EP2988642A1 - Schmutzsauger mit abreinigungssteuerung für den oder die filter - Google Patents
Schmutzsauger mit abreinigungssteuerung für den oder die filterInfo
- Publication number
- EP2988642A1 EP2988642A1 EP14716234.1A EP14716234A EP2988642A1 EP 2988642 A1 EP2988642 A1 EP 2988642A1 EP 14716234 A EP14716234 A EP 14716234A EP 2988642 A1 EP2988642 A1 EP 2988642A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- chamber
- suction
- filter
- intermediate chamber
- 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
Links
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 45
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000011045 prefiltration Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000013022 venting Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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
- A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
-
- 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
- A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
- A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
-
- 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 method for operating a vacuum cleaner with cleaning control for the filter or the filter according to the preamble of claim 1.
- cleaning control has become known with the subject of DE 101 01 219 A1, in which, however, a vacuum cleaner with a split filter and two Valves is provided to control the cleaning of the filter.
- each filter to be cleaned off (filter half) is assigned its own switching valve.
- Each switching valve was electromagnetically controlled and consisted of a solenoid, which operates a valve rod, were arranged on the two spaced-apart valve plate.
- valve rod 22 is shown in Figure 5, on the two spaced switching valves 65, 72 are arranged.
- the invention is therefore based on the object of DE 101 01 219 A1, a cleaning control for one or more filters of a Educate dirt sucker so that the energy consumption of the valve rod (s) actuating solenoid or a similar control device is substantially reduced and a secured against fluttering of the valve device opening and closing position of the changeover valve is ensured.
- the invention is characterized by the technical teaching of claim 1.
- Feature of the invention is that in a conventional manner, the two seated on the same valve rod valve plate each complete the passage opening of a suction chamber, and that air leading in closing connection to the suction chamber adjoins an intermediate chamber, which is arranged upstream of the main filter and flows through the suction air is, and that in the region of this intermediate chamber, a valve arrangement is arranged, which produces a pressure equalization between the pressure chamber and the intermediate chamber in the Ab mecanicswolf.
- the inventively provided pressure equalization between the pressure chamber and the intermediate chamber ensures that the harmful negative pressure in the cleaning position, which acts in the opening direction on the valve disk and which is opposite to the lifting magnet, omitted because the intermediate chamber is vented and the negative pressure removed from this intermediate chamber becomes.
- the invention describes as a preferred embodiment of an electromagnetically actuated changeover valve
- the actuating rod cooperates with the valve assembly to minimize the actuating force on the actuating rod.
- the invention is not limited thereto.
- all other known drive systems can be optimized with the invention, in which their operating force (and thus also the Power consumption) are minimized.
- This is done according to the teachings of the invention always characterized in that the drive or actuation system of Umschaltventilanssen cooperates with the valve system of the dirty vacuum so that the negative pressure generated in the filter system is used to minimize the operating force of the Umschaltventilan emblem. Accordingly, the negative pressure generated in the filter system always relieves the drive system of Umschaltventil adopted and minimizes their drive power.
- the minimization of the driving force for a solenoid is therefore only to be understood as an example and does not limit the scope of the invention.
- the further advantage is that despite a lower power consumption and a lower drive power of the solenoid reliable fluttering of the valve device with the two valve plates on the valve stem is avoided.
- the intermediate chamber In the cleaning position, the intermediate chamber is brought into an air-tight connection with the pressure chamber. Accordingly, in the open position, the downstream adjoining the suction chamber intermediate chamber is vented and thus removes a vacuum from this intermediate chamber. This is achieved with a third valve, which allows the compressed air into the intermediate chamber and thus eliminates eliminates the prevailing negative pressure, which would be opposite to the lifting movement of the solenoid.
- the third valve is arranged together on the valve rod with the two other valve plates, so that upon actuation of the valve rod for the other two valve disc and the same time the third valve is actuated, which the ventilation of the intermediate chamber of the pressure chamber reached out.
- the cross section of the third valve is smaller than the cross section of the valve disk, which ensures a closing movement at the inlet between the pressure chamber and the suction chamber.
- valve cross-section of the third valve is smaller than the valve cross section of the one valve disc, which is arranged between the pressure chamber and the suction chamber.
- This third valve can be arranged completely independently in the connection region between the pressure chamber and the intermediate chamber and, for example, break through the upper part of the pressure chamber or the upper part of the cleaning unit so as to open on demand and according to the required cleaning mode, when the cleaning mode is turned on, so as to be an air-tight Make connection between the pressure chamber and the intermediate chamber.
- the vent valve is arranged as a spring-loaded check valve, which only opens against the force of a spring when in the cleaning position, the negative pressure in the intermediate chamber rises sharply and also in the opposite pressure chamber of the outflow pressure of the air rises sharply. This pressure difference then leads to an opening of the spring-loaded in the closed position held check valve.
- Figure 1 schematically a cross section through a vacuum cleaner with the arrangement of the filter cleaning a flat filter in the suction mode
- Figure 2 the same view as Figure 1 in the cleaning mode
- FIG. 3 shows schematically the comparison of the force on the armature with respect to the time during the changeover from the suction mode to the cleaning mode
- a vacuum cleaner is generally shown, which consists of a main filter 27 and a pre-filter 9 upstream.
- the invention is not limited thereto. It may also have two main filters 27, which are then each assigned a cleaning unit, as shown in the form of the cleaning unit 3 in Figure 1.
- the cleaning arrangement according to FIGS. 1 and 2 of the invention can also be transferred to a double filter arrangement according to DE 101 01 219 A1.
- the vacuum cleaner essentially consists of a container 1 receiving the dirt, which can be detached via lateral closures 2 with a cleaning unit 3 arranged above it connected is. On the cleaning unit 3, a hood unit 4 is detachably arranged.
- the dirt-laden air flows in the direction of arrow 6 via the inlet 5 into the interior of the container 1 and flows in the direction of arrow 8 against the underside of the trained as a flat filter prefilter 9, with a circumferential seal 11 in two spaced-apart side walls 14, 15 below the Cleaning unit 3 is arranged.
- a flat filter instead of a flat filter, other filter types can be used, such as round filters, pleated filters and the like.
- the air flows in the direction of arrow 18 in the suction chamber 12, which is formed by the two spaced-apart side walls 14, 15 in the cleaning unit 3, wherein the two side walls 14, 15 are penetrated by openings 16, 17 , which are optionally closed by a respective valve disk 19, 21, when the vacuum cleaner is switched from the suction mode of Figure 1 in the cleaning mode of Figure 2.
- the left-hand opening 17 in the side wall 15 is opened because the valve disk 19 seated firmly on the valve rod 20 is lifted off the opening 17, while the valve disk 21 occluding the opening 16 under the action of a spring 22 in FIG the closed position is held, so that thus the opening 16 is hermetically sealed.
- the solenoid 23 is not yet actuated because the closing force is applied to the valve plate 21 solely by the spring 22 in the direction of arrow 24.
- the force of the spring 22 is assisted by the fact that a negative pressure in the suction chamber 12 in comparison to the overlying pressure chamber 34 prevails, so that even under the action of the overpressure of the valve plate 21 is held in its closed position in the opening 16, and the force of Spring 22 supported.
- a negative pressure which is exerted on the valve plate 21 and supports the force of the spring 22
- a likewise seated on the valve rod 20 third valve with a valve plate 37 is pressed against an associated outlet opening 38, so that these outlet opening 38 is closed in the suction mode is.
- the suction air thus flows through the main filter 27 and leaves it in the direction of arrow 28 by the suction air flows through a clean air chamber 29, which is arranged on the suction side of the turbine 30.
- the turbine sucks this air in the direction of arrow 28, compresses it and pushes it under high pressure in the direction of arrow 31 in the pressure chamber 34 arranged above it.
- the pressure chamber is separated from the cleaning unit 3 by the upper part 13.
- the outlet opening 38 which is still closed for the time being by the valve plate 37, is arranged.
- the two filters 9, 27 are otherwise arranged in the passage areas of a base plate 10, which forms the underside of the cleaning unit 3.
- the drive motor of the turbine 30 is cooled by inflowing cooling air 32, which is blown out as exhaust air flow 33 ..
- the solenoid 23 is held in a holder 25 on the side wall 14 of the upper part 3.
- the air flowing in the direction of arrow 31 into the pressure chamber 34 leaves an outlet 36 in the region of the hood unit 4 in the direction of arrow 35.
- the intermediate chamber 26 to be vented with the third valve disk 37 is formed by the side wall 15, which is closed by the valve disk 19 as required and by the upper part 13 of the cleaning unit 3.
- the intermediate chamber 26 sits (upstream) in front of the main filter 27 and after the pre-filter.
- the intermediate chamber 26 is closed airtight by a wall of the base plate 10 downwards.
- the solenoid 23 is actuated in the direction of arrow 24 'in its open position and is energized, where he must overcome the force of the spring 22 to move the valve rod 20 in the shift position in the direction of arrow 24'.
- the negative pressure prevailing in the intermediate chamber 26 would ensure that the negative pressure continues to act on the valve disk 19 and tries to lift it from its valve seat at the opening 17. Accordingly strong the solenoid 23 must be formed because he must overcome the one hand, the force of the spring 22 and on the other hand, the opening force acting on the valve plate 9, must additionally overcome.
- lifting magnets 23 had to be used with a relatively high power requirement in order to avoid unwanted fluttering of the valve rod 20 and thus an abrupt lifting of the valve disk 19 from the opening 17.
- the solenoid 23 a strong closing force in the direction of arrow 24 'unfolds, because the tearing force or the opening force on the valve plate 19 by the ventilation of the intermediate chamber 26 is omitted.
- the cross-section 39 of the valve disk 37 of the third valve is smaller than the air-effective cross-section of the valve disk 19, so that an opening force acting on the valve disk 27 in the suction mode in FIG. 1 does not lead to an opening of the outlet opening 38.
- the cross section 39 of the valve disk 37 should therefore be substantially smaller than the cross section 40 of the valve disk 2.
- the air flow leaving the turbine in the direction of arrow 31 leads to the purge air flow 42 shown in FIG. 2, which partially leaves the outlet 36, but for the greater part as purge air flow 42 abruptly flows through the prefilter 9 from the opposite side, and impulsively cleanse it.
- the Abitessstrom 42 is maintained only until a pressure equalization in the container 1 has taken place.
- cross section 41 of the valve disk 19 is approximately the same size as the cross section 40 of the valve disk 21.
- an opening force 53 acts on the side of the pressure chamber 34 on the lower cross-section 39 having the valve plate 37, which is accordingly pressed with a higher closing force 56 against the valve seat in the opening 38.
- the spring 22 operates in the closing direction with a closing force 54 on the valve rod and thus holds the valve disk 21 in its closed position, although on the other side of the valve disk, a lower opening force 55 acts on the side of the smaller cross-sectional third valve disk 37. This is the reason that the cross section of the valve disk 37 must be smaller than the cross section of the valve disk 21.
- the solenoid 23 operates in the direction of arrow 24 ', and with opening of the valve disk 37, the intermediate chamber 26 from the pressure chamber with the air flow
- the closing force 57 on the valve plate 19 is substantially increased, because the negative pressure in the intermediate chamber 26 is omitted, and the solenoid 23 must - in comparison to the prior art - no longer so apply strong lifting force, because the lifting force only has to overcome the resistance of the spring 22.
- the solenoid can be designed with lower electrical power, and achieved an equal operating force, as belonging to the prior art lifting magnet.
- Figure 3 shows the advantageous effect of the invention.
- the force of the magnet armature of the lifting magnet 23 is indicated, which corresponds approximately to the power consumption of the solenoid, while the abscissa indicates the time.
- the solenoid is abruptly driven in the direction of arrow 24 '. Now, if no venting of the intermediate chamber 26 takes place, the armature would require a force up to position 47, to then perform the cleaning in this holding position to position 48. After switching off the current to the solenoid 23, the curve would then run from position 48 to position 49.
- the difference between the two positions 50, 47 is the force saving 52 according to the invention on the lifting magnet, which has been achieved by the ventilation according to the invention of the intermediate chamber 26 in the cleaning mode.
- the arrangement of the third valve stable closing and opening positions of the valve device can be achieved and a flutter of the valve device - as in the prior art known - can thus be reliably avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013007183.6A DE102013007183A1 (de) | 2013-04-25 | 2013-04-25 | Schmutzsauger mit Abreinigungssteuerung für den oder die Filter |
PCT/EP2014/000710 WO2014173481A1 (de) | 2013-04-25 | 2014-03-14 | Schmutzsauger mit abreinigungssteuerung für den oder die filter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2988642A1 true EP2988642A1 (de) | 2016-03-02 |
EP2988642B1 EP2988642B1 (de) | 2017-09-20 |
Family
ID=50473250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14716234.1A Active EP2988642B1 (de) | 2013-04-25 | 2014-03-14 | Schmutzsauger mit abreinigungssteuerung für den oder die filter |
Country Status (5)
Country | Link |
---|---|
US (1) | US10470632B2 (de) |
EP (1) | EP2988642B1 (de) |
CN (1) | CN105142481B (de) |
DE (1) | DE102013007183A1 (de) |
WO (1) | WO2014173481A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016100780A1 (de) * | 2016-01-19 | 2017-07-20 | Festool Gmbh | Sauggerät |
US11197593B2 (en) | 2016-03-30 | 2021-12-14 | Husqvarna Ab | Relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector |
EP3238592B1 (de) * | 2016-04-27 | 2021-06-02 | Diversey, Inc. | Staubsauger |
GB201700637D0 (en) | 2017-01-13 | 2017-03-01 | Black & Decker Inc | Dust collection box |
EP3586710B1 (de) * | 2017-02-27 | 2022-06-15 | Skybest Electric Appliance (Suzhou) Co., Ltd. | Staubsauger mit selbstreinigender funktion und selbstreinigungsverfahren dafür |
JP6978390B2 (ja) * | 2018-08-31 | 2021-12-08 | 日立グローバルライフソリューションズ株式会社 | 電気掃除機 |
DE102019117920A1 (de) * | 2019-07-03 | 2021-01-07 | Alfred Kärcher SE & Co. KG | Saugvorrichtung und Verfahren zur Abreinigung eines Filters |
EP4052629A1 (de) * | 2021-03-03 | 2022-09-07 | Hilti Aktiengesellschaft | Belüftungseinheit für ein sauggerät, verfahren zum belüften eines sauggeräts, sauggerät und verwendung eines luftstroms zur abreinigung eines filters des sauggeräts |
WO2022247353A1 (zh) * | 2021-05-24 | 2022-12-01 | 蔡亮 | 转换阀和吸尘器 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2410293A (en) * | 1943-08-07 | 1946-10-29 | Hoover Co | Suction cleaner |
EP0144470B1 (de) * | 1983-11-04 | 1988-04-13 | Kabushiki Kaisha Suiden | Staubsauger |
CN2039957U (zh) * | 1988-09-10 | 1989-06-28 | 天津市铁合金厂 | 大布袋除尘器清灰装置 |
US5347809A (en) | 1993-03-12 | 1994-09-20 | Caterpillar Inc. | Apparatus and method for removing particulate from an exhaust gas filter |
JP3678950B2 (ja) * | 1999-09-03 | 2005-08-03 | Smc株式会社 | 真空発生用ユニット |
DE10101219C9 (de) | 2001-01-12 | 2018-05-17 | Nilfisk-Advance A/S | Schmutzsauger |
US7082640B2 (en) | 2003-07-18 | 2006-08-01 | Christy, Inc. | Ambient air backflushed filter vacuum |
DE102004056076A1 (de) | 2004-11-12 | 2006-05-18 | Alfred Kärcher Gmbh & Co. Kg | Staubsauger sowie Zyklonabscheidevorrichtung und Zyklon für einen Staubsauger |
DE102005017568B4 (de) * | 2005-04-11 | 2024-04-25 | Alfred Kärcher SE & Co. KG | Saugreinigungsgerät |
DE102005017702A1 (de) * | 2005-04-11 | 2006-10-12 | Alfred Kärcher Gmbh & Co. Kg | Verfahren zum Abreinigen der Filter eines Staubsaugers sowie Staubsauger zur Durchführung des Verfahrens |
JP3999791B2 (ja) * | 2005-07-21 | 2007-10-31 | 株式会社東芝 | 電気掃除機 |
DE102008047047B4 (de) * | 2008-09-13 | 2012-09-20 | Alto Deutschland Gmbh | Filterabreinigung in einem Schmutzsauger mit Klappenelement |
IT1398528B1 (it) * | 2010-02-24 | 2013-03-01 | Truglia | Motore ad elevato rendimento, con propulsione ad aria compressa o ad altro gas comprimibile. |
DE202010012821U1 (de) * | 2010-09-18 | 2010-12-16 | Nilfisk-Advance A/S | Filterabreinigung für Schmutzsauger mit externem Gebläse |
CN201996463U (zh) * | 2011-04-12 | 2011-10-05 | 江苏净威环保有限公司 | 一种工业高负压吸尘器 |
-
2013
- 2013-04-25 DE DE102013007183.6A patent/DE102013007183A1/de not_active Ceased
-
2014
- 2014-03-14 EP EP14716234.1A patent/EP2988642B1/de active Active
- 2014-03-14 WO PCT/EP2014/000710 patent/WO2014173481A1/de active Application Filing
- 2014-03-14 CN CN201480023735.4A patent/CN105142481B/zh active Active
- 2014-03-14 US US14/786,682 patent/US10470632B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2014173481A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN105142481B (zh) | 2017-09-08 |
DE102013007183A1 (de) | 2014-10-30 |
CN105142481A (zh) | 2015-12-09 |
US10470632B2 (en) | 2019-11-12 |
EP2988642B1 (de) | 2017-09-20 |
US20160150932A1 (en) | 2016-06-02 |
WO2014173481A1 (de) | 2014-10-30 |
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