EP3541258B1 - Sauger - Google Patents

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Publication number
EP3541258B1
EP3541258B1 EP16795340.5A EP16795340A EP3541258B1 EP 3541258 B1 EP3541258 B1 EP 3541258B1 EP 16795340 A EP16795340 A EP 16795340A EP 3541258 B1 EP3541258 B1 EP 3541258B1
Authority
EP
European Patent Office
Prior art keywords
sealing
blower
holder
vacuum cleaner
recess
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.)
Active
Application number
EP16795340.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3541258A1 (de
Inventor
Markus ÖSTERLE
Maic Hensel
Heiner Kühn
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP3541258A1 publication Critical patent/EP3541258A1/de
Application granted granted Critical
Publication of EP3541258B1 publication Critical patent/EP3541258B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A47L9/22—Mountings for motor fan assemblies
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • 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
    • 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

Definitions

  • the invention relates to a teat which is suitable for sucking up liquids.
  • the invention is based on the object of providing a vacuum cleaner of the type mentioned at the outset, which has a compact design and which has a high level of operational reliability.
  • a housing is provided, a blower device is provided which is arranged horizontally in the housing, the blower device comprising a blower motor and at least one impeller and a first area of the blower device in a motor area of the housing and a second area of the fan device is arranged in a suction area of the housing, a holder is provided for the fan device by which the fan device is held in the housing, and a sealing device is provided which separates the motor area from the suction area in a fluid-tight manner wherein the sealing device rests fluid-tight on the fan device with a first sealing area and rests fluid-tight on the holder with a second sealing area.
  • the horizontal arrangement of the fan device in the housing results in an optimal use of space.
  • the corresponding suction cup can be made compact. It can be designed with a minimized number of components, so that it can in turn be manufactured relatively easily with simple assembly.
  • the motor area is an "electrical" area of the vacuum cleaner. For example, electrical connections for the fan motor and further electrical or electronic components are arranged in the motor area.
  • a holder is provided on which the sealing device is fixed.
  • the sealing device ensures a liquid-effective, fluid-tight seal with respect to the holder.
  • the fan device is in turn seated on the sealing device.
  • the sealing device ensures a fluid-effective seal with respect to the blower device.
  • the sealing device with its first sealing area and its second sealing area thereby holds the fan device in a fluid-tight manner on the holder.
  • a high sealing effect can thereby be achieved and the suction cup can be designed to be compact.
  • the number of components for fastening the fan device in the housing can be kept low.
  • a press fit of the sealing device on the holder and a press fit of the blower device on the sealing device (and possibly further support elements in the housing) can be used to easily fix the blower device to the suction device.
  • a floating mounting of the fan device can be implemented in a simple manner by means of the sealing device.
  • the first sealing area is designed as a radial seal, for example.
  • the second sealing area is designed, for example, as a radial-axial seal.
  • the holder is or comprises a wall in the housing and, in particular, is connected in one piece to the housing.
  • a compact design of the suction cup can thereby be achieved.
  • the number of components can be kept low.
  • the at least one impeller is positioned in the suction area. It is positioned, so to speak, on the other side of the sealing device, the motor area being positioned on this side of the sealing device.
  • the holder has a recess in which the sealing device is positioned. This allows the fan device to be held in the housing in a simple manner. A high sealing effect can be achieved.
  • the recess is open on a transverse side and / or is U-shaped or V-shaped.
  • the fan device and the sealing device can be fixed to the holder in a simple manner.
  • the sealing device is inserted, it is possible in a simple manner to generate a preload which ensures an increased sealing effect.
  • the recess tapers along a height axis and in particular has a width transversely to the height axis, which decreases in size along the height axis in one direction and in particular decreases in size away from the transverse side. In this way, when the sealing device is inserted into the recess, a prestress can be generated in order to achieve a high level of fluid tightness.
  • the recess of the holder is designed such that the sealing device can be inserted into the recess in an insertion direction parallel to a height axis of the recess of the holder.
  • the number of components that are necessary for fixing the fan device in the housing can thereby be minimized.
  • the sealing device is designed to be elastic and in particular sits in a press fit in the recess of the holder. A pretensioning force can thereby be generated which increases the sealing effect of the sealing device on the second sealing area.
  • the sealing device is designed in one piece. This results in a high degree of sealing reliability with ease of manufacture, both in relation to the sealing device and in relation to the teat.
  • the sealing device has a recess in which the fan device is seated, the first sealing area being formed on a boundary wall of the recess of the sealing device.
  • a radial seal can be implemented in a simple manner, which produces a seal around the fan device.
  • this allows the fan device to be positioned and fixed in the housing.
  • a floating mounting of the fan device in the housing can be implemented in a simple manner.
  • first sealing area and / or the second sealing area has a plurality of spaced apart and, in particular, parallel spaced apart sealing ribs, which are provided to rest against the counter-element.
  • Each sealing rib so to speak, forms its own seal, with several seals being connected in series through the plurality of sealing ribs. If a seal (corresponding to a sealing rib) should fail (for example due to leakage), then the other sealing ribs still have their sealing function. This results in a high level of redundancy in terms of the seal and thus a correspondingly high level of protection against failure.
  • the sealing ribs have a direction which is oriented transversely and in particular perpendicular to an axis of rotation of the fan motor.
  • the course direction is a circumferential direction based on an axial direction of the axis of rotation.
  • sealing ribs of the first sealing area are designed to be closed circumferentially. A series connection of several radial seals is thereby realized.
  • the sealing device has a surrounding area for a counter element of the fan device on the first sealing area and / or has a surrounding area for a counter element of the holder on the second sealing area. This achieves a high sealing function.
  • the sealing device is designed to be elastic and in particular the fan device is seated in a press fit on the holder. This results in a high sealing effect due to a corresponding bias.
  • the sealing device has a wall element which has a boundary wall for at least one blow-out duct for process air.
  • the blow-out duct can be formed in a simple manner with the sealing device that is already present and also delimited in a fluid-tight manner so that blow-out air can be blown out in a defined manner at one or more outlets.
  • the wall element protrudes beyond a sealing body of the sealing device, on which a recess for the fan device is formed.
  • a wall element for the blow-out duct can be formed in a simple manner.
  • the suction device has a blower head on which the blower device is arranged.
  • a receptacle is then provided on which the blower head is removably seated.
  • the receiving container has a receiving space into which suction material can be blown directly or into a filter bag.
  • the receptacle can provide a large receptacle volume for wet suction.
  • the sucker has an underside, which is formed in particular on a receptacle, and an upper side, which is in particular formed on a blower head, with a height axis running between the underside and the top and a rotation axis of the fan motor transverse to the height axis lies.
  • a horizontal arrangement of the fan device can thereby be achieved.
  • a setting-up device is provided by means of which the suction device can be set up on a base for proper operation and which has an envelope plane, with an axis of rotation of the fan motor being oriented parallel to or at an acute angle less than or equal to 30 ° to the envelope plane.
  • the envelope level corresponds to the base or an envelope level of the base.
  • a set-up device by means of which the vacuum cleaner can be set up on a base for proper operation, and which comprises a wheel device with a wheel axis, wherein a rotation axis of the fan motor is oriented at least approximately parallel to the wheel axis .
  • a compact and space-saving arrangement for the horizontal fan device in the housing can thereby also be achieved.
  • the engine area includes a flow guide for cooling air. In this way, cooling of the fan motor can be achieved in a simple manner.
  • At least one blow-out duct for process air is connected to the intake area. This makes it easy to blow out process air.
  • the fan device is supported on the housing at a distance from the holder. In addition to the holder, it is then held on the housing via one or more support elements.
  • Such support elements can be implemented in a simple manner. For example, a contact surface is provided against which the fan device can be applied.
  • the fan device can then be fixed in the housing by such a support element (or a plurality of support elements) and the holder without further fastening means and in particular can be mounted in a floating manner.
  • the sealing device is seated on the holder under pretension and / or the fan device is seated on the sealing device under pretension. It can be a high Achieve sealing effect both with respect to the holder and with respect to the fan device.
  • the fan device is floatingly mounted in the housing.
  • a certain vibration decoupling can be achieved between the blower device and the housing in order, in particular, to achieve a reduction in noise with regard to the vacuum cleaner.
  • the floating mounting can be implemented in a simple manner by the sealing device.
  • the vacuum cleaner is designed, for example, as a wet-dry vacuum cleaner, through which both liquids and dry goods can be sucked in.
  • the vacuum cleaner is integrated into a machine such as a roughing machine or sweeper.
  • the vacuum cleaner is designed as a stand-alone device.
  • NT vacuum cleaner wet-dry vacuum cleaner
  • the solution according to the invention is also implemented on a suction device which is integrated into a cleaning machine such as a sweeper or roughing machine.
  • the suction cup 10 comprises a receptacle 12 on which a blower head 14 is detachably seated.
  • a locking device 16 is provided for the releasable fixation of the blower head 14 on the receiving container 12.
  • the receiving container 12 is barrel-shaped with a container bottom 18 on which a container wall 20 is seated.
  • the container wall 20 and the container bottom 18 delimit a receiving space 22 for receiving suction material.
  • the nipple 10 has an underside 24 and an upper side 26 opposite the underside.
  • a height axis 28 runs from the bottom 24 to the top 26.
  • the height axis 28 runs transversely to that of the base 30 and in particular perpendicular to the base 30.
  • a (non-steerable) wheel device 32 is arranged on the receiving container 12 in the region of the underside 24, which wheel device comprises in particular a left rear wheel 34a and a right rear wheel 34b.
  • the left rear wheel 34a and the right rear wheel 34b have a common wheel axle 36 about which they can be rotated together.
  • the wheel axis 36 lies transversely and in particular perpendicular to the height axis 28.
  • a steering roller device 38 with one or more steering rollers is also arranged on the receiving container 12 in the region of the underside 24. (In the embodiment shown, the steering roller device 38 comprises a pair of steering rollers.)
  • the wheel device 32 and the castor device 38 form an erecting device 40, by means of which the suction device 10 can be erected on the base 30 for proper operation.
  • the erection device 40 has an envelope plane 42 which, as it were, forms a support plane for erecting the suction cup 10 on the base 30. If the base 30 is flat, then the envelope plane 42 coincides with this base plane.
  • the height axis 28 lies at least approximately to the envelope plane 42; it can be exactly perpendicular or at a small acute angle, in particular less than 30 °, to the envelope plane 42.
  • the receiving container 12 with its receiving space 22 is designed in such a way that suction material can be received directly in it or that, for example, a filter bag for receiving suction material can be positioned in it. (In a wet mode for sucking in liquid, liquid is usually sucked directly into the receiving space 22 of the receiving container 12.)
  • the blower head 14 is placed on the front side of the receiving container 12.
  • the blower head 14 has an immersion area with which it is immersed in the receiving space 22 of the receiving container 12. Through this immersion area, among other things, a centering of the blower head 14 for the fixation on the receiving container 12 can be carried out.
  • the suction device 10 has a housing 44 for the blower head 14.
  • the receiving container 12 also has a housing with the container bottom 18 and the container wall 20. This housing, together with the housing 44 of the blower head 14, forms an "overall" housing of the suction device 10.
  • a fan device 46 is arranged in the housing 44 of the fan head 14 ( Figures 3 to 6 ).
  • the fan device 46 comprises a fan motor 48 and (at least) one impeller 50.
  • the fan motor 48 is in particular an electric motor.
  • the fan motor 48 has an axis of rotation 52.
  • it has a shaft 54 on which the impeller 50 is seated in a rotationally fixed manner and which is rotatable about the axis of rotation 52.
  • the impeller 50 is rotatable about the axis of rotation 52 in the housing 44.
  • the housing 44 of the blower head 14 has a motor area 56 and a suction area 58.
  • a first area of the blower device 46 is positioned in the motor area 56 and a second area is positioned in the intake area 58.
  • the blower device 46 generates a negative pressure flow (suction flow) which acts on the receiving space 22 of the receiving container 12 via the suction region 58.
  • a suction hose can be connected to the receiving space 22 in a fluid-effective manner.
  • a suction nozzle is arranged on the receiving container 12, to which a suction hose can be connected.
  • connection 60 for a suction hose is positioned on the blower head 14 on the housing 44.
  • This connection 60 is arranged in particular on the upper side 26.
  • a pipe 62 is connected to the connection 60 and runs through the blower head 14 into the receiving space 22 ( Figure 4 ). It protrudes with a lower end 64 into the receiving space 22.
  • the tube 62 is oriented at least approximately parallel to the height axis 28.
  • the suction area 58 in the blower head 14 is in fluid connection with the receiving space 22.
  • the receiving space 22 can be subjected to a corresponding negative pressure.
  • a suction effect can then be achieved via the pipe 62 and a suction hose connected to the connection 16 (on which one or more suction pipes and possibly a suction nozzle may also be arranged).
  • Suction material is then sucked into the receiving space 22 via the connection 60 and the pipe 62, driven by the suction flow generated by the blower device 46 and acting on the receiving space 22 via the suction area 58.
  • the blower device 46 is arranged horizontally in the blower head 14.
  • the axis of rotation 52 lies transversely and in particular perpendicular to the height axis 28.
  • the axis of rotation 52 lies at least approximately parallel to the envelope plane 42 of the erection device 40. (It lies parallel or at a small acute angle which is at most 20 °.)
  • the axis of rotation 52 of the fan device 46 lies parallel to the wheel axis 36. This results in a space-saving, compact structure. In principle, it is also possible for the axis of rotation 52 to be oriented transversely and in particular perpendicular to the wheel axis 36.
  • the motor area 56 of the blower head 14 is a dry area.
  • electrical connection elements of the suction device 10 are located in it.
  • the electrical connection elements 66 comprise in particular electrical connection elements for the electrical energy supply (and control) of the blower motor 48.
  • switching elements for the suction device 10 can be arranged in the motor area 56.
  • a socket 68 is arranged on the motor area 56, by means of which an additional device is connected electrical energy can be supplied, wherein the electrical energy supply can be coupled in particular to a suction device.
  • the sealing device 70 fluidically separates the first area and the second area of the fan device 46.
  • a holder 72 for the fan device 46 is arranged in the housing 44.
  • This holder 72 is designed as a wall base plate which is arranged inside the housing 44.
  • This wall 74 is in particular connected in one piece to the housing 44.
  • the wall 74 of the holder 72 is at least approximately perpendicular to a plane 76 ( Figure 6 ), which is perpendicular to the height axis 28 or is at least approximately parallel to the envelope plane 42 of the erection device 40.
  • the wall 74 of the holder 72 divides the blower head 14 into a first half-space on the other side of the holder 72, in which the motor area 56 lies, and into a second half-space on this side of the holder 72, in which the suction area 58 lies.
  • the suction area 58 is formed in particular via a suction chamber 78, which is in fluid communication with the receiving space 22, for example via a pipe 80.
  • the pipe 80 leads to a filter device 82 ( Figures 3 , 4th ); a suction flow, which is generated by the blower device 46, acts on the receiving space 22 via the filter device 82; the filter device 82 filters out in particular particles from the suction flow.
  • the filter device 82 has a clean side 84 and a dirty side 86.
  • the clean side 84 faces the pipe 80.
  • the dirt side 86 faces the receiving space 22.
  • the suction area 58 is a clean area; it is connected upstream of the filter device 82 in relation to the suction flow.
  • the holder 72 has a recess 88 on the wall 74 (indicated in FIG Figures 4 and 8th ).
  • the recess 88 is a continuous opening between the suction area 58 and the motor area 56.
  • the sealing device 70 (and the fan device 46) is seated in this recess 88; the recess 88 is closed in a fluid-tight manner towards the holder 72 by the sealing device 70 in order to obtain a liquid-tight separation between the suction area 58 and the motor area 56.
  • the recess 88 has a height axis 90 which is parallel to the height axis 28.
  • the recess 88 is designed mirror-symmetrically to its height axis 90.
  • the recess 88 has a transverse side 92 which lies transversely to the vertical axis 90 and which faces the upper side 26.
  • the recess 88 is open on this transverse side 92. This enables the sealing device 70 (with the blower device 46) in an insertion direction 94 ( Figure 4 ), the direction of insertion being from the top 26 to the bottom 24, to be inserted into the recess 88 from above ( Figure 8 ).
  • the recess 88 tapers in relation to the insertion direction 94.
  • a width b transverse to the height axis 90 decreases away from the transverse side 92 along the vertical axis 90.
  • the recess 88 has a U-shaped or V-shaped shape with regard to its delimiting contour.
  • the delimitation wall 96 is part of the wall 74 (of the holder 72) and it delimits the recess 88.
  • the particular U-shape or V-shape of the recess 88 is predetermined by the delimitation wall 96.
  • the boundary wall 96 has a depth direction which is at least approximately parallel to the axis of rotation 52 of the fan motor 48.
  • the sealing device 70 ( Figures 7 to 10 ) comprises a sealing body 98.
  • the sealing body 98 has a recess 100 which is formed as a through opening. This recess 100 has in particular a circular shape.
  • the sealing body 98 has a delimiting wall 102 towards the recess 100 which surrounds the recess 100 in a closed manner.
  • the boundary wall 102 forms a first sealing region 104 which rests on a housing 106 of the fan device 46.
  • the boundary wall 102 of the sealing body 98 is formed on the first sealing area 104 in such a way that a first encompassing area 108 is present.
  • the boundary wall 102 of the blower device 46 has a counter element 110 for the first encompassing area 108.
  • This counter-element 110 is encompassed at least on one side by the first encompassing area 108, that is to say the counter-element 110 dips into a recess formed on the first encompassing area 108.
  • the first encompassing area 108 has a flank 112 ( Figures 5 , 9 ), which engages around the counter element 110 on one side.
  • the counter element 110 is designed in the manner of a circumferential ring.
  • the first encompassing area 108 is formed circumferentially with the boundary wall 102; the flank 112 or, if a plurality of flanks are provided, correspondingly the plurality of flanks, are formed circumferentially.
  • the flank 112 is assigned to the motor area 56.
  • the engine area 56 is an overpressure area.
  • the flank 112 is pressed against the associated counter-element 110 during operation of the suction cup 10.
  • spaced (sealing) ribs 114 are arranged transversely to the vertical axis 90 and in particular parallel to the axis of rotation 52.
  • a rib 114 is formed circumferentially on the first sealing region 104.
  • a rib 114 in each case has a rib tip 116, which is provided to rest against the counter element 110.
  • the first encompassing area 108 encompasses the counter element and the ribs 114 lie on a surface 118 which is arranged transversely with respect to the encompassing (cf. Figure 6 ) of the counter element 110.
  • the ribs 114 each form their own seal. As a result of the plurality of ribs spaced apart in parallel, a plurality of seals are, as it were, connected in series. If a leak should occur on one rib 114, the other ribs still provide a seal.
  • the protection against failure for the sealing device 70 is increased.
  • the sealing body 98 has an outer contour 120 which is adapted to the recess 88.
  • a second sealing area 124 is formed, which is used for sealing between the sealing body 98 and the holder 72 (with the wall 74) on the recess 88 and thus on the boundary wall 96 of the recess 88.
  • a second encompassing area 126 is formed on the second sealing area 124 ( Figures 5 , 7th ).
  • the counter element for the second encompassing area 126 is formed on the delimitation wall 96. It is denoted by 128 in the figures (compare Figures 5 , 6th ).
  • the second encompassing region 126 is formed by flanks 130a, 130b spaced apart along the axis of rotation 52.
  • the counter element 128 is immersed in the space between the flanks 130a, 130b (which are integrally connected to the second sealing area 124); the flanks 130a, 130b overlap the counter element 128 on the boundary wall 96.
  • a ring element 132 is arranged on the sealing body 100, which ring element 132 extends from the sealing body in a direction, in particular parallel to the axis of rotation 52 protrudes. This ring element 132 serves to reinforce and / or position the sealing device 70.
  • a wall element 134 is also arranged on the sealing body 98 ( Figures 6 to 10 ).
  • the wall element protrudes in a direction transverse to the vertical axis 90; it protrudes beyond the sealing body 98.
  • the wall element 134 is in particular connected in one piece to the sealing body 98.
  • the wall element 134 ( Figure 6 ) forms a boundary wall for a blow-out channel 136 (see also Figure 5 ) for process air.
  • This blow-out channel 136 is fluidically connected to the suction area 58 and opens into the outside space at one or more outlets 138.
  • the blow-out duct 136 is arranged on the blower head 14.
  • Process air is released into the outside space via the blow-out duct 136.
  • the number of components can be kept low via the wall element 134 on the sealing device 70.
  • a fluid-effective connection of the blow-out duct 136 to the suction region 58 during the manufacture of the teat 10 can be achieved in a simple manner with the sealing device.
  • the sealing device 70 is designed in particular in one piece. It is preferably made of a plastic material and has a certain elasticity so that it sits in a press fit under pretension in the holder 72 and the fan device 46 sits in a press fit under pretension in the recess 88, the second sealing area 124 and the first sealing area 104 for a fluid seal and in particular Provide a liquid seal so that no liquid can get from the suction area 58 into the motor area 56.
  • the blower device 46 is held on the holder 72.
  • additional support via one or more support elements 140 ( Figure 6 ) at a distance from the holder in the housing 44 of the blower head 14.
  • Air cooling is provided for the fan motor 48.
  • a cooling air duct 142 is formed on the blower head 14 and in particular on the motor area 56. Cooling air flows past the fan motor 48 to the motor area 56 via the cooling air duct 152. This can be emitted to the environment via one or more outlets 144.
  • the vacuum cleaner 10 works as follows: For proper suction operation, the suction device 10 is set up on a base 30 via the setting-up device 40. The blower device 46 generates a suction flow by which the suction effect is brought about.
  • the sealing device 70 ensures that this liquid cannot get into the motor area 56.
  • the motor area 56 is an “electrical” area in which electrical connection elements, electrical components, etc. of the vacuum cleaner 10 are located.
  • the sealing device 70 has a high sealing function. With the first sealing area 104 and with the second sealing area 124, it ensures a seal with respect to the blower device 46 and to the holder 72.
  • the fan device 46 is arranged horizontally with the axis of rotation 52 at least approximately parallel to the envelope plane 42. This results in increased sealing requirements which are met by the sealing device 70.
  • the ribs 114 provide increased protection against failure.
  • the suction device 10 can be constructed compactly and the number of components can be minimized. Furthermore, the assembly can be carried out more easily.
  • the fan device 46 can be held in the fan head 14 via the support element or elements 140 and the sealing device 70 on the holder 72 without further fastening elements such as screws or the like.
  • the blower device 46 can be held in the blower head 14 with pretensioning both with respect to the first sealing region 104 and the second sealing region 124 in order to achieve a high sealing effect.
  • blower device 46 can also be mounted in a floating manner in the blower head 14 via the sealing device 70 and the support element (s) 114.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP16795340.5A 2016-11-15 2016-11-15 Sauger Active EP3541258B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/077676 WO2018091068A1 (de) 2016-11-15 2016-11-15 Sauger

Publications (2)

Publication Number Publication Date
EP3541258A1 EP3541258A1 (de) 2019-09-25
EP3541258B1 true EP3541258B1 (de) 2020-12-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16795340.5A Active EP3541258B1 (de) 2016-11-15 2016-11-15 Sauger

Country Status (3)

Country Link
EP (1) EP3541258B1 (zh)
CN (1) CN109922701B (zh)
WO (1) WO2018091068A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111031871B (zh) * 2017-08-25 2022-04-19 株式会社牧田 吸尘器
DE102019105086A1 (de) * 2019-02-28 2020-09-03 Alfred Kärcher SE & Co. KG Sauggerät mit Kanalstück
DE102019117920A1 (de) * 2019-07-03 2021-01-07 Alfred Kärcher SE & Co. KG Saugvorrichtung und Verfahren zur Abreinigung eines Filters

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CN109922701A (zh) 2019-06-21
WO2018091068A1 (de) 2018-05-24
EP3541258A1 (de) 2019-09-25

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