EP2330958A1 - Aspirateur - Google Patents

Aspirateur

Info

Publication number
EP2330958A1
EP2330958A1 EP09782646A EP09782646A EP2330958A1 EP 2330958 A1 EP2330958 A1 EP 2330958A1 EP 09782646 A EP09782646 A EP 09782646A EP 09782646 A EP09782646 A EP 09782646A EP 2330958 A1 EP2330958 A1 EP 2330958A1
Authority
EP
European Patent Office
Prior art keywords
suction
vacuum cleaner
cleaner according
wall
saugluftauslasskanals
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.)
Granted
Application number
EP09782646A
Other languages
German (de)
English (en)
Other versions
EP2330958B1 (fr
Inventor
Steffen Layer
Bernd Kiesling
Maic Hensel
Ullrich Rauleder
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 EP2330958A1 publication Critical patent/EP2330958A1/fr
Application granted granted Critical
Publication of EP2330958B1 publication Critical patent/EP2330958B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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

Definitions

  • the invention relates to a vacuum cleaner with a dirt collecting container and a suction cup which can be placed on the dirt collecting container and which has at least one suction unit which is in flow communication with the dirt collecting container via a suction air inlet and with a suction air outlet via at least one suction air outlet channel for forming a suction air flow.
  • 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 a suction nozzle at the free end for sucking off a surface, for example a bottom surface.
  • the at least one suction unit generates within the suction head a suction air flow by sucking suction air through the suction air inlet and is discharged via the at least one Saugluftauslasskanal and the Saugluftauslass to the environment.
  • Object of the present invention is to develop a vacuum cleaner of the type mentioned in such a way that it works as quietly as possible.
  • a vacuum cleaner of the generic type according to the invention in that in the at least one Saugluftauslasskanal at least one deflecting element is arranged, wherein by means of the deflecting the Saugluftströmung is deflected in the vertical direction.
  • the noise development of the vacuum cleaner can be reduced. It has been shown that the vacuum cleaner operates quieter when the suction air between the at least one suction unit and the Saug- air outlet undergoes a vertical deflection. Thus, the suction air can not reach the suction outlet directly from the suction unit while maintaining its original flow direction.
  • the suction air is in the region between the at least one suction unit and the suction air outlet in the vertical direction, ie. h up or down, diverted. Only after such a deflection, the suction air reaches the Saugluftauslass. The noise of the vacuum cleaner can be reduced.
  • an air guide part is arranged at a distance from the deflecting element, wherein the suction air flow can be guided around the first deflecting element in an arcuate manner by means of the air guiding part.
  • the suction air flowing around the deflecting element can be guided around the deflecting element in an arcuate manner in a vertical plane.
  • the air guide part is designed as the deflector overlapping vault.
  • the impinging on the deflector suction air is deflected by this vertically in the direction of the vault, where the suction air undergoes an arcuate deflection, so that they can then flow to the suction outlet.
  • the deflection element in combination with the air guide part forms a flow baby in which the suction air flowing from the suction unit to the suction outlet is deflected at least once upwards with a vertical directional component and once with a vertical directional component downwards.
  • a sound-damping element is arranged in a preferred embodiment of the invention on the upstream side of the deflecting element.
  • the directed onto the deflecting suction air initially strikes the sound-absorbing element and is then deflected in the vertical direction.
  • the soundproofing element can be configured, for example, in the form of an insulating foam.
  • the deflecting element projects upwards from a bottom wall of the suction air outlet duct.
  • the bottom wall is oriented horizontally in the operating position of the vacuum cleaner, whereas the deflecting element has a vertical orientation.
  • the suction air is deflected vertically upwards, so it experiences a deflection by 90 °.
  • the suction air can then be directed downstream of the deflecting element back to the bottom wall of the Stromaus- lasskanales.
  • the vacuum cleaner is designed as a wet-dry vacuum, so that by means of the vacuum cleaner and a liquid can be sucked from a surface.
  • the deflecting element covers only part of the suction element
  • Width of Saugluftauslasskanals extends, because this allows the liquid droplets to flow past the deflection without the liquid droplets must undergo a vertical deflection.
  • the deflection element forms a partition which divides the Saugluftauslasskanal in a first channel portion and a second channel portion, wherein the first channel portion of the at least one suction unit extends to the partition and the second channel portion of the partition to the Suction outlet extends.
  • the dividing wall can be aligned, for example, transversely to the longitudinal walls of the Saugluftauslasskanales and, for example, at least eighty percent, preferably ninety percent of the width of the Saugluftauslasskanales. This ensures that the largest part of the suction air is deflected by the partition in the vertical direction and that, however, liquid droplets can flow past the side of the partition wall in order to reach the suction air outlet.
  • a passage is arranged between the deflecting element and a first side wall of the Saugluftauslasskanals.
  • the latter can be designed, for example, in the form of a gap, which extends as far as the bottom wall of the suction air outlet channel. Through the passage liquid droplets can flow through, without having to be deflected in the vertical direction.
  • a baffle is disposed which protrudes from the first side wall of the Saugluftauslasskanales.
  • the baffle is at least as wide is like the passage.
  • the baffle covers at least partially the passage in the direction of flow and, in combination with the deflection element, defines a flow labyrinth which ensures that virtually no suction air can flow directly through the passage from the suction unit. The suction air must first flow around the baffle wall.
  • the at least one suction unit has an axial-radial fan, which is surrounded by an annular wall, which is followed by the side walls of the Saugluftauslasskanals.
  • the side walls of the Saugluftauslasskanals are each integrally connected to one end of the annular wall.
  • the ring wall represents an effective soundproofing.
  • a sound-damping element is arranged on the axial-radial fan side facing the annular wall, for example, an insulating foam.
  • holding elements can be arranged at a distance from the ring wall, and the sound insulation element can be inserted between the holding elements and the ring wall.
  • the holding elements may be designed, for example, peg-shaped.
  • the suction head comprises a base plate, which carries the at least one suction unit and from the upper side of the annular wall and the side walls of the Saugluftauslasskanals protrude in the manner of a collar.
  • the base plate may form the bottom wall of the Saugluftauslasskanals.
  • the base plate, the annular wall and the side walls form a common plastic molding. It is advantageous if the deflecting element is integrally formed on the base plate.
  • the suction head to an intermediate wall, which is arranged at a distance from the base plate and the interior of the suction head in a arranged below the partition Saug Kunststoffraum and a partition wall disposed above the cooling air space, wherein in Saugluftraum the at least one Axial-radial fan and thede compassionraum a Fremd Kunststoffge - Cooled electric motor for driving the axial-radial fan is arranged.
  • the intermediate wall forms a mechanical stabilization of the suction head and preferably runs substantially parallel to the base plate. In the area between the intermediate wall and the base plate, the air discharged from the axial-radial fan suction air flows to the at least one Saugluftauslass. Above the intermediate wall of the electric motor is arranged, which drives the axial-radial fan and cooling air can be supplied to the cooling. The intermediate wall thus separates the suction air from the cooling air.
  • an air guide part can be arranged above the deflecting element, with the aid of which the suction air can be guided in an arc around the deflecting element. It is advantageous if the intermediate wall of the suction head forms the air guide part. It may be provided, for example, that the intermediate wall is shaped like a vault above the deflecting element.
  • the suction head has a hood on which a cover is arranged and which supports the cooling air space divided into a cooling air inlet area and a cooling air outlet area.
  • the hood can engage over the intermediate wall and extend with a jacket area to the base plate of the suction head.
  • the hood defines the at least one Saugluftauslass and at least one cooling air outlet and the lid defines at least one cooling air inlet. It is favorable if the cooling air inlet and outlet and the at least one suction air outlet are arranged offset from each other in the circumferential direction.
  • a particularly high suction power with low noise is achieved in an advantageous embodiment, characterized in that the suction head has at least two suction units, which are connected via a funnel-shaped suction air inlet channel with a common suction air inlet.
  • the suction head has at least two suction units, which are connected via a funnel-shaped suction air inlet channel with a common suction air inlet.
  • three suction units may be used, which are connected via the funnel-shaped suction air inlet channel to a single suction air inlet, which is in flow connection with the dirt collection container.
  • the suction air sucked in by the suction units can preferably be guided via two Saugluftauslasskanäle to Saugluftauslässe, where it undergoes a vertical deflection in the Saugluftauslasskanäle by providing each of a deflection element for noise reduction.
  • FIG. 1 shows 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 plan view of the suction head of Figure 1;
  • Figure 4 is a sectional view taken along line 4-4 in Figure 3;
  • Figure 5 a schematic representation of the suction head of Figure 1 in the manner of an exploded view
  • Figure 6 a perspective view of a base plate of the suction head.
  • a vacuum cleaner 10 according to the invention is shown schematically with a dirt collecting container 11 which is movable by means of a chassis 12 and on which a suction head 13 is placed.
  • the chassis 12 has a push bar 15 for moving the vacuum cleaner 10 along a floor surface.
  • the suction head 13 comprises a base plate 17 which carries three suction units 18, 19 and 20 and on the underside, the dirt collecting container 11 facing, a funnel-shaped Saugeinlassteil 22 is releasably held.
  • the suction inlet part 22 is substantially triangular in plan view and has rounded corner areas.
  • Two side portions 23, 24 are straight, whereas a third side region 25 has a concave indentation 26.
  • a suction port 28 is disposed on the dirt collecting 11, to which a known per se and therefore not shown in the drawing suction hose can be connected, which can carry at its free end a suction nozzle for sucking a surface.
  • the suction inlet part 22 has a suction inlet 30 on an end wall 29 facing the dirt collecting container 11. About the suction inlet 30 of the dirt collecting 11 can be acted upon by the suction units 18, 19 and 20 with negative pressure.
  • the base plate 17 has for each suction unit 18, 19 and 20, a cylindrical recess 32, 33 and 34, in which an end-side end portion of the respective suction unit 18, 19 and 20 can be used.
  • the depressions 32, 33 and 34 each comprise a central suction opening 35, 36, 37, via which the suction units 18, 19 and 20 are in fluid communication with the suction inlet part 22.
  • a ring-shaped annular wall 39 On the upper side of the base plate 17 is a ring-shaped annular wall 39 with a first annular wall portion 40 which completely surrounds the recesses 32 and 33 in the circumferential direction with the exception of a respective free space 42 and 43, and with a second annular wall portion 45 which the recess 34 their side facing away from the first annular wall portion 40 surrounds.
  • a first side wall 48 of a first Saugluftauslasskanals 49 is formed
  • the second side wall 50 is integrally formed on a first end 51 of the second annular wall portion 45.
  • the second end 54 of the second annular wall portion 45 is integrally connected to a first side wall 55 of a second Saugluftauslasskanals 56, the second side wall 57 is integrally formed on the second end 58 of the first annular wall portion 40.
  • the bottom wall of the first Saugluftauslasskanals 49 is formed as well as the bottom wall of the second Saugluftauslasskanals 56 of the base plate 17.
  • a first deflecting element is arranged in the form of a first partition 61, which is substantially transverse to the two
  • Side walls 48, 50 of the first Saugluftauslasskanals 49 extends and is integrally formed on the first end 51 of the second annular wall portion 45.
  • the width of the first partition wall 61 is smaller than the width of the first Saugluftauslasskanals 49, i. smaller than the distance between the first side wall 48 and the second side wall 50, such that between the free end of the first
  • a first gap-shaped passage 62 is arranged.
  • a second deflection element in the form of a second partition wall 64 which is integrally formed on the second end 58 of the first annular wall section 40, is arranged in the second suction air outlet channel 56 transversely to its side walls 55 and 57.
  • the width of the second partition wall 64 is less than the width of the second Saugluftauslasskanals 56, ie, it is less than the distance between the first side wall 55 and the second side wall 57 of the second Saugluftauslasskanals, so that between the free end of the second partition 64 and the first Side wall 55, a gap-shaped second passage 65 is formed.
  • a first baffle 67 is arranged, which covers the first passage 62 and is integrally connected to the first end 47 of the first annular wall portion 40.
  • a second baffle 68 which covers the second passage 65, is formed between the second passage 65 and the recess 34 at the second end 54 of the second annular wall section 45.
  • a plurality of spaced apart retaining pin 70 On the recesses 32, 33 and 34 side facing the base plate 17 spaced from the annular wall portions 40 and 45 and spaced from the partitions 61 and 64 a plurality of spaced apart retaining pin 70. Between the retaining pin 70 and the annular wall portions 40 and 45 is as well as between the retaining pin 70 and the partitions 61 and 64, a sound insulation used in the form of an insulating foam 72 and 73. The insulation foam 72, 73 thus clothes the annular wall sections 40 and 45 and the partitions 61 and 64 inside.
  • an intermediate wall 75 is mounted with through holes 76, 77 and 78, in each of which a suction unit 18, 19 and 20 can be used.
  • the intermediate wall 75 forms a first air guide part in the form of a first arch 81, which covers the first partition wall 61.
  • the intermediate wall 75 forms a second air guide part in the form of a second arch 82, which covers the second partition wall 64.
  • the first arch 81 forms, in the region of the first partition 61, a top wall of the first suction wall.
  • the second arch 82 forms in the region of the second partition 64, a top wall of the second Saugluftauslasskanals 56 from.
  • a hood 85 is placed, which has a parallel to the intermediate wall 75 extending ceiling wall 86 from which a jacket 87 facing the dirt collector 11 projects downwards.
  • the jacket 87 surrounds the intermediate wall 75 and also the base plate 17.
  • the jacket 87 has a first Saugluftauslass 89 which is covered by a grid 90
  • the jacket 87 has a second Saugluftauslass 91, which is covered by a grid 92.
  • a cooling air outlet 94 In the circumferential direction between the first Saugluftauslass 89 and the second Saugluftauslass 91 of the jacket 87 defines a cooling air outlet 94, which is covered by a grid 95.
  • the cover 98 defines a first cooling air inlet 99 and a second cooling air inlet 100 which, relative to the circumferential direction of the cover 98, are each arranged on the side of a suction air outlet 89 or 91 facing away from the cooling air outlet 94.
  • the interior of the suction head 13 is subdivided by the intermediate wall 75 into a suction air space arranged between the intermediate wall 75 and the base plate 17 and a cooling air space arranged between the intermediate wall 75 and the cover 98.
  • the latter is arranged by the top wall 86 of the hood 85 in a between the top wall 86 and the lid 98 angeord- Neten cooling air inlet area and a arranged between the ceiling wall 86 and the intermediate wall 75 cooling air outlet area divided.
  • the suction head 13 On its underside facing away from the cover 98, the suction head 13 carries at the suction inlet 30 a filter basket 102, which surrounds a float 103 and in turn is surrounded by a filter element 104.
  • the suction inlet 30 can be closed and opened in dependence on the level of the dirt collecting container 11, and by means of the filter element 104, the dirt-laden suction air sucked into the dirt collecting container 11 can be filtered.
  • floats and filter elements are known to those skilled in the art and therefore require no further explanation in the present case.
  • the suction units 18, 19 and 20 each include a forced-air-cooled electric motor 106, 107 and 108, respectively, which drives an axial-radial fan 110, 111 and 112, respectively.
  • the respective axial-radial fan 110, 111 or 112 dips into the associated recess 32, 33 or 34 of the base plate 17 and extends up to the level of the intermediate wall 75.
  • the electric motors 106, 107, 108 are arranged, wherein these each carry on their rear side facing away from the respective axial-radial fan 110, 111, 112 a fan wheel, which is not shown in the drawing to achieve a better overview.
  • cooling air By means of the fan wheel cooling air can be sucked from the arranged between the top wall 86 and the lid 98 cooling air inlet area.
  • the cooling air then flows axially along the corresponding electric motor 106, 107, 108 and is discharged again in the cooling air outlet region between the top wall 86 and the intermediate wall 75. turned suction
  • the cooling air may be transmitted via the cooling air inlets 99 and 100, and the cooling air is discharged via the cooling air outlet 94.
  • a strong suction air flow is achieved by means of the three suction units 18, 19 and 20.
  • the suction air is sucked by the axial-radial fans 110, 111 and 112 in the axial direction and discharged radially. It then flows via Saugluftauslasskanäle 49 and 56 to Saugluftauslässen 89 and 91 and can be discharged through this to the environment.
  • the suction air strikes the first partition wall 61 and the second partition 64 and experiences at this a deflection in the vertical direction, so that they are arranged on the above the first partition 61 first vault 81 and on the above second partition 64 disposed second vault 82 of the intermediate wall 75 meets.
  • the suction air undergoes an arcuate deflection in the direction of the respectively adjacent Saugluftauslass 89 and 91st
  • the vacuum cleaner 10 is therefore characterized by a relatively low noise from at the same time high suction power.
  • the vacuum cleaner 10 is designed as a wet-dry vacuum cleaner. Thus, liquid can also be sucked into the dirt collecting container 11. Individual liquid droplets can pass through the filter element 104 and the axial-radial fans 110, 111 and 112 onto the upper side of the base element. get to plate 17. In order to ensure that these liquid droplets can then escape from the suction head 13, the passages 62 and 65 are provided, through which the liquid droplets can flow, without the liquid droplets having to undergo a vertical deflection for this purpose.
  • baffle 67th or 68 in front of the passages 62 and 65 each have a baffle 67th or 68 arranged.
  • the baffles 67 and 68 form a labyrinthine flow system, within which the suction air a multiple deflection in the vertical direction and liquid droplets flowing therethrough undergo a deflection in the horizontal direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electric Suction Cleaners (AREA)

Abstract

L'invention concerne un aspirateur (10) comportant un réservoir à poussière (11) sur lequel est placée une tête d'aspiration (13) pourvue d'au moins un organe d'aspiration (18,19,20) qui est en communication fluide avec le réservoir à poussière par l'intermédiaire d'une entrée d'air d'aspiration (30) et avec une sortie d'air d'aspiration (89,91) par l'intermédiaire d'au moins un canal de sortie d'air d'aspiration (49, 56) pour former un écoulement d'air d'aspiration. L'invention vise à perfectionner l'aspirateur (10) pour que son fonctionnement soit le plus silencieux possible. A cet effet, au moins un élément déflecteur (61,64) est disposé dans le ou les canaux de sortie d'air d'aspiration (49, 56) pour dévier l'écoulement d'air d'aspiration à la verticale.
EP09782646.5A 2008-09-08 2009-09-04 Aspirateur Active EP2330958B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810046941 DE102008046941A1 (de) 2008-09-08 2008-09-08 Staubsauger
PCT/EP2009/061500 WO2010026234A1 (fr) 2008-09-08 2009-09-04 Aspirateur

Publications (2)

Publication Number Publication Date
EP2330958A1 true EP2330958A1 (fr) 2011-06-15
EP2330958B1 EP2330958B1 (fr) 2016-02-10

Family

ID=41319829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09782646.5A Active EP2330958B1 (fr) 2008-09-08 2009-09-04 Aspirateur

Country Status (5)

Country Link
EP (1) EP2330958B1 (fr)
CN (1) CN102131434B (fr)
DE (1) DE102008046941A1 (fr)
DK (1) DK2330958T3 (fr)
WO (1) WO2010026234A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3238592B1 (fr) 2016-04-27 2021-06-02 Diversey, Inc. Aspirateur
EP3500360B1 (fr) * 2016-08-18 2023-10-04 Vita-Mix Management Corporation Système d'écoulement d'air réduisant le bruit pour un système mélangeur
DE102021109222A1 (de) * 2021-04-13 2022-10-13 Alfred Kärcher SE & Co. KG Staubsauger

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE641371C (de) * 1933-06-27 1937-01-29 Aeg Elektrisch betriebener Topfstaubsauger
DE3225258C2 (de) 1982-07-06 1985-11-28 Guido Oberdorfer Wap-Maschinen, 7919 Bellenberg Schmutzsauger
US6219880B1 (en) 1998-09-17 2001-04-24 Pullman-Holt Corporation Vacuum cleaner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010026234A1 *

Also Published As

Publication number Publication date
DE102008046941A1 (de) 2010-03-11
DK2330958T3 (da) 2016-05-17
WO2010026234A1 (fr) 2010-03-11
EP2330958B1 (fr) 2016-02-10
CN102131434B (zh) 2014-06-11
CN102131434A (zh) 2011-07-20

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