EP3763263A1 - Aspirateur portatif - Google Patents

Aspirateur portatif Download PDF

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Publication number
EP3763263A1
EP3763263A1 EP19186081.6A EP19186081A EP3763263A1 EP 3763263 A1 EP3763263 A1 EP 3763263A1 EP 19186081 A EP19186081 A EP 19186081A EP 3763263 A1 EP3763263 A1 EP 3763263A1
Authority
EP
European Patent Office
Prior art keywords
suction
suction material
guide element
material guide
portable
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
Application number
EP19186081.6A
Other languages
German (de)
English (en)
Inventor
Michael WINDRICH
Thomas TRUMMER
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.)
Leifheit AG
Original Assignee
Leifheit AG
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 Leifheit AG filed Critical Leifheit AG
Priority to EP19186081.6A priority Critical patent/EP3763263A1/fr
Publication of EP3763263A1 publication Critical patent/EP3763263A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L1/00—Cleaning windows
    • A47L1/02—Power-driven machines or devices
    • A47L1/05—Hand apparatus with built-in electric motors

Definitions

  • the invention relates to a portable suction device according to the preamble of claim 1.
  • the invention relates to a portable suction device with a suction channel opening into a suction nozzle and with a housing, a suction material container and a suction unit for generating a suction flow which creates a suction negative pressure applied to the suction nozzle provides, and with a separation device which is able to split the suction flow sucked in via the suction nozzle into an exhaust air flow flowing out of the suction device and into suction material in the form of particles and / or fluid components, the separated particles or fluid components being collected in the suction material container.
  • these devices also have a pull-off lip for pulling off liquids, the pull-off lip being arranged on the suction nozzle.
  • these devices are usually battery-operated and are held in the hand of a user while the user guides the pull-off lip along the surface to be vacuumed.
  • Portable devices of this type are among others from the document EP 2 845 530 B1 known.
  • the known suction devices are used to suck up a liquid / air mixture. As in the case of the device mentioned, this can be done for sucking up liquid, for example from a flat surface such as a table top, window panes or tiles.
  • a pull-off lip arranged on the suction nozzle is usually provided for residue-free cleaning of the surfaces.
  • the suction material is stored in a suction material container and must therefore be separated from the suction flow from the air flow.
  • the known separation devices of the portable suction devices use baffle plates and air deflectors to separate the suction material from the suction flow. Due to its inertia, the suction material cannot follow the narrow air deflections and runs into the area of the suction material container, where there is usually no air flow.
  • the devices often also have a suction pipe that is in fluidic connection with the suction unit and protrudes from the side of the suction unit into the suction material container. To prevent the suction material from escaping To avoid as much as possible from the suction material container via the suction pipe, the devices also provide intermediate storage areas which are formed around the suction pipe protruding into the suction material container.
  • the separation via a baffle wall promotes foam formation in liquids, which can lead to a layer of foam building up in the separation area and preventing the separated liquid or suction material from running off.
  • foam formation in liquids can lead to a layer of foam building up in the separation area and preventing the separated liquid or suction material from running off.
  • Such a build-up in turn leads to the fact that liquid gets into the suction tube and thus leads out of the air outlets as splashes and drops from the device.
  • the known devices with an intake pipe and intermediate storage areas also require a certain amount of installation space around the intake pipe. This is to avoid that when the suction device is pivoted, separated water or suction material can get into the suction flow and thus express itself in the form of spray water from the ventilation outlets of the device. This can be reduced or avoided by making the separation area and / or the intermediate storage areas larger, but this leads to an undesirably larger suction device overall.
  • the document also describes FR 3 019 997 One-piece rotors that have a rotary separator with a wing contour protruding into the suction flow on the suction side. While the air can flow through the separation blades without major impairment, the more inert suction material, in particular the more inert water droplets, are knocked out of the air flow and separated. However, this disadvantageously results in an atomization of the drops, so that a residual amount of the atomized Liquid is entrained by the air flow and carried out of the device via the rotor. This then makes itself noticeable to the user in an unwanted way as a spray mist.
  • the object of the invention is therefore to provide a portable suction device which, with a compact design and at the same time efficient operation, enables high separation of the sucked-in suction material.
  • the separation device is at least two-stage, comprising a suction material guide element and a rotary separator, the suction material guide element being arranged in the flow direction as a continuation of the suction channel and set up to partially discharge suction material.
  • the rotary separator is arranged in the direction of flow behind the suction channel and aligned in the direction of the suction channel and is designed to separate the suction material that is not separated via the suction material guide element.
  • the suction material guide element forms a first stage of separation and the rotary separator forms a second stage of separation.
  • the solution according to the invention enables the suction device to have a smaller design, since in particular the air deflections required in the solutions from the prior art are not required and the necessary safety clearances in the area of the separation device can be reduced.
  • the two-stage separation and in particular the omission of the baffle plates or the air deflectors prevent the formation of foam and the associated escape of suction material from the device.
  • the separation device has a cover element with an opening, and the rotary separator extends through the opening in the direction of the suction nozzle.
  • the cross-sectional area of the rotary separator can be tapered in the direction of the suction nozzle, preferably adapted to the flow.
  • the cover element can preferably also be part of the suction unit housing.
  • the cover element preferably has an inlet connection facing the suction nozzle around the opening.
  • the connector can advantageously be designed in such a way that suction material impinging there is directed away from the opening, which is preferably designed as an exhaust air opening.
  • the inlet connector can be shaped conically tapering towards the suction nozzle.
  • This configuration of the cover element is advantageous in terms of flow technology.
  • the suction material is diverted from the suction unit and thus away from the air outlet.
  • the rotary separator can preferably be part of the suction unit, the suction unit in particular having a fan wheel and the rotary separator being designed in one piece with the fan wheel.
  • a separation chamber can preferably be provided in the suction device according to the invention. This is advantageously arranged between the suction channel and the suction material container, the separation chamber being delimited by the housing of the suction device and the cover element.
  • the separation chamber at least one inlet opening for the suction flow through the suction channel and an exhaust air opening for the exhaust air flow and an outlet opening for the suction material are provided in the part of the suction unit housing.
  • the exhaust air opening is preferably the opening in the cover element through which the rotary separator protrudes.
  • the first stage of separation takes place via the suction material guide element.
  • this can be aligned directly in the direction of the suction material container.
  • the inlet to the suction material container or an upstream suction material guide, which in turn leads to the suction material container, should be arranged below the suction channel for good suction material separation when used as intended in the means of use.
  • the inlet to the suction material container or the upstream one preferably forms Suction material guide the drain opening of the separation chamber.
  • the suction material guide element advantageously has a ramp-shaped shape.
  • the higher inertia of the suction material is used in comparison to air flow.
  • the suction material guide element is designed in such a way that the suction material is guided in a direction that differs from the suction material flow. The more inert suction material is guided along the suction material guide element due to its higher mass inertia and gravity, whereas the air is sucked out of the suction flow by the suction unit. The adhesion of the liquid suction material to the suction material guide element is also supported by the acting surface forces.
  • the suction material container has an inlet opening indirectly via a suction material guide or directly.
  • the cover element has a further opening corresponding to the inlet opening of the suction material container, the inlet opening being formed in particular indirectly via an inlet of a suction material guide.
  • the further opening can be the previously mentioned drainage opening from the separation chamber.
  • the cover element with the further opening seals the inlet opening of the suction material container from the environment.
  • the inlet opening is advantageously formed indirectly via an inlet of a suction material guide.
  • the surface of the suction material guide element has a hydrophilic material so that in particular liquid suction material adheres better to the suction material guide element and does not come off unintentionally and preferably follows a change of direction by the suction material guide element.
  • the suction material guide element can also be designed in such a way that the suction material is guided in a direction that differs from the suction material flow.
  • the suction material guide element can be designed in such a way that an undesired detachment of the suction material is prevented and / or the discharge of the suction material is improved.
  • the suction material guide element can for example have ribs and / or both raised and / or recessed surface structures.
  • one or more detachment sections can be provided in the area of the suction channel and / or the suction material guide element, which are designed to detach the suction material in a controlled manner from the surface of the suction channel and / or the surface of the suction material guide element and to guide it away from the suction unit and the rotary separator. This can be done, for example, by means of notches and / or bulges and / or guide vanes or guide ribs.
  • Such flow guide elements can also be designed in such a way that the suction flow is impressed with a swirl by the flow guide elements.
  • the suction material guide element preferably has an opening in the area of the drain opening from the separation area or the separation chamber, which is designed to prevent suction material from collecting in an area covered by the suction material guide element and / or to prevent the suction material from flowing back out of the separation area or the To prevent separation chamber over the suction material guide when pivoting, in particular by 180 °.
  • the opening is particularly preferably designed in a U-shape.
  • the suction material guide element can preferably be designed as a separate part.
  • the suction material guide element has, in particular, a releasable clamping and / or snap connection, correspondingly cooperating with the suction channel.
  • the suction material guide element can also be designed as part of the housing of the suction device.
  • an anti-reaching device can be provided in the area of the suction channel.
  • the protection against reaching in can preferably also be designed as part of the suction material guide element.
  • a filter element can be provided in the area of the suction channel.
  • the filter element can in particular be detachably connected to the suction channel and / or the suction material guide element and / or be formed by the suction material guide element and / or be designed as a protection against reaching in. This helps to keep coarse soiling, such as hair, away from the suction device and in particular from the rotating parts of the suction unit.
  • the shape of the suction device is designed in such a way that the suction device is located on the one opposite to the suction nozzle End portion extends into a handle of the suction device.
  • the suction device 2 is shown in a side view.
  • the suction device 2 is designed as a hand-operated window vacuum.
  • the suction device 2 comprises in the front area a suction nozzle 4 designed as a flat nozzle with pulling lips 5 arranged above and below the flat nozzle opening, which is detachably arranged via a clamp connection on a beak-shaped receptacle 62 formed from two parallel planes.
  • the suction device 2 has a suction and separation area adjoining the suction nozzle 4, a suction unit 10, a suction material container 8 and a closure 42.
  • the aforementioned components are accommodated in a housing 6 of the suction device 2.
  • the suction device 2 is initially shaped like a bulb in the area of the separation area and the suction unit 10 and then extends into a rear area which forms a handle 48.
  • the handle 48 closes with the lock 42 at the distal end.
  • the suction material container 8 is largely located in the handle 48 and extends to the end of the handle 48.
  • an opening 40 is provided in the suction material container 8, which is sealed against the escape of suction material, in particular water, by the closure 42.
  • the housing 6 of the suction device 2 is constructed in several parts. It comprises an upper shell 64 which has ventilation slots 66 for the flow of exhaust air and a recess for an actuation button 68 for switching the device 2 on and off.
  • the upper shell 64 of the housing 6 is placed on a lower part of the housing.
  • the lower part of the housing forms part of the handle 48 as a handle shell 70, the handle 48 being made in several parts.
  • the handle shell 70 in turn simultaneously forms a lower boundary of the suction material container 8.
  • the suction and separation areas are each received by a front part of the housing 6, which also forms the receptacle for the suction nozzle 62.
  • the shape of the suction device 2 is designed in such a way that the device 2, when it is placed on a flat storage surface 72, is accommodated by two storage areas.
  • the first storage area is formed by the lower part of the handle shell 70, on which two feet are provided as storage elements 74.
  • the two storage elements 74 are arranged on both sides at a distance from a longitudinal axis of the suction device 2.
  • a part of the lock 42 forms the second storage area.
  • the two storage elements 74 allow the suction device 2 to be placed on the flat storage surface 72 in a stable manner.
  • the storage areas are arranged on the suction device 2 in such a way that the suction nozzle 4 and in particular the pull-off lip 5 are spaced apart from the flat storage surface 72.
  • Both the outer area of the closure 42 and the storage elements 74 designed as feet are made from a soft material, in particular from a rubber-like material. In this way, in addition to a stable and surface-friendly state of the device 2 when the device 2 is switched off, damage when using the device 2, if the device 2 does not come into contact with the surface to be cleaned or the surfaces around it, is avoided.
  • FIG. 4 shows a perspective view of the suction device 2 from FIG Figure 1 .
  • the upper part of the receptacle of the suction nozzle 62 can be seen, in which the suction nozzle 4, which is designed as a flat nozzle, is detachably inserted via the clamp connection. Due to the releasable connection, other suction nozzles can also be used in the intake of the suction nozzle, depending on the area of application.
  • the closure 42 continuing the outer contour of the device 2 is shown spaced apart from the suction device 2 in the dismantled state.
  • the closure 42 has a gripping area at the end, which is formed by a raised edge in the form of a retaining bead 76 in the rear area.
  • FIG. 3 shows another view of the suction device 2 according to the invention from the previous figures.
  • the suction device 2 is shown with a cut-free separation area and without an upper housing shell 64 and without a closure 42.
  • the suction material sucked in by the suction nozzle 4, not shown, is transferred into the separation area via a suction channel 3 arranged in the receptacle for the suction nozzle 62, and separated from the exhaust air flow by the separation device 12 and transferred into an inlet opening 36 arranged in the lower part of the suction device 2.
  • the inlet opening 36 leads into the suction material guide 30, via which the suction material is in turn directed into the suction material container 8.
  • the individual components of the separation device 12 can be seen in the cut-free area, which comprises a ramp-shaped suction material guide element 14 and a rotary separator 16.
  • the rotary separator 16 is connected in one piece to the fan wheel 11 of the suction unit 10.
  • the separation area is designed as a separation chamber 18.
  • the delimitation forming the separation chamber 18 is designed in two parts.
  • the first part is formed by a cup-shaped first delimiting element 92, in the bottom area of which the beak-shaped receptacle for the suction nozzle 62 is also formed.
  • the cup-shaped delimiting element 92 is at the same time also part of the suction device housing 6.
  • the second part of the separation chamber delimitation is formed by a cover element 94, which is formed as a plate-shaped delimiting element and is connected to the cup-shaped delimiting element 92.
  • the cover element 94 has two openings.
  • the rotary separator 16 which is integrally connected to the fan wheel 11, is arranged in the first opening, which is arranged centrally in the cover element and is an exhaust air opening.
  • the second opening is an outlet opening of the separation chamber 18 and is at the same time the inlet opening 36 into the suction material guide 30.
  • the Figure 4 shows the suction device according to the invention again Figure 3 with separation chamber 18, but in the present case with uncut cover element 94.
  • screw openings 96 via which the delimitation element is connected to an intermediate element 23 designed as a component carrier for the suction unit.
  • the cup-shaped delimitation element of the separation area 92 has openings corresponding to the screw openings 96, via which the cup-shaped delimitation element 92 is connected to the cover element 94, the intermediate element 23 and the cover element 27 and the grip shell 70.
  • a sealing element 58 designed as a sealing ring is injection-molded onto the cover element 94, which in the assembled state interacts with a sealing groove 59 provided on the cup-shaped delimiting element 92 and seals the two components against the escape of liquid.
  • the side view of the suction device 2 from the previous figures with a sectioned suction and separation area shows Figure 5 .
  • the upper housing shell 64, the closure 42 and the suction nozzle 4 that can be plugged into the beak-shaped receptacle 62 are not shown.
  • the suction channel 3 extends into the separation chamber 18.
  • the separation chamber 18 is formed by the cup-shaped delimiting element 92 and the cover element 94, the first delimiting element 92 forming part of the housing of the suction device 6.
  • the suction channel 3 extends at least partially into the separation chamber 18.
  • the suction channel 3 has two clamping lugs which extend into the separation chamber 18.
  • a suction material guide element 14 is clamped onto the suction duct 3 as a separate part via the clamping lugs of the suction duct 3 and initially has an opening area which forms an extension of the suction duct 3.
  • the suction material guide element 14 has a ramp-shaped shape and bends after the mouth area in the direction of the inlet opening 36 of the suction material guide. As a result of the design, the suction material is guided in a direction deviating from the suction material flow because of its inertia and the force of gravity acting on the suction material.
  • a reach-in guard 21 is arranged inside the suction material guide element 14.
  • the plate-shaped cover element 94 has a conical inlet connection 20 on the side facing the suction nozzle 4.
  • FIG. 6 A more detailed section of the suction and separation area is shown in Figures 6 and 7th , in sectional views.
  • the suction channel 3 has the transition to Separation chamber 18 has a taper.
  • the taper is formed on the underside and on the top of the suction channel 3 by a web-shaped wall 97, the wall being rounded on the suction nozzle side.
  • a support surface 99 is provided below the web-shaped wall 97 in the suction channel 3, on which the suction material guide element 14 is supported when the clamping connection is clamped as intended.
  • two retaining projections 98 are provided on the underside, which engage below the support surface 99 and further support the suction material guide element 14.
  • the ramp-shaped suction material guide element 14 has, in the region of the inlet opening 36, a U-shaped opening which is open in the direction of the inlet opening 36 and extends centrally into the suction material guide element 14. This is provided so that no suction material can collect behind the suction material guide element 14 and can flow through the inlet opening 36 into the suction material container 8.
  • the opening prevents sucking material flowing back from an overfilled suction material container 8 from being able to exit the suction nozzle 4 via the ramp-shaped suction material guide element when it is held upside down.
  • the Sauggutleitelement 14 is in the Figures 6 and 7th cut only half shown. In principle, however, other shapes are also possible which are designed to prevent the suction material that otherwise collects behind the suction material guide element 14 from flowing out and to achieve good drainage.
  • the two parts of the separation chamber 18 are connected to one another in a sealing manner against the escape of suction material.
  • the sealing element 58 already described, which as a circumferential, on The sealing ring molded onto the cover element is designed and cooperates with the corresponding sealing groove 59 in the first delimiting element 92 can be seen.
  • a sealing groove 59 for sealing the inlet opening 36 is provided on the side of the second delimiting element 94 facing away from the suction nozzle 4.

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EP19186081.6A 2019-07-12 2019-07-12 Aspirateur portatif Pending EP3763263A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19186081.6A EP3763263A1 (fr) 2019-07-12 2019-07-12 Aspirateur portatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19186081.6A EP3763263A1 (fr) 2019-07-12 2019-07-12 Aspirateur portatif

Publications (1)

Publication Number Publication Date
EP3763263A1 true EP3763263A1 (fr) 2021-01-13

Family

ID=67262193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19186081.6A Pending EP3763263A1 (fr) 2019-07-12 2019-07-12 Aspirateur portatif

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EP (1) EP3763263A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114468887A (zh) * 2021-12-15 2022-05-13 北京顺造科技有限公司 用于湿式表面处理装置的分离器及湿式表面处理装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103445718A (zh) * 2013-01-25 2013-12-18 孙宇航 便携式表面清洁用抽吸装置的水气分离组件
EP2845530A1 (fr) 2013-09-05 2015-03-11 Leifheit Ag Appareil d'aspiration portable pour liquides ou mélanges liquide/air
DE102013021277A1 (de) 2013-12-17 2015-07-02 Nilfisk-Advance A/S Tragbares Hartflächenabsauggerät
FR3019997A1 (fr) 2014-04-17 2015-10-23 Ecodrop Turbine pour appareil d'aspiration et de separation air/liquide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103445718A (zh) * 2013-01-25 2013-12-18 孙宇航 便携式表面清洁用抽吸装置的水气分离组件
EP2845530A1 (fr) 2013-09-05 2015-03-11 Leifheit Ag Appareil d'aspiration portable pour liquides ou mélanges liquide/air
DE102013021277A1 (de) 2013-12-17 2015-07-02 Nilfisk-Advance A/S Tragbares Hartflächenabsauggerät
FR3019997A1 (fr) 2014-04-17 2015-10-23 Ecodrop Turbine pour appareil d'aspiration et de separation air/liquide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114468887A (zh) * 2021-12-15 2022-05-13 北京顺造科技有限公司 用于湿式表面处理装置的分离器及湿式表面处理装置

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