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Withdrawn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Withdrawn legal-status Critical Current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)
  • Exhaust Silencers (AREA)
  • Duct Arrangements (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 Noise absorption unit of dust collector
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 Efficient and mute air purifier
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 circulating dual-purpose dust removing cleaning lorry of suction
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882961A (en) * 1974-04-01 1975-05-13 Servicemaster Ind Muffler for vacuum-inducing motor
JPH05317208A (en) * 1992-05-22 1993-12-03 Mitsubishi Electric Home Appliance Co Ltd Vacuum cleaner
JPH07250789A (en) * 1994-03-15 1995-10-03 Toshiba Corp Silencer for vacuum cleaner
DE19843719A1 (en) * 1997-09-23 1999-04-01 Lg Electronics Inc Cylinder vacuum cleaner for domestic use
US6052863A (en) * 1995-10-20 2000-04-25 Iowa State University Research Foundation, Inc. Central vacuum cleaner muffler
JP2001280676A (en) * 2000-03-30 2001-10-10 Matsushita Electric Ind Co Ltd Silencer and electric apparatus provided with the same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
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
US4751980A (en) * 1986-10-20 1988-06-21 Devane Harry M Sound attenuation apparatus
JPH01305916A (en) * 1988-06-06 1989-12-11 Hitachi Ltd Electric 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
US5513417A (en) * 1993-07-19 1996-05-07 Samsung Electronics Co., Ltd. Silencing device for vacuum cleaner
CN2271874Y (en) * 1995-10-04 1998-01-07 王秋凉 Structure-improved dust collector
US6094774A (en) * 1995-10-10 2000-08-01 Nilfisk A/S Silencer for a suction cleaner
CN2285627Y (en) * 1997-01-17 1998-07-08 周万龙 Muffling and waterproofing device for air outlet of suction cleaner
JPH1132947A (en) * 1997-06-30 1999-02-09 Daewoo Electron Co Ltd Noise absorbing device of vacuum cleaner
US6035485A (en) * 1998-03-20 2000-03-14 Emerson Electric Co. Vacuum cleaner muffler/deflector
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882961A (en) * 1974-04-01 1975-05-13 Servicemaster Ind Muffler for vacuum-inducing motor
JPH05317208A (en) * 1992-05-22 1993-12-03 Mitsubishi Electric Home Appliance Co Ltd Vacuum cleaner
JPH07250789A (en) * 1994-03-15 1995-10-03 Toshiba Corp Silencer for vacuum cleaner
US6052863A (en) * 1995-10-20 2000-04-25 Iowa State University Research Foundation, Inc. Central vacuum cleaner muffler
DE19843719A1 (en) * 1997-09-23 1999-04-01 Lg Electronics Inc Cylinder vacuum cleaner for domestic use
JP2001280676A (en) * 2000-03-30 2001-10-10 Matsushita Electric Ind Co Ltd Silencer and electric apparatus provided with the same

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 131 (C-1175), 3 March 1994 (1994-03-03) & JP 05 317208 A (MITSUBISHI ELECTRIC HOME APPLIANCE CO LTD; others: 01), 3 December 1993 (1993-12-03) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 02, 29 February 1996 (1996-02-29) & JP 07 250789 A (TOSHIBA CORP; others: 01), 3 October 1995 (1995-10-03) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 02, 2 April 2002 (2002-04-02) & JP 2001 280676 A (MATSUSHITA ELECTRIC IND CO LTD), 10 October 2001 (2001-10-10) *

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

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