EP2988642B1 - Suction cleaner with a dedusting control for the filter - Google Patents
Suction cleaner with a dedusting control for the filter Download PDFInfo
- Publication number
- EP2988642B1 EP2988642B1 EP14716234.1A EP14716234A EP2988642B1 EP 2988642 B1 EP2988642 B1 EP 2988642B1 EP 14716234 A EP14716234 A EP 14716234A EP 2988642 B1 EP2988642 B1 EP 2988642B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- chamber
- intermediate chamber
- filter
- vacuum cleaner
- 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.)
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- 238000004140 cleaning Methods 0.000 claims description 42
- 238000013022 venting Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000011045 prefiltration Methods 0.000 description 7
- 238000009423 ventilation Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
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- 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
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- 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
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- 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
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- 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 Abtheses horrung for the filter or the filter according to the preamble of claim 1.
- Abinstituts horrung is with the subject of DE 101 01 219 A1 become known, however, in which a vacuum cleaner is provided with a split filter and two valves 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.
- the invention is therefore based on the DE 101 01 219 A1 the object of a method for operating a vacuum cleaner and a vacuum cleaner with a cleaning control for one or more filters of a Educate dirt sucker so that the energy consumption of the valve rod (s) actuated 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 guaranteed.
- the invention is characterized by the technical teaching of claims 1 and.
- 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 mecanicsdian.
- 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.
- 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 area 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 in accordance with the required cleaning mode when the cleaning mode is switched on, thus providing 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.
- FIG. 1 In general, a vacuum cleaner is shown, which consists of a main filter 27 and an upstream prefilter 9. However, the invention is not limited thereto. It can also have two main filters 27, which are then each assigned a cleaning unit, as in the form of the cleaning unit 3 in FIG. 1 is shown.
- the invention is therefore not limited to cleaning off a single main filter 27.
- 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 from the suction mode after FIG. 1 after cleaning mode FIG. 2 is switched.
- the left opening 17 is open in the side wall 15, because the valve seat 20 is firmly seated on the valve disc 19 is lifted from the opening 17, while the opening 16 occlusive valve plate 21 is held under the action of a spring 22 in the closed position, so so that 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 13.
- 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 is seated (upstream) in front of the main filter 27 and after the prefilter 9 ,
- 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 19, 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. It is preferred if 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 37 in FIG FIG. 1 operates in the suction mode, 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 21.
- FIG. 2 illustrated Abtheses Kunststoffstrom 42, which partially leaves the outlet 36, but for the greater part as Abtheses Kunststoffstrom 42 abruptly flows through the pre-filter 9 from the opposite side, and impulsively cleanse it.
- the Abthesesstrom 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.
- FIG. 1 the oppositely directed forces are shown.
- 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 smaller 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 closing force is substantially increased 57 on the valve plate 19, because the negative pressure in the intermediate chamber 26 is omitted, and the solenoid 23 must - in comparison to the prior art - no longer apply such a strong lifting force, because the lifting force only the resistance must overcome 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.
- FIG. 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 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.
Description
Die Erfindung betrifft ein Verfahren zum Betrieb eines Schmutzsaugers mit Abreinigungssteuerung für den oder die Filter nach dem Oberbegriff des Patentanspruches 1. Eine solche Abreinigungssteuerung ist mit dem Gegenstand der
Demnach wird jedem abzureinigenden Filter (Filterhälfte) ein eigenes Umschaltventil zugeordnet.Accordingly, each filter to be cleaned off (filter half) is assigned its own switching valve.
Jedes Umschaltventil war elektromagnetisch angesteuert und bestand aus einem Hubmagneten, der eine Ventilstange betätigt, auf der zwei im Abstand voneinander angeordnete Ventilteller angeordnet waren.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.
In der einen Hubstellung war somit die Arbeitsstellung gegeben, was bedeutet, dass beide Filterhälften von Schmutzluft durchströmt sind.In one stroke position thus the working position was given, which means that both filter halves are traversed by dirty air.
Wurde hingegen ein Hubmagnet betätigt, wurde damit die Ventilstange angehoben und das Umschaltventil wurde in einen zweiten Schließzustand gebracht. In dieser Abreinigungsstellung wird die Druckluft der Turbine zur Durchströmung des abzureinigenden Filters in der entgegengesetzten Richtung im Vergleich zur Saugrichtung geführt, sodass der Filter mit hohem Druck durchspült wird und die dadurch aus den Filterporen abgesprengten Schmutzteilchen in den Schmutzbehälter hineinfallen.On the other hand, when a solenoid was actuated, the valve stem was raised and the change-over valve was brought into a second closed state. In this Abreinigungsstellung the compressed air of the turbine is passed to the flow through the filter to be cleaned in the opposite direction in comparison to the suction, so that the filter is flushed through with high pressure and thereby falling from the filter pores debris fall into the dirt container.
Nachteil bei dieser Anordnung ist, dass in der Abreinigungsstellung, wie beispielsweise in
Dadurch, dass gemäß den Pfeilen beim Bezugszeichen 31a in
In der
Auch hier besteht der Nachteil, dass durch die Einwirkung von Saugdruck auf dem sich in Schließstellung befindlichen Ventilteller der Antriebsmotor zur Betätigung der Ventilstange noch zusätzliche Kraft aufwenden muss, um das geschlossene Ventil in der Schließstellung entgegen dem in Öffnungsrichtung wirkenden Saugdruck zu halten.Again, there is the disadvantage that due to the action of suction pressure on the valve disc located in the closed position, the drive motor for actuating the valve rod still has to spend additional force to keep the closed valve in the closed position against the suction pressure acting in the opening direction.
Mit dem Gegenstand der
Der Erfindung liegt deshalb ausgehend von der
Zur Lösung der gestellten Aufgabe ist die Erfindung durch die technische Lehre der Ansprüche 1 und gekennzeichnet.To solve the problem, the invention is characterized by the technical teaching of claims 1 and.
Merkmal der Erfindung ist, dass in an sich bekannter Weise die beiden auf der gleichen Ventilstange sitzenden Ventilteller jeweils die Durchgangsöffnung einer Saugkammer abschließen, und dass sich luftführend in Schließverbindung zu der Saugkammer eine Zwischenkammer anschließt, die stromaufwärts des Hauptfilters angeordnet ist und von der Saugluft durchströmt ist, und dass im Bereich dieser Zwischenkammer eine Ventilanordnung angeordnet ist, die in der Abreinigungsstellung einen Druckausgleich zwischen der Druckkammer und der Zwischenkammer herstellt.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 Abreinigungsstellung.
Durch den erfindungsgemäß vorgesehenen Druckausgleich zwischen der Druckkammer und der Zwischenkammer wird gewährleistet, dass der schädliche Unterdruck in der Reinigungsstellung, der in Öffnungsrichtung auf die Ventilteller wirkt und der dem Hubmagneten entgegengerichtet ist, entfällt, weil die Zwischenkammer entlüftet wird und der Unterdruck aus dieser Zwischenkammer entfernt wird.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.
Zwar beschreibt die Erfindung als bevorzugtes Ausführungsbeispiel ein elektromagnetisch betätigtes Umschaltventil, dessen Betätigungsstange mit der Ventilanordnung zusammenwirkt, um die Betätigungskraft auf die Betätigungsstange zu minimieren. Darauf ist die Erfindung jedoch nicht beschränkt. Statt eines elektromagnetisch betätigten Umschaltventils mit einer Betätigungsstange können alle anderen, bekannten Antriebsysteme mit der Erfindung optimiert werden, in dem deren Betätigungskraft (und damit auch der Stromverbrauch) minimiert werden. Dies erfolgt nach der Lehre der Erfindung immer dadurch, dass das Antriebs- oder Betätigungssystem der Umschaltventilanordnung mit dem Ventilsystem des Schmutzsaugers so zusammenarbeitet, dass der im Filtersystem erzeugt Unterdruck zur Minimierung der Betätigungskraft der Umschaltventilanordnung verwendet wird. Demnach wirkt der im Filtersystem erzeugte Unterdruck stets entlastend auf das Antriebssystem der Umschaltventileinrichtung und minimiert deren Antriebsleistung. Die Minimierung der Antriebskraft für einen Hubmagneten ist demnach nur beispielhaft zu verstehen und schränkt den Schutzbereich der Erfindung nicht ein.Although 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. However, the invention is not limited thereto. Instead of an electromagnetically actuated reversing valve with an actuating rod, 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 Umschaltventilanordnung 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 Umschaltventilanordnung. Accordingly, the negative pressure generated in the filter system always relieves the drive system of Umschaltventileinrichtung 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.
Damit besteht der Vorteil, dass der - lediglich beispielhaft erwähnte - Hubmagnet nicht zusätzlich den auf den Ventilteller in der Zwischenkammer wirkenden Öffnungsdruck bewältigen muss, weil durch die Entlüftung der Zwischenkammer die Hubkraft des Hubmagneten nicht mehr zusätzlich diesen Öffnungsdruck bewältigen muss.This has the advantage that the - only exemplarily mentioned - solenoid does not have to additionally handle the acting on the valve disk in the intermediate chamber opening pressure, because by the venting of the intermediate chamber, the lifting force of the solenoid no longer has to handle this additional opening pressure.
Damit wird der Strombedarf des Hubmagneten oder einer anderen elektromagnetischen, elektropneumatischen oder mechanischen Steuereinrichtung oder einer gleich wirkenden Antriebseinrichtung wesentlich verringert.Thus, the power requirement of the solenoid or other electromagnetic, electropneumatic or mechanical control device or a drive device acting the same is substantially reduced.
Der weitere Vorteil besteht darin, dass trotz eines geringeren Strombedarfes und einer geringeren Antriebsleistung des Hubmagneten zuverlässig ein Flattern der Ventileinrichtung mit den beiden Ventiltellern auf der Ventilstange vermieden wird.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.
In der Abreinigungsstellung wird die Zwischenkammer in luftschlüssiger Verbindung mit der Druckkammer gebracht. Demnach wird in der Öffnungsstellung die sich stromabwärts an die Saugkammer anschließende Zwischenkammer entlüftet und damit ein Unterdruck aus dieser Zwischenkammer entfernt.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.
Dies wird mit einem dritten Ventil erreicht, das die Druckluft in die Zwischenkammer einlässt und somit beseitigt den dort herrschenden Unterdruck beseitigt, der der Hubbewegung des Hubmagneten entgegengesetzt wäre.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.
Für die Anordnung der dritten Ventilanordnung zur Entlüftung der Zwischenkammer im Reinigungsmodus gibt es verschiedene Ausführungsformen.For the arrangement of the third valve arrangement for venting the intermediate chamber in the cleaning mode, there are various embodiments.
In einer ersten Ausführungsform ist vorgesehen, dass das dritte Ventil zusammen auf der Ventilstange mit den beiden anderen Ventiltellern angeordnet ist, sodass bei einer Betätigung der Ventilstange für die beiden anderen Ventilteller auch gleichzeitig das dritte Ventil betätigt wird, welches die Belüftung der Zwischenkammer von der Druckkammer aus erreicht.In a first embodiment it is provided that 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.
Dies ist eine besonders einfache Ausführungsform, weil die dritte Ventilanordnung immer stets zwangsläufig mit den beiden anderen Ventilstangen und deren Bewegung gekoppelt ist, weil das dritte Ventil auf der gleichen Ventilstange wie die anderen Ventile sitzt.This is a particularly simple embodiment, because the third valve assembly is always necessarily coupled with the other two valve rods and their movement, because the third valve sits on the same valve rod as the other valves.
Hierbei wird es bevorzugt, wenn der Querschnitt des dritten Ventils kleiner ist als der Querschnitt des Ventiltellers, der für eine Schließbewegung am Einlass zwischen der Druckkammer und der Saugkammer sorgt.In this case, it is preferred if 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.
Wäre nämlich der Querschnitt nicht kleiner, dann könnte der genannte Ventilteller nicht zuverlässig schließen.If the cross section were not smaller, then said valve plate could not close reliably.
Daher ist es lösungsnotwendig, dass der Ventilquerschnitt des dritten Ventils kleiner ist als der Ventilquerschnitt des einen Ventiltellers, der zwischen der Druckkammer und der Saugkammer angeordnet ist.Therefore, it is necessary for the solution that the 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.
In einer zweiten Ausführungsform der vorliegenden Erfindung wird gezeigt, dass es nicht lösungsnotwendig ist, das dritte Ventil mit dem im Querschnitt kleiner ausgeführten Ventilteller auf der Ventilstange für die Betätigung der beiden anderen Ventilteller anzuordnen. Dieses dritte Ventil kann vollkommen eigenständig im Verbindungsbereich zwischen der Druckkammer und der Zwischenkammer angeordnet sein und beispielsweise das Oberteil der Druckkammer oder das Oberteil der Reinigungseinheit durchbrechen, um so bedarfsgestützt und entsprechend dem geforderten Reinigungsmodus zu öffnen, wenn der Reinigungsmodus eingeschaltet ist, um so eine luftschlüssige Verbindung zwischen der Druckkammer und der Zwischenkammer herzustellen.In a second embodiment of the present invention, it is shown that it is not necessary to solve the problem of arranging the third valve with the smaller valve cross-section valve plate on the valve rod for the actuation of the other two valve disc. This third valve can be arranged completely independently in the connection area 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 in accordance with the required cleaning mode when the cleaning mode is switched on, thus providing an air-tight Make connection between the pressure chamber and the intermediate chamber.
In einer dritten Ausführungsform kann es vorgesehen sein, dass das Entlüftungsventil als federbelastetes Rückschlagventil angeordnet ist, das erst dann entgegen der Kraft einer Feder öffnet, wenn in der Reinigungsstellung der Unterdruck in der Zwischenkammer stark ansteigt und gleichzeitig ebenfalls in der gegenüberliegenden Druckkammer der Ausströmdruck der Luft stark ansteigt.In a third embodiment, it may be provided that 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.
Dieser Druckunterschied führt dann zu einer Öffnung des federbelastet in Schließstellung gehaltenen Rückschlagventils.This pressure difference then leads to an opening of the spring-loaded in the closed position held check valve.
Der Erfindungsgegenstand der vorliegenden Erfindung ergibt sich nicht nur aus dem Gegenstand der einzelnen Patentansprüche, sondern auch aus der Kombination der einzelnen Patentansprüche untereinander.The subject of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims with each other.
Alle in den Unterlagen, einschließlich der Zusammenfassung offenbarten Angaben und Merkmale, insbesondere die in den Zeichnungen dargestellte räumliche Ausbildung, werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.All information and features disclosed in the documents, including the abstract, in particular the spatial design shown in the drawings, are claimed to be essential to the invention insofar as they are novel individually or in combination with respect to the prior art.
Im Folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert. Hierbei gehen aus den Zeichnungen und ihrer Beschreibung weitere erfindungswesentliche Merkmale und Vorteile der Erfindung hervor.In the following the invention will be explained in more detail with reference to drawings showing only one embodiment. Here are from the drawings and their description further features essential to the invention and advantages of the invention.
Es zeigen:
-
Figur 1 : schematisiert einen Querschnitt durch einen Schmutzsauger mit der Anordnung der Filterabreinigung eines Flachfilters im Saugmodus -
Figur 2 : die gleiche Darstellung wieFigur 1 im Reinigungsmodus -
Figur 3 : schematisiert die Gegenüberstellung der Kraft auf den Magnetanker bezüglich der Zeit bei der Umschaltung vom Saugmodus in den Reinigungsmodus
-
FIG. 1 : Schematically cross section through a vacuum cleaner with the arrangement of the filter cleaning a flat filter in the suction mode -
FIG. 2 : the same representation asFIG. 1 in cleaning mode -
FIG. 3 : schematizes the comparison of the force on the armature with respect to the time when switching from the suction mode to the cleaning mode
In
Demzufolge kann die Abreinigungsanordnung nach
Die Erfindung ist demnach nicht darauf beschränkt, einen einzigen Hauptfilter 27 abzureinigen.The invention is therefore not limited to cleaning off a single
Im gezeigten Ausführungsbeispiel besteht der Schmutzsauger im Wesentlichen aus einem den Schmutz aufnehmenden Behälter 1, der über seitliche Verschlüsse 2 mit einer darüber angeordneten Reinigungseinheit 3 lösbar verbunden ist. Auf der Reinigungseinheit 3 ist eine Haubeneinheit 4 lösbar angeordnet.In the exemplary embodiment shown, the vacuum cleaner essentially consists of a container 1 receiving the dirt, which can be detached via
Die schmutzbeladene Luft strömt in Pfeilrichtung 6 über den Einlass 5 in den Innenraum des Behälters 1 ein und strömt in Pfeilrichtung 8 gegen die Unterseite des als Flachfilter ausgebildeten Vorfilters 9 hinein, der mit einer umlaufenden Dichtung 11 in zwei zueinander beabstandeten Seitenwänden 14, 15 unterhalb der Reinigungseinheit 3 angeordnet ist. Statt eines Flachfilters können auch andere Filtertypen verwendet werden, wie zum Beispiel Rundfilter, Faltenfilter und dergleichen.The dirt-laden air flows in the direction of
Nach dem Durchströmen des Vorfilters 9 strömt die Luft in Pfeilrichtung 18 in die Saugkammer 12 ein, die durch die beiden voneinander beabstandeten Seitenwände 14, 15 in der Reinigungseinheit 3 gebildet ist, wobei die beiden Seitenwände 14, 15 jeweils von Öffnungen 16, 17 durchsetzt sind, die wahlweise von jeweils einem Ventilteller 19, 21 geschlossen werden, wenn der Schmutzsauger vom Saugmodus nach
Im gezeigten Saugmodus nach
Die Kraft der Feder 22 wird dadurch unterstützt, dass ein Unterdruck in der Saugkammer 12 im Vergleich zu der darüber liegenden Druckkammer 34 herrscht, sodass auch unter der Einwirkung des Überdrucks der Ventilteller 21 in seiner Schließstellung in der Öffnung 16 gehalten wird, und die Kraft der Feder 22 unterstützt. Gleichzeitig wird aber auch unter diesem Unterdruck, der auf den Ventilteller 21 ausgeübt wird und die Kraft der Feder 22 unterstützt, ein gleichfalls auf der Ventilstange 20 sitzendes drittes Ventil mit einem Ventilteller 37 gegen eine zugeordnete Auslassöffnung 38 gepresst, sodass diese Auslassöffnung 38 im Saugmodus verschlossen ist.The force of the
Im gezeigten Saugmodus strömt somit die aus der Saugkammer 12 in Pfeilrichtung 18 durch die Öffnung 17 abströmende Saugluft von oben her durch das Hauptfilter 27, welches als nicht abreinigbares Filter gezeigt ist. Im gezeigten Ausführungsbeispiel wird demnach nur das Vorfilter 9 mit der erfindungsgemäßen Abreinigungsvorrichtung abgereinigt.In the suction mode shown thus flows from the
Die Saugluft strömt demnach durch das Hauptfilter 27 und verlässt dieses in Pfeilrichtung 28, indem die Saugluft durch eine Reinluftkammer 29 strömt, die an der Ansaugseite der Turbine 30 angeordnet ist. Die Turbine saugt diese Luft in Pfeilrichtung 28 an, verdichtet diese und stößt diese unter hoher Druckaufprägung in Pfeilrichtung 31 in die darüber angeordnete Druckkammer 34 ein.The suction air thus flows through the
Die Druckkammer ist von der Reinigungseinheit 3 durch das Oberteil 13 abgeteilt.The pressure chamber is separated from the
Im Oberteil 13 ist die noch vorerst durch den Ventilteller 37 verschlossene Auslassöffnung 38 angeordnet. Die beiden Filter 9, 27 sind im Übrigen in den Durchlassbereichen einer Grundplatte 10 angeordnet, welche die Unterseite der Reinigungseinheit 3 ausgebildet.In the
Der Antriebsmotor der Turbine 30 wird durch zuströmende Kühlluft 32 gekühlt, die als Abluftstrom 33 ausgeblasen wird..The drive motor of the
Der Hubmagnet 23 ist in einer Halterung 25 an der Seitenwand 14 des Oberteils 13 gehalten.The
Die Luft in Pfeilrichtung 31 in die Druckkammer 34 einströmende verlässt einen Auslass 36 im Bereich der Haubeneinheit 4 in Pfeilrichtung 35.The air flowing in the direction of
Die mit dem dritten Ventilteller 37 zu entlüftende Zwischenkammer 26 wird durch die Seitenwand 15 gebildet, die bedarfsweise durch den Ventilteller 19 abgeschlossen ist und durch das Oberteil 13 der Reinigungseinheit 3. Die Zwischenkammer 26 sitzt (stromaufwärts) vor dem Hauptfilter 27 und nach dem Vorfilter 9.The
Die Zwischenkammer 26 wird durch eine Wandung der Grundplatte 10 nach unten hin luftdicht abgeschlossen.The
Im Reinigungsmodus wird der Hubmagnet 23 in Pfeilrichtung 24' in seine Öffnungsstellung betätigt und steht unter Strom, wobei er die Kraft der Feder 22 überwinden muss, um die Ventilstange 20 in die Verschiebungslage nach Pfeilrichtung 24' zu verschieben.In the cleaning mode, the
In diesem Fall würde der in der Zwischenkammer 26 herrschende Unterdruck dafür sorgen, dass der Unterdruck weiterhin auf den Ventilteller 19 einwirkt und diesen versucht, von seinem Ventilsitz an der Öffnung 17 abzuheben. Dementsprechend stark muss der Hubmagnet 23 ausgebildet sein, weil er einerseits die Kraft der Feder 22 überwinden muss und andererseits die Öffnungskraft, die auf den Ventilteller 19 wirkt, zusätzlich überwinden muss.In this case, the negative pressure prevailing in the
Aus diesem Grund mussten Hubmagnete 23 mit relativ hohem Strombedarf verwendet werden, um ein unerwünschtes Flattern der Ventilstange 20 und damit ein schlagweises Abheben des Ventiltellers 19 von der Öffnung 17 zu vermeiden.For this reason, lifting
Hier setzt die Erfindung ein, die vorsieht, dass in der in
Damit ist es nun nicht mehr notwendig, dass der Hubmagnet 23 eine starke Schließkraft in Pfeilrichtung 24' entfaltet, weil die Abreißkraft oder die Öffnungskraft auf den Ventilteller 19 durch die Belüftung der Zwischenkammer 26 entfällt. Es ist bevorzugt, wenn der Querschnitt 39 des Ventiltellers 37 des dritten Ventils kleiner ausgebildet ist als der luftwirksame Querschnitt des Ventiltellers 19, damit eine Öffnungskraft, die auf den Ventilteller 37 in
Der Querschnitt 39 des Ventiltellers 37 soll also wesentlich kleiner sein als der Querschnitt 40 des Ventiltellers 21.The cross section 39 of the valve disk 37 should therefore be substantially smaller than the cross section 40 of the valve disk 21.
Er soll aber andererseits so groß sein, dass eine nennenswerte Belüftung der Luft aus der Druckkammer 34 in Form des Luftstromes 43 für die Zwischenkammer 26 stattfindet, um den schädlichen Unterdruck, der in Öffnungsrichtung auf den Ventilteller 19 wirkt, von diesem zu entfernen. Damit wird die Zwischenkammer 26 im Reinigungsmodus belüftet.On the other hand, however, it should be so large that a significant ventilation of the air from the
Damit wird eine gewisse Kreislaufströmung von dem die Turbine 30 verlassenden Luftstrom in Pfeilrichtung 31 ermöglicht, weil von diesem Luftstrom ein Teilluftstrom 43 abgezweigt wird. Die Turbine läuft somit mindestens teilweise in einem Kreislaufluftstrom.This allows a certain circulation flow from the
Gleichzeitig führt der in Pfeilrichtung 31 die Turbine verlassende Luftstrom zu dem in
Es wird bevorzugt, wenn der Querschnitt 41 des Ventiltellers 19 etwa die gleiche Größe hat wie der Querschnitt 40 des Ventiltellers 21.It is preferred if the cross section 41 of the
In der
Gleichzeitig arbeitet die Feder 22 in Schließrichtung mit einer Schließkraft 54 auf die Ventilstange und hält somit den Ventilteller 21 in seiner Schließstellung, obwohl auf die andere Seite des Ventiltellers eine geringere Öffnungskraft 55 vonseiten des kleiner im Querschnitt ausgebildeten dritten Ventiltellers 37 einwirkt. Dies ist der Grund dafür, dass der Querschnitt des Ventiltellers 37 kleiner sein muss als der Querschnitt des Ventiltellers 21.At the same time, the
In der Reinigungsstellung arbeitet der Hubmagnet 23 in Pfeilrichtung 24', und mit Öffnen des Ventiltellers 37 wird die Zwischenkammer 26 vonseiten der Druckkammer mit dem Luftstrom 43 belüftet und entfernt so den Unterdruck vom Ventilteller 19.In the cleaning position of the
Damit wird die Schließkraft 57 auf den Ventilteller 19 wesentlich erhöht, weil der Unterdruck in der Zwischenkammer 26 entfallen ist, und der Hubmagnet 23 muss - im Vergleich zum Stand der Technik - nicht mehr eine so starke Hubkraft aufbringen, weil die Hubkraft nur noch den Widerstand der Feder 22 überwinden muss. Damit kann der Hubmagnet mit geringerer elektrischer Leistung ausgebildet sein, und erreicht eine gleiche Betätigungskraft, wie die zum Stand der Technik gehörenden Hubmagneten.Thus, the closing force is substantially increased 57 on the
Auf der Ordinate ist die Kraft des Magnetankers des Hubmagneten 23 angegeben, der etwa dem Stromverbrauch des Hubmagneten entspricht, während auf der Abszisse die Zeit angegeben ist.On the ordinate, the force of the magnet armature of the lifting
Bei Position 46 beginnt der Reinigungszyklus, wobei der Hubmagnet schlagartig in Pfeilrichtung 24' angesteuert wird.At
Wenn nun keine Entlüftung der Zwischenkammer 26 stattfindet, würde der Magnetanker eine Kraft bis zur Position 47 benötigen, um dann in dieser Halteposition bis zur Position 48 die Abreinigung vorzunehmen. Nach Abschaltung des Stroms auf den Hubmagneten 23 würde dann die Kurve von Position 48 zu Position 49 verlaufen.Now, if no venting of the
Wird hingegen die Zwischenkammer 26 belüftet, dann muss nur noch eine Hubmagnetkraft von Position 46 zu Position 50 aufgebracht werden, und von Position 50 bis zur Position 51 erfolgt die Abreinigung mit wesentlich geringerer Kraft des Hubmagneten und endet bei Position 49 wieder.If, on the other hand, the
Der Unterschied zwischen den beiden Positionen 50, 47 ist die erfindungsgemäße Krafteinsparung 52 am Hubmagneten, welche durch die erfindungsgemäße Belüftung der Zwischenkammer 26 im Reinigungsmodus erreicht wurde.The difference between the two
Durch die Anordnung des dritten Ventils werden stabile Schließ- und Öffnungsstellungen der Ventileinrichtung erreicht und ein Flattern der Ventileinrichtung - wie beim Stand der Technik bekannt - kann somit zuverlässig vermieden werden.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.
- 11
- Behältercontainer
- 22
- Verschlussshutter
- 33
- Reinigungseinheitcleaning unit
- 44
- Haubeneinheithood unit
- 55
- Einlassinlet
- 66
- Pfeilrichtungarrow
- 77
- Schwenkachseswivel axis
- 88th
- Pfeilrichtungarrow
- 99
- Vorfilterprefilter
- 1010
- Grundplatte (von 3)Base plate (from 3)
- 1111
- Dichtung (von 9)Seal (of 9)
- 1212
- Saugkammersuction chamber
- 1313
- Oberteiltop
- 1414
- SeitenwandSide wall
- 1515
- SeitenwandSide wall
- 1616
- Öffnung (in 15)Opening (in 15)
- 1717
- Öffnung (in 15)Opening (in 15)
- 1818
- Pfeilrichtungarrow
- 1919
- Ventilteller (links)Valve disc (left)
- 2020
- Ventilstangevalve rod
- 2121
- Ventilteller (rechts)Valve disc (right)
- 2222
- Federfeather
- 2323
- Hubmagnetsolenoid
- 2424
- Pfeilrichtungarrow
- 2525
- Halterungbracket
- 2626
- Zwischenkammerintermediate chamber
- 2727
- Hauptfiltermain filter
- 2828
- Pfeilrichtungarrow
- 2929
- ReinluftkammerClean air chamber
- 3030
- Turbineturbine
- 3131
- Pfeilrichtungarrow
- 3232
- Kühlluft (zu)Cooling air (closed)
- 3333
- Abluftstromexhaust air flow
- 3434
- Druckkammerpressure chamber
- 3535
- Pfeilrichtungarrow
- 3636
- Auslassoutlet
- 3737
- Ventiltellervalve disc
- 3838
- Auslassöffnungoutlet
- 3939
- Querschnitt (von 37)Cross section (from 37)
- 4040
- Querschnitt (von 21)Cross section (from 21)
- 4141
- Querschnitt (von 19)Cross section (from 19)
- 4242
- AbreinigungsluftstromAbreinigungsluftstrom
- 4343
- Luftstromairflow
- 4444
- 4545
- 4646
- Positionposition
- 4747
- Positionposition
- 4848
- Positionposition
- 4949
- Positionposition
- 5050
- Positionposition
- 5151
- Positionposition
- 5252
- Krafteinsparungpower saving
- 5353
- Öffnungskraft (auf 37)Opening force (on 37)
- 5454
- Schließkraft (auf 21)Closing force (on 21)
- 5555
- Öffnungskraft (auf 21)Opening force (on 21)
- 5656
- Schließkraft (auf 37)Closing force (on 37)
- 5757
- Schließkraft (auf 19)Closing force (on 19)
Claims (8)
- Method for operation of a vacuum cleaner, in which in the filter cleaning position controlled by a switching valve arrangement (19, 20, 21) at least one filter (9) through which the stream of air laden with dirt flows is cleaned in the opposite direction to this stream of air, and the suction air laden with dirt from the dirt collecting container (1) flows firstly through the at least one filter (9) which is adjoined in the flow direction by a suction chamber (12) which is adjoined downstream by an intermediate chamber (26) which is arranged on the suction side of the turbine (30), and arranged downstream of the turbine (30) there is a high pressure chamber (34), wherein to reduce the actuating force of the switching valve arrangement (19, 20, 21) in the cleaning position of the vacuum cleaner an equalisation of pressure takes place between the high pressure chamber (34) and the intermediate chamber (26), characterised in that the equalisation of pressure is effected by a valve (37, 39) which lets the high pressure air produced by the turbine (30) into the intermediate chamber (26) and eliminates the vacuum which prevails there and opposes the lifting movement of a lifting magnet (23).
- Vacuum cleaner with filter cleaning control, in which in the cleaning position at least one filter (9) through which the stream of air laden with dirt flows is cleaned in the opposite direction to this stream of air, and the at least one filter (9) is associated with at least one switching valve (19, 20, 21) which is actuated electromagnetically by means of a lifting magnet (23) and switches over sharply in the cleaning position; and the suction air from the dirt collecting container (1) flows firstly through the at least one filter (9) which is adjoined in the flow direction by a suction chamber (12) having at least two openings (16, 17), and the two openings (16, 17) can be closed optionally by the switching valve (19, 20, 21), wherein arranged downstream of the suction chamber (12) there is an adjoining intermediate chamber (26) which is arranged on the suction side of the turbine (30), and a high pressure chamber (34) is arranged downstream of the turbine (30), wherein to reduce the actuating force of the switching valve arrangement (19, 20, 21) in the cleaning position of the vacuum cleaner an equalisation of pressure takes place between the high pressure chamber (34) and the intermediate chamber (26) through a valve arrangement (37, 39), characterised in that the equalisation of pressure is effected by the valve arrangement (37, 39) which lets the high pressure air produced by the turbine (30) into the intermediate chamber (26) and eliminates the vacuum which prevails there and opposes the lifting movement of the lifting magnet (23).
- Vacuum cleaner according to claim 2, characterised in that the valve head (37) of the valve arrangement (37, 39) for the venting of the intermediate chamber can be actuated together with the switching valve (19, 20, 21) and is subject to the action of the same drive.
- Vacuum cleaner according to claim 3, characterised in that the valve head (37) of the valve arrangement (37, 39) for the venting of the intermediate chamber is arranged on the valve rod (20) for actuation of the switching valve (19, 20, 21).
- Vacuum cleaner according to claim 2, characterised in that the valve arrangement (37, 39) for the venting of the intermediate chamber (26) is actuated separately from the drive of the switching valve (19, 20, 21).
- Vacuum cleaner according to one of claims 2 to 5, characterised in that the cross-section (39) of the valve head (37) of the valve arrangement (37, 39) for the venting of the intermediate chamber (26) is smaller than the cross-section (40) of the valve head (21) which ensures a closing movement at the inlet between the high pressure chamber (34) and the suction chamber (12).
- Vacuum cleaner according to one of claims 2 to 6, characterised in that with regard to the switching valve (19, 20, 21) the cross-section (41) of the valve head (19) which ensures a closing movement at the inlet between the suction chamber (12) and the intermediate chamber (26), is roughly the same size as the cross-section (40) of the valve head (21) which ensures a closing movement at the inlet between the high pressure chamber (34) and the suction chamber (12).
- Vacuum cleaner according to claim 2, characterised in that the valve arrangement (37, 39) is a spring-loaded non-return valve.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013007183.6A DE102013007183A1 (en) | 2013-04-25 | 2013-04-25 | Vacuum cleaner with cleaning control for the filter or filters |
PCT/EP2014/000710 WO2014173481A1 (en) | 2013-04-25 | 2014-03-14 | Suction-type cleaner with dedusting control for the filter or the filters |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2988642A1 EP2988642A1 (en) | 2016-03-02 |
EP2988642B1 true EP2988642B1 (en) | 2017-09-20 |
Family
ID=50473250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14716234.1A Active EP2988642B1 (en) | 2013-04-25 | 2014-03-14 | Suction cleaner with a dedusting control for the filter |
Country Status (5)
Country | Link |
---|---|
US (1) | US10470632B2 (en) |
EP (1) | EP2988642B1 (en) |
CN (1) | CN105142481B (en) |
DE (1) | DE102013007183A1 (en) |
WO (1) | WO2014173481A1 (en) |
Families Citing this family (9)
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DE102016100780A1 (en) * | 2016-01-19 | 2017-07-20 | Festool Gmbh | suction device |
AU2016400021B2 (en) * | 2016-03-30 | 2022-07-14 | Husqvarna Ab | A relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector |
DK3238592T3 (en) * | 2016-04-27 | 2021-07-19 | Diversey Inc | VACUUM CLEANER |
GB201700637D0 (en) | 2017-01-13 | 2017-03-01 | Black & Decker Inc | Dust collection box |
EP3586710B1 (en) * | 2017-02-27 | 2022-06-15 | Skybest Electric Appliance (Suzhou) Co., Ltd. | Vacuum cleaner having self-cleaning function and self-cleaning method therefor |
JP6978390B2 (en) * | 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 | Vacuum cleaner |
DE102019117920A1 (en) * | 2019-07-03 | 2021-01-07 | Alfred Kärcher SE & Co. KG | Suction device and method for cleaning a filter |
EP4052629A1 (en) * | 2021-03-03 | 2022-09-07 | Hilti Aktiengesellschaft | Ventilation unit for a suction device, method for ventilating a suction device, suction device and use of an air flow for cleaning a filter of the suction device |
WO2022247353A1 (en) * | 2021-05-24 | 2022-12-01 | 蔡亮 | Change-over valve and vacuum cleaner |
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US2410293A (en) * | 1943-08-07 | 1946-10-29 | Hoover Co | Suction cleaner |
DE3376250D1 (en) * | 1983-11-04 | 1988-05-19 | Suiden Kk | Vacuum cleaners |
CN2039957U (en) * | 1988-09-10 | 1989-06-28 | 天津市铁合金厂 | Dust remover of large-bag dust trap |
US5347809A (en) | 1993-03-12 | 1994-09-20 | Caterpillar Inc. | Apparatus and method for removing particulate from an exhaust gas filter |
JP3678950B2 (en) * | 1999-09-03 | 2005-08-03 | Smc株式会社 | Vacuum generation unit |
DE10101219C9 (en) | 2001-01-12 | 2018-05-17 | Nilfisk-Advance A/S | A vacuum cleaner |
US7082640B2 (en) | 2003-07-18 | 2006-08-01 | Christy, Inc. | Ambient air backflushed filter vacuum |
DE102004056076A1 (en) | 2004-11-12 | 2006-05-18 | Alfred Kärcher Gmbh & Co. Kg | Vacuum cleaner and Zyklonabscheidevorrichtung and cyclone for a vacuum cleaner |
DE102005017702A1 (en) * | 2005-04-11 | 2006-10-12 | Alfred Kärcher Gmbh & Co. Kg | Method for cleaning the filter of a vacuum cleaner and vacuum cleaner for carrying out the method |
DE102005017568B4 (en) * | 2005-04-11 | 2024-04-25 | Alfred Kärcher SE & Co. KG | Vacuum cleaner |
JP3999791B2 (en) * | 2005-07-21 | 2007-10-31 | 株式会社東芝 | Electric vacuum cleaner |
DE102008047047B4 (en) * | 2008-09-13 | 2012-09-20 | Alto Deutschland Gmbh | Filter cleaning in a vacuum cleaner with flap element |
IT1398528B1 (en) * | 2010-02-24 | 2013-03-01 | Truglia | HIGH PERFORMANCE ENGINE, WITH COMPRESSED AIR PROPULSION OR OTHER COMPRESSIBLE GAS. |
DE202010012821U1 (en) | 2010-09-18 | 2010-12-16 | Nilfisk-Advance A/S | Filter cleaning for vacuum cleaner with external fan |
CN201996463U (en) * | 2011-04-12 | 2011-10-05 | 江苏净威环保有限公司 | Industrial high-negative pressure dust collector |
-
2013
- 2013-04-25 DE DE102013007183.6A patent/DE102013007183A1/en not_active Ceased
-
2014
- 2014-03-14 CN CN201480023735.4A patent/CN105142481B/en active Active
- 2014-03-14 US US14/786,682 patent/US10470632B2/en active Active
- 2014-03-14 WO PCT/EP2014/000710 patent/WO2014173481A1/en active Application Filing
- 2014-03-14 EP EP14716234.1A patent/EP2988642B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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CN105142481A (en) | 2015-12-09 |
CN105142481B (en) | 2017-09-08 |
US10470632B2 (en) | 2019-11-12 |
WO2014173481A1 (en) | 2014-10-30 |
EP2988642A1 (en) | 2016-03-02 |
US20160150932A1 (en) | 2016-06-02 |
DE102013007183A1 (en) | 2014-10-30 |
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