GB2406531A - Cyclonic dust-collecting apparatus for a vacuum cleaner - Google Patents

Cyclonic dust-collecting apparatus for a vacuum cleaner Download PDF

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Publication number
GB2406531A
GB2406531A GB0414530A GB0414530A GB2406531A GB 2406531 A GB2406531 A GB 2406531A GB 0414530 A GB0414530 A GB 0414530A GB 0414530 A GB0414530 A GB 0414530A GB 2406531 A GB2406531 A GB 2406531A
Authority
GB
United Kingdom
Prior art keywords
dust
cover
chamber
air
collecting receptacle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0414530A
Other versions
GB2406531B (en
GB0414530D0 (en
Inventor
Jang-Keun Oh
Hyun-Ju Lee
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Gwangju Electronics Co Ltd
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 Samsung Gwangju Electronics Co Ltd filed Critical Samsung Gwangju Electronics Co Ltd
Publication of GB0414530D0 publication Critical patent/GB0414530D0/en
Publication of GB2406531A publication Critical patent/GB2406531A/en
Application granted granted Critical
Publication of GB2406531B publication Critical patent/GB2406531B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
    • B04C5/06—Axial inlets
    • 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
    • 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
    • A47L9/1666—Construction of outlets with filtering means
    • 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
    • A47L9/1683—Dust collecting chambers; Dust collecting receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/107—Cores; Devices for inducing an air-core in hydrocyclones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
    • B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cyclones (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

A cyclonic dust-collecting apparatus (300) comprises a first chamber (370, Fig 1) fluidly communicating with a suction port, a second chamber (380) fluidly communicating with the first chamber, and a vacuum generating source (130). Dust is centrifugally separated from the air drawn into the first chamber (370, Fig 1). A partition (330) having at least one aperture (335) connects the first and the second chambers (370, Fig 1, 380), a respective guide member (337) being disposed adjacent to the or each aperture. The partition (330) is formed between the first and the second chambers (370, Fig 1, 380). Accordingly, when the air dispersed from the first chamber by the aperture(s) (335) and the guide member(s) (337), flows into the second chambers (380), the speed of the swirling air in the second chamber increases. Therefore, the dust-collection efficiency of the cyclonic dust-collecting apparatus (300) is improved.

Description

Cyclonic Dust-Collecting Apparatus for a Vacuum Cleaner This invention
relates to a vacuum cleaner, and in particularly to a cyclonic dustcollecting apparatus disposed in a vacuum cleaner that separates contaminants from the air using a centrifugal force.
A conventional vacuum cleaner cleans a surface by drawing in dust and dirt (hereinafter referred to as "dust") from the surface together with air, and includes a cleaner body that houses a vacuum generating source, a nozzle unit through which dust-carrying air is sucked in from the surface, and a dust-collecting apparatus for separating dust from the air. One known type of conventional vacuum cleaner uses a semi-permanently usable cyclonic dust-collecting apparatus as the dust-collecting apparatus for centrifugally separating dust from the drawn-in air. Figure 1 is a view schematically showing an upright vacuum cleaner 100 having a cleaner body l l 0 and such a cyclonic l 5 dust-collecting apparatus 180.
The cleaner body 110 houses a vacuum generating source 130, and the dustcollecting apparatus 180 is removably mounted in a dust-collecting chamber 140 provided in the cleaner body. The dust-collecting chamber 140 is connected to a nozzle unit 120 via a first air suction path 160. The vacuum generating source 130 is connected to the dust-collecting chamber 140 via a second air suction path 170.
The cyclonic dust-collecting apparatus 180 includes an air suction inlet 183 connected to the first air suction path 160, an air discharge outlet 185 connected to the second air suction path 170, and a cyclone chamber 187 in which air drawn in through the air suction inlet swirls to generate a centrifugal force for separating dust D from the air.
The efficiency of this cyclonic dust-collecting apparatus 180 in separating dust from the drawn-in air depends on the magnitude of the centrifugal force of the air swirling in the cyclone chamber 187, which in turn depends on the swirling speed of the air drawn in through the air suction inlet 183. In order to increase the swirling speed of the drawnin air, the cyclonic dust-collecting apparatus 180 requires a vacuum generating source 130 that will generate a more powerful suction force. However, a vacuum generating source capable of generating a powerful suction force increases manufacturing costs.
Accordingly, it is an aim of the invention to provide a cyclonic dustcollecting apparatus for a vacuum cleaner, which apparatus is capable of increasing the swirling speed of air drawn in and swirled in a cyclone chamber, thereby improving the dust-collecting efficiency.
The present invention provides a cyclonic dust-collecting apparatus, which is disposed in a suction path of a vacuum cleaner, the suction path being connected to a suction port through which air is drawn in by a vacuum generating source generating a suction force at the suction port, thereby separating dust from the air drawn in through the suction port, the cyclonic dust-collecting apparatus comprising: a first chamber in fluid communication with the suction port; a second chamber in fluid communication with the first chamber and the vacuum generating source, the second chamber being adapted for centrifugally separating dust from the air drawn into the first chamber; and a partition having at least one aperture connecting the first and second chambers, and at least one guide member disposed adjacent to the aperture, the partition being formed between the first and the second chambers, wherein the aperture(s) and the guide member(s) disperse the air flowing from the first chamber to the second chamber.
The or each guide member may be inclined such that the air current forms an acute angle with respect to one side surface of the partition facing the second chamber, while flowing into the second chamber via the or each aperture.
Advantageously, the or each guide member extends from one side surface of the partition facing the second chamber in an inclined manner, and has a distal end disposed in the second chamber.
The or each aperture may be formed in a radial direction with respect to the centre of the partition.
The partition may be disk-shaped, and the or each aperture may be formed adjacent to an edge of the partition.
The or each guide member may be inclined in the same direction with respect to the partition.
In a preferred embodiment, the apparatus further comprises a dustcollecting receptacle having an air discharge outlet connected to the vacuum generating source and having an open end; a first cover covering the open end of the dust-collecting apparatus; and a second cover separately connected to one of the first cover and the dust-collecting receptacle to cover one side of the first cover, with the second cover being in fluid communication with the suction port; wherein the first chamber is an inner space between the first cover and the second cover, the second chamber is an inner space between the first cover and the dustcollecting receptacle, the partition is part of an upper wall of the first cover enclosed by the second cover and the dust-collecting receptacle, and the or each aperture is disposed in the upper wall of the first cover.
The dust-collecting receptacle may be cylindrical having an open upper end, and the first and second covers may be sequentially connected to the upper portion of the dust-collecting receptacle.
The dust-collecting receptacle may comprise the air discharge outlet penetrating through the base of the dust-collecting receptacle in which the dust separated from the air is collected; and an air discharge pipe upwardly protruding from the base of the dust-collecting receptacle, and having an open upper end and a lower end covering the air discharge outlet to partition off the air discharge outlet from an inner space of the dust-collecting receptacle.
The dust-collecting receptacle may include at least one first backflowprevention member protruding from the base of the dust-collecting receptacle. The side surfaces of the first backflow-prevention member may be connected to the outer circumference of the air discharge pipe.
The apparatus may further comprise a grille having a plurality of slits formed in a side surface, the grille being connected to the upper end of the air discharge pipe.
Preferably, the upper end of the grille is separably connected to the base of the first cover, and the lower end of the grille is open and separably connected to the open upper end of the air discharge pipe when the first cover and the dust-collecting receptacle are connected to each other.
Advantageously, a disk-shaped second backflow-prevention member protrudes from at least one of the upper end of the air discharge pipe and the lower end of the grille.
Preferably, the second cover is cylindrical having an open lower end, and air passes through a side wall of the second cover and flows into the first chamber in a tangential direction with respect to the side wall of the second cover. Alternatively, the second cover is cylindrical having an open lower end open, and the air passes through an upper wall of the second cover and flows into the first chamber.
The invention will now be described in greater detail, by way of example, with reference to the drawings, in which: Figure 1 is a part-sectional side elevation of an upright vacuum cleaner housing a conventional cyclonic dust-collecting apparatus; Figure 2 is a part-sectional side elevation of an upright vacuum cleaner housing a cyclonic dust-collecting apparatus constructed according to a first embodiment of the invention; Figure 3 is an exploded perspective view of the cyclonic dust-collecting apparatus of Figure 2; Figure 4 is a perspective view of the base of a first cover of the cyclonic dust-collecting apparatus of Figures 2 and 3; Figure 5 is a perspective view of a dust-collecting receptacle forming part of the cyclonic dust-collecting apparatus of Figures 2 and 3; and Figure 6 is an exploded perspective view of a cyclonic dust-collecting apparatus constructed according to a second embodiment of the invention.
Referring to the drawings, Figures 2 and 3 show a cyclonic dustcollecting apparatus 300 having a dust-collecting receptacle 310, a first cover 330, and a second cover 350.
The dust-collecting receptacle 310, the first cover 330 and the second cover 350 are separably connected to one another and define a first chamber 370 and a second chamber 380 when connected together. The cyclonic dust-collecting apparatus 300 is removably mounted in a dust- collecting chamber 140 of a cleaner body 110. Sealing members S are provided to prevent air leakage between respective connecting parts, and a window W allows a user to observe the inside of the second chamber 380.
The dust-collating receptacle 310 is cylindrical having an open upper end 312, and forms the lower portion of the cyclonic dust-collecting apparatus 300. An air discharge outlet 311 is formed in the base of the dust-collecting receptacle 310, and is connected to a vacuum generating source 130. The air discharge outlet 311 is disposed at the lower end of an air discharge pipe 313 which extends upwardly from the base of the dust-collecting receptacle 310, and is partitioned off from the inside of the dust-collecting receptacle. An upper end 314 of the air discharge pipe 313 is open; and, when the first cover 330 is connected to the upper end 312 of the dust-collecting receptacle 310, the air discharge pipe has its upper end connected to the lower end of a grille 360. The air discharge pipe 313 performs the function of the second air suction path 170 (see Figure 1) of the conventional dust-collecting apparatus, so that the air discharge pipe connects the inside of the dust-collecting receptacle 310 (see Figure 5) to the vacuum generating source 130.
The second cover 350 is a cylindrical having an open lower end 352 which is separately connected to the upper end 312 of the dust-collecting receptacle 310. The first cover is disposed between the dust-collecting receptacle 310 and the second cover 350. The second cover 350 is connected to the first cover 330 or the dust-collecting receptacle 310 depending on the way that the first cover is connected to the dust- collecting receptacle. For example, if the first cover 330 is cylindrical having an open lower end 334 as in this embodiment, the second cover 350 is separately connected to an upper end 336 of first cover 330. The second cover 350 has a first aperture 351 connected to a first air suction path 160. Since the first air suction path 160 is similar to that of the conventional vacuum cleaner in construction and function, a detailed description of this path is not included.
The open lower end 334 of the first cover 330 is separably connected to the upper end 312 of the dust-collecting receptacle 310. The first chamber 370 is formed between the first cover 330 and the second cover 350, and the second chamber 380 is formed between the first cover and the dustcollecting receptacle 310. The first cover 330 serves as a partition to separate the first and the second chambers 370 and 380 from each other in the cyclonic dust-collecting apparatus 300. The second chamber 380 performs the same function as the conventional cyclone chamber 187 (see Figure 1). A first side surface 331 of the first cover 330 faces the first chamber 370. A second side surface 332 of the first cover 330 faces the second chamber 380.
As seen in Figure 4, the first cover 330 includes a plurality of second apertures 335 in fluid communication with the first chamber 370 and the second chamber 380, and with a respective guide member 337 corresponding to each second aperture. The second apertures 335 and the guide members 337 allow the air to be dispersed in a radial direction when the air flows from the first chamber 370 to the second chamber 380.
Preferably, the guide members 337 guide the air from the first chamber 370 to the second chamber 380 through the second apertures 335 at an acute angle (see Figure 2) with respect to the second side surface 332 of the first cover 330. Each guide member 337 is shaped as a blade that extends in an inclined manner from a portion of the second side surface 332 of the first cover 330 with a distal end positioned in the second chamber 380. It is preferred that the first and the second side surfaces 331 and 332 of the first cover 330 be disposed perpendicularly to the direction of gravity, that is to say parallel to the surface to be cleaned. Also, it is preferred that at least one second aperture 335 and at least one guide member 337 be provided in the first cover 330. s
The grille 360 is separably disposed at the second side surface 332 of the first cover 330, and provides a secondary filter after the air is first filtered in the second chamber 380 and advances towards the vacuum generating source 130. As shown in Figure 3, the grille 360 is pipe-shaped having a lower open end 362, and an upper end 364 separably connected to the second side surface 332 of the first cover 330. A side surface of the grille 360 is provided with a plurality of slits 361 through which the air flows from the second chamber 380 to the grille. The lower end 362 of the grille 360 is connected to the open upper end 314 of the air discharge pipe 313 when the first cover 330 is mounted on the dust-collecting receptacle 310. The grille 360 is disposed in the IS second chamber 380 so that it is isolated from the first chamber 370. The grille 370 prevents the air drawn in through first aperture 351 from directly flowing into the grille without swirling in the second chamber 380. The grille 360 may take various formations and connection methods as necessary.
As seen in Figure 2, as the vacuum generating source 130 is driven, air is drawn in through a suction port (not shown) formed in the bottom of the nozzle unit 120.
Air flows into the first chamber 370 via the first air suction path 160 and the first aperture 351. The first aperture 351 is formed in a side surface ofthe second cover 350, to allow the air to swirl in the first chamber 370. In order for the air drawn in through the first aperture 351 to be guided in a tangential direction by the inner circumference of the second cover 350, an air suction pipe 353 (see Figure 3), connecting the first aperture 351 and the first suction path 160, is disposed in a parallel relation to a tangential direction of the inner circumference of the first cover 330.
Air swirling in the first chamber 370 flows into the second chamber 380 through the second apertures 335. The speed of the air current increases as the air passes through the second apertures 335. The air flowing into the second chamber 380, after passing through the second apertures 335, is guided by the guide members 337, forming an acute angle with respect to the second side surface 332 of the first cover 330, so that the swirling air in the second chamber 380 is faster than in the first chamber 370. In order to increase the speed of the swirling air, the second apertures 335 extend in a radial direction on an upper surface of the first cover 330 with a uniform interval therebetween, and are preferably disposed adjacent to the connecting portion of the first cover 330 that connects to the second cover 350. It is preferred that the guide members 337 are inclined downwardly along the direction of flow of the air current in the first chamber 370.
Air drawn into the second chamber 380 swirls downwards along an inner wall of the dust-collecting receptacle 310. The dust D is separated from the air due to gravity, and also by the centrifugal force generated by the swirling air, and falls down into the dust-collecting receptacle 310. The "clean" air is then discharged via the vacuum generating source 130, the grille 360, the air discharge pipe 313 and the air discharge outlet 311. Preferably, a plurahty of first backflow-prevention members 317, each protruding from the base of the dust-collecting receptacle 310, are disposed along an outer circumference of the air discharge pipe 313 to facilitate the dust separation. A disk-shaped, second backflow-prevention member 367 is disposed under the grille 360.
The second backflow-prevention member 367 prevents air from ascending from the bottom of the dust-collecting receptacle 310 towards the slits 361 of the grille 360, thereby preventing dust from being discharged through the grille together with the air.
Figure 6 shows a cyclonic dust-collecting apparatus 300. This apparatus is similar to that of Figures 3 to 5, so like reference numerals will be used for like parts, and only the modifications will be described in detail. This apparatus 300 has a first aperture 351' penetrating through an upper wall of a second cover 350'. In this case, the air may not sufficiently swirl in a first chamber 370, and the dust-collection efficiency of the cyclonic dust-collecting apparatus 300 may not be as good as that of the cyclonic dust-collecting apparatus 200 of the first embodiment. However, as the drawn-in air flows from the first chamber 370 to a second chamber 380, the air swirls at a sufficient speed to separate the dust D from the air due to the second apertures 335 and the guide members 337, thereby increasing the dust-collection efficiency of the cyclonic dust-collecting apparatus 300.
Although the dust-collecting receptacle 310 is disposed at the lower portion of the dust-collecting apparatus 30O, the receptacle can be provided in other locations of the apparatus. The present invention can be applied to any cyclonic dust-collecting apparatus which includes a first chamber into which air is drawn in, a second chamber into which the dust is centrifugally separated from the air, and a partition separating the first and the second chambers from each other and having second apertures and guide members.
As described above, due to the second apertures 335 and the guide members 337 formed on the cover 330 which partitions the first and second chambers 370 and 380 from each other, the swirling speed of the air in the second chamber 380 can be increased independently of the performance of the vacuum generating source 130.
Accordingly, the dust-collection efficiency of the cyclonic dustcollecting apparatus 300 is improved.
Since the dust-collection efficiency is guaranteed by the second apertures 335 and the guide members 337, various modifications are possible in designing the construction of the air suction pipe 353 and the cleaner body 110 of the cyclonic dust-collecting apparatus 300.
Also, according to the present invention, it is possible that the first aperture 351 through which the air is drawn in, and the grille 360 through which the air is discharged from the second chamber 380, are disposed in different spaces and are independent from each other. Accordingly, since the air drawn in through the first aperture 351 is prevented from directly flowing into the grille 360 without swirling in the dust-collecting receptacle 310, the dust-collection efficiency of the cyclonic dust-collecting apparatus 300 can be improved.
The foregoing embodiments and advantages are merely exemplary, and are not to be construed as limiting the present invention. The description of the present invention is intended to be illustrative, and does not limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art.

Claims (14)

  1. Claims 1. A cyclonic dust-collecting apparatus, which is disposed in a
    suction path of a vacuum cleaner, the suction path being connected to a suction port through which air is drawn in by a vacuum generating source generating a suction force at the suction port, thereby separating dust from the air drawn in through the suction port, the cyclonic dustcollecting apparatus comprising: a first chamber in fluid communication with the suction port; a second chamber in fluid communication with the first chamber and the vacuum generating source, the second chamber being adapted for centrifugally separating dust from the air drawn into the first chamber; and a partition having at least one aperture connecting the first and second chambers, and at least one guide member disposed adjacent to the aperture, the partition being formed between the first and the second chambers, wherein the aperture(s) and the guide member(s) disperse the air flowing from the first chamber to the second chamber.
  2. 2. Apparatus as claimed in claim 1, wherein the or each guide member is inclined such that the air current forms an acute angle with respect to a side surface of the partition facing the second chamber, while flowing into the second chamber via the or each aperture.
  3. 3. Apparatus as claimed in claim 2, wherein the or each guide member extends from the side surface of the partition facing the second chamber in an inclined manner, and has a distal end disposed in the second chamber.
  4. 4. Apparatus as claimed in claim 3, wherein the or each aperture is formed in a radial direction with respect to the centre of the partition.
  5. 5. Apparatus as claimed in claim 4, wherein the partition is disk-shaped, and the or each aperture is formed adjacent to an edge of the partition.
  6. 6. Apparatus as claimed in any one of claims 1 to 5, further comprising: a dust-collecting receptacle having an air discharge outlet connected to the vacuum generating source and having an open end; a first cover covering the open end of the dust-collecting apparatus; and a second cover separately connected to one of the first cover and the dust- collecting receptacle to cover one side of the first cover, with the second cover being in fluid communication with the suction port; wherein the first chamber is an inner space between the first cover and the second cover, the second chamber is an inner space between the first cover and the dust-collecting receptacle, the partition is part of an upper wall of the first cover enclosed by the second cover and the dust- collecting receptacle, and the or each aperture is disposed in the upper wall of the first cover.
  7. 7. Apparatus as claimed in claim 6, wherein the dust-collecting receptacle is cylindrical having an open upper end, and the first and second covers are sequentially connected to the upper portion of the dust- collecting receptacle.
  8. 8. Apparatus as claimed in claim 7, wherein the dust-collecting receptacle further composes: the air discharge outlet penetrating through the base of the dust-collecting receptacle in which the dust separated from the air is collected; and an air discharge pipe upwardly protruding from the base of the dust-collecting receptacle, and having an open upper end and a lower end covering the air discharge outlet to partition off the air discharge outlet from an inner space of the dust-collecting receptacle.
  9. 9. Apparatus as claimed in claim 8, wherein the dust-collecting receptacle includes at least one first backflow-prevention member protruding from the base of the dust-collecting receptacle.
  10. 10. Apparatus as claimed in claim 8 or claim 9, further comprising a grille having a plurality of slits formed in a side surface, the grille being connected to the upper end of the air discharge pipe.
  11. 11. Apparatus as claimed in claim 10, wherein the upper end of the grille is separably connected to the base of the first cover, and the lower end of the grille is open and separably connected to the open upper end of the air discharge pipe when the first cover and the dust-collecting receptacle are connected to each other.
    1 0
  12. 1 2. Apparatus as claimed in claim 11, wherein a disk-shaped second backflow-prevention member protrudes from at least one of the upper end of the air discharge pipe and the lower end of the grille.
  13. 13. Apparatus as claimed in any one of claims 6 to 12, wherein the second cover is cylindrical having an open lower end, and the air passes through a side wall of the second cover and flows into the first chamber in a tangential direction with respect to the side wall of the second cover.
  14. 14. Apparatus as claimed in any one of claims 6 to 12, wherein the second cover is cylindrical having an open lower end open, and the air passes through an upper wall of the second cover and flows into the first chamber.
GB0414530A 2003-09-30 2004-06-29 Cyclonic dust-collecting apparatus for a vacuum cleaner Expired - Fee Related GB2406531B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020030067765A KR100594194B1 (en) 2003-09-30 2003-09-30 Cyclone dust separating device for vacuum cleaner

Publications (3)

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GB0414530D0 GB0414530D0 (en) 2004-07-28
GB2406531A true GB2406531A (en) 2005-04-06
GB2406531B GB2406531B (en) 2006-03-08

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GB0414530A Expired - Fee Related GB2406531B (en) 2003-09-30 2004-06-29 Cyclonic dust-collecting apparatus for a vacuum cleaner

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US (1) US20050066469A1 (en)
JP (1) JP2005103251A (en)
KR (1) KR100594194B1 (en)
CN (1) CN1602789A (en)
AU (1) AU2004202806B2 (en)
CA (1) CA2474307A1 (en)
DE (1) DE102004031416A1 (en)
ES (1) ES2251868B1 (en)
FR (1) FR2860134A1 (en)
GB (1) GB2406531B (en)
IT (1) ITMI20041176A1 (en)
RU (1) RU2275162C2 (en)

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GB2424605A (en) * 2005-03-29 2006-10-04 Samsung Kwangju Electronics Co Multi-cyclone apparatus for a vacuum cleaner

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DE102004031416A1 (en) 2005-04-28
AU2004202806A1 (en) 2005-04-14
CA2474307A1 (en) 2005-03-30
RU2004120840A (en) 2006-01-10
KR100594194B1 (en) 2006-06-30
KR20050031576A (en) 2005-04-06
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AU2004202806B2 (en) 2006-02-16
ES2251868B1 (en) 2007-06-16

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