EP2612582A1 - Aspirateur et procédé destiné au fonctionnement d'un aspirateur - Google Patents

Aspirateur et procédé destiné au fonctionnement d'un aspirateur Download PDF

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Publication number
EP2612582A1
EP2612582A1 EP12401249.3A EP12401249A EP2612582A1 EP 2612582 A1 EP2612582 A1 EP 2612582A1 EP 12401249 A EP12401249 A EP 12401249A EP 2612582 A1 EP2612582 A1 EP 2612582A1
Authority
EP
European Patent Office
Prior art keywords
suction
vacuum cleaner
filter
air flow
fan
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
EP12401249.3A
Other languages
German (de)
English (en)
Other versions
EP2612582B1 (fr
Inventor
Walter Assmann
David Buhl
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2612582A1 publication Critical patent/EP2612582A1/fr
Application granted granted Critical
Publication of EP2612582B1 publication Critical patent/EP2612582B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L9/20—Means for cleaning filters
    • 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
    • A47L5/24—Hand-supported suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—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
    • 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
    • A47L9/2884—Details of arrangements of batteries or their installation
    • 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
    • A47L9/32—Handles
    • A47L9/322—Handles for hand-supported suction cleaners

Definitions

  • the invention relates to a vacuum cleaner with a designed as an axial fan suction fan and a dust chamber in which a filter is arranged, by means of a reversal of rotation of the suction fan a direction of a suction fan caused by the air flow through the filter is reversible. It further relates to a method of operating a vacuum cleaner.
  • Such vacuum cleaners are known.
  • a dust container for a vacuum cleaner from which the dust is blown by reversing the direction of rotation of an axial blower in a collecting container. Prior to this emptying procedure, the user must couple the dust container to the collection container and activate the purging of the dust from the dust container.
  • Vacuum cleaners are also known in which the user manually shakes the filter by means of a mechanism for cleaning.
  • a disadvantage of these vacuum cleaners is that this only a very small filter cleaning can be achieved.
  • the user must actively activate the filter cleaning. The mechanics cause additional costs and space required.
  • Even devices that do not have such a mechanism are disadvantageous because the user has to do the filter cleaning manually. This is often very unhygienic.
  • the user may be exposed to respiratory loads due to the swirling up of fine dust. In order to be able to suck for a sufficiently long time without suction loss, either a relatively large filter surface is required, or the user must clean the filter frequently.
  • the invention is therefore an object of the invention to provide a vacuum cleaner, which is inexpensive and in which the filter can be cleaned in a hygienic manner.
  • the advantage of the invention is that a fully automatic hygienic filter cleaning is made possible at the end of each suction application.
  • Such a trained vacuum cleaner is also cost-neutral, since no additional components must be used.
  • the regular filter cleaning allows the use of filters with a relatively small filter area, which can save costs.
  • a predetermined or predeterminable time value for establishing a time interval between an end of the suction process and the rotation direction reversal subsequently automatically effected.
  • An impeller of the axial fan can be braked after switching off the vacuum cleaner or unrestrained until it stops. Thereafter, for example, a break, e.g. of two seconds, follow. The duration of the break is through the o.g. Time value determined.
  • the axial fan, driven by the control electronics automatically run in the opposite direction.
  • the time value may be in the drive electronics e.g. implemented in hardware, e.g. as the time constant of an RC element, or in software, e.g. as the content of a corresponding memory cell.
  • a predetermined or predeterminable further time value is provided for determining a duration of the reversal of the direction of rotation. This determines how long the filter will be cleaned.
  • the duration of reversal of the direction of rotation subsequent to the suction process can generally be kept relatively short since, if the filter is automatically cleaned after each suction, only little dirt adheres to it.
  • a possible time value for the duration of the reversal of the direction of rotation is, for example, one or two seconds, ie a short speed or flow pulse, but also any other time value is possible.
  • This time value can also be implemented in hardware, for example as described above, eg as a time constant of an RC element, or in software, eg as the content of a corresponding memory cell.
  • a speed of the suction fan in the reverse air flow direction may be lower than during the suction process. Even a weak blast air flow is usually sufficient to effectively clean the filter. At the same time, energy is saved because the axial fan does not have to be operated at high power.
  • the vacuum cleaner comprises a suction passage downstream of a suction air flow in front of the dust chamber and a valve opening in a suction air flow blocking the suction passage in a blast air flow
  • the dust dissolving from the filter through the blown air flow does not exceed the suction air flow
  • Suction channel is transported from the dust chamber. This prevents the user from standing in a cloud of dust when cleaning the filter. Instead, the dust released from the filter remains in the dust space, and may be stopped as needed after completion of the cleaning operation of the filter, e.g. be disposed of by manually draining / dumping the dust space by the user in an uncomplicated manner at a suitable location.
  • a motor driving the suction fan is designed as a brushless permanent magnet motor.
  • a brushless permanent magnet motor This allows a good engine life with a speed of at least 70,000 revolutions per minute. Such a speed is advantageous for an axial fan to achieve good fan efficiencies.
  • brushless permanent magnet motors are also energy efficient. More preferably, the brushless permanent magnet motor can be provided in internal rotor design, whereby the demands placed on him are met particularly well.
  • the vacuum cleaner is especially suitable for use as a table vacuum cleaner. Additionally or alternatively, for the vacuum cleaner is a version as a vacuum cleaner into consideration.
  • This is in a method for operating a vacuum cleaner with one or more of the o.g. Provision is made for automatically reversing a direction of the air flow through the filter following a suction process by means of an activation of the suction fan caused by the control electronics. Following a suction process means after completion of the suction process by the user.
  • FIG. 1 schematically shows a simplified vacuum cleaner 10 with a suction fan 12, which is designed as an axial fan, consisting of a motor 14 and a blower unit 16 with an axial impeller 18.
  • the suction fan 12 causes during a suction process 20 (FIG. FIG. 2 ) an air flow 22 (shown simplified by an arrow) through a suction port 24, a dust chamber 26 and a filter 28, such as a fine dust filter, which exits at a rear of the vacuum cleaner 10 through blow-out slots (not shown) from the vacuum cleaner 10 again.
  • this air flow 22 is also referred to as suction air flow.
  • the direction of the air flow through the filter 28 is automatically reversed following the suction process. Following the suction is called after completion of the suction by the user, ie after switching off the Suction fan 12 via a main switch 52.
  • the air flow in the reverse direction to the suction air flow (opposite to the arrow) is hereinafter sometimes referred to as Blas Kunststoffstrom.
  • a control electronics 36 is arranged, which converts the direct current from the battery 34 into a current required for driving the motor 14, in particular three-phase current.
  • the control electronics 36 for example, a correspondingly suitable microprocessor (not shown).
  • the speed and direction of rotation of the motor 14 can be adjusted via the voltage and the rotational frequency.
  • the direction of rotation of the motor 14 determines the direction of rotation of the axial impeller 18 of the suction fan 12 and thus the direction of the air flow through the filter 28.
  • a rotational speed of the motor 14 during the suction process 20 For example, a rotational speed of the motor 14 at opposite to suction 20 rotational direction of the motor 14 and the Axiallaufrads 18, a time value corresponding to a duration during which the suction fan 12 in the suction opposite direction is operated, and a time value corresponding to a period of time which is in the opposite direction between one end of the suction process and a control of the suction fan 12, as set values in the control electronics 36, eg in a memory (not shown) of the control electronics, be kept available retrievable.
  • the control electronics 36 allows a cost-neutral processor-controlled reversal without additional components such as relays or the like.
  • at least the above-stated time values may also be used in hardware, e.g. be implemented as the time constant of an RC element.
  • the motor 14 is a brushless permanent magnet motor. This allows operation at a speed of 70,000 or more revolutions per minute with acceptable life. A speed of 70,000 or more revolutions per minute is advantageous in order to achieve a suitable blower efficiency.
  • the brushless permanent magnet motor can also be designed with an internal rotor, thus fulfilling its requirements particularly well.
  • the vacuum cleaner 10 may additionally include a valve (not shown). This is e.g. arranged in a region between the suction opening 24 and the filter 28, that is, for example, in the dust chamber 26 or in a suction channel, which is located downstream of the suction air flow in front of the dust chamber 26.
  • the valve blocks the suction channel or the suction opening 24 in the case of a blast air flow, so that fine dust particles 32, which detach from the filter 28, or else dust and dirt particles 30 which are located in the dust chamber 26, are not conveyed out through the suction opening 24 ,
  • FIG. 2 shows a time course 38, in which on the abscissa the time in seconds and on the ordinate the fan speed per minute is plotted.
  • Positive blower speeds represent a suction process 20.
  • the direction of rotation of the suction fan 12 is reversed, by which a direction of the air flow 22 caused by the suction fan 12 is reversed. That is, the suction air flow effected during the suction process 20 becomes subsequent to the suction process 20 automatically reversed into a blast air stream. This exposes the filter 28 ( FIG. 1 ) a cleaning automatically.
  • the axial impeller 18 rotates at 70,000 revolutions per minute during the entire suction process 20 after approximately two seconds.
  • the time interval between the end of the suction process 20 and that subsequently effected automatically Direction of rotation reversal is determined by a given or predefinable time value.
  • the axial impeller 18 runs depending on the design of the control electronics 36 (FIG. FIG. 1 ) either braked or unrestrained to a stop. This time is to be regarded as the end of the suction process 20.
  • a pause 40 from here for about two seconds is given, at which the fan speed is 0 revolutions per minute.
  • the suction fan 12 is then driven by the microprocessor of the control electronics 36 for a predetermined or predetermined further time value of about one second for a filter cleaning operation 42, represented by negative fan speeds, in the opposite direction, ie the axial impeller 18 rotates in the opposite direction, so that no air through the dust chamber 26 ( FIG. 1 ) is sucked, but a blast of air is blown from behind through the blow-out in the reverse direction through the filter 28.
  • the filter 28 is separated from the dirt and dust particles accumulated during the suction process 20, in particular fine dust particles 32 (FIG. FIG. 1 ), so that the full suction power is available for the next suction process.
  • a short speed or flow impulse is required, which only takes up little of the battery capacity of the vacuum cleaner 10.
  • the speed during the filter cleaning process 42 with, for example, about 50,000 revolutions per minute lower than during the suction process 20th
  • the dust and dirt particles, in particular fine dust particles 32, which are dissolved by the filter 28 accumulate in the dust space 26 and can be hygienically removed therefrom, if necessary, e.g. by emptying into a corresponding container.
  • FIG. 3 1 shows a schematically simplified flowchart for explaining a method 44 for operating the vacuum cleaner 10.
  • a predetermined or predeterminable time value for example, retrieved from the memory of the control electronics 36 and processed in a microprocessor.
  • the suction fan 12 (FIG. FIG. 1 ) not driven. This time value corresponds to the duration of a break 40 ( FIG. 2 ) between the suction process 20 and the filter cleaning process 42 ( FIG. 2 ).
  • a further predetermined or predeterminable time value is retrieved from a memory and, after the break 40, the suction fan 12 is triggered for this further time value, ie for a duration corresponding to this time value, in the direction opposite to the suction process 20.
  • This further time value corresponds to the duration of the filter cleaning process 42.
  • the suction fan 12 is stopped by the control electronics 36 until the vacuum cleaner 10 is turned on again by a user.
  • the invention can be briefly illustrated as follows: It is a vacuum cleaner 10 with a designed as an axial fan suction fan 12 and a dust chamber 26, in which a filter 28 is arranged, wherein by means of a reversal of rotation of the suction fan 12, a direction caused by the suction fan 12 Air flow 22 through the filter 28 is reversible, indicated that includes a control electronics 36 for automatically reversing the direction of the air flow 22 through the filter 28 following a suction 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
EP20120401249 2012-01-04 2012-12-13 Aspirateur et procédé destiné au fonctionnement d'un aspirateur Active EP2612582B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210100046 DE102012100046A1 (de) 2012-01-04 2012-01-04 Staubsauger und Verfahren zum Betrieb eines Staubsaugers

Publications (2)

Publication Number Publication Date
EP2612582A1 true EP2612582A1 (fr) 2013-07-10
EP2612582B1 EP2612582B1 (fr) 2014-07-30

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EP20120401249 Active EP2612582B1 (fr) 2012-01-04 2012-12-13 Aspirateur et procédé destiné au fonctionnement d'un aspirateur

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DE (1) DE102012100046A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103817094A (zh) * 2014-02-21 2014-05-28 慈溪思达电子科技有限公司 一种空调内机的真空清洁装置
CN108024674A (zh) * 2015-09-17 2018-05-11 戴森技术有限公司 真空吸尘器
CN113842081A (zh) * 2021-09-23 2021-12-28 台山市冠鑫机械有限公司 一种吸尘器及控制方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015104894B4 (de) * 2015-03-30 2022-10-27 Vorwerk & Co. Interholding Gmbh Elektrisch betriebener Staubsauger
DE102015104896A1 (de) * 2015-03-30 2016-10-06 Vorwerk & Co. Interholding Gmbh Filter für einen Staubsauger
GB201700637D0 (en) 2017-01-13 2017-03-01 Black & Decker Inc Dust collection box
KR102518732B1 (ko) * 2018-11-19 2023-04-05 현대자동차주식회사 공조장치를 이용한 청소기
DE102022124491A1 (de) 2022-09-23 2024-03-28 Miele & Cie. Kg Bodenpflegegerät mit verbesserter Filterreinigung
US20240138639A1 (en) * 2022-11-02 2024-05-02 Black & Decker, Inc. Vacuum cleaning device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB717578A (en) * 1951-05-30 1954-10-27 Alfred France Improvements in and relating to suction cleaners
WO1997020492A1 (fr) * 1995-12-04 1997-06-12 Emaco Limited Aspirateur
WO2000054644A1 (fr) 1999-03-15 2000-09-21 BSH Bosch und Siemens Hausgeräte GmbH Procede permettant de vider un contenant fixe a ou dans un aspirateur ainsi que contenant, aspirateur pourvu du contenant et systeme collecteur de poussiere destine a la mise en oeuvre du procede
EP1380246A2 (fr) * 2002-07-08 2004-01-14 Alfred Kärcher GmbH & Co. KG Aspirateur utilisé à des fins de nettoyage
WO2004100746A2 (fr) * 2003-05-15 2004-11-25 BSH Bosch und Siemens Hausgeräte GmbH Aspirateur comprenant un dispositif de commande destine a un dispositif de nettoyage pour filtre ceramique
EP1977672A1 (fr) * 2007-04-04 2008-10-08 Black & Decker, Inc. Mécanismes pour le nettoyage de filtres
DE102008011723A1 (de) * 2008-02-28 2009-09-03 Vorwerk & Co. Interholding Gmbh Staubsauger, insbesondere Haushalts-Staubsauger, sowie Verfahren zum Betreiben eines Staubsaugers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017347B (de) * 1954-11-27 1957-10-10 Siemens Ag Staubsauger mit Einrichtung zum Reinigen des Filters mittels eines Gegenluftstromes
DE20101755U1 (de) * 2001-02-01 2001-08-02 Wieting, Jörg Johann, 26340 Zetel Batteriebetriebenes Gerät zur Entfernung von Spinnennetzen in Handtaschenlampengröße
GB2468299B (en) * 2009-03-03 2012-06-20 Dyson Technology Ltd Noise reduction arrangement for a cleaning appliance.
DE102010017213A1 (de) * 2010-06-02 2011-12-08 Vorwerk & Co. Interholding Gmbh Entleerungsstation für einen Schmutzsammelbehälter eines Reinigungsgerätes sowie Verfahren hierzu

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB717578A (en) * 1951-05-30 1954-10-27 Alfred France Improvements in and relating to suction cleaners
WO1997020492A1 (fr) * 1995-12-04 1997-06-12 Emaco Limited Aspirateur
WO2000054644A1 (fr) 1999-03-15 2000-09-21 BSH Bosch und Siemens Hausgeräte GmbH Procede permettant de vider un contenant fixe a ou dans un aspirateur ainsi que contenant, aspirateur pourvu du contenant et systeme collecteur de poussiere destine a la mise en oeuvre du procede
EP1380246A2 (fr) * 2002-07-08 2004-01-14 Alfred Kärcher GmbH & Co. KG Aspirateur utilisé à des fins de nettoyage
WO2004100746A2 (fr) * 2003-05-15 2004-11-25 BSH Bosch und Siemens Hausgeräte GmbH Aspirateur comprenant un dispositif de commande destine a un dispositif de nettoyage pour filtre ceramique
EP1977672A1 (fr) * 2007-04-04 2008-10-08 Black & Decker, Inc. Mécanismes pour le nettoyage de filtres
DE102008011723A1 (de) * 2008-02-28 2009-09-03 Vorwerk & Co. Interholding Gmbh Staubsauger, insbesondere Haushalts-Staubsauger, sowie Verfahren zum Betreiben eines Staubsaugers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103817094A (zh) * 2014-02-21 2014-05-28 慈溪思达电子科技有限公司 一种空调内机的真空清洁装置
CN108024674A (zh) * 2015-09-17 2018-05-11 戴森技术有限公司 真空吸尘器
CN113842081A (zh) * 2021-09-23 2021-12-28 台山市冠鑫机械有限公司 一种吸尘器及控制方法

Also Published As

Publication number Publication date
DE102012100046A1 (de) 2013-07-04
EP2612582B1 (fr) 2014-07-30

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