EP4385376A1 - Absaugvorrichtung für haushaltsstaubsauger - Google Patents

Absaugvorrichtung für haushaltsstaubsauger Download PDF

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Publication number
EP4385376A1
EP4385376A1 EP23214780.1A EP23214780A EP4385376A1 EP 4385376 A1 EP4385376 A1 EP 4385376A1 EP 23214780 A EP23214780 A EP 23214780A EP 4385376 A1 EP4385376 A1 EP 4385376A1
Authority
EP
European Patent Office
Prior art keywords
air
sound absorption
absorption element
suction device
opening
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
EP23214780.1A
Other languages
English (en)
French (fr)
Other versions
EP4385376B1 (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 EP4385376B1 publication Critical patent/EP4385376B1/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
    • A47L9/22—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 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 air flow generated by the latter flows successively into a first annular volume delimited by the electric motor and the internal envelope, then into a second annular volume delimited by the internal and external envelopes , then into the vertical air exhaust duct and the horizontal air exhaust duct and finally through the air exhaust opening.
  • Such a configuration of the suction device generates significant turbulence downstream of the air outlet opening and therefore the flow of a turbulent air flow through the air exhaust circuit.
  • the noise generated by the air flow circulating through the suction device turns out to be significant, as is the noise generated by the suction motor, which is a source of discomfort for the user.
  • 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 sound absorption element is configured such that, when the electric motor is in operation, at least part of the air flow, exiting the at least one air outlet opening and flowing into the first compartment, passes through the sound absorption element and enters the second compartment.
  • Such a configuration of the sound absorption element generates pressure losses within the suction device, which reduces the flow speed of the air flow within the suction device.
  • the presence of the sound absorption element makes it possible to homogenize the air flow circulating downstream of the suction motor and in particular in the air exhaust circuit.
  • such a reduction in the flow speed of the air flow and the homogenization of the latter make it possible to reduce the turbulence within the suction device, and therefore the noise generated by the aeraulic flow circulating in the device. aspiration.
  • the latter makes it possible to reduce the noise coming from the moving parts of the suction motor, and more particularly 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 air flow flowing 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 absorption element has a general plate shape.
  • the sound absorption element may for example have a generally rectangular shape.
  • the sound absorption element is an acoustic foam.
  • the sound absorption element is made of porous material with open cavities.
  • the sound absorption element is acoustically porous, and is advantageously made of acoustically porous material.
  • the sound 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 sound absorption element being substantially parallel.
  • the sound absorption element is configured such that, when the electric motor is in operation, the at least part of the air flow having passed through the element of sound absorption and penetrated into the second compartment passes through the sound absorption element again and enters the air exhaust duct.
  • the sound absorption element extends radially around the electric motor.
  • the sound absorption element extends substantially perpendicular to the motor axis.
  • the sound absorption element extends to the internal walls of the main casing. Such a configuration of the sound absorption element allows absorption of noise coming from both the fan and the electric motor, and therefore further reduces the noise generated by the suction device.
  • the sound absorption element comprises external edges configured to bear respectively against the internal walls of the main casing.
  • the main casing comprises a first fairing and a second fairing which are fixed to one another and which delimit the internal housing.
  • the sound absorption element has a shape complementary to that of a part of the main casing in which the sound absorption element is arranged, and for example to that of the first fairing or the second fairing.
  • Such a configuration of the sound absorption element makes it possible to further reduce the noise generated by the suction device.
  • the first and second compartments are separated from each other by the sound absorption element.
  • the sound absorption element comprises a motor passage opening into which the electric motor is inserted, and more particularly a motor casing of the electric motor.
  • the sound absorption element comprises an internal circumferential surface which delimits the motor passage opening and which is configured to cooperate with an external circumferential surface of the motor housing of the electric motor.
  • the suction motor comprises an annular bearing surface against which the sound absorption element bears.
  • the air exhaust circuit comprises a separation partition which is configured to separate at least in part the first compartment and the air exhaust duct, the separation partition being rigid and not permeable to air.
  • a separation wall makes it possible to force at least part of the air flow to pass through the sound absorption element before entering the air exhaust duct, and therefore to reduce the noise generated by the suction device according to the present invention without significantly impacting the manufacturing costs of the suction device.
  • the partition wall extends substantially parallel to the engine axis, and for example from a bottom wall of the first compartment.
  • the sound absorption 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 motor. electric.
  • the sound absorption element and the first compartment are configured such that, when the electric motor is in operation, the entire air flow, leaving the at least an air outlet opening and flowing into the first compartment, passes through the sound absorption element before entering the air exhaust duct.
  • Such a configuration of the sound absorption element makes it possible to further reduce the noise generated by the suction device according to the present invention.
  • Such a configuration of the sound absorption element makes it possible, at least in one operating mode of the suction device, to force the air flow to pass completely through the sound absorption element before leaving the suction device. suction.
  • the sound absorption 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 absorption element deforms and presses against the partition wall. The air flow then passes entirely through the sound absorption element before leaving the suction device.
  • the suction device comprises an additional sound absorption element which is made of porous material and which is arranged at least partly in the air exhaust duct.
  • the additional sound absorption element is an acoustic foam.
  • the additional sound absorption element extends substantially parallel to the motor axis.
  • the additional sound absorption element is arranged under the sound absorption element.
  • the additional sound absorption element comprises an upper edge extending close to, and for example in contact with, the sound absorption element.
  • the air exhaust duct comprises an air stream delimited in part by the additional sound absorption element.
  • the air stream is delimited at least in part by the separation wall and the additional sound absorption element.
  • the main casing and the sound absorption element delimit the second compartment.
  • the main casing, the sound absorption element and the partition wall delimit the first compartment.
  • the additional sound absorption element is placed opposite the partition wall.
  • the additional sound absorption element comprises a first surface oriented towards the partition wall and a second surface which is opposite the respective first surface.
  • the air stream is delimited in part by the partition wall and the first surface of the additional sound absorption element.
  • the air stream extends substantially parallel to the motor axis.
  • the air exhaust circuit comprises flow guide fins which extend from the partition wall and which are arranged in the air exhaust duct.
  • the additional sound absorption element rests against the flow guide fins.
  • the flow guide fins are configured to immobilize the additional sound absorption element.
  • the main casing comprises an air intake part provided with at least one air intake opening.
  • the suction device further comprises an upstream sound absorption element fixed to the main casing and arranged upstream of the air intake part, the sound absorption element upstream being made of porous material and covering at least partly the at least one air intake opening.
  • the presence of the upstream sound absorption element limits turbulence upstream of the air inlet opening and homogenizes the air flow circulating around the periphery of the air inlet opening and in the direction of inside the suction motor.
  • the noise generated by the air flow circulating upstream of the suction motor is thus reduced by the elimination of this turbulence.
  • the air flow, passing through the sound absorption element then the air passage openings provided on the air intake part is made uniform at the entrance to the fan blades fitted to the motor. suction. This makes it possible to reduce 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 sound absorption element comprises a first face oriented towards the at least one air intake opening and a second face opposite the first face, the element d upstream sound absorption comprising at least one through orifice which opens respectively into the first and second faces of the upstream sound absorption element and which is located opposite the at least one air intake opening.
  • the presence of the at least one through orifice makes it possible to avoid any blockage of the air flow through the upstream sound absorption element in the event of clogging of the latter.
  • the air inlet opening is located opposite the at least one air intake opening.
  • the air intake part comprises several air intake openings.
  • the first face of the upstream sound absorption element bears against the air intake part.
  • the upstream sound absorption element is an acoustic foam.
  • the at least one through orifice is located at least partly opposite the air inlet opening.
  • the main casing comprises a receiving housing in which the sound absorption element is housed.
  • the air evacuation circuit further comprises a filtration element configured to filter the air flow flowing through the 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 tip is arranged in a front part of the housing.
  • the suction motor is configured to generate an air flow through the suction nozzle and the air inlet opening.
  • the domestic vacuum cleaner comprises a waste separation and collection device located upstream of the suction motor and configured to retain waste transported by the air flow generated by the motor. aspiration.
  • 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 comprises a connecting conduit configured to fluidly connect an air outlet of the waste separation and collection device to the at least one air intake opening provided on the main casing.
  • the at least one opening The air exhaust is oriented towards the waste separation and collection device.
  • the sound absorption element is configured to extend substantially horizontally when the housing rests, for example by its wheels, on a horizontal surface.
  • the motor axis is configured to extend substantially vertically when the housing rests, for example by its wheels, on a horizontal surface.
  • upstream and downstream are defined in relation to the direction of flow of the air flow 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 a vacuum cleaner body, comprising 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 on 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 manner, 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 pipe, 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 pipe, 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 delimited externally by a side wall of the waste collection container 7.
  • the domestic vacuum cleaner 2 further comprises a suction device 9 which is housed in a motor compartment 11 delimited by the housing 3 and which is located downstream of the waste separation and collection device 6.
  • the suction device 9 comprises a main casing 12 delimiting an internal housing 13.
  • the main casing 12 comprises a first fairing 12.1 and a second fairing 12.2 assembled to one another by for example by screwing or clicking.
  • the main casing 12 comprises an air intake part 14, such as an air intake grille, fixed to the second fairing 12.2 and provided with several air intake openings 15.
  • Each intake opening air 15 can for example have a diameter of between 1 mm and 3 mm.
  • the air intake part 14 is planar and has a circular shape.
  • the air intake part 14 can for example be formed by a perforated plate attached to the second fairing 12.2.
  • the domestic vacuum cleaner 2 comprises 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 comprises a suction motor 17, also called a motor fan, which is arranged in the internal housing 13 of the main casing 12 and which comprises an air inlet opening 18 fluidly connected to the suction nozzle 4 and located opposite at least part of the air intake openings 15 provided on the air intake portion 14.
  • a suction motor 17 also called a motor fan
  • the air intake portion 14 and the air inlet opening 18 are arranged coaxially.
  • the suction motor 17 is configured to generate a flow of air through the suction nozzle 4, the waste separation and collection device 6, the connecting conduit 16, the inlet openings of air 15 and the air inlet opening 18.
  • the suction motor 17 comprises a fan 19 and an electric motor 21 configured to rotate the fan 19.
  • the fan 19 may include a fan cover 22 at least partially covering the propeller of the fan 19 and defining the air inlet opening 18.
  • the suction motor 17 also comprises at least one air outlet opening 23 opening into the internal housing 13 and through which the air flow is intended to leave the suction motor 17 and can flow into the housing internal 13.
  • the or each air outlet opening 23 can for example be provided in a lower part of the motor casing 24 of the suction motor 17.
  • the suction motor 17 has a motor axis A which extends substantially vertically when the housing 3 rests, by its wheels 5, on a horizontal surface.
  • the suction device 9 further comprises a sound absorption element 25 which is arranged in the internal housing 13 and which is made of porous material, and for example of porous material with open cavities.
  • the pores, also called cavities or cells, of the sound absorption element 25 are filled with air and function by dissipating the acoustic energy of the incident acoustic waves into heat in the structure of the porous material .
  • the sound absorption element 25 is an acoustic foam, such as a cellular polyurethane foam and in particular an open-cell polyurethane foam.
  • the sound absorption element 25 can for example have a net density of between 26 and 30 kg/m 3 (measured according to the ISO 845 standard), a compressive strength at 40% depression 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 approximately 200 kPa, including elongation at break between 320 and 370% (measured according to the ISO 1798 standard), and for example approximately 350%, and a cell diameter of between 440 and 450 ⁇ m (measured according to the Recticel/T.013.4 method).
  • the sound absorption 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 arranged and a second compartment 27 in which the fan 19.
  • the or each air outlet opening 23 opens more particularly into the first compartment 26.
  • the sound absorption element 25 has the general shape of a plate, and has a generally rectangular shape.
  • the sound absorption 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 absorption 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 absorption element 25 are substantially parallel.
  • the suction motor 17 comprises an annular bearing surface 28 against which the sound absorption element 25 bears.
  • the sound absorption element 25 comprises a motor passage opening 29 in which the electric motor 21 is inserted, and more particularly the motor casing 24 of the electric motor 21.
  • the sound absorption element 25 comprises an internal circumferential surface which delimits the engine passage opening 29 and which is configured to cooperate with an external circumferential surface of the motor casing 24.
  • the internal circumferential surface has a shape complementary to that of the circumferential surface external of the motor housing 24.
  • the sound absorption element 25 extends to the internal walls of the main casing 12, and has a shape complementary to that of a part of the main casing 12 in which the sound absorption element 25 is arranged, and for example to that of the first fairing 12.1 or the second fairing 12.2.
  • the sound absorption element 25 has external edges configured to bear respectively against the internal walls of the main casing 12.
  • the first and second compartments 26, 27 are separated from each other by the sound absorption element 25.
  • the suction device 9 also comprises an air evacuation circuit 31 comprising an air evacuation opening 32 (see Figure 6 ) opening into an external surface of the main casing 12 and through which the air flow generated by the suction motor 17 is evacuated towards the outside of the suction device 9.
  • the air exhaust opening 32 is oriented towards the waste separation and collection device 6.
  • the air exhaust circuit 31 further comprises an air exhaust duct 33 which fluidly connects the internal housing 13, and therefore the air outlet opening(s) 23, to the exhaust opening of air 32.
  • the sound absorption element 25 is configured such that, when the electric motor 21 is in operation, at least part of the air flow, leaving the air outlet opening(s) 23 and flowing into the first compartment 26, passes through the sound absorption element 25 and enters the second compartment 27, then passes through the sound absorption element 25 again and enters the air exhaust duct 33.
  • the air exhaust circuit 31 further comprises a partition wall 34 which is configured to separate the first compartment 26 and the air exhaust duct 33.
  • the partition wall 34 is rigid and not permeable to air. air.
  • the partition wall 34 extends substantially parallel to the motor axis A, and for example from a bottom wall of the first compartment 26.
  • the sound absorption 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 absorption element 25 could be constantly resting against the upper edge of the partition wall 34, and the sound absorption element 25 and the first compartment 26 could be configured such that, when the electric motor 21 is in operation, the entire air flow, leaving the air outlet openings 23 and flowing into the first compartment 26, passes through the absorption element acoustic 25 before entering the air exhaust duct 33.
  • the suction device 9 comprises an additional sound absorption element 36 which is made of porous material and which is arranged in the air exhaust duct 33.
  • the additional sound absorption element 36 is an acoustic foam, such as a cellular polyurethane foam and in particular an open cell polyurethane foam.
  • the additional sound absorption element 36 extends substantially parallel to the motor axis A, and is located opposite the partition wall 34.
  • the additional sound absorption element 36 comprises a first surface oriented towards the partition wall 34 and a second surface which is opposite the respective first surface.
  • the first and second surfaces of the additional sound absorption element 36 are substantially parallel.
  • the additional sound absorption element 36 extends under the sound absorption element 25.
  • the additional sound absorption element 36 may for example include an upper edge which is extending close to, and for example in contact with, the sound absorption element 25.
  • the air exhaust duct 33 comprises more particularly an air stream 37 which extends substantially parallel to the motor axis A and which is delimited in part by the additional sound absorption element 36 and the partition separation 34.
  • the air exhaust circuit 31 comprises flow guide fins 38 which extend from the partition wall 34 and which are arranged in the air exhaust duct 33. So advantageously, 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 comprises a filtration element 39 configured to filter the air flow flowing through the exhaust opening air 32.
  • the filtration element 39 can 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 comprises an upstream sound absorption element 41 fixed to the main casing 12 and arranged upstream of the air intake part 14.
  • the upstream sound absorption element 41 is made of porous material, and for example in porous material with open cavities.
  • the upstream sound absorption 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 comprises a retaining wall 42 extending from an exterior surface of the second fairing 12.2 and extending around the part of air intake 14 and the upstream sound absorption element 41.
  • the air intake part 14 and the retaining wall 42 delimit at least in part a receiving housing 43 in which the element d is housed upstream sound absorption 41.
  • the upstream sound absorption element 41 extends perpendicular to the motor axis A, and is configured to extend horizontally when the housing 3 rests, for example by its wheels 5, on a horizontal surface.
  • the upstream sound absorption element 41 can for example be generally parallelepiped, and have a generally rectangular shape.
  • the upstream sound absorption element 41 comprises a first face 41.1 oriented towards the air intake 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 absorption element 41 are substantially parallel, and the first face 41.1 of the upstream sound absorption element 41 bears against the intake part d air 14 such that the upstream sound absorption element 41 covers several air intake openings 15.
  • the suction device 9 is configured such that at least part of the air flow, generated by the suction motor 17, flows through the upstream sound absorption element 41 and towards the air intake openings 15.
  • the upstream sound absorption element 41 comprises a through orifice 44 which opens respectively into the first and second faces 41.1, 41.2 of the upstream sound absorption element 41 and which is located facing at least part of the air intake openings 15.
  • the through orifice 44 is of cylindrical shape and of circular section.
  • the through hole 44 and the air inlet opening 18 are arranged coaxially.

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

Publications (2)

Publication Number Publication Date
EP4385376A1 true EP4385376A1 (de) 2024-06-19
EP4385376B1 EP4385376B1 (de) 2026-01-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP23214780.1A Active EP4385376B1 (de) 2022-12-16 2023-12-06 Absaugvorrichtung für haushaltsstaubsauger

Country Status (3)

Country Link
EP (1) EP4385376B1 (de)
CN (1) CN221285605U (de)
FR (1) FR3143310B1 (de)

Citations (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
EP1723883A2 (de) * 2005-05-20 2006-11-22 Samsung Gwangju Electronics Co., Ltd. Luftauslassvorrichtung für eine Motoranordnung und Staubsauger mit derselben
CN104997463A (zh) 2014-04-23 2015-10-28 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

Patent Citations (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
EP1723883A2 (de) * 2005-05-20 2006-11-22 Samsung Gwangju Electronics Co., Ltd. Luftauslassvorrichtung für eine Motoranordnung und Staubsauger mit derselben
CN104997463A (zh) 2014-04-23 2015-10-28 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

Also Published As

Publication number Publication date
FR3143310A1 (fr) 2024-06-21
EP4385376B1 (de) 2026-01-28
CN221285605U (zh) 2024-07-09
FR3143310B1 (fr) 2025-03-14

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