WO2010026236A1 - Aspirateur - Google Patents

Aspirateur Download PDF

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Publication number
WO2010026236A1
WO2010026236A1 PCT/EP2009/061504 EP2009061504W WO2010026236A1 WO 2010026236 A1 WO2010026236 A1 WO 2010026236A1 EP 2009061504 W EP2009061504 W EP 2009061504W WO 2010026236 A1 WO2010026236 A1 WO 2010026236A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
vacuum cleaner
suction inlet
cleaner according
inlet part
Prior art date
Application number
PCT/EP2009/061504
Other languages
German (de)
English (en)
Inventor
Steffen Layer
Bernd Kiesling
Maic Hensel
Ullrich Rauleder
Original Assignee
Alfred Kärcher Gmbh & 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 Kärcher Gmbh & Co. Kg filed Critical Alfred Kärcher Gmbh & Co. Kg
Priority to CN200980135134.1A priority Critical patent/CN102149310B/zh
Priority to EP09782650A priority patent/EP2320780A1/fr
Publication of WO2010026236A1 publication Critical patent/WO2010026236A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—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
    • 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
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
    • 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

Definitions

  • the invention relates to a vacuum cleaner with a dirt collecting container and an attachable to the dirt collecting suction head, which has at least one suction unit, which is in fluid communication with the dirt collecting via a suction inlet, wherein the at least one suction unit is held on the upper side of a holding part of the suction head, at the Bottom a suction inlet part is arranged, which has the suction inlet.
  • the dirt collector is often designed in the manner of a bucket on which the suction head can be placed.
  • at least one suction unit is arranged, by means of which the dirt collecting container can be subjected to negative pressure.
  • the dirt collecting container has a suction connection, to which a suction hose can be connected, which carries at its free end a suction nozzle for sucking off a surface, for example a bottom surface.
  • the at least one suction unit generates a suction air flow, wherein suction air is sucked in via the suction inlet and is discharged to the environment via at least one suction outlet of the suction head.
  • Such vacuum cleaners are used both in the household and in the commercial sector. Especially when used in the commercial sector, the vacuum cleaners are subject to heavy mechanical stress. It is therefore desirable to design the vacuum cleaner mechanically particularly strong. Object of the present invention is therefore to develop a vacuum cleaner of the type mentioned in such a way that it has a high mechanical stability.
  • the Saugeinlassteil is configured approximately triangular in the lower view.
  • the outer contour of the Saugeinlassmaschines shows in the bottom view of a substantially triangular shape. This gives not only the suction inlet part but the entire suction head a high mechanical stability. This is especially true when the dirt collector and a housing of the suction head are designed substantially cylindrical.
  • the housing of the suction head defines then as well as the wall of the dirt collecting a circular edge surrounding the bottom view approximately triangular suction inlet part.
  • the side portions of the suction inlet part are offset inwardly from the circular edge and form reinforcing ribs.
  • the suction head of the vacuum cleaner according to the invention thereby obtains a high mechanical stability.
  • the suction inlet part has rounded corner areas. Corner regions of this kind have proven to be advantageous, in particular when a circular-cylindrical dirt collecting container is used, into which the suction inlet part dips in an advantageous embodiment.
  • the suction inlet part has two rectilinear side regions and an arcuately curved side region.
  • the rectilinear side areas allow in a structurally simple way, a mechanical reinforcement of Saugeinlassmaschines.
  • the arcuately curved side area allows a Convex outwardly curved configuration of Saugeinlassmaschines in this side area.
  • it can also be a concave inwardly curved configuration are used. The latter is particularly advantageous when the Saugeinlassteil dips into the dirt collector and this has from a side wall inside projecting air guide parts, such as a inside projecting from a side wall pipe socket, which connects in the flow direction to a suction port.
  • Vacuum cleaner is the Saugeinlassteil heart-shaped in the bottom view. It has been found that a very stable construction can be achieved by a heart shape, and at the same time the contour of the suction inlet part can be adapted to the interior of the dirt collection container.
  • the suction inlet part tapers in the direction of the suction inlet.
  • the suction inlet part has in such a configuration in its voltage applied to the holding part of the suction head area a larger cross-sectional area than in the region of the suction inlet.
  • the suction inlet part thus forms a suction inlet channel, which widens in the flow direction of a suction flow starting from the suction inlet.
  • the suction inlet part comprising a collar-shaped end section projecting from the holding part on the underside, which has an approximately triangular, in particular heart-shaped, outer contour and adjoins a section which extends in the direction of the suction inlet. jungt.
  • the collar-shaped end portion is preferably perpendicular from the underside of the holding part.
  • the end portion can carry a sealing ring, which bears sealingly against the underside of the holding part.
  • a tapering section adjoins the collar-shaped end section. In the region of the tapering section, the cross-sectional area of the suction inlet part decreases as the suction inlet arranged on the underside on the suction inlet part approaches.
  • the suction inlet part is funnel-shaped.
  • the dirt collecting container can be acted upon by the at least one suction unit with negative pressure.
  • a filter cage is held on the side of the suction inlet facing away from the suction unit, on which a filter element can be releasably fixed.
  • the suction air flows through the filter element and enters the suction inlet part on the underside, which forms a suction inlet channel which connects the suction inlet to the at least one suction unit.
  • the filter element is releasably fixable on the filter cage.
  • a cartridge filter can be used, which surrounds the filter cage in the circumferential direction and has a star-shaped folded filter material.
  • the filter cage surrounds in a preferred embodiment of the invention, a float for closing the suction inlet in response to
  • the float forms a closing part which, depending on the filling level of the dirt collecting container, can be placed sealingly against the suction inlet. If a predetermined filling level of the dirt collecting container is reached, the float closes the suction inlet and thus interrupts the flow connection between the
  • Dirt collecting container and the at least one suction unit Dirt collecting container and the at least one suction unit.
  • the use of a float is particularly advantageous if the vacuum cleaner is designed as a wet-dry vacuum cleaner, with the help of which not only dirt and dust particles can be sucked in but also a liquid.
  • the filter cage is surrounded in an advantageous embodiment over a portion of its circumference of a baffle.
  • the baffle ensures that sucked air and liquid droplets sucked into the dirt collecting container can not come directly from the suction connection to the filter element but initially hit the baffle wall and are deflected there. This increases the likelihood that entrained liquid droplets and dirt and dust particles will segregate within the debris collection bin.
  • the suction inlet part preferably has a concave indentation, and at the level of the indentation, the suction connection is arranged on the dirt collecting container.
  • the suction port forms on the inside of the wall of the dirt collecting a pipe socket, which protrudes from the inside and can dip in the region of the concave indentation of Saugeinlassmaschines.
  • the concave indentation thus decreases the on the inside protruding from the suction connection pipe socket.
  • An end portion of the pipe socket may face the bottom of the dirt collecting container and thereby align the incoming suction air in the direction of the bottom of the collecting container. Since below the concave indentation, the baffle is arranged, which surrounds the filter cage and the filter element held on it in the circumferential direction partially, it is ensured that the incoming suction air can not impinge directly on the filter element.
  • the suction head preferably has three suction units which are in flow communication with the suction inlet via the suction inlet part.
  • the use of three suction units gives the vacuum cleaner a particularly high suction capacity.
  • the suction inlet part in this case brings together the suction flows generated by the three suction units, so that a strong suction effect is achieved in the region of the suction inlet. It can thus be sucked in a short time, a large amount of suction air in the dirt collecting and sucked from this via the suction inlet and the Saugeinlassteil.
  • the holding part of the suction head is designed in an advantageous embodiment of the invention as a holding plate which carries the three suction units.
  • the holding plate is designed circular.
  • the suction units can sit on the top of the plate.
  • the holding plate may have three passage openings, so that the suction units defined on the top side of the holding plate can suck air through the holding plate.
  • the holding plate can have recesses into which the suction units can immerse the front side.
  • the axes of rotation of the suction units are preferably aligned parallel to each other. This allows a particularly compact design of the suction unit.
  • the suction head has at least one suction unit with a suction turbine, which is driven by an electric motor, and the holding part is formed as a holding plate, from the top of a first annular wall protrudes in the manner of a collar surrounding the at least one suction turbine , wherein the contour of the annular wall of the contour of the Saugeinlassteils corresponds in its resting on the underside of the retaining plate end portion.
  • a particularly high mechanical stability is achieved by use of the collar-shaped protruding from the top of the retaining plate first annular wall and the underside preferably also like a collar protruding suction inlet part.
  • Both the contour of the first annular wall and the contour of the Saugeinlassmaschines show an approximately triangular shape.
  • both the contour of the first annular wall and the contour of the underside resting against the retaining plate end portion of the Saugeinlassteils is heart-shaped.
  • the suction head conveniently has an intermediate wall, from the upper side of which a second annular wall protrudes like a collar whose contour is adapted to the first annular wall.
  • a second annular wall protrudes like a collar whose contour is adapted to the first annular wall.
  • the suction head an additional mechanical reinforcement.
  • the two annular walls and the suction inlet part are designed heart-shaped.
  • Figure 1 a side view of a vacuum cleaner according to the invention with a dirt collecting container and a suction head;
  • Figure 2 is a side view of the suction head of Figure 1;
  • Figure 3 is a bottom view of the suction head of Figure 1;
  • Figure 4 a perspective view of the suction head of Figure 1 obliquely from below and
  • Figure 5 a schematic representation of the suction head in the manner of an exploded view.
  • a vacuum cleaner 10 according to the invention is shown schematically with an approximately circular cylindrical dirt collector 11, which is placed on a chassis 12, with the help of which it can be moved.
  • the chassis 12 has two rear wheels 13, 14 and two steerable front wheels 15, 16 and a push bar 17th
  • the suction head 20 On the dirt collecting container 11, a suction head 20 is placed, which dips into the dirt collecting container 11 with a lower end section explained in more detail below.
  • the suction head 20 comprises a holding part, which is designed as a circular holding plate 21. is formed and the total of three suction units 24, 25, 26 carries.
  • the suction inlet part 30 On the underside 28 of the holding plate 21, the dirt collecting container 12 facing a funnel-shaped suction inlet part 30 is fixed.
  • the suction inlet part 30 is substantially triangular in the bottom view and has rounded corner regions 31, 32 and two rectilinear side regions 35, 36 and a side region 37 with a concave indentation 38.
  • the concave indentation 38 gives the suction inlet part 30 a bottom view a substantially heart-shaped shape. This becomes clear in particular from FIG.
  • a suction connection 40 is arranged on the dirt collecting container 11.
  • suction port 40 a known per se and therefore not shown in the drawing suction hose can be connected, which carries at its free end a suction nozzle for sucking a surface.
  • the suction inlet part 30 has a suction inlet 44, via which the dirt collecting container can be acted upon by the suction units 24, 25 and 26 with negative pressure.
  • a grid 50 is arranged at the suction inlet 44.
  • end portion of the Saugeinlassteil 30 In its abutting on the underside 28 of the holding plate 21 end portion of the Saugeinlassteil 30 forms a collar-shaped, projecting at right angles from the holding plate 21 end portion 46 which defines the heart-shaped in the bottom view outer contour of the Saugeinlassteils 30.
  • a tapering portion 48 connects, which connects the end portion 46 with the end wall 42.
  • the tapering section 48 forms a transition between the heart-shaped cross-section surface of the end portion 46 and the circular cross-sectional area of the end wall 42.
  • a filter cage 52 On the side facing away from the holding plate 21 outside of the end wall 42, a filter cage 52 is fixed, which surrounds a float 54 and in turn is surrounded by a filter element 56.
  • the float can be placed sealingly against the outside of the suction inlet 44 and can thereby interrupt the flow connection between the interior of the dirt collecting container 11 and the suction units 24, 25, 26. The flow interruption takes place as a function of the level of the dirt collecting container 11.
  • Such floats are known in the art and therefore require no further explanation.
  • the holding plate 21 has, for each suction unit 24, 25, 26, a cylindrical recess 60, 61 or 62 into which an end-side end area of a suction unit 24, 25 or 26 can be inserted.
  • the depressions 60, 61, 62 each have a central suction opening 65, 66, 67, via which the suction units 24, 25, 26 are in flow connection with the suction inlet part 30.
  • the first annular wall 69 comprises a first annular wall portion 70, which surrounds the recesses 60 and 61 in the circumferential direction largely, and a second annular wall portion 71, the recess 62 on its the first annular wall portion 70th surrounds the opposite side.
  • first ends 73 and 74 of the two annular wall portions 70 and 71 are integrally collar-like from the top of the support plate 21 projecting side walls 76, 77 of a first Saugluftauslasskanals 78, and to the second ends 80, 81 of the two annular wall portions 70 and 71 close to the top of the support plate 21 collar-like projecting side walls 83, 84 of a second Saugluftauslasskanals 85 at.
  • a deflecting element in the form of a transverse wall section 87 and 88 is respectively arranged.
  • a plurality of mutually spaced retaining pin 90 Between the retaining pin 90 and the annular wall sections 70, 71 as well as between the retaining pin 90 and the transverse wall sections 87, 88 a sound insulation used in the form of Dämmschaumes 91, 92.
  • the insulating foam 91, 92 clothes and the annular wall sections 70, 71 and the transverse wall sections 87, 88 inside out.
  • an intermediate wall 95 of the suction head 20 is placed with through holes 96, 97, 98, in each of which a suction unit 24, 25 and 26 can be used.
  • a second annular wall 100 from whose contour is adapted to the heart-shaped contour of the top plate of the holding plate 21 protruding first annular wall 69.
  • the intermediate wall 95 defines a cover for the Saugluftauslasskanäle 78 and 85, wherein they above the transverse wall portions 87 and 88 each form an air guide part in the form of a first arch 101 and a second arch 102, the section 87, 88 covers the respective transverse wall.
  • a hood 105 of the suction head 20 is placed, which has a parallel to the intermediate wall 95 extending ceiling wall 106, from which a shell 107 facing the dirt collecting container 11 projects downwards.
  • the jacket 107 has a first Saugluftauslass 109 which is covered by a grid 110
  • the jacket 107 has a second Saugluftauslass 111, which is covered by a grid 112.
  • a cooling air outlet 114 which is covered by a grid 115.
  • a lid 118 of the suction head 20 is placed on the hood 105.
  • the cover 118 defines two cooling air inlets on opposite outer sides of the suction head 20, wherein only one cooling air inlet 119 can be seen in the drawing.
  • the interior of the suction head 20 is subdivided by the intermediate wall 95 into a suction air space arranged between the intermediate wall 95 and the holding plate 21 and a cooling air space arranged between the intermediate wall 95 and the cover 118.
  • the latter is from the top wall 106 of the hood 105 in a arranged between the top wall 106 and the cover 118 cooling air inlet area and one between the ceiling wall
  • the suction units 24, 25 and 26 each comprise a forced-air-cooled electric motor 121, 122, 123 which drives an axial-radial fan 125, 126 and 127, respectively.
  • the respective axial-radial fan 125, 126 and 127 dives into the associated recess 60, 61 and 62 of the holding plate 21 and extends up to the level of the intermediate wall 95.
  • the electric motors 121, 122, 123 are arranged, wherein these on their respective axial-radial fan 125, 126, 127 facing away from the back each carry a fan, which is not shown in the drawing to achieve a better overview.
  • cooling air can be sucked in from the cooling air inlet area arranged between the top wall 106 and the cover 118.
  • the cooling air then flows axially along the respective electric motor 121, 122, 123 along and is discharged again in the cooling air outlet region between the top wall 106 and the intermediate wall 95.
  • the cooling air can be sucked in via the cooling air inlets 119 and the cooling air is emitted via the cooling air outlet 114.
  • a strong suction air flow is achieved by means of the three suction units 24, 25, 26.
  • About the Saugeinlassteil 30 are the suction units 24, 25, 26 in fluid communication with the dirt collecting, which is thus acted upon by the suction units 24, 25, 26 with negative pressure.
  • This can be sucked in via the suction port 40 with dirt and dust particles and liquid-laden suction air.
  • the filter terelement 56 surrounded over a portion of its circumference of a bottom side of the end wall 42 of the Saugeinlassteils 30 projecting baffle 130. This is arranged in the circumferential direction in the region of the concave indentation 38.
  • the suction air flows in the radial direction through the filter element 56 and passes through the suction inlet 44 into the interior of the Saugeinlassteils 30.
  • the sucked suction air is sucked in by the axial-radial fans 125, 126, 127 in the axial direction and discharged in the radial direction above the holding plate 21 in the region surrounding the annular wall 69. It then flows via the Stromauslasskanäle 78 and 85 to the Saugluftauslässen 109 and 111 and can be discharged through this to the environment.
  • the suction air impinges on the transverse wall sections 87, 88 and experiences a deflection in the vertical direction, so that it strikes the arched walls 101, 102 of the intermediate wall 95 arranged above the transverse wall sections 87, 88.
  • the suction air undergoes an arcuate deflection in the direction of the respectively adjacent suction air outlet 109 or 111.
  • the retaining plate 21 is circular as well as the intermediate wall 95 and the top wall 106 of the hood 105.
  • the suction inlet part 30 has a substantially triangular, in particular heart-shaped, shape in the bottom view.
  • rib-shaped reinforcements in the form of the side regions 35, 36 and 37 of the suction inlet part 30 are provided on the underside 28 of the holding plate 21, which give the suction head 20 a considerable mechanical stability.
  • the heart-shaped peripheral contour of the Saugeinlassteils 30 allows a combination of the three suction units 24, 25, 26 outgoing suction flows to the suction inlet 44. Overall, the vacuum cleaner 10 thus has a high suction performance and high mechanical stability and he stands out through a low noise level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un aspirateur (10) comportant un réservoir à poussière (11) sur lequel est placée une tête d'aspiration (20) pourvue d'au moins un organe d'aspiration (24,25,26) qui est en communication fluide avec le réservoir à poussière par l'intermédiaire d'une entrée d'aspiration (44), le ou les organes d'aspiration étant maintenus sur la face supérieure d'une plaque de maintien (21) de la tête d'aspiration, sur la face inférieure de laquelle est disposée une partie entrée d'aspiration (30) comportant l'entrée d'aspiration. L'invention vise à perfectionner l'aspirateur de manière à lui conférer une grande stabilité mécanique. A cet effet, la partie entrée d'aspiration est, vue d'en bas, approximativement triangulaire.
PCT/EP2009/061504 2008-09-08 2009-09-04 Aspirateur WO2010026236A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200980135134.1A CN102149310B (zh) 2008-09-08 2009-09-04 吸尘器
EP09782650A EP2320780A1 (fr) 2008-09-08 2009-09-04 Aspirateur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810046942 DE102008046942A1 (de) 2008-09-08 2008-09-08 Staubsauger
DE102008046942.4 2008-09-08

Publications (1)

Publication Number Publication Date
WO2010026236A1 true WO2010026236A1 (fr) 2010-03-11

Family

ID=41277493

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/061504 WO2010026236A1 (fr) 2008-09-08 2009-09-04 Aspirateur

Country Status (4)

Country Link
EP (1) EP2320780A1 (fr)
CN (1) CN102149310B (fr)
DE (1) DE102008046942A1 (fr)
WO (1) WO2010026236A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3047777B1 (fr) 2015-01-20 2019-11-20 Eurofilters Holding N.V. Robot aspirateur
PL3047774T3 (pl) * 2015-01-20 2018-09-28 Eurofilters Holding N.V. Odkurzacz podłogowy
ES2758094T3 (es) 2015-01-20 2020-05-04 Eurofilters Nv Aspiradora de funcionamiento autónomo, procedimiento de aspiración de polvo y uso de una aspiradora de funcionamiento autónomo
PL3047772T3 (pl) 2015-01-20 2017-07-31 Eurofilters Holding N.V. Robot-odkurzacz
EP3047771B1 (fr) 2015-01-20 2017-03-15 Eurofilters Holding N.V. Robot aspirateur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639001A (en) 1950-07-29 1953-05-19 Lewyt Corp Vacuum cleaner
US2719596A (en) 1950-07-08 1955-10-04 Kent Company Inc Vacuum cleaner
FR2766081A1 (fr) * 1997-07-18 1999-01-22 Sodera Equipement Unite d'aspiration

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2047933U (zh) * 1988-04-06 1989-11-22 王常智 喷流吸尘器
CN2188923Y (zh) * 1994-01-29 1995-02-08 陈杰 推车式电动吸尘器
US6113663A (en) * 1998-11-10 2000-09-05 Shop Vac Corporation Vacuum cleaner having a dual filter assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719596A (en) 1950-07-08 1955-10-04 Kent Company Inc Vacuum cleaner
US2639001A (en) 1950-07-29 1953-05-19 Lewyt Corp Vacuum cleaner
FR2766081A1 (fr) * 1997-07-18 1999-01-22 Sodera Equipement Unite d'aspiration

Also Published As

Publication number Publication date
DE102008046942A1 (de) 2010-03-11
CN102149310B (zh) 2013-12-25
EP2320780A1 (fr) 2011-05-18
CN102149310A (zh) 2011-08-10

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