GB2396099A - Cyclone apparatus for a vacuum cleaner incorporating two filters - Google Patents

Cyclone apparatus for a vacuum cleaner incorporating two filters Download PDF

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Publication number
GB2396099A
GB2396099A GB0322369A GB0322369A GB2396099A GB 2396099 A GB2396099 A GB 2396099A GB 0322369 A GB0322369 A GB 0322369A GB 0322369 A GB0322369 A GB 0322369A GB 2396099 A GB2396099 A GB 2396099A
Authority
GB
United Kingdom
Prior art keywords
dust
filter
air
cyclone body
cyclone
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
GB0322369A
Other versions
GB2396099B (en
GB0322369D0 (en
Inventor
Byung-Jo 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 GB0322369D0 publication Critical patent/GB0322369D0/en
Publication of GB2396099A publication Critical patent/GB2396099A/en
Application granted granted Critical
Publication of GB2396099B publication Critical patent/GB2396099B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • A47L9/10—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices

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

Abstract

A cyclone dust-collecting apparatus for a vacuum cleaner has a cyclone body 20 having an air inlet port and an air discharge port. The cyclone body is such as to form a cyclonic stream in dust-laden air drawn in through the air inlet. A dust-collecting receptacle 30 is removably connected to the cyclone body for collecting dust separated from air by the cyclonic stream. A grille assembly 40 is disposed at an end of the air discharge port inside the cyclone body 20 for preventing dust from flowing back through the air discharge port of the cyclone body, and a fine dust filtering means 70 is disposed at a downstream end of the grille assembly for separating fine dust which has not been separated by the grille assembly. The fine dust filtering means is mounted in an aperture 60a which is disposed perpendicular to the air discharge part Fig 4.

Description

P512676GB
Cyclone Dust-Collecting Apparatus for a Vacuum Cleaner This invention relates to a vacuum cleaner, and more particularly to a cyclone dustcollecting apparatus for a vacuum cleaner, the apparatus being disposed at an 5 extension pipe of the vacuum cleaner for separating and collecting foreign substances (hereinafter called 'dust') by generating a cyclone stream in drawn-in air.
As shown in Figures l and 2, a conventional cyclone dust-collecting apparatus lO for a vacuum cleaner comprises a cyclone body 20, a dustcollecting receptacle 30, and a 10 grille assembly 40.
The cyclone body 20 comprises an air inlet pipe 21 connected to an extension pipe la (see Figure 2) associated with the suction port (not shown) of the vacuum cleaner, an air discharge pipe 22 connected to an extension pipe lb of the vacuum cleaner body 15 (not shown), an air inlet port 23 in fluid communication with the air inlet pipe, and an air discharge port 24 in fluid communication with the air discharge pipe. The cyclone body 20 generates a cyclonic stream in dust-laden air drawn in through the air inlet port 23. 20 The dust-collecting receptacle 30 is removably connected to the cyclone body 20, and collects dust separated from air by the cyclonic stream formed by the cyclone body.
The grille assembly 40 is mounted at an end of the air discharge port 24 inside the cyclone body 20, and prevents the dust collected in the dustcollecting receptacle 30 25 from flowing back through the air discharge port. The grille assembly 40 comprises a grille body 41, a plurality of paths 42 formed on the outer circumferential surface of the grille body for fluid communication with the air discharge port 24, and a dustblocking member 43 disposed at an end of the grille body.
30 Such a conventional cyclone dust-collecting apparatus has its air inlet and discharge pipes 21, 22 in fluid communication with the extension pipes la, lb of the vacuum
cleaner, as shown in Figure 3. Accordingly, dust-laden air is drawn in through the air inlet pipe 21 in an oblique direction with respect to the cyclone body 20 by a suction force generated at a suction port E of the vacuum cleaner, and the drawn-in air flows towards the bottom of the dustcollecting receptacle 30 forming a cyclonic stream. In 5 this process, the dust is separated from the air by a centrifugal force, and is collected in the dust-collecting receptacle 30. Air flows towards the cleaner body B through the paths 42 of the grille assembly 40, the air discharge port 24, and the air discharge pipe 22 in a cyclonic stream reversed at the bottom of the dust-collecting receptacle 30, this reversed cyclonic stream ascending with a radius smaller than that of the descending 10 cyclonic stream.
The cleaned air is discharged outside the cleaner body B through a paper filter (not shown) provided in the cleaner body, so that fine dust which is not separated by the cyclone dust-collecting apparatus is filtered by the paper filter and collected.
Such a cyclone dust-collecting apparatus is capable of reducing the amount of dust collected by the paper filter, as the dust in air drawn in through the suction port E of the cleaner is initially separated and collected before it reaches the paper filter of the cleaner body B. However, such a conventional cyclone dust-collecting apparatus cannot prevent fine dust of a particle size smaller than the paths 42 of the grille assembly 40 from flowing back through the path together with the discharged air, although it can effectively separate and collect dust of a particle size larger than the paths 42. As a result, fine dust 25 is collected in the paper filter provided in the cleaner body B. and the amount of the dust collected in the paper filter increases. Accordingly, the life span of the paper filter is shortened, and an improvement with respect to such a problem is required.
Accordingly, it is an aim of the invention to provide a cyclone dustcollecting apparatus 30 for a vacuum cleaner, which apparatus has a second filtering means for filtering minute dust in air reversing along the air path of the grille assembly, and thereby reducing the
amount of dust to be filtered at the paper filter and extending the life span of the paper filter. The present invention provides a cyclone dustcollecting apparatus for a vacuum 5 cleaner, the apparatus comprising: a cyclone body having an air inlet port and an air discharge port, the cyclone body being such as to form a cyclonic stream in air containing dust drawn in through the air inlet port; a dust-collecting receptacle removably connected to the cyclone body for lO collecting dust separated from air by the cyclonic stream; a grille assembly disposed at an end of the air discharge port inside the cyclone body for preventing dust from flowing back through the air discharge port of the cyclone body; and a fine dust filtering means disposed at a downstream end of the grille assembly of 15 the cyclone body for separating fine dust which has not been separated by the grille assembly. In a preferred embodiment the the fine dust filtering means comprises: a filter-mounting portion formed on the cyclone body, the filter-mounting portion 20 having an aperture open in a direction orthogonal with respect to the air discharge port; and a filter assembly removably inserted into the filter-mounting portion.
Preferably, the filter assembly comprises: 25 a filter case having an external shape corresponding to a shape and structure of the filtermounting portion; and a fine dust filter connected to the filter case.
That part of the filter case which comes in contact with the aperture of the 30 filter-mounting portion may have a packing member disposed thereon for sealing.
A grip portion may be provided on a front surface of the filter case for easy handling.
As this cyclone dust-collecting apparatus separates relatively large particles of dust from the drawn-in air by the grille assembly, and fine dust is separated from the air by the fine dust filtering means disposed at a downstream end of the grille assembly, it 5 thus presents less dust to the cleaner body. As a result, the amount of dust to be filtered at the paper filter is greatly reduced.
The invention will now be described in detail, by way of example, with reference to the drawings, in which: 10 Figure 1 is an exploded perspective view of a known cyclone dust-collecting apparatus for a vacuum cleaner; Figure 2 is a sectional view showing the apparatus of Figure I assembled; Figure 3 is a perspective view showing the cyclone dust-collecting apparatus of Figures 1 and 2 mounted to an extension pipe of a canister vacuum cleaner; 15 Figure 4 is an exploded perspective view of a cyclone dust-collecting apparatus constructed in accordance with the invention; and Figure 5 is a sectional view showing the apparatus of Figure 4 assembled.
Referring to the drawings, Figures 4 and 5 show a modified form of the cyclone 20 dust-collecting apparatus of Figures 1 to 3. Accordingly, like reference numerals will be used for like parts.
As shown in Figures 4 and 5, a cyclone dust-collecting apparatus 10 comprises a cyclone body 20, a dust-collecting receptacle 30, a grille assembly 40 and a fine dust 25 filtering means 50.
The cyclone body 20 comprises an air inlet pipe 21 connected to an extension pipe la (see Figure 5) associated with the suction port (not shown) of the vacuum cleaner, an air discharge pipe 22 connected to an extension pipe lb of the vacuum cleaner body 30 (not shown), an air inlet port 23 in fluid communication with the air inlet pipe, and an air discharge port 24 in fluid communication with the air discharge pipe. The cyclone
body 20 generates a cyclonic stream in dust-laden air drawn in through the air inlet port 23. The dust-collecting receptacle 30 is removably connected to the cyclone body 20, and 5 collects dust separated from air by the cyclonic stream formed by the cyclone body.
The grille assembly 40 is mounted at an end of the air discharge port 24 inside the cyclone body 20, and prevents the dust collected in the dustcollecting receptacle 30 from flowing back through the air discharge port 24. The grille assembly 40 comprises 10 a grille body 41, a plurality of paths 42 formed on the outer circumferential surface of the grille body for fluid communication with the air discharge port 24, and a dustblocking member 43 disposed at an end of the grille body.
The fine dust filtering means 50 separates the fine dust flowing back through the paths 15 42 of the grille assembly 40, and comprises a filtermounting portion 60 and a filter assembly 70.
The filter-mounting portion 60 is disposed at one side of the cyclone body 20, and has an aperture 60a whose mouth faces in the direction orthogonal with respect to the air 20 discharge port 24.
The filter assembly 70 is removably inserted into the filter-mounting portion 60, and separates fine dust container in the air discharged through the air discharge port 24.
The filter assembly 70 comprises a filter case 71 and a fine dust filter 72.
The filter case 71 has an external shape corresponding to the shape and structure of the filter-mounting portion 60, and the fine dust filter 72 is fixed to the filter case. The fine dust filter 72 is preferably made of a porous material such as sponge. In addition, that part of the filter case 71 which comes in contact with the aperture 60a of the 30 filtermounting portion 60 preferably has a packing member 71a disposed thereon for sealing. A grip portion 71b (see Figure 4) is provided for enabling easy handling of the filter assembly 70.
This cyclone dust-collecting apparatus has its air inlet pipe 21 and its air discharge pipe 22 in fluid communication with the extension pipes la, lb of the vacuum cleaner as shown in Figures 3 and 5. Accordingly, dustladen air is drawn in through the air inlet 5 pipe 21 in an oblique direction with respect to the cyclone body 20 by a suction force generated at a suction port E of the vacuum cleaner, and the drawn-in air flows towards the bottom of the dust-collecting receptacle 30 forming a cyclonic stream. In this process, the dust contained in the air is separated from the air by a centrifugal force, and is collected in the dust-collecting receptacle 30.
Air, from which dust is initially separated by the above operation, flows towards the cleaner body B through the paths 42 of the grille assembly 40, the fine dust filtering means 50 and the air discharge pipe 22 disposed at the air discharge port 24, in a cyclonic stream reversed at the bottom of the dust-collecting receptacle 30, this 15 reversed cyclonic stream ascending with a radius smaller than that of the descending cyclonic stream.
The fine dust still remaining in the discharged air downstream the grille assembly 40 is separated by the fine dust filtering means 50 of the filter assembly 70. The cleaned air 20 is then discharged towards the cleaner body B. Air discharged towards the cleaner body B is finally discharged outside via a paper filter (not shown) provided in the cleaner body B. 25 As described above, the cyclone dust-collecting apparatus of the present invention separates relatively large particles of dust from the drawn-in air by the grille assembly 40 and separates fine dust from the air by the fine dust filtering means 50. Thus, the amount of dust presented to the paper filter in the cleaner body is significantly reduced.
30 Accordingly, the fine dust filtering operation by the fine dust filtering means 50 significantly reduces the amount of dust flowing towards the cleaner body, and therefore extends the life span of a paper filter. Consequently, the number of paper
filters changed may be reduced, and the life span of a paper filter can be extended, thereby reducing the maintenance costs.

Claims (7)

  1. Claims
    ]. A cyclone dust-collecting apparatus for a vacuum cleaner, the apparatus comprising: 5 a cyclone body having an air inlet port and an air discharge port, the cyclone body being such as to form a cyclonic stream in air containing dust drawn in through the air inlet port; a dust- collecting receptacle removably connected to the cyclone body for collecting dust separated from air by the cyclonic stream; 10 a grille assembly disposed at an end of the air discharge port inside the cyclone body for preventing dust from flowing back through the air discharge port of the cyclone body; and a fine dust filtering means disposed at a downstream end of the grille assembly of the cyclone body for separating fine dust which has not been separated by the grille 1 S assembly.
  2. 2. Apparatus as claimed in claim 1, wherein the fine dust filtering means comprises: a filter-mounting portion formed on the cyclone body, the filter-mounting portion having an aperture open in a direction orthogonal with respect to the air discharge port; 20 and a filter assembly removably inserted into the filter-mounting portion.
  3. 3. Apparatus as claimed in claim 2, wherein the filter assembly comprises: a filter case having an external shape corresponding to a shape and structure of the 25 filter-mounting portion; and a fine dust filter connected to the filter case.
  4. 4. Apparatus as claimed in claim 3, wherein that part of the filter case which comes in contact with the aperture of the filter-mounting portion has a packing member 30 disposed thereon for sealing.
  5. 5. Apparatus as claimed in claim 3 or claim 4, wherein a grip portion is provided on a front surface of the filter case for easy handling.
  6. 6. A cyclone dust-collecting apparatus for a vacuum cleaner, the apparatus being 5 substantially as hereinbefore described with reference to, and as illustrated by, Figures 4 and 5 of the drawings.
  7. 7. A vacuum cleaner substantially as hereinbefore described with reference to, and as illustrated by, Figures 3 to S of the drawings.
GB0322369A 2002-12-09 2003-09-24 Cyclone dust-colleting apparatus for a vacuum cleaner Expired - Fee Related GB2396099B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2002-0077811A KR100483552B1 (en) 2002-12-09 2002-12-09 Cyclone-type dust collecting apparatus for vacuum cleaner

Publications (3)

Publication Number Publication Date
GB0322369D0 GB0322369D0 (en) 2003-10-22
GB2396099A true GB2396099A (en) 2004-06-16
GB2396099B GB2396099B (en) 2004-12-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0322369A Expired - Fee Related GB2396099B (en) 2002-12-09 2003-09-24 Cyclone dust-colleting apparatus for a vacuum cleaner

Country Status (12)

Country Link
US (1) US20040107530A1 (en)
JP (1) JP2004188175A (en)
KR (1) KR100483552B1 (en)
CN (1) CN1506018A (en)
AU (1) AU2003248385B2 (en)
CA (1) CA2447289A1 (en)
DE (1) DE10346903A1 (en)
ES (1) ES2272109B1 (en)
FR (1) FR2848090A1 (en)
GB (1) GB2396099B (en)
IT (1) ITMI20032404A1 (en)
RU (1) RU2262288C2 (en)

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Also Published As

Publication number Publication date
AU2003248385B2 (en) 2005-05-12
KR20040050174A (en) 2004-06-16
US20040107530A1 (en) 2004-06-10
ITMI20032404A1 (en) 2004-06-10
RU2262288C2 (en) 2005-10-20
GB2396099B (en) 2004-12-22
ES2272109B1 (en) 2008-03-16
KR100483552B1 (en) 2005-04-15
DE10346903A1 (en) 2004-07-08
GB0322369D0 (en) 2003-10-22
FR2848090A1 (en) 2004-06-11
CN1506018A (en) 2004-06-23
RU2003129876A (en) 2005-03-27
CA2447289A1 (en) 2004-06-09
ES2272109A1 (en) 2007-04-16
JP2004188175A (en) 2004-07-08
AU2003248385A1 (en) 2004-06-24

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