EP4181750A1 - Saug-reinigungsgerät und verfahren zum betreiben eines saug-reinigungsgeräts - Google Patents
Saug-reinigungsgerät und verfahren zum betreiben eines saug-reinigungsgerätsInfo
- Publication number
- EP4181750A1 EP4181750A1 EP21740000.1A EP21740000A EP4181750A1 EP 4181750 A1 EP4181750 A1 EP 4181750A1 EP 21740000 A EP21740000 A EP 21740000A EP 4181750 A1 EP4181750 A1 EP 4181750A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning device
- liquid
- suction cleaning
- chamber
- impeller
- 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 219
- 238000000034 method Methods 0.000 title claims description 12
- 239000007788 liquid Substances 0.000 claims abstract description 287
- 230000002093 peripheral effect Effects 0.000 claims abstract description 59
- 238000007654 immersion Methods 0.000 claims description 38
- 239000004753 textile Substances 0.000 claims description 38
- 239000000463 material Substances 0.000 claims description 35
- 238000000605 extraction Methods 0.000 claims description 24
- 230000005484 gravity Effects 0.000 claims description 18
- 230000002349 favourable effect Effects 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 7
- 238000010407 vacuum cleaning Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000012459 cleaning agent Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- NQLVQOSNDJXLKG-UHFFFAOYSA-N prosulfocarb Chemical compound CCCN(CCC)C(=O)SCC1=CC=CC=C1 NQLVQOSNDJXLKG-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4027—Filtering or separating contaminants or debris
-
- 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
- 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
- A47L7/0038—Recovery tanks with means for emptying the 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
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/18—Liquid filters
Definitions
- the invention relates to a suction cleaning device, comprising an active device for acting on an area to be cleaned, a suction aggregate device for generating a suction flow, and a liquid separator.
- the invention also relates to a method for operating a suction cleaning device.
- Such a suction cleaning device is used in particular for surface cleaning.
- a carpeted floor or upholstery, a window pane or a hard floor surface can be cleaned depending on the design of the suction cleaning device.
- US 2010/0050368 A1 discloses a suction and cleaning device with a nozzle, fan means, a pure water tank and a water-air separator.
- a tank for dirty liquid and/or dust is provided.
- a handle is used to hold with one hand.
- heating means are provided with a ceramic element for electrical and thermal insulation.
- US 2018/0103813 A1 discloses a water suction device with an air blowing function.
- US 2012/0266408 A1 discloses a vacuum cleaner with a rotatable separator.
- DE 10 2012 110 765 A1 discloses a suction cleaning device with a liquid separator, which has a receptacle for a liquid, at least one supply line for a liquid-air mixture opening into the receptacle and at least one extraction line opening into the receptacle for Has air, and has a body of rotation arranged inside the receptacle, which is rotatably mounted about an axis of rotation and which comprises at least one propeller element for driving a fluid.
- a drive is provided, by means of which the rotary body can be rotated independently of the liquid/air mixture.
- EP 2 808 553 A2 discloses an impeller.
- US 5,599,401 discloses a method for sucking up a liquid which is dirt-laden.
- US 2002/0073504 A1 discloses a liquid extraction device.
- WO 2016/054944 A1 discloses a vacuum cleaner for hard surfaces.
- WO 2016/054943 A1 also discloses a cleaning device for cleaning hard surfaces.
- US 4,776,058 discloses a portable surface cleaning suction device for sucking up liquids.
- the CN 103445717 A discloses a portable suction unit for cleaning surfaces.
- the object of the invention is to provide a suction cleaning device of the type mentioned at the outset, which has an effective cleaning function with a compact design.
- the liquid separator has a chamber with a peripheral wall and an impeller which is arranged in the chamber so that it can rotate about an axis of rotation, and at least one outlet opening on the peripheral wall for liquid, and that a holding tank for liquid is provided, which is fluidly connected to the at least one outlet opening for liquid.
- the suction cleaning device can thus be made compact and can be implemented as a hand-held or hand-guided suction cleaning device, for example.
- Separated - "air-free" - liquid can be decoupled in a simple manner from the liquid separator and coupled directly, ie with a minimized channel length, into the holding tank for liquid.
- the impeller in the liquid separator allows liquid to drip (which contains dirt if a dirty liquor is sucked in) to be thrown against the peripheral wall by centrifugal forces, in which case it can then be discharged through the at least one outlet opening.
- the holding tank for liquid can be positioned on the suction cleaning device in a simple manner, in particular also in a detachable manner.
- a relatively large receiving volume can be provided for the receiving tank for liquid.
- the liquid separator can also be used in a simple manner as a suction aggregate device.
- the impeller can also provide the necessary negative pressure to generate the suction flow.
- the corresponding liquid separator can also be used to suck in foaming media, such as a dirty liquor with a cleaning agent additive that is laden with air.
- foaming media such as a dirty liquor with a cleaning agent additive that is laden with air.
- a high level of foam breaking can be achieved.
- the suction cleaning device can be used for different volume flows, such as those that result from the extraction of a liquor of dirt from textile materials.
- a compact design can be implemented, so that a hand-held, self-sufficient suction cleaning device can also be formed. This can be used to effectively clean upholstered furniture or car seats, for example.
- the impeller is part of the suction unit and is arranged and designed in such a way that during operation of the suction cleaning device it creates a negative pressure to generate the suction flow, and in particular that the impeller is designed as an impeller.
- liquid separator and suction unit devices are formed integrally.
- the rotation of the impeller creates the corresponding vacuum for sucking in the (air-laden) dirt liquor.
- the impeller also separates the drawn-in two-phase flow, namely the separation of drawn-in air and the dirt-laden liquid.
- the dirt-laden liquid in turn, can easily be collected in the liquid holding tank.
- the impeller is arranged and designed in such a way that the liquid separator is designed as a centrifugal separator and during operation of the suction cleaning device throws drops of liquid radially outwards towards the peripheral wall.
- the impeller (fan wheel or impeller) is designed in such a way that the liquid droplets are thrown radially outwards. Appropriate blades are provided for this purpose. It is usually also provided that liquid droplets on the impeller are given a directional component in the circumferential direction. In relation to the axis of rotation, the radial direction is parallel to the radial direction. Accordingly, the circumferential direction is related to the radial direction and the axial direction.
- the axis of rotation is oriented parallel to at least a partial area of the peripheral wall; the chamber is at least in a partial area cylindrical or cone-shaped in sections; the chamber is at least approximately rotationally symmetrical to the axis of rotation.
- the approximately rotationally symmetrical design of the chamber refers to the fact that the at least one outlet opening for liquid disrupts the rotational symmetry in a partial area of the peripheral wall.
- At least one of the following is also favorable: a mouth normal of the at least one outlet opening for liquid is oriented transversely and in particular perpendicularly to the axis of rotation; the at least one outlet opening for liquid is formed in the shape of a slit; the at least one outlet opening for liquid or a supply area to the at least one outlet opening for liquid extends over at least 50% and in particular at least 70% and in particular at least 80% of a height (in a height direction parallel to the direction of rotation) of the peripheral wall;
- the suction cleaning device is operated correctly for cleaning a surface that is horizontal in relation to the direction of gravity, the at least one outlet opening for liquid and/or the receiving tank for liquid is located below and in particular completely below the axis of rotation in relation to the direction of gravity.
- a compact structure results from a transverse orientation of a mouth normal of the at least one outlet opening to the axis of rotation.
- separated liquid from the chamber of the liquid separator can be coupled directly into the receiving tank for liquid while minimizing a flow path.
- the at least one outlet opening in the form of a slot, with precisely one outlet opening being provided in particular, liquid can be discharged from the chamber over a large vertical region of the peripheral wall.
- the at least one outlet opening for liquid or a supply area to the at least one outlet opening for liquid extends over at least 50% and in particular at least 70% and in particular at least 80% (and preferably at least 90%) of a height of the peripheral wall.
- the height is taken parallel to the axis of rotation. It can be so over a large width of the peripheral wall Drain liquid from the liquid separator and couple it into the liquid holding tank.
- the feed area is an area which is designed, for example, in the shape of a funnel in order to improve the feed of liquid to the outlet opening.
- a suction cleaning device during normal operation for cleaning a horizontal surface, at least one outlet opening for liquid and/or the holding tank for liquid is located below and in particular completely in relation to the direction of gravity (geometrically). below the axis of rotation.
- a gravity-driven supply of separated liquid to the at least one outlet opening for liquid can also be achieved and the liquid discharge is improved.
- favorable geometric conditions are then present, also in other operating modes.
- the suction cleaning device can only be operated in this way.
- the suction cleaning device can be used to clean vertical surfaces or surfaces inclined to the horizontal, such as upholstered backrests.
- the at least one outlet opening for liquid is assigned a feed area, in particular with at least one of the following: the feed area has at least one flow area, which leads to the at least one outlet opening for liquid, in particular when cleaning is in a horizontal direction in relation to the force of gravity a flow of liquid is gravity driven towards the at least one outlet opening in the flow area; at the feed portion, the peripheral wall is formed inclined to the axis of rotation; the feed area is funnel-shaped.
- the discharge of liquid from the chamber of the liquid separator can be improved by the feed area.
- gravity-driven support of the removal of separated liquid from the liquid separator can be achieved.
- the peripheral wall of the supply area is designed to be inclined relative to the axis of rotation.
- the chamber is then formed with its peripheral wall in the shape of a truncated cone.
- the feed area then forms a funnel which is aligned with the at least one outlet opening for liquid.
- a drive motor is advantageously provided which is assigned to the chamber and which drives a rotational movement of the impeller, the drive motor in particular being an electric motor.
- the impeller to rotate as an impeller in a simple manner, on the one hand to achieve the necessary negative pressure for sucking in the (air-laden) dirt liquor and on the other hand to enable liquid droplets to be separated off centrifugally.
- a central tube which protrudes into the chamber and which is in fluid communication with the active device, with an air-laden dirt liquor being coupled into the chamber via the central tube.
- the air-laden dirt liquor can be fed directly to the impeller via the central pipe and thrown outwards via the impeller.
- a suction flow can thus be generated in an effective manner, and on the other hand, centrifugal separation can be achieved in an effective manner.
- the central tube is positioned coaxially with the axis of rotation;
- the impeller makes contact with the central tube and makes contact with the central tube, in particular on or in the area of an end face, or is spaced apart from the central tube by a gap, in particular with a width of less than 1 mm;
- the impeller has a central area, to which the air-laden dirt liquor is fed via the central tube, with radial deflection taking place at or adjacent to the central area; an annulus is formed in the chamber around the central tube;
- the chamber has an inlet opening for an air-laden dirt liquor formed on the central tube;
- a ratio of an inner diameter of the central tube when the air-laden dirt liquor is supplied to the impeller to an outer diameter of the impeller is in the range between 0.1 and 0.5 and in particular in the range between 0.25 and 0.35, and for example at approx .0.3.
- the coaxial alignment of the central tube with the axis of rotation results in a compact structure.
- the corresponding suction flow can be generated effectively.
- the air-laden dirt liquor can be coupled into the chamber in an effective manner.
- the impeller Due to the arrangement of the impeller directly opposite to the central tube, on the one hand a negative pressure can be effectively applied to the central tube to generate the suction flow. On the other hand, it can be effective the air-laden dirt liquor can be coupled into the impeller and a centrifugal separator can be formed in an effective manner.
- the impeller can contact the central tube directly (e.g. via a labyrinth seal) or there can be a “small” gap, in particular with a width of less than 1 mm, between the impeller and the central tube.
- the impeller has a central area and a radial deflection (and usually also a deflection in the circumferential direction) takes place at or adjacent to the central area.
- annular space is formed in the chamber around the central tube. (Dry) air can be separated in suitable areas of the annular space in which the quantity of liquid droplets is minimized in order to implement the liquid separator with the separation of air and liquid.
- the air-loaded dirt liquor is coupled into the chamber via the inlet opening for air-laden dirt liquor on the central tube.
- the impeller is assigned an air supply device via which the impeller secondary air can be supplied and in particular a central area of the impeller can be supplied with air from the chamber independently of any dirt liquor that has been sucked in.
- the problem can arise that a suction opening on the active device becomes clogged. Without the air supply device, this would result in the volume flow being interrupted.
- the air supply device allows secondary air to be introduced into the impeller via the central pipe in order to maintain the volume flow. This results in improved usability and an improved cleaning result. A temporary clogging of an intake opening can be bridged.
- the air supply device comprises one or more gaps between the central tube and the impeller;
- the air delivery means comprises one or more openings of the central tube to an interior of the chamber;
- at least one secondary air valve is arranged on the central tube.
- one of these measures or a combination of two or more of these measures can be used to couple air from the chamber into the central tube in order to maintain a volume flow if required.
- a corresponding width of the at least one gap is greater than 0 mm and preferably less than 3 mm.
- the width of this gap is in the range between 0.5 mm and 2 mm and particularly preferably around 1 mm.
- At least one leakage air valve is provided, then this opens defi ned when a certain pressure difference is present.
- the at least one gap, the at least one opening or the at least one secondary air valve points in particular into an area of the chamber which contains a small amount of liquid during operation of the liquid separator.
- the chamber is assigned at least one dip tube, wherein at least one dip tube at least one outlet opening for air is formed. Air can be extracted from the chamber via the at least one outlet opening for air.
- the provision of at least one dip tube allows the outlet opening of the at least one dip tube to be positioned in the chamber and in particular in an annular space around a central tube in such a way that liquid impingement on the outlet opening is minimized.
- the at least one immersion tube is oriented parallel or transverse to the axis of rotation; the at least one immersion tube is oriented parallel to and/or at a distance from a central tube via which an air-laden dirt liquor is coupled into the chamber; an end face of the at least one dip tube is spaced apart from an end face of the central tube and/or is spaced apart from the impeller; the at least one dip tube has a smaller length than the central tube (relative to the length within an interior space of the chamber); the at least one air outlet opening is spaced from the peripheral wall; the at least one dip tube has circular-segment-shaped boundary walls fitted to the peripheral wall; the at least one immersion tube is positioned above the axis of rotation in relation to the direction of gravity when the suction cleaning device is operating properly; the at least one dip tube has a collar-shaped extension on one end face, which is in particular sharp-edged.
- the measures mentioned allow effective - dry - air to be discharged from the chamber.
- the at least one dip tube protrudes into a flow-promoting area in the chamber in which the quantity of liquid droplets is minimized.
- a collar-shaped extension on the end face of the at least one immersion tube which is in particular sharp-edged and which is designed in particular in the manner of a disk, allows water droplets to drip off the collar and this effectively prevents water droplets from penetrating into the at least one immersion tube.
- the at least one dip tube is fluidly connected to the active device and the active device has at least one outlet opening for air. This allows air to be blown onto an area to be cleaned. This is advantageous, for example, in the event of flooding. As a result, liquid which has penetrated into the at least one immersion tube is then applied again to the area to be cleaned.
- the chamber has a first end cap and has a second end cap between which the peripheral wall lies. An interior of the chamber is closed by the first end cover and the second end cover.
- the first end cover is positioned facing the active device; a center tube extends through the first end cap toward the impeller or the center tube is seated on the first end cap; at least one dip tube runs through the first end cap for removing air from the chamber or the at least one dip tube sits on the first end cap; the first end cap is oriented transversely and in particular perpendicularly to the axis of rotation.
- the measures mentioned result in a compact construction of the suction cleaning device.
- the space required for the liquid separator can be minimized.
- the first end cap can be used to hold the central tube and/or the at least one dip tube. (It is also possible, for example, that the at least one dip tube goes through the peripheral wall or is held on the peripheral wall.)
- the impeller is adjacent to the second end cover and in particular closer to the second end cover than to the first end cover; in relation to an extension of the axis of rotation, a drive motor is arranged behind the second end cover and is connected in particular to the second end cover; a pivot bearing for the impeller is net angeord on the second end cover; the second end cover is oriented transversely and in particular perpendicularly to the axis of rotation.
- the measures mentioned result in a compact construction of the suction cleaning device.
- the space requirement for the corresponding components on the suction cleaning device is minimized.
- a filter is arranged between the active device and the liquid separator.
- the corresponding suction cleaning device can be used effectively to clean textile materials such as carpets.
- the suction cleaning device is designed as an extraction device as part of a spray extraction device.
- the filter is designed in particular as a coarse dirt filter and in particular as a lint filter.
- Lint are fibers loosened from textile material.
- the upstream filter prevents coarse dirt from entering the chamber. This results in an effective mode of operation of the liquid separator.
- the filter is connected in front of a chamber of the liquid separator. This means that fluff cannot get into the liquid separator. For the same reason, it is favorable if the filter is connected upstream of a central pipe, by means of which the air-laden dirty liquor is coupled into a chamber, in relation to a direction of flow of an air-laden dirty liquor.
- a flow path for an air-laden dirt liquor from the active device to a chamber of the liquid separator has a deflection area, and the filter is arranged at the deflection area.
- the filter is arranged to be removable from the suction cleaning device and can in particular be removed from the outside of the housing. An operator can then easily clean the fluff filter.
- the filter and in particular the fluff filter, is designed, for example, as a sieve, which accordingly does not let fluff of a typical size through.
- the impeller is operated at a rotational speed at which foam in the chamber is broken up. Furthermore, it is favorable if the suction cleaning device is operated with regard to the speed of the impeller in such a way that the impeller is "automatically” cleaned, ie dirt cannot settle on the impeller.
- the impeller has a speed in the range between 1,000 revolutions per minute and 100,000 revolutions per minute during operation of the suction cleaning device, and in particular a speed in the range between 10,000 revolutions per minute Minute and 50,000 revolutions per minute, and in particular has a speed in the range between 25,000 revolutions per minute and 30,000 revolutions per minute.
- an extraction device for cleaning textile materials can be effectively implemented at a speed in the range between 25,000 revolutions per minute and 30,000 revolutions per minute.
- the outside diameter of the impeller is in the range between 20 mm and 150 mm, and in particular in the range between 40 mm and 80 mm, and in particular in the range between 66 mm and 70 mm.
- the at least one outlet opening for liquid is formed with sharp edges at least on one boundary wall. In this way, effective liquid droplet removal into the liquid receiving tank can be achieved.
- the at least one outlet opening for liquid is wedge-shaped on at least one side with an acute wedge angle, and in particular sharp-edged wedge-shaped on that side which faces a direction of rotation of the impeller. In this direction of rotation, liquid droplets are thrown towards the wedge-shaped side. Effective droplet removal into the liquid receiving tank can then be achieved.
- the active device can include at least one of the following: a scraper for liquid; a cleaning roller, which is covered with a textile material, for example; a suction nozzle; a dipping edge for a textile material; at least one intake opening for an air-laden dirt liquor and at least one channel which leads to the liquid separator; at least one outlet opening for air and at least one channel leading to the liquid separator.
- a wiper for liquid is used, for example, for a window cleaner. With the scraper, the suction cleaning device is placed on the window surface to be cleaned.
- a cleaning roller is used, for example, in a floor cleaning device, which in particular is hand-guided by a standing operator. It is then in particular provided that the cleaning roller is sucked off.
- An (air-laden) dirt liquor can be sucked in via a suction nozzle.
- the textile material can be combed through to a certain extent via an immersion edge for a textile material in order to achieve an improved cleaning effect.
- the air-laden dirt liquor can be sucked in and guided to the liquid separator via the at least one channel.
- At least one outlet opening for air is arranged on the active device. This means that separate dry air can be blown out at the active device onto the area to be cleaned. This can be advantageous in the event of a flood, for example. Liquid that escapes in the event of flooding can thus be applied to the area to be cleaned.
- a battery device and in particular a rechargeable battery device is present for providing electrical energy.
- the suction cleaning device can be operated independently.
- the suction cleaning device it is also possible for the suction cleaning device to have a mains connection.
- a housing which has a handle opening, the battery device being arranged on a web which delimits the handle opening and in particular delimits it towards an underside of the housing.
- a drive motor for the impeller follows, and in particular immediately follows, the chamber, and the battery device follows, and in particular immediately follows, the drive motor.
- “Follow immediately” is understood to mean that the components follow one another directly and in particular that the distance between these components is at most 2 cm.
- a compact structure results when a housing is provided with a bottom and the liquid holding tank is detachably seated on the bottom. This results in an optimized use of space. Liquid from the liquid separator can be coupled into the receiving tank in a simple manner.
- the holding tank for liquid can be realized with a large recording volume. A distance over which liquid must flow from the chamber of the liquid separator to the receiving tank in order to be received by it can be minimized.
- the holding tank for liquid has a first area, a second area following the first area and a third area following the second area, wherein liquid from the at least one outlet opening for liquid is coupled in via the second area.
- a socket for coupling to the chamber of the liquid separator sits on the second area.
- the holding tank for liquid can thus be optimally adapted to a housing shape of the suction cleaning device and, on the one hand, (dirty) liquid can be removed from the chamber to the holding tank in an optimized manner, and on the other hand, the holding tank can be provided with a high holding volume for realize liquid.
- the first area and the third area each have a greater height than the second area, and in particular when the holding tank for liquid has a C-shaped or U-shaped cross section.
- the third area is positioned opposite a drive motor when the liquid receiving tank is arranged on the suction cleaning device.
- the first area is positioned facing the active device.
- the suction cleaning device is designed in particular as a hand-held or hand-guided suction cleaning device. Due to the design according to the invention, the suction cleaning device can be made compact, so that it can be used as a hand-held device or as a hand-held device. It can also be used, for example, to effectively clean furniture with textile materials, including car seats. For example, it is also possible to effectively clean backrests and the like.
- the suction cleaning device is designed as an extraction device or spray extraction device for textile materials, which is hand-held in particular.
- a cleaning liquid usually water with a surfactant-based cleaning agent additive
- a surfactant-based cleaning agent additive is sprayed onto the textile material.
- the suction cleaning device can include the spray device for spraying the textile material, or can be a separate part of a spray extraction device, namely the part via which the extraction (the suction from the dirty liquor) takes place.
- a method for operating a suction cleaning device and in particular a suction cleaning device according to the invention in which a vacuum is generated by an impeller of a liquid separator, through which an air-laden dirt liquor is sucked into a chamber of the liquid separator and wherein the liquid separator acts as a centrifugal separator by the rotating impeller, wherein separated liquid is discharged to a liquid holding tank via at least one liquid outlet opening arranged on a peripheral wall of the chamber.
- the method according to the invention has the advantages already explained in connection with the suction cleaning device according to the invention.
- the suction cleaning device according to the invention can be operated with the method according to the invention or the method according to the invention can be carried out on the suction cleaning device according to the invention.
- FIG. 1 shows a perspective representation of an exemplary embodiment of a suction cleaning device according to the invention
- FIG. 2 shows a side view of the suction cleaning device according to FIG.
- FIG. 3 shows a sectional view of the suction cleaning device according to FIG.
- FIG. 4 shows an enlarged view of area A according to FIG. 3;
- Figure 5 is a sectional view taken along line 5-5 of Figure 2;
- Figure 6 is a sectional view taken along line 6-6 of Figure 2;
- FIG. 7 shows a partial representation of the suction cleaning device according to FIG. 1 in the sectional view according to FIG. 3 with an active device, a liquid separator and a holding tank for liquid;
- FIG. 8 shows a front view of the liquid separator according to FIG.
- FIG. 9 shows a view of the liquid separator according to FIG. 8 in the direction C according to FIG. 8;
- FIG. 10 shows a side view of the liquid separator according to FIG.
- FIG. 11 is a partial sectional view of the liquid separator of FIG. 8 taken along line 11-11;
- FIG. 12 shows another exemplary embodiment of a liquid separator in a sectional view similar to the sectional view of FIG. 11;
- FIG. 13 shows a sectional view of a further exemplary embodiment of a liquid separator
- FIG. 14 shows a sectional view similar to the sectional view according to FIG. 5 for a further exemplary embodiment of a liquid separator
- FIG. 15 is a sectional view of another embodiment of a liquid separator similar to the view of FIG. 12;
- FIG. 16 shows a second exemplary embodiment of a suction cleaning device according to the invention.
- FIG. 17 shows a third exemplary embodiment of a suction cleaning device according to the invention.
- a first exemplary embodiment of a suction cleaning device 10 according to the invention is an extraction device for cleaning textile materials and in particular textile coverings such as carpets.
- the cleaning liquid is in particular a mixture of water with an addition, for example, of a surface-active cleaning agent.
- the suction cleaning device 10 may be a spray extraction device in which a spray device is arranged on the suction cleaning device (not shown in the drawings).
- the cleaning liquid prefferably be sprayed onto the textile surface to be cleaned separately from the suction cleaning device 10 .
- the suction cleaning device 10 comprises a housing 12.
- a housing interior 14 is formed, which has functional components of the suction cleaning device 10.
- the housing 12 has a first housing wall 16 and an opposite second housing wall 18 ( Figures 1, 2).
- the first housing wall 16 and the second housing wall 18 are connected to one another via a first intermediate wall 20 and a second intermediate wall 22 .
- the housing 12 has an upper surface 24. This upper surface 24 is formed on the first intermediate wall 20.
- the housing 12 has a front side 26. This is also on the first intermediate wall 20 formed.
- the front side 26 lies at an obtuse angle, which is for example of the order of 110°, to the top side 24.
- the housing 12 also has a bottom 28 opposite the top 24 .
- the bottom 28 is formed on the second intermediate wall 22 GE.
- the housing 12 has a rear side 30 which faces away from the front side 26 .
- a handle 32 for holding the suction cleaning device 10 is formed on the housing 12 .
- hand-held operation of the suction cleaning device 10 is possible.
- an operator can hold the suction cleaning device 10 with one hand.
- a handle opening 34 is provided on the housing 12 .
- the handle opening 34 is a continuous opening through the first housing wall 16 and the second housing wall 18.
- the handle opening 34 is bounded towards the top 24 of the housing 12 by a first web 36 of the housing 12.
- To the bottom 28 through the handle opening is limited by a second web 38 of the housing 12 Ge.
- To the rear 30 are the first web 36 and the second web 38 connected by a third web 40. This third web 40 delimits the handle opening 34 towards the rear side 30 .
- a wall 42 which delimits the handle opening 34 .
- the first web 36, the second web 38 and the third web 40 are closed to the outside by corresponding walls.
- An operator can hold the suction cleaning device 10 with one hand on the first web 36 . In doing so, he can dip the holding fingers (in particular the fingers of the corresponding holding hand without the thumb) through the grip opening 34 .
- a switch 44 is arranged on the first intermediate wall 20 (on the upper side 24). This is arranged in particular in relation to the handle 32 in such a way that an operator who is holding the suction cleaning device 10 on the handle 32 with a holding hand can operate the switch 44 for example with the thumb of the holding hand. About the switch 44 a suction function of the suction cleaning device 10 is activated or de-activated in particular.
- the spray device can be activated or deactivated wirelessly, for example via the switch 44 .
- a removable holding tank 46 for liquid Positioned on the housing 12 is a removable holding tank 46 for liquid.
- the receiving tank 46 sits on the underside 28 of the housing 12.
- the holding tank 46 can be removed from the housing 12 in a direction 48 which corresponds to a direction from the top 24 to the bottom 28 .
- the receiving tank 46 can be inserted into the housing 12 in the opposite direction to the direction 48 .
- the holding tank 46 can be detachably fixed to the housing 12 via a fixing device.
- the suction cleaning device 10 includes a suction unit device 50 which is arranged in the housing interior 14 .
- the suction unit device 50 generates a negative pressure through which a suction flow can be generated.
- a dirty liquor is sucked in which is laden with air.
- the dirty liquor contains cleaning liquid and dirt, which in particular is at least partially dissolved in the cleaning liquid.
- dirty liquor is also understood here to mean a sucked-in liquid which is not dirt-laden because, for example, the area 51 to be cleaned is dirt-free.
- a liquid separator 52 is provided to separate air and liquid from the air-laden dirt liquor.
- the suction unit device 50 and the liquid separator 52 are formed integrally, i.e. the liquid separator 52 acts as a suction unit device 50 (and generates a negative pressure for sucking in the air-laden dirt liquor) or the suction unit device 50 acts as a liquid separator 52 (and separates liquid from air).
- the liquid separator 52 or the suction unit device 50 comprises a chamber 54 which is positioned in the interior space 14 of the housing.
- the chamber 54 has a peripheral wall 56 .
- a chamber interior 58 is laterally closed by the peripheral wall 56 .
- the end face of the chamber interior 58 is closed by a first end cap 60 and an opposite second end cap 62, the peripheral wall 56 lying between the first end cap 60 and the second end cap 62 and being connected to them.
- Chamber 54 has an axis 64 oriented in an axial direction.
- the chamber 54 is designed to be rotationally symmetrical to this axis 64 for the most part.
- the chamber 54 is cylindrical.
- the peripheral wall 56 is parallel to the axis 64.
- first end cap 60 and the second end cap 62 are oriented parallel to one another and are oriented transverse and preferably perpendicular to the axis 64 .
- An impeller 66 is rotatably positioned in the chamber interior 58 .
- the impeller 66 is rotatably supported by a rotary bearing 68 about an axis of rotation 70 .
- the rotary bearing 68 is arranged on the second end cover 62.
- the axis of rotation 70 is coaxial with the axis 64. Correspondingly, the axis of rotation 70 is then oriented parallel to the peripheral wall 56 or transversely and in particular perpendicularly to the first end cover 60 or to the second end cover 62 .
- a drive motor 72 is provided to drive the rotational movement of the impeller 66 .
- This drive motor 72 is in particular an electric motor.
- the drive motor 72 is positioned outside of the chamber 54 .
- it is arranged in a motor housing 74 which is arranged in the housing interior 14 behind the chamber 54 .
- the motor housing 74 is fixed to the second end cover 62 .
- the drive motor 72 directly drives the impeller 66 (without an intermediate gear).
- the drive motor 72 immediately follows the impeller 66 , that is to say is arranged directly behind the impeller 66 .
- the drive motor 72 is supplied with electrical energy via a battery device 76 and in particular a rechargeable battery device 76 .
- the battery device 76 is arranged in the second web 38 .
- the battery device 76 immediately follows the drive motor 72. “Immediately” or “directly” is understood to mean that the distance between the motor housing 74 and the battery device 76 is at most 2 cm.
- a central tube 78 is arranged on the chamber 54 or the chamber 54 has this central tube 78 .
- the central tube 78 is through the first Front cover 60 is guided or seated on the first front cover 60.
- the air-laden dirt liquor can be coupled into the chamber interior 58 via the central pipe 78.
- the central tube 78 is arranged coaxially to the axis 64 and thus also coaxially to the axis of rotation 70 . It has an interior space 80 which is, in particular, designed as a hollow cylinder.
- the central tube 78 leads up to the impeller 66.
- the impeller 66 contacts the central tube 78 via an area 82.
- a labyrinth seal for example, is seated on the area 82.
- the central tube 78 is provided at the end with a collar 84 on which the region 82 is formed.
- the impeller 66 has an annular web 86 facing the central tube 78 which is immersed in a corresponding annular recess on the collar 84 .
- the dirty liquor is coupled in a main flow direction 88, which is axially aligned.
- the flow is deflected in the radial direction (indicated in Figure 3 by double arrows with the reference number 90) and in the circumferential direction, based on the axial direction of the axis 64.
- the impeller 66 is arranged at a distance from the first end cover 60 in the chamber interior 58 . It is closer to the second end cap 62 than to the first end cap 60. It is provided with vanes 92 ( Figures 5, 6) which are arranged at an angle to the radial direction. In the case of the impeller 66 with the blades 92 shown in FIGS. 5 and 6, these blades 92 are straight.
- the blades 92 may be formed in a curved manner.
- the impeller 66 generates the necessary negative pressure for the suction flow, ie for sucking in the air-laden suction liquor.
- the impeller 66 is designed as an impeller.
- the impeller 66 is also part of the liquid separator 52. About the impeller 66 drops of liquid are thrown outwards to the peripheral wall 56 back.
- At least one outlet opening 94 for liquid is arranged on the peripheral wall 56 . Through this at least one outlet opening 94 for liquid (compare also FIGS. 5 and 6), dirt-laden liquid which is "vented” can be discharged.
- the at least one outlet opening 94 is a type of disturbance in the rotational symmetry of the peripheral wall 56 with respect to the axis 64.
- Chamber 54 has a height H ( Figure 3) in a height direction parallel to axis 64.
- the outlet opening 94 extends over at least 50% and preferably over at least 70% and preferably over at least 80% of this height H of the chamber 54 in the chamber interior 58 (compare FIG. 9).
- the at least one outlet opening can be a plurality of individual openings or just one outlet opening (compare FIG. 9).
- the liquid separator 52 is designed as a centrifugal separator. Drops of liquid are thrown outwards and discharged via the outlet opening 94 at the peripheral edge of the chamber 54 .
- the vacuum cleaning device 10 which is designed as a hand-held device, a proper operating mode for cleaning a horizontal surface in relation to the direction of gravity g (compare Figure 3), in which the vacuum cleaning device 10 is held by the handle 32 and acts on the area 51 to be cleaned via an active device 96 which positions at least one outlet opening 94 geometrically below the axis of rotation 70 or geometrically below the axis 64 in relation to the gravitational direction g.
- the handle 32 is oriented above the area 51 to be cleaned in relation to the gravitational direction g.
- Such an operation is carried out in particular when the suction cleaning device 10 is used to clean a floor or a seat made of textile material.
- the suction cleaning device 10 can also be used to clean vertical surfaces or inclined surfaces such as backrests made of textile material.
- the at least one outlet opening opens into the holding tank 46 for liquid.
- dirty liquid is thrown via the at least one outlet opening 94 for liquid directly via the inlet opening 98 into the holding tank for liquid 46 .
- a mouth normal of the at least one outlet opening 94 is oriented transversely and in particular perpendicularly to the axis of rotation 70 .
- the at least one outlet opening 94 is delimited by a delimiting wall 100 (FIGS. 5, 6).
- the boundary wall 100 is part of the order fangswandung 56; one outlet opening 94 is a continuous recess on the peripheral wall 56.
- the at least one outlet opening 94 is formed with sharp edges at least on one side by appropriate design of the boundary wall 100 . This improves the coupling of liquid into the holding tank 46 for liquid.
- the boundary wall 100 is designed as a wedge element 102 on one side. In this area, the boundary wall 100 is wedge-shaped and has a wedge tip 104, which is correspondingly sharp-edged. A wedge angle at wedge tip 104 is an acute angle.
- this wedge angle is of the order of 40°.
- the wedge element 102 points to a direction of rotation 106 (FIGS. 5, 6) of the impeller 66 . It is thereby improved liquid drainage he aims.
- the chamber 54 has a socket 108 in the area of the at least one outlet opening 94 .
- the receiving tank 46 can be placed on this socket 108 .
- the liquid holding tank 46 includes a bottom wall 110, a side wall 112 and a top wall 114 ( Figures 1-6).
- the receiving tank 46 when it is fixed to the housing 12, applied to the bottom 28 of the housing 12 Ge.
- a counter-element 116 for the nozzle 108 is arranged on the top wall 114.
- the cover wall 114 and thus the holding tank 46 can be placed on the connecting piece 108 via the counter-element 116 .
- the holding tank 46 extends in a longitudinal direction 118 (FIG. 7) which (when the holding tank 46 is seated on the housing 12) is at least approximately parallel to the axis 64 or the axis of rotation 70 (FIG. 7).
- the holding tank 46 has a first area 120, a second area 122 following the first area, and a third area 124 following the second area.
- a height Hi of the first area 120 in a height direction perpendicular to the longitudinal direction 118 is higher than a height H2 of the second area 122.
- a height H3 of the third area 124 is also higher than the height H2 of the second area 122.
- the counter-element 116 is seated on the second area 122.
- the first area 120 faces the active device 96 .
- the third area 124 faces the drive motor 72 .
- receiving tank 46 is at least approximately C-shaped or U-shaped in shape.
- the receiving tank 46 Due to the counter-element 116, which is designed to be placed on the connection piece 108, the receiving tank 46 also has a C-shaped or U-shaped configuration in a cross section perpendicular to the axis of rotation 70, which contains the connection piece 108 (FIGS. 5, 6). .
- the holding tank 46 for liquid Due to the described design of the holding tank 46 for liquid, it can be optimally positioned on the housing 12 . The result is an optimized use of space for the suction cleaning device 10, particularly when hand-held operation is provided. A relatively high capacity for receiving tank 46 can be provided.
- An annular space 126 is formed around the central tube 78 in the chamber interior 58 of the chamber 54 .
- the chamber 54 has at least one dip tube 128, which space 126 protrudes into the ring.
- the immersion tube is arranged on the first end cover 60 of the chamber 54 and/or protrudes through this first end cover 60.
- the at least one immersion tube 128 includes an outlet opening 130 (FIG. 7) for air, via which (dry) air can be discharged from the chamber interior 58 .
- outlet opening 130 is spaced from peripheral wall 56, spaced from central tube 78, and spaced from impeller 66.
- the immersion tube 128 is oriented parallel to the axis 64 or to the axis of rotation 70 .
- the dip tube 128 is arranged and designed in such a way that its outlet opening 130 is positioned in an area within the annular space 126 that is particularly favorable to flow. In this streamlined area, the amount of liquid is small.
- the outlet opening 130 points into a region of the annular space 126 which, in relation to the at least one outlet opening 94, lies beyond the axis of rotation 70.
- the axis of rotation 70 thus lies between the immersion tube 128 and the outlet opening 94 for liquid.
- the immersion tube 128 is positioned geometrically above the axis of rotation 70 in relation to the direction of gravitation g.
- a collar 134 is arranged on an end face 132 of the immersion tube 128 .
- the collar 134 represents a flange-like or disc-shaped expansion of the immersion tube 128 on the end face 132.
- the collar 134 is designed with sharp edges, in particular on its circumference. As a result, drops of liquid can drip off the collar 134 due to the air flow and cannot get into the immersion tube 128 .
- the suction cleaning device 10 has an air discharge device 136, via which provided by the liquid separator 52 via the at least one immersion tube 128 separated - dry - air is given to the environment.
- the (at least one) immersion tube 128 has boundary walls 138 in the shape of a segment of a circle.
- An inner boundary wall 138a and an outer boundary wall 138b are provided ( Figure 6). These follow in their course the peripheral wall 56, that is, in particular, are aligned parallel and extend over a circle segment, for example, in an angular range of about 60 °.
- the inner boundary wall 138a and the outer boundary wall 138b are connected to each other by rounded walls.
- the suction cleaning device 10 acts on the area 51 to be cleaned via the active device 96 .
- the area 51 to be cleaned is a textile surface.
- the active device 96 comprises a dipping edge 140 (FIG. 4) which can be dipped into the textile material in order to comb through it.
- the immersion edge 140 is on the front side 26.
- the active device 96 also includes a suction opening 142 through which the air-laden dirt liquor can be sucked.
- Intake port 142 is fluidly connected to central tube 78; (at least) one channel 144 leads from the suction opening 142 to the central tube 78. Through the channel 144 sen the air-laden dirt liquor is conveyed into the liquid separator 52 from.
- the suction cleaning device 10 has a filter 146 .
- This filter 146 is in particular a coarse dirt filter.
- fluff filter In the case of an extraction device for textile materials, it is in particular a fluff filter and is used to filter out fluff (fluff) which is sucked in when cleaning a textile material and prevents fluff from getting into the chamber 54 .
- Fluff is dissolved textile fibers.
- the filter 146 is formed in particular by a sieve, for example made of a metallic material or plastic material.
- the filter 146 is connected upstream of the liquid separator 52 with the central tube 78 .
- the exemplary embodiment of the suction cleaning device 10 includes a deflection area 148 (FIG. 3) at which the air-laden flow fleet undergoes a direction deflection.
- This deflection area 148 is at the end of the channel 144 and at the beginning of the central tube 78.
- the filter 146 is arranged at this deflection area 148 .
- a flow input of the filter 146 is connected to the end of the channel 144 (directly).
- a flow outlet of the filter 146 is connected (directly) to the central tube 78 .
- the flow inlet represents a dirty side and the flow outlet represents a clean side.
- the filter 146 is held on the housing 12 via a filter holder 150 .
- the filter 146 is arranged in the region of the first intermediate wall 20 and on the front side 26 .
- reference numeral 152 indicates a direction of removal.
- the filter holder 150 is provided, for example, with a handle element 154, via which an operator can insert the filter 146 into a corresponding recess on the housing 12 (on the front side 26) or remove it from there.
- the provision of the filter 146 optimizes the suction cleaning device 10 for cleaning textile materials. Coarse dirt such as fluff cannot get into the liquid separator 52 .
- the filter 146 is configured to be washable and thus reusable.
- an outlet opening 156 for air is arranged next to the intake opening 142 .
- This outlet opening 156 is in fluid communication with the at least one immersion tube 128 via at least one channel 158 . This allows separated—dry—air to be discharged from the suction cleaning device 10 .
- the outlet opening with the channel 158 forms the air discharge device 136 which is connected to the dip tube 128 .
- Dry air is then delivered to the area 51 to be cleaned.
- the suction cleaning device 10 in its training as an extraction device in connection with a spray device works as follows:
- the area 51 to be cleaned ie the area made of textile material, is sprayed with a cleaning agent.
- the cleaning agent is water, preferably with a surfactant cleaning additive, for example.
- the corresponding wet surface is processed with the hand-held suction cleaning device 10.
- an operator holds the suction cleaning device 10 by the handle 32 in such a way that the immersion edge 140 penetrates into the textile material.
- the operator then drives the suction cleaning device 10 over the area 51 to be cleaned and combs through it to a certain extent.
- Horizontal surfaces, vertical surfaces and inclined surfaces can be cleaned.
- upholstered backrests can also be cleaned. It can also be used in confined spaces such as in a vehicle.
- the impeller 66 rotates in the chamber 54. A negative pressure is thereby generated. As a result, the suction liquor is sucked in from the area to be cleaned at the suction opening 142 . This is air laden. This flows in the channel 144 to the central tube 78.
- the air-laden dirt liquor which is in particular an (at least) two-phase mixture of air and liquid, is indicated in the drawings by a double arrow 160 (compare FIG. 4).
- the air-laden dirt liquor flows through the filter 146, where fluff in particular is filtered out. It flows via the central pipe 78 to the impeller 66 and there to a central area. The flow is deflected (compare, for example, FIG. 3), with the arrangement of the blades 92 then resulting in a flow with a radial component (and also a component in the circumferential direction).
- the liquid separator 52 is designed as a centrifugal separator. By the centrifugal force, liquid droplets are thrown outwards to the peripheral wall 56 in order.
- the outlet opening 94 for liquid is arranged there.
- Dirty liquid with a low proportion of air can be discharged through this and coupled into the holding tank 46 for liquid.
- a coupling of (dirty) liquid speed which is indicated by a wavy arrow 162 (compare, for example, FIG. 5), can be conveyed into the receiving tank 46 by gravity.
- liquid droplets can reach the outlet opening 94 along the peripheral wall.
- the outlet opening 94 is designed with sharp edges, in particular with the wedge element 102. This results in an optimized discharge.
- the at least one dip tube 128 protrudes into an area of the annular space 126 around the central tube 78 in which the amount of liquid is small.
- Dry air can be discharged via the at least one immersion tube 128 .
- the air delivery device 136 leads to the outlet opening 156 which is adjacent to the intake opening 142 .
- the receiving tank 46 dirt-laden liquid accumulates.
- the holding tank 46 is removable from the housing 12 for emptying and cleaning.
- the suction cleaning device 10 is battery-operated in particular via the battery device 76 .
- the battery device 76 is an accumulator device.
- Mate When operating a suction cleaning device 10 for cleaning textile materials, Mate can fundamentally produce a lot of foam, due to the suction of air and possibly also due to the addition of a surfactant-based cleaning agent, for example. Furthermore, there can be very different volume flows with regard to the dirty liquor.
- the liquid separator 52 is designed in such a way that a foam inside the chamber 54 is broken up. Largely drop-free air is blown out through the immersion tube 128 at the outlet opening 156 . Dirty liquid is thrown out of the chamber 54 into the holding tank 46 for liquid through the at least one outlet opening 94, which is designed in particular as a slit.
- the speed of the impeller 66 is in the range between 1,000 revolutions per minute and 100,000 revolutions per minute, preferably in the range between 10,000 revolutions per minute and 50,000 revolutions per minute, and very particularly preferably in the range between 25,000 RPM and 30,000 RPM.
- An outer diameter D of the impeller 66 (compare FIG. 6) is preferably in the range between 20 mm and 150 mm, particularly preferably in the range between 40 mm and 80 mm, and particularly preferably in the range between 66 mm and 70 mm. In a specific embodiment, the outer diameter D is 68 mm.
- An entry diameter E for entry of the dirty liquor into the chamber 54 on the impeller 66 is defined by the central tube 66 .
- the ratio of this entry diameter E to the outside diameter D* of the impeller 66 is in particular in the range between 0.1 and 0.5. In a specific embodiment, this ratio E to D* is approximately 0.3.
- the problem can arise that the suction opening 142 is closed and the volume flow is interrupted as a result.
- an air supply device 164 (see FIG. 11) is provided, through which secondary air from the chamber interior 58 is made available to the central tube 70 .
- the air delivery device 164 includes a gap 166 (FIG. 11) which lies between the central tube 78 and the impeller 66 at the end face of the central tube 78 .
- This gap 166 establishes fluid communication between an interior of the center tube 78 and the chamber interior 58 .
- a width B* (compare FIG. 11) of this gap 166, which provides corresponding secondary air, is in particular greater than 0 mm and goes up to 3 mm.
- the width B* is preferably in the range between 0.5 mm and 2 mm.
- the air supply device for supplying secondary air to the impeller 66 can have one or more openings 168 on the central tube 78 towards the chamber interior 58 .
- one or more leakage air valves may be arranged on the central tube 78, through which leakage air can be coupled in a defined manner into the flow path to the impeller 66.
- a false air flow is indicated by arrows 170 with broken lines.
- a flow of dry air is indicated in the drawings by a solid single arrow 172 .
- the suction cleaning device 10 is compact. The result is an op-timized use of space.
- the suction unit device 50 and the liquid separator 52 are integrated.
- the suction unit 50 is a centrifugal separator or from the liquid separator 52 includes a blower for generating negative pressure.
- the battery device 76 is arranged in the second web 38 .
- a control device 174 (FIG. 3) is arranged in the first web 36 .
- one-handed operation of the suction cleaning device 10 is also possible.
- An operator holds the suction cleaning device 10 with one hand on the handle 32, it being supported on the active device 96 on the area 51 to be cleaned.
- an operator can then operate a spray device with the other hand.
- the suction cleaning device 10 can also be used with very different volume flows. A compact design can be achieved, so that a hand-held device can also be implemented.
- the lint filter 146 prevents lint from entering the chamber interior 58 and impairing its function.
- the impeller 66 rotates at a relatively high speed during operation. As a result, dirt is thrown off and the impeller 66 remains "clean".
- the area to be cleaned is blown with dry air. This results in a com pact structure.
- the noise emission of the suction cleaning device 10 is kept low.
- liquid from the dip tube 128 is reapplied to the area to be cleaned, resulting in optimized manageability.
- the suction cleaning device 10 has a power consumption of the order of 90 W.
- a liquid separator 176 which is shown in a sectional view in Figure 12, comprises a chamber 178 with a peripheral wall 180.
- Chamber 178 is frusto-conical in shape.
- the peripheral wall 180 is inclined about an axis 182 which is coaxial with an axis of rotation.
- An imaginary tip of the truncated cone lies away from a central tube 184 .
- one outlet opening 184 for liquid is formed in the peripheral wall 180 (at least) in the peripheral wall 180 (at least) in the peripheral wall 180 (at least) one outlet opening 184 for liquid is formed. This leads to a receiving tank for liquid accordingly the receiving tank 46.
- the chamber 178 is formed with the peripheral wall 180 rotationally symmetrical to the axis 182 (up to the outlet opening 184).
- the outlet opening 184 is located, with preferably a single outlet opening 184 being provided, in relation to the axis 182 and corresponding to the axis of rotation geometrically below this axis 182 (in relation to the direction of gravitation g) as described above in connection with the suction cleaning device 10.
- a feed portion 186 is formed in the manner of an inclined plane. This feed area extends, in particular, over at least 80% of an internal height of chamber 178 parallel to axis 182.
- a type of funnel is formed over the supply area 186 , liquid then being able to be discharged through the outlet opening 184 .
- gravitationally driven liquid can flow to the outlet opening 184 .
- liquid separator 176 functions as described above with reference to the liquid separator 52 .
- a chamber 190 with a peripheral wall 192 is provided.
- the chamber 190 is designed to be rotationally symmetrical to an axis 194 which is coaxial to an axis of rotation of an impeller which is arranged in the chamber 190 .
- the chamber 190 has the shape of a combination of two truncated cones, where in imaginary cone tips on the axis 194 on both sides of the chamber 190 lie.
- the peripheral wall 192 has a first region 196 and a second region 198 . These are inclined at the same angle but with different signs to the axis 194 and collide in an area of the maximum diameter of the chamber 190 with one another.
- this outlet opening 200 lies below the axis 194, in particular in relation to the direction of gravity.
- the outlet opening 200 is located at a transition from the first area 196 to the second area 198.
- a supply area 202 for liquid to the outlet opening 200 which has a first inclined area 204 and a second inclined area 206 includes.
- a funnel is thereby formed, whereby liquid can then flow to the outlet opening 200 driven by gravity at the first inclined area 204 and the second inclined area 206 .
- the outlet opening 200 represents a type of collection area.
- liquid separator 188 is constructed in the same way as the liquid separator 52 and functions in the same way.
- a chamber 210 is provided in a further exemplary embodiment of a liquid separator, which is shown schematically in a sectional illustration in FIG. 14 and is denoted by 208.
- a dip pipe 212 for discharging (dry) air opens into the chamber 210 .
- the dip tube 212 is oriented transversely and, for example, perpendicularly to an axis 214 of the chamber 210 , the axis 214 being coaxial with a corresponding axis of rotation of an impeller arranged in the chamber 210 .
- Air is then discharged transversely to the axis 214 via the dip tube 212 .
- the dip tube 212 opens into a region within the chamber 210 in which there is a minimal amount of liquid droplets.
- liquid separator 208 functions as described above with reference to the liquid separator 52 .
- a further exemplary embodiment of a liquid separator 216 which is shown in a sectional illustration in FIG. 15, comprises a chamber 218.
- the dip tubes 220 , 222 are oriented parallel to one another and parallel to a central tube 224 .
- the central tube 224 lies between the dip tube 220 and the dip tube 222.
- dry air can be discharged from the chamber 218 at a number of points (ie at least two points).
- liquid separator 216 functions as described above with reference to the liquid separator 52 .
- Components of the liquid separators 176 and/or 188 and/or 208 and/or 216 can also be combined with one another.
- a funnel-shaped configuration of the peripheral wall 180 or 192, as described with reference to the liquid separators 176 and 188, can also be achieved with a transversely arranged dip tube 212, as with the liquid separator 208, or with a plurality of dip tubes 220, 222, as with the liquid - Separator 216 described, are combined.
- a plurality of transverse immersion tubes 212 can also be provided.
- a liquid separator 52 with an integrated suction unit device 50 and in particular with an impeller 66 designed as an impeller and preferably at least one outlet opening 94 for liquid, which is arranged on a peripheral wall 56, can also be used in other suction cleaning devices as an extraction device .
- FIG. 16 shows a window cleaner 226 as a second exemplary embodiment of a suction device according to the invention.
- This has a stripper 230 as the active device, which includes spaced lips. Between the sen a suction port 232 is formed.
- This suction opening 232 is in fluid communication with a liquid separator according to the invention, such as the liquid separator 52.
- a liquor of dirt is wiped off a window to be cleaned via the wiper 230 and sucked in at the same time.
- the sucked-in dirt liquor is loaded with air.
- liquid containing dirt is separated and dry air is separated.
- the dirt-laden liquid is received in a receiving tank corresponding to the receiving tank 46 .
- this holding tank is indicated by the reference number 234.
- a further exemplary embodiment of a suction cleaning device is a floor cleaning device 236, as shown schematically in FIG.
- the floor cleaning device has a cleaning head 238 on which at least one cleaning roller unit 240 is arranged.
- the cleaning roller unit comprises one or more rotating cleaning rollers, for example made of a textile material.
- the cleaning roller unit 240 is driven in rotation by a corresponding drive.
- cleaning liquid is applied to the cleaning roller unit 240 or the floor to be cleaned is applied directly to cleaning liquid.
- the cleaning liquid is usually fresh water, optionally with the addition of a tenside cleaning agent.
- the cleaning roller unit 240 constitutes an effector for an area to be cleaned.
- a liquid separator corresponding to the liquid separator 52 is provided for this purpose. This is arranged, for example, on a body 242 on which in turn the cleaning head 238 is seated.
- the air-laden dirt liquor is coupled into the liquid separator 52 in one or more channels from the cleaning roller unit 240 .
- the air-laden dirt liquor is indicated in FIG. 17 with reference number 244 .
- the delivery of dry air is indicated by the arrow with reference number 246 .
- the liquid separator also forms the suction unit device for sucking in the air-laden dirt liquor 244.
- Separated liquid is coupled to a liquid holding tank 248 .
- the floor cleaning device 236 is in particular hand-held. It is provided with a holding device 250 with a loop handle 252 . A standing operator can hold the holding device 52 and guide the cleaning head 238 over the floor to be cleaned.
- List of reference symbols Suction cleaning device housing housing interior first housing wall second housing wall first partition wall second partition wall top front bottom rear side handle handle opening first web second web third web wall switch holding tank for liquid direction suction unit device area to be cleaned liquid separator chamber peripheral wall chamber interior first front cover second front cover impeller axis Pivot bearing Rotational axis Drive motor Motor housing Battery device Central tube Interior area Collar Ring web Main direction of flow Deflection Blade Outlet opening for liquid Effective device Inlet opening Boundary wall Wedge element Wedge tip Direction of rotation Socket Bottom wall Side wall Cover wall Counter-element Longitudinal direction First area Second area Third area Annular space Dip tube Outlet opening Front side collar
- Air release device a boundary wall inside b boundary wall outside
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020118595.2A DE102020118595A1 (de) | 2020-07-14 | 2020-07-14 | Saug-Reinigungsgerät und Verfahren zum Betreiben eines Saug-Reinigungsgeräts |
| PCT/EP2021/068225 WO2022012957A1 (de) | 2020-07-14 | 2021-07-01 | Saug-reinigungsgerät und verfahren zum betreiben eines saug-reinigungsgeräts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4181750A1 true EP4181750A1 (de) | 2023-05-24 |
Family
ID=76859608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21740000.1A Pending EP4181750A1 (de) | 2020-07-14 | 2021-07-01 | Saug-reinigungsgerät und verfahren zum betreiben eines saug-reinigungsgeräts |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20230165418A1 (de) |
| EP (1) | EP4181750A1 (de) |
| JP (1) | JP2023534215A (de) |
| CN (1) | CN116194023A (de) |
| DE (1) | DE102020118595A1 (de) |
| WO (1) | WO2022012957A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12459720B2 (en) | 2017-09-15 | 2025-11-04 | Omachron Intellectual Property Inc. | Non-cyclonic momentum separator and a surface cleaning apparatus |
| USD1025521S1 (en) * | 2021-11-16 | 2024-04-30 | Bissell Inc. | Portable carpet cleaner |
| CN115388224B (zh) * | 2022-07-11 | 2025-08-05 | 广东维尔科技股份有限公司 | 一种清洗机污水箱阀门自动开闭的装置结构 |
| CN116236111A (zh) * | 2022-10-24 | 2023-06-09 | 北京顺造科技有限公司 | 具有分离装置的表面清洁设备 |
| WO2024184416A1 (de) * | 2023-03-09 | 2024-09-12 | Robert Thomas Metall- Und Elektrowerke Gmbh & Co. Kg | Sauger und reinigungsverfahren |
| WO2025010496A1 (en) * | 2023-07-07 | 2025-01-16 | Omachron Intellectual Property Inc. | Non-cyclonic momentum separator and a surface cleaning apparatus |
| CN121263117A (zh) | 2024-03-04 | 2026-01-02 | 尚科宁家运营有限公司 | 手持表面清洁器 |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1264002A (en) | 1985-09-05 | 1989-12-27 | David P. Garner | Surface cleaning apparatus |
| JPS6377558A (ja) * | 1986-09-18 | 1988-04-07 | Mitsubishi Electric Corp | 気液分離装置 |
| FI86333C (fi) * | 1988-04-11 | 1992-07-10 | Ahlstroem Oy | Foerfarande och anordning foer separering av gas med pumpen ur mediet som skall pumpas. |
| US5599401A (en) | 1994-08-04 | 1997-02-04 | Jancar Industries, Inc. | Portable, hand-held, self-contained multi-surface, hydro-cleaning apparatus |
| US6550098B2 (en) | 1997-12-05 | 2003-04-22 | Bissell Homecare, Inc. | Extraction cleaner with tank retention |
| FR2909275B1 (fr) | 2006-12-01 | 2010-12-17 | Gerard Curien | Appareil d'aspiration et de nettoyage eau et/ou poussieres |
| US7628836B2 (en) * | 2006-05-08 | 2009-12-08 | Hamilton Sundstrand Corporation | Rotary drum separator system |
| JP4910809B2 (ja) * | 2007-03-20 | 2012-04-04 | 株式会社デンソー | 遠心式送風機 |
| EP2332455A1 (de) | 2009-12-10 | 2011-06-15 | Koninklijke Philips Electronics N.V. | Staubsauger |
| GB2489408B (en) | 2011-03-23 | 2015-08-05 | Techtronic Floor Care Tech Ltd | Suction cleaner |
| DE102012110765A1 (de) | 2012-11-09 | 2014-05-15 | Vorwerk & Co. Interholding Gmbh | Saugreinigungsgerät, Flüssigkeitsabscheider und Verfahren zur Flüssigkeitsabscheidung |
| CN103445717B (zh) | 2013-01-25 | 2016-06-08 | 金华市高就机电设备有限公司 | 便携式表面清洁用抽吸装置 |
| DE102013105536A1 (de) | 2013-05-29 | 2014-12-04 | Vorwerk & Co. Interholding Gmbh | Gebläserad |
| US9259675B2 (en) * | 2013-11-11 | 2016-02-16 | Andover Protection Systems, Llc | Centripetal separation system for cleaning particulate-pervaded air or gas |
| EP3073882A1 (de) * | 2013-11-28 | 2016-10-05 | Alfred Kärcher GmbH & Co. KG | Zyklon-abscheidervorrichtung |
| CN105286732A (zh) * | 2014-07-01 | 2016-02-03 | 张周新 | 一种水洗清洁装置 |
| CN104083130B (zh) * | 2014-07-01 | 2017-01-04 | 张周新 | 一种墙壁清洗装置 |
| WO2016054943A1 (zh) | 2014-10-09 | 2016-04-14 | 厦门唯科健康科技有限公司 | 一种用于硬表面清洁的清洁机及其清洁方法 |
| WO2016054944A1 (zh) | 2014-10-09 | 2016-04-14 | 厦门唯科健康科技有限公司 | 硬表面真空清洁机及其清洁方法 |
| CN205597855U (zh) * | 2016-04-08 | 2016-09-28 | 苏州爱普电器有限公司 | 地面清洗机 |
| KR102661282B1 (ko) | 2016-10-18 | 2024-04-25 | 엘지전자 주식회사 | 에어 송풍기능을 갖는 잔수 흡입 장치 |
| CN206777277U (zh) * | 2016-11-24 | 2017-12-22 | 莱克电气绿能科技(苏州)有限公司 | 具有污水分离结构的手持式擦窗机 |
| JP6784167B2 (ja) * | 2016-12-19 | 2020-11-11 | 株式会社Soken | 遠心送風機 |
-
2020
- 2020-07-14 DE DE102020118595.2A patent/DE102020118595A1/de active Pending
-
2021
- 2021-07-01 WO PCT/EP2021/068225 patent/WO2022012957A1/de not_active Ceased
- 2021-07-01 JP JP2023501597A patent/JP2023534215A/ja active Pending
- 2021-07-01 EP EP21740000.1A patent/EP4181750A1/de active Pending
- 2021-07-01 CN CN202180060627.4A patent/CN116194023A/zh active Pending
-
2023
- 2023-01-13 US US18/154,526 patent/US20230165418A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN116194023A (zh) | 2023-05-30 |
| WO2022012957A1 (de) | 2022-01-20 |
| US20230165418A1 (en) | 2023-06-01 |
| JP2023534215A (ja) | 2023-08-08 |
| DE102020118595A1 (de) | 2022-01-20 |
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