EP1827194B1 - Verfahren zum erfassen der vor- und rückbewegung eines staubsaugers sowie staubsauger hierzu - Google Patents

Verfahren zum erfassen der vor- und rückbewegung eines staubsaugers sowie staubsauger hierzu Download PDF

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Publication number
EP1827194B1
EP1827194B1 EP05817402A EP05817402A EP1827194B1 EP 1827194 B1 EP1827194 B1 EP 1827194B1 EP 05817402 A EP05817402 A EP 05817402A EP 05817402 A EP05817402 A EP 05817402A EP 1827194 B1 EP1827194 B1 EP 1827194B1
Authority
EP
European Patent Office
Prior art keywords
motor current
vacuum cleaner
brush
attachment
sub
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.)
Not-in-force
Application number
EP05817402A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1827194A1 (de
Inventor
Carsten Zautke
Martin Fieseler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Publication of EP1827194A1 publication Critical patent/EP1827194A1/de
Application granted granted Critical
Publication of EP1827194B1 publication Critical patent/EP1827194B1/de
Not-in-force 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
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • 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
    • A47L9/2831—Motor parameters, e.g. motor load or speed
    • 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
    • A47L9/2836—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
    • A47L9/2847—Surface treating elements

Definitions

  • the invention firstly relates to a method for detecting the forward and backward movement of an electric motor driven brush having intent of a vacuum cleaner, in particular household vacuum cleaner, according to the features of the preamble of claim 1.
  • the invention has the object to provide a method of the type in question, which allows the best possible adaptation to the respective conditions, in particular floor coverings.
  • the reference motor current is a motor current averaged from a continuous measurement.
  • the reference motor current is then adjusted to the prevailing conditions, such as the carpet pile height, which affects the resistance on the brush.
  • the brush of the vacuum cleaner or of the attachment connected to the vacuum cleaner is driven about a rotational axis extending transversely to the direction of movement.
  • the drive direction of the brush is usually selected in the feed direction of the vacuum cleaner, so that the mechanically dissolved dirt with respect to a conventional feed movement of the device is thrown back towards the arranged there, vacuum-loaded suction mouth.
  • the current consumption of the brush is lower in the forward movement of the device than in a return movement of the device, in which the rotational movement of the brush acts counter to the direction of movement of the device.
  • the rotating brush acts here in conjunction with the return movement of the device as a resistance, which is reflected in increased power consumption. If the determined motor current is lower than the reference motor current, then the above-described rotational movement of the electric motor-driven brush is a forward movement of the device. If the determined motor current is greater than the reference motor current, it is a return movement. The standstill of the vacuum cleaner or connected to this, the electric motor driven brush having attachment is by means of of the method detectable. In this state, the determined motor current is approximately equal to the reference motor current.
  • the determined motor current is averaged with the aid of a low-pass filter, the time constant of the low-pass filter being large compared with a typical forward and reverse time of the header, eg. 1 to 5 sec., Preferably about 3 sec.
  • the motor current is more preferably determined by means of a shunt resistor. At this shunt resistor, a voltage drops, which is proportional to the motor current.
  • the invention relates to a vacuum cleaner according to the features of the preamble of claim 4.
  • the invention has the object to provide a vacuum cleaner of the type mentioned, which allows an advantageous detection of the direction of movement of the brush.
  • the measuring device detects the already occurring motor current during the operation of the device and compares it with the reference motor current.
  • the reference motor current In a conventional rotational movement of the driven brush in the feed direction of the device compared to the reference motor current detected lower motor current corresponds to the forward movement of the vacuum cleaner or the attachment, since the rotating brush acts less than resistance, but even movement supportive in this direction. If, on the other hand, the detected motor current is greater than the reference motor current, then the return movement of the device can be summed up from this. The case here against the device movement direction rotating brush acts accordingly as a resistor, which leads to an increased power consumption.
  • the proposed measuring device even a standstill of the device or the vacuum cleaner can be detected by the proposed measuring device. This is the case when the detected motor current is approximately equal to the reference motor current.
  • a shunt resistor is preferably provided, at which a voltage drops, which is proportional to the motor current.
  • the averaging circuit provided, which has a low pass. Accordingly, the reference motor current to be compared with the detected motor current is adapted to the prevailing conditions during the suction processing, such as carpet pile height, etc.
  • the time constant of the low-pass filter is set large compared with a typical forward and return time of the vacuum cleaner or of the attachment, in particular between 1 to 5 seconds, preferably 3 seconds.
  • a vacuum cleaner 1 is shown in the form of a stalk-guided household vacuum cleaner to which a header 2 is connected both electrically and fluidly.
  • the latter has a roller-shaped brush 3, the axis of rotation x is aligned parallel to the front edge edge of the attachment 2 and thus transversely to a conventional travel direction r, which corresponds to a forward movement of the device 2.
  • the roller-shaped brush 3 has radially protruding bristle tufts 4, which project beyond the bottom of the device 5 on the underside, for mechanical brushing of the carpet to be cleaned 6.
  • the brush 3 is driven by an electric motor.
  • the relevant electric motor 7 is in the FIGS. 2 and 3 only shown schematically.
  • the power transmission takes place via a belt drive 8, not shown.
  • the electric motor 7 is offset via the belt drive 8, the brush 3 in a rotational movement about the axis x with a rotational direction d, which is chosen so that during conventional advancement of the attachment 2 in the direction of travel r a supporting thrust effect is reached.
  • a direction of rotation of the brush 3 is selected so that by friction with the carpet 6, a component of movement in the direction of travel r is reached.
  • a direction of rotation of the brush 3 is selected counterclockwise.
  • This motor current is used to detect the forward and backward movement of the attachment 2.
  • a measuring device such as, for example, based on a first embodiment in Fig. 5 provided, which measures the motor current of the brush 3 driving electric motor 7 and compares this determined motor current value with a reference motor current value.
  • the reference motor current I RM is a motor current averaged from a continuous measurement, an averaging circuit having a low-pass filter 11 being provided to provide the reference motor current I RM .
  • the time constant of the low-pass filter 11 is sized large compared to a typical forward and return time of the attachment 2, so for example. With three seconds. Within this time, the header 2 has been moved at least once in the forward direction r and once in the return direction r 'in the rule.
  • the value I RM averaged therefrom is currently adapted to the conditions, for example, to the frictional resistance built up between the bristles 4 of the brush 3 and the carpet 6, which, in turn, depends on the carpet pile height, among other things.
  • the relevant motor current I M is determined by means of a shunt resistor 12, at which a voltage drops, which is proportional to the motor current.
  • the instantaneous motor current I M is compared by means of a comparator 13 with the averaged motor current I RM . If the instantaneous motor current I M is less than the averaged motor current I R , this is to be deduced from a movement of the attachment 2 in the usual forward direction r. If, however, the instantaneous motor current I M is greater than the average motor current I RM , this can be deduced from a displacement of the attachment 2 in the return direction r '. Even the stoppage of the attachment 2 can be detected by means of this measuring device 10, since in this case the instantaneous motor current I M corresponds approximately to the averaged motor current I RM .
  • FIG. 6 an alternative circuit arrangement is shown.
  • the signal processing takes place digitally by means of a microprocessor 14 after the current signal has been digitized with the aid of an analog-to-digital converter 15.
  • the obtained movement direction signal can be used to control the brush motor 7 and / or the fan motor in the vacuum cleaner and / or to control secondary air openings in the suction mouth 9 of the header 2 limiting area.
  • the motion is detected electrically / electronically without the use of particular wear-prone mechanical or optical / acoustic sensor elements or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)
EP05817402A 2004-12-24 2005-12-16 Verfahren zum erfassen der vor- und rückbewegung eines staubsaugers sowie staubsauger hierzu Not-in-force EP1827194B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004062536A DE102004062536A1 (de) 2004-12-24 2004-12-24 Verfahren zum Erfassen der Vor- und Rückbewegung eines Staubsaugers sowie Staubsauger hierzu
PCT/EP2005/056861 WO2006069923A1 (de) 2004-12-24 2005-12-16 Verfahren zum erfassen der vor- und rückbewegung eines staubsaugers sowie staubsauger hierzu

Publications (2)

Publication Number Publication Date
EP1827194A1 EP1827194A1 (de) 2007-09-05
EP1827194B1 true EP1827194B1 (de) 2010-10-20

Family

ID=36061454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05817402A Not-in-force EP1827194B1 (de) 2004-12-24 2005-12-16 Verfahren zum erfassen der vor- und rückbewegung eines staubsaugers sowie staubsauger hierzu

Country Status (8)

Country Link
EP (1) EP1827194B1 (zh)
JP (1) JP2008525073A (zh)
CN (1) CN101083932B (zh)
AT (1) ATE484991T1 (zh)
DE (2) DE102004062536A1 (zh)
RU (1) RU2007128343A (zh)
TW (1) TW200631541A (zh)
WO (1) WO2006069923A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3137557A1 (fr) * 2022-07-11 2024-01-12 Seb S.A. Aspirateur pourvu d’un mode de fonctionnement pour protection des sols
FR3137556A1 (fr) * 2022-07-11 2024-01-12 Seb S.A. Aspirateur comprenant des moyens de détection de sol

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105142B4 (de) * 2012-06-14 2020-03-05 Miele & Cie. Kg Leistungssteller für einen Staubsauger und Staubsauger mit einem solchen Leistungssteller
DE102013102847A1 (de) * 2013-03-20 2014-09-25 Miele & Cie. Kg Verfahren zum Einstellen der Leistung eines Staubsaugergebläses, Regelungseinrichtung zur Umsetzung des Verfahrens und Staubsauger mit einer solchen Regelungseinrichtung
DE102014111720A1 (de) * 2014-08-18 2016-02-18 Miele & Cie. Kg Elektrobürste für einen Staubsauger mit Wirbelstrombremse
DE102014114375A1 (de) * 2014-10-02 2016-04-07 Vorwerk & Co. Interholding Gmbh Angetriebene Bürste als Vorsatzgerät für einen Staubsauger
CN109276184B (zh) * 2017-07-21 2022-03-29 添可电器有限公司 手持式吸尘器及其控制方法
CN112493920A (zh) * 2020-11-25 2021-03-16 深圳拓邦股份有限公司 清洁设备的工作控制方法、装置及清洁设备
CN112515578B (zh) * 2020-11-25 2022-06-17 深圳拓邦股份有限公司 一种清洁设备的工作控制方法、装置及清洁设备
CN115474865A (zh) * 2021-06-16 2022-12-16 创科无线普通合伙 地板清洁器
CN114252651A (zh) * 2021-11-04 2022-03-29 深圳拓邦股份有限公司 一种设备运动方向检测装置及电子设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0479609A3 (en) * 1990-10-05 1993-01-20 Hitachi, Ltd. Vacuum cleaner and control method thereof
JPH04176424A (ja) * 1990-11-09 1992-06-24 Matsushita Electric Ind Co Ltd 電気掃除機
CN2138958Y (zh) * 1990-12-04 1993-07-28 洪声贵 自行式静电吸尘器
JP2900618B2 (ja) * 1991-02-18 1999-06-02 松下電器産業株式会社 セントラルクリーナ
JPH06254017A (ja) * 1993-03-10 1994-09-13 Matsushita Electric Ind Co Ltd 電気掃除機の制御装置
CN2498979Y (zh) * 2001-09-18 2002-07-10 泰怡凯电器(苏州)有限公司 自动吸尘器的位置定位检测机构
DE10338874A1 (de) * 2002-09-07 2004-03-18 Vorwerk & Co. Interholding Gmbh Staubsauger mit einem Elektromotor und einem Vorsatzgerät

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3137557A1 (fr) * 2022-07-11 2024-01-12 Seb S.A. Aspirateur pourvu d’un mode de fonctionnement pour protection des sols
FR3137556A1 (fr) * 2022-07-11 2024-01-12 Seb S.A. Aspirateur comprenant des moyens de détection de sol
EP4306024A1 (fr) * 2022-07-11 2024-01-17 Seb S.A. Aspirateur comprenant des moyens de détection de sol
EP4306021A1 (fr) * 2022-07-11 2024-01-17 Seb S.A. Aspirateur pourvu d'un mode de fonctionnement pour protection des sols
WO2024013439A1 (fr) * 2022-07-11 2024-01-18 Seb S.A. Aspirateur comprenant des moyens de détection de sol
WO2024013440A1 (fr) * 2022-07-11 2024-01-18 Seb S.A. Aspirateur pourvu d'un mode de fonctionnement pour protection des sols

Also Published As

Publication number Publication date
RU2007128343A (ru) 2009-01-27
DE102004062536A1 (de) 2006-07-06
EP1827194A1 (de) 2007-09-05
DE502005010428D1 (de) 2010-12-02
ATE484991T1 (de) 2010-11-15
CN101083932B (zh) 2010-12-15
JP2008525073A (ja) 2008-07-17
WO2006069923A1 (de) 2006-07-06
CN101083932A (zh) 2007-12-05
TW200631541A (en) 2006-09-16

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