EP2964066B1 - Dispositif pour supprimer le bruit dans un aspirateur - Google Patents

Dispositif pour supprimer le bruit dans un aspirateur Download PDF

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Publication number
EP2964066B1
EP2964066B1 EP13707851.5A EP13707851A EP2964066B1 EP 2964066 B1 EP2964066 B1 EP 2964066B1 EP 13707851 A EP13707851 A EP 13707851A EP 2964066 B1 EP2964066 B1 EP 2964066B1
Authority
EP
European Patent Office
Prior art keywords
baffle body
vacuum cleaner
dust bag
chamber
air passage
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
EP13707851.5A
Other languages
German (de)
English (en)
Other versions
EP2964066A1 (fr
Inventor
Tommy Andersson
Roger Karlsson
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.)
Electrolux AB
Original Assignee
Electrolux AB
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 Electrolux AB filed Critical Electrolux AB
Priority to EP20156616.3A priority Critical patent/EP3682782B1/fr
Publication of EP2964066A1 publication Critical patent/EP2964066A1/fr
Application granted granted Critical
Publication of EP2964066B1 publication Critical patent/EP2964066B1/fr
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
    • A47L9/122—Dry filters flat
    • 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 an arrangement in a vacuum cleaner for reducing noise emitted from said vacuum cleaner, a filter grille comprised in such an arrangement, and a vacuum cleaner comprising such an arrangement according to the preambles of the independent claims.
  • Elevated noise levels in general may be disturbing, cause annoyance and may sometimes create stress.
  • sound levels even as low as 40 dB(A), about as loud as a refrigerator may be disturbing.
  • a vacuum cleaner An example of a home appliance which affects the sound levels in indoor environment, and which may generate noise levels which may be disturbing, is a vacuum cleaner.
  • a source of noise is the fan and the motor.
  • the bag chamber comprising the dust bag and the fan and motor chamber, comprising a motorized fan, are connected via an intake air passage, such that intake air from the dust bag chamber may pass into the motor and fan chamber.
  • a filter may be arranged, which is adapted to filter the intake air, and also function as a disaster filter protecting the motor if the dust bag would break.
  • the motor chamber comprises an exhaust air outlet through which the exhaust air may travel out from the motor chamber to the ambient air outside the vacuum cleaner.
  • a disadvantage with the intake air passage opening is that noise emitted from the motor and fan chamber may travel out through the intake and the filter, which may cause increased noise levels.
  • EP 2374394 A1 shows a vacuum cleaner which has a holding grid, holding a motor protection filter, arranged between a dust chamber and motor chamber in a swivelable manner.
  • a locking unit locks the holding grid in a swiveling position.
  • the locking unit is arranged in an area in a hinged side of the holding grid.
  • a resting nose and a recess serve as the locking unit for locking the holding grid, where the recess corresponds to the resting nose.
  • the recess has a projection that is contactable by the resting nose. The projection protrudes over a surface, in which the recess is formed.
  • Document JPH10211128 discloses a vacuum cleaner with a noise reduction means.
  • the noise reduction means comprises a conical cone with noise absorbing material. The noise is reflected by the side face of the cone and thereby attenuated.
  • vacuum cleaners are often designed to be optimized from different points of view e.g. noise.
  • noise levels often are a concern in indoor environment, e.g. in households, the inventors of the present invention have identified a need for a vacuum cleaner which is further improved with respect to noise levels.
  • an object of the present invention is to provide an arrangement for reducing the noise emitted from a vacuum cleaner, which arrangement is inexpensive, easy and straight forward to manufacture.
  • a further object of the present invention is to provide a vacuum cleaner which provides an overall reduced noise level.
  • the arrangement in a vacuum cleaner for reducing noise emitted from a motor chamber in said vacuum cleaner comprises a dust bag chamber, adapted to enclose a dust bag, and a motor chamber, adapted to comprise at least a motorized fan.
  • the arrangement further comprises an intake air passage opening arranged between said dust bag chamber and said motor chamber, through which intake air is adapted to travel from said dust bag chamber into said motor chamber.
  • the dust bag chamber and said motor chamber being integrated in said vacuum cleaner.
  • a baffle body, adapted to redirect said emitted noise, is arranged in said dust bag chamber such that said baffle body at least partly covers said intake air passage opening.
  • the present invention relates to a filter grille for a vacuum cleaner comprised in an arrangement for reducing noise emitted from a motor chamber in said vacuum cleaner.
  • the present invention relates to a vacuum cleaner comprising an arrangement for reducing noise emitted from a motor chamber in said vacuum cleaner.
  • the word upper refers to the part located furthest away from a supporting surface, e.g. a floor, when the vacuum cleaner is placed horizontally on the floor (as shown in Figure 1 ).
  • the word lower refers to the part located closest to the supporting surface.
  • FIG. 1 shows a partially cutaway view, of the arrangement 1 in a vacuum cleaner 2 for reducing noise emitted from a motor chamber 3 in the vacuum cleaner 2, according to one embodiment of the present invention.
  • the arrangement 1 comprises a dust bag chamber 4, adapted to enclose a dust bag, and a motor chamber 3, adapted to comprise at least a motorized fan (not shown).
  • An intake air passage opening 5 is arranged between the dust bag chamber 4 and the motor chamber 3, through which intake air is adapted to travel from the dust bag chamber 4 into the motor chamber 3.
  • the dust bag chamber 4 and the motor chamber 3 are integrated in the vacuum cleaner 2.
  • a baffle body 6, adapted to redirect the emitted noise, is arranged in the dust bag chamber 4 such that the baffle body 6 at least partly covers the intake air passage opening 5.
  • the baffle body 6 is arranged such that it is adapted to redirect the emitted noise travelling through the air passage opening 5, and as a consequence, the baffle body 6 reduces the propagation of sound waves in the vacuum cleaner 2.
  • the baffle body 6 is adapted to cover at least an upper portion 7 of the air passage opening 5.
  • the baffle body 6 is adapted to redirect the noise partly in a direction towards a lower portion 8 of the air passage opening 5 and partly in a direction back into the motor chamber 3.
  • redirecting the emitted noise prevents or at least reduces the propagation of sound waves in the vacuum cleaner 2, wherein the emitted noise from the vacuum cleaner is reduced.
  • the baffle body reduces the noise level emitted from the vacuum cleaner about 0,3-0,5 dB(A).
  • the air passage opening 5 has an area, and the baffle body 6 covers approximately 5 - 50% of the area.
  • the area is approximately 1300-4500 mm 2 .
  • the intake air passage opening 5 may have any shape, such as an elongated square-shape, or a circular shape, or any other suitable shape.
  • the baffle body 6 is hollow and forms a passageway 9, through which passageway 9 the intake air is adapted to travel.
  • the passageway 9 ensures that the intake air may freely travel from the dust bag chamber 4 into the motor chamber. Furthermore, the sound waves are reflected inside the passageway, wherein the emitted noise is redirected, and advantageously reduces the noise level. Naturally, the intake air also travels through the intake air passage opening 5 through other portions of the opening 5 not being covered by the baffle body 6.
  • the baffle body 6 is arranged such that it extends from an upper edge 10 of the air passage opening 5 and downwards in a direction towards an opposite lower portion 8 of the air passage opening 5.
  • the baffle body 6 is preferably made from any hard plastic, or any other similar material, suitable for redirecting emitted sound.
  • the baffle body 6 comprises an attachment portion 11 attached at least along the upper edge 10.
  • the baffle body 6 may be detachable, or may be integrated with any other suitable feature, such as the partition wall 18 between the dust bag chamber 4 and the motor chamber 3.
  • the baffle body 6 is preferably tightly attached to the partition wall 18 or a filter grille 13, such that emitted noise, at least partially, is restricted from entering the dust bag chamber 4.
  • a detachable baffle body 6 provides more flexibility for the user and facilitates cleaning of the inside of the vacuum cleaner 2.
  • the baffle body 6 is provided with a bend 12 and wherein a bending angle ⁇ of the bend 12 is approximately 10 - 90°.
  • the bent baffle body 6 reflects the sound waves in a desired direction, and thus redirects the emitted noise, wherein the noise level is reduced.
  • the bending angle ⁇ is approximately 90°. This is advantageous in that parts of the emitted noise, i.e. parts of the sound waves, is reflected back into the motor chamber and parts of the noise is reflected such that it is directed in a direction towards a lower part 17 of the dust bag chamber 4.
  • the baffle body 6 has an inner side 15, directed towards the passageway 9, and wherein the inner side 15 is provided with a sound absorbing material (not shown).
  • the material may be any sound absorbing plastic material, e.g. T-Plasztik Item number 30301 with 100% PES fibers.
  • the thickness of the material is preferably 4 - 6 mm.
  • the sound absorbing material is advantageous in that it reduces propagation of sound waves and thus further reduces the noise levels from the vacuum cleaner 2.
  • the present invention relates to a filter grille 13 for a vacuum cleaner 2 comprised in an arrangement 1 as described above.
  • the filter grille 13 is adapted to be arranged in the dust bag chamber 4 such that it essentially covers the intake air passage opening 5 arranged between the dust bag chamber 4 and the motor chamber 3.
  • the baffle body 6 is attached to the filter grille 13 along at least one filter grille edge 14 of the filter grille 13, such that the baffle body 6, which is adapted to redirect the emitted noise, at least partly covers the intake air passage opening 5.
  • the baffle body 6 being attached to a filter grille 13 is advantageous in that a conventional filter grille 13, arranged in a conventional filter grille holder, may easily be changed into a filter grille 13 provided with a baffle body 6, according to the present invention.
  • the baffle body 6 being attached to a filter grille 13 facilitates mounting of the baffle body 6 in the vacuum cleaner 2.
  • the baffle body 6 is integrated with the filter grille 13.
  • the filter grille 13 has a filter grille area, and the baffle body 6 covers approximately 5-50% of the filter grille area.
  • FIG 3 shows a side view of the filter grille 13 comprising a baffle body 6 shown in Figure 2 .
  • the baffle body 6 has an inner side 15, directed towards the passageway 9, and the inner side 15 may be provided with a sound absorbing material, adapted to absorb the emitted noise.
  • the inner side 15 of the baffle body 6 and the front side 19 of the filter grille 13 are arranged at a distance D from each other.
  • the distance D is preferably between 10-30 mm, and more preferably 15 mm.
  • the baffle body 6 redirects the emitted noise partly in a direction towards an opposite filter grille edge 16, and partly back into the motor chamber 3.
  • the present invention relates to a vacuum cleaner 2 comprising an arrangement 1 as described above, and as illustrated in Figure 1 .
  • the vacuum cleaner 2 comprises a dust bag chamber 4, adapted to enclose a dust bag, and a motor chamber 3 comprising at least a motorized fan (not shown).
  • the vacuum cleaner 2 further comprises an intake air passage opening 5, through which intake air is adapted to travel from the dust bag chamber 4 to the motor chamber 3.
  • the chambers 3, 4 are integrated in the vacuum cleaner 2.
  • the baffle body 6, being adapted to redirect the emitted noise, is arranged in the dust bag chamber 4 such that the baffle body 6 at least partly covers the intake air passage opening 5.
  • the vacuum cleaner 2 being provided with such an arrangement provides an overall reduced noise level emitted from the vacuum cleaner 2, since the overall reduced noise level emitted from the vacuum cleaner 2, since the arrangement redirects the emitted noise such that less noise reaches the outside of the vacuum cleaner 2.
  • the vacuum cleaner 2 comprises a partition wall 18 arranged between the dust bag chamber 4 and the motor chamber 3, the partition wall 18 comprising the intake air passage opening 5.
  • the dust bag chamber 4 is adapted to comprise a dust bag (not shown).
  • the filter grille 13 comprising the baffle body 6 is attached to the partition wall 18, the filter grille 13 is arranged such that the filter grille 13 essentially covers the intake air passage opening 5.
  • the baffle body 6 is integrated with the filter grille 13.
  • the baffle body 6 is attached to the partition wall 18, i.e. the baffle body 6 is attached directly to the partition wall 18 and a separate filter grille is arranged to essentially cover the intake air passage opening 5.
  • the baffle body 6 is arranged such that it covers approximately 5-50% of the intake air passage opening 5. Consequently, the baffle body 6 then also partly covers the filter grille.
  • the baffle body 6 is hollow and forms a passageway 9, through which passageway 9 the intake air is adapted to travel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)

Claims (14)

  1. Dispositif (1) dans un aspirateur (2) destiné à réduire le bruit émis par une chambre de moteur (3) dans ledit aspirateur (2), ledit dispositif comprenant :
    une chambre (4) de sac à poussière conçue pour renfermer un sac à poussière ;
    une chambre de moteur (3) conçue pour comprendre au moins un ventilateur motorisé ;
    une ouverture de passage d'air d'admission (5) disposée entre ladite chambre (4) de sac à poussière et ladite chambre (3) de moteur, depuis laquelle de l'air d'admission peut se déplacer de ladite chambre (4) de sac à poussière dans ladite chambre (3) de moteur ;
    ladite chambre (4) de sac à poussière et ladite chambre (3) de moteur étant intégrées dans ledit aspirateur (2), caractérisé en ce que le dispositif comprend un corps formant un écran acoustique (6) conçu pour rediriger ledit bruit émis, disposé dans ladite chambre (4) de sac à poussière de sorte que ledit corps formant un écran acoustique (6) couvre au moins en partie ladite ouverture de passage d'air d'admission (5) et soit conçu pour couvrir au moins une partie supérieure (7) de ladite ouverture de passage d'air (5).
  2. Dispositif selon la revendication 1, dans lequel ladite ouverture de passage d'air (5) possède une surface, et dans lequel ledit corps formant un écran acoustique (6) couvre approximativement 5 à 50 % de ladite surface.
  3. Dispositif selon l'une quelconque des revendications 1 et 2, dans lequel ledit corps formant un écran acoustique (6) est creux et forme un passage (9), passage (9) à travers lequel l'air d'admission peut se déplacer.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, dans lequel ledit corps formant un écran acoustique (6) est disposé de façon à s'étendre depuis un bord supérieur (10) de ladite ouverture de passage d'air (5) et vers le bas en direction d'une partie inférieure opposée (8) de ladite ouverture de passage d'air (5) .
  5. Dispositif selon la revendication 4, dans lequel ledit corps formant un écran acoustique (6) comprend une partie de fixation (11) fixée au moins le long dudit bord supérieur (10).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, dans lequel ledit corps formant un écran acoustique (6) est muni d'un coude (12) et dans lequel un angle de courbure α dudit coude est approximativement compris entre 10 et 90°.
  7. Dispositif selon la revendication 6, dans lequel ledit angle de courbure α est approximativement égal à 90°.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, dans lequel ledit corps formant un écran acoustique (6) possède un côté intérieur (15) dirigé vers ledit passage (9), et dans lequel ledit côté intérieur (15) est muni d'un matériau absorbant les sons.
  9. Grille de filtrage (13) pour un aspirateur (2), comprise dans un dispositif (1) selon l'une quelconque des revendications précédentes, ladite grille de filtrage (13) étant conçue pour être disposée dans ladite chambre (4) de sac à poussière de façon à couvrir essentiellement ladite ouverture de passage d'air d'admission (5), disposée entre ladite chambre (4) de sac à poussière et ladite chambre (3) de moteur, dans laquelle ledit corps formant un écran acoustique (6) est fixé à ladite grille de filtrage (13) le long d'au moins un bord (14) de grille de filtrage de ladite grille de filtrage (13), afin que ledit corps formant un écran acoustique (6), conçu pour rediriger ledit bruit émis, couvre au moins en partie ladite ouverture de passage d'air d'admission (5).
  10. Grille de filtrage selon la revendication 9, dans laquelle ledit corps formant un écran acoustique (6) est intégré à ladite grille de filtrage (13).
  11. Grille de filtrage selon l'une quelconque des revendications 9 et 10, dans laquelle ladite grille de filtrage (13) possède une surface de grille de filtrage, et dans laquelle ledit corps formant un écran acoustique (6) couvre 5 à 50 % de ladite surface de grille de filtrage.
  12. Aspirateur (2) comprenant un dispositif selon les revendications 1 à 8, dans lequel ledit aspirateur (2) comprend :
    une chambre de sac à poussière (4) conçue pour renfermer un sac à poussière ;
    une chambre de moteur (3) conçue pour comprendre au moins un ventilateur motorisé ;
    une ouverture de passage d'air d'admission (5) depuis laquelle de l'air d'admission peut se déplacer de ladite chambre (4) de sac à poussière dans ladite chambre (3) de moteur, et dans lequel lesdites chambres (3, 4) sont intégrées dans ledit aspirateur (2), dans lequel ledit corps formant un écran acoustique (6), conçu pour rediriger ledit bruit émis, est disposé dans ladite chambre (4) de sac à poussière de sorte que ledit corps formant un écran acoustique (6) couvre au moins en partie ladite ouverture de passage d'air d'admission (5).
  13. Aspirateur selon la revendication 12, dans lequel ledit aspirateur (2) comprend une paroi de séparation (18) disposée entre ladite chambre (4) de sac à poussière et ladite chambre (3) de moteur, ladite paroi de séparation comprenant ladite ouverture de passage d'air d'admission (5), et dans lequel ledit corps formant un écran acoustique (6) est fixé à ladite paroi de séparation.
  14. Aspirateur selon la revendication 12, dans lequel ledit aspirateur (2) comprend une grille de filtrage (13) couvrant essentiellement ladite ouverture de passage d'air d'admission (5) et dans lequel ledit corps formant un écran acoustique (6) est intégré à ladite grille de filtrage (13).
EP13707851.5A 2013-03-04 2013-03-04 Dispositif pour supprimer le bruit dans un aspirateur Active EP2964066B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20156616.3A EP3682782B1 (fr) 2013-03-04 2013-03-04 Agencement dans un aspirateur pour réduire le bruit émis par ledit aspirateur, aspirateur comprenant un tel agencement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/054282 WO2014135192A1 (fr) 2013-03-04 2013-03-04 Agencement dans un aspirateur pour réduire le bruit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP20156616.3A Division EP3682782B1 (fr) 2013-03-04 2013-03-04 Agencement dans un aspirateur pour réduire le bruit émis par ledit aspirateur, aspirateur comprenant un tel agencement

Publications (2)

Publication Number Publication Date
EP2964066A1 EP2964066A1 (fr) 2016-01-13
EP2964066B1 true EP2964066B1 (fr) 2020-02-12

Family

ID=47833056

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20156616.3A Active EP3682782B1 (fr) 2013-03-04 2013-03-04 Agencement dans un aspirateur pour réduire le bruit émis par ledit aspirateur, aspirateur comprenant un tel agencement
EP13707851.5A Active EP2964066B1 (fr) 2013-03-04 2013-03-04 Dispositif pour supprimer le bruit dans un aspirateur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20156616.3A Active EP3682782B1 (fr) 2013-03-04 2013-03-04 Agencement dans un aspirateur pour réduire le bruit émis par ledit aspirateur, aspirateur comprenant un tel agencement

Country Status (3)

Country Link
EP (2) EP3682782B1 (fr)
CN (1) CN105007792B (fr)
WO (1) WO2014135192A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017153277A1 (fr) * 2016-03-08 2017-09-14 Arcelik Anonim Sirketi Aspirateur
CN107280577B (zh) 2016-03-31 2020-11-03 康塔有限公司 真空吸尘器
CN109171551B (zh) * 2018-08-17 2024-08-06 莱克电气股份有限公司 一种吸尘器的风道组件

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547927A (en) * 1983-12-08 1985-10-22 Shop-Vac Corporation Compact vacuum cleaner
JPH10211128A (ja) * 1997-01-30 1998-08-11 Sanyo Electric Co Ltd 電気掃除機
CN1951302A (zh) * 2005-10-17 2007-04-25 乐金电子(天津)电器有限公司 真空吸尘器的集尘装置
CN101999865A (zh) * 2009-09-02 2011-04-06 乐金电子(天津)电器有限公司 吸尘器过滤系统
EP2374394B1 (fr) 2010-04-06 2012-07-18 Miele & Cie. KG Aspirateur doté d'une grille de retenue pour un filtre de protection de moteur
JP2011250973A (ja) * 2010-06-02 2011-12-15 Panasonic Corp 電気掃除機
CN203942385U (zh) * 2014-03-14 2014-11-12 江苏美的春花电器股份有限公司 电机罩及具有其的吸尘器

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
EP3682782A1 (fr) 2020-07-22
EP2964066A1 (fr) 2016-01-13
CN105007792B (zh) 2017-07-04
WO2014135192A1 (fr) 2014-09-12
EP3682782B1 (fr) 2023-01-25
CN105007792A (zh) 2015-10-28

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