EP2873360B1 - Aspirateur cyclonique et séparateur de saletés - Google Patents

Aspirateur cyclonique et séparateur de saletés Download PDF

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Publication number
EP2873360B1
EP2873360B1 EP13193052.1A EP13193052A EP2873360B1 EP 2873360 B1 EP2873360 B1 EP 2873360B1 EP 13193052 A EP13193052 A EP 13193052A EP 2873360 B1 EP2873360 B1 EP 2873360B1
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EP
European Patent Office
Prior art keywords
inlet
longitudinal axis
wall
cyclonic separator
vacuum cleaner
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.)
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Application number
EP13193052.1A
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German (de)
English (en)
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EP2873360A1 (fr
Inventor
Sergey V. Makarov
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Techtronic Floor Care Technology Ltd
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Techtronic Floor Care Technology Ltd
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Priority to EP13193052.1A priority Critical patent/EP2873360B1/fr
Publication of EP2873360A1 publication Critical patent/EP2873360A1/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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1608—Cyclonic chamber constructions
    • 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
    • A47L9/1625—Multiple arrangement thereof for series flow
    • A47L9/1633—Concentric cyclones
    • 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
    • A47L9/165—Construction of inlets

Definitions

  • the present invention relates to cyclonic vacuum cleaners.
  • Cyclonic vacuum cleaners often include a base or foot and an upright handle pivotally attached to the base.
  • a dirt separator can be removably attached to the upright handle, and the dirt separator can include a first cyclonic stage, a second cyclonic stage downstream from the first cyclonic stage, and a dirt cup to collect dirt separated from the first and the second cyclonic stages.
  • Dirt and air is often drawn through an inlet aperture in the base and transported to the dirt separator.
  • the dirt and air enter the first cyclonic stage of the separator where cyclonic action separates dirt, which falls into the dirt cup, and the relatively clean air travels to the second cyclonic stage.
  • cyclonic action separates relatively fine dirt that still remains in the air. The relatively fine dirt falls into the dirt cup and the relatively clean air is discharged to the atmosphere.
  • US2009/133370 discloses a cyclone dust collecting apparatus for a vacuum cleaner that includes a first cyclone, a second cyclone disposed inside the first cyclone, and an air guiding member to form an entrance of the second cyclone through which semi-clean air discharged from the first cyclone enters.
  • WO2012/146616 discloses a vacuum cleaner comprising a body, a motor disposed inside the body, a cleaning head that is in contact with a surface to be cleaned, a transfer conduit that is connected to the body from one end and to the cleaning head from the other end, sucking the dust particles on the surface to be cleaned into the body by transferring the suction force created by the motor to the cleaning head, a reservoir disposed inside the body, into which liquid is filled, an inlet port delivering the dirty air received in the body via the transfer conduit into the reservoir, and a cyclone unit in a frustoconical form, disposed inside the reservoir and extending along the reservoir.
  • EP1772091 discloses a cyclone dust collection apparatus comprising a cyclone body having a first cyclone section and a plurality of cyclone cones arranged around a lower part of the first cyclone, each cyclone cone having a conical shape whose diameter is reduced as approaching the top end thereof, a top cover joined to the top end of the cyclone body and formed with a helical air inflow duct for introducing ambient air into the first cyclone section, an inflow/outflow guide cover joined to the lower end of the cyclone body, and a discharge cover joined to the lower part of the inflow/outflow guide cover.
  • the invention provides a vacuum cleaner operable to separate debris from an air stream.
  • the vacuum cleaner includes a first housing having an upper end, a lower end, a first longitudinal axis, and an inner wall that surrounds the first longitudinal axis, and the inner wall at least partially defines a first cyclonic separator having an inlet configured to receive the air stream.
  • a second housing is located at least partially within the first housing, and the second housing includes a second longitudinal axis and an inner wall that surrounds the second longitudinal axis, and the inner wall of the second housing at least partially defines a second cyclonic separator having an inlet configured to receive the air stream from the first cyclonic separator.
  • the vacuum cleaner further includes a dirt cup in fluid communication with the first and second cyclonic separators, and the dirt cup is configured to receive the debris separated from the air stream by the first and second cyclonic separators.
  • the inlet of the second cyclonic separator directs the air steam in an inlet flow direction from the upper end of the first housing toward the lower end of the first housing and along the second longitudinal axis into the second cyclonic separator.
  • the inlet of the second cyclonic separator has an inlet cross-sectional area for flow of the air stream measured normal to the second longitudinal axis that decreases in the inlet flow direction.
  • the invention provides a vacuum cleaner operable to separate debris from an air stream.
  • the vacuum cleaner includes a first housing having an upper end, a lower end, a first longitudinal axis and an inner wall that surrounds the first longitudinal axis, and the inner wall at least partially defines a first cyclonic separator having an inlet configured to receive the air stream.
  • a second housing is located at least partially within the first housing, and the second housing includes a second longitudinal axis and an inner wall that surrounds the second longitudinal axis, and the inner wall of the second housing at least partially defines a second cyclonic separator having an inlet configured to receive the air stream from the first cyclonic separator.
  • the vacuum cleaner further includes a dirt cup in fluid communication with the first and second cyclonic separators, and the dirt cup is configured to receive the debris separated from the air stream by the first and second cyclonic separators, and a vane extends at least partially around and along the second longitudinal axis and is located at least partially within the inlet of the second cyclonic separator. The vane is configured to rotate the air stream about the second longitudinal axis.
  • An air outlet duct is in fluid communication with the second cyclonic separator to transport the air stream from the first cyclonic separator.
  • the inlet of the second cyclonic separator directs the air steam in an inlet flow direction from the upper end of the first housing toward the lower end of the first housing along the second longitudinal axis and into the second cyclonic separator, an the air outlet duct transports the air stream from the first cyclonic separator in an outlet flow direction from the lower end of the first housing toward the upper end of the first housing along the second longitudinal axis.
  • Fig. 1 illustrates a vacuum cleaner 10 that includes a base 12, a handle 14, and a dirt separator assembly 18.
  • the base 12 includes a suction inlet 22 and wheels 24 to facilitate movement of the base 12 along a surface to be cleaned.
  • the handle 14 is pivotally coupled to the base 12 such that the handle 14 pivots relative to the base 12 between an upright storage position, which is illustrated in Fig. 1 , and an inclined operating position.
  • a conduit 28 extends along the handle 14 and provides fluid communication between the suction inlet 22 and the dirt separator assembly 18.
  • the dirt separator assembly 18 includes a first housing 32, a second housing 34, a dirt cup 36, a motor and fan assembly 38, and an inlet conduit 40.
  • the illustrated first housing 32 forms an outer housing of the dirt separator assembly 18 and the outer housing 32 includes an upper end 44 and a lower end 46.
  • the dirt cup 36 is coupled to the lower end 46 of the outer housing 32 and the inlet conduit 40 extends from the housing 32 adjacent the upper end 44 of the housing 32.
  • the outer housing 32 further includes a longitudinal axis 48 that extends centrally through the upper end 44 and the lower end 46 of the housing 32.
  • An inner wall 50 of the housing 32 surrounds the longitudinal axis 48 and defines a first cyclonic separator 52, which is a first stage separator in the illustrated embodiment.
  • the inner wall 50 is cylindrically shaped such that the inner wall 50 defines a radius 53 about the longitudinal axis 48 that is generally constant along the length of the inner wall 50 from the upper end 44 to the lower end 46.
  • the first cyclonic separator 52 includes an inlet 54 adjacent the upper end 44 of the housing 32 and the inlet 54 is in fluid communication with the inlet conduit 40.
  • the second housing 34 forms an inner housing of the dirt separator assembly 18 in the illustrated embodiment, and the inner housing 34 is partially located within the outer housing 32.
  • the housing 34 includes an inner wall 56 that is generally frusto-conically shaped in the illustrated embodiment.
  • the housing 34 further includes an upper end 58 and a lower end 60 and the frusto-conical inner wall 56 is located between the ends 58 and 60.
  • a longitudinal axis 62 of the housing 34 extends centrally through the ends 58 and 60 of the housing 34 and the inner wall 56 surrounds the axis 62 such that a radius 64 measured from the axis 62 to the inner wall 56 varies constantly along the axis 62 and is constant about the axis 62 at points along the axis 62.
  • the inner wall 56 defines a second cyclonic separator 66, which is a second stage cyclonic separator in the illustrated embodiment.
  • the illustrated embodiment includes only a single second stage cyclonic separator, in other embodiments, the dirt separator assembly 18 may include multiple second stage cyclonic separators.
  • the separator 66 is the final cyclonic stage of the separator 18 in the illustrated embodiment, but in other embodiments, the separator may include additional stages (e.g., a tertiary stage).
  • the second cyclonic separator 66 includes an inlet 70 that receives air from the first cyclonic separator 52.
  • the illustrated inlet 70 is adjacent the upper end 44 of the outer housing 32 and the upper end 58 of the second housing 34.
  • the inlet 70 includes an inner wall 74 and an outer wall 76.
  • the inner wall 74 is generally cylindrical and surrounds the longitudinal axis 62 of the second cyclonic separator 66, and in the illustrated embodiment, the longitudinal axis 62 is concentric with the inner wall 74.
  • the outer wall 76 surrounds the inner wall 74 and is also generally cylindrical and the outer wall 76 is concentric with the inner wall 74.
  • the walls 74 and 76 guide an air stream in an inlet flow direction, generally represented by arrows 78 in Fig.
  • An inlet cross-sectional area for flow of the air stream is measured normal to the axis 62 between the walls 74 and 76, and in the illustrated embodiment, the inlet cross-sectional area for flow is an annular area.
  • the inlet 70 further includes helical vanes 80 that extend through the inlet cross-sectional area and the vanes 80 are helical such that the vanes 80 extend around the longitudinal axis 62 and along the longitudinal axis 62 in the inlet flow direction 78.
  • the vanes 80 extend from the inner wall 74 to the outer wall 76.
  • the inlet 70 of the second cyclonic separator 66 directs the air stream in the inlet flow direction 78 from the upper end 44 of the first housing 32 toward the lower end 46 of the first housing 32 along the longitudinal axis 62 of the second cyclonic separator 66 and into the second cyclonic separator 66. Meanwhile, the vanes 80 rotate the air stream about the axis 62.
  • the illustrated dirt separator assembly 18 includes a shroud 84, a skirt 86, and a support 88.
  • the shroud 84 includes apertures 89 and the shroud 84 is located between the first cyclonic separator 52 and the second cyclonic separator 66 to filter any remaining relatively large debris in the air stream between the first and second separator 52 and 66.
  • the skirt 86 is attached to the support 88 and the skirt 86 minimizes the amount of debris in the dirt cup 36 that becomes re-entrained in the air stream by minimizing the airflow past the skirt 86 between the dirt cup 36 and the first cyclonic separator 52.
  • the support 88 extends from a lower wall of the dirt cup 36 to support the shroud 84, the skirt 86 and the inner housing 34 within the outer housing 32.
  • the dirt cup 36 is located below the first and second cyclonic separators 52 and 66 to receive and collect dirt and debris separated from the air stream by the separators 52 and 66.
  • the dirt cup 36 is located adjacent the lower end 46 of the outer housing 32.
  • the dirt separator assembly 18 further includes an air outlet duct 90.
  • the air outlet duct 90 is in fluid communication with the second cyclonic separator 66 to transport the air stream from the second cyclonic separator 66 in an outlet flow direction, generally represented by arrow 92 in Fig. 4 , in a direction from the lower end 46 of the outer housing 32 toward the upper end 44 of the outer housing 32 along the longitudinal axis 62 of the second cyclonic separator 66.
  • the outlet duct 90 includes an inlet 94 that is located within the second cyclonic separator 66 in the illustrated embodiment.
  • the inlet 94 is spaced a distance 96 measured parallel to the longitudinal axis 62 in the inlet flow direction from the air inlet 70 of the second cyclonic separator 66 to define a gap between the inlet 94 of the air outlet duct 90 and the inlet 70 of the second cyclonic separator 66.
  • the gap represented by the distance 96, minimizes the amount of air from the air stream that by-passes the second cyclonic separator 66 and travels from the inlet 70 directly into the outlet duct 90 without traveling through the separator 66 to remove debris from the air stream.
  • the air outlet duct 90 further includes an outlet 98, and in the illustrated embodiment, the outlet 98 is formed as a divergent nozzle.
  • a longitudinal axis 100 extends centrally through the inlet 94 and the outlet 98, and in the illustrated embodiment, the longitudinal axis 100 is co-axial with the longitudinal axis 62 of the second cyclonic separator 66.
  • the outlet duct 90 extends through the inlet 70 such that the inner wall 74 of the inlet 70 surrounds the outlet duct 90.
  • the air outlet duct 90 further includes a flow straightening member 102 that straightens the air stream (i.e., reduces swirling) as it travels through the duct 90.
  • the dirt separator assembly 18 further includes a filter 104.
  • the illustrated filter 104 is a pre-motor filter (i.e., positioned upstream of the motor and fan assembly 38).
  • the filter 104 can include a pleated filter, foam filter, and the like.
  • the assembly 18 can include more the one filter (i.e., multiple stage filters).
  • the divergent nozzle 98 of the outlet duct 90 expands the air stream in a direction generally normal to the axis 100 before the air stream travels through the filter 104 to maximize the surface area of the filter 104 that is utilized to filter the air stream.
  • the motor and fan assembly 38 is coupled to the outer housing 32 adjacent the upper end 44 of the housing 32 and the assembly 38 includes a motor housing 106 having exhaust vents 108.
  • the motor and fan assembly 38 operates as a suction source to generate the air stream.
  • the motor and fan assembly 38 is coupled to the housing 32 such that the motor and fan assembly 38 is removable from the handle 14 and the base 12 with the dirt separator assembly 18 as a single component.
  • the motor and fan assembly includes a direct current (DC) motor powered by a rechargeable battery (e.g., lithium-ion rechargeable battery). In other embodiments, the motor and fan assembly can be powered by 120 volt alternating current.
  • DC direct current
  • a rechargeable battery e.g., lithium-ion rechargeable battery
  • the motor and fan assembly can be powered by 120 volt alternating current.
  • the user provides power to the motor and fan assembly 38, such as by operating a switch, which generates the air stream.
  • the air stream draws dirt and debris along with the air stream through the suction inlet 22.
  • the air stream entrained with dirt and debris, travels up the conduit 28.
  • the air stream then enters the first cyclonic separator 52 through the inlet 54. Cyclonic action causes relatively heavy dirt and debris to be separated from the air stream and fall into the dirt cup 36 ( Fig. 2 ).
  • the air stream the travels through the apertures 89 of the shroud 84 and into the inlet 70.
  • the inlet 70 guides the air stream in the inlet flow direction 78 and the helical vanes 80 rotate the air stream about the axis 62.
  • the air stream enters the second cyclonic separator 66 where cyclonic action separates relatively fine dust and debris from the air stream.
  • the separated dust and debris falls via gravity into the dirt cup 36 and the relatively clean air stream travels in the outlet flow direction 92 into the outlet duct 90.
  • the air stream is further cleaned by the filter 104 before being exhausted to the atmosphere through the exhaust vents 108 in the motor housing 106.
  • Fig. 5a illustrates an inlet 270 according to another embodiment for use with the dirt separator assembly 18.
  • the inlet 270 of Fig. 5a is similar to the inlet 70 of Figs. 1 - 4 . Accordingly, only differences between the inlets 70 and 270 will be discussed in detail below and like components having been given like reference numbers plus 200.
  • the axial inlet 270 includes an outer wall 276 having an inner surface 306 along which the air stream travels, and the inner surface 306 faces an inner surface 308 of the inner wall 274 along which the air stream travels.
  • the inner surface 306 of the outer wall 276 is generally parallel to the axis 62 when the inlet 270 is used with the dirt separator assembly 18 described above, and the inner surface 308 of the inner wall 274 is at an acute angle 310 with respect to the axis 62 as illustrated in Fig. 5 .
  • the angle 310 is about 20 degrees. In other embodiments, the angle 310 can range from about 10 degrees to about 30 degrees.
  • the inner wall 274 tapers in the inlet flow direction 278 such that a distance 312 between the walls 274 and 276 measured normal to the axis 62 decreases in the inlet flow direction 278 to decrease the inlet cross-sectional area for the flow of the air stream.
  • a distance 312 between the walls 274 and 276 measured normal to the axis 62 decreases in the inlet flow direction 278 to decrease the inlet cross-sectional area for the flow of the air stream.
  • an upstream end 314 of the inlet 270 has an upstream cross-sectional area 316 for flow of the air stream greater than a downstream cross-sectional area 318 for flow at a downstream end 320.
  • a flow area ratio is defined as the area 316 divided by the area 318, and in the illustrated embodiment, the flow area ratio is about 1.4, and in other embodiments the flow area ratio is in the range from 1.2 to 1.6, and in yet other embodiments, the flow area ratio is greater than 1.
  • the axial inlet 270 of Fig. 5a converges from the upstream end 314 to the downstream end 320 to increase the velocity of the air stream as it travels through the inlet 270.
  • Fig. 6 illustrates an inlet 370 according to another embodiment for use with the dirt separator assembly 18.
  • the inlet 370 of Fig. 6 is similar to the axial inlet 270 of Figs. 5a and 5b . Accordingly, only differences between the inlets 270 and 370 will be discussed in detail below and like components having been given like reference numbers plus 100.
  • the axial inlet 370 includes an outer wall 376 having an inner surface 406 along which the air stream travels, and the inner surface 406 faces an inner surface 408 of an inner wall 374 along which the air stream travels.
  • the inner surface 408 of the inner wall 374 is generally parallel to the axis 62 when the inlet 370 is used with the dirt separator assembly 18 described above, and the inner surface 406 of the outer wall 376 is at an acute angle 410 with respect to the axis 62 as illustrated in Fig. 6 .
  • the angle 410 is about 20 degrees. In other embodiments, the angle 410 can range from about 10 degrees to about 30 degrees.
  • the outer wall 376 tapers in the inlet flow direction 378 such that a distance 412 between the walls 374 and 376 measured normal to the axis 62 decreases in the inlet flow direction 378 to decrease the inlet cross-sectional area for the flow of the air stream.
  • an upstream end 414 of the inlet 370 has an upstream cross-sectional area for flow of the air stream greater than a downstream cross-sectional area for flow at a downstream end 420.
  • a flow area ratio is defined as the upstream cross-sectional area divided by the downstream cross-sectional area, and in the illustrated embodiment the flow area ratio is about 1.4, and in other embodiments the flow area ratio is in the range from 1.2 to 1.6, and in yet other embodiments, the flow area ratio is greater than 1.
  • the axial inlet 370 of Fig. 6 converges from the upstream end 414 to the downstream end 420 to increase the velocity of the air stream as it travels through the inlet 370.
  • Fig. 7 illustrates an inlet 470 according to another embodiment for use with the dirt separator assembly 18.
  • the axial inlet 470 of Fig. 7 is similar to the axial inlet 70 of Figs. 1 - 4 . Accordingly, only differences between the inlets 70 and 470 will be discussed in detail below and like components having been given like reference numbers plus 400.
  • the inlet 470 includes helical vanes 480 having a vane thickness 482, measured around the longitudinal axis 62 and normal to the axis 62 as illustrated in Fig. 7 .
  • the vane thickness 482 increases from an upstream end 514 of the inlet 470 to a downstream end 520 of the inlet 470.
  • vanes 480 are thinner at the upstream end 514 and thicker at the downstream end 520, an upstream cross-sectional flow area defined between adjacent vanes 480 is greater than a downstream end cross-sectional flow area.
  • the flow area at the upstream end 514 converges toward the downstream end 520 to increase the velocity of the air stream as it travels through the inlet 470.
  • the helical vanes 470 of Fig. 7 with variable vane thickness 482 may be used with any of the inlets 70, 270, and 370 described herein.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Claims (14)

  1. Aspirateur (10) permettant de séparer des débris d'un flux d'air,
    l'aspirateur (10) comprenant :
    un premier corps (32) comportant une extrémité supérieure (44), une extrémité inférieure (46), un premier axe longitudinal (48) et une paroi intérieure (50) qui enferme le premier axe longitudinal (48), la paroi intérieure (50) définissant, au moins en partie, un premier séparateur cyclonique (52) comportant une entrée (54) conçue pour recevoir le flux d'air ;
    un second corps (34) situé au moins en partie à l'intérieur du premier corps (32), le second corps (34) comportant un second axe longitudinal (62) et une paroi intérieure (56) qui enferme le second axe longitudinal (62), la paroi intérieure (56) du second corps (34) définissant, au moins en partie, un second séparateur cyclonique (66) comportant une entrée (70) conçue pour recevoir le flux d'air provenant du premier séparateur cyclonique (32) ; et
    un vide-poussière (36) en communication fluidique avec les premier et second séparateurs cycloniques (52, 66), le vide-poussière (36) étant conçu pour recevoir les débris séparés du flux d'air par les premier et second séparateurs cycloniques (52, 66),
    l'entrée (70) du second séparateur cyclonique (66) dirigeant le flux d'air dans un sens d'écoulement d'entrée allant de l'extrémité supérieure (44) du premier corps (32) vers l'extrémité inférieure (44) du premier corps (32) et le long du second axe longitudinal (62) dans le second séparateur cyclonique (66), l'entrée (70) du second séparateur cyclonique (66) étant caractérisée par une section transversale d'entrée pour l'écoulement du flux d'air, mesurée perpendiculairement au second axe longitudinal (62), qui diminue dans le sens d'écoulement d'entrée.
  2. Aspirateur (10) selon la revendication 1, dans lequel l'entrée (70) du second séparateur cyclonique (66) comprend une paroi intérieure (74) qui dirige le flux d'air dans le sens d'écoulement d'entrée et enferme le second axe longitudinal (62), et une paroi extérieure (76) qui dirige le flux d'air dans le sens d'écoulement d'entrée et enferme la paroi intérieure (74) de l'entrée (70) du second séparateur cyclonique (66), la section transversale d'entrée s'étendant de la paroi intérieure (74) de l'entrée (70) à la paroi extérieure (76) de l'entrée (70) de sorte que la section transversale d'entrée soit une section annulaire.
  3. Aspirateur (10) selon la revendication 2, dans lequel la paroi intérieure (74) de l'entrée (70) du second séparateur cyclonique (66) est à section décroissante dans le sens du second axe longitudinal (62) de sorte qu'une distance entre la paroi intérieure (74) de l'entrée (70) et la paroi extérieure (76) de l'entrée (70), mesurée perpendiculairement au second axe longitudinal (62), diminue dans le sens d'écoulement d'entrée afin de diminuer la section transversale d'entrée pour l'écoulement du flux d'air dans le sens d'écoulement d'entrée.
  4. Aspirateur (10) selon la revendication 2 ou 3, dans lequel la paroi extérieure (76) de l'entrée (70) du second séparateur cyclonique (66) est à section décroissante dans le sens du second axe longitudinal (62) de sorte qu'une distance entre la paroi intérieure (74) de l'entrée (70) et la paroi extérieure (76) de l'entrée (70), mesurée perpendiculairement au second axe longitudinal (62), diminue dans le sens d'écoulement d'entrée afin de diminuer la section transversale d'entrée pour l'écoulement du flux d'air dans le sens d'écoulement d'entrée.
  5. Aspirateur (10) selon la revendication 2, 3 ou 4, comprenant en outre un clapet (80), qui s'étend autour du second axe longitudinal (62) et dans le sens d'écoulement d'entrée, situé dans l'entrée (70) du second séparateur cyclonique (66).
  6. Aspirateur (10) selon la revendication 5, dans lequel le clapet (80) s'étend de la paroi intérieure (74) de l'entrée (70) du second séparateur cyclonique (62) à la paroi extérieure (76) de l'entrée (70).
  7. Aspirateur (10) selon la revendication 5 ou 6, dans lequel le clapet (80) est un premier clapet, l'aspirateur (10) comprenant en outre un second clapet (80), qui s'étend autour du second axe longitudinal (62) et dans le sens d'écoulement d'entrée, situé dans l'entrée (70) du second séparateur cyclonique (66) à proximité du premier clapet (80), une épaisseur du premier clapet (80) étant mesurée autour du second axe longitudinal (62) et perpendiculairement au second axe longitudinal (62), et l'épaisseur du premier clapet (80) augmentant dans le sens d'écoulement d'entrée afin de diminuer la section transversale d'entrée pour l'écoulement du flux d'air dans le sens d'écoulement d'entrée.
  8. Aspirateur (10) selon l'une quelconque des revendications précédentes, dans lequel le premier axe longitudinal (48) et le second axe longitudinal (62) sont coaxiaux.
  9. Aspirateur (10) selon l'une quelconque des revendications précédentes, comprenant en outre un conduit de sortie d'air (90) en communication fluidique avec le second séparateur cyclonique (66) afin de transporter le courant d'air à partir du second séparateur cyclonique (66) dans un sens d'écoulement de sortie depuis l'extrémité inférieure (46) du premier corps (32) vers l'extrémité supérieure (44) du premier corps (32) le long du second axe longitudinal (62).
  10. Aspirateur (10) selon la revendication 9, dans lequel le conduit de sortie d'air (90) comprend une entrée (94) située à l'intérieur du second séparateur cyclonique (66), l'entrée (94) du conduit de sortie d'air (90) étant espacé d'une distance mesurée parallèlement au second axe longitudinal (62) dans le sens d'écoulement d'entrée par rapport à l'entrée d'air (70) du second séparateur cyclonique (66) afin de définir un espace entre l'entrée (94) du conduit de sortie d'air (90) et l'entrée (70) du second séparateur cyclonique (66).
  11. Aspirateur (10) selon l'une quelconque des revendications précédentes, comprenant en outre un ensemble moteur d'aspiration et ventilateur (38) accouplé au premier corps (32) au-dessus du vide-poussière (36).
  12. Aspirateur (10) selon la revendication 11, comprenant en outre un corps de moteur (106) comprenant des évacuations (108), le corps de moteur (106) enfermant au moins en partie l'ensemble moteur d'aspiration et ventilateur (38).
  13. Aspirateur (10) selon l'une quelconque des revendications 1 à 10, comprenant en outre un ensemble moteur d'aspiration et ventilateur (38) et une batterie conçue pour alimenter l'ensemble moteur d'aspiration et ventilateur (38).
  14. Aspirateur (10) selon la revendication 13, dans lequel l'ensemble moteur d'aspiration et ventilateur (38) est accouplé au premier corps (32) au-dessus du vide-poussière (36).
EP13193052.1A 2013-11-15 2013-11-15 Aspirateur cyclonique et séparateur de saletés Active EP2873360B1 (fr)

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EP2873360B1 true EP2873360B1 (fr) 2017-01-11

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KR100630949B1 (ko) * 2005-10-10 2006-10-04 삼성광주전자 주식회사 멀티 사이클론 집진장치
US7722693B2 (en) * 2006-02-24 2010-05-25 Samsung Gwangju Electronics Co., Ltd Cyclone dust collecting apparatus for vacuum cleaner
TR201104001A1 (tr) * 2011-04-25 2012-11-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Siklon ünitesi içeren bir elektrikli süpürge.

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