EP3072430A1 - Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant - Google Patents

Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant Download PDF

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Publication number
EP3072430A1
EP3072430A1 EP16165922.2A EP16165922A EP3072430A1 EP 3072430 A1 EP3072430 A1 EP 3072430A1 EP 16165922 A EP16165922 A EP 16165922A EP 3072430 A1 EP3072430 A1 EP 3072430A1
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EP
European Patent Office
Prior art keywords
filter bag
air flow
vacuum cleaner
motor
kpa
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
EP16165922.2A
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German (de)
English (en)
Other versions
EP3072430B1 (fr
Inventor
Ralf Sauer
Jan Schultink
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 Holding NV
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Eurofilters Holding NV
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
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Application filed by Eurofilters Holding NV filed Critical Eurofilters Holding NV
Priority to EP16165922.2A priority Critical patent/EP3072430B1/fr
Priority to PL16165922T priority patent/PL3072430T3/pl
Priority to DK16165922.2T priority patent/DK3072430T3/en
Priority to ES16165922.2T priority patent/ES2627208T3/es
Publication of EP3072430A1 publication Critical patent/EP3072430A1/fr
Application granted granted Critical
Publication of EP3072430B1 publication Critical patent/EP3072430B1/fr
Revoked 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
    • 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
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2821—Pressure, vacuum level or airflow
    • 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
    • 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
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays

Definitions

  • the invention relates to a device for vacuuming with a vacuum cleaner and a filter bag made of nonwoven fabric.
  • EN 60312 refers to the standard in the version EN 60312: 1998 + A1: 2000 + A2: 2004.
  • EN 60335 refers to the standard in the version EN 60335-2-2: 2010.
  • the air data of a vacuum cleaner are determined in accordance with EN 60312 Section 2.8.
  • the measuring device B is used in accordance with section 5.2.8. If motor-blower units are measured solo, ie without a vacuum cleaner housing, the measuring device B is also used.
  • Nominal electrical power consumption of a vacuum cleaner The power consumption of a vacuum cleaner is determined in accordance with EN 60335. According to EN 60335 and EN 60312, the input power is referred to as P 1 . Nominal power consumption is the arithmetic mean of the maximum recording power and the minimum recording power according to EN 60335. The maximum power consumption at the highest air flow (open airflow) and the minimum power consumption at an air flow of 0 l / s (sealed suction) are measured. Electromotive driven attachments, such as brushes and the like, are not taken into account in the determination of the recording power.
  • Air flow The air flow is determined according to EN 60312 with the measuring chamber according to version B. In the prior art, this air flow is often referred to as volume flow or suction air flow.
  • Air flow waste constant air flow: The air flow waste is determined in the scope of suitability for use of vacuum cleaners in accordance with EN 60312 (section 2.9 of this standard) with the measuring chamber version B. Deviating from the standard, the decrease in air flow is checked by absorbing 400 g of DMT8 test dust in 50 g portions, provided that the maximum usable volume of the filter bag (see section 2.7 of this standard) is greater than 2 l. The three conditions that should lead to the termination of the test in accordance with section 2.9.1.3 of the standard are not taken into account. For volumes less than 2 liters, proceed as described in section 2.9.1.3. This method of measuring the airflow drop modified in this way in comparison with standard EN 60312 is referred to in the present specification and the patent claims as "analogous to EN 60312".
  • the increase in power of the blower motor is understood to mean an increase in the power consumption [W].
  • the power setting takes place via a phase control.
  • the SR motor (see below) regulates the control voltage of the motor.
  • An SR motor is a switched reluctance motor characterized by a simple and robust design and high possible speeds (> 100,000 rpm). The torque is generated via the reluctance force.
  • filter bags Under a flat bag in the sense of the present invention filter bags are understood, the filter bag wall of two individual layers of filter material with the same surface is formed such that the two individual layers are interconnected only at their peripheral edges (the term same area does not exclude of course that the two individual layers differ from one another in that one of the layers has an inlet opening).
  • connection of the individual layers can be realized by a weld or adhesive seam along the entire circumference of the two individual layers; but it can also be formed by a single layer of filter material is folded around one of its symmetry axes and the remaining open peripheral edges of the resulting two partial layers are welded or glued (so-called tubular bag). With such a production three welding or gluing seams are therefore 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.
  • Flat bags in the sense of the present invention may also have so-called gussets. These gussets 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 ).
  • a filter bag whose filter bag wall has surface folds is known per se from the prior art, for example from the European patent application 10163463.2 (See there in particular Fig. 10a and Fig. 10b and Fig. 11a and Fig. 11 b). If the filter bag wall comprises several surface folds, then this material is also referred to as a pleated filter material. Such pleated filter bag walls are in the European patent application 10002964.4 shown.
  • Fig. 1 and Fig. 2 show a filter bag in cross-section with a wall, each having two surface folds. By such surface wrinkles, the filter surface of the filter bag is increased, resulting in a higher dust holding capacity of the filter bag with higher separation efficiency and longer life results (each opposite a filter bag with the same outer dimensions and no surface wrinkles).
  • Fig. 1 is a filter bag 1 with a filter bag wall 10, which has two surface folds 11 in the form of so-called dovetails shown.
  • the filter bag is shown here in cross section through the filter bag center.
  • the longitudinal axes of the surface wrinkles thus run in a plane which in turn is perpendicular to the plane of the drawing, and the surface wrinkles go at their longitudinal ends in the plane parallel to the drawing plane and lying before and behind the plane of the weld seams of the filter bag.
  • the surface wrinkles can develop most in their midst.
  • the filter bag is shown here in a state in which the surface wrinkles are already unfolded somewhat.
  • Fig. 2 is a filter bag 2 with a filter bag wall 20, which has two surface folds 21 in the form of so-called triangular folds shown.
  • the filter bag is shown here in cross section through the filter bag center.
  • the longitudinal axes of the surface wrinkles thus run in a plane which in turn is perpendicular to the plane of the drawing, and the surface wrinkles go at their longitudinal ends in the plane parallel to the drawing plane and lying before and behind the plane of the weld seams of the filter bag.
  • the filter bag is also shown here in a state in which the surface wrinkles are already unfolded.
  • surface wrinkles are also possible surface wrinkles with other shapes. That the surface folds in the versions after Fig. 1 and Fig. 2 The surface folds are perpendicular to a bag edge is not to be understood as a limitation. Of course, the surface wrinkles may also be at an angle to the edges of the bag.
  • Suction power is the product of negative pressure [kPa] and air flow [I / s]. According to EN 60312, the suction power is referred to as P 2 .
  • Efficiency The efficiency of a vacuum cleaner or a motor-blower unit is determined according to EN 60312 section 2.8.3.
  • the customer requirements for the hygiene of a device for vacuuming refer not only to the lowest possible dust emissions of the devices but also to the hygienic disposal of sucked dust.
  • vacuum cleaners without filter bags and vacuum cleaners with filter bags can be distinguished. These devices each have typical advantages and disadvantages.
  • Vacuum cleaners with filter bags are characterized by a high airflow. As the loading of the filter bag increases, however, the airflow decreases more or less. Until about the year 2000 filter bags made of paper were used in the first place. Such paper filter bags show a reduction in the maximum air flow with partially filled dust container analogous to EN 60312 an air flow drop of about 80% (or 60% when using a réelletissues). Thereafter, filter bags began to slowly enforce with nonwoven layers. First, filter bags were used with fleece layers of low dust storage capacity (SMS filter bag). By introducing filter bags Nonwovens with a capacity position, this decrease in air flow could be significantly reduced (see EP 0 960 645 ).
  • SMS filter bag low dust storage capacity
  • Such filter bags show when checking the reduction of the maximum air flow with partially filled dust container analogous to EN 60312 an airflow drop of about 30%. Further improvements have been made by prefiltering loose fibers in the bag ( DE 10 2007 060 747 . DE 20 2007 010 692 and WO 2005/060807 ) or a pre-separation through a bag in the bag ( WO 2010/000453 . DE 20 2009 002 970 U1 and DE 20 2006 016 303 U1 ) reached. Flow deflections or flow distributions in the filter bag are in the EP 1 915 938 . DE 20 2008 016 300 . DE 20 2008 007 717 U1 (Dust-storing insert), DE 20 2006 019 108 U1 .
  • Bagless vacuum cleaners - in particular cyclone vacuum cleaners - are distinguished by the fact that the air flow remains substantially constant when the dust collecting container is loaded with dust.
  • the constant air flow of a cyclone vacuum cleaner is at first glance an advantage compared to vacuum cleaners with filter bags, which clog more or less with increasing loading of the filter bag, whereby the air flow is reduced accordingly.
  • this is paid for by a very high nominal electrical power consumption of the cyclonic vacuum cleaner. This high energy input is required because of the high losses that the separation principle entails, namely the loss of maintaining the high velocity of rotation of the dust-laden air in the cyclone separator.
  • Fig. 3 shows the reduction of the air flow as a function of the sucked amount of DMT 8 dust analogous to EN 60312 in known devices with filter bags (for example Miele S5210 with a nominal electrical power of 2200 W and various filter bags made of nonwoven fabric) and without filter bag (Dyson DC23 monty with a nominal electrical power of 1400 W).
  • the vacuum cleaner device has a control device by which the vacuum cleaner is controlled so that a substantially constant air flow is realized.
  • filter bags made of paper are used. Due to the high tendency of filter bags to become clogged with paper (approx. 80% air flow waste with 400 g DMT8; US 4,021,879 not yet used), however, a very large control range for the nominal electrical power consumption must be provided. Although theoretically a constant air flow can be realized, this is very low. For this reason, this concept was no longer pursued and thus could not be translated into a successful product in the market.
  • the present invention seeks to provide a device for vacuuming with a vacuum cleaner and filter bags, in which the nominal electrical power consumption is significantly reduced, with the cleaning performance compared to devices for vacuuming, as they are today significantly higher recording power are available, may not deteriorate significantly.
  • a device for vacuuming with the features of claim 1, that is by a device for vacuuming with a vacuum cleaner and a filter bag, in which the vacuum cleaner has a motor-fan unit, which is designed such that the vacuum cleaner with inserted filter bag
  • At Aperture 0 a negative pressure between 30 kPa and 6 kPa, preferably a negative pressure between 20 kPa and 8 kPa, and particularly preferably a negative pressure between 15 kPa and 8 kPa, produced, and at Aperture 8 (40 mm) an air flow between 25 l / s and 49 l / s, preferably produces an air flow of between 30 l / s and 45 l / s, and more preferably an air flow of between 35 l / s and 45 l / s, and in which the filter bag is a disposable nonwoven filter bag
  • the filter bag is a disposable nonwoven filter bag
  • This particular characteristic of the motor-blower unit differs from the characteristic conventionally found in apparatuses for vacuum-cleaning motor-blower units in that the latter produce a much higher vacuum and a much lower maximum airflow.
  • motor-blower units are particularly energy-efficient in use, and together with the disposable filter bags made of non-woven fabric, which reduces the air flow, i. an airflow drop of less than 15%, are comparable in their cleaning performance with vacuuming devices available today with significantly higher input power.
  • the vacuum cleaner device at aperture 8 can have an air output of more than 250 W, preferably more than 300 W, particularly preferably more than 350 W. sets If the invention is so, a fully satisfactory suction operation can be ensured via the complete filling of the filter bag.
  • the vacuum cleaner device has a nominal electrical input power of less than 1200 W, preferably less than 1100 W, particularly preferably less than 900 W.
  • Such recording services fully meet the future energy policy requirements.
  • the motor-blower unit at aperture 8 has an efficiency according to EN 60335 of at least 20%, preferably of at least 25% and particularly preferably of at least 30%.
  • EN 60335 of at least 20%, preferably of at least 25% and particularly preferably of at least 30%.
  • the device may have a control device that controls the vacuum cleaner device so that the air flow at a loading of the filter bag with DMT8 test dust analogous to EN 60312 substantially constant at a value of at least 34 l / s, preferably is kept substantially constant at a value of at least 37 l / s, more preferably substantially constant to a value of at least 40 l / s.
  • the device for vacuuming comprises an electronic control device, which is designed such that it regulates the electrical power consumption of the motor-blower unit.
  • the device is then preferably designed such that the increase in power consumption of the motor-blower unit necessary for maintaining the substantially constant air flow when loading the filter bag with DMT8 dust in analogy with EN 60312 does not exceed 35%, preferably not more than 20%. and more preferably not more than 15%, based on the power consumption of the motor-blower unit with empty filter bag is.
  • devices for vacuuming can be realized with a constant air flow with a suction behavior, as it is known from today's non-adjustable devices, the future energy policy requirements can be easily met.
  • a motor-blower unit which has a reluctance motor, preferably a switched reluctance motor.
  • a reluctance motor preferably a switched reluctance motor.
  • Such motors are characterized in particular by the fact that they are robust and durable.
  • a device in which the control device has a throttle valve, which regulates the air flow so that it is substantially constant.
  • the negative pressure downstream of the filter bag, the negative pressure upstream of the filter bag or the flow velocity measured at any desired point in the flow path can be used as a controlled variable in the two alternative refinements of the control device. Also possible are any combinations of these three sizes.
  • the filter bag can 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. Because in contrast to the paper filter material used in filter bags made of paper, nonwoven filter material is very difficult because of the high resilience permanently fold, so that the production of more complex bag shapes, such as from block bottom bags or other bottom bag forms, is very complicated and expensive.
  • vacuum cleaner bags with pleated filter material or with surface wrinkles.
  • Such vacuum cleaner bags are characterized by a particularly low air flow waste.
  • the vacuum cleaner device may have a filter bag change indication, which indicates when during the suction operation, the air flow for a predetermined time falls below the substantially constant value.
  • the sensors that are already provided for the measurement of the controlled variables can be used for this purpose.
  • the filter bag has a volume measured in accordance with EN 60312 in a range from 1.5 l to 8 l.
  • Such filter bags are used primarily in vacuum cleaners, which are designed as a vacuum cleaner, as a hand vacuum cleaner, as Kesselsauger or Upright for household use.
  • Fig. 5 the characteristic of the motor-blower unit according to an embodiment of the invention is shown. This is characterized by comparatively low maximum negative pressure at aperture 0 and a high volume flow at aperture 9 (50 mm). In particular, a negative pressure of 14.3 kPa is achieved at aperture 0. Aperture 9 (50 mm) results in an air flow of 86.5 dm 3 / s. The characteristic is therefore very flat. At maximum air flow, the engine consumes 1240 W of power. The air output (product of negative pressure and air flow) is a maximum of 498 W at aperture 7 (30 mm).
  • Fig. 4 shows the characteristic data for a motor-blower unit as used in the prior art in devices for vacuuming.
  • the motor-blower unit reaches a negative pressure of 35.8 kPa, at aperture 9 (50 mm) results in an air flow of 53.5 dm 3 / s.
  • the fan characteristic is therefore very steep.
  • the engine consumes 1900 W of power.
  • the air output reaches 614 W.
  • motor-blower unit can be realized in combination with a filter bag with surface wrinkles and adapted to the filter bag space with a corresponding automatic control of the air flow, a vacuum cleaner, which achieves a high constant air flow at a power input of less than 1000 W.
  • Fig. 6 shows the results for two embodiments according to the present invention. Both have in common that a very high constant air flow is achieved with low electrical input power.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
EP16165922.2A 2012-03-22 2012-03-22 Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant Revoked EP3072430B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP16165922.2A EP3072430B1 (fr) 2012-03-22 2012-03-22 Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant
PL16165922T PL3072430T3 (pl) 2012-03-22 2012-03-22 Urządzenie do odkurzania z odkurzaczem i workiem filtracyjnym
DK16165922.2T DK3072430T3 (en) 2012-03-22 2012-03-22 DUST CLEANING DEVICE WITH A DUST CLEANER AND A FILTER BAG
ES16165922.2T ES2627208T3 (es) 2012-03-22 2012-03-22 Dispositivo para aspirar con un aparato aspirador y bolsa de filtro

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12002041.7A EP2641523A1 (fr) 2012-03-22 2012-03-22 Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant
EP16165922.2A EP3072430B1 (fr) 2012-03-22 2012-03-22 Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP12002041.7A Division EP2641523A1 (fr) 2012-03-22 2012-03-22 Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant

Publications (2)

Publication Number Publication Date
EP3072430A1 true EP3072430A1 (fr) 2016-09-28
EP3072430B1 EP3072430B1 (fr) 2017-05-10

Family

ID=47747618

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12002041.7A Withdrawn EP2641523A1 (fr) 2012-03-22 2012-03-22 Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant
EP16165922.2A Revoked EP3072430B1 (fr) 2012-03-22 2012-03-22 Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12002041.7A Withdrawn EP2641523A1 (fr) 2012-03-22 2012-03-22 Dispositif destiné à aspirer à l'aide d'un aspirateur et d'un sac filtrant

Country Status (9)

Country Link
US (1) US9402520B2 (fr)
EP (2) EP2641523A1 (fr)
CN (1) CN104203060B (fr)
AU (1) AU2013234662B2 (fr)
DK (1) DK3072430T3 (fr)
ES (1) ES2627208T3 (fr)
PL (1) PL3072430T3 (fr)
RU (1) RU2589472C2 (fr)
WO (1) WO2013139552A1 (fr)

Families Citing this family (5)

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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
EP2926706B1 (fr) * 2014-04-04 2024-06-05 Eurofilters Holding N.V. Dispositif d'aspiration de poussière
JP6437897B2 (ja) * 2015-08-10 2018-12-12 アイリスオーヤマ株式会社 掃除機
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
US10183250B2 (en) * 2016-12-19 2019-01-22 San Ford Machinery Co., Ltd. Dust collector capable of recollecting particulate dust in the filter barrel

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CN104203060A (zh) 2014-12-10
PL3072430T3 (pl) 2017-10-31
RU2014132942A (ru) 2016-05-20
AU2013234662B2 (en) 2015-08-20
EP2641523A1 (fr) 2013-09-25
RU2589472C2 (ru) 2016-07-10
EP3072430B1 (fr) 2017-05-10
US20150026918A1 (en) 2015-01-29
WO2013139552A1 (fr) 2013-09-26
CN104203060B (zh) 2017-07-07
AU2013234662A1 (en) 2014-08-28
US9402520B2 (en) 2016-08-02
DK3072430T3 (en) 2017-07-24
ES2627208T3 (es) 2017-07-27

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