EP4385376B1 - Absaugvorrichtung für haushaltsstaubsauger - Google Patents

Absaugvorrichtung für haushaltsstaubsauger

Info

Publication number
EP4385376B1
EP4385376B1 EP23214780.1A EP23214780A EP4385376B1 EP 4385376 B1 EP4385376 B1 EP 4385376B1 EP 23214780 A EP23214780 A EP 23214780A EP 4385376 B1 EP4385376 B1 EP 4385376B1
Authority
EP
European Patent Office
Prior art keywords
air
absorbing element
sound absorbing
suction device
compartment
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
EP23214780.1A
Other languages
English (en)
French (fr)
Other versions
EP4385376C0 (de
EP4385376A1 (de
Inventor
Bruno Vaganay
Eric Gellez
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.)
SEB SA
Original Assignee
SEB SA
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 SEB SA filed Critical SEB SA
Publication of EP4385376A1 publication Critical patent/EP4385376A1/de
Application granted granted Critical
Publication of EP4385376C0 publication Critical patent/EP4385376C0/de
Publication of EP4385376B1 publication Critical patent/EP4385376B1/de
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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/22—Mountings for motor fan assemblies
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • 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
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping

Definitions

  • the present invention relates to the field of domestic vacuum cleaners for vacuuming dust and waste present on a surface to be cleaned, which can for example be tile, parquet, laminate, carpet or rug.
  • the airflow it generates flows successively into a first annular volume delimited by the electric motor and the inner casing, then into a second annular volume delimited by the inner and outer casings, then into the vertical air exhaust duct and the horizontal air exhaust duct and finally through the air exhaust opening.
  • the present invention aims to remedy all or part of these drawbacks.
  • the technical problem underlying the invention consists in particular of providing a suction device which is simple and economical in structure, while limiting the noise generated by such a suction device.
  • the air exhaust circuit includes a partition wall which is configured to separate at least partially the first compartment and the air exhaust duct, the partition wall being rigid and not permeable to air, and the sound absorption element is configured such that, when the electric motor is in operation, at least part of the airflow, exiting at least one air outlet opening and flowing into the first compartment, passes through the sound absorption element and enters the second compartment.
  • This configuration of the acoustic absorption element generates pressure losses within the extraction system, which reduces the airflow velocity. Furthermore, the presence of the acoustic absorption element helps to homogenize the airflow downstream of the extraction motor, particularly in the exhaust system. This reduction in airflow velocity and homogenization helps to reduce turbulence. within the suction device, and therefore the noise generated by the airflow circulating in the suction device.
  • the sound-absorbing element helps to reduce noise from the moving parts of the suction motor, and more specifically from the fan and the electric motor.
  • the specific configuration of the suction device according to the present invention makes it possible to significantly reduce the noise generated by the airflow passing through the suction device and the noise generated by the suction motor.
  • the suction device may also have one or more of the following characteristics, taken alone or in combination.
  • the sound-absorbing element has a general plate shape.
  • the sound-absorbing element may, for example, have an overall rectangular shape.
  • the sound-absorbing element is an acoustic foam.
  • the sound-absorbing element is made of porous material with open cavities.
  • the acoustic absorption element is acoustically porous, and is advantageously made of acoustically porous material.
  • the acoustic absorption element comprises a first face oriented towards the fan and a second face opposite the first respective face, the first and second faces of the acoustic absorption element being substantially parallel.
  • the acoustic absorption element is configured such that, when the electric motor is running, at least a portion of the airflow that has passed through the acoustic absorption element and entered the second compartment passes through the acoustic absorption element again and enters the air exhaust duct.
  • This configuration of the acoustic absorption element further reduces turbulence within the suction device and thus further reduces the noise generated by it.
  • the sound-absorbing element extends radially around the electric motor.
  • the sound-absorbing element extends substantially perpendicularly to the motor axis.
  • the acoustic absorption element extends to the internal walls of the main housing. Such a configuration of the acoustic absorption element allows for the absorption of noise from both the fan and the electric motor, and thus further reduces the noise generated by the suction device.
  • the acoustic absorption element has external edges configured to bear against the internal walls of the main housing.
  • the main casing comprises a first fairing and a second fairing which are fixed to each other and which delimit the internal housing.
  • the sound-absorbing element has a shape complementary to that of a portion of the main housing in which the sound-absorbing element is located, and for example to that of the first fairing or the second fairing.
  • the acoustic absorption element further reduces the noise generated by the suction device.
  • the first and second compartments are separated from each other by the acoustic absorption element.
  • the acoustic absorption element includes a motor passage opening into which the electric motor is inserted, and more particularly a motor housing for the electric motor.
  • the sound-absorbing element comprises an internal circumferential surface that defines the motor passage opening and is configured to cooperate with an external circumferential surface of the electric motor housing. This configuration of the sound-absorbing element allows for the absorption of an additional portion of the noise generated by the electric motor, and thus further reduces the noise generated by the suction device.
  • the suction motor comprises an annular support surface against which the acoustic absorption element rests.
  • the partition extends substantially parallel to the motor axis, and for example from a bottom wall of the first compartment.
  • the sound-absorbing element is configured to bear against the partition wall, and for example against an upper edge of the partition wall, at least in one operating mode of the electric motor.
  • the acoustic absorption element and the first compartment are configured such that, when the electric motor is running, the entire airflow exiting the at least An air outlet opening, flowing into the first compartment, passes through the acoustic absorption element before entering the air exhaust duct.
  • This configuration of the acoustic absorption element further reduces the noise generated by the suction device according to the present invention.
  • Such a configuration of the acoustic absorption element allows, at least in one operating mode of the suction device, for the airflow to be forced to pass completely through the acoustic absorption element before exiting the suction device. These arrangements further reduce the noise generated by the suction arrangement according to the present invention.
  • the sound-absorbing element is configured to be deformed from the first configuration to the second configuration when a depression in the internal housing exceeds a predetermined value.
  • the sound-absorbing element deforms and presses against the partition wall. The airflow then passes completely through the sound-absorbing element before exiting the suction device.
  • the suction device includes an additional sound-absorbing element made of porous material and disposed at least partially in the air exhaust duct.
  • the additional sound-absorbing element is an acoustic foam.
  • the additional sound-absorbing element extends substantially parallel to the motor axis.
  • the additional sound-absorbing element is arranged under the sound-absorbing element.
  • the additional sound-absorbing element has an upper edge extending near, and for example in contact with, the sound-absorbing element.
  • the air exhaust duct comprises an air channel delimited in part by the additional acoustic absorption element.
  • the air stream is delimited at least in part by the partition wall and the additional acoustic absorption element.
  • the main casing and the acoustic absorption element delimit the second compartment.
  • the main casing, the acoustic absorption element, and the partition partition define the first compartment.
  • the additional sound-absorbing element is arranged opposite the partition wall.
  • the additional sound-absorbing element comprises a first surface oriented towards the partition wall and a second surface which is opposite the respective first surface.
  • the air vein is delimited in part by the partition wall and the first surface of the additional acoustic absorption element.
  • the air stream extends substantially parallel to the motor axis.
  • the air evacuation circuit comprises flow guide fins which extend from the partition wall and which are arranged in the air evacuation duct.
  • the additional acoustic absorption element rests against the flow guide fins.
  • the flow guide fins are configured to immobilize the additional acoustic absorption element.
  • the main casing includes an air intake part provided with at least one air intake opening.
  • the suction device further comprises an upstream acoustic absorption element fixed to the main housing and positioned upstream of the air intake, the upstream acoustic absorption element being made of a porous material and covering at least part of at least one air intake opening.
  • the presence of the upstream acoustic absorption element limits turbulence upstream of the air intake opening and homogenizes the airflow circulating around the periphery of the air intake opening and towards the interior of the suction motor. The noise The turbulence generated by the airflow circulating upstream of the suction motor is thus reduced by eliminating these disturbances.
  • the airflow, passing through the acoustic absorption element and then the air passages provided on the air intake section, is made uniform at the inlet of the fan blades equipping the suction motor. This reduces both the load noise due to the stationary aerodynamic forces exerted on the fan blades and the noise resulting from the shear stresses of the turbulent flow around the blades.
  • the upstream acoustic absorption element comprises a first face oriented towards at least one air inlet opening and a second face opposite the first face.
  • the upstream acoustic absorption element includes at least one through-hole opening which leads respectively into the first and second faces of the upstream acoustic absorption element and which is located opposite the at least one air inlet opening. The presence of at least one through-hole prevents any blockage of the airflow through the upstream acoustic absorption element in the event of the latter becoming clogged.
  • the air inlet opening is located opposite at least one air intake opening.
  • the air intake part comprises several air intake openings.
  • the first face of the upstream acoustic absorption element bears against the air intake part.
  • the upstream sound absorption element is an acoustic foam.
  • At least one through orifice is located at least partly opposite the air inlet opening.
  • the main housing includes a receiving housing in which the acoustic absorption element is housed.
  • the air exhaust circuit further comprises a filtration element configured to filter the airflow passing through at least one air exhaust opening.
  • the present invention further relates to a domestic vacuum cleaner, such as a canister vacuum cleaner, comprising a suction device according to the present invention.
  • the suction nozzle is disposed in a front part of the housing.
  • the suction motor is configured to generate an airflow through the suction nozzle and the air inlet opening.
  • the household vacuum cleaner includes a waste separation and collection device located upstream of the suction motor and configured to retain waste carried by the airflow generated by the suction motor.
  • the waste separation and collection device is removably mounted on the housing.
  • the waste separation and collection device is of the cyclonic type.
  • the domestic vacuum cleaner includes a connecting conduit configured to fluidly connect an air outlet of the waste separation and collection device to at least one air intake opening provided on the main housing.
  • At least one air exhaust opening is directed towards the waste separation and collection device.
  • the sound-absorbing element is configured to extend substantially horizontally when the housing rests, for example by its wheels, on a horizontal surface.
  • the motor shaft is configured to extend substantially vertically when the housing rests, for example by its wheels, on a horizontal surface.
  • upstream and downstream are defined with respect to the direction of flow of the airflow generated by the suction motor.
  • THE figures 1 to 11 represent a domestic vacuum cleaner 2, such as a canister vacuum cleaner, comprising in particular a housing 3, also called the vacuum cleaner body, including a suction nozzle 4 through which air carrying waste is intended to be sucked into the housing 3.
  • the suction nozzle 4 is arranged in a front part of the housing 3.
  • the housing 3 is equipped with wheels 5 to ensure the movement of the housing 3 over a surface to be cleaned.
  • the domestic vacuum cleaner 2 may also include a flexible hose (not shown in the figures) connected, for example in a removable way, to the suction nozzle 4, and a suction accessory (not shown in the figures) such as, for example, a rigid telescopic tube which can receive, at its end opposite the flexible hose, a removable suction head.
  • a flexible hose not shown in the figures
  • a suction accessory such as, for example, a rigid telescopic tube which can receive, at its end opposite the flexible hose, a removable suction head.
  • the domestic vacuum cleaner 2 also includes a waste separation and collection device 6 which can, for example, be removably mounted on the housing 3.
  • the waste separation and collection device 6 is of the cyclonic type, and comprises a waste collection container 7, and a cyclonic separation chamber 8 which is annular and which is externally delimited by a side wall of the waste collection container 7.
  • the domestic vacuum cleaner 2 further includes a suction device 9 which is housed in a motor compartment 11 delimited by the casing 3 and which is located downstream of the waste separation and collection device 6.
  • the suction device 9 includes a main housing 12 defining an internal housing 13.
  • the main housing 12 comprises a first fairing 12.1 and a second fairing 12.2 assembled to each other for example by screwing or snapping.
  • the main housing 12 includes an air intake portion 14, such as an air intake grille, attached to the second fairing 12.2 and provided with several air intake openings 15.
  • Each air intake opening 15 may, for example, have a diameter between 1 mm and 3 mm.
  • the air intake portion 14 is flat and circular in shape.
  • the air intake portion 14 may, for example, be formed by a perforated plate attached to the second fairing 12.2.
  • the domestic vacuum cleaner 2 includes a connecting conduit 16 configured to fluidly connect an air outlet of the waste separation and collection device 6 to the air intake openings 15 provided on the main casing 12.
  • the suction device 9 further includes a suction motor 17, also called a motor-fan, which is disposed in the internal housing 13 of the main housing 12 and which includes an air inlet opening 18 fluidly connected to the suction nozzle 4 and located opposite at least a part of the air intake openings 15 provided on the air intake part 14.
  • a suction motor 17 also called a motor-fan
  • the air intake part 14 and the air inlet opening 18 are arranged coaxially.
  • the suction motor 17 is configured to generate an airflow through the suction nozzle 4, the waste separation and collection device 6, the connecting duct 16, the air intake openings 15 and the opening air inlet 18.
  • the suction motor 17 includes a fan 19 and an electric motor 21 configured to drive the fan 19 in rotation.
  • the fan 19 may include a fan cover 22 covering at least partially the fan blade 19 and defining the air inlet opening 18.
  • the suction motor 17 also includes at least one air outlet opening 23 leading into the internal housing 13 and through which the airflow is intended to leave the suction motor 17 and can flow into the internal housing 13.
  • the air outlet opening or openings 23 may, for example, be provided in a lower part of the motor housing 24 of the suction motor 17.
  • the suction motor 17 has a motor shaft A which extends substantially vertically when the housing 3 rests, by its wheels 5, on a horizontal surface.
  • the suction device 9 further includes a sound-absorbing element 25, which is disposed in the internal housing 13 and is made of a porous material, for example, an open-cell porous material.
  • a sound-absorbing element 25 is an acoustic foam, such as a cellular polyurethane foam, and in particular an open-cell polyurethane foam.
  • the sound-absorbing element 25 may, for example, have a net density of between 26 and 30 kg/ m3 (measured according to ISO 845), a compressive strength at 40% indentation of between 2.0 and 4.0 kPa (measured according to ISO 3386/1), a tensile strength of between 190 and 210 kPa (measured according to ISO 1798), and for example of approximately 200 kPa, an elongation at break of between 320 and 370% (measured according to ISO 1798), and for example of approximately 350%, and a cell diameter between 440 and 450 ⁇ m (measured according to the Recticel/T.013.4 method).
  • the sound-absorbing element 25 extends radially around the electric motor 21 and separates the internal housing 13 into a first compartment 26 in which the electric motor 21 is at least partly disposed and a second compartment 27 in which the fan 19 is disposed.
  • the air outlet opening or openings 23 open more particularly into the first compartment 26.
  • the sound-absorbing element 25 has a general plate shape and is overall rectangular.
  • the sound-absorbing element 25 is configured to extend substantially horizontally when the housing 3 rests, for example by its wheels 5, on a horizontal surface.
  • the sound-absorbing element 25 has a first face oriented towards the fan 19 and a second face opposite the respective first face.
  • the first and second faces of the sound-absorbing element 25 are substantially parallel.
  • the suction motor 17 has an annular support surface 28 against which the acoustic absorption element 25 rests.
  • the sound-absorbing element 25 includes a motor passage opening 29 into which the electric motor 21 is inserted, and more particularly the motor housing 24 of the electric motor 21.
  • the sound-absorbing element 25 includes an internal circumferential surface that delimits the motor passage opening 29 and that is configured to cooperate with an external circumferential surface of the motor housing 24.
  • the internal circumferential surface has a shape complementary to that of the external circumferential surface of the motor housing 24.
  • the sound-absorbing element 25 extends to the internal walls of the main housing 12 and has a shape complementary to that of a portion of the main housing 12 in which the sound-absorbing element 25 is located, and for example to that of the first fairing 12.1 or the second fairing 12.2.
  • the sound-absorbing element 25 has external edges configured to bear against the internal walls of the main housing 12.
  • the first and second compartments 26, 27 are separated from each other by the sound-absorbing element 25.
  • the suction device 9 also includes an air exhaust circuit 31 comprising an air exhaust opening 32 (see the figure 6 ) opening into an external surface of the main housing 12 and through which the airflow generated by the suction motor 17 is evacuated to the outside of the suction device 9.
  • the air evacuation opening 32 is oriented towards the waste separation and collection device 6.
  • the air evacuation circuit 31 further includes an air evacuation duct 33 which fluidly connects the internal housing 13, and therefore the air outlet opening(s) 23, to the air evacuation opening 32.
  • the sound-absorbing element 25 is configured such that, when the electric motor 21 is in operation, at least part of the airflow, exiting the air outlet opening(s) 23 and flowing into the first compartment 26, passes through the sound-absorbing element 25 and enters the second compartment 27, then passes through the sound-absorbing element 25 again and enters the air exhaust duct 33.
  • the air exhaust circuit 31 further includes a partition 34 which is configured to separate the first compartment 26 and the air exhaust duct 33.
  • the partition 34 is rigid and airtight.
  • the partition 34 extends substantially parallel to the axis of motor A, and for example from a bottom wall of the first compartment 26.
  • the sound-absorbing element 25 can, for example, be configured to be deformed from the first configuration to the second configuration when a depression in the internal housing 13 exceeds a predetermined value.
  • the sound-absorbing element 25 could be constantly supported against the upper edge of the partition 34, and the sound-absorbing element 25 and the first compartment 26 could be configured such that, when the electric motor 21 is running, the entire airflow exiting the air outlet openings 23 and flowing into the first compartment 26, passes through the acoustic absorption element 25 before entering the air exhaust duct 33.
  • the suction device 9 includes an additional sound-absorbing element 36 which is made of porous material and is disposed in the air exhaust duct 33.
  • the additional sound-absorbing element 36 is an acoustic foam, such as a cellular polyurethane foam and in particular an open-cell polyurethane foam.
  • the additional sound-absorbing element 36 extends substantially parallel to the motor axis A and is located opposite the partition wall 34.
  • the additional sound-absorbing element 36 comprises a first surface oriented towards the partition wall 34 and a second surface opposite the first.
  • the first and second surfaces of the additional sound-absorbing element 36 are substantially parallel.
  • the additional sound-absorbing element 36 extends below the sound-absorbing element 25.
  • the additional sound-absorbing element 36 may, for example, have an upper edge extending near, and for example in contact with, the sound-absorbing element 25.
  • the air exhaust duct 33 more particularly includes an air vein 37 which extends substantially parallel to the axis of motor A and which is delimited in part by the additional acoustic absorption element 36 and the partition wall 34.
  • the air exhaust circuit 31 includes flow guide fins 38 extending from the partition wall 34 and arranged in the air exhaust duct 33.
  • the flow guide fins 38 bear against the additional sound absorption element 36, and are in particular configured to immobilize the additional sound absorption element 36.
  • the air exhaust circuit 31 further includes a filter element 39 configured to filter the airflow passing through the air exhaust opening 32.
  • the filter element 39 may, for example, be housed at least partly in the air exhaust opening 32, and be located at the rear of the waste separation and collection device 6.
  • the suction device 9 also includes an upstream sound-absorbing element 41 fixed to the main housing 12 and positioned upstream of the air intake portion 14.
  • the upstream sound-absorbing element 41 is made of a porous material, for example, an open-cavity porous material.
  • the upstream sound-absorbing element 41 is an acoustic foam, such as a cellular polyurethane foam, and in particular an open-cell polyurethane foam.
  • the main casing 12, and more particularly the second fairing 12.2 includes a retaining wall 42 extending from an external surface of the second fairing 12.2 and extending around the air intake part 14 and the upstream acoustic absorption element 41.
  • the air intake part 14 and the retaining wall 42 define at least part of a receiving housing 43 in which the upstream acoustic absorption element 41 is housed.
  • the upstream sound-absorbing element 41 extends perpendicularly to the motor axis A and is configured to extend horizontally when the housing 3 rests, for example, on its wheels 5, on a horizontal surface.
  • the upstream sound-absorbing element 41 can, for example, be generally parallelepiped-shaped and have an overall rectangular shape.
  • the upstream sound-absorbing element 41 comprises a first face 41.1 oriented towards the air inlet openings 15 and a second face 41.2 opposite the first face 41.1.
  • the first and second faces 41.1, 41.2 of the upstream sound-absorbing element 41 are substantially parallel, and the first face 41.1 of the absorption element.
  • the upstream acoustic element 41 rests against the air intake part 14 in such a way that the upstream acoustic absorption element 41 covers several air intake openings 15.
  • the suction device 9 is configured such that at least part of the airflow, generated by the suction motor 17, flows through the upstream acoustic absorption element 41 and towards the air intake openings 15.
  • the upstream sound-absorbing element 41 has a through-hole 44 which opens into the first and second faces 41.1 and 41.2 of the upstream sound-absorbing element 41, respectively, and is located opposite at least part of the air inlet openings 15.
  • the through-hole 44 is cylindrical and has a circular cross-section.
  • the through-hole 44 and the air inlet opening 18 are arranged coaxially.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Electric Suction Cleaners (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Claims (15)

  1. Ansaugvorrichtung (9) für einen Haushaltsstaubsauger (2), beinhaltend:
    - ein Hauptgehäuse (12), das eine interne Aufnahme (13) abgrenzt und mindestens eine Lufteinlassöffnung (15) beinhaltet, die in der internen Aufnahme (13) mündet,
    - einen Ansaugmotor (17), der in der internen Aufnahme (13) angeordnet ist und eine Lufteingangsöffnung (18) beinhaltet, die mit der mindestens einen Lufteinlassöffnung (15) und mindestens einer Luftauslassöffnung (23) fluidisch verbunden ist, wobei der Ansaugmotor (17) ein Gebläse (19) und einen Elektromotor (21) mit einer Motorachse (A) umfasst und konfiguriert ist, um das Gebläse (19) in Rotation zu versetzen, wobei der Ansaugmotor (17) zum Erzeugen eines Luftstroms durch die mindestens eine Lufteinlassöffnung (15) und die Lufteingangsöffnung (18) konfiguriert ist,
    - einen Entlüftungskreislauf (31), beinhaltend mindestens eine Entlüftungsöffnung (32), die an dem Hauptgehäuse (12) vorgesehen ist und durch die der von dem Ansaugmotor (17) erzeugte Luftstrom in Richtung der Außenseite der Ansaugvorrichtung (9) entlüftet wird, und eine Entlüftungsleitung (33), die die interne Aufnahme (13) mit der mindestens einen Entlüftungsöffnung (32) fluidisch verbindet, und
    - ein Schallabsorptionselement (25), das aus einem porösen Material besteht und das in der internen Aufnahme (13) angeordnet ist, wobei sich das Schallabsorptionselement (25) um den Elektromotor (21) herum erstreckt und die interne Aufnahme (13) in ein erstes Kompartiment (26), in dem der Elektromotor (21) mindestens zum Teil angeordnet ist, und ein zweites Kompartiment (27) unterteilt, in dem das Gebläse (19) angeordnet ist, wobei die mindestens eine Luftauslassöffnung (23) in dem ersten Kompartiment (26) mündet,
    dadurch gekennzeichnet, dass der Entlüftungskreislauf (31) eine Trennwand (34) umfasst, die konfiguriert ist zum Trennen, mindestens zum Teil, des ersten Kompartiments (26) und der Entlüftungsleitung (33), wobei die Trennwand (34) starr und luftundurchlässig ist, und dadurch, dass das Schallabsorptionselement (25) derart konfiguriert ist, dass, wenn der Elektromotor (21) in Betrieb ist, mindestens ein Teil des Luftstroms, der aus der mindestens einen Luftauslassöffnung (23) austritt und in das erste Kompartiment (26) strömt, das Schallabsorptionselement (25) durchquert und in das zweite Kompartiment (27) eindringt.
  2. Ansaugvorrichtung (9) nach Anspruch 1, wobei das Schallabsorptionselement (25) derart konfiguriert ist, dass, wenn der Elektromotor (21) in Betrieb ist, der mindestens eine Teil des Luftstroms, der das Schallabsorptionselement (25) durchquert hat und in das zweite Kompartiment (27) eingedrungen ist, abermals das Schallabsorptionselement (25) durchquert und in die Entlüftungsleitung (33) eindringt.
  3. Ansaugvorrichtung (9) nach Anspruch 1 oder 2, wobei sich das Schallabsorptionselement (25) radial um den Elektromotor (21) herum erstreckt.
  4. Ansaugvorrichtung (9) nach einem der Ansprüche 1 bis 3, wobei sich das Schallabsorptionselement (25) bis zu den internen Wänden des Hauptgehäuses (12) erstreckt.
  5. Ansaugvorrichtung (9) nach einem der Ansprüche 1 bis 4, wobei das Schallabsorptionselement (25) eine Form aufweist, die zu jener eines Teils des Hauptgehäuses (12) komplementär ist, in dem das Schallabsorptionselement (25) angeordnet ist.
  6. Ansaugvorrichtung (9) nach einem der Ansprüche 1 bis 5, wobei das Schallabsorptionselement (25) eine Motordurchgangsöffnung (29) umfasst, in der der Elektromotor (21) eingesetzt ist.
  7. Ansaugvorrichtung (9) nach einem der Ansprüche 1 bis 6, wobei das Schallabsorptionselement (25) mindestens in einem Betriebsmodus des Elektromotors (21) zur Auflage an der Trennwand (34) konfiguriert ist.
  8. Ansaugvorrichtung (9) nach einem der Ansprüche 1 bis 7, wobei das Schallabsorptionselement (25) verformbar ist zwischen:
    - einer ersten Konfiguration, wobei das Schallabsorptionselement (25) sich in einem Abstand von der Trennwand (34) befindet und mit der Trennwand (34) einen Luftdurchgang (35) abgrenzt, der das erste Kompartiment (26) derart fluidisch mit der Entlüftungsleitung (33) verbindet, dass, wenn der Elektromotor (21) in Betrieb ist, mindestens ein Teil des Luftstroms, der aus der mindestens einen Luftauslassöffnung (23) austritt und in das erste Kompartiment (26) strömt, in den Luftdurchgang (35) und in Richtung der Entlüftungsleitung (33) strömt, ohne durch das Schallabsorptionselement (25) zu strömen, und
    - einer zweiten Konfiguration, wobei das Schallabsorptionselement (25) derart an der Trennwand (34) aufliegt, dass, wenn der Elektromotor (21) in Betrieb ist, die Gesamtheit des Luftstroms, der aus der mindestens einen Luftauslassöffnung (23) austritt und in das erste Kompartiment (26) strömt, das Schallabsorptionselement (25) durchquert, bevor er in die Entlüftungsleitung (33) eindringt.
  9. Ansaugvorrichtung (9) nach Anspruch 8, wobei das Schallabsorptionselement (25) konfiguriert ist, um von der ersten Konfiguration in die zweite Konfiguration verformt zu werden, wenn ein Unterdruck in der internen Aufnahme (13) einen vorbestimmten Wert überschreitet.
  10. Ansaugvorrichtung (9) nach einem der Ansprüche 1 bis 9, wobei das Schallabsorptionselement (25) ein Akustikschaumstoff ist.
  11. Ansaugvorrichtung (9) nach einem der Ansprüche 1 bis 10, die ein zusätzliches Schallabsorptionselement (36) umfasst, das aus einem porösen Material besteht und das mindestens zum Teil in der Entlüftungsleitung (33) angeordnet ist.
  12. Ansaugvorrichtung (9) nach Anspruch 11, wobei sich das zusätzliche Schallabsorptionselement (36) im Wesentlichen parallel zu der Motorachse (A) erstreckt.
  13. Ansaugvorrichtung (9) nach Anspruch 11 oder 12, wobei die Entlüftungsleitung (33) eine Luftvene (37) umfasst, die zum Teil durch das zusätzliche Schallabsorptionselement (36) abgegrenzt ist.
  14. Ansaugvorrichtung (9) nach Anspruch 13, wobei die Luftvene (37) mindestens zum Teil durch die Trennwand (34) und das zusätzliche Schallabsorptionselement (36) abgegrenzt ist.
  15. Haushaltsstaubsauger (2), umfassend eine Ansaugvorrichtung (9) nach einem der vorstehenden Ansprüche.
EP23214780.1A 2022-12-16 2023-12-06 Absaugvorrichtung für haushaltsstaubsauger Active EP4385376B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2213582A FR3143310B1 (fr) 2022-12-16 2022-12-16 Dispositif d’aspiration pour aspirateur domestique

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EP4385376A1 EP4385376A1 (de) 2024-06-19
EP4385376C0 EP4385376C0 (de) 2026-01-28
EP4385376B1 true EP4385376B1 (de) 2026-01-28

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3402603A1 (de) * 1984-01-26 1985-08-01 Electrostar Schöttle GmbH & Co, 7313 Reichenbach Staubsauger
AU2006200912A1 (en) * 2005-05-20 2006-12-07 Samsung Gwangju Electronics Co., Ltd. Exhausting apparatus of a motor assembly and a vacuum cleaner having the same
CN104997463B (zh) 2014-04-23 2017-07-28 江苏美的清洁电器股份有限公司 用于吸尘器的进气装置和吸尘器

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FR3143310B1 (fr) 2025-03-14
FR3143310A1 (fr) 2024-06-21
EP4385376C0 (de) 2026-01-28
EP4385376A1 (de) 2024-06-19
CN221285605U (zh) 2024-07-09

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