WO2024218364A2 - Appareil d'aspiration - Google Patents

Appareil d'aspiration Download PDF

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Publication number
WO2024218364A2
WO2024218364A2 PCT/EP2024/060834 EP2024060834W WO2024218364A2 WO 2024218364 A2 WO2024218364 A2 WO 2024218364A2 EP 2024060834 W EP2024060834 W EP 2024060834W WO 2024218364 A2 WO2024218364 A2 WO 2024218364A2
Authority
WO
WIPO (PCT)
Prior art keywords
suction
suction device
opening
filter housing
dirt
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.)
Ceased
Application number
PCT/EP2024/060834
Other languages
German (de)
English (en)
Other versions
WO2024218364A3 (fr
Inventor
Cedomir Repac
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.)
Genius GmbH
Excellent Market Ltd
Original Assignee
Genius GmbH
Excellent Market Ltd
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 Genius GmbH, Excellent Market Ltd filed Critical Genius GmbH
Publication of WO2024218364A2 publication Critical patent/WO2024218364A2/fr
Publication of WO2024218364A3 publication Critical patent/WO2024218364A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/24—Hand-supported suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • 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
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0019—Details of the casing
    • 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
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0023—Recovery tanks
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/281—Parameters or conditions being sensed the amount or condition of incoming dirt or dust
    • 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
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user

Definitions

  • the invention relates to a suction device which has a dirt intake opening through which air and dirt can be sucked into the suction device from outside, and which has a clean air outlet opening through which filtered air flows out, wherein the dirt intake opening is formed on a suction part which has a liquid separator or is designed as a liquid separator and which is detachably coupled to a drive part which has a fan and the clean air outlet opening.
  • Vacuum cleaners can pick up dust or dry dirt from smooth and rough surfaces. Smaller vacuum cleaners, often battery-operated, are often used as table vacuum cleaners and to vacuum up minor local dirt.
  • a vacuum cleaner of the type mentioned at the outset which has a housing and a blower arrangement which is designed to generate an air flow.
  • a removable dirt container can be mounted on the housing.
  • the dirt container has a dirty air inlet which is in fluid communication with the blower arrangement.
  • a filter serves to separate dirt from the air flow, wherein the filter is mounted between the dirt container and the blower arrangement.
  • the housing comprises at least one air outlet for discharging clean air from the blower arrangement.
  • the removable dirt container has a protruding lip which is arranged such that it overlaps the air outlet and directs the air flow away from the dirty air inlet.
  • a suction device which is characterized in that the suction power is variable, wherein two suction power levels are provided, namely a dry cleaning suction level for sucking in exclusively dry dirt and a wet cleaning suction level for sucking in liquid or sucking in a, in particular dirty, mixture of air and liquid.
  • the suction device according to the invention has the very special advantage that not only dry suction material can be sucked in, but also liquids, for example drinks accidentally spilled on the table, whereby it is advantageously also possible to suck in solid dirt particles, such as bread crumbs, together with the liquid.
  • the invention also makes it possible, for example, to remove the mixture of mud, stones and water that is left on the floor when a house is cleaned with wet, dirty shoes are entered.
  • any liquid (depending on the type of contamination to be removed) contained in the sucked-in fluid flow is separated (at least for the most part) from the fluid flow by means of the liquid separator.
  • the term liquid separator refers to a device that separates liquid from a fluid flow and/or ensures that separated liquid remains separated from the fluid flow.
  • the liquid separator also has the task of ensuring that as little liquid as possible gets into an air filter downstream of the liquid separator in the fluid flow, in particular a suspended matter filter, especially a HEPA filter, and/or into a fan downstream of the liquid separator in the fluid flow and/or is expelled through the clean air outlet opening.
  • the liquid separator can have several liquid separator stages, which are preferably connected in series.
  • the liquid separator can consist of several liquid separator components, which, due to their nature and/or their arrangement, help to separate liquid from the fluid flow and/or to keep liquid that has already been separated separated from the fluid flow.
  • at least one of the liquid separator components it is advantageously possible for at least one of the liquid separator components to be formed by a component of the suction device, which in addition to being part of the liquid separator also has at least one other function.
  • Such a design requires very few components and can therefore be designed to be particularly compact and easy to handle.
  • the liquid separator can advantageously also be designed to separate not only liquid but also dirt particles that exceed a certain size and/or a certain mass from the fluid flow.
  • This can advantageously be dirt particles that have a diameter of more than 0.5 mm or more than 1 mm or more than 2 mm and/or that have a mass of more than 1 mg or more than 2 mg.
  • the liquid separator can be designed to separate dirt particles from the fluid flow that accumulate on a dining table, such as cornflakes, oat flakes, bread crumbs and the like, and/or to separate dirt particles from the fluid flow that accumulate on a floor, such as grit, pebbles, sand or the like.
  • the suction device according to the invention has the further very special advantage that it can consist essentially of two components (apart from possible accessories, such as special suction attachments), namely the suction part and the drive part, which enables simple and quickly learned use.
  • the suction device according to the invention can be made very compact, whereby in a particularly advantageous manner it is possible to design it as a hand-held device that can be used with one hand.
  • the suction part preferably has a suction part housing.
  • the suction part has a receiving space for dirt (in particular for larger dirt particles such as bread crumbs, stones and the like) and sucked-in liquid.
  • the receiving space can advantageously be formed at least partially by at least a part of the suction part housing.
  • a design in which the suction part, in particular adjacent to the dirt suction opening, has a receiving space for dirt and sucked-in liquid, is particularly advantageous because, among other things, the suction device is usually held at an angle during suction operation (apart from cleaning ceilings, walls or windows) and with the suction part pointing downwards, so that sucked-in protective particles and liquid only have to be lifted against the force of gravity for a short distance by means of the fluid flow before they reach the receiving space.
  • the dirt suction opening is the opening of the suction part which is designed to be brought directly close to the surface on which and/or on which the dirt and/or liquid to be sucked in is located.
  • a dirt suction opening edge surrounding the dirt suction opening is brought directly close to the surface or into contact with the surface on which and/or on which the dirt and/or liquid to be sucked in is located.
  • an attachment for example a suction nozzle, a wiping nozzle or a brush nozzle, to the dirt suction opening in order to carry out special cleaning tasks.
  • the emptying opening is arranged next to the dirt intake opening. This is particularly advantageous because the vacuum cleaner is usually held at an angle during suction operation and with the dirt intake opening pointing downwards, so that the user does not have to change the orientation for emptying
  • the receiving space can advantageously have an automatically operating closure device which opens or closes the container depending on the current orientation of the suction device and/or depending on the operating state of the suction device.
  • the closure device can be designed to provide access to the receiving space depending on the direction of the
  • the closing device is designed to open or close the receiving chamber by means of a weight force acting on the weight body of the closing device. This advantageously ensures that the receiving chamber is closed automatically when the user aligns the suction device in such a way that liquid would leak out of the receiving chamber through the receiving chamber access.
  • the closing device it is also possible, for example, for the closing device to have a spring-loaded and/or elastic closing flap which opens automatically when the suction device is in operation due to the fluid flow and closes automatically when the suction device is switched off.
  • the closure device has the particular advantage that sucked-in liquid remains in the receiving space and in particular does not enter an air filter, in particular a suspended matter filter, especially a HEPA filter, arranged downstream of the liquid separator in the fluid flow and/or a fan or is expelled through the clean air outlet opening.
  • an air filter in particular a suspended matter filter, especially a HEPA filter, arranged downstream of the liquid separator in the fluid flow and/or a fan or is expelled through the clean air outlet opening.
  • the receiving space is formed by a container arranged in the suction part housing.
  • This design is particularly reliable because any liquid that may leak out of the container (despite all measures to prevent this) does not leak out, but only into the suction part housing.
  • the container has an automatically operating closure device that opens or closes the container depending on the current orientation of the suction device.
  • the closure device can be designed to open or close a receiving space access designed as a container access depending on the direction of the weight force acting on a closure device weight body. In this way, it is advantageously achieved that the container is automatically closed if the user aligns the suction device in such a way that liquid would leak out of the container through the container access.
  • the closure device may have a spring-loaded and/or elastic closure flap that opens automatically due to the fluid flow when the suction device is in operation and closes automatically when the suction device is switched off. This prevents dirt particles and/or liquid that have been sucked in from escaping through the suction pipe, particularly when the vacuum cleaner is switched off.
  • the suction part has a suction part outlet opening through which air can flow into the drive part.
  • the suction part outlet opening is automatically arranged opposite a drive part inlet opening when the suction part is coupled to the drive part.
  • the suction part has an emptying opening through which dirt and sucked-in liquid can be removed from the suction part.
  • the emptying opening is not formed by the suction part outlet opening, but rather preferably a separate opening in the suction part housing.
  • the drain opening is preferably arranged outside the fluid flow.
  • a drain opening closure by means of which the drain opening can be closed, and in particular the seals of the drain opening closure, are not stressed by the fluid flow. In particular, this advantageously prevents liquid and/or air from being accidentally pushed out past the seal of the drain opening closure due to the effect of the fluid flow.
  • the emptying opening is arranged adjacent to the dirt suction opening.
  • the emptying opening can be arranged at the end of the preferably elongated suction part on which the dirt suction opening is also arranged.
  • the emptying opening closure by means of which the emptying opening can be closed in a liquid-tight manner.
  • the emptying opening closure can be designed as a flap, for example.
  • the flap is mounted by means of a hinge in such a way that it is pulled into an open position by the force of weight when the suction device (such as in suction mode) is held at an angle and with the dirt intake opening pointing downwards.
  • the suction device such as in suction mode
  • the user only has to unlock the flap for an emptying process, so that it then automatically falls into the open position.
  • the emptying opening closure can alternatively be designed, for example, as a screw cap or as a snap-in cap.
  • the drain opening closure is designed to be operated without tools.
  • the drain opening closure can be a flap pivoted on a hinge with a seal running around the edge and a spring-loaded latch, whereby the latch automatically engages in a locking position when the flap is pushed into the closed position.
  • the user can slide the latch against the spring force in an opening position, thereby releasing the flap to open.
  • the suction part is elongated, in particular cylindrical.
  • the suction part has the dirt suction opening at one end and the suction part outlet opening at its other end.
  • the suction part is coupled to the drive part in a way that is detachable without tools and without destruction, or can be coupled to the drive part.
  • the suction part is releasably coupled to the drive part or can be coupled to the drive part by means of a coupling device.
  • the coupling device can have at least one coupling element arranged on the suction part, in particular on the suction part housing of the suction part, and at least one counter-coupling element arranged on the drive part, in particular on a drive part housing of the drive part.
  • the coupling element and the counter-coupling element can be mechanically and/or magnetically connected when the suction part is coupled to the drive part.
  • the coupling element can, for example, have a locking recess or a locking opening, in particular in the suction part housing, into which a locking projection of the drive part engages when the suction part is coupled to the drive part.
  • the counter-coupling element can have a locking recess or a locking opening, in particular in the drive part housing, into which a locking projection of the suction part engages when the suction part is coupled to the drive part.
  • the coupling element can advantageously be arranged as a component of the suction part in the region of the suction part outlet opening, while the counter-coupling element can be arranged as a component of the drive part in the region of a drive part inlet opening.
  • the counter-coupling element on the drive part is designed to be remotely controlled.
  • a release button can be provided, particularly in the area of a handle on the drive part, which is mechanically connected to the Counter coupling element is coupled.
  • the user can release the locking of the coupling device by pressing the release button in order to be able to detach the suction part from the drive part.
  • the release button is located in the area of the handle, the user can continue to hold the suction device by the handle with one hand (as during a cleaning process) while removing the suction part from the drive part with the other hand. The user can then, for example, remove and clean a filter arranged in the suction part.
  • a filter housing is arranged in the suction part, which has a filter housing inlet opening and a filter housing outlet opening and which contains a filter, in particular a suspended matter filter, for removing dirt from the air flow.
  • a filter in particular a suspended matter filter
  • the filter for example in the form of a filter cartridge, is held in the filter housing by positive insertion.
  • the filter is designed as a reusable filter that can be reinserted into the vacuum cleaner after each filter cleaning process.
  • This has the particular advantage that the user does not have to replace the filter with a new one each time it becomes dirty.
  • the filter can be designed to be washable.
  • the filter is preferably also designed to remove dirt particles from the air stream after the liquid contained in the sucked-in fluid (or at least a large part of the liquid) and possibly larger dirt particles have already been removed by means of the liquid separator.
  • the filter can be designed as an EPA filter (Efficient Particulate Air Filter) or as a HEPA filter (High-Efficiency Particulate Air Filter).
  • the filter housing inlet opening is arranged adjacent to the suction part housing in such a way that a gap, in particular an annular gap, is formed between the edge of the filter housing inlet opening and the suction part housing.
  • the gap can advantageously have a gap width in the range from 1 mm to 10 mm, in particular in the range from 1 mm to 5 mm. Such a gap width is sufficient to suck in air, but at the same time very narrow to prevent liquid from being sucked into the filter housing together with the air.
  • This special arrangement of the filter housing inlet opening has the very special advantage that sucked-in liquid in the receiving space and in particular does not enter an air filter, in particular a HEPA filter, downstream of the liquid separator in the fluid flow and/or a fan or is expelled through the clean air outlet opening.
  • an air filter in particular a HEPA filter
  • a sieve in particular a stainless steel sieve, can be inserted into the filter housing inlet opening, in particular in a way that can be removed again non-destructively and/or without tools.
  • the filter housing or at least the part of the filter housing that has the filter housing inlet opening is arranged so that it can move relative to the suction part housing.
  • the suction device has an automatically operating alignment device that always automatically aligns the filter housing or at least the part of the filter housing that has the filter housing inlet opening in such a way that the filter housing inlet opening is directed upwards.
  • the alignment device can be designed in such a way that it aligns the filter housing or at least the part of the filter housing that has the filter housing inlet opening depending on the direction of the weight force acting on an alignment device weight body.
  • this design also has the very special advantage that sucked-in liquid remains in the receiving space and in particular does not enter an air filter, in particular a HEPA filter, connected downstream of the liquid separator in the fluid flow and/or a fan or is expelled through the clean air outlet opening.
  • the filter housing can have a filter housing cover that can be removed, in particular non-destructively and/or without tools, and which has the filter housing outlet opening.
  • the user can first insert the filter, in particular in the form of a filter cartridge, into the filter housing and then close the filter housing with the filter housing cover, wherein the filter housing cover can be designed in such a way that it secures the filter inserted into the filter housing in its position radially and/or axially.
  • the filter housing can then be inserted into the suction part housing, in particular through the suction part outlet opening, in particular in a form-fitting manner.
  • the filter housing is or can be inserted into the suction part housing in a form-fitting manner, in particular in a way that is removable again without tools and/or without destruction.
  • the filter housing is inserted into the suction part housing through the suction part outlet opening and can be removed again through the suction part outlet opening, for example for a cleaning process.
  • a suction pipe in particular a straight one, is arranged in the suction part, through which sucked-in dirt flows together with sucked-in air and/or liquid.
  • the suction pipe can have a suction pipe inlet opening and a suction pipe outlet opening.
  • the dirt suction opening is formed by the suction pipe inlet opening or that the suction pipe inlet opening is fluidically connected to the dirt suction opening.
  • all dirt sucked in through the dirt suction opening, all air sucked in through the dirt suction opening and all liquid sucked in through the dirt suction opening first passes through the suction pipe.
  • the suction pipe can advantageously be at least partially part of the liquid separator.
  • the liquid separator can have at least one labyrinth.
  • at least part of the labyrinth is formed by the arrangement of the suction pipe relative to the filter housing and/or by the arrangement of the suction pipe relative to the suction part housing.
  • At least part of the labyrinth is formed by the arrangement of the suction pipe relative to the suction part housing.
  • the formation of a labyrinth can be achieved by arranging the suction pipe and the filter housing axially and/or radially overlapping next to one another.
  • a labyrinth in particular such an axial and/or radial overlap of the suction pipe and the filter housing, can be achieved, for example, by the distance of the filter housing inlet opening to the dirt intake opening being smaller than the distance of the suction pipe outlet opening to the dirt intake opening, and/or by the distance of the filter housing inlet opening to the suction pipe inlet opening being smaller than the distance of the suction pipe outlet opening to the suction pipe inlet opening and/or by the distance of the filter housing inlet opening to the suction pipe inlet opening being smaller than the length of the suction pipe.
  • the distance of the suction pipe outlet opening to the drive part is smaller than the distance of the Filter housing inlet opening to the drive part, and/or that the distance of the intake manifold outlet opening to the filter housing outlet opening is smaller than the distance of the filter housing inlet opening to the filter housing outlet opening, and/or that the distance of the intake manifold outlet opening to the filter housing outlet opening is smaller than the length of the filter housing.
  • suction pipe ends freely in the suction part housing.
  • suction pipe ends freely in the suction part housing means that one end of the suction pipe, in particular the end of the suction pipe which has the suction pipe outlet opening, is arranged at a distance from the inner wall of the suction part. This advantageously ensures that sucked-in liquid which sloshes along an inner wall of the suction part when the suction device is moved cannot get back into the suction pipe. Rather, at least the majority of the liquid can at most get between the inner wall of the suction part and the suction pipe, which is not relevant with regard to the risk of the liquid accidentally escaping.
  • the inner wall of the suction part can be the inner wall of the suction part housing or the inner wall of a receiving space of the suction part arranged in the suction part housing or the inner wall of a container arranged in the suction part housing.
  • the feature that the suction pipe ends freely in the suction part housing is also advantageous if at least one additional means, for example a closure flap arranged at the end of the suction pipe, is present which counteracts the leakage of liquid, since the at least one additional means cannot generally prevent leakage 100%.
  • the wet-dry vacuum cleaner known from US 4,536,914 has the disadvantage that its closure flap is activated by the negative pressure in the suction part and is always open when the device is switched on, so that liquid can escape if the device is used overhead when it is switched on.
  • a filter housing is arranged in the suction part, which has a filter housing inlet opening and a filter housing outlet opening and which contains a filter for removing dirt from the air flow, wherein an end section of the filter housing, which has the filter housing inlet opening, ends freely in the suction part housing.
  • an end section of the filter housing, which has the filter housing inlet opening, ends freely in the suction part housing means that the end section of the filter housing, which has the filter housing inlet opening, is arranged at a distance from the suction part inner wall.
  • the inner wall of the suction part can, as already mentioned, be the inner wall of the suction part housing or the inner wall of a suction part receiving space arranged in the suction part housing or the inner wall of a container arranged in the suction part housing.
  • the wet-dry vacuum cleaner known from US 4 536 914 has the disadvantage that the liquid, for example when vacuuming the underside of a ceiling, gets directly into the air filter and through it into the fan.
  • the suction pipe in particular the end of the suction pipe which has the suction pipe outlet opening, ends freely in the suction part housing.
  • the suction pipe in particular the end of the suction pipe which has the suction pipe outlet opening, ends freely in the receiving space for the liquid and/or in the container.
  • the suction pipe outlet opening is arranged in the receiving space for dirt and sucked-in liquid or immediately adjacent to the receiving space for dirt and sucked-in liquid.
  • an impact surface can advantageously be arranged against which the sucked-in fluid and the sucked-in dirt collide.
  • the impact surface can, for example, be part of an outer surface of the filter housing.
  • the sucked-in liquid sticks to the impact surface and then drips off and remains in the receiving space.
  • Larger sucked-in dirt particles lose their kinetic energy by impacting the impact surface and also remain in the receiving space.
  • Sucked-in air and smaller dirt particles remain in the fluid flow and then preferably pass through a filter, in particular arranged in a filter housing, which removes the remaining dirt from the air. The air is then expelled from the suction device through the at least one clean air outlet opening.
  • the drive part is elongated, in particular at least partially cylindrical.
  • the drive part can have a main body and a handle, in particular arranged directly adjacent to the main body.
  • the main body can advantageously be elongated and/or be essentially cylindrical in shape.
  • the handle can be elongated and/or essentially cylindrical.
  • the handle has a free end. Such a design allows the suction device to be held and operated easily.
  • a version of the suction device in which the main body and the handle are arranged coaxially to each other is particularly easy and precise to use.
  • the drive part preferably has a drive part housing.
  • a fan, an energy storage device and a control device can be arranged in the drive part housing.
  • the drive part can have a drive part inlet opening at one end through which the fluid flow flows into the drive part when the suction device is in operation.
  • the drive part has the handle at the other end.
  • the suction device can advantageously be designed such that the suction part outlet opening is arranged directly adjacent to the drive part inlet opening when the suction part is coupled to the drive part. This enables the fluid flow, in particular the fluid flow of purified air, to flow from the suction part into the drive part through the suction part outlet opening and the drive part inlet opening during operation of the suction device.
  • the drive part includes a fan which has a motor and an impeller driven by the motor.
  • an impeller is understood to mean in particular a ring of blades (vanes, rotor blades) that are held on a shaft by means of a suitable fastening or are made in one piece with the shaft.
  • the impeller can have axial or radial flow.
  • an impeller chamber separate from a motor chamber, it is particularly advantageous to use an impeller that generates a radially outward-directed fluid flow.
  • the suction part does not contain any electrical components (or at most simple electrical components, such as simple sensors) and/or any components of the blower.
  • all electrical components and/or all components of the blower are arranged in the drive part.
  • the drive motor can advantageously be designed as a brushless electric motor.
  • the drive part has an impeller chamber in which the impeller is arranged.
  • the drive part has a motor chamber in which the motor is arranged, the impeller chamber and the motor chamber being chambers separated from one another by a partition.
  • This embodiment has the very special advantage that the motor can be arranged outside the fluid flow, which ensures that no liquid can reach the motor or other electrical components that are connected to the motor or to which the motor is connected. Only the drive shaft has to run through a partition arranged between the impeller chamber and the motor chamber, which is preferably sealed relative to the partition with a suitable shaft seal, in particular by means of a radial shaft seal or an axial shaft seal.
  • an electronic control device and/or an electrical energy storage device such as a battery, can also be arranged in the motor chamber.
  • the motor chamber is preferably arranged outside the fluid flow, particularly for the reasons mentioned above.
  • the impeller and the motor in different chambers is not without problems because the manufacturers of blowers strive to manufacture and deliver complete blower units in which the impeller is balanced relative to the motor.
  • at least part of the partition wall arranged between the impeller chamber and the motor chamber is formed by a motor shield of the drive motor.
  • a fitting opening, in particular a truncated cone can be present, in particular in a bearing shield forming part of the partition wall, into which the motor shield provided with a counter-fitting circumference is inserted with precision when assembling the suction device.
  • the impeller chamber is at least partially formed by a part of the drive part housing.
  • the impeller chamber can have at least one clean air outlet opening.
  • the suction power can be changed.
  • Two suction power levels are provided, namely a dry cleaning suction level for sucking up only dry dirt and a wet cleaning suction level for sucking up liquid or for sucking up a (dirty) mixture of air and liquid. It has been shown that a lower suction level is sufficient for sucking up liquid. This has the advantage that energy is saved and any energy storage device, such as a rechargeable battery, is emptied more slowly.
  • the wet cleaning suction level has the particular advantage that the risk of some of the sucked-in liquid getting into the air filter downstream of the liquid separator is reduced.
  • the electrical drive power of the drive motor in the dry cleaning suction stage is higher than in the wet cleaning suction stage.
  • the electrical drive power of the drive motor in the dry cleaning suction stage is two to four times, in particular three times, higher than in the wet cleaning suction stage.
  • the electrical drive power of the drive motor in the dry cleaning suction stage can be in the range from 100 W to 200 W, in particular 150 W, and/or the electrical drive power of the drive motor in the wet cleaning suction stage can be in the range from 25 W to 75 W, in particular 50 W.
  • the suction negative pressure in the dry cleaning suction stage is higher than in the wet cleaning suction stage.
  • the suction negative pressure in the dry cleaning suction stage can be higher by a factor of 1.5 to 2.5, in particular by a factor of 2, than in the wet cleaning suction stage.
  • the suction negative pressure in the dry cleaning suction stage is in the range from 12 kPa to 20 kPa, in particular 16 kPa.
  • the suction negative pressure in the wet cleaning suction stage is in the range from 6 kPa to 10 kPa, in particular 8 kPa.
  • a manually operated switching device is provided for switching between the suction power levels.
  • the Users can select the suction power level that is most suitable for the material to be vacuumed.
  • the user can select the dry cleaning suction level when only dry material is to be vacuumed.
  • the user can select the wet cleaning suction level.
  • the switching device can, for example, have a pivoting switching lever.
  • the switching device can also have a push button, whereby the suction power level is selected by the number of times the push button is pressed in succession.
  • the suction device is switched on in the dry cleaning suction level by pressing the push button once and is switched back to the wet cleaning suction level by pressing the push button again.
  • the suction device is switched off if the push button is subsequently pressed again.
  • an automatic switching device which automatically switches between the suction power levels.
  • the automatic switching device switches between the suction power levels depending on whether the fluid being sucked in contains a liquid.
  • Such an embodiment has the very special advantage that the user does not need to adjust the suction power level himself.
  • the user can switch off the automatic function if necessary in order to select the suction power level himself.
  • a liquid sensor can be present, for example, whereby the automatic switching device automatically switches from the dry cleaning suction stage to the wet cleaning suction stage as soon as the liquid sensor detects the suction of liquid and/or the presence of sucked-in liquid in the suction part.
  • the automatic switching device automatically switches from the wet cleaning suction stage to the dry cleaning suction stage if the liquid sensor does not detect any liquid.
  • the liquid sensor can be connected to an electronic control device that controls the motor of the fan depending on the sensor signal.
  • the electronic control device is wholly or partially a component of the automatic switching device.
  • the liquid sensor can be arranged, for example, in the area of the dirt intake opening or in the collection area. Such a design has the very special advantage that it can be determined immediately at the beginning of each suction process whether the sucked-in material contains liquid.
  • the liquid sensor can be arranged in the receiving space for, in particular, coarser dirt and sucked-in liquid.
  • the suction part and the drive part each have electrical contact elements which are designed and positioned in such a way that when the suction part is coupled to the drive part, an electrical contact is automatically established from a control device arranged in the drive part to the liquid sensor arranged in the suction part.
  • the liquid sensor prefferably be arranged in the drive part, for example in an impeller chamber in which an impeller that generates the fluid flow rotates.
  • Such a design has the very special advantage that supply lines, in particular electrical ones, that run inside the suction part to the liquid sensor can be dispensed with. In this way, it is particularly avoided that an electrical contact between the liquid sensor and the drive part has to be established when the suction part is coupled to the drive part.
  • the suction device prefferably has several liquid sensors that are located at different locations within the suction device. This type of design switches particularly reliably to the required suction power level.
  • the liquid sensor can, for example, be designed as an optical liquid sensor. This can, for example, have a light source, in particular an LED, and a light detector, in particular a photodiode, which are arranged relative to one another in such a way that a change in the refraction and/or reflection of the light from the light source caused by the presence of liquid causes a change in the light output arriving at the light sensor.
  • the liquid sensor can alternatively be based, for example, on measuring the electrical conductivity of the medium located between two electrodes.
  • the liquid sensor can alternatively be based, for example, on measuring an electrical capacitance between two, for example plate-shaped, electrodes, which naturally changes when a liquid penetrates into the space between the electrodes.
  • the suction device can only be switched from the wet cleaning suction stage back to the dry cleaning suction stage if the receiving space has previously been emptied.
  • the control device can detect the sensor signal of a sensor arranged in the receiving space. humidity sensor.
  • a sensor can be present at the drain opening that detects whether the drain opening closure has been opened.
  • the automatic switching device automatically switches between the suction power levels depending on the orientation of the suction device in the room.
  • the automatic switching device can contain a position sensor, in particular an acceleration sensor, by means of which the current orientation of the suction device can be determined.
  • the automatic switching device switches from the dry cleaning suction stage to the wet cleaning suction stage when it detects that the suction device is held by the user in such a way that the dirt suction opening is arranged above the drive part.
  • Such an orientation of the suction device is in fact an indication that the user is cleaning windows by sucking moisture off a window pane.
  • the suction device according to the invention can - according to an independent inventive concept, which can also be implemented independently of the other features mentioned here - have at least one additional suction part, which can be coupled to the drive part in exchange for the suction part.
  • the additional suction part can be different from the suction part.
  • the additional suction part can be a suction part that is specially designed for cleaning window panes.
  • the additional suction part can have an elastic squeegee lip.
  • the automatic switching device automatically selects the suction power level depending on which of the suction parts is currently coupled to the drive part. For example, it can advantageously be provided that the automatic switching device selects the wet cleaning suction level when a window cleaning suction part designed for window cleaning is coupled to the drive part. Furthermore, it can advantageously be provided - alternatively or additionally - that the automatic switching device selects the dry cleaning suction level when a suction part that is also suitable for pure dry cleaning (in particular in addition to wet cleaning) is coupled to the drive part.
  • At least one of the suction parts can have a switching element characteristic of the suction part, for example a switching projection, which interacts with a detector element of the drive part when the suction part is coupled to the drive part. is coupled. In this way, the user does not have to separately inform the control device which of the suction parts he has just coupled to the drive part.
  • a switching element characteristic of the suction part for example a switching projection
  • the suction device is designed and suitable to be held and operated exclusively with one hand, in particular on the handle, during a suction process.
  • the suction device can contain an electrical energy storage device, in particular a battery.
  • the suction device can be designed to be inserted into a charging station, whereby the electrical contacts required to charge the energy storage device are automatically closed.
  • the suction device is designed to be connected to a power supply for operation.
  • Suction device which has a dirt intake opening through which air and dirt can be sucked into the suction device from outside, and which has a clean air outlet opening through which filtered air flows out, wherein the dirt intake opening is formed on a suction part which is detachably coupled to a drive part which has a fan and the clean air outlet opening, characterized in that the suction part has a liquid separator or is designed as a liquid separator.
  • Suction device characterized in that the suction part has a suction part housing.
  • Suction device according to aspect 1 or 2, characterized in that the suction part has a receiving space for, in particular, coarser, dirt and sucked-in liquid.
  • Suction device according to aspects 2 and 3, characterized in that the receiving space is at least partially formed by at least a part of the suction part housing.
  • Suction device according to one of aspects 2 to 4, characterized in that the receiving space is formed by a container arranged in the suction part housing.
  • Suction device characterized in that the receiving space has an automatically operating closing device which opens or closes the receiving space depending on the current orientation of the suction device and/or depending on the operating state of the suction device. 7. Suction device according to aspect 6, characterized in that the closure device opens or closes a receiving space access depending on the direction of the weight force acting on a closure device weight body. . Suction device according to aspect 6, characterized in that the closure device has a spring-loaded and/or elastic closure flap which opens automatically when the suction device is in operation due to the fluid flow and closes automatically when the suction device is switched off. . Suction device according to one of aspects 1 to 8, characterized in that the suction part has a suction part outlet opening through which air can flow into the drive part.
  • Suction device according to one of aspects 1 to 9, characterized in that the suction part has an emptying opening through which dirt and sucked-in liquid can be removed from the suction part.
  • Suction device characterized in that the emptying opening is arranged outside the fluid flow.
  • Suction device characterized in that the emptying opening is arranged adjacent to the dirt suction opening and/or that the emptying opening is arranged at an end of the suction part at which the dirt suction opening is also arranged.
  • Suction device characterized in that an emptying opening closure is provided by means of which the emptying opening can be closed in a liquid-tight manner.
  • the emptying opening closure is designed as a flap.
  • the emptying opening closure is designed as a screw cap or as a snap-in cap.
  • Suction device according to one of aspects 13 to 15, characterized in that the emptying opening closure is designed to be operated without tools.
  • Suction device according to one of aspects 1 to 16, characterized in that the suction part is elongated, in particular cylindrical.
  • Suction device characterized in that the suction part has the dirt suction opening at one end and the suction part outlet opening at the other end.
  • Suction device according to one of aspects 1 to 18, characterized in that the suction part is coupled to the drive part in a detachable manner without tools and without destruction. 20. Suction device according to one of aspects 1 to 19, characterized in that the suction part is releasably coupled to the drive part by means of a coupling device.
  • Suction device characterized in that the coupling device has at least one coupling element arranged on the suction part, in particular on the suction part housing of the suction part, and at least one counter-coupling element arranged on the drive part, in particular on a drive part housing of the drive part.
  • Suction device characterized in that the coupling element and the counter-coupling element are mechanically and/or magnetically operatively connected when the suction part is coupled to the drive part.
  • Suction device according to aspect 21 or 22, characterized in that the coupling element is arranged in the region of the suction part outlet opening.
  • Suction device according to one of aspects 21 to 23, characterized in that the coupling element has a locking recess or a locking opening and that the counter-coupling element has a locking hook which engages in the locking recess or the locking opening when the suction part is coupled to the drive part.
  • Suction device characterized in that the counter-coupling element is designed to be remotely controlled.
  • Suction device characterized in that, in particular in the region of a handle of the drive part, a release button is provided which is mechanically coupled to the counter-coupling element.
  • Suction device characterized in that a filter housing is arranged in the suction part, which has a filter housing inlet opening and a filter housing outlet opening and which contains a filter for removing dirt from the air stream.
  • Suction device characterized in that the filter housing inlet opening is arranged adjacent to the suction part housing such that a gap, in particular an annular gap, is formed between the edge of the filter housing inlet opening and the suction part housing.
  • Suction device characterized in that the gap has a gap width in the range of 1 mm to 10 mm, in particular in the range of 1 mm to 5 mm.
  • Suction device according to one of aspects 27 to 29, characterized in that a sieve, in particular a stainless steel sieve, is inserted into the filter housing inlet opening, in particular so as to be removable again in a non-destructive manner and/or without tools.
  • a sieve in particular a stainless steel sieve
  • the filter housing or at least the part of the filter housing which has the filter housing inlet opening is arranged to be movable relative to the suction part housing.
  • Suction device characterized in that the suction device has an automatically operating alignment device which always automatically aligns the filter housing or at least the part of the filter housing which has the filter housing inlet opening such that the filter housing inlet opening is directed upwards.
  • Suction device according to aspect 32, characterized in that the alignment device aligns the filter housing or at least the part of the filter housing which has the filter housing inlet opening depending on the direction of the weight force acting on an alignment device weight body.
  • Suction device according to one of aspects 27 to 33, characterized in that the filter is designed as a suspended matter filter, in particular as a HEPA filter.
  • Suction device according to one of aspects 27 to 34, characterized in that the filter is inserted in a form-fitting manner into the filter housing.
  • Suction device according to one of aspects 27 to 35, characterized in that the filter can be removed again into the filter housing without destruction and/or without tools.
  • Suction device according to one of aspects 27 to 36, characterized in that the filter housing has a filter housing cover which can be removed, in particular non-destructively and/or without tools, and which has the filter housing outlet opening.
  • Suction device according to one of aspects 27 to 37, characterized in that the filter housing is inserted into the suction part housing in a form-fitting manner, in particular in a way that is removable again without tools and/or without destruction.
  • Suction device according to one of aspects 27 to 38, characterized in that the filter housing can be inserted into the suction part housing and removed again through the suction part outlet opening.
  • Suction device characterized in that a suction tube, in particular a straight one, is arranged in the suction part, through which sucked-in protection flows together with sucked-in air and/or liquid.
  • Suction device characterized in that the suction pipe has a suction pipe inlet opening and a suction pipe outlet opening.
  • Suction device according to aspect 41 characterized in that the dirt suction opening is formed by the suction pipe inlet opening or that the suction pipe inlet opening is fluidically connected to the dirt suction opening.
  • Suction device according to one of aspects 1 to 42, characterized in that the liquid separator has at least one labyrinth.
  • Suction device according to aspect 43 characterized in that at least part of the labyrinth is formed by the arrangement of the suction pipe relative to the filter housing.
  • Suction device characterized in that at least part of the labyrinth is formed by the arrangement of the suction pipe relative to the suction part housing.
  • Suction device characterized in that at least part of the labyrinth is formed by the arrangement of the filter housing relative to the suction part housing.
  • Suction device according to one of aspects 27 to 39 in combination with one of aspects 40 to 46, characterized in that a. the distance of the filter housing inlet opening to the dirt intake opening is smaller than the distance of the suction pipe outlet opening to the dirt intake opening, and/or that b.
  • the distance of the filter housing inlet opening to the suction pipe inlet opening is smaller than the distance of the suction pipe outlet opening to the suction pipe inlet opening, and/or that c. the distance of the filter housing inlet opening to the suction pipe inlet opening is smaller than the length of the suction pipe, and/or that d. the distance of the suction pipe outlet opening to the drive part is smaller than the distance of the filter housing inlet opening to the drive part, and/or that e. the distance of the suction pipe outlet opening to the filter housing outlet opening is smaller than the distance of the filter housing inlet opening to the filter housing outlet opening, and/or that f. the distance of the suction pipe outlet opening to the filter housing outlet opening is smaller than the length of the filter housing.
  • Suction device characterized in that the suction pipe ends freely in the suction part housing and/or in the container arranged within the suction part housing and/or that the suction pipe outlet opening ends freely in the suction part housing and/or in the container arranged within the suction part housing. 49.
  • Suction device characterized in that the suction pipe outlet opening is arranged in the receiving space for dirt and sucked-in liquid or immediately adjacent to the receiving space for dirt and sucked-in liquid.
  • Suction device according to one of aspects 1 to 49, characterized in that the drive part is elongated, in particular at least partially cylindrical.
  • Suction device according to one of aspects 1 to 50, characterized in that the drive part has a main body and a handle.
  • Suction device characterized in that a. the main body is elongated and/or substantially cylindrical, and/or that b. the handle is elongated and/or substantially cylindrical.
  • Suction device according to aspect 51 or 52, characterized in that the main body and the handle are arranged coaxially to each other.
  • Suction device according to one of aspects 1 to 53, characterized in that the drive part has a drive part housing.
  • Suction device according to one of aspects 50 to 54, characterized in that the drive part has a drive part inlet opening at one end.
  • Suction device characterized in that the drive part has the handle at the other end.
  • Suction device according to one of aspects 8 to 54 in combination with aspect 55 or 56, characterized in that the suction part outlet opening is arranged immediately adjacent to the drive part inlet opening when the suction part is coupled to the drive part.
  • Suction device according to one of aspects 1 to 57, characterized in that the drive part includes a fan which has a motor and an impeller driven by the motor.
  • Suction device characterized in that the drive motor is designed as a brushless electric motor.
  • Suction device according to aspect 58 or 59, characterized in that the drive part has an impeller chamber in which the impeller is arranged and a motor chamber in which the motor is arranged, wherein the impeller chamber and the motor chamber are chambers separated from one another by a partition wall.
  • Suction device characterized in that at least part of the partition wall is formed by a motor shield of the drive motor.
  • Suction device characterized in that a fitting opening, in particular a frustoconical opening, is provided, in particular in a bearing plate forming part of the partition wall, into which the motor plate provided with a counter-fitting circumference is inserted with a precise fit.
  • Suction device according to one of aspects 60 to 62, characterized in that the impeller chamber is at least partially formed by a part of the drive part housing.
  • Suction device according to aspect 63, characterized in that the impeller chamber has the clean air outlet opening.
  • Suction device according to one of aspects 60 to 64, characterized in that the motor chamber is arranged outside the fluid flow.
  • Suction device according to one of aspects 1 to 65, characterized in that the suction power is variable.
  • Suction device characterized in that two suction power levels are provided, namely a dry cleaning suction level for sucking in exclusively dry dirt and a wet cleaning suction level for sucking in liquid.
  • Suction device characterized in that a. the electrical drive power of the drive motor in the dry cleaning suction stage is higher than in the wet cleaning suction stage, or that b. the electrical drive power of the drive motor in the dry cleaning suction stage is two to four times, in particular three times, higher than in the wet cleaning suction stage.
  • Suction device characterized in that a. the electrical drive power of the drive motor in the dry cleaning suction stage is in the range from 100 W to 200 W, in particular 150 W, and/or that b. the electrical drive power of the drive motor in the wet cleaning suction stage is in the range from 25 W to 75 W, in particular 50 W.
  • Suction device according to one of aspects 67 to 69, characterized in that a. the suction negative pressure in the dry cleaning suction stage is higher than in the wet cleaning suction stage, or that b. the suction negative pressure in the dry cleaning suction stage is higher by a factor of 1.5 to 2.5, in particular by a factor of 2, than in the wet cleaning suction stage.
  • Suction device according to one of aspects 67 to 70, characterized in that a. the suction negative pressure in the dry cleaning suction stage is in the range from 12 kPa to 20 kPa, in particular 16 kPa, and/or that b. the suction negative pressure in the wet cleaning suction stage is in the range from 6 kPa to 10 kPa, in particular 8 kPa.
  • Suction device according to one of aspects 67 to 71, characterized in that a manually operable switch is provided for switching between the suction power levels.
  • Suction device according to one of aspects 67 to 72, characterized in that an automatic switching device is provided which automatically switches between the suction power levels.
  • Suction device characterized in that the automatic switching device switches between the suction power levels depending on whether the sucked-in fluid contains a liquid.
  • Suction device according to aspect 73 or 74, characterized in that a liquid sensor is present and that the automatic switching device automatically switches from the dry cleaning suction stage to the wet cleaning suction stage as soon as the liquid sensor detects the suction of liquid and/or the presence of sucked-in liquid in the suction part.
  • Suction device characterized in that the liquid sensor is arranged in the region of the dirt suction opening or in the collection area.
  • Suction device according to one of aspects 73 to 76, characterized in that the automatic switching device automatically switches between the suction power levels depending on the orientation of the suction device in the room.
  • Suction device characterized in that the automatic switching device includes a position sensor, in particular an acceleration sensor.
  • Vacuum cleaner according to aspect 77 or 78 characterized in that the automatic switching device switches from the dry cleaning suction stage to the wet cleaning suction stage when it detects that the vacuum cleaner is held by the user in such a way that the dirt suction opening is arranged above the drive part.
  • Suction device according to one of aspects 1 to 79, characterized in that at least one further suction part is present which can be coupled to the drive part in exchange for the suction part.
  • Suction device according to one of aspects 64 to 79 in combination with aspect 80, characterized in that the automatic switching device automatically selects the suction power level depending on which of the suction parts is currently coupled to the drive part.
  • Suction device characterized in that at least one of the suction parts has a switching element characteristic of the suction part, for example a switching projection, which cooperates with a detector element of the drive part when the suction part is coupled to the drive part.
  • a switching element characteristic of the suction part for example a switching projection
  • Suction device according to one of aspects 80 to 82, characterized in that the further suction part is a window cleaning suction part which has an elastic squeegee lip.
  • Suction device according to one of aspects 1 to 83, characterized in that the suction device is designed and suitable to be held and operated exclusively with one hand, in particular on the handle, during a suction process.
  • Suction device according to one of aspects 1 to 84, characterized in that the suction device contains an electrical energy storage device, in particular a battery.
  • Fig. 1 shows a first embodiment of a suction device according to the invention in a schematic cross-sectional view
  • Fig. 2 the suction device according to the first embodiment in disassembled state
  • Fig. 3 is a detailed view of the suction device according to the first embodiment
  • Fig. 4 is a representation of the course of the fulid flow in the suction device according to the first embodiment
  • Fig. 5 shows a second embodiment of a suction device according to the invention in a schematic cross-sectional view
  • Fig. 6 shows a third embodiment of a suction device according to the invention in a schematic cross-sectional representation
  • Fig. 7 shows a fourth embodiment of a suction device according to the invention in a schematic cross-sectional view
  • Fig. 8 shows a fifth embodiment of a suction device according to the invention in a schematic cross-sectional view
  • Fig. 9 shows a sixth embodiment of a suction device according to the invention in a schematic cross-sectional view
  • FIG. 10 the sixth embodiment of a suction device according to the invention in a different rotational position
  • Fig. 1 a seventh embodiment of a suction device according to the invention in a schematic cross-sectional view
  • Fig. 12 the seventh embodiment of a suction device according to the invention in a different orientation
  • FIG. 13 an eighth embodiment of a suction device according to the invention in disassembled state
  • Fig. 14 the suction device according to the eighth embodiment in ready-to-use condition
  • Fig. 15 the suction device according to the eighth embodiment with the emptying opening closure open
  • Fig. 16 the suction device according to the eighth embodiment with an attached window cleaning nozzle, which has a squeegee lip
  • Fig. 17 the suction part of the suction device according to the eighth embodiment in a cross-sectional view without inserted filter
  • FIG. 18 the suction part of the suction device according to the eighth embodiment in a cross-sectional view with inserted filter.
  • FIG. 1 shows a first embodiment of a suction device according to the invention in a schematic cross-sectional view.
  • the vacuum cleaner has a dirt intake opening 1 through which dirt can be sucked into the vacuum cleaner from outside.
  • the vacuum cleaner also has several clean air outlet openings 2 through which filtered air flows out.
  • the dirt intake opening 1 is formed on a suction part 3, which is detachably coupled to a drive part 4, which has a fan 5 and the clean air outlet openings 2.
  • the suction part 3 has a liquid separator 6, which is implemented, among other things, by a special arrangement of a suction pipe 7 relative to a filter housing 8.
  • the special arrangement of the suction pipe 7 relative to the filter housing 8 is part of a labyrinth of the liquid separator 6.
  • the liquid separator 6 is also formed by a special design and arrangement of the filter housing 8.
  • the suction part 3 has a suction part housing 9.
  • the suction pipe 7 is arranged in the suction part housing 9, through which the suctioned-in protection flows together with the suctioned-in air and/or liquid.
  • the suction pipe 7 has a suction pipe inlet opening 10 and a suction pipe outlet opening 11.
  • the dirt suction opening 1 is simultaneously also the suction pipe inlet opening 10, which, however, does not necessarily have to be the case regardless of the other features.
  • the suction pipe 7 ends freely in the suction part housing.
  • a spring-loaded and/or elastic closure flap 12 is arranged on the suction pipe 7 in the region of the suction pipe outlet opening 11, which flap opens automatically due to the fluid flow during operation of the suction device and closes automatically when the suction device is switched off.
  • the filter housing 8 is inserted into the suction part housing 9 and has a filter housing inlet opening 13 and a filter housing outlet opening 14 and which contains a filter 15 for removing dirt from the air flow.
  • An end section 65 of the filter housing 8 ends freely in the suction part housing 9.
  • a sieve 16 in particular a stainless steel sieve, is inserted into the filter housing inlet opening 13, in particular in a non-destructive manner and/or can be removed again without tools.
  • the filter housing inlet opening 13 is arranged adjacent to the suction part housing 9 in such a way that only a narrow gap 17 is formed between the edge of the filter housing inlet opening 13 and the suction part housing.
  • the labyrinth of the liquid separator 6 is also realized, among other things, in that the axial distance 18 of the filter housing inlet opening 13 to the dirt intake opening 1 is smaller than the distance 19 of the suction pipe outlet opening 11 to the dirt intake opening 1. In addition, the distance 20 of the suction pipe outlet opening 11 to the drive part 4 is smaller than the distance 21 of the filter housing inlet opening 21 to the drive part 4.
  • the suction pipe outlet opening 11 there is an impact surface 22 against which the sucked-in fluid and the sucked-in dirt collide.
  • the impact surface 22 is part of an outer surface of the filter housing 8. The sucked-in liquid adheres to the impact surface and then drips off and remains in a receiving space 23. Larger sucked-in dirt particles also lose their kinetic energy by impacting the impact surface 22 and also remain in the receiving space 23.
  • the receiving space 23 for dirt (in particular for larger dirt particles such as bread crumbs, stones and the like) and sucked-in liquid is formed by a part of the suction part housing 9.
  • the suction part has a drain opening 24 through which dirt and sucked-in liquid can be removed from the receiving space 23.
  • the emptying opening closure 24 is designed as a flap.
  • the flap is mounted by means of a hinge 26 in such a way that it is pulled into an open position by the force of weight when the suction device (as in suction mode) is held at an angle and with the dirt suction opening 1 facing downwards.
  • the user only has to unlock the flap for an emptying process using a locking device 27, so that it then automatically falls into the open position.
  • the suction part 3 has a suction part outlet opening 28 through which air flows into the drive part 4
  • the suction part outlet opening 28 is arranged opposite a drive part inlet opening 29 when the suction part 3 is coupled to the drive part 4.
  • the suction part 3 is releasably coupled to the drive part 4 or can be coupled to the drive part 4 by means of a coupling device.
  • the coupling device has a coupling element designed as a locking opening 30 on the suction part 3 and a counter-coupling element arranged on the drive part 4 and designed as a locking projection 31.
  • the locking projection 31 engages in the locking opening 30 when the suction part 3 is coupled to the drive part 4.
  • the coupling element is arranged as a component of the suction part 3 in the region of the suction part outlet opening 28, while the counter-coupling element is arranged as a component of the drive part 4 in the region of a drive part inlet opening 29.
  • the counter-coupling element on the drive part 4 is designed to be remote-controlled.
  • a release button 33 is provided in the area of a handle 32 of the drive part 4, which is mechanically coupled to the counter-coupling element.
  • the mechanical coupling is not shown in Figure 1 for the sake of better clarity. With such a design, the user can release the locking of the coupling device by pressing the release button 33 in order to be able to release the suction part 3 from the drive part 4.
  • the drive part 4 includes a fan 5 which has a motor 34 and an impeller 35 driven by the motor 34.
  • the drive part 4 has an impeller chamber 36 in which the impeller 35 is arranged.
  • the drive part 4 has a motor chamber 37 in which the motor is arranged, the impeller chamber 36 and the motor chamber 37 being chambers separated from one another by a partition wall 38.
  • a drive shaft 39 extends through the partition wall 38 arranged between the impeller chamber 36 and the motor chamber 37 and is sealed relative to the partition wall 38 by a shaft seal 40.
  • An electronic control device 41 and an electrical energy storage device 42 are also arranged in the motor chamber 37.
  • a push button switch 43 by means of which the user can switch the suction device on, off and select a suction power level.
  • the user can select a dry cleaning suction level if he only wants to vacuum up dry dirt, or he can select a wet cleaning suction level if he wants to vacuum up liquid or a mixture of air and liquid, especially a dirty mixture.
  • the suction device can have an automatic switching device, in particular with a liquid sensor (not shown).
  • Fig. 2 shows the suction device according to the first embodiment in a disassembled state, in which the filter housing 8 has been removed from the suction part housing 9.
  • the filter 15 has been removed from the filter housing 8.
  • the filter housing 8 has a filter housing cover 44 which can be removed, in particular non-destructively and/or without tools, and which has the filter housing outlet opening 14.
  • the user can first insert the filter 15, in particular in the form of a filter cartridge, into the filter housing 8 and then close the filter housing 8 with the filter housing cover 44, wherein the filter housing cover 44 is preferably designed in such a way that it secures the filter inserted into the filter housing 8 in its position radially and/or axially.
  • the filter housing 8 can then be inserted through the suction part outlet opening 28 into the suction part housing 9, in particular in a form-fitting manner.
  • the suction part 3 is coupled to the drive part 4, whereby the operational state of the suction device is achieved.
  • Fig. 3 shows a detailed view of the suction device according to the first embodiment.
  • a part of the partition wall arranged between the impeller chamber 36 and the motor chamber 37 is formed by a motor shield 45 of the drive motor 34.
  • the drive part housing 46 there is a fitting opening 47, in particular a truncated cone, in a bearing shield 48 forming part of the partition wall 38, into which the motor shield 45 provided with a counter-fitting circumference 49 is inserted with precision when assembling the suction device.
  • Fig. 4 shows a representation of the course of the fulid flow in the suction device according to the first embodiment.
  • the drain opening 24 is arranged outside the fluid flow.
  • Such a design has the very special advantage that the drain opening closure 25, by means of which the drain opening 24 can be closed, and in particular the seals (not shown) of the drain opening closure 25 are not stressed by the fluid flow. In particular, this advantageously prevents liquid and/or air from being accidentally pushed out past the seal of the drain opening closure 25 due to the effect of the fluid flow.
  • Fig. 5 shows a second embodiment of a suction device according to the invention in a schematic cross-sectional view, which differs from the first embodiment in that a liquid sensor 50 is present.
  • the liquid sensor 50 is part of an automatic switching device that automatically switches from a dry cleaning suction stage to a wet cleaning suction stage as soon as the liquid sensor 50 detects the suction of liquid and/or the presence of sucked-in liquid. Alternatively or additionally, it can also be provided that the automatic switching device automatically switches from the wet cleaning suction stage to the dry cleaning suction stage if the liquid sensor 50 does not detect any liquid.
  • the liquid sensor 50 is connected to the electronic control device 41, which controls the motor 34 in response to the sensor signal of the liquid sensor 50.
  • the suction part 3 and the drive part 4 each have electrical contact elements 51 which are designed and positioned such that when the suction part 3 is coupled to the drive part 4, an electrical contact is automatically established via electrical cables 52 from the control device 41 arranged in the drive part to the liquid sensor 50 arranged in the suction part 3.
  • Fig. 6 shows a third embodiment of a suction device according to the invention in a schematic cross-sectional view, which differs from the second embodiment in that the liquid sensor 50 is arranged in the receiving space 23.
  • Fig. 7 shows a fourth embodiment of a suction device according to the invention in a schematic cross-sectional view, which differs from the second and third embodiments in that the liquid sensor 50 is arranged in the drive part 4, namely in the impeller chamber 36.
  • This embodiment has the very special advantage that electrical signal lines running from the drive part 4 to the suction part 3 can be dispensed with.
  • Fig. 8 shows a fifth embodiment of a suction device according to the invention in a schematic cross-sectional view.
  • the suction device has a further suction part 53, which can be coupled to the drive part 4 in exchange for the suction part 3.
  • the further suction part 53 can be constructed and designed differently than the suction part 3.
  • the further suction part 53 can be a window cleaning suction part, which is specially designed for cleaning window panes and which has an elastic squeegee lip 54.
  • an automatic switching device automatically selects the suction power level depending on which of the suction parts 3, 53 is currently coupled to the drive part 4.
  • the automatic switching device selects a wet cleaning suction level when the further suction part 53 is coupled to the drive part 4.
  • the further suction part 53 has a switching element 63 characteristic of the further suction part 53, namely a switching projection, which interacts with a detector element 64 of the drive part 4 when the further suction part 53 is coupled to the drive part 4.
  • FIGS. 9 and 10 show a sixth embodiment of a suction device according to the invention in a schematic cross-sectional view.
  • the part of the filter housing 8 that has the filter housing inlet opening 13 is arranged so as to be rotatable about a rotation axis 56 relative to the suction part housing 9 by means of a rotary joint 61.
  • the suction device has an automatically operating alignment device that always automatically aligns the part of the filter housing 8 that has the filter housing inlet opening 13 such that the filter housing inlet opening 13 is directed upwards.
  • the alignment device is designed such that it aligns the part of the filter housing 8 that has the filter housing inlet opening 13 depending on the direction of the weight force acting on an alignment device weight body 55.
  • the suction pipe 7 ends freely in the suction part housing 9.
  • a push button switch 43 by means of which the user can switch the suction device on, off and select a suction power level.
  • the user can select a dry cleaning suction level if he only wants to suck up dry dirt, or he can select a wet cleaning suction level if he wants to suck up liquid or a mixture of air and liquid, especially a dirty one.
  • the suction device can have an automatic switching device, in particular with a liquid sensor (not shown).
  • Figure 10 shows the sixth embodiment of a suction device according to the invention in a different rotational position. It can be seen that the filter housing inlet opening 13 always remains oriented upwards.
  • This design makes advantageous use of the fact that the liquid sucked in always flows downwards in the suction part due to the force of gravity. Since the filter housing inlet opening 13 is always directed upwards regardless of the respective orientation of the suction device, the penetration of liquid into the filter housing 8 is effectively prevented in this way.
  • Figures 11 and 12 show a seventh embodiment of a suction device according to the invention in a schematic cross-sectional view.
  • the part of the filter housing 8 which has the filter housing inlet opening 13 is connected relative to the suction part housing 9 by means of a (for the sake of clarity not described in more detail) shown) universal joint pivotably arranged about a pivot point 57, wherein the part of the filter housing 8 which has the filter housing inlet opening 13 is connected to the rest of the filter housing 8 via a bellows 58.
  • the suction device has an automatically operating alignment device which always automatically aligns the part of the filter housing 8 which has the filter housing inlet opening 13 such that the filter housing inlet opening 13 is directed upwards.
  • the alignment device is designed such that it aligns the part of the filter housing 8 which has the filter housing inlet opening 13 depending on the direction of the weight force acting on an alignment device weight body 55.
  • the suction pipe 7 ends freely in the suction part housing 9.
  • a push button switch 43 by means of which the user can switch the suction device on, off and select a suction power level.
  • the user can select a dry cleaning suction level if he only wants to suck up dry dirt, or he can select a wet cleaning suction level if he wants to suck up liquid or a mixture of air and liquid, especially a dirty one.
  • the suction device can have an automatic switching device, in particular with a liquid sensor (not shown).
  • Figure 12 shows the seventh embodiment of a suction device according to the invention with a different orientation. It can be seen that the filter housing inlet opening 13 always remains oriented upwards.
  • Fig. 13 shows an eighth embodiment of a suction device according to the invention in a disassembled state.
  • the suction device has a dirt intake opening 1 through which dirt can be sucked into the suction device from outside.
  • the suction device also has several clean air outlet openings 2 through which filtered air flows out.
  • the dirt intake opening 1 is formed on a suction part 3, which is detachably coupled to a drive part 4, which has a fan 5 and the clean air outlet openings 2.
  • the suction part 3 has a liquid separator 6, not shown in Figure 13.
  • the suction part 3 has a suction part housing 9, while the drive part 4 has a drive part housing 46.
  • Fig. 13 shows the suction device according to the eighth embodiment in a disassembled state, in which the filter housing 8 has been removed from the suction part housing 9.
  • the filter 15 has been removed from the filter housing 8.
  • the filter housing 8 has a filter housing cover 44 which can be removed, in particular non-destructively and/or without tools, and which has the filter housing outlet opening 14.
  • the user can first insert the filter 15, in particular in the form of a filter cartridge, into the filter housing 8 and then close the filter housing 8 with the filter housing cover 44, wherein the filter housing cover 44 is preferably designed in such a way that it secures the filter inserted into the filter housing 8 in its position radially and/or axially.
  • the filter housing 8 can then be inserted through the suction part outlet opening 28 into the suction part housing 9, in particular in a form-fitting manner.
  • a push button switch 43 by means of which the user can switch the suction device on, off and select a suction power level.
  • the user can select a dry cleaning suction level if he only wants to suck up dry dirt, or he can select a wet cleaning suction level if he wants to suck up liquid or a mixture of air and liquid, especially a dirty one.
  • the suction device can have an automatic switching device, in particular with a liquid sensor (not shown).
  • Fig. 14 shows the suction device according to the eighth embodiment in a ready-to-use state.
  • the suction pipe 7 ends freely in the suction part housing 9.
  • the suction part housing 8 is transparent, which makes it possible to check the filling level of the receiving space from the outside without removing the suction part 3 from the drive part 4 or opening the receiving space.
  • a marking 59 for the maximum permissible filling level is arranged on the suction part housing.
  • Fig. 15 shows the suction device according to the eighth embodiment from below.
  • the suction part has a discharge opening 24 through which dirt and sucked-in liquid can be removed from the receiving space 23.
  • the emptying opening closure 24 is designed as a flap.
  • the flap is mounted by means of a hinge 26 in such a way that it is pulled into an open position by the force of weight when the suction device (as in suction mode) is held at an angle and with the dirt suction opening 1 facing downwards.
  • the user only has to unlock the flap for an emptying process using a locking device 27, so that it then automatically falls into the open position.
  • the suction device has an electrical energy storage device (not shown), in particular a battery, and is designed to be inserted into a charging station (not shown) for a charging process, wherein the electrical charging contacts 60 required for charging the energy storage device are automatically connected.
  • Fig. 16 shows the suction device according to the eighth embodiment with an attached window cleaning nozzle 62, which has a squeegee lip 54.
  • the window cleaning nozzle 62 is attached to the dirt suction opening 1.
  • Fig. 17 shows the suction part 3 of the suction device according to the eighth embodiment in a cross-sectional view without a filter inserted.
  • the suction pipe 7 is arranged in the suction part housing 9, through which the suctioned-in protection flows together with the suctioned-in air and/or liquid.
  • the suction pipe 7 has a suction pipe inlet opening 10 and a suction pipe outlet opening 11.
  • the dirt suction opening 1 is simultaneously also the suction pipe inlet opening 10, which, however, does not necessarily have to be the case regardless of the other features.
  • a spring-loaded and/or elastic closure flap 12 is arranged on the suction pipe 7 in the region of the suction pipe outlet opening 11, which flap opens automatically due to the fluid flow during operation of the suction device and closes automatically when the suction device is switched off.
  • Fig. 18 shows the suction part of the suction device according to the eighth embodiment in a cross-sectional view with the filter inserted.
  • the suction part 3 has a liquid separator 6, which is implemented, among other things, by a special arrangement of a suction pipe 7 relative to a filter housing 8.
  • the liquid separator 6 has, among other things, a labyrinth for the fluid flow, through a special arrangement of a suction pipe 7 relative to a filter housing 8.
  • the liquid separator 6 is also formed by a special design and arrangement of the filter housing 8.
  • the filter housing 8 is inserted into the suction part housing 9, which has a filter housing inlet opening 13 and a filter housing outlet opening 14 and which contains a filter 15 for removing dirt from the air flow.
  • a sieve 16 in particular a stainless steel sieve, is inserted into the filter housing inlet opening 13, in particular in a manner that can be removed again in a non-destructive manner and/or without tools.
  • the filter housing inlet opening 13 is arranged adjacent to the suction part housing 9 in such a way that only a narrow gap 17 is formed between the edge of the filter housing inlet opening 13 and the suction part housing.
  • the labyrinth of the liquid separator 6 is also realized, among other things, in that the axial distance 18 of the filter housing inlet opening 13 to the dirt intake opening 1 is smaller than the distance 19 of the suction pipe outlet opening 11 to the dirt intake opening 1. In addition, the distance 20 of the suction pipe outlet opening 11 to the drive part 4 is smaller than the distance 21 of the filter housing inlet opening 21 to the drive part 4.
  • the suction pipe outlet opening 11 there is an impact surface 22 against which the sucked-in fluid, together with the dirt, collides.
  • the impact surface 22 is part of an outer surface of the filter housing 8. The sucked-in liquid adheres to the impact surface and then drips off and remains in a receiving space 23. Larger sucked-in dirt particles also lose their kinetic energy by impacting the impact surface 22 and also remain in the receiving space 23.
  • the receiving space 23 for dirt (in particular for larger dirt particles such as bread crumbs, stones and the like) and sucked-in liquid is formed by a part of the suction part housing 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

L'invention concerne un appareil d'aspiration qui comporte un orifice d'aspiration de saletés, à travers lequel des saletés peuvent être aspirées de l'extérieur dans l'appareil d'aspiration, et qui comporte un orifice de sortie d'air pur, par lequel s'écoule l'air filtré, l'orifice d'aspiration de saletés étant réalisé sur un élément d'aspiration qui comporte un séparateur de liquide ou qui est conçu sous la forme d'un séparateur de liquide et qui est accouplé de manière détachable à un élément d'entraînement qui présente une soufflante et l'orifice de sortie d'air pur. L'appareil d'aspiration se caractérise en ce que la puissance d'aspiration peut être modifiée, deux niveaux de puissance d'aspiration étant prévus, à savoir un niveau d'aspiration de nettoyage à sec pour assurer l'aspiration uniquement de saletés sèches et un niveau d'aspiration de nettoyage par voie humide pour assurer l'aspiration de liquides ou l'aspiration d'un mélange d'air et de liquide, en particulier souillé. En particulier, selon l'invention, un dispositif de commutation automatique, qui passe automatiquement d'un niveau de puissance d'aspiration à l'autre, peut être prévu.
PCT/EP2024/060834 2023-04-19 2024-04-19 Appareil d'aspiration Ceased WO2024218364A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LULU503991 2023-04-19
LU503991A LU503991B1 (de) 2023-04-19 2023-04-19 Sauggerät

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WO2024218364A2 true WO2024218364A2 (fr) 2024-10-24
WO2024218364A3 WO2024218364A3 (fr) 2024-12-12

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PCT/EP2024/060834 Ceased WO2024218364A2 (fr) 2023-04-19 2024-04-19 Appareil d'aspiration
PCT/EP2024/060833 Ceased WO2024218363A1 (fr) 2023-04-19 2024-04-19 Appareil d'aspiration

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PCT/EP2024/060833 Ceased WO2024218363A1 (fr) 2023-04-19 2024-04-19 Appareil d'aspiration

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WO (2) WO2024218364A2 (fr)

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Publication number Priority date Publication date Assignee Title
DE102024120442A1 (de) 2024-07-18 2026-01-22 Alfred Kärcher SE & Co. KG Handgehaltenes saugreinigungsgerät

Citations (2)

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US4536914A (en) 1984-03-07 1985-08-27 Cic Int'l Corp. Wet-dry vacuum cleaner
EP3323333A1 (fr) 2016-11-16 2018-05-23 Black & Decker, Inc. Aspirateur

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US4573234A (en) * 1984-01-30 1986-03-04 The Scott & Fetzer Company Hand-held vacuum cleaner
DE3429565A1 (de) * 1984-08-10 1986-02-20 H & H Industriebedarfs- und Handels GmbH, 5000 Köln Kleinstaubsauger
US4920608A (en) * 1988-08-08 1990-05-01 Emerson Electric Co. Portable hand held vacuum cleaner
GB9115603D0 (en) * 1991-07-19 1991-09-04 Black & Decker Inc Improvements in electrical arrangements in power tools and switches
US6125501A (en) * 1999-01-08 2000-10-03 Yip; Chung Lun Vacuum cleaner using a sheet filter
US6832407B2 (en) * 2000-08-25 2004-12-21 The Hoover Company Moisture indicator for wet pick-up suction cleaner
US6360399B1 (en) * 2001-03-14 2002-03-26 Hezdwzlers Research & Development, Inc. Hand-held vacuum cleaner with interchangeable control panel module
DE102007025388A1 (de) * 2007-05-30 2008-12-04 Miele & Cie. Kg Verfahren zum Betreiben eines Staubsaugers
EP2992799B1 (fr) * 2014-09-05 2017-02-01 Leifheit Ag Appareil d'aspiration portatif doté d'une buse d'aspiration interchangeable

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US4536914A (en) 1984-03-07 1985-08-27 Cic Int'l Corp. Wet-dry vacuum cleaner
EP3323333A1 (fr) 2016-11-16 2018-05-23 Black & Decker, Inc. Aspirateur

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WO2024218364A3 (fr) 2024-12-12
WO2024218363A1 (fr) 2024-10-24
LU503991B1 (de) 2024-10-21

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