EP1871209B1 - A vacuum cleaner - Google Patents

A vacuum cleaner Download PDF

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Publication number
EP1871209B1
EP1871209B1 EP06711090A EP06711090A EP1871209B1 EP 1871209 B1 EP1871209 B1 EP 1871209B1 EP 06711090 A EP06711090 A EP 06711090A EP 06711090 A EP06711090 A EP 06711090A EP 1871209 B1 EP1871209 B1 EP 1871209B1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
motor
operated
dust
particles
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
EP06711090A
Other languages
German (de)
French (fr)
Other versions
EP1871209A1 (en
Inventor
Fatih Suzek
Husnu Kerpicci
Dr. Levent Akdag
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP1871209A1 publication Critical patent/EP1871209A1/en
Application granted granted Critical
Publication of EP1871209B1 publication Critical patent/EP1871209B1/en
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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/19—Means for monitoring filtering operation
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/04—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air
    • 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
    • A47L9/102—Dust separators
    • 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
    • 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
    • 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

  • This invention relates to a vacuum cleaner wherein the particle trapping performance is improved.
  • the fibers of the dust bag are in a stretched position where the pores are enlarged.
  • the permeability of the dust bag also increases. Therefore, especially small sized particles may pass through the mentioned pores and cannot be trapped inside the bag. Furthermore, particles that strike to the said fibers of the dust bag with a considerably high velocity cause said bag to wear earlier than expected and thus to have a shorter usable lifespan.
  • the aim of the present invention is the realization of a vacuum cleaner wherein the lifespan of the dust bag is increased and dust trapping performance is improved.
  • the vacuum cleaner (1) comprises a body (2), a vacuum chamber (4) positioned inside the body (2), at least one motor (3) which is used to generate the vacuum necessary for suction, a dust bag (6) inside the vacuum chamber (4) where sucked dust and particles are accumulated, and an electrical filter (5) whereby charged particles are trapped.
  • the motor (3) utilized is an electrical motor which may be operated at least at two different rpms.
  • the electrical energy necessary for the motor (3) is supplied either from the network or from a power supply inside the body (2).
  • the electrical filter (5) is such a filter that is charged temporarily as long as electric is supplied from a power supply and is neutral when the power is cut. In other words, it traps charged particles as long as it is supplied with electricity and releases them when the electricity is cut.
  • the aforementioned electrical filter (5) is positioned inside the body (2) in such a way that the flow is not blocked.
  • the filter cleaning program is performed during the cleaning process.
  • the rpm of the motor (3) is decreased for a short period of time and then, by cutting the current applied to the electrical filter (5) it is achieved that the particles on the filter (5) are slowly transferred to the dust bag (6).
  • cleaning process is continued as the electrical filter (5) is again supplied with a current and as the rpm of the motor (3) is increased.
  • filter cleaning program is performed at the end of cleaning process.
  • filter cleaning program is performed at the beginning of the cleaning process. Since the current of the electrical filter (5) is cut at the end of the last cleaning process, dust particles fall under the filter (5).
  • the motor (3) is operated at a lower speed for a short period of time and by not supplying the electrical filter (5) with a current it is achieved that dust particles accumulated under the electrical filter (5) and left from the last cleaning process are slowly transferred to the dust bag (6). At the end of this period, it is started to supply the electrical filter (5) with current, and by increasing the rpm of the motor (3), normal cleaning procedure is continued.
  • the vacuum cleaner (1) incorporates a fine filter (8) positioned after the dust bag (6) before the motor (3).
  • the vacuum cleaner (1) comprises an ionizer (7) which is positioned before the electrical filter (5) and whereby sucked particles are charged with an electric load.
  • the ionizer (7) is utilized to charge the particles sucked from the surface where cleaning is performed by means of such state-of-the-art applications as tribo-charging, electrical field application, etc.
  • the vacuum cleaner (1) in order to be able to decide the time when the filter cleaning program is to be performed, also comprises a sensor (not shown in figures) which measures the amount of the dust particles accumulated on the electrical filter (5).
  • the rpm of the motor (3) is gradually changed instead of being kept constant. For instance, if the program is applied at the end of the cleaning procedure, the rpm of the motor (3) is gradually decreased.
  • the vacuum cleaner (1) also comprises an audio and/or visual warning unit (not shown in figures) which is used to inform the user that the filter cleaning program is being performed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

This invention relates to a vacuum cleaner (1) wherein means are provided to improve the particle trapping performance thereof. Said vacuum cleaner (1) incorporates a motor the rpm of which is decreased when the current applied to the electrical filter (5) is cut.

Description

  • This invention relates to a vacuum cleaner wherein the particle trapping performance is improved.
  • In vacuum cleaners, dust and dirt particles sucked through a suction opening by generating vacuum via a motor, are accumulated inside a bag or a chamber. In the current state-of-the-art, it is also known that electrical / electrostatic filters are utilized either together with the dust bags or alone by themselves. Electrical filters are manufactured from conductive materials which are charged by a certain load by being supplied with current and attract dust particles having an opposite charge. Dust particles are already charged as they enter the vacuum cleaner. For that reason, it is not necessary to further charge said particles. However, in some applications where these charges are less than enough, after entering the vacuum cleaner, dust particles are charged by applying such methods as tribo-charging or being passed through an electric field.
  • In the International Patent Application no. WO 02069777 , a description is given of a vacuum cleaner which incorporates an electrostatic filter. The electrical filter positioned either before or after the cyclonic separator facilitates the trapping of small sized dust particles.
  • Other known vacuum cleaner is described in document EP-A-0 443 254 .
  • In the European Patent Document no. EP 815788 , a description is given of a vacuum cleaner comprising an electrostatic filter used for trapping fine dust particles.
  • During the cleaning operation, as a result of the vacuum generated by the motor, the fibers of the dust bag are in a stretched position where the pores are enlarged. In relation to the increasing flow rate, the permeability of the dust bag also increases. Therefore, especially small sized particles may pass through the mentioned pores and cannot be trapped inside the bag. Furthermore, particles that strike to the said fibers of the dust bag with a considerably high velocity cause said bag to wear earlier than expected and thus to have a shorter usable lifespan.
  • The aim of the present invention is the realization of a vacuum cleaner wherein the lifespan of the dust bag is increased and dust trapping performance is improved.
  • The vacuum cleaner designed to fulfill the objectives of the present invention is illustrated in the annexed drawings where:
    • Figure 1 - is a schematic view of a vacuum cleaner.
    • Figure 2 - is a flow chart of the operation method of the vacuum cleaner.
    • Elements shown in figures are numbered as follows:
      1. 1. Vacuum cleaner
      2. 2. Body
      3. 3. Motor
      4. 4. Vacuum chamber
      5. 5. Electrical filter
      6. 6. Dust bag
      7. 7. Ionizer
      8. 8. Fine filter
  • The vacuum cleaner (1) comprises a body (2), a vacuum chamber (4) positioned inside the body (2), at least one motor (3) which is used to generate the vacuum necessary for suction, a dust bag (6) inside the vacuum chamber (4) where sucked dust and particles are accumulated, and an electrical filter (5) whereby charged particles are trapped.
  • The motor (3) utilized is an electrical motor which may be operated at least at two different rpms. The electrical energy necessary for the motor (3) is supplied either from the network or from a power supply inside the body (2).
  • The electrical filter (5) is such a filter that is charged temporarily as long as electric is supplied from a power supply and is neutral when the power is cut. In other words, it traps charged particles as long as it is supplied with electricity and releases them when the electricity is cut. The aforementioned electrical filter (5) is positioned inside the body (2) in such a way that the flow is not blocked.
  • In the vacuum cleaner (1), applied is a filter cleaning program incorporating the following steps,
    • operating the motor (3) at a lower rpm for a certain period of time (T) (101),
    • cutting the current of the electrical filter (5) for the mentioned period of time (T) (102)
    • slowly transferring the particles trapped on the electrical filter (5) to the dust bag (6) (103).
  • In one embodiment of the present invention, the filter cleaning program is performed during the cleaning process. As the cleaning process is continuing, the rpm of the motor (3) is decreased for a short period of time and then, by cutting the current applied to the electrical filter (5) it is achieved that the particles on the filter (5) are slowly transferred to the dust bag (6). At the end of this period, cleaning process is continued as the electrical filter (5) is again supplied with a current and as the rpm of the motor (3) is increased.
  • In another embodiment of the present invention, filter cleaning program is performed at the end of cleaning process.
  • In yet another embodiment of the present invention, filter cleaning program is performed at the beginning of the cleaning process. Since the current of the electrical filter (5) is cut at the end of the last cleaning process, dust particles fall under the filter (5). When the vacuum cleaner (5) is again operated, the motor (3) is operated at a lower speed for a short period of time and by not supplying the electrical filter (5) with a current it is achieved that dust particles accumulated under the electrical filter (5) and left from the last cleaning process are slowly transferred to the dust bag (6). At the end of this period, it is started to supply the electrical filter (5) with current, and by increasing the rpm of the motor (3), normal cleaning procedure is continued.
  • In yet another embodiment of the present invention, the vacuum cleaner (1) incorporates a fine filter (8) positioned after the dust bag (6) before the motor (3).
  • In another embodiment of the present invention, the vacuum cleaner (1) comprises an ionizer (7) which is positioned before the electrical filter (5) and whereby sucked particles are charged with an electric load. The ionizer (7) is utilized to charge the particles sucked from the surface where cleaning is performed by means of such state-of-the-art applications as tribo-charging, electrical field application, etc.
  • In another embodiment of the present invention, in order to be able to decide the time when the filter cleaning program is to be performed, the vacuum cleaner (1) also comprises a sensor (not shown in figures) which measures the amount of the dust particles accumulated on the electrical filter (5).
  • In another embodiment of the present invention, during the filter cleaning program, the rpm of the motor (3) is gradually changed instead of being kept constant. For instance, if the program is applied at the end of the cleaning procedure, the rpm of the motor (3) is gradually decreased.
  • In another embodiment of the present invention, the vacuum cleaner (1) also comprises an audio and/or visual warning unit (not shown in figures) which is used to inform the user that the filter cleaning program is being performed.
  • By means of the vacuum cleaner (1) subject to the present invention, it is accomplished that small sized dust particles are trapped in the dust bag (6) and moreover that the lifespan of the dust bag (6) is elongated since said particles hit the dust bag (6) at lower speeds.

Claims (9)

  1. A vacuum cleaner (1) comprising; a body (2); a vacuum chamber (4) positioned inside the body (2); at least one motor (3) generating the vacuum necessary for suction and which may be operated at least at two different rpms; a dust bag (6) inside the vacuum chamber (4) where sucked dust and particles are accumulated and an electrical filter (5) which is used to trap charged particles by being charged as a current is applied, characterized in that the dust particles trapped on said electrical filter are slowly transferred to the dust bag (6) as the applied current is cut when the motor (3) is operated at a lower speed for a certain period of time (T).
  2. A vacuum cleaner (1) according to Claim 1, characterized in that said motor (3) which is operated at a lower speed during the cleaning process.
  3. A vacuum cleaner (1) according to Claim 1, characterized in that said motor (3) which is operated at a lower speed at the end of the cleaning process.
  4. A vacuum cleaner (1) according to Claim 1, characterized in that said motor (3) which is operated at a lower speed at the beginning of the cleaning process.
  5. A vacuum cleaner (1) according to any one of the preceding Claims, characterized by a power supply positioned inside the body (2).
  6. A vacuum cleaner (1) according to any of the above Claims, characterized by a sensor which measures the amount of dust particles accumulated on the electrical filter (5) in order to be able to decide the period of time (T) in which the motor (3) is to be operated at a lower speed.
  7. A vacuum cleaner (1) according to any of the preceding Claims, characterized by an audio and/or visual warning unit which is used to inform the user when the motor (3) is being operated at a lower speed.
  8. A vacuum cleaner (1) according to any of the preceding Claims, characterized in that said motor (3) the rpm of which is changed gradually when the electrical filter (5) is not supplied with current.
  9. A vacuum cleaner (1) according to any of the above Claims, characterized by an ionizer (7) positioned before the electrical filter (5), and used to electrically charge the dust and particles.
EP06711090A 2005-03-14 2006-03-14 A vacuum cleaner Not-in-force EP1871209B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200500905 2005-03-14
PCT/IB2006/050785 WO2006097890A1 (en) 2005-03-14 2006-03-14 A vacuum cleaner

Publications (2)

Publication Number Publication Date
EP1871209A1 EP1871209A1 (en) 2008-01-02
EP1871209B1 true EP1871209B1 (en) 2008-06-18

Family

ID=36579872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06711090A Not-in-force EP1871209B1 (en) 2005-03-14 2006-03-14 A vacuum cleaner

Country Status (4)

Country Link
EP (1) EP1871209B1 (en)
AT (1) ATE398409T1 (en)
DE (1) DE602006001519D1 (en)
WO (1) WO2006097890A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107348909A (en) * 2017-08-29 2017-11-17 王美航 A kind of small-sized automatic cleaning apparatus of cell

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1501927A (en) * 1976-08-26 1978-02-22 Bates W Vacuum cleaner
DE8104740U1 (en) * 1981-02-20 1981-07-09 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal DUST COLLECTOR FOR VACUUM CLEANERS
US5143524A (en) * 1990-02-20 1992-09-01 The Scott Fetzer Company Electrostatic particle filtration
DE19644589B4 (en) * 1996-10-26 2006-10-26 Wessel-Werk Gmbh Vacuum cleaner with device to assist the cleaning performance by electrostatic forces

Also Published As

Publication number Publication date
WO2006097890A1 (en) 2006-09-21
ATE398409T1 (en) 2008-07-15
EP1871209A1 (en) 2008-01-02
DE602006001519D1 (en) 2008-07-31

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