the good dust absorption values come about through the support of the electric motor driven floor nozzle. The power consumption of the floor nozzle must be added to the electrical power consumption of the vacuum cleaner to be able to assess the performance and efficiency of the device.
  • Fig. 2a shows the air data of the motor-blower units used in the Vortechnik VK 140 vacuum system
  • Fig. 2b show the air data for this vacuum cleaning system with empty filter bag
  • Fig. 2c the air data for this vacuum cleaner system with filter bag filled with 400 g DMT8 dust.
  • the object of the invention is to optimize vacuum cleaning systems consisting essentially of tubular and tubular vacuum cleaners and filter bags in such a way that the electrical power consumption of the vacuum cleaner of the system can be significantly reduced without the dust receptacle according to EN 60312 is affected.
  • a method for optimizing a vacuum cleaning system with a substantially hose and tube-less vacuum cleaner and a filter bag wherein the substantially hose and tube-less vacuum cleaner a motor-blower unit with a motor-fan characteristic curve, a filter bag receiving space, a connecting piece for the filter bag and a floor nozzle, and wherein the filter bag comprises a non-woven fabric filter material, provided with the following step:
  • a Vorwerk VK140 has a power consumption of 942 W for the vacuum cleaner and an additional 130 W for the electric brush.
  • the electrical power consumption of the vacuum cleaning system optimized with the method according to the invention over the Vortechnik VK 140 can be reduced by 63%.
  • the method according to the invention can be developed in such a way that first of all an airflow curve is determined from the motor-blower characteristic and size, shape and material of the filter bag and size and shape of the filter bag receiving space, which is matched to the floor nozzle so that when sucking on the standard carpet Wilton achieves the highest possible efficiency.
  • This development represents a particularly efficient implementation of the method described above.
  • the vacuum cleaning system also has a long service life.
  • the other components of the vacuum system are adapted particularly efficient to the motor-blower unit
  • the co-tuning may also result in the efficiency reduction between the maximum efficiency of the motor-blower unit and the maximum efficiency of the vacuum system being less than 40 in the case of a filter bag filled with 400 g DMT8 standard dust and without a bottom nozzle %, preferably less than 30%, most preferably less than 25%.
  • This development is characterized by a particularly efficient adaptation of the other components of the vacuum system to the motor-blower unit with a long service life.
  • the co-tuning can be developed so that the suction power of the vacuum system in normal sucking on the standard carpet Wilton with empty filter bag at least 100 W, preferably at least 150 W, most preferably at least 200 W is and / or that the suction power of the vacuum suction system in the standard vacuuming on the Wilton standard carpet at 400 g DMT8 standard dust filled filter bag is at least 70 W, preferably at least 100 W, most preferably at least 130 W.
  • the system can be tuned such that the air flow at normal sucking on the standard carpet Wilton with empty filter bag at least 20 l / s, preferably at least 23 l / s, particularly preferred is at least 26 l / s and / or that the air flow in the standard suction on the standard carpet of the type Wilton at at least 20 l / s, preferably at least 23 l / s, more preferably at least 25 l / s in filter bag filled with 400 g DMT8 standard dust.
  • a filter bag in the form of a flat bag with a first and a second filter bag wall is used, the first and / or the second filter bag wall having at least five folds, wherein the at least five folds form at least one surface fold, the maximum height before the first use of the filter bag in a substantially tubular and tubular vacuum cleaner device is smaller than the maximum height corresponding maximum width.
  • each fold before the first use of the filter bag in a substantially tubular and tubular vacuum cleaner have a length which is at least half of the total extent of the filter bag in the direction of the fold, preferably substantially the total extent of the filter bag in the direction of Fold, corresponds.
  • each fold of the flat bag used before the first use of the filter bag in a substantially tubular and tubular vacuum cleaner a fold height between 3 mm and 50 mm, preferably between 5 mm and 15 mm, and / or a fold width between 3 mm and 50 mm, preferably between 5 mm and 15 mm.
  • Such flat bags are from the EP 2 366 321 A1 known and represent embodiments of flat bags, which are particularly suitable for all previously described inventive method for optimizing the question Staubsaugsystems.
  • any surface fold of the filter bag employed may have areas lying in the surface of the filter bag wall and areas protruding beyond the surface of the filter bag wall and deployable in the suction mode
  • the substantially hose and tubeless vacuum cleaner having a rigid bag filter bag receiving space wherein at least one first spacer means is provided on the walls of the filter bag containment space such as to keep the areas of at least one surface fold located in the surface of the filter bag wall spaced from the wall of the filter bag containment space, and at least one second spacer means is provided to define the deployed areas which holds at least one surface fold away from the wall of the filter bag receiving space.
  • the height of the first and / or the second spacer means with respect to the wall of the filter bag receiving space in a range of 5 mm to 60 mm, preferably from 10 mm to 30 mm lie.
  • the surface fold may unfold to such an extent Most of the surface of the surface folding forming filter material is flowed. This increases the effective filter area of the filter bag (as opposed to use in a conventional vacuum cleaner) so that the dust holding capacity of the filter bag can be further increased with higher separation efficiency and longer service life over this conventional device.
  • Such spacer devices are therefore particularly suitable for the optimization method according to the invention.
  • the above-described methods can also be further developed by using an engine / blower unit whose motor / blower characteristic curve is provided such that at aperture 0 a negative pressure of between 6 kPa and 23 kPa, preferably between 8 kPa and 20 kPa, most preferably between 8 kPa and 15 kPa, and a maximum air flow of at least 50 l / s, preferably at least 60 l / s, most preferably at least 70 l / s.
  • Motor-blower units with such a motor-fan characteristic have surprisingly led to a vacuum cleaning system with a particularly low electrical power consumption.
  • a filter bag in the form of a flat bag can be used for optimizing, and a substantially hose and tube-less vacuum cleaner with a filter bag receiving space with rigid walls are used, the filter bag receiving space a closable by a flap opening with a predetermined Has opening area through which the filter bag is inserted into the filter bag receiving space, and wherein the ratio of the area of a rectangle corresponding to the opening area and the surface of the filter bag is greater than 1.0.
  • the opening area in relation to the area of the filter bag satisfies this relation, then it is ensured that the filter bag in the filter bag receiving space is substantially complete unfolded can be introduced. An overlap of the two individual layers or an overlap of one of the two individual layers with itself is thus avoided. It is from the beginning of the suction to (for this filter bag) the majority of the entire filter surface of the filter bag available and the filter properties of the filter bag, especially the achievable for the filter bag dust holding capacity with high separation efficiency and long life, are thus optimally utilized from the beginning.
  • a filter bag in the form of a flat bag can be used, and a substantially tubular vacuum cleaning device with a filter bag receiving space with rigid walls can be used, wherein the ratio of the receiving volume of the filter bag in the filter bag receiving space to the maximum receiving volume of the filter bag is greater than 0.70, preferably greater than 0.75, most preferably greater than 0.8.
  • a filter bag accommodating space is designed such that the filter bag provided for it fulfills the above-mentioned conditions, then it is ensured that the entire filter surface of the filter bag is available during the entire suction operation (until the bag is changed) and thus the filter bag becomes available is filled optimally during operation.
  • the filter properties of the filter bag in particular the dust absorption capacity achievable for the filter bag with high separation efficiency and long service life, are thus optimally utilized until the filter bag is changed.
  • the ratio of the surface of the filter bag receiving space and the surface of the filter bag may be greater than 0.90, preferably greater than 0.95, most preferably greater than 1.0.
  • All of the above-described methods can be further developed by optimizing the inner diameter of the connecting piece so that it is greater than the smallest inner diameter of the pipe and / or hose connection, in particular less than or equal to the largest inner diameter of the pipe and pipe connection / or hose, is.
  • the invention also relates to a vacuum cleaner system comprising a substantially hose and tubeless vacuum cleaner and a filter bag, the substantially hose and tubeless vacuum cleaner having an engine / blower unit with a motor / blower characteristic, a filter bag receiving space, a filter bag neck and a bottom nozzle, and wherein the filter bag comprises a non-woven fabric filter material, wherein one of the previously described methods has been used in the development and / or manufacture of the system.
  • different motor-fan units with different motor-fan characteristics filter bags with different sizes, different shapes and made of different materials, differently shaped filter bag receiving spaces, differently shaped connecting pieces and different bottom nozzles are combined together until in the Vacuum suction system in accordance with standard suction on a standard carpet of the Wilton type with empty filter bag an efficiency of at least 30%, preferably at least 33%, most preferably at least 36%.
  • an airflow curve is first determined for various engine-blower units with different engine-blower characteristics, for different filter bags of different sizes, different shapes and materials, for differently shaped filter bag containment spaces, and for variously shaped ports , This is then matched with different floor nozzles so that in the vacuum cleaning system in accordance with standard suction on a standard carpet of the Wilton type with empty filter bag an efficiency of at least 30%, preferably at least 33%, most preferably at least 36%.
  • various motor-fan units having different motor-fan characteristics, filter bags of different sizes, shapes and materials, differently shaped filter bag receiving spaces, variously shaped nozzles and various bottom nozzles are combined together until standard filling of the vacuum cleaning system with 400 g of DMT8 standard dust during standard suction on the Wilton standard carpet, an efficiency of at least 20%, preferably at least 23%, most preferably at least 25%.
  • the optimization is carried out in such a way that, furthermore, the optimization criteria that are specified in the individual embodiments Subclaims are specified to be met. Any combinations of these criteria are also possible.
  • the filter material CS50 was used for both filter bags.
  • Spunbond 17 g / m 2 , netting 8 g / m 2 / meltblown 40 g / m 2 / spunbond 17 g / m 2 / PP staple fibers 50 to 60 g / this material is a laminate with the structure viewed from the outflow side.
  • the filter material CS50 can be obtained from Eurofilters NV (Lieven Gevaertlaan 21, Nolimpark 1013, 3900 Overpelt, Belgium). Both the filter bags with and the filter bags without surface folding have the dimensions 290 mm x 290 mm.
  • Fig. 3 It is shown how a fold fixation for dovetail folds can be made.
  • Fig. 3 Here, the top view of a filter material web, which comprises the dovetail folds, and an overlying nonwoven material web, from which ultimately the fleece strips used for folding fixation are formed. From the nonwoven material web (which may for example consist of a spunbonded fabric with 17 g / m 2 ) rectangular holes of 10 mm x 300 mm were punched out. The illustrated cross-sectional view is taken along the line AA.
  • the parts of the nonwoven material web which are used for folding fixation are connected to the filter material web by means of weld lines.
  • the fleece stiffener which fixes the folds, is somewhat exaggerated in the cross-sectional view for reasons of better depictability.
  • the nonwoven material web lies flat on the filter material web.
  • the distances between the spot welds and the distances between the punched holes as well as the web widths of the filter material web as well as the perforated nonwoven material web and the length of the weld points are given in [mm].
  • the filter bags with surface folds were equipped with diffusers. Diffusers in vacuum cleaner filter bags are known in the art. Thus, the variants used according to the present invention in the EP 2 263 507 A1 described. present These consisted of 22 strips of 11 mm wide and 290 mm long.
  • the material used for the diffusers was LT75.
  • LT75 is a laminate with the following construction: Spunbond 17 g / m 2 / staple fiber layer 75 g / m 2 / Spunbond 17 g / m 2 .
  • the layers are ultrasonically laminated using the Ungricht U4026 lamination pattern.
  • the filter material LT75 can also be obtained from Eurofilters NV.
  • the filter bag receiving space for a flat bag without surface folds has on its insides a grid, which is intended to prevent the filter material conforms flat to the housing wall and can no longer be flowed through.
  • the filter bag receiving space for flat bags with surface folds is characterized by bow-shaped ribs which engage between the surface folds of the filter bag to assist in unfolding the folds. Apart from the bow-shaped ribs of the filter bag receiving space for both versions has the same dimensions.
  • Fig. 4 are schematic representations of the filter bag receiving space for a filter bag without surface folds shown.
  • Fig. 4 shows the filter bag receiving space in plan view. In this plan view, it has a shape of a square with a side length of 300 mm.
  • Fig. 4 also shows sectional views along the lines AA and BB.
  • the filter bag receiving space has a maximum height of 160 mm.
  • Fig. 7 are even more heights of in Fig. 4 indicated Filterlessnessraums indicated.
  • the shape describing the interior walls of the filter bag containment space is reminiscent of the shape of a pillow.
  • a flat bag without surface folds takes exactly a pillow shape during the suction operation. In this sense, it should also be understood that the filter bag receiving space has a shape that approximately corresponds to the shape of the envelope of the filled filter bag.
  • a grid is shown.
  • the grid has a wall distance of about 10 mm. This ensures a free circulation of the cleaned air in the filter bag accommodation space.
  • Fig. 5 Fig. 3 is a schematic representation of the filter bag receiving space for a surface-folding filter bag.
  • the inner dimensions of the filter bag accommodating space are the same as those of the filter bag accommodating space according to FIG Fig. 4 , In that regard, here too on the dimensions in Fig. 7 to get expelled.
  • a flat bag with fixed surface folds also assumes a pillow shape during suction, so that the filter bag receiving space has a shape which corresponds approximately to the shape of the envelope of the filled filter bag.
  • the filter bag receiving space (for flat bags without surface folding, see Fig. 4 ) has bow-shaped ribs of different height.
  • a device in the form of a small grid is further provided in the region in front of the outlet opening, which prevents the filter bag from being sucked into it due to the suction flow in the outlet opening.
  • Fig. 6 corresponds to the sectional view AA in Fig. 5 , wherein a filter bag with fixed surface folds in the form of dovetails is inserted.
  • the bow-shaped ribs intervene between the surface folds of the filter bag and thus contribute to the unfolding of the surface folds.
  • Fig. 6 shown schematically.
  • the filter bag wall is kept at a distance from the wall of the filter bag receiving space so as to ensure a flow through the entire filter surface of the filter bag.
  • the bow-shaped ribs have from outside to inside a height of 10 mm, 15 mm and 15 mm on the side facing away from the grid and from outside to inside on the grid side facing a height of 10 mm, from 20 mm and 35 mm.
  • Fig. 6 Furthermore, the wall of the filter bag receiving space can be seen.
  • the inserted filter bag has a plurality of surface folds, which are shown schematically as partially unfolded.
  • the air to be cleaned is sucked into the filter bag through the inlet opening (indicated by the arrow in the filter bag accommodation space) and sucked out via the outlet of the filter bag receiving space (indicated by the arrow from the filter bag receiving space).
  • the grille In front of the outlet opening is the grille, which prevents the filter bag from blocking the outlet opening.
  • Figure 3 is a cross-sectional view of the surface-finned filter bag used in accordance with the invention and a cross-sectional view of the same with dimensioning.
  • the engine / blower unit was the Domel KA 467.3.601-4 engine / blower unit (available from Domel, doo Otoki 21, 4228 elezniki, Slovenija).
  • Domel doo Otoki 21, 4228 elezniki, Slovenija.
  • a transformer motor-blower unit By controlling the mains voltage by means of a transformer motor-blower units were simulated with different average power consumption.
  • Fig. 10a For example, the air data for the motor-blower unit with an average power consumption of 340 W are shown.
  • Table 1 also shows the characteristics for further average power consumptions of this motor / blower unit, namely 425 W, 501 W, 665 W and 825 W.
  • specific air data are given for those in the hand-held vacuum cleaner according to the prior art Technology used engine-blower unit shown (see also Fig. 2a ).
  • Fig. 9a to Fig. 9g show the schematic structure of hand-vacuum cleaner devices, which have been found to be particularly advantageous from the optimization method according to the invention.
  • Fig. 9a Fig. 9b and Fig. 9c is in particular the filter bag receiving space (see also Fig. 4 to Fig. 7 ).
  • this filter bag receiving space is a connection piece, which is already in detail in Fig. 1 e is shown provided.
  • Fig. 1 c shown fittings "detail 03", “detail 04" and “detail 05" and the in Fig. 9f and Fig. 9g shown adapter pieces "detail 14" and "detail 15" the floor nozzle connected.
  • the upper part of the fitting according to Fig. 1e is the connection piece for the filter bag. At these, the holding plate and the inlet opening of the filter bag to be adjusted so that the filter bag can be placed airtight in the filter bag receiving space.
  • FIG. 9c results in the connection of the filter bag receiving space to the motor-blower unit on the in Fig. 9d and 9e shown in detail connector.
  • the motor-blower unit is installed in a silencer housing (see Fig. 9a and Fig. 9b ).
  • the construction of the soundproofing enclosure results Fig. 9b ,
  • the plate of the silencer housing, to which the motor-blower unit is attached, was made of aluminum with the thickness of 5 mm.
  • Aluminum plates of 2 mm thickness were used for the other panels of the soundproof enclosure.
  • Such a sound insulation unit is provided in all hand-vacuum cleaner devices.
  • the filter bag accommodation space and the sound insulation unit with integrated motor-blower unit are provided in a single housing with an exhaust opening into the environment. From such a housing was in the in Fig. 9a apart from the prototypes shown.
  • Fig. 1c . Fig. 1e . Fig. 9d to Fig. 9g Fig. 11 are technical drawings of a concrete configuration of the connection of the filter bag accommodating space to the floor nozzle and to the motor-blower unit used in the present invention. These technical drawings allow an immediate replica of the fittings. In addition to this embodiment, any other configurations are possible, as long as the inner dimensions of the air ducts are not changed.
  • Table 2 shows specific air data, partly derived from the Fig. 2b for the state of the art and out Fig. 10b according to the invention as described above.
  • this table gives specific air data for further embodiments of the invention for hand-held vacuum systems, particularly when using motor-blower units of other average power consumption.
  • Table 2 shows in the "Specific values" line the mean power consumption and maximum values for negative pressure, air flow, air flow and efficiency.
  • the air data are given, which adjust at the aperture 40, the standard suction on hard floor (see EN 60312, Chapter 5.1) and the standard sucking on the standard carpet type Wilton.
  • the air data of the last two lines are of particular interest to the daily use of the vacuum cleaning system.
  • the efficiency on hard floor for the hand-vacuum cleaning systems according to the invention is much higher than for the hand-vacuum cleaning systems of the prior art.
  • the electrical power used is converted much more efficiently into air power, which makes it possible to achieve the same air output with significantly lower electrical power consumption (for example, Wilton with the system according to the invention (filter bag with surface folding) with a mean electrical power consumption of 386 W achieves a similar air output as the Vortechnik system at 936 W).
  • Table 3 corresponds to Table 2, but with no empty filter bag but a 400 g DMT8 standard dust filled filter bag was inserted into the hand-vacuum cleaner.
  • the differences between the prior art and the manual vacuum cleaning systems according to the invention are even greater here than in the case of the empty filter bag.
  • the results obtained for the hand-held vacuum system mean that for a compact vacuum system consisting of the same components, the results for such a system will be even better than for a corresponding hand-held vacuum system, as the Compact Vacuum System is designed to have a shorter connection is provided between the floor nozzle and filter bag receiving space, so that the throttling effect, which can be further reduced by the connection between the floor nozzle and the filter bag receiving space.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP12002205.8A 2012-03-27 2012-03-27 Procédé d'optimisation d'un dispositif d'aspiration doté d'un aspirateur manuel, compact ou vertical et d'un sac filtrant Pending EP2644077A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP12002205.8A EP2644077A1 (fr) 2012-03-27 2012-03-27 Procédé d'optimisation d'un dispositif d'aspiration doté d'un aspirateur manuel, compact ou vertical et d'un sac filtrant
CN201380016912.1A CN104244791A (zh) 2012-03-27 2013-02-21 便携式、压缩或立式真空吸尘器及袋式过滤器的优化方法
AU2013242329A AU2013242329B2 (en) 2012-03-27 2013-02-21 Method for optimizing a device for vacuum cleaning with a hand-held, compact or upright vacuum cleaner and bag filter
RU2014133465A RU2620483C2 (ru) 2012-03-27 2013-02-21 Способ оптимизирования устройства для всасывания пыли, содержащего ручной, компактный или вертикальный пылесос и фильтровальный мешок
PCT/EP2013/053463 WO2013143790A2 (fr) 2012-03-27 2013-02-21 Procédé d'optimisation d'un système d'aspiration de poussières comprenant un appareil aspirateur à main, compact ou -balai et sac-filtre
US14/386,690 US10052003B2 (en) 2012-03-27 2013-02-21 Method for optimizing a device for vacuum cleaning with a hand-held, compact, or upright vacuum cleaner and bag filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12002205.8A EP2644077A1 (fr) 2012-03-27 2012-03-27 Procédé d'optimisation d'un dispositif d'aspiration doté d'un aspirateur manuel, compact ou vertical et d'un sac filtrant

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EP2644077A1 true EP2644077A1 (fr) 2013-10-02

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Country Status (6)

Country Link
US (1) US10052003B2 (fr)
EP (1) EP2644077A1 (fr)
CN (1) CN104244791A (fr)
AU (1) AU2013242329B2 (fr)
RU (1) RU2620483C2 (fr)
WO (1) WO2013143790A2 (fr)

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* Cited by examiner, † Cited by third party
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EP2926705A1 (fr) * 2014-04-04 2015-10-07 Eurofilters Holding N.V. Dispositif destiné à aspirer à l'aide d'un aspirateur de chaudière
CN108606720A (zh) * 2016-12-13 2018-10-02 苏州宝时得电动工具有限公司 集尘装置以及具有该集尘装置的吹吸机

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AU2013242329A1 (en) 2014-09-18
US20150067980A1 (en) 2015-03-12
RU2014133465A (ru) 2016-05-20
AU2013242329B2 (en) 2016-06-09
CN104244791A (zh) 2014-12-24
US10052003B2 (en) 2018-08-21
RU2620483C2 (ru) 2017-05-25
WO2013143790A2 (fr) 2013-10-03

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