EP3189759A2 - Oberflächenreinigungsvorrichtung - Google Patents

Oberflächenreinigungsvorrichtung Download PDF

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Publication number
EP3189759A2
EP3189759A2 EP17156535.1A EP17156535A EP3189759A2 EP 3189759 A2 EP3189759 A2 EP 3189759A2 EP 17156535 A EP17156535 A EP 17156535A EP 3189759 A2 EP3189759 A2 EP 3189759A2
Authority
EP
European Patent Office
Prior art keywords
chamber
housing part
cleaning apparatus
surface cleaning
outlet
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.)
Withdrawn
Application number
EP17156535.1A
Other languages
English (en)
French (fr)
Other versions
EP3189759A3 (de
Inventor
Daniel Carter
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.)
Techtronic Floor Care Technology Ltd
Original Assignee
Techtronic Floor Care Technology 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 Techtronic Floor Care Technology Ltd filed Critical Techtronic Floor Care Technology Ltd
Priority to EP17156535.1A priority Critical patent/EP3189759A3/de
Publication of EP3189759A2 publication Critical patent/EP3189759A2/de
Publication of EP3189759A3 publication Critical patent/EP3189759A3/de
Withdrawn legal-status Critical Current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
    • 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
    • A47L9/0081—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
    • 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
    • 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
    • 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

Definitions

  • This invention relates generally to a surface cleaning apparatus, e.g. suction cleaners.
  • Suction cleaners are well known appliances, utilising a suction airflow to draw dust and other matter from whatever is being cleaned.
  • the airflow passes through a dust separator and collector wherein dust entrained in the suction airflow is separated from the airflow and retained for later disposal.
  • a high rate of airflow is required.
  • To create this a cleaner requires a powerful suction source in the form of a fan or impeller capable of creating the high airflow and a correspondingly-powerful electric motor to drive the fan.
  • One problem associated with such cleaners is that a high level of noise may be generated by the air flowing through the cleaner, and by the motor and fan which create the airflow. It is desirable, in particular for domestic use, that the noise emitted by a cleaner should be reduced as far as possible.
  • Embodiments of the present invention seek to provide a surface cleaning apparatus that overcomes, or at least substantially reduces, the disadvantages associated with known cleaners.
  • a surface cleaning apparatus including:
  • the chamber inlet and the chamber outlet may be radially offset from each other, e.g . such that the chamber outlet is only partially visible through the chamber inlet when viewed through the chamber from the chamber inlet end.
  • a surface cleaning apparatus including:
  • a surface cleaning apparatus including:
  • embodiments of the present invention include a surface cleaning apparatus, indicated generally at 1.
  • the surface cleaning apparatus 1 includes a separator 10 having a separator inlet 101 for receiving dirt laden air from a surface to be cleaned, and a separator outlet 102.
  • the surface cleaning apparatus 1 also includes a suction source 11.
  • the suction source 11 may include an electric motor 110 and a fan 111, the fan 111 being driven by the electric motor 110 to cause air to be sucked from a surface to be cleaned and to draw the air towards the suction source 11 via the separator 10.
  • the separator 10 may be a cyclonic separator.
  • Figure 1 shows a multi-stage cyclonic separator, although some embodiments may include a single or a dual-stage cyclonic separator. Indeed, some embodiments may include other forms of dust collection such as a bag.
  • the surface cleaning apparatus 1 includes a chamber 12 located between the separator 10 and the suction source 11.
  • the chamber 12 includes a chamber inlet 121 and a chamber outlet 122.
  • the chamber inlet 121 is in communication with the separator outlet 102 and the chamber outlet 122 is in communication with the suction source 11.
  • the chamber inlet 121 may be configured to receive air flowing from the separator outlet 102 via a duct 103. It is to be appreciated that the duct 103 does not itself form a part of the chamber 12, but rather provides a passage for air to flow between the separator 10 and the chamber 12.
  • the chamber 12 may include a first part 123 and a second part 124.
  • the first and second parts 123, 124 are shown as separate parts that may be connectable, for instance by a grub screw, rivet or even by an interference or friction fit.
  • the first and second parts 123, 124 may be formed integrally as a single component.
  • the chamber inlet 121 is formed in the first part 123 and the chamber outlet 122 is formed in the second part 124.
  • the suction source 11 may be held within the housing 13.
  • the housing 13 may include an inner housing 131 and an outer housing 132.
  • the suction source 11 may be held within the inner housing 131 and the inner housing 131 may be held within the outer housing 132.
  • Some embodiments may include a further main body housing 133, in which the inner and outer housings 131, 132 are held.
  • the inner housing 131 may include an inner housing base 131 a and an inner housing lid 131 b.
  • the inner housing base 131 a includes a wall 1310 having a generally cylindrical configuration. However, in other embodiments, the wall may be formed into a different shape such as a rectangle, triangle or other polygon.
  • the wall 1310 may include an array of apertures 1311 (or means to permit air to flow through the wall 1310) provided in one side thereof.
  • the suction source 11 may be held within the inner housing 131.
  • mounts 14a, 14b (for instance, formed from a natural or synthetic rubber, such as silicone) may be provided at either end of the suction source 11 to absorb vibrations from the suction source 11 and to provide for noise reduction.
  • the outer housing 132 may include an outer housing base 132a and an outer housing lid 132b.
  • the outer housing base 132a includes a wall 1320 having a generally cylindrical configuration. However, in other embodiments, the wall may be formed into a different shape such as a rectangle, triangle or other polygon.
  • the wall 1320 may include an array of apertures 1321 (or means to permit air to flow through the wall 1320) provided in one side thereof.
  • the array of apertures 1321 are provided diametrically opposite from the array of apertures 1311 provided in the inner housing base 131 a.
  • the inner housing 131 may be held within the outer housing 132. In some embodiments mounts (not shown) may be provided at either end of the inner housing 131 to further absorb vibrations from the suction source 11 and to provide for noise reduction.
  • the outer housing 132 may be held within a main body housing 133.
  • mounts 15a, 15b may be provided at either end of the outer housing 132 to further absorb vibrations from the suction source 11 and to provide for noise reduction.
  • mount 15a may be located adjacent to and in contact with the chamber 12.
  • the mount 15a may be at least partially housed within a cavity (not shown) in the second part 124 of the chamber 12. The inventors have discovered that in such embodiments the mount 15a further deadens the sound of air flowing through the cleaner.
  • Figure 4 shows the upstream face of the second part 124.
  • the second part 124 may include a ridge 125 which partially surrounds the chamber outlet 122.
  • the height of the ridge 125 may differ about its perimeter.
  • the second part 124 may also include a ramped (or curved) surface 126 extending between the ridge 125 and the chamber outlet 122. It is to be appreciated that the extent to which the surface 126 is ramped (or curved) will depend upon the height of the ridge 125 at a particular location about its perimeter.
  • the ramp angle (or degree of curvature) between the ridge 125 and the chamber outlet 122 will vary at different points around the perimeter of the ridge 125, depending on the height of the ridge 125 at that particular location.
  • the surface 126 is aligned with the chamber inlet 121 (this is most clearly shown in figure 3 ) so as to receive the air as it passes through the chamber 12 and to cause the air to change direction as it flows towards the chamber outlet 122.
  • the chamber inlet 121 is radially offset from the chamber outlet 122, such that the chamber outlet 122 is only partially visible when looking down the chamber 12 in the direction of arrow F.
  • the chamber outlet 122 may be partially occluded by a shield 127.
  • the shield 127 may be spaced from the remainder of the second part 124 by spaced-apart legs 128 to provide a passage 129a which permits air to flow through the chamber outlet 122 and towards the suction source 11.
  • the second part 124 may also include an array of further apertures 129b at least partially surrounding the passage 129a. The array of further apertures 129b may advantageously prevent a build-up of pressure in the chamber 12.
  • Figure 5 shows the downstream face of the second part 124.
  • the second part 124 includes a first series of parallel ribs 1240 extending from one side of the second part 124 to the other.
  • the second part 124 also includes a second series of parallel ribs 1241 arranged orthogonal to the first series of parallel ribs 1240 and extending from one side of the second part 124 to the other.
  • the ribs 1240, 1241 provide strength to the second part 124.
  • ribs 1240, 1241 may not be present.
  • a cavity (not shown) may be provided in the second part 124 for at least partially receiving the mount 15a. As mentioned previously, the inventors have discovered that the mount 15a further deadens the sound of air flowing through the cleaner when the mount 15a is at least partially received in a cavity of the second part 124.
  • Suction generated by the suction source 11 causes dirt-laden air to flow from a surface being cleaned and towards the separator 10 in the direction of arrows A and B.
  • the dirt-laden air flows in the direction of arrow C into the separator 10 via the separator inlet 101, where the dirt is separated from the flow of air in a conventional manner.
  • Air continues to flow in the direction of arrow D into a duct 103 via separator outlet 102 and through the duct 103 in the direction of arrow E.
  • the air flows into the chamber 12 via chamber inlet 121 in an axial direction indicated by arrow F.
  • the airflow then contacts the surface 126 of the second part 124 which causes the air to change direction and flow in a direction substantially orthogonal to the axial direction indicated by arrow F and towards the chamber outlet 122.
  • the noise that would have otherwise been generated by the air flowing towards the suction source 11 is significantly reduced. This results in a vacuum cleaner that is much quieter during use than a conventional cleaner.
  • the second part 124 is provided with a shield 127 that partially occludes the chamber outlet 122. It is to be understood that the shield 127 inhibits air flowing in the direction of indicated by arrow F from directly entering the chamber outlet 122, as this would generate significant levels of noise in doing so. Accordingly, all air flowing into the chamber 12 via the chamber inlet 121 is caused to change direction before flowing through the chamber outlet 122 and towards the suction source 11.
  • the shield 127 is spaced from the remainder of the second part 124 by spaced-apart legs 128 to provide passages 129a which permit air to flow through the chamber outlet 122 and towards the suction source 11.
  • the passages 129a are configured such that air flowing across the surface 126 (either in a direction substantially orthogonal to the axial direction indicated by arrow F or circumferentially around the axial direction indicated by arrow F) will flow to the suction source 11 without generating significant levels of noise.
  • the chamber inlet 121 is offset with respect to the chamber outlet 122 so that air is caused to change direction as it flows through the chamber 12 from the chamber inlet 121 to the chamber outlet 122. It is to be understood that air leaving the chamber 12 via the chamber outlet 122 flows towards the suction source 11 in the same direction as indicated by arrow F, but radially offset therefrom as indicated by arrow G.
  • the air flows through the fan 111 and is directed radially in the direction of arrow H and through the array of apertures 1311 located in the wall 1310 of the inner housing 131.
  • the air then comes into contact with the inner wall 1320 of the outer housing 132 which is configured to direct the air circumferentially around the inner housing 131 as indicated by arrows HH and then radially in the direction of arrow I and through the array of apertures 1321 located in the wall 1320 of the outer housing 132.
  • the air then comes into contact with an inner wall 1330 of the main body housing 133 which is configured to direct the air beneath the outer housing 132 in the direction of arrow J before being exhausted from the apparatus 1 via an exhaust filter 134 in the direction of arrow K.
  • the illustrated embodiment shows the air first flowing circumferentially around the inner housing 131 before being configured to flow beneath the outer housing 132
  • some embodiments may be configured such that the air first flows beneath the inner housing 131 ( i.e. between the inner and outer housings) and then circumferentially around the outer housing 132.
  • some embodiments may be configured such that the air first flows circumferentially around the inner housing 131 before being configured to flow circumferentially around the outer housing or even configured such that the first flows beneath the inner housing 131 and then beneath the outer housing 132 before being exhausted from the apparatus 1 via an exhaust filter 134 in the direction of arrow K.
  • the array of apertures 1311 in the wall 1310 of the inner housing 131 are configured to be diametrically opposite from the array of apertures 1321 in the wall 1320 of the outer housing 132.
  • the main body housing 133 may include an exhaust (post-suction source 11) filter 134. Whilst the separator 10 of the apparatus 1 may be effective at removing substantially all dust entrained in the suction airflow drawn from whatever is being cleaned, the brushes of the type of electric motor commonly used in vacuum cleaners may themselves cause some carbon dust to be created, and an exhaust filter 134 is effective at preventing such carbon dust (and any cleaning dust which might pass the separator 10) from being emitted to the external atmosphere.
  • the exhaust filter 134 may comprise a filter element which is insertable and removable from the exhaust main body housing 133. The filter element may be accessible for removal and replacement from the exterior of the apparatus 1, and be removable from and replaceable into a formation in the body of the apparatus 1.
  • upstream is intended mean towards the end of the airflow path at which the dirt-laden air enters the apparatus
  • downstream is intended to mean towards the end of the airflow path at which the air exits the apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning In General (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
EP17156535.1A 2014-03-07 2014-03-07 Oberflächenreinigungsvorrichtung Withdrawn EP3189759A3 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17156535.1A EP3189759A3 (de) 2014-03-07 2014-03-07 Oberflächenreinigungsvorrichtung

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/GB2014/050688 WO2015132546A1 (en) 2014-03-07 2014-03-07 Surface cleaning apparatus
EP14710623.1A EP3113662A1 (de) 2014-03-07 2014-03-07 Oberflächenreinigungsvorrichtung
EP17156535.1A EP3189759A3 (de) 2014-03-07 2014-03-07 Oberflächenreinigungsvorrichtung

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP14710623.1A Division EP3113662A1 (de) 2014-03-07 2014-03-07 Oberflächenreinigungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3189759A2 true EP3189759A2 (de) 2017-07-12
EP3189759A3 EP3189759A3 (de) 2017-08-09

Family

ID=50288183

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17156535.1A Withdrawn EP3189759A3 (de) 2014-03-07 2014-03-07 Oberflächenreinigungsvorrichtung
EP14710623.1A Withdrawn EP3113662A1 (de) 2014-03-07 2014-03-07 Oberflächenreinigungsvorrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14710623.1A Withdrawn EP3113662A1 (de) 2014-03-07 2014-03-07 Oberflächenreinigungsvorrichtung

Country Status (5)

Country Link
US (1) US20170042398A1 (de)
EP (2) EP3189759A3 (de)
CN (1) CN106068090B (de)
AU (1) AU2014385342A1 (de)
WO (1) WO2015132546A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2554934B (en) * 2016-10-14 2022-06-08 Techtronic Floor Care Tech Ltd Surface cleaning apparatus
CN107198492B (zh) * 2017-06-26 2022-11-29 美的集团股份有限公司 导流组件及吸尘器
CN114040698A (zh) * 2019-07-08 2022-02-11 伊莱克斯公司 手持式真空吸尘器及包括手持式真空吸尘器的真空吸尘器

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE3815321C2 (de) * 1988-05-05 1994-06-16 Licentia Gmbh Staubsauger
KR930001867A (ko) * 1991-07-26 1993-02-22 배순훈 저소음 진공청소기
US5502869A (en) * 1993-02-09 1996-04-02 Noise Cancellation Technologies, Inc. High volume, high performance, ultra quiet vacuum cleaner
JPWO2004010839A1 (ja) * 2002-07-25 2005-11-24 東芝テック株式会社 電気掃除機
CN1279868C (zh) * 2003-08-26 2006-10-18 苏州金莱克清洁器具有限公司 吸尘器消音装置
EP1795102B1 (de) * 2005-12-10 2014-05-07 LG Electronics, Inc. Staubsauger mit Halterung für Staubfiltereinheit
KR101212291B1 (ko) * 2005-12-30 2012-12-12 삼성전자주식회사 진공청소기
SE533268C2 (sv) * 2008-12-17 2010-08-03 Electrolux Ab Dammsugare
US9451855B2 (en) * 2013-02-28 2016-09-27 Omachron Intellectual Property Inc. Surface cleaning apparatus

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
WO2015132546A1 (en) 2015-09-11
EP3113662A1 (de) 2017-01-11
EP3189759A3 (de) 2017-08-09
AU2014385342A1 (en) 2016-09-08
CN106068090A (zh) 2016-11-02
US20170042398A1 (en) 2017-02-16
CN106068090B (zh) 2019-03-08

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