EP1559359B1 - Aspirateur - Google Patents

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Publication number
EP1559359B1
EP1559359B1 EP05001761A EP05001761A EP1559359B1 EP 1559359 B1 EP1559359 B1 EP 1559359B1 EP 05001761 A EP05001761 A EP 05001761A EP 05001761 A EP05001761 A EP 05001761A EP 1559359 B1 EP1559359 B1 EP 1559359B1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
accordance
wall
suction
suction unit
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.)
Expired - Lifetime
Application number
EP05001761A
Other languages
German (de)
English (en)
Other versions
EP1559359A3 (fr
EP1559359A2 (fr
Inventor
Jürgen FRANK
Rainer Engelhardt
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
Priority to PL05001761T priority Critical patent/PL1559359T3/pl
Publication of EP1559359A2 publication Critical patent/EP1559359A2/fr
Publication of EP1559359A3 publication Critical patent/EP1559359A3/fr
Application granted granted Critical
Publication of EP1559359B1 publication Critical patent/EP1559359B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • 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 vacuum cleaner housing, which comprises a lower part and an attachable to this upper part, wherein the lower part forms a dirt collector and the upper part receives an electric suction unit with an electric motor and a suction turbine, wherein the suction unit in the circumferential direction of two semi-annular outlet channels surrounded is, which open into a common outlet opening for discharging the suction sucked by the suction unit, and wherein an operating element for switching on and off of the electric motor is arranged laterally on the upper part.
  • Such a vacuum cleaner is from the EP 0 099 466 B2 known. To achieve improved sound insulation is provided in this vacuum cleaner, that the suctioned air from the suction unit is alternately accelerated and slowed several times and is additionally deflected several times at sharp edges. However, it is desirable to further reduce the noise level associated with operation of the vacuum cleaner.
  • US 4,655,694 discloses a vacuum cleaner according to the preamble of claim 1.
  • Object of the present invention is therefore to develop a vacuum cleaner of the type mentioned in such a way that it allows the lowest possible suction operation.
  • control element and the outlet opening are diametrically opposed to each other and record between them the suction unit and the two outlet channels.
  • a vacuum cleaner can be provided, which is characterized despite a relatively small volume by a high suction capacity and low noise.
  • suction turbine and the electric motor prefferably be arranged axially one behind the other so as to define a central axis of the upper part.
  • the suction air starting from the suction turbine, flows through the electric motor and is then guided on the outside in the direction of the suction turbine facing the electric motor.
  • the suction air serves as a working air, with the aid of which dirt can be transferred into the dirt collecting container, and on the other hand, the suction air serves as cooling air for cooling the electric motor.
  • Both the working air and the cooling air are led together via the outlet channels to the single outlet opening of the vacuum cleaner.
  • the working air and the cooling air need not be separated from each other by partitions and consequently can be selected for the outlet channels a relatively large flow cross-section, which in turn keeps the noise level low, since the flow rate of the suction air can be kept low.
  • a flow baffle is arranged, wherein by means of the Strömungsleitwand caused by the suction suction air flow can be divided into two flow components, which are each an outlet channel can be fed.
  • the operating element such as an electromechanical switch or an electrical plug-in device, is not acted upon by the Saugluftströmung, as this can be transferred from the arranged between the control element and the suction flow guide in the direction of the outlet channels. It has been found that thereby the noise of the vacuum cleaner can be further reduced.
  • the flow guide wall is concavely curved relative to the central axis of the upper part.
  • the flow guide wall can delimit on the inside a receiving space of the upper part, in which the operating element is arranged.
  • the upper part has an inner housing surrounding the suction unit and a lid covering the inner housing.
  • the inner housing surrounds the suction unit both in the circumferential direction and on the upper side and underside with the exception of an inlet opening and an outlet opening for the Saugluftströmung. This achieves considerable noise reduction.
  • the inner housing can be inserted into the lower part, because this simplifies the installation and maintenance of the vacuum cleaner.
  • the inner housing takes not only on the suction unit, but in addition, the two outlet channels. It is advantageous if the inner housing has an inner wall surrounding the suction unit in the circumferential direction and an outer wall extending at a radial distance therefrom, between which the outlet channels run. The inner wall and the outer wall thus form a boundary of the outlet channels in the radial direction, which surround the suction unit in each case substantially semicircular.
  • the inner wall and the outer wall are integrally formed on a dipping into the lower part of the bottom wall of the inner housing.
  • Inner wall, outer wall and bottom wall are therefore integrally connected to each other and can be inexpensively manufactured as a plastic molding.
  • the inner housing has a suction unit and the outlet channels covering hood, which on the inner and outer walls can be placed.
  • the hood can form a top-side termination of the inner housing.
  • the inner housing is configured in two parts, wherein the hood forms a first inner housing part and the second inner housing part is formed by the bottom wall and the inner and outer walls formed thereon.
  • the two inner housing parts can be releasably connected to each other, in particular it can be provided that the two inner housing parts are screwed together.
  • a filter element preferably a fine filter element is arranged at the outlet opening of the upper part, with the aid of which the noise of the vacuum cleaner can be reduced and on the other hand, the suction air discharged from the suction unit can be filtered.
  • the outlet channels each have at least one guide wall in their end region adjacent to the filter element for parallelizing and aligning the suction flow in the direction of the filter element. It has been found that thereby the noise of the vacuum cleaner can be reduced.
  • a filter element can thus be used with a high filter fineness, so that even small dirt particles can be reliably separated from the suction air discharged by the suction unit. Due to the parallelization and the orientation of the suction currents air swirls are avoided in the end regions of the outlet channels, which represent a mechanical load on the filter element and would increase the noise.
  • a particularly effective noise reduction is achieved in an advantageous embodiment in that in each case at least one guide wall is arranged free-standing in the respective end region of the outlet channels.
  • the free-standing guide wall preferably extends at least over one-fifth of the total length of the respective outlet channel and ends at the level of the outlet opening.
  • the distance to the guide wall to the inner wall may correspond at least to the distance of the guide wall to the outer wall. It is favorable if the distance to the inner wall is selected to be about 10% to about 30% greater than the distance between the guide wall and the outer wall.
  • the guide walls are curved.
  • the guide walls are concavely curved in their end region adjoining the outlet opening.
  • the upper part has a receptacle for a cable winding on the upper side.
  • the cable winding can receive the connecting cable of the vacuum cleaner, wherein the top-side arrangement of the cable winding simplifies the removal of the cable for the user.
  • the receptacle comprises a circular annular wall which is aligned coaxially to the central axis of the upper part is.
  • an oval-shaped annular wall can be used in the view from above on the vacuum cleaner.
  • the ring wall can be given a larger circumference, so that a connecting cable with few windings and consequently can be wound particularly easily.
  • Vacuum cleaner is shown with a lower part 12 and an attachable to this upper part 14.
  • the lower part forms a dirt collecting 16, in the known about and therefore not shown in the drawing suction nozzle of the lower part 12 dirt can be sucked.
  • a suction hose is connected in a conventional manner, which carries at its free end a suction nozzle (not shown).
  • the lower part 12 is covered by the upper part 14, which has an inner housing 18 and a cover 20.
  • the inner housing 18 is formed in two parts and comprises a first inner housing part in the form of a hood 22 and a second inner housing part 24, which has a bottom wall 26 and an inner wall 28 and an outer wall 30, which are integrally formed on the upper side of the bottom wall 26 and on which the hood 22 is placed.
  • the hood 22 is screwed to the second inner housing part 24.
  • the bottom wall 26 can be inserted into the lower part 12.
  • the inner housing 18 receives centrally a suction unit 34 with a suction turbine 35 and a suction turbine 35 driving electric motor 36.
  • the suction turbine 35 and the electric motor 36 are axially arranged one behind the other and define a central axis 38 of the upper part 14.
  • the suction turbine 35 is connected to a in the Bottom wall 26 formed inlet opening 40 in fluid communication with the dirt collecting 16, so that by means of the suction unit 34 of the dirt collecting 16 can be sucked.
  • the electric motor 36 carries on its suction turbine 35 facing away from the top of a U-shaped holding plate 42, via which the suction unit 34 is fixed on the top side of the hood 22 and at the same time forms a deflection for the output of the suction unit suction, the first of the electric motor 36th flows through in the axial direction, then guided radially outward and meets the retaining plate 42, from which it is deflected in the direction of the suction turbine 35 facing direction, so that the suction air then flows along the outside of the electric motor 36.
  • the suction air flow is illustrated by the double arrows 44.
  • the inner housing 18 has in a lateral region of a cover 20 from the overflowed outlet opening 46, on which a fine filter 48 is arranged, and on the diametrically opposite side of the outlet opening 46 are on Upper part 14, an operating element for switching on and off it electric motor 36 is arranged in the form of an electromechanical switching element 50 and a socket, not shown in the drawing for connecting a power tool.
  • the outer wall 30 forms a concavely curved Strömungsleitwand 52, and adjacent thereto, the inner wall 28 has a passage opening 54.
  • the inner wall 28 surrounds the suction unit 34 completely in the circumferential direction, so that between the suction unit 34 and the inner wall 28, an inner annular space 56 is defined.
  • the Saugluftströmung 44 meets after passing through the passage opening 54 on the concave inwardly curved Strömungsleitwand 52, which causes a division of Saugluftströmung 44, wherein the two flow components each flow through an outlet channel 59 and 60, to then together through the Outlet opening 46 and the adjoining fine filter 48 pass through.
  • the outlet channels 59 and 60 each have a free-standing guide wall 62 and 63, respectively, which cause the suction air flow to be parallelized and aligned in the direction of the fine filter 48.
  • the distance of the guide walls 62 and 63 to the inner wall 28 is about 20% larger than the distance that the guide walls 62 and 63 occupy to the outer wall 30.
  • the outlet openings 46 immediately adjacent end portions of the guide walls 62 and 63 are, this is off FIG. 2 distinct, concavely curved.
  • the cover 20 On the top side, the cover 20 has a receptacle 69 for a cable winding 70.
  • the receptacle 69 is bounded by a substantially horizontally oriented support wall 72, to which a circular, coaxial with the central axis 38 aligned annular wall 73 is formed, which is covered by a radially outwardly facing projection 74.
  • the annular wall 73 may also have an oval shape in plan view.
  • the vacuum cleaner 10 according to the invention is characterized by a particularly low noise during operation of the suction unit 34.
  • This contributes to the relatively large flow cross section of the two outlet channels 59 and 60, the large flow cross section can be ensured by the diametrical arrangement of the switching element 50 and the outlet opening 46 with fine filter 48.
  • the circumferential direction of the suction unit 34 is practically the entire space of the upper part 14 for guidance the suction flow 44 is available, so that within the outlet channels 59 and 60, a relatively low flow velocity can be ensured, by which the noise is kept low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Catching Or Destruction (AREA)

Claims (20)

  1. Aspirateur doté d'un carter d'aspirateur qui comprend une partie inférieure et une partie supérieure pouvant être montée sur ladite partie inférieure, la partie inférieure formant un récipient de collecte de souillures et la partie supérieure recevant une unité d'aspiration électrique dotée d'un moteur électrique et d'une turbine d'aspiration, l'unité d'aspiration étant entourée dans la direction circonférentielle par deux canaux de sortie de forme demi-circulaire qui débouchent dans une ouverture de sortie commune pour évacuer l'air d'aspiration aspiré par l'unité d'aspiration, et un élément de commande destiné à mettre en marche et arrêter le moteur électrique étant disposé sur un côté de la partie supérieure, caractérisé en ce que l'élément de commande (50) et l'ouverture de sortie (46) sont agencés diamétralement à l'opposé l'un de l'autre et reçoivent entre eux l'unité d'aspiration (34) et les deux canaux de sortie (59, 60).
  2. Aspirateur selon la revendication 1, caractérisé en ce que la turbine d'aspiration (35) et le moteur électrique (36) sont disposés axialement l'un derrière l'autre en définissant un axe médian (38) de la partie supérieure (14).
  3. Aspirateur selon la revendication 1 ou 2, caractérisé en ce que l'air d'aspiration provenant de la turbine d'aspiration (35) s'écoule au travers du moteur électrique (36), puis est guidé du côté extérieur le long du moteur électrique (36) en direction de la turbine d'aspiration (35).
  4. Aspirateur selon l'une des revendications précédentes, caractérisé en ce qu'une paroi de guidage d'écoulement (52) est disposée entre l'unité d'aspiration (34) et l'élément de commande (50), et au moyen de la paroi de guidage d'écoulement (52) l'écoulement (44) de l'air d'aspiration généré par l'unité d'aspiration (34) peut être divisé en deux portions d'écoulement qui peuvent être amenées chacune à un canal de sortie (59, 60).
  5. Aspirateur selon la revendication 4, caractérisé en ce que la paroi de guidage d'écoulement (52) forme un capotage intérieur de l'élément de commande (50).
  6. Aspirateur selon la revendication 4 ou 5, caractérisé en ce que la paroi de guidage d'écoulement (52) présente une incurvation concave par rapport à l'axe médian (38) de la partie supérieure (14).
  7. Aspirateur selon l'une des revendications précédentes, caractérisé en ce que la partie supérieure (14) possède un carter intérieur (18) entourant l'unité d'aspiration (34), ainsi qu'un couvercle (20) recouvrant le carter intérieur.
  8. Aspirateur selon la revendication 7, caractérisé en ce que le carter intérieur (18) peut être enfiché dans la partie inférieure (12).
  9. Aspirateur selon la revendication 7 ou 8, caractérisé en ce que le carter intérieur (18) est conformé en deux parties, et possède une première partie de carter intérieur (22) ainsi qu'une seconde partie de carter intérieur (24).
  10. Aspirateur selon la revendication 7, 8 ou 9, caractérisé en ce que le carter intérieur (18) possède une paroi intérieure (28) entourant dans la direction circonférentielle l'unité d'aspiration (34), ainsi qu'une paroi extérieure (30) s'étendant radialement à distance de ladite paroi intérieure, entre lesquelles s'étendent les canaux de sortie (59, 60).
  11. Aspirateur selon la revendication 10, caractérisé en ce que la paroi intérieure (28) et la paroi extérieure (30) sont conformées au niveau d'une paroi de fond (26) du carter intérieur (18), laquelle s'enfonce dans la partie inférieure (12).
  12. Aspirateur selon la revendication 10 ou 11, caractérisé en ce que le carter intérieur (18) comporte un capot (22) qui recouvre l'unité d'aspiration (34) et les canaux de sortie (59, 60), et qui peut être monté sur les parois intérieure et extérieure (28, 30).
  13. Aspirateur selon l'une des revendications précédentes, caractérisé en ce qu'un élément de filtrage (48) est disposé au niveau de l'ouverture de sortie (46).
  14. Aspirateur selon la revendication 13, caractérisé en ce que les canaux de sortie (59, 60) comportent chacun, dans leur région d'extrémité voisine de l'élément de filtrage (48), au moins une paroi de guidage (62, 63) associée destinée à orienter l'écoulement (44) de l'air d'aspiration parallèlement et en direction de l'élément de filtrage (48).
  15. Aspirateur selon la revendication 14, caractérisé en ce que au moins une paroi de guidage (62, 63) associée est disposée dans la région d'extrémité respective de chacun des canaux de sortie (59,60).
  16. Aspirateur selon la revendication 14 ou 15, caractérisé en ce que les parois de guidage (62, 63) sont incurvées.
  17. Aspirateur selon l'une des revendications précédentes, caractérisé en ce que des arêtes d'extrémité (67) des canaux de sortie (59, 60) sont arrondies, au moins dans la région de l'ouverture de sortie (46).
  18. Aspirateur selon l'une des revendications précédentes, caractérisé en ce que la partie supérieure (14) possède du côté supérieur un logement (69) destiné à recevoir un enroulement de câble (70).
  19. Aspirateur selon la revendication 18, caractérisé en ce que le logement (69) possède une paroi annulaire (73) de forme circulaire qui est orientée coaxialement à l'axe médian (38) de la partie supérieure (14).
  20. Aspirateur selon la revendication 18, caractérisé en ce que le logement (69) possède une paroi annulaire de forme ovale.
EP05001761A 2004-01-30 2005-01-28 Aspirateur Expired - Lifetime EP1559359B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05001761T PL1559359T3 (pl) 2004-01-30 2005-01-28 Odkurzacz

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004005500 2004-01-30
DE102004005500A DE102004005500A1 (de) 2004-01-30 2004-01-30 Staubsauger

Publications (3)

Publication Number Publication Date
EP1559359A2 EP1559359A2 (fr) 2005-08-03
EP1559359A3 EP1559359A3 (fr) 2006-04-05
EP1559359B1 true EP1559359B1 (fr) 2010-03-10

Family

ID=34638841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05001761A Expired - Lifetime EP1559359B1 (fr) 2004-01-30 2005-01-28 Aspirateur

Country Status (5)

Country Link
EP (1) EP1559359B1 (fr)
AT (1) ATE460106T1 (fr)
DE (2) DE102004005500A1 (fr)
DK (1) DK1559359T3 (fr)
PL (1) PL1559359T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7721384B2 (en) 2005-08-25 2010-05-25 Shop-Vac Corporation Pneumatic cleaner
DE102010043581A1 (de) * 2010-11-08 2012-05-10 Hilti Aktiengesellschaft Staubsauger mit einer Kabelhalteeinrichtung
DE202011051991U1 (de) 2011-11-16 2011-11-28 G. Staehle Gmbh U. Co. Kg Reinigungsgerät, insbesondere Staubsauger
DK3238592T3 (da) 2016-04-27 2021-07-19 Diversey Inc Støvsuger
CN109843134B (zh) * 2016-10-12 2021-03-30 阿尔弗雷德·卡赫欧洲两合公司 清洁设备和用于制造清洁设备的方法
DE102018108559A1 (de) 2018-04-11 2019-10-17 Alfred Kärcher SE & Co. KG Reinigungsgerät
US10932634B2 (en) * 2018-05-30 2021-03-02 Omachron Intellectual Property Inc. Surface cleaning apparatus
US10827889B2 (en) 2018-05-30 2020-11-10 Omachron Intellectual Property Inc. Surface cleaning apparatus
CN109589042B (zh) * 2018-12-29 2021-01-12 江苏美的清洁电器股份有限公司 用于吸尘器的电机罩、吸尘器的电机模组及吸尘器
DE102024113322A1 (de) * 2024-05-13 2025-11-13 Alfred Kärcher SE & Co. KG Saugreinigungsgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3225258C2 (de) * 1982-07-06 1985-11-28 Guido Oberdorfer Wap-Maschinen, 7919 Bellenberg Schmutzsauger
US4435877A (en) * 1982-09-30 1984-03-13 Shop-Vac Corporation Noise reducing means for vacuum cleaner
US4655694A (en) * 1985-08-01 1987-04-07 Shop-Vac Corporation Housing assembly for motor/fan means of a wet/dry vacuum cleaner
DE4429116A1 (de) * 1994-03-25 1995-09-28 Hans Dietrich Kabelaufwickelvorrichtung und Staubsauger mit einer solchen Kabelaufwickelvorrichtung
KR970009718A (ko) * 1995-08-31 1997-03-27 배순훈 진공 청소기의 배기 유로를 길게한 흡음방

Also Published As

Publication number Publication date
ATE460106T1 (de) 2010-03-15
EP1559359A3 (fr) 2006-04-05
DK1559359T3 (da) 2010-05-17
PL1559359T3 (pl) 2010-08-31
DE102004005500A1 (de) 2005-08-18
DE502005009164D1 (de) 2010-04-22
EP1559359A2 (fr) 2005-08-03

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