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EP4137021A1 - Tragbarer staubsauger, der mit einer schallabsorbierenden wand ausgestattet ist - Google Patents

Tragbarer staubsauger, der mit einer schallabsorbierenden wand ausgestattet ist Download PDF

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Publication number
EP4137021A1
EP4137021A1 EP22188922.3A EP22188922A EP4137021A1 EP 4137021 A1 EP4137021 A1 EP 4137021A1 EP 22188922 A EP22188922 A EP 22188922A EP 4137021 A1 EP4137021 A1 EP 4137021A1
Authority
EP
European Patent Office
Prior art keywords
filter
vacuum cleaner
air
portable vacuum
sound absorption
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
EP22188922.3A
Other languages
English (en)
French (fr)
Other versions
EP4137021C0 (de
EP4137021B1 (de
Inventor
Julie PERCHAUD
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 EP4137021A1 publication Critical patent/EP4137021A1/de
Application granted granted Critical
Publication of EP4137021C0 publication Critical patent/EP4137021C0/de
Publication of EP4137021B1 publication Critical patent/EP4137021B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • A47L9/127—Dry filters tube- or sleeve-shaped
    • 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
    • A47L5/24—Hand-supported suction cleaners
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1608—Cyclonic chamber constructions
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1658—Construction of outlets
    • A47L9/1666—Construction of outlets with filtering means
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1683—Dust collecting chambers; Dust collecting receptacles

Definitions

  • the present invention relates to the field of vacuum cleaners making it possible to suck up dust and waste present on a surface to be cleaned, which can for example be tiling, parquet, laminate, carpet or a rug.
  • a vacuum cleaner and more particularly a portable vacuum cleaner, comprises in known manner a main body equipped with a suction duct, a waste separation and collection device mounted on the main body, and a suction motor housed in the main body, the suction motor having a motor axis and being configured to generate an air flow through the suction duct and the waste separation and collection device.
  • the main body further comprises an air exhaust circuit through which the airflow generated by the suction motor is exhausted to the outside of the main body.
  • the air exhaust circuit is equipped with a filter configured to filter the flow of air flowing through the air exhaust circuit.
  • the present invention aims to remedy all or part of these drawbacks.
  • the technical problem underlying the invention consists in particular in providing a portable vacuum cleaner which is simple and economical in structure, while substantially reducing the noise generated by the portable vacuum cleaner during its use.
  • the present invention relates to a portable vacuum cleaner comprising a main body equipped with a suction duct, a device for separating and waste collection unit mounted on the main body, and a vacuum motor housed in the main body, the vacuum motor having a motor shaft and being configured to generate an airflow through the vacuum duct and the waste separation and collection device, the main body further comprising an air exhaust circuit through which the air flow generated by the suction motor is exhausted to the outside of the main body, the air exhaust circuit the air exhaust being equipped with a filter configured to filter the flow of air flowing through the air exhaust circuit.
  • the filter has a generally cylindrical shape and comprises an internal surface delimiting an internal chamber which is fluidly connected to an air discharge orifice of the suction motor, and the air evacuation circuit comprises a sound absorption wall which extends at least in part into the internal chamber of the filter, the internal surface of the filter and the acoustic absorption wall delimiting a first air stream and a second air stream in each of which is intended to circulate a part of the airflow.
  • filter having a generally cylindrical shape
  • the filter could optionally have a substantially frustoconical shape or a generally cylindrical shape with a C section or a section having the shape of a horseshoe.
  • the internal chamber also adopts a generally cylindrical shape.
  • the specific configuration of the filter according to the present invention makes it possible to reduce the noise generated by the portable vacuum cleaner while generating low pressure drops.
  • the fact of separating the internal chamber of the filter in two makes it possible to significantly reduce the amplitudes of the acoustic waves passing through the internal chamber of the filter.
  • the amplitudes of the acoustic waves are globally divided by two. This reduction in the acoustic amplitudes significantly reduces the acoustic emissions of the air flow passing through the filter.
  • such a configuration of the portable vacuum cleaner makes the use of the latter much more pleasant without significantly reducing the suction performance of the portable vacuum cleaner.
  • the portable vacuum cleaner may further have one or more of the following features, taken alone or in combination.
  • the sound absorption wall extends over at least part of the length of the filter, and for example over the entire length of the filter or over only a portion of the length of the filter.
  • the internal chamber has a circular cross section.
  • the first and second air streams are separated from each other by the sound absorption wall.
  • the sound absorption wall is configured such that the first and second air streams have substantially identical passage sections, and for example generally semi-cylindrical.
  • the filter has a longitudinal axis at the center of the filter.
  • the air evacuation circuit comprises a single sound absorption wall which is arranged and centered on the longitudinal axis of the filter in such a way that the sound absorption wall divides the internal chamber into two air streams. substantially identical.
  • the pressure drops induced by the air flows circulating in the two air veins, the amplitudes and the frequencies of the acoustic waves crossing the air veins are then substantially identical, which makes it possible to further optimize the sound absorption in the configuration according to the invention where the sound absorption wall is arranged in the internal chamber of a generally cylindrical filter.
  • an off-center sound absorption wall inside the internal chamber or several sound absorption walls arranged in parallel in the internal chamber do not make it possible to obtain optimal results because the passage sections would be different either in terms of section surfaces or section shapes.
  • the internal chamber has a first open end and a second closed end which is opposed to the first open end, the first open end of the internal chamber being directed towards the suction motor.
  • the sound absorption wall comprises a first end portion and a second end portion which is opposite the first end portion, the first end portion of the wall sound absorption being located axially substantially at the level of the first open end of the internal chamber or protruding out of the internal chamber from the first open end.
  • the sound absorption wall is elongated and extends along a direction of extension.
  • the direction of extension is substantially parallel to the longitudinal axis of the filter.
  • the sound absorption wall extends along the longitudinal axis of the filter.
  • the sound absorption wall has a generally planar shape and extends in an extension plane. Such a configuration of the sound absorption wall makes it possible to further limit the pressure drops induced by the sound absorption wall.
  • the sound absorption wall comprises the longitudinal axis of the filter.
  • the sound absorption wall symmetrically separates the internal chamber such that the first and second air streams are substantially identical.
  • the longitudinal axis of the filter is substantially coaxial with the motor axis of the suction motor.
  • the extension plane of the sound absorption wall is substantially parallel to the longitudinal axis of the filter.
  • Such an arrangement of the sound absorption wall makes it possible to further limit the pressure drops induced by the sound absorption wall.
  • the plane of extension of the acoustic absorption wall is substantially parallel to the motor axis of the suction motor.
  • the first and second air streams extend substantially parallel to the longitudinal axis of the filter.
  • the first and second air streams extend substantially parallel to the motor axis of the suction motor.
  • the longitudinal axis of the filter is parallel and distinct from the motor axis of the suction motor.
  • the longitudinal axis of the filter is inclined with respect to the motor axis of the suction motor.
  • the motor shaft of the suction motor intersects with the sound absorption wall. Such an arrangement of the sound absorption wall makes it possible to further reduce the noise generated by the portable vacuum cleaner.
  • the sound absorption wall comprises a structural support element and a sound absorption member which is made of porous material and which is fixed to the structural support element.
  • the sound absorption member can for example be fixed to the structural support element by gluing or by any other fixing means.
  • Such a configuration of the sound absorption wall makes it easier to fix it and to keep it in position in the internal chamber.
  • the structural element limits the deformations of the sound absorption wall and prevents vibration of the sound absorption wall when the air flow circulates in the internal chamber.
  • the acoustic absorption member is made of porous materials with open cavities.
  • the structural support element is a structural support web.
  • the structural support element is perforated. Such a configuration of the structural support element makes it possible to limit the pressure drops generated by the sound absorption wall.
  • the sound-absorbing member is fixed to the structural support element in such a way that the flow of air must flow through the sound-absorbing member before to be able to meet the supporting structural element.
  • the sound absorption member is fixed to the structural support element in such a way that the flow of air cannot directly encounter the structural support element.
  • the sound absorption member comprises a first sound absorption portion and a second sound absorption portion which each have a generally planar shape and which extend substantially parallel to one another. relative to the other, and a third sound absorption portion which connects the first and second sound absorption portions to each other, the structural support element being disposed between the first and second sound absorption portions.
  • the third acoustic absorption portion is oriented towards the suction motor.
  • the sound absorption member is folded back on itself so as to form the first and second sound absorption portions.
  • the acoustic absorption member is an acoustic foam.
  • the structural support element is rigid.
  • the structural support element is a support frame.
  • the structural support element is a support plate provided with a plurality of through passage orifices distributed over the support plate.
  • the air evacuation circuit comprises at least one air evacuation opening provided on the main body and through which the air flow generated by the suction motor is evacuated to the outside of the domestic vacuum cleaner, the at least one air exhaust opening being oriented in an orientation direction which extends substantially perpendicular to the sound absorption wall.
  • This configuration makes it possible to optimize the air path between the inlet of the filter and the air discharge opening provided on the main body. More specifically, this configuration makes it possible to limit the pressure drops between the inlet of the filter and the air discharge opening and to further improve the acoustic attenuation performance of the filter.
  • at least two air discharge openings are provided on the main body. The two air discharge openings are arranged such that an air discharge opening is formed on the main body on each side of the sound absorption wall.
  • the at least one air discharge opening opens into an upper outer surface of the main body.
  • the suction duct is arranged in a front part of the main body.
  • the filter is located at the rear of the suction motor.
  • the air evacuation circuit further comprises an additional sound absorption element which is made of porous material and which is located upstream of the filter, the additional sound absorption element comprising a passage opening which is fluidly connected to the air discharge port of the suction motor and which is located opposite the first open end of the inner chamber of the filter.
  • the sound absorption wall extends partly into the passage opening.
  • the first end portion of the sound absorption wall could be set back from the passage opening, and therefore not extend through the passage opening .
  • the additional acoustic absorption element is made of porous materials with open cavities.
  • the additional acoustic absorption element is an acoustic foam.
  • the additional acoustic absorption element is located between the suction motor and the filter.
  • the additional acoustic absorption element has an annular shape.
  • the filter comprises a first axial end face and a second axial end face which is opposite to the first axial end face, the additional sound absorption element covering at the least in part the first axial end face of the filter.
  • the additional acoustic absorption element comprises a first axial surface which is annular and which is oriented towards the suction motor, and a second axial surface which is annular and which is oriented towards the filter.
  • the second axial surface of the additional acoustic absorption element is in contact with the first axial end face of the filter.
  • the filter comprises a filtration part which is produced by a pleated filter medium and having an overall tubular shape.
  • the filtration part could be produced by a tubular shaped foam.
  • the main body at least partly delimits a reception chamber in which the filter and the sound absorption wall are removably received.
  • the portable vacuum cleaner comprises a removable cover which is removably fixed to the main body, the removable cover being configured to prevent access to the filter and to the acoustic absorption wall when the cover removable is attached to the main body and to allow access to the filter and to the sound absorption wall when the removable cover is removed.
  • the removable cover is arranged on a rear face of the main body of the portable vacuum cleaner.
  • the portable vacuum cleaner comprises at least one energy storage element, such as a rechargeable battery, configured to electrically power the portable vacuum cleaner, and in particular the suction motor.
  • energy storage element such as a rechargeable battery
  • the at least one energy storage element is housed in the main body, and for example in a grip handle provided on the main body.
  • the waste separation and collection device is of the cyclonic type.
  • the waste separation and collection device extends along an extension axis which is transverse to the motor axis of the suction motor.
  • the extension axis of the waste separation and collection device is substantially perpendicular to the motor axis.
  • the device for separating and collecting waste is removably mounted on the main body.
  • the portable vacuum cleaner comprises a support structure disposed in the main body and configured to support the filter.
  • the support structure comprises for example a perforated support part of generally tubular shape and around which the filter is mounted, the perforated support part being configured to support the filter and extending between the acoustic absorption wall and the filter .
  • the support structure is also configured to support the additional acoustic absorption element.
  • upstream and downstream are defined with respect to the direction of flow of an air flow within the portable vacuum cleaner.
  • THE figures 1 to 4 represent a portable vacuum cleaner 2 comprising a main body 3, a waste separation and collection device 4 removably mounted on the main body 3, and a suction motor 5 housed in the main body 3.
  • the main body 3 comprises in particular a suction duct 6 through which outside air can be sucked in by the portable vacuum cleaner 2, and a gripping handle 7 allowing the gripping of the portable vacuum cleaner 2 by a user.
  • the suction duct 6 is arranged in a front part of the main body 3, and the gripping handle 7 is arranged in a rear part of the main body 3.
  • the waste separation and collection device 4 comprises a waste collection container 8 comprising a side wall of generally tubular shape.
  • the waste separation and collection device 4 is advantageously of the cyclonic type, and further comprises a tubular separating member 9, such as a tubular grid, which is arranged in the waste collection container 8 coaxially with a central axis. of the waste collection container 8, and a cyclonic separation chamber 10 which is delimited externally by the side wall of the waste collection container 8, and internally by the tubular separation member 9.
  • the device for separating and collecting waste 4 further comprises an air intake opening 11 which is fluidly connected to the suction conduit 6 and which opens into the cyclonic separation chamber 10.
  • the suction motor 5 is more particularly configured to generate an air flow through the suction duct 6 and the waste separation and collection device 4.
  • the suction motor 5 comprises a motor housing 12 and a fan motor 13 disposed in the motor housing 12.
  • the fan motor 13 comprises a fan and an electric motor configured to drive the fan in rotation .
  • the suction motor 5 further comprises an air inlet orifice 14 and an air discharge orifice 15, and the portable vacuum cleaner 2 further comprises a connecting pipe 16 which fluidically connects the air inlet 14 of the suction motor 5 to an air outlet opening of the separating device and waste collection 4.
  • the waste separation and collection device 4 extends along an extension axis A
  • the suction motor 5 comprises a motor axis B which extends transversely to extension axis A, and advantageously perpendicular to extension axis A.
  • the portable vacuum cleaner 2 further comprises an energy storage element 17, such as a rechargeable battery, configured to electrically power the fan motor 13.
  • the energy storage element 17 is advantageously housed in the main body 3, and for example in the handle 7.
  • the main body 3 further comprises an air evacuation circuit 18 through which the air flow generated by the suction motor 5 is evacuated to the outside of the main body 3.
  • the air exhaust circuit 18 includes a filter 19 configured to filter the airflow flowing through the air exhaust circuit 18.
  • the filter 19 has a generally cylindrical shape and has a longitudinal axis at the center of the filter which extends substantially coaxially with the motor axis B.
  • the filter 19 is located at the rear of the suction motor 5.
  • the filter 19 comprises a first axial end face 19.1 and a second axial end face 19.2 which is opposite to the first axial end face 19.1, and further comprises a filtration part 21 which is produced by a filter medium pleated and having a generally tubular shape.
  • the filtration part 21 comprises an internal surface which delimits an internal chamber 22 which is fluidically connected to the air discharge orifice 15 of the suction motor 5.
  • the internal chamber 22 has a circular cross section, and comprises a first open end 22.1 which is oriented towards the suction motor 5 and a second closed end 22.2 which is opposite to the first open end 22.1 and which is located downstream of the first open end 22.1.
  • the air evacuation circuit 18 further comprises a sound absorption wall 23 which extends at least partly into the internal chamber 22 of the filter 19, such that the inner surface of the filter 19 and the sound absorption wall 23 delimit a first air stream 24.1 and a second air stream 24.2 in each of which is intended to circulate part of the air flow .
  • the sound absorption wall 23 is elongated and extends along a direction of extension which is substantially parallel to the longitudinal axis of the filter 19.
  • the sound absorption wall 23 can for example extend over the entire length of filter 19, or over only a portion of the length of filter 19.
  • the first and second air streams 24.1, 24.2 are separated from each other by the sound absorption wall 23, and the latter is configured in such a way that the first and second air streams 24.1, 24.2 have passage sections that are substantially identical, and for example generally semi-cylindrical.
  • the sound absorption wall 23 has a generally planar shape and extends in an extension plane which is substantially parallel to the longitudinal axis of the filter 19.
  • the sound absorption wall 23 comprises the longitudinal axis of the filter 19, and the first and second air streams 24.1, 24.2 extend substantially parallel to the longitudinal axis of the filter 19.
  • the longitudinal axis of the filter 19 is located in the median plane of the sound absorption wall.
  • the sound absorption wall 23 comprises a first end portion 23.1 which is located on the side of the suction motor 5 and a second end portion 23.2 which is opposite the first end portion 23.1. According to the embodiment shown in the figures, the first end portion 23.1 of the sound absorption wall 23 projects out of the internal chamber 22 from the first open end 22.1 of the internal chamber 22. However, according to a variant embodiment of the invention, the first end portion 23.1 of the sound absorption wall 23 could be located axially substantially at the level of the first open end 22.1 of the internal chamber 22, or be set back from the first open end 22.1 of the internal chamber 22.
  • the sound absorption wall 23 comprises a structural support element 24, which is advantageously rigid and perforated, and a sound absorption member 25 which is made of porous material and which is fixed to the structural support element 24 for example by gluing or by any other fixing means.
  • the structural support element 24 can for example be formed by a support frame, or by a support plate provided with a plurality of through passage orifices distributed over the support plate.
  • the sound absorption member 25 is an acoustic foam which may have a thickness of between 3 and 7 mm, and for example of around 5 mm.
  • the sound absorption member 25 comprises a first sound absorption portion 25.1 and a second sound absorption portion 25.2 which each have a generally planar shape and which extend substantially parallel relative to each other, and a third sound absorption portion 25.3 which connects the first and second sound absorption portions 25.1, 25.2 to one another.
  • a configuration of the acoustic absorption member 25 is obtained by folding the acoustic absorption member 25 on itself.
  • the structural support element 24 is arranged between the first and second sound absorption portions 25.1, 25.2, and thus forms a structural support core.
  • the third sound-absorbing portion 25.3 is oriented towards the suction motor 5, so that the air flow must flow through the sound-absorbing member 25 before it can encounter the supporting structural member 24.
  • the sound absorbing wall 23 is configured such that the airflow cannot directly encounter the supporting structural member 24.
  • the air evacuation circuit 18 further comprises an additional acoustic absorption element 26 which is made of porous material and which is located upstream of the filter 19.
  • the additional acoustic absorption element 26 is located between the suction motor 5 and the filter 19.
  • the additional acoustic absorption element 26 can for example be an acoustic foam.
  • the additional sound absorption element 26 has an annular shape and comprises a passage opening 27 which is fluidly connected to the air discharge orifice 15 of the suction motor 5 and which is located opposite the first open end 22.1 of the internal chamber 22 of the filter 19.
  • the additional acoustic absorption element 26 comprises a first axial surface 26.1 which is annular and which is oriented towards the suction motor 5, and a second axial surface 26.2 which is annular and which is oriented towards the filter 19.
  • the support structure 30 can also be provided with an end wall 30.4 located opposite the second closed end 22.2 of the internal chamber 22.
  • the second axial surface 26.2 of the additional acoustic absorption element 26 could be in contact with the first axial end face 19.1 of the filter 19, and the element of additional sound absorption 26 could cover at least partly, and for example entirely, the first axial end face 19.1 of the filter 19.
  • the sound absorption wall 23 extends partly into the passage opening 27.
  • the first end portion 23.1 of the sound absorption wall 23 could be set back from the passage opening 27, and therefore not extend through the passage opening 27.
  • the air exhaust circuit 18 further comprises air exhaust openings 28 provided on an outer surface of the main body 3 and through which the air flow generated by the suction motor 5 is exhausted to the outside of the main body 3.
  • At least one, and for example each, of the air discharge openings 28 is oriented in a direction of orientation which extends substantially perpendicular to the sound absorption wall 23.
  • the main body 3 at least partially delimits a receiving chamber 29 in which the filter 19 and the sound absorption wall 23 are removably received
  • the portable vacuum cleaner 2 comprises a removable cover 31 which is removably fixed to the main body 3 and which is configured to prevent access to the filter 19 and to the sound absorption wall 23 when the removable cover 31 is fixed to the main body 3 and to allow access to the filter 19 and to the wall sound absorption 23 when the removable cover 31 is removed.
  • the removable cover 31 is arranged on a rear face of the main body 3 of the portable vacuum cleaner 2.
  • the motor-driven fan 13 When the motor-driven fan 13 is electrically powered, it establishes a depression in particular in the waste separation and collection device 4 such that air and waste are sucked in through the suction duct 6. The air loaded with waste then enters the waste collection container 8 via the air inlet opening 11 which can for example emerge tangentially into the cyclonic separation chamber 10. The air is thus set in rotation and the waste is centrifuged outwards and this waste is collected by the waste collection container 8.
  • the air flow then flows successively through the air outlet orifice 11, the connecting pipe 16, and the air inlet orifice 14 and the air discharge orifice 15 of the suction motor 5. Then, the air flow flows through the passage opening 27 of the additional acoustic absorption element 26 and the first and second air streams 24.1, 24.2, and then flows through the filtration part 21 before escaping out of the main body 3 through the air discharge openings 28.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
EP22188922.3A 2021-08-17 2022-08-05 Tragbarer staubsauger, der mit einer schallabsorbierenden wand ausgestattet ist Active EP4137021B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2108731A FR3126181B1 (fr) 2021-08-17 2021-08-17 Aspirateur portatif équipé d’une paroi d’absorption acoustique

Publications (3)

Publication Number Publication Date
EP4137021A1 true EP4137021A1 (de) 2023-02-22
EP4137021C0 EP4137021C0 (de) 2024-05-22
EP4137021B1 EP4137021B1 (de) 2024-05-22

Family

ID=77821928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22188922.3A Active EP4137021B1 (de) 2021-08-17 2022-08-05 Tragbarer staubsauger, der mit einer schallabsorbierenden wand ausgestattet ist

Country Status (8)

Country Link
US (1) US20250025004A1 (de)
EP (1) EP4137021B1 (de)
JP (1) JP2024530237A (de)
KR (1) KR20240048008A (de)
CN (1) CN117794429A (de)
ES (1) ES2983198T3 (de)
FR (1) FR3126181B1 (de)
WO (1) WO2023021254A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416678A1 (fr) * 1978-02-09 1979-09-07 Vorwerk Co Interholding Aspirateur a filtre a poussiere monte en amont du ventilateur
JPS5846918A (ja) * 1981-09-16 1983-03-18 松下電器産業株式会社 電気掃除機
FR3092979A1 (fr) * 2019-02-21 2020-08-28 Seb S.A. Aspirateur équipé d’une tubulure de liaison
FR3094622A1 (fr) * 2019-04-05 2020-10-09 Seb S.A. Aspirateur portatif équipé d’un filtre amovible

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416678A1 (fr) * 1978-02-09 1979-09-07 Vorwerk Co Interholding Aspirateur a filtre a poussiere monte en amont du ventilateur
JPS5846918A (ja) * 1981-09-16 1983-03-18 松下電器産業株式会社 電気掃除機
FR3092979A1 (fr) * 2019-02-21 2020-08-28 Seb S.A. Aspirateur équipé d’une tubulure de liaison
FR3094622A1 (fr) * 2019-04-05 2020-10-09 Seb S.A. Aspirateur portatif équipé d’un filtre amovible

Also Published As

Publication number Publication date
US20250025004A1 (en) 2025-01-23
FR3126181A1 (fr) 2023-02-24
EP4137021C0 (de) 2024-05-22
JP2024530237A (ja) 2024-08-16
FR3126181B1 (fr) 2023-08-04
KR20240048008A (ko) 2024-04-12
WO2023021254A1 (fr) 2023-02-23
CN117794429A (zh) 2024-03-29
EP4137021B1 (de) 2024-05-22
ES2983198T3 (es) 2024-10-22

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