EP3626146B1 - Dispositif d'aspiration pour aspirateur domestique - Google Patents

Dispositif d'aspiration pour aspirateur domestique Download PDF

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Publication number
EP3626146B1
EP3626146B1 EP19190389.7A EP19190389A EP3626146B1 EP 3626146 B1 EP3626146 B1 EP 3626146B1 EP 19190389 A EP19190389 A EP 19190389A EP 3626146 B1 EP3626146 B1 EP 3626146B1
Authority
EP
European Patent Office
Prior art keywords
suction
motor
suction motor
annular sealing
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.)
Active
Application number
EP19190389.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3626146A1 (fr
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/fr
Application granted granted Critical
Publication of EP3626146B1 publication Critical patent/EP3626146B1/fr
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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
    • 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
    • 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 making it possible to suck up dust and waste of small particle size present on a surface to be cleaned, which may for example be tiles, parquet, laminate, carpet or a carpet.
  • the heavy weight of the suction motor causes compression of the damping elements arranged under the suction motor and a stretching of the damping elements disposed above the suction motor. Consequently, the significant weight of the suction motor generates an off-centering of the suction motor and thus an axial asymmetry of the stresses applied at the level of the aeraulic sealing element and at the suspension system, which impairs the decoupling of the vacuum motor from the vacuum motor housing. Therefore, the noise generated by such a household vacuum cleaner is likely to increase significantly over time.
  • EP 2 213 216 A1 describes a vacuum cleaner comprising a suction unit supported radially in a housing by three springs.
  • WO 2010/106 471 A1 describes a vacuum cleaner comprising a suction unit which is axially supported by three springs.
  • EP 2 227 998 A1 describes a vacuum cleaner comprising a suction unit supported radially in a housing by four springs.
  • WO 01/57 992 describes a resilient attachment clip for attaching a component in an engine case.
  • 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 optimum decoupling of the suction motor from the housing of the vacuum cleaner, while limiting the manufacturing costs of the suction device.
  • damping elements make it possible to use very flexible damping elements and therefore to limit the transfer of the vibrations generated by the suction motor to the vacuum cleaner housing, and thus to ensure improved decoupling of the vacuum cleaner. vacuum motor relative to the vacuum cleaner housing.
  • the S-shape of the damping elements ensures great flexibility to the latter mainly in a radial direction and in a tangential direction with respect to the longitudinal axis of the suction motor, which makes it possible to greatly limit the transfer. vibrations generated by the vacuum motor to the housing of the household vacuum cleaner.
  • the presence of the compensation spring makes it possible to keep the suction motor in "levitation” so that the damping elements can all work in substantially the same conditions and therefore ensure optimum decoupling of the suction motor by compared to the vacuum cleaner housing.
  • the presence of the compensation spring makes it possible to use damping elements exhibiting great flexibility without this prejudicing the decoupling of the suction motor from the housing of the vacuum cleaner.
  • 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 may further 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 may be chosen such 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 part supporting the suction motor, the damping elements being interposed between the support part and the engine casing, and for example between the support piece and a rear fairing of the engine case.
  • 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 engine casing, and for example to the rear fairing of the engine casing, 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 a section transverse S-shaped.
  • the first and second fixing parts of each damping element are respectively fixed to the engine casing 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 extend generally in an extension plane which is transverse, and 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 from an elastically deformable material, and may for example be made from an elastomer.
  • the compensation spring is interposed between the support part and the engine casing.
  • 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 part, and by example to the ring 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 a Vogellic 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 against and held in sealed manner against the suction motor when the suction motor is supplied and generates the suction flow. .
  • the resultant of the forces applied to the second annular sealing portion is such that the second annular sealing portion is pressed and held in sealed manner against the suction motor.
  • the a Vogellic sealing element is configured to guide the suction flow from a passage opening provided on the engine casing and up to an air inlet opening provided. on the vacuum 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 each other. sealed manner with the suction motor, the annular sealing lip comprising bearing ribs which extend under the annular sealing lip.
  • the support ribs are configured to bear against the suction motor in order to raise locally the annular sealing lip and allow the vacuum generated by the suction flow to apply under the annular sealing lip up to the edge of the annular sealing rib when the suction motor is powered and generates the suction flow. They therefore make it possible to improve the mechanical strength of the annular sealing rib and thus the sealing between the a Vogellic sealing element and the suction motor under conditions of use of the suction device.
  • the annular sealing lip comprises an annular sealing rib configured to cooperate in a sealed manner with the suction motor.
  • the second annular sealing portion has an outside diameter less than an outside diameter of the first annular sealing portion.
  • the a Vogellic sealing element further comprises an annular intermediate portion located between the first and second annular sealing portions, the annular intermediate portion comprising a first tubular portion extending from from the first annular sealing portion and towards the suction motor, and a second tubular portion extending from the second annular sealing portion and away from the suction motor, the first and second tubular portions being substantially concentric and being axially offset with respect to one another.
  • the annular intermediate portion further comprises at least one radial fold oriented substantially radially with respect to the central axis of the aunterlic sealing element, and at least one annular fold substantially concentric with the central axis of the aeraulic sealing element.
  • the at least one radial fold makes it possible to increase the flexibility of the aeraulic sealing element in a tangential direction and therefore to significantly reduce the transfer, to the vacuum cleaner housing, of the vibrations generated by the electromagnetic forces generated by the operation of the suction motor and the interactions between the rotor and the stator of the suction motor, while the at least one annular fold makes it possible to increase the flexibility of the aeraulic sealing element in a radial direction and therefore to significantly reduce the transfer, to the vacuum cleaner housing, of the vibrations generated by the unbalance of the vacuum 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 a 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 domestic 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 an engine compartment separated by a partition wall, the suction device being housed in the engine 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 to the air inlet opening.
  • the figures 1 to 10 show a domestic vacuum cleaner 2 comprising in particular a housing 3, also vacuum cleaner body, comprising in known manner a filtration compartment 4 and an engine compartment 5 separated by a partition wall 6 provided with a communication orifice 7.
  • the filter 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 the waste sucked into the housing 3.
  • the housing 3 also comprises an air inlet 8 through which air transporting waste is sucked into the housing 3, and an air outlet 9 through which the air previously cleared of waste by the filtration device is discharged. outside the housing 3.
  • the housing 3 is advantageously equipped with wheels 11 to ensure the movement of the domestic vacuum cleaner 2.
  • the domestic vacuum cleaner 2 can 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 to 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
  • a suction accessory such as, for example, a rigid telescopic tube which can receive, at its end opposite to 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 casing 13.
  • the motor casing 13 comprises a front fairing 13.1 and a rear fairing 13.2 assembled to one another, for example by screwing or snapping, and a passage opening 14 made on the front fairing 13.1.
  • the suction device 12 further comprises a suction motor 15, also called motor-fan, arranged 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 include 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 a Vogellic sealing element 18 is annular and flexible, and comprises a first annular sealing portion 19 configured to cooperate in a sealed manner with the motor housing 13, a second annular sealing portion 21 configured to cooperate in a sealed manner 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 offset axially with respect to one another.
  • 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 engine casing 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 is molded the first annular sealing portion 19.
  • 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 each other so as to form, with the annular retaining ring 24 and the main body 25 of the front fairing 13.1, through orifices 27 which are angularly offset from one another and which are distributed around the passage opening 14.
  • the through orifices 27 extend in an arc of a circle and are aligned circumferentially.
  • the first annular sealing portion 19 has an annular sealing protrusion 28 extending around the passage opening 14 and projecting away from the suction motor 15.
  • the annular sealing protrusion 28 is configured to extend around the communication orifice 7 and to cooperate in a sealed manner with the partition wall 6.
  • the protuberance annular seal 28 covers the through holes 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 away from the suction motor 15, that is, 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 each other 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 aeraulic sealing element 18 and which is configured to cooperate in a sealed 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 against and held in sealing manner against the suction motor 15. when the suction motor 15 is energized and generates the suction flow. In other words, when the suction motor 15 is energized 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 against the suction motor and maintained in a sealed manner 15.
  • the annular sealing lip 32 comprises an annular sealing rib 33 configured to cooperate in a sealed manner with the suction motor 15.
  • the annular sealing rib 33 is advantageously provided at the bottom. level with an outer peripheral edge of the annular sealing lip 32, and extends substantially parallel to the central axis A of the aeraulic sealing element 18.
  • the second annular sealing portion 21 further comprises bearing ribs 34 extending from the annular sealing lip 32 and configured to bear against the suction motor 15, and for example against a surface external fan cover 16.
  • the support ribs 34 extend around the air inlet opening 17 and extend radially with respect to the central axis A of the element d a Vogellic sealing 18.
  • the support ribs 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 up to the annular sealing rib 33 and on the other hand up to an internal peripheral edge of the lip. annular seal 32.
  • the annular intermediate portion 22 of the a Vogellic 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 away from 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 one another.
  • 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 connecting portion 37 located between the first and second tubular portions 35, 36 and connecting the first and second tubular portions 35, 36 to one another so as to define two annular folds 38, 39 concentric with the central axis A of the aeraulic sealing element 18.
  • the two annular folds 38, 39 are advantageously oriented in two opposite directions, such that the annular intermediate portion 22 has a longitudinal section generally in Z shape.
  • 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 aeraulic sealing element 18, and which s' each advantageously extend generally along a plane oriented radially with respect to the central axis A.
  • the radial folds 41 are angularly offset from each other and are advantageously regularly distributed around the central axis A.
  • Each radial fold 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 provided 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 part 44 may for example comprise an annular support part 44.1 extending around the suction motor 15, a rear part 44.2 extending to the rear of 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 engine casing 13, for example to the rear fairing 13.2, and a second fixing part 45.2 fixed to the support part 44.
  • the suspension system 43 may for example include 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. suction 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 engine casing 13.
  • the compensation spring 46 advantageously comprises a first end portion 46.1 fixed to the engine casing 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 Dispositif d'aspiration pour aspirateur domestique Active EP3626146B1 (fr)

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 EP3626146A1 (fr) 2020-03-25
EP3626146B1 true EP3626146B1 (fr) 2021-04-28

Family

ID=65243815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19190389.7A Active EP3626146B1 (fr) 2018-09-24 2019-08-06 Dispositif d'aspiration pour aspirateur domestique

Country Status (4)

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

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

Family Cites Families (10)

* 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
DE10004703A1 (de) * 2000-02-03 2001-08-23 Bosch Gmbh Robert Bügelfeder
EP2227998A4 (en) * 2007-11-22 2012-08-08 Toshiba Kk ELECTRICAL CLEANER
JP4538043B2 (ja) * 2007-11-28 2010-09-08 株式会社東芝 電気掃除機
JP4612668B2 (ja) * 2007-11-28 2011-01-12 株式会社東芝 電気掃除機
EP2255711A1 (en) * 2009-03-17 2010-12-01 Koninklijke Philips Electronics N.V. Vacuum cleaner
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
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
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
FR3086154B1 (fr) * 2018-09-24 2020-08-28 Seb Sa Dispositif d’aspiration pour aspirateur domestique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN110934540A (zh) 2020-03-31
CN110934540B (zh) 2023-03-14
ES2875385T3 (es) 2021-11-10
EP3626146A1 (fr) 2020-03-25
FR3086154B1 (fr) 2020-08-28
CN211511639U (zh) 2020-09-18
FR3086154A1 (fr) 2020-03-27

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