EP3626146A1 - Ansaugvorrichtung für haushaltssauger - Google Patents

Ansaugvorrichtung für haushaltssauger Download PDF

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Publication number
EP3626146A1
EP3626146A1 EP19190389.7A EP19190389A EP3626146A1 EP 3626146 A1 EP3626146 A1 EP 3626146A1 EP 19190389 A EP19190389 A EP 19190389A EP 3626146 A1 EP3626146 A1 EP 3626146A1
Authority
EP
European Patent Office
Prior art keywords
suction
motor
suction motor
annular
suction device
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
EP19190389.7A
Other languages
English (en)
French (fr)
Other versions
EP3626146B1 (de
Inventor
Fabien David
Romain COLLET
Patrick Morin
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
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Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP3626146A1 publication Critical patent/EP3626146A1/de
Application granted granted Critical
Publication of EP3626146B1 publication Critical patent/EP3626146B1/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
    • 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
    • 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
    • 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 household vacuum cleaners for vacuuming dust and waste of small particle size present on a surface to be cleaned, which can for example be tiling, parquet, laminate, carpet or carpet.
  • the high weight of the suction motor causes compression of the damping elements arranged under the suction motor and a stretching of the damping elements arranged above the suction motor. Consequently, the high weight of the suction motor generates an off-center of the suction motor and thus an axial asymmetry of the stresses applied at the level of the air sealing element and at the suspension system, which affects the decoupling of the suction motor from the motor housing of the vacuum cleaner. Therefore, the noise generated by such a domestic vacuum cleaner is likely to increase significantly over time.
  • the present invention aims to remedy all or part of these drawbacks.
  • the objective of the invention consists in particular in providing a suction device which ensures optimal decoupling of the suction motor relative to the housing of the vacuum cleaner, while limiting the manufacturing costs of the suction device.
  • the damping elements make it possible to use very flexible damping elements and therefore to limit the transfer of vibrations generated by the suction motor to the vacuum cleaner housing, and thus ensure improved decoupling of the suction motor from the vacuum cleaner housing.
  • the S-shape of the damping elements provides great flexibility to the latter mainly in a radial direction and in a tangential direction relative to the longitudinal axis of the suction motor, which greatly limits the transfer vibrations generated by the vacuum motor at the domestic vacuum cleaner housing.
  • the presence of the compensating spring makes it possible to keep the suction motor "levitated” so that the damping elements can all work in substantially the same conditions and therefore ensure optimal decoupling of the suction motor by compared to the vacuum cleaner housing.
  • the presence of the compensating spring makes it possible to use damping elements having great flexibility without this detracting from the decoupling of the suction motor with respect to the vacuum cleaner housing.
  • the suction device according to the present invention ensures optimum decoupling of the suction motor from the housing of the vacuum cleaner, while limiting the manufacturing costs of the suction device.
  • the suction device can also have one or more of the following characteristics, taken alone or in combination.
  • the compensation spring has a stiffness adapted so that the mass / spring system thus produced has a natural frequency as low as possible and preferably less than 10 Hz.
  • the stiffness of the spring can be chosen so that the natural frequency of the mass / spring system is of the order of 5 Hz.
  • the damping elements are regularly distributed around the suction motor.
  • the suspension system further comprises a support piece supporting the suction motor, the damping elements being interposed between the support piece and the motor casing, and for example between the support part and a rear fairing of the motor casing.
  • the support part defines a housing in which the suction motor is mounted.
  • the support part comprises an annular support part extending around the suction motor.
  • the support part further comprises a rear part extending to the rear of the suction motor and connecting branches connecting the annular support part to the rear part.
  • the connecting branches extend substantially parallel to a longitudinal axis of the suction motor.
  • each damping element comprises a first fixing part fixed to the motor housing, and for example to the rear fairing of the motor housing, a second fixing part fixed to the support part, and for example to the annular support part, and a damping part connecting the first and second fixing parts, the damping part having an S-shaped cross section.
  • the first and second fixing parts of each damping element are respectively fixed to the motor housing and to the support part by complementarity of shape.
  • the damping elements are substantially aligned circumferentially.
  • each damping element extends substantially tangentially to the suction motor.
  • the damping elements generally extend in an extension plane which is transverse, and of preferably substantially perpendicular to a longitudinal axis of the suction motor.
  • each damping element is elongated and is understood in a direction of extension.
  • each damping element is flexible.
  • each damping element is elastically deformable.
  • each damping element is made of elastically deformable material, and can for example be made of elastomer.
  • the compensation spring is interposed between the support part and the motor housing.
  • the compensation spring comprises a first end portion fixed to the engine casing, and for example to the rear fairing, and a second end portion fixed to the support piece, and by example to the annular support part.
  • the compensation spring extends generally vertically.
  • the compensation spring is located above the suction motor, and is formed for example by a tension spring.
  • the air sealing element is annular and flexible.
  • the a somehowlic sealing element is in one piece.
  • the second annular sealing portion is configured to be pressed and held in sealing manner against the suction motor when the suction motor is supplied and generates the suction flow .
  • the result of the forces applying to the second annular sealing portion is such that the second annular sealing portion is pressed and held in sealing manner against the motor suction.
  • the air sealing element is configured to guide the suction flow from a passage opening provided on the motor housing and to an air inlet opening provided on the suction motor.
  • the second annular sealing portion comprises an annular sealing lip which extends around the air inlet opening from an annular sealing rib configured to cooperate with sealingly with the suction motor, the annular sealing lip having support ribs which extend under the annular sealing lip.
  • the support ribs are configured to bear against the suction motor in order to locally raise the annular sealing lip and allow the vacuum generated by the suction flow to be applied under the suction lip.
  • the annular sealing lip comprises an annular sealing rib configured to cooperate in sealed manner with the suction motor.
  • the second sealing portion annular has an outer diameter less than an outer diameter of the first annular sealing portion.
  • the a Vogellic sealing element further comprises an annular intermediate portion situated between the first and second annular sealing portions, the annular intermediate portion comprising a first tubular portion extending from of the first annular sealing portion and in the direction of the suction motor, and a second tubular portion extending from the second annular sealing portion and opposite the suction motor, the first and second tubular portions being substantially concentric and being axially offset from one another.
  • the annular intermediate portion further comprises at least one radial ply oriented substantially radially with respect to the central axis of the air sealing element, and at least one annular ply substantially concentric with the central axis of the air sealing element.
  • the at least one annular fold makes it possible to increase the flexibility of the air sealing element in one direction radial and therefore significantly reduce the transfer to the vacuum cleaner housing of the vibrations generated by the unbalance of the suction motor.
  • the first annular sealing portion is molded onto a front fairing of the engine casing.
  • the first annular sealing portion is further configured to cooperate in sealed manner with a housing of the vacuum cleaner.
  • the suction motor comprises a fan and an electric motor configured to drive the fan in rotation.
  • the present invention further relates to a household vacuum cleaner comprising a suction device according to any one of the preceding characteristics.
  • the domestic vacuum cleaner comprises a housing comprising a filtration compartment and a motor compartment separated by a partition wall, the suction device being housed in the motor compartment.
  • the a Vogellic sealing element is configured to guide the suction flow generated by the suction motor from a communication orifice provided on the partition wall up to the air inlet opening.
  • the Figures 1 to 10 represent a domestic vacuum cleaner 2 comprising in particular a housing 3, also a vacuum cleaner body, in a known manner comprising a filtration compartment 4 and a motor compartment 5 separated by a partition wall 6 provided with a communication orifice 7.
  • the compartment filtration 4 is intended to receive a filtration device (not shown in the figures), such as a filtration bag or a cyclonic separation device, making it possible to retain waste sucked into the housing 3.
  • the housing 3 also comprises an air inlet 8 by which air transporting waste is sucked into the housing 3, and an air outlet 9 by which the air previously removed from the waste by the filtration device is evacuated outside the housing 3.
  • the housing 3 is advantageously fitted with wheels 11 to move the domestic vacuum cleaner 2.
  • the domestic vacuum cleaner 2 may also include a flexible hose (not shown in the figures) connected, preferably removably, to the air inlet 8 of the housing 3, 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) connected, preferably removably, to the air inlet 8 of the housing 3, 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.
  • the domestic vacuum cleaner 2 further comprises a suction device 12 housed in the engine compartment 5.
  • the suction device 12 comprises a motor housing 13.
  • the motor housing 13 comprises a front fairing 13.1 and a rear fairing 13.2 assembled to one another for example by screwing or snap-fastening, and a passage opening 14 formed on the front fairing 13.1.
  • the suction device 12 further comprises a suction motor 15, also called a motor-fan, disposed in the motor housing 13 and configured to generate a suction flow.
  • the suction motor 15 comprises a fan and an electric motor configured to drive the fan in rotation.
  • the suction motor 15 may further comprise a fan cover 16 at least partially covering the fan and defining an air inlet opening 17.
  • the suction device 12 also comprises an aeraulic sealing element 18 which is in one piece and which is configured to guide the suction flow from the passage opening 14 to the air inlet opening 17.
  • the air sealing element 18 is annular and flexible, and comprises a first annular sealing portion 19 configured to cooperate in leaktight manner with the motor housing 13, a second annular sealing portion 21 configured to cooperate in a manner sealed with the suction motor 15, and an annular intermediate portion 22 located between the first and second annular sealing portions 19, 21.
  • the first and second annular sealing portions 19, 21 are axially offset l 'one over the other.
  • the first annular sealing portion 19 extends around the periphery of the passage opening 14 and is molded onto the front fairing 13.1 of the motor housing 13.
  • the first annular sealing portion 19 extends over a front face of the front fairing 13.1 which is located opposite the suction motor 15.
  • the front fairing 13.1 comprises a retaining part 23 on which the first annular sealing portion 19 is overmolded.
  • the retaining part 23 advantageously comprises an annular retaining ring 24 which defines the passage opening 14 and which is connected to a main body 25 of the front fairing 13.1 by connecting lugs 26.
  • the connecting lugs 26 extend radially and are angularly spaced from one another so as to form, with the annular retaining ring 24 and the main body 25 of the front fairing 13.1, through holes 27 which are angularly offset from one another and which are distributed around the passage opening 14.
  • the through holes 27 extend in an arc of a circle and are aligned circumferentially.
  • the first annular sealing portion 19 comprises an annular sealing protrusion 28 extending around the passage opening 14 and projecting opposite the suction motor 15.
  • the annular sealing protrusion 28 is configured to extend around the communication orifice 7 and to cooperate in leaktight manner with the partition wall 6.
  • the annular sealing protuberance 28 covers the through orifices 27.
  • the annular sealing protrusion 28 includes an annular wall 29 which is thin and which is curved.
  • the annular wall 29 has a first curved annular surface 29.1 which is concave and oriented towards the suction motor 15 and a second curved annular surface 29.2 which is convex and oriented opposite the suction motor 15, that is to say i.e. towards the partition wall 6.
  • the annular sealing protrusion 28 further comprises a plurality of connecting walls 31 which are angularly offset from one another and which are distributed around the passage opening 14.
  • Each connecting wall 31 extends from the first curved annular surface 29.1 and facing a respective connecting tab 26, and is fixed by overmolding to the latter.
  • each connecting wall 31 advantageously extends radially.
  • the second annular sealing portion 21 extends around the air inlet opening 17 and has an outside diameter smaller than an outside diameter of the first annular sealing portion 19.
  • the second annular sealing portion 21 more particularly comprises an annular sealing lip 32 which extends transversely with respect to the central axis A of the air sealing element 18 and which is configured to cooperate in leaktight manner with the suction motor 15, and more particularly with the fan cover 16.
  • the annular sealing lip 32 is configured to bear against the suction motor 15 when the suction motor 15 is stopped, and to be pressed and held in sealing contact against the suction motor 15 when the suction motor 15 is powered and generates the suction flow.
  • the result of the forces applied to the annular sealing lip 32 is such that the annular sealing lip 32 is pressed and kept in sealed contact against the suction motor 15.
  • the annular sealing lip 32 comprises an annular sealing rib 33 configured to cooperate in leaktight manner with the suction motor 15.
  • the annular sealing rib 33 is advantageously provided at level of an external peripheral edge of the annular sealing lip 32, and extends substantially parallel to the central axis A of the air sealing element 18.
  • the second annular sealing portion 21 further comprises support ribs 34 extending from the annular sealing lip 32 and configured to bear against the suction motor 15, and for example against an external surface of the fan cover 16.
  • the support ribs 34 extend around the air inlet opening 17 and extend radially relative to the central axis A of the air sealing element 18.
  • the ribs of support 34 are more particularly configured to distribute the pressure forces applied to the annular sealing lip 32 when the suction motor 15 is supplied and generates the suction flow.
  • the support ribs 34 extend on the one hand to the annular sealing rib 33 and on the other hand to an internal peripheral edge of the lip of annular seal 32.
  • the annular intermediate portion 22 of the air sealing element 18 comprises a first tubular portion 35 extending from the first annular sealing portion 19 and in the direction of the suction motor 15, and a second tubular portion 36 extending from the second annular sealing portion 21 and opposite the suction motor 15.
  • the first and second tubular portions 35, 36 are concentric with the central axis A of the element air tightness 18 and are offset axially with respect to each other.
  • the second tubular portion 36 is located radially inside the first tubular portion 35, and the first and second tubular portions 35, 36 partially overlap in an axial direction.
  • the annular intermediate portion 22 further comprises an annular connection portion 37 located between the first and second tubular portions 35, 36 and connecting the first and second tubular portions 35, 36 to each other so as to define two annular folds 38, 39 concentric with the central axis A of the air sealing element 18.
  • the two annular folds 38, 39 are advantageously oriented in two opposite directions, so that the annular intermediate portion 22 has a longitudinal section broadly Z-shaped.
  • the annular intermediate portion 22 also comprises a plurality of radial folds 41 which are oriented substantially radially with respect to the central axis A of the air sealing element 18, and which s' advantageously each extend generally in a plane oriented radially with respect to the central axis A.
  • the radial folds 41 are angularly offset from one another and are advantageously regularly distributed around the central axis A.
  • Each radial ply 41 advantageously comprises a concave surface 41.1 oriented towards the outside of the aeraulic sealing element 18 and a convex surface 41.2 oriented towards the inside of the aeraulic sealing element 18.
  • each radial fold 41 is advantageously formed partially on the second tubular portion 36 and partially on the annular connection portion 37.
  • the suction device 12 further comprises (see in particular the Figures 9 and 10 ) a suspension system 43 configured to support the suction motor 15.
  • the suspension system 43 more particularly comprises a support piece 44 fixed to the suction motor 15, and a plurality of damping elements 45 interposed between the support piece 44 and the motor housing 13 and distributed around the suction motor 15.
  • the support piece 44 can for example comprise an annular support part 44.1 extending around the suction motor 15, a rear part 44.2 extending behind the suction motor 15 and connecting branches 44.3 s extending longitudinally and connecting the annular support part 44.1 to the rear part 44.2.
  • the support piece 44 can thus define a housing in which the suction motor 15 is mounted.
  • each damping element 45 has a generally S-shaped cross section, and comprises a first fixing part 45.1 fixed to the motor housing 13, for example to the rear fairing 13.2, and a second fixing part 45.2 fixed to the support piece 44.
  • the suspension system 43 may for example comprise four damping elements 45 regularly distributed around the suction motor 15.
  • the suspension system 43 further comprises a compensation spring 46 configured to compensate for the weight of the suction motor 15.
  • the compensation spring 46 may for example be located above the motor 15 and be formed by a tension spring. According to an alternative embodiment, the compensation spring 46 could be located below the suction motor 15 and be formed by a compression spring.
  • the compensation spring 46 is more particularly interposed between the support piece 44 and the motor housing 13.
  • the compensation spring 46 advantageously comprises a first end portion 46.1 fixed to the motor housing 13, for example to the rear fairing 13.2, and a second end portion 46.2 fixed to the support piece 44.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Food-Manufacturing Devices (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Motor Or Generator Frames (AREA)
EP19190389.7A 2018-09-24 2019-08-06 Ansaugvorrichtung für haushaltssauger Active EP3626146B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1858671A FR3086154B1 (fr) 2018-09-24 2018-09-24 Dispositif d’aspiration pour aspirateur domestique

Publications (2)

Publication Number Publication Date
EP3626146A1 true EP3626146A1 (de) 2020-03-25
EP3626146B1 EP3626146B1 (de) 2021-04-28

Family

ID=65243815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19190389.7A Active EP3626146B1 (de) 2018-09-24 2019-08-06 Ansaugvorrichtung für haushaltssauger

Country Status (4)

Country Link
EP (1) EP3626146B1 (de)
CN (2) CN211511639U (de)
ES (1) ES2875385T3 (de)
FR (1) FR3086154B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3086154B1 (fr) * 2018-09-24 2020-08-28 Seb Sa Dispositif d’aspiration pour aspirateur domestique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482124A (en) * 1977-10-07 1984-11-13 General Electric Company Torsional vibration isolating motor mounting arrangement and method of making the same
WO2001057992A1 (de) * 2000-02-03 2001-08-09 Robert Bosch Gmbh Bügelfeder
EP2213216A1 (de) * 2007-11-28 2010-08-04 Kabushiki Kaisha Toshiba Elektrischer reiniger
EP2227998A1 (de) * 2007-11-22 2010-09-15 Kabushiki Kaisha Toshiba Elektrischer reiniger
WO2010106471A1 (en) * 2009-03-17 2010-09-23 Koninklijke Philips Electronics N.V. Vacuum cleaner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4538043B2 (ja) * 2007-11-28 2010-09-08 株式会社東芝 電気掃除機
CN102755136B (zh) * 2011-04-28 2017-02-15 南京乐金熊猫电器有限公司 吸尘器电机盒的减振降噪结构
CN105054866B (zh) * 2015-08-20 2018-01-16 莱克电气股份有限公司 悬浮式降噪电机
CN105054868B (zh) * 2015-08-20 2017-10-17 莱克电气股份有限公司 一种电机的全方位减震降噪装置
FR3086154B1 (fr) * 2018-09-24 2020-08-28 Seb Sa Dispositif d’aspiration pour aspirateur domestique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482124A (en) * 1977-10-07 1984-11-13 General Electric Company Torsional vibration isolating motor mounting arrangement and method of making the same
WO2001057992A1 (de) * 2000-02-03 2001-08-09 Robert Bosch Gmbh Bügelfeder
EP2227998A1 (de) * 2007-11-22 2010-09-15 Kabushiki Kaisha Toshiba Elektrischer reiniger
EP2213216A1 (de) * 2007-11-28 2010-08-04 Kabushiki Kaisha Toshiba Elektrischer reiniger
WO2010106471A1 (en) * 2009-03-17 2010-09-23 Koninklijke Philips Electronics N.V. Vacuum cleaner

Also Published As

Publication number Publication date
EP3626146B1 (de) 2021-04-28
FR3086154B1 (fr) 2020-08-28
CN110934540A (zh) 2020-03-31
CN110934540B (zh) 2023-03-14
ES2875385T3 (es) 2021-11-10
FR3086154A1 (fr) 2020-03-27
CN211511639U (zh) 2020-09-18

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