EP4056087B1 - Hausstaubsauger, der mit einem schalldämpfenden hohlraum ausgestattet ist - Google Patents

Hausstaubsauger, der mit einem schalldämpfenden hohlraum ausgestattet ist Download PDF

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Publication number
EP4056087B1
EP4056087B1 EP22159745.3A EP22159745A EP4056087B1 EP 4056087 B1 EP4056087 B1 EP 4056087B1 EP 22159745 A EP22159745 A EP 22159745A EP 4056087 B1 EP4056087 B1 EP 4056087B1
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EP
European Patent Office
Prior art keywords
acoustic
air
vacuum cleaner
absorption element
air exhaust
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
EP22159745.3A
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English (en)
French (fr)
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EP4056087A1 (de
EP4056087C0 (de
Inventor
Bruno Vaganay
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SEB SA
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SEB SA
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Application granted granted Critical
Publication of EP4056087C0 publication Critical patent/EP4056087C0/de
Publication of EP4056087B1 publication Critical patent/EP4056087B1/de
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    • 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
    • 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
    • A47L5/362—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the horizontal type, e.g. canister or sledge 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

Definitions

  • the present invention relates to the field of domestic vacuum cleaners making it possible to vacuum up dust and waste present on a surface to be cleaned, which may for example be tiles, parquet, laminate, carpet or a rug.
  • the device suction When such a domestic vacuum cleaner is in operation, the device suction generates acoustic waves which propagate in particular in the air evacuation circuit and which induce noise and vibrations likely to disturb the user.
  • a vacuum cleaner with an absorbent element is disclosed by EP 1 905 334 A1 .
  • the present invention aims to remedy all or part of these drawbacks.
  • the technical problem underlying the invention consists in particular of providing a domestic vacuum cleaner which is simple and economical in structure, while significantly limiting the noise and vibrations generated by the domestic vacuum cleaner.
  • the air exhaust circuit comprises an acoustic attenuation cavity opening into the air exhaust duct, and an acoustic absorption element which is made of porous material and which is configured to separate the acoustic attenuation cavity and the air exhaust duct, the sound absorption element and the sound attenuation cavity are configured such that that, when the domestic vacuum cleaner is in operation, at least part of the acoustic waves, coming from the suction device and propagating in the air exhaust duct, pass through the acoustic absorption element and enter the acoustic attenuation cavity.
  • porous material reference is made in the present invention to a material porous to air.
  • Such a configuration of the air evacuation circuit, and more particularly of the path of the acoustic waves within the air evacuation circuit, makes it possible to significantly reduce the energy of the acoustic waves generated by the suction device, and therefore to significantly reduce the noise generated by the domestic vacuum cleaner, and this in a passive manner and without harming the aeraulic performance of the domestic vacuum cleaner.
  • the domestic vacuum cleaner may also have one or more of the following characteristics, taken alone or in combination.
  • the sound absorption element and the sound attenuation cavity are configured such that the acoustic waves having penetrated into the sound attenuation cavity are reflected on at least one internal wall of the sound attenuation cavity and such that at least part of the acoustic waves reflected on the at least one internal wall of the sound attenuation cavity passes through the sound absorption element again and penetrates again in the exhaust air duct.
  • Such reflection of the acoustic waves within the acoustic attenuation cavity results in a breakup of part of the acoustic waves and a reduction in the amplitude of some of the acoustic waves.
  • the sound absorption element is made of porous materials with cavities preferably with open cavities.
  • the sound absorption element is acoustically porous, and is advantageously made of acoustically porous material.
  • the sound absorption element is an acoustic foam.
  • the sound absorption element is positioned in the air exhaust duct.
  • the sound absorption element may extend over part of the width of the section of the air exhaust duct or over the entire width of the section of the air exhaust duct.
  • the sound absorption element extends over only part of the width of the section of the air exhaust duct and preferably over approximately half the width of the section of the air exhaust duct. air.
  • the acoustic attenuation cavity comprises a passage opening opening into the air exhaust duct, the sound absorption element covering the passage opening.
  • the passage opening is closed by the sound absorption element.
  • the housing comprises a waste collection compartment located upstream of the suction device, the waste collection compartment and the engine compartment being separated by a separation wall provided with an orifice Communication.
  • the waste collection device is a waste collection bag or a waste separation and collection device, for example of the cyclonic type.
  • the air stream extends substantially parallel to the second surface of the sound absorption element.
  • the first and second surfaces of the sound absorption element are substantially parallel.
  • the sound absorption element is parallelepiped.
  • the suction motor has a motor axis which is intersecting with the sound absorption element.
  • the motor axis intersects with the acoustic attenuation cavity.
  • the motor axis extends substantially horizontally when the domestic vacuum cleaner rests, for example by its wheels, on a horizontal surface.
  • the air exhaust circuit further comprises a filtration element arranged in the air exhaust duct upstream, and for example directly upstream, of the at least an air exhaust opening, and configured to filter the air flow flowing through the air exhaust duct.
  • the air exhaust circuit further comprises a flow guide element which partially delimits the air exhaust duct and which is arranged downstream of the element sound absorption, the flow guide element being configured to guide the air flow towards the at least one air exhaust opening.
  • the flow guide element comprises a plurality of flow guide fins which are arranged in the air exhaust duct and which extend substantially parallel to each other. to others.
  • each flow guide fin extends from the flow guide surface.
  • the at least one air exhaust opening opens into an upper external surface of the housing.
  • the air delivery opening is provided in a lower part of the engine casing.
  • the acoustic attenuation cavity is arranged in the housing, and for example in a rear part of the housing.
  • the sound absorption element is located at the rear of the suction device, and for example at the rear of the suction motor.
  • the at least one air exhaust opening is located above the suction device, and for example above the suction motor.
  • the domestic vacuum cleaner comprises a holding device configured to hold the sound absorption element in position in the air exhaust duct.
  • the passage opening of the acoustic attenuation cavity is oriented towards the suction motor.
  • Such a configuration of the acoustic attenuation cavity makes it possible to further reduce the noise generated by the domestic vacuum cleaner.
  • the acoustic attenuation cavity has a central axis which is substantially parallel to the motor axis. Such a configuration of the acoustic attenuation cavity makes it possible to further reduce the noise generated by the domestic vacuum cleaner.
  • the acoustic attenuation element extends partially inside the acoustic attenuation cavity.
  • the part of the sound attenuation element extending partially inside the sound attenuation cavity does not extend to the bottom of the sound attenuation cavity and remains at a distance from the bottom of the acoustic attenuation cavity to preserve an empty volume in the acoustic attenuation cavity.
  • THE figures 1 And 2 represent a domestic vacuum cleaner 2, such as a sled vacuum cleaner, comprising in particular a housing 3, also a vacuum cleaner body, comprising in known manner a waste collection compartment 4 and a motor compartment 5 which is located downstream of the collection compartment waste 4.
  • the waste collection compartment 4 and the engine compartment 5 are separated by a partition wall 6 provided with a communication orifice 7.
  • the waste collection compartment 4 is intended to receive a waste collection device (not shown in the figures), such as a waste collection bag or a waste separation and collection device, for example of the cyclonic type, making it possible to retain waste sucked into the housing 3.
  • the domestic vacuum cleaner 2 further comprises a suction nozzle 8 disposed in a front part of the housing 3 and through which air carrying waste is intended to be sucked into the housing 3.
  • the housing 3 is advantageously equipped with wheels 11 to ensure the movement of the domestic vacuum cleaner 2.
  • the domestic vacuum cleaner 2 further comprises a suction device 12 housed in the engine compartment 5.
  • the suction device 12 comprises a motor casing 13 delimiting an internal housing 14.
  • the engine casing 13 comprises a front fairing 13.1 and a rear fairing 13.2 assembled to one another for example by screwing or snap-fastening.
  • the suction device 12 further comprises an air inlet opening 15 fluidly connected to the suction nozzle 8 and a suction motor 16, also called a motorized fan, which is arranged in the internal housing 14 of the motor casing 13 and which is configured to generate a flow of air through the suction nozzle 8 and the air inlet opening 15.
  • the suction motor 16 comprises a fan and an electric motor configured to rotate the fan.
  • the suction motor 16 has a motor axis A which extends substantially horizontally when the domestic vacuum cleaner 2 rests, by its wheels 11, on a horizontal surface.
  • the suction device 12 also comprises an air discharge opening 17 through which the air flow is intended to leave the suction device 12.
  • the air discharge opening 17 can for example be provided in a lower part of the engine housing 13.
  • the domestic vacuum cleaner 2 also comprises an air exhaust circuit 18 comprising an air exhaust opening 19 opening into an upper external surface of the housing 3 and through which the air flow generated by the motor suction 16 is evacuated to the outside of the domestic vacuum cleaner 2.
  • the sound absorption element 24 is made of porous material, such as a porous material with open cavities, and more particularly of an acoustically porous material.
  • the sound absorption element 24 is for example an acoustic foam.
  • the sound absorption element 24 has a thickness of between 5 and 40 mm.
  • the sound absorption element 24 extends over only part of the width of the section of the air exhaust duct 21.
  • the domestic vacuum cleaner 2 comprises a holding device 25 configured to hold the sound absorption element 24 in position in the air exhaust duct 21.
  • the holding device 25 may, for example, comprise a plurality of holding tabs spaced from each other so as to allow the flow of air flow through the air exhaust duct 21.
  • the flow guide element 28 comprises a flow guide surface 28.1 which is curved and concave, and a plurality of flow guide fins 28.2 which extend from the flow guide surface 28.1 and which are arranged in the conduit air exhaust 21.
  • the flow guide fins 28.2 extend substantially parallel to each other.
  • the suction motor 16 When the suction motor 16 is electrically powered, it establishes a depression in particular in the waste collection device such that a flow of air, comprising waste, is sucked in by the suction nozzle 8. The air flow then flows successively through the communication port 7 and the air inlet opening 15 of the suction device 12. Then, the air flow flows through the opening air delivery 17 and along the air exhaust duct 21, and in particular in the air stream 26 and through the flow guide element 28 and the filtration element 27, before s escape towards the air exhaust opening 19.

Landscapes

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

Claims (10)

  1. Hausstaubsauger (2), umfassend:
    - ein Gehäuse (3),
    - eine Saugspitze (8), die auf dem Gehäuse (3) angeordnet ist und durch die Abfälle transportierende Luft in das Gehäuse (3) angesaugt werden kann,
    - eine Saugvorrichtung (12), die in einem Motorfach (5) des Gehäuses (3) untergebracht ist, wobei die Saugvorrichtung (12) eine Lufteingangsöffnung (15) aufweist, die mit der Saugspitze (8) fluidisch verbunden ist, wobei ein Motorgehäuse (13) eine innere Aufnahme (14), einen Ansaugmotor (16), der in der inneren Aufnahme (14) angeordnet ist und der dazu ausgelegt ist, einen Luftstrom durch die Saugspitze (8) und die Lufteingangsöffnung (15) zu erzeugen, und eine Luftausgabeöffnung (17) begrenzt,
    - einen Luftauslasskreis (18), der mindestens eine Luftauslassöffnung (19) umfasst, die auf dem Gehäuse (3) vorgesehen ist und durch die der vom Ansaugmotor (16) erzeugte Luftstrom aus dem Hausstaubsauger (2) ausgeleitet wird, und eine Luftauslassleitung (21), welche die Luftausgabeöffnung (17) der Saugvorrichtung (12) mit der mindestens einen Luftauslassöffnung (19) fluidisch verbindet,
    dadurch gekennzeichnet, dass der Luftauslasskreis (18) einen schalldämpfenden Hohlraum (22) aufweist, der in die Luftauslassleitung (21) ausmündet, und ein Schallabsorptionselement (24), das aus porösem Material ist und das dazu ausgelegt ist, den schalldämpfenden Hohlraum (22) und die Luftauslassleitung (21) zu trennen, wobei das Schallabsorptionselement (24) und der schalldämpfende Hohlraum (22) derart ausgelegt sind, dass, wenn der Hausstaubsauger (2) im Betrieb ist, mindestens ein Teil der Schallwellen, die von der Saugvorrichtung (12) kommen und sich in der Luftauslassleitung (21) ausbreiten, das Schallabsorptionselement (24) durchquert und in den schalldämpfenden Hohlraum (22) eindringt.
  2. Hausstaubsauger (2) nach Anspruch 1, wobei das Schallabsorptionselement (24) und der schalldämpfende Hohlraum (22) derart ausgelegt sind, dass die Schallwellen, die in den schalldämpfenden Hohlraum (22) eingedrungen sind, auf mindestens einer Innenwand des schalldämpfenden Hohlraums (22) reflektiert werden und derart, dass mindestens ein Teil der auf der mindestens einen Innenwand des schalldämpfenden Hohlraums (22) reflektierten Schallwellen erneut das Schallabsorptionselement (24) durchquert und erneut in die Luftauslassleitung (21) eindringt.
  3. Hausstaubsauger (2) nach Anspruch 1 oder 2, wobei das Schallabsorptionselement (24) ein Schallschaumstoff ist.
  4. Hausstaubsauger (2) nach einem der Ansprüche 1 bis 3, wobei das Schallabsorptionselement (24) in der Luftauslassleitung (21) positioniert ist.
  5. Hausstaubsauger (2) nach einem der Ansprüche 1 bis 4, wobei der schalldämpfende Hohlraum (22) eine Durchgangsöffnung (23) aufweist, die in die Luftauslassleitung (21) ausmündet, wobei das Schallabsorptionselement (24) die Durchgangsöffnung (23) abdeckt.
  6. Hausstaubsauger (2) nach einem der Ansprüche 1 bis 5, wobei der schalldämpfende Hohlraum (22) im Gehäuse (3) angeordnet ist.
  7. Hausstaubsauger (2) nach einem der Ansprüche 1 bis 6, wobei sich das Schallabsorptionselement hinter der Saugvorrichtung (12) befindet.
  8. Hausstaubsauger (2) nach einem der Ansprüche 1 bis 7, wobei das Schallabsorptionselement (24) eine erste Oberfläche (24.1) umfasst, die zum schalldämpfenden Hohlraum (22) ausgerichtet ist, und eine zweite Oberfläche (24.2) gegenüber der ersten Oberfläche (24.1), wobei der Luftauslasskreis (18) einen Luftkanal (26) aufweist, der teilweist von der zweiten Oberfläche (24.2) des Schallabsorptionselements (24) begrenzt ist und in dem der Luftstrom zu zirkulieren bestimmt ist.
  9. Hausstaubsauger (2) nach Anspruch 8, wobei sich der Luftkanal (26) etwa parallel zur zweiten Oberfläche (24.2) des Schallabsorptionselements (24) erstreckt.
  10. Hausstaubsauger (2) nach einem der Ansprüche 1 bis 9, wobei der Ansaugmotor (16) eine Motorachse (A) aufweist, die mit dem Schallabsorptionselement (24) schneidend ist.
EP22159745.3A 2021-03-08 2022-03-02 Hausstaubsauger, der mit einem schalldämpfenden hohlraum ausgestattet ist Active EP4056087B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2102224A FR3120296B1 (fr) 2021-03-08 2021-03-08 Aspirateur domestique équipé d’une cavité d’atténuation acoustique

Publications (3)

Publication Number Publication Date
EP4056087A1 EP4056087A1 (de) 2022-09-14
EP4056087C0 EP4056087C0 (de) 2023-12-13
EP4056087B1 true EP4056087B1 (de) 2023-12-13

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Application Number Title Priority Date Filing Date
EP22159745.3A Active EP4056087B1 (de) 2021-03-08 2022-03-02 Hausstaubsauger, der mit einem schalldämpfenden hohlraum ausgestattet ist

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EP (1) EP4056087B1 (de)
CN (1) CN115089047A (de)
FR (1) FR3120296B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3143309A1 (fr) * 2022-12-16 2024-06-21 Seb S.A. Dispositif d’aspiration pour aspirateur domestique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944749A1 (de) * 1979-11-06 1981-05-14 Rommag P. Wörwag & Co., Romanshorn Staubsauger
JPH03272721A (ja) * 1990-03-20 1991-12-04 Matsushita Electric Ind Co Ltd 電気掃除機
DE10247550A1 (de) * 2002-10-11 2004-04-22 Werner, Jürgen Radialgebläse für Laub- und Abfallsauger, Laubbläser oder Laubladegeräte
FR2906449B1 (fr) * 2006-09-29 2008-11-07 Seb Sa Aspirateur muni d'un dispositif d'attenuation du bruit.
FR2967882B1 (fr) * 2010-11-25 2013-08-23 Seb Sa Corps principal d'aspirateur
DE102018118776A1 (de) * 2018-08-02 2020-02-06 Miele & Cie. Kg Staubsauger

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CN115089047A (zh) 2022-09-23
FR3120296A1 (fr) 2022-09-09
EP4056087A1 (de) 2022-09-14
EP4056087C0 (de) 2023-12-13
FR3120296B1 (fr) 2023-02-10

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