EP3184011B1 - Geometrie eines luftkreislaufs für einen handsauger - Google Patents

Geometrie eines luftkreislaufs für einen handsauger Download PDF

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Publication number
EP3184011B1
EP3184011B1 EP16204881.3A EP16204881A EP3184011B1 EP 3184011 B1 EP3184011 B1 EP 3184011B1 EP 16204881 A EP16204881 A EP 16204881A EP 3184011 B1 EP3184011 B1 EP 3184011B1
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EP
European Patent Office
Prior art keywords
vacuum cleaner
hand
revolution
held vacuum
main
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EP16204881.3A
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English (en)
French (fr)
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EP3184011A1 (de
Inventor
Donatien Frot
Fabien David
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SEB SA
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SEB SA
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/24—Hand-supported suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1616—Multiple arrangement thereof
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1658—Construction of outlets

Definitions

  • the present invention relates to hand-held vacuum cleaners of the “bagless” type operating on batteries, using an electronically commutated motor (ECM) and comprising a cyclonic filtration device.
  • ECM electronically commutated motor
  • the invention relates to a particular architecture of an aeraulic circuit for evacuating an air flow at the outlet of the engine.
  • Hand-held vacuum cleaners which include a main air suction duct as well as suction means generating an air flow through the main air suction duct. These vacuum cleaners also include a cyclonic dust separation device aeraulically connected to the main suction duct and a secondary exhaust duct which is arranged to exhaust the air flow. Said secondary discharge duct is generally connected in an aeraulic manner to the cyclonic dust separation device and is arranged after the latter.
  • a vacuum cleaner according to the preamble of claim 1 is already known, for example from GB-A-2468299 .
  • An object of the present invention is to respond to the drawbacks mentioned above and to provide an aeraulic circuit which makes it possible to reduce the pressure losses as much as possible, to reduce the noise level of the vacuum cleaner, to cool the engine electronics, to direct the air outlet flow and to ensure the compactness of the hand vacuum cleaner.
  • the secondary air flow discharge duct is lengthened with respect to the existing ducts which directly reject the air out of the main body. This makes it possible to reduce the speed of the air flow leaving the secondary exhaust duct and thus makes it possible to at least partially reduce the noise. Indeed, as the contact surface between the air flow and the secondary exhaust duct is increased, there is more friction of the flow with the walls of the secondary exhaust duct, which has the consequence of mechanically reducing the speed. of the air flow at the outlet and therefore reduce noise.
  • the secondary air discharge duct forms an angle of between 80 and 90 ° with the external outlet.
  • the outgoing flow can be oriented so that it is not directed towards the user.
  • the main body comprises at least a main part and a secondary part and said main part comprises a portion which is positioned under said secondary part and said secondary part comprises a central cone of revolution along an axis of revolution directed towards the inside of the main body and which is positioned at least in part below the portion of the main part.
  • Such a construction makes it possible to manufacture a secondary exhaust duct from the main body and thus to reduce the noise while maintaining the compactness of such a vacuum cleaner because it is not necessary to add an annex duct which would increase the size. of such a vacuum cleaner.
  • the main part comprises a first wall and the secondary part comprises a second wall and said first and second walls form the secondary discharge duct.
  • the hand vacuum cleaner comprises a motor which comprises an axis of revolution substantially parallel to the axis of revolution of the central cone of revolution.
  • This characteristic has the effect of having a motor which is oriented in the same direction as the circulating air flow, which makes it possible not to interfere with said flow and therefore to have no pressure drops.
  • the cyclonic separation device comprises an axis of revolution which is substantially perpendicular to the axis of revolution of the cone or of the motor.
  • This characteristic has the effect of optimizing the compactness of the cyclonic separation device.
  • the external outlet of said secondary discharge duct extends at an angle of between 10 ° and 300 ° around the axis of revolution of the cone.
  • This feature has the effect of adapting the size of the external outlet to the quantity of air expelled.
  • the external outlet of said secondary discharge duct forms a surface on the main body of between 5 and 20 cm 2 and preferably 16 cm 2 .
  • the vacuum cleaner comprises a screen at the outlet of the main suction duct so as to divide the flow and to direct part of the air flow towards the secondary air discharge duct and another part to an electronic card so as to cool the latter.
  • an acoustic foam is positioned in the secondary air discharge duct.
  • This foam has the effect of further reducing the speed of the air flow and therefore of reducing noise.
  • a hand-held vacuum cleaner 1 is composed of a main body 2.
  • This main body 2 comprises at one of its ends a main air suction duct 6 and at another end a secondary duct 8 for discharging the air. air.
  • This secondary air discharge duct 8 comprises an external outlet 9.
  • the main body 2 contains suction means 7 generating an air flow through the main suction duct 6. air and the secondary duct 8 for evacuating the air.
  • the air is sucked in by the main air suction duct 6 and is rejected by the secondary air evacuation duct 8 at the level of the external outlet 9.
  • an acoustic foam (not shown) can be positioned in the secondary air discharge duct 8 in order to further attenuate the air speed and therefore the noise.
  • a gripping handle 5 is attached to the main body 2. It allows a user to handle the vacuum cleaner 1 by hand. In the embodiment of the invention, this is located under the main body 2 for good handling, but in other embodiments, not shown, it can be located elsewhere on the main body 2 .
  • the hand-held vacuum cleaner 1 further comprises a device 4 for cyclonic dust separation.
  • This cyclonic separation device 4 is attached to the main body 2. It is located below the latter so as to be perpendicular and connected in an aeraulic manner to the main suction duct 6.
  • the cyclonic separation device 4 is arranged in a revolution about an axis of revolution ⁇ 3.
  • the axis of revolution ⁇ 3 is substantially perpendicular to the main suction duct 6, as visible at figure 1 .
  • the cyclonic separation device 4 is single-stage. In another variant embodiment, not shown, it may have two stages.
  • the suction means 7 are composed of a motor 7.
  • This motor 7 is positioned around and along an axis of revolution ⁇ 2.
  • the axis of revolution ⁇ 2 of the motor is located substantially along the length of the main body 2 so that the motor is oriented in the direction of travel of the air flow.
  • this motor 7 is an electronically commutated motor (ECM).
  • the main body 2 is composed of at least a main part 12 and a secondary part 13.
  • the main part 12 comprises a portion 14 which is descending, that is to say which tilts towards the interior or the center of the main body 2.
  • This portion 14, like the main part 12, is at least in part substantially circular as visible at the figure 1 . In other words, this portion stretches at least at an angle of between 10 ° and 300 ° around the axis of revolution ⁇ 2.
  • This portion 14 is positioned under the secondary part 13.
  • the secondary part 13 for its part comprises a cone 15 which has a revolution along an axis of revolution ⁇ 1.
  • the axis of revolution ⁇ 1 is substantially parallel to the axis of revolution ⁇ 2 of the motor 7 which means that the cone 15 is positioned at the center of the secondary part 13.
  • This cone 15 will be called cone 15 of central revolution hereafter.
  • the top of the cone 15 is directed towards the inside of the main body 2. In this way, the cone 15 is positioned at least partly inside and in the center of the portion 14 of the main part 12.
  • the main part 12 and the secondary part 13 form the secondary duct 8 for discharging the air to the external outlet 9.
  • the main part 12 (including the portion 14) comprises a first wall 16 which corresponds to the surface of the secondary air discharge duct 8 on which the air rests in order to exit.
  • the secondary part 13 comprises a second wall 17 which corresponds to the surface of the secondary air discharge duct 8 on which also rests the air which is to be discharged. It is more precisely these walls which form the secondary duct 8 for evacuating the air.
  • This comprises a passage 10 which forms a fold 11 at an angle ⁇ of between 120 ° and 200 °.
  • This bend 11 forms a baffle which forces the air, which passes through the secondary discharge duct 8, to make a practically complete bend, that is to say a bend (or baffle) at an angle of between 120 ° and 200 °.
  • this turn takes place around an axis of trajectory A.
  • This axis of trajectory A is directed along the portion 14 of the main part 12 as visible at the bottom. figure 3 .
  • the advantage of this bend is to increase the surface area of the walls in contact with the air flow and therefore to increase the friction of the air with the walls, which makes it possible to slow down the speed of the air.
  • the slowed-down air arrives through the secondary air discharge duct 8 at the level of the external outlet 9.
  • This external outlet 9 corresponds to a gap formed between the main part 12 and the secondary part 13 along the periphery of the main body 2.
  • the separation between the two parts is on average 1 cm. It can also be narrower or wider.
  • the outer outlet 9 of said secondary discharge duct 8 stretches at an angle of between 10 ° and 300 ° around the axis of revolution ⁇ 2.
  • the outer outlet 9 forms a plane P.
  • Said plane P corresponds to a plane P tangent to the main body 2 and is positioned between the outer ends of the walls of the secondary air discharge duct 8 at the level of the outer outlet 9
  • the plane P and the secondary exhaust duct 8 form between them an angle ⁇ which is between 80 and 90 ° so that the air makes a perpendicular turn in the secondary exhaust duct 8. In this way the air flow comes out substantially perpendicularly relative to the main body 2, which makes it possible to direct the flow in a direction other than towards the user.
  • the external outlet 9 of said secondary discharge duct 8 stretches along the main body 2. It stretches around the axis of revolution ⁇ 1 of the cone 15 at an angle of between 10 ° and 300 °.
  • the outer outlet 9 stretches at an angle of 300 ° around the axis of revolution ⁇ 1 and the area occupied by the outer outlet 9 is 16 cm 2 .
  • the hand-held vacuum cleaner 1 comprises an electronic card 19 which is positioned in the main body 2.
  • the hand-held vacuum cleaner 1 further comprises a screen 18 at the outlet of the main suction duct 6. This serves to divide the air flow and to direct a part of the air flow towards the secondary air discharge duct 8 and another part towards the electronic card 19 so as to cool the latter.
  • the part of the air flow incident on the electronic card 19 has a speed of between 6 and 15 ms -1 which makes it possible to cool the components most sensitive to temperature constraints.

Claims (10)

  1. Handstaubsauger (1), umfassend:
    - einen Hauptkörper (2), der einen Haltegriff (5) und einen Hauptluftsaugkanal (6) umfasst;
    - Saugmittel (7), die einen Luftstrom durch den Hauptluftsaugkanal (6) erzeugen;
    - eine ein- oder zweistufige Zyklon-Staubabscheidevorrichtung (4), die lufttechnisch mit dem Hauptsaugkanal (6) verbunden ist;
    - einen Sekundärkanal (8) zum Ausleiten der Luft, der einen äußeren Auslass (9) umfasst;
    dadurch gekennzeichnet, dass
    der Sekundärkanal (8) zum Ausleiten der Luft mindestens einen Durchgang (10) umfasst, in dem der Sekundärkanal (8) eine Abwinklung (11) in einem Winkel im Bereich zwischen 120° und 200°, und vorzugsweise von 180° entlang einer Bahnachse (A) bildet.
  2. Handstaubsauger (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass der Sekundärkanal (8) zum Ausleiten der Luft mit dem äußeren Auslass (9) einen Winkel im Bereich zwischen 80 und 90° bildet.
  3. Handstaubsauger (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Hauptkörper (2) mindestens einen Hauptteil (12) und einen Sekundärteil (13) umfasst, und der Hauptteil (12) einen Abschnitt (14) umfasst, der unter dem Sekundärteil (13) angebracht ist, und der Sekundärteil (13) einen zentralen Drehkegel (15) entlang einer Drehachse (Δ1) umfasst, der zur Innenseite des Hauptkörpers (2) gerichtet ist und der mindestens zum Teil unter dem Abschnitt (14) des Hauptteils (12) angebracht ist.
  4. Handstaubsauger (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass der Hauptteil (12) eine erste Wand (16) umfasst, und der Sekundärteil (13) eine zweite Wand (17) umfasst, und die erste und die zweite Wand den Ausleit-Sekundärkanal (8) bilden.
  5. Handstaubsauger (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass er einen Motor (7) umfasst, der eine Drehachse (Δ2) umfasst, die im Wesentlichen zur Drehachse (Δ1) des zentralen Drehkegels (15) parallel ist.
  6. Handstaubsauger (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass die Zyklon-Abscheidevorrichtung (4) eine Drehachse (Δ3) umfasst, die im Wesentlichen zur Drehachse (Δ1) des Kegels oder des Motors senkrecht steht.
  7. Handstaubsauger (1) nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass der äußere Auslass (9) des Ausleit-Sekundärkanals (8) in einem Winkel im Bereich zwischen 10° und 300° um die Drehachse (Δ1) des Kegels verläuft.
  8. Handstaubsauger (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der äußere Auslass (9) des Ausleit-Sekundärkanals (8) eine Fläche am Hauptkörper (2) im Bereich zwischen 5 und 20 cm2 und vorzugsweise von 16 cm2 bildet.
  9. Handstaubsauger (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass er eine Blende (18) am Auslass des Hauptsaugkanals (6) umfasst, um den Strom zu teilen und einen Teil des Luftstroms zum Sekundärkanal (8) zum Ausleiten der Luft, und einen anderen Teil zu einer Elektronikplatine (19) zu lenken, um diese zu kühlen.
  10. Handstaubsauger (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass im Sekundärkanal (8) zum Ausleiten der Luft ein Akustikschaumstoff angebracht ist.
EP16204881.3A 2015-12-23 2016-12-16 Geometrie eines luftkreislaufs für einen handsauger Active EP3184011B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1563160A FR3046046B1 (fr) 2015-12-23 2015-12-23 Geometrie d'un circuit aeraulique pour un aspirateur a main

Publications (2)

Publication Number Publication Date
EP3184011A1 EP3184011A1 (de) 2017-06-28
EP3184011B1 true EP3184011B1 (de) 2021-04-07

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EP16204881.3A Active EP3184011B1 (de) 2015-12-23 2016-12-16 Geometrie eines luftkreislaufs für einen handsauger

Country Status (6)

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EP (1) EP3184011B1 (de)
KR (1) KR102617201B1 (de)
CN (2) CN106901651B (de)
ES (1) ES2869950T3 (de)
FR (1) FR3046046B1 (de)
WO (1) WO2017109360A1 (de)

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FR3046046B1 (fr) * 2015-12-23 2017-12-22 Seb Sa Geometrie d'un circuit aeraulique pour un aspirateur a main
US11382475B2 (en) * 2017-06-19 2022-07-12 Tti (Macao Commercial Offshore) Limited Surface cleaning apparatus
CN109805826A (zh) * 2017-11-20 2019-05-28 追觅科技（天津）有限公司 吸尘器主体及手持式吸尘器
CN108030440B (zh) * 2017-11-29 2023-03-10 浙江亿力机电股份有限公司 手持充电吸尘器
KR102095103B1 (ko) * 2018-04-05 2020-03-30 구병회 진공청소기
CN108903781A (zh) * 2018-08-29 2018-11-30 珠海格力电器股份有限公司 一种手持式吸尘器
CN109199218B (zh) * 2018-09-28 2021-06-25 江苏美的清洁电器股份有限公司 清洁设备和用于清洁设备的消音装置
FR3089403B1 (fr) * 2018-12-07 2020-11-20 Seb Sa Aspirateur domestique équipé d’un élément d’absorption acoustique
FR3092979B1 (fr) * 2019-02-21 2021-05-28 Seb Sa Aspirateur équipé d’une tubulure de liaison
CN112205921B (zh) * 2019-07-09 2021-11-12 江苏美的清洁电器股份有限公司 吸尘器
AU2020205211A1 (en) 2019-08-02 2021-02-18 Techtronic Cordless Gp Blowers having noise reduction features
CN214742186U (zh) 2020-01-21 2021-11-16 创科无线普通合伙 鼓风机
AU2020286200A1 (en) 2020-01-21 2021-08-05 Techtronic Cordless Gp Power tool having noise reduction features
EP4233660A1 (de) 2022-02-23 2023-08-30 Versuni Holding B.V. Geräuschverminderung in einer staubsaugereinheit

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EP1803382A2 (de) 2005-12-27 2007-07-04 Samsung Electronics Co., Ltd. Staubsauger und Methode zur Verminderung des damit erzeugten Lärms
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Also Published As

Publication number Publication date
KR20180093062A (ko) 2018-08-20
CN106901651A (zh) 2017-06-30
CN106901651B (zh) 2021-09-17
EP3184011A1 (de) 2017-06-28
CN206979439U (zh) 2018-02-09
FR3046046B1 (fr) 2017-12-22
ES2869950T3 (es) 2021-10-26
WO2017109360A1 (fr) 2017-06-29
KR102617201B1 (ko) 2023-12-26
FR3046046A1 (fr) 2017-06-30

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