EP1510166A2 - Silencer for vacuum cleaner - Google Patents

Silencer for vacuum cleaner Download PDF

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Publication number
EP1510166A2
EP1510166A2 EP03027843A EP03027843A EP1510166A2 EP 1510166 A2 EP1510166 A2 EP 1510166A2 EP 03027843 A EP03027843 A EP 03027843A EP 03027843 A EP03027843 A EP 03027843A EP 1510166 A2 EP1510166 A2 EP 1510166A2
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
silencer
silencing
exhaust channel
silencing board
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Withdrawn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
EP03027843A
Other languages
German (de)
French (fr)
Other versions
EP1510166A3 (en
Inventor
Zugen Ni
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.)
Suzhou Kingclean Floorcare Co Ltd
Original Assignee
Suzhou Kingclean Floorcare 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 Suzhou Kingclean Floorcare Co Ltd filed Critical Suzhou Kingclean Floorcare Co Ltd
Publication of EP1510166A2 publication Critical patent/EP1510166A2/en
Publication of EP1510166A3 publication Critical patent/EP1510166A3/en
Withdrawn legal-status Critical Current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
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping

Definitions

  • the invention relates to a silencer for a vacuum cleaner.
  • the noise is reduced by means of increasing the tortuosity of the airflow channel, i.e. by using labyrinthic airflow channels, to dissipate sound energy and by means of disposing porous sound-absorbing materials at the turning corners of the airflow channel to absorb sound energy.
  • Poor noise silencing effect is the main disadvantage of the above-mentioned silencing structures.
  • the object of the invention is to provide a silencer for a vacuum cleaner, which utilizes one or more silencing boards mounted in the exhaust channel to considerably diminish the noise generated by a vacuum cleaner in operation.
  • a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner.
  • a plurality of pores are distributed throughout in the silencing board.
  • a silencer for a vacuum cleaner compriscs at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner.
  • a plurality of pores are distributed throughout in the silencing board.
  • the silencing board is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel.
  • a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner.
  • a plurality of pores are distributed throughout in cach of the at least one silencing board.
  • the silencing board is mounted in an orientation perpendicular to the direction of the airflow through the exhaust channel.
  • the total passage area of the pores is less than half of the cross-sectional area of the exhaust channel.
  • the diameter of each pore in the silencing board is less than 6 mm, and wherein the thickness of the silencing board is larger than 0.5 mm.
  • a silencer for a vacuum cleaner comprises three silencing boards 1 mounted in the exhaust channel 3.
  • the silencing boards 1 are generally made of plastic material or metal.
  • a plurality of pores 2 are distributed throughout in each of the silencing boards 1.
  • Each of the silencing board 1 is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel 3.
  • the total passage area of the pores 2 in each of the silencing boards 1 is less than half of the cross-sectional area of the exhaust channel 3.
  • the diameter of each of the pores 2 in the silencing boards 1 are less than 6 mm and the thickness of each of the silencing boards 1 is larger than 0.5 mm.
  • one or more silencing boards 1 are mounted in the exhaust channel 3, which can effectively reduce the noise generated by a vacuum cleaner in operation.
  • the silencing board(s) 1 of the invention can be directly mounted in the exhaust channel 3, or be mounted in an expansion chamber connected to the exhaust channel 3. The latter with the silencing board(s) mounted within an expansion chamber will obtain a better effect of noise reduction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Duct Arrangements (AREA)
  • Exhaust Silencers (AREA)

Abstract

The present invention provides a silencer for a vacuum cleaner. The silencer for the vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner. A plurality of pores are distributed throughout in the silencing board. The silencing board is mounted in an orientation perpendicular to the direction of the airflow through the exhaust channel. The silencer for a vacuum cleaner can considerably diminish the noise generated by the vacuum cleaner in operation.

Description

Field of the Invention
The invention relates to a silencer for a vacuum cleaner.
Background of the Invention
In conventional exhaust air silencers for vacuum cleaners, the noise is reduced by means of increasing the tortuosity of the airflow channel, i.e. by using labyrinthic airflow channels, to dissipate sound energy and by means of disposing porous sound-absorbing materials at the turning corners of the airflow channel to absorb sound energy. Poor noise silencing effect, however, is the main disadvantage of the above-mentioned silencing structures.
Summary of the Invention
The object of the invention is to provide a silencer for a vacuum cleaner, which utilizes one or more silencing boards mounted in the exhaust channel to considerably diminish the noise generated by a vacuum cleaner in operation.
In one aspect of the invention, a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner. A plurality of pores are distributed throughout in the silencing board.
In a further aspect of the invention, a silencer for a vacuum cleaner compriscs at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner. A plurality of pores are distributed throughout in the silencing board. The silencing board is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel.
In a more detailed aspect of the invention, a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner. A plurality of pores are distributed throughout in cach of the at least one silencing board. The silencing board is mounted in an orientation perpendicular to the direction of the airflow through the exhaust channel. The total passage area of the pores is less than half of the cross-sectional area of the exhaust channel. The diameter of each pore in the silencing board is less than 6 mm, and wherein the thickness of the silencing board is larger than 0.5 mm.
The invention provides the following advantages:
  • 1.In the invention, one or more silencing boards are mounted in the exhaust channel, which can effectively diminish the noise generated by a vacuum cleaner in operation.
  • 2. The silencing board(s) of the invention can be directly mounted in the exhaust channel, or be mounted in an expansion chamber connected to the exhaust channel. The latter with the silencing board(s) mounted within an expansion chamber will obtain a better effect of noise reduction.
    • Brief Description of the Drawings:
  • Fig. 1 is a sectional view schematically illustrating a silencer for a vacuum cleaner according to the preferred embodiment of the present invention, wherein:
  • the numeral 1 denotes a silencing board, 2 denotes pores, and 3 denotes an exhaust channel.
    • Detailed Description of the Preferred Embodiment
    The invention is described bellow with reference to the preferred embodiment of the invention shown in Fig. 1.
    As shown in Fig. 1, a silencer for a vacuum cleaner comprises three silencing boards 1 mounted in the exhaust channel 3. The silencing boards 1 are generally made of plastic material or metal. A plurality of pores 2 are distributed throughout in each of the silencing boards 1. Each of the silencing board 1 is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel 3. The total passage area of the pores 2 in each of the silencing boards 1 is less than half of the cross-sectional area of the exhaust channel 3. The diameter of each of the pores 2 in the silencing boards 1 are less than 6 mm and the thickness of each of the silencing boards 1 is larger than 0.5 mm.
    In the invention, one or more silencing boards 1 are mounted in the exhaust channel 3, which can effectively reduce the noise generated by a vacuum cleaner in operation. The silencing board(s) 1 of the invention can be directly mounted in the exhaust channel 3, or be mounted in an expansion chamber connected to the exhaust channel 3. The latter with the silencing board(s) mounted within an expansion chamber will obtain a better effect of noise reduction.

    Claims (5)

    1. A silencer for a vacuum cleaner, which comprises at least one silencing board (1) mounted in an exhaust channel (3) of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner, with a plurality of pores (2) distributed throughout in the silencing board (1).
    2. A silencer for a vacuum cleaner according to Claim 1 wherein the silencing board (1) is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel (3).
    3. A silencer for a vacuum cleaner according to Claim 1 wherein the total passage area of the pores (2) is less than half of the cross-sectional area of the exhaust channel (3).
    4. A silencer for a vacuum cleaner according to Claim 1 wherein the diameter of each of the pores (2) in the silencing board (1) is less than 6 mm.
    5. A silencer for a vacuum cleaner according to Claim 1 wherein the thickness of the silencing board (1) is larger than 0.5 mm.
    EP03027843A 2003-08-26 2003-12-04 Silencer for vacuum cleaner Withdrawn EP1510166A3 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    CN03152869.4A CN1256908C (en) 2003-08-26 2003-08-26 Dust-collector noise silencer
    CN03152869 2003-08-26

    Publications (2)

    Publication Number Publication Date
    EP1510166A2 true EP1510166A2 (en) 2005-03-02
    EP1510166A3 EP1510166A3 (en) 2005-11-09

    Family

    ID=34085340

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03027843A Withdrawn EP1510166A3 (en) 2003-08-26 2003-12-04 Silencer for vacuum cleaner

    Country Status (6)

    Country Link
    US (1) US20050044654A1 (en)
    EP (1) EP1510166A3 (en)
    JP (1) JP2005066308A (en)
    CN (1) CN1256908C (en)
    AU (2) AU2003264304B2 (en)
    WO (1) WO2005018403A1 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2010097613A1 (en) * 2009-02-27 2010-09-02 Dyson Technology Limited A silencing arrangement
    DE102009054490A1 (en) 2009-12-10 2011-06-16 Poroson Gmbh Vacuum cleaner has suction line, collecting tank and wall that is formed as fabric with warp wires and weft wires or is formed as micro-perforated metal sheet or as expanded metal sheet
    DE102011007210A1 (en) * 2011-04-12 2012-10-18 BSH Bosch und Siemens Hausgeräte GmbH Low-noise exhaust air filter arrangement

    Families Citing this family (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN100423678C (en) * 2005-11-10 2008-10-08 苏州金莱克家用电器有限公司 Vacuum cleaner silencer
    CN102973207A (en) * 2012-12-21 2013-03-20 大连民族学院 Noise reduction device with function of changing sound transmission track
    CN103505149B (en) * 2013-09-24 2016-01-20 苏州市铂恒电器有限公司 Mute dust collector
    CN104014204A (en) * 2014-06-18 2014-09-03 黄月媚 Air purifier of high-efficient silence
    CN109520044B (en) * 2018-12-19 2020-11-13 馨科环保科技（上海）有限公司 Sound absorption and noise reduction composite device for air purifier
    CN109811702A (en) * 2019-03-26 2019-05-28 北京中科健德环保科技有限公司 A kind of circulatory flushing and suction dual-purpose dust-removing cleaning vehicle
    CN112545375B (en) * 2020-11-03 2023-05-23 广东美的白色家电技术创新中心有限公司 Be applied to cleaning device's wind channel subassembly, air-out module and cleaning device

    Family Cites Families (20)

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    Publication number Priority date Publication date Assignee Title
    US2882993A (en) * 1955-02-16 1959-04-21 Chance Vought Aircraft Inc Silencer
    US3380553A (en) * 1966-04-11 1968-04-30 Stephen J. Gibel Exhaust muffler with expansion chambers in inlet cover dome
    US3381774A (en) * 1967-07-10 1968-05-07 Mercury Metal Products Inc Muffler with interconnected end bells and telescoped inner pipe
    US3882961A (en) * 1974-04-01 1975-05-13 Servicemaster Ind Muffler for vacuum-inducing motor
    US4751980A (en) * 1986-10-20 1988-06-21 Devane Harry M Sound attenuation apparatus
    JPH01305916A (en) * 1988-06-06 1989-12-11 Hitachi Ltd vacuum cleaner
    SU1743578A1 (en) * 1989-05-11 1992-06-30 Московское Машиностроительное Производственное Объединение "Коммунар" Vacuum cleaner
    US5067584A (en) * 1990-04-25 1991-11-26 Williams William H Low cost replaceable type sound dampening unit for vacuum cleaning machine
    JPH05317208A (en) * 1992-05-22 1993-12-03 Mitsubishi Electric Home Appliance Co Ltd Vacuum cleaner
    US5513417A (en) * 1993-07-19 1996-05-07 Samsung Electronics Co., Ltd. Silencing device for vacuum cleaner
    JP3319646B2 (en) * 1994-03-15 2002-09-03 株式会社東芝 Vacuum cleaner silencer
    CN2271874Y (en) * 1995-10-04 1998-01-07 王秋凉 Improved vacuum cleaner
    EP0957740A1 (en) * 1995-10-10 1999-11-24 Nilfisk A/S A silencer for a suction cleaner
    US6052863A (en) * 1995-10-20 2000-04-25 Iowa State University Research Foundation, Inc. Central vacuum cleaner muffler
    CN2285627Y (en) * 1997-01-17 1998-07-08 周万龙 Noise reduction and waterproof device for vacuum cleaner exhaust outlet
    JPH1132947A (en) * 1997-06-30 1999-02-09 Daewoo Electron Co Ltd Noise absorbing device of vacuum cleaner
    KR100233513B1 (en) * 1997-09-23 1999-12-01 구자홍 Structure of air flow for vacuum cleaner
    US6035485A (en) * 1998-03-20 2000-03-14 Emerson Electric Co. Vacuum cleaner muffler/deflector
    JP2001280676A (en) * 2000-03-30 2001-10-10 Matsushita Electric Ind Co Ltd Silencer and electric apparatus provided with the same
    CN1279868C (en) * 2003-08-26 2006-10-18 苏州金莱克清洁器具有限公司 Dust-collector noise silencer

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2010097613A1 (en) * 2009-02-27 2010-09-02 Dyson Technology Limited A silencing arrangement
    US7921962B2 (en) 2009-02-27 2011-04-12 Dyson Technology Limited Silencing arrangement
    DE102009054490A1 (en) 2009-12-10 2011-06-16 Poroson Gmbh Vacuum cleaner has suction line, collecting tank and wall that is formed as fabric with warp wires and weft wires or is formed as micro-perforated metal sheet or as expanded metal sheet
    DE102011007210A1 (en) * 2011-04-12 2012-10-18 BSH Bosch und Siemens Hausgeräte GmbH Low-noise exhaust air filter arrangement

    Also Published As

    Publication number Publication date
    AU2003264304A1 (en) 2005-03-17
    CN1515220A (en) 2004-07-28
    AU2003264304B2 (en) 2005-10-13
    CN1256908C (en) 2006-05-24
    JP2005066308A (en) 2005-03-17
    US20050044654A1 (en) 2005-03-03
    EP1510166A3 (en) 2005-11-09
    AU2003289633A1 (en) 2005-03-10
    WO2005018403A1 (en) 2005-03-03

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